Merge branch 'main' into web-improvements

See: https://github.com/mui/material-ui/issues/31835#issuecomment-1153393901

.git-blame-ignore-revs

@@ -0,0 +1,11 @@
+# https://docs.github.com/en/repositories/working-with-files/using-files/viewing-a-file#ignore-commits-in-the-blame-view
+
+# Run prettier (https://github.com/binwiederhier/ntfy/pull/746)
+6f6a2d1f693070bf72e89d86748080e4825c9164
+c87549e71a10bc789eac8036078228f06e515a8e
+ca5d736a7169eb6b4b0d849e061d5bf9565dcc53
+2e27f58963feb9e4d1c573d4745d07770777fa7d
+
+# Run eslint (https://github.com/binwiederhier/ntfy/pull/748)
+f558b4dbe9bb5b9e0e87fada1215de2558353173
+8319f1cf26113167fb29fe12edaff5db74caf35f

.github/ISSUE_TEMPLATE/1_bug_report.md

@@ -0,0 +1,26 @@
+---
+name: 🐛 Bug Report
+about: Report any errors and problems
+title: ''
+labels: '🪲 bug'
+assignees: ''
+
+---
+
+:lady_beetle: **Describe the bug**
+<!-- A clear and concise description of the problem. -->
+
+:computer: **Components impacted**
+<!-- ntfy server, Android app, iOS app, web app  -->
+
+:bulb: **Screenshots and/or logs**
+<!-- 
+If applicable, add screenshots or share logs help explain your problem.
+To get logs from the ...
+- ntfy server: Enable "log-level: trace" in your server.yml file
+- Android app: Go to "Settings" -> "Record logs", then eventually "Copy/upload logs"
+- web app: Press "F12" and find the "Console" window 
+-->
+
+:crystal_ball: **Additional context**
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/2_enhancement_request.md

@@ -0,0 +1,26 @@
+---
+name: 💡 Feature/Enhancement Request
+about: Got a great idea? Let us know!
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+<!--
+
+Before you submit, consider asking on Discord/Matrix instead. You'll usually get an answer
+sooner, and there are more people there to help!
+
+- Discord: https://discord.gg/cT7ECsZj9w
+- Matrix: https://matrix.to/#/#ntfy:matrix.org / https://matrix.to/#/#ntfy-space:matrix.org
+
+-->
+
+:bulb: **Idea**
+<!-- Share your thoughts; try to be detailed if you can -->
+
+:computer: **Target components**
+<!-- Where should this feature/enhancement be added? -->
+<!-- e.g. ntfy server, Android app, iOS app, web app -->
+

.github/ISSUE_TEMPLATE/3_tech_support.md

@@ -0,0 +1,21 @@
+---
+name: 🆘 I need help with ...
+about: Installing ntfy, configuring the app, etc.
+title: ''
+labels: 'tech-support'
+assignees: ''
+
+---
+
+
+<!--
+
+STOP! 
+
+This is not the right place to ask for help. Consider asking on Discord/Matrix instead. 
+You'll usually get an answer sooner, and there are more people there to help!
+
+- Discord: https://discord.gg/cT7ECsZj9w
+- Matrix: https://matrix.to/#/#ntfy:matrix.org / https://matrix.to/#/#ntfy-space:matrix.org
+
+-->

.github/ISSUE_TEMPLATE/4_question.md

@@ -0,0 +1,21 @@
+---
+name: ❓ Question
+about: Ask a question about ntfy
+title: ''
+labels: 'question'
+assignees: ''
+
+---
+
+<!--
+
+Before you submit, consider asking on Discord/Matrix instead. You'll usually get an answer
+sooner, and there are more people there to help!
+
+- Discord: https://discord.gg/cT7ECsZj9w
+- Matrix: https://matrix.to/#/#ntfy:matrix.org / https://matrix.to/#/#ntfy-space:matrix.org
+
+-->
+
+:question: **Question**
+<!-- Go ahead and ask your question here :) -->

.github/workflows/build.yaml

@@ -4,30 +4,21 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout code
+        uses: actions/checkout@v3
       -
         name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: '1.19.x'
       -
         name: Install node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
-          node-version: '17'
-      -
-        name: Checkout code
-        uses: actions/checkout@v2
-      -
-        name: Cache Go and npm modules
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/go/bin
-            ~/.npm
-            web/node_modules
-          key: ${{ runner.os }}-ntfy-${{ hashFiles('**/go.sum', '**/package.lock') }}
-          restore-keys: ${{ runner.os }}-ntfy-
+          node-version: '18'
+          cache: 'npm'
+          cache-dependency-path: './web/package-lock.json'
       -
         name: Install dependencies
         run: make build-deps-ubuntu

.github/workflows/docs.yaml

@@ -30,7 +30,7 @@ jobs:
         run: |
           cd build/ntfy-docs.github.io
           git config user.name "GitHub Actions Bot"
-          git config user.email "<>"          
+          git config user.email "<actions@github.com>"          
           git add docs/
           git commit -m "Updated docs"
           git push origin main

.github/workflows/release.yaml

@@ -7,30 +7,21 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout code
+        uses: actions/checkout@v3
       -
         name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: '1.19.x'
       -
         name: Install node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
-          node-version: '17'
-      -
-        name: Checkout code
-        uses: actions/checkout@v2
-      -
-        name: Cache Go and npm modules
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/go/bin
-            ~/.npm
-            web/node_modules
-          key: ${{ runner.os }}-ntfy-${{ hashFiles('**/go.sum', '**/package.lock') }}
-          restore-keys: ${{ runner.os }}-ntfy-
+          node-version: '18'
+          cache: 'npm'
+          cache-dependency-path: './web/package-lock.json'
       -
         name: Docker login
         uses: docker/login-action@v2

.github/workflows/test.yaml

@@ -4,30 +4,21 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout code
+        uses: actions/checkout@v3
       -
         name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: '1.19.x'
       -
         name: Install node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
-          node-version: '17'
-      -
-        name: Checkout code
-        uses: actions/checkout@v2
-      -
-        name: Cache Go and npm modules
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/go/bin
-            ~/.npm
-            web/node_modules
-          key: ${{ runner.os }}-ntfy-${{ hashFiles('**/go.sum', '**/package.lock') }}
-          restore-keys: ${{ runner.os }}-ntfy-
+          node-version: '18'
+          cache: 'npm'
+          cache-dependency-path: './web/package-lock.json'
       -
         name: Install dependencies
         run: make build-deps-ubuntu

.gitignore

@@ -11,3 +11,4 @@ secrets/
 *.iml
 node_modules/
 .DS_Store
+__pycache__

.goreleaser.yml

@@ -97,7 +97,7 @@ nfpms:
       - dst: /var/lib/ntfy
         type: dir
       - dst: /usr/share/ntfy/logo.png
-        src: web/public/static/img/ntfy.png
+        src: web/public/static/images/ntfy.png
     scripts:
       preinstall: "scripts/preinst.sh"
       postinstall: "scripts/postinst.sh"

Dockerfile

@@ -1,9 +1,15 @@
 FROM alpine
-MAINTAINER Philipp C. Heckel <philipp.heckel@gmail.com>
+
+LABEL org.opencontainers.image.authors="philipp.heckel@gmail.com"
+LABEL org.opencontainers.image.url="https://ntfy.sh/"
+LABEL org.opencontainers.image.documentation="https://docs.ntfy.sh/"
+LABEL org.opencontainers.image.source="https://github.com/binwiederhier/ntfy"
+LABEL org.opencontainers.image.vendor="Philipp C. Heckel"
+LABEL org.opencontainers.image.licenses="Apache-2.0, GPL-2.0"
+LABEL org.opencontainers.image.title="ntfy"
+LABEL org.opencontainers.image.description="Send push notifications to your phone or desktop using PUT/POST"
 
 COPY ntfy /usr/bin
 
-HEALTHCHECK --interval=60s --timeout=10s CMD wget -q --tries=1 http://localhost/v1/health -O - | grep -Eo '"healthy"\s*:\s*true' || exit 1
-
 EXPOSE 80/tcp
 ENTRYPOINT ["ntfy"]

Makefile

@@ -35,6 +35,8 @@ help:
 	@echo "  make web                        - Build the web app"
 	@echo "  make web-deps                   - Install web app dependencies (npm install the universe)"
 	@echo "  make web-build                  - Actually build the web app"
+	@echo "  make web-format                 - Run prettier on the web app
+	@echo "  make web-format-check           - Run prettier on the web app, but don't change anything
 	@echo
 	@echo "Build documentation:"
 	@echo "  make docs                       - Build the documentation"
@@ -127,8 +129,7 @@ web-build:
 		&& rm -rf ../server/site \
 		&& mv build ../server/site \
 		&& rm \
-			../server/site/config.js \
-			../server/site/asset-manifest.json
+			../server/site/config.js
 
 web-deps:
 	cd web && npm install
@@ -137,29 +138,37 @@ web-deps:
 web-deps-update:
 	cd web && npm update
 
+web-format:
+	cd web && npm run format
+
+web-format-check:
+	cd web && npm run format:check
+
+web-lint:
+	cd web && npm run lint
 
 # Main server/client build
 
 cli: cli-deps
-	goreleaser build --snapshot --rm-dist
+	goreleaser build --snapshot --clean
 
 cli-linux-amd64: cli-deps-static-sites
-	goreleaser build --snapshot --rm-dist --id ntfy_linux_amd64
+	goreleaser build --snapshot --clean --id ntfy_linux_amd64
 
 cli-linux-armv6: cli-deps-static-sites cli-deps-gcc-armv6-armv7
-	goreleaser build --snapshot --rm-dist --id ntfy_linux_armv6
+	goreleaser build --snapshot --clean --id ntfy_linux_armv6
 
 cli-linux-armv7: cli-deps-static-sites cli-deps-gcc-armv6-armv7
-	goreleaser build --snapshot --rm-dist --id ntfy_linux_armv7
+	goreleaser build --snapshot --clean --id ntfy_linux_armv7
 
 cli-linux-arm64: cli-deps-static-sites cli-deps-gcc-arm64
-	goreleaser build --snapshot --rm-dist --id ntfy_linux_arm64
+	goreleaser build --snapshot --clean --id ntfy_linux_arm64
 
 cli-windows-amd64: cli-deps-static-sites
-	goreleaser build --snapshot --rm-dist --id ntfy_windows_amd64
+	goreleaser build --snapshot --clean --id ntfy_windows_amd64
 
 cli-darwin-all: cli-deps-static-sites
-	goreleaser build --snapshot --rm-dist --id ntfy_darwin_all
+	goreleaser build --snapshot --clean --id ntfy_darwin_all
 
 cli-linux-server: cli-deps-static-sites
 	# This is a target to build the CLI (including the server) manually.
@@ -226,7 +235,7 @@ cli-build-results:
 
 # Test/check targets
 
-check: test fmt-check vet lint staticcheck
+check: test web-format-check fmt-check vet web-lint lint staticcheck
 
 test: .PHONY
 	go test $(shell go list ./... | grep -vE 'ntfy/(test|examples|tools)')
@@ -277,11 +286,11 @@ staticcheck: .PHONY
 
 # Releasing targets
 
-release: clean update cli-deps release-checks docs web check
-	goreleaser release --rm-dist
+release: clean cli-deps release-checks docs web check
+	goreleaser release --clean
 
-release-snapshot: clean update cli-deps docs web check
-	goreleaser release --snapshot --skip-publish --rm-dist
+release-snapshot: clean cli-deps docs web check
+	goreleaser release --snapshot --skip-publish --clean
 
 release-checks:
 	$(eval LATEST_TAG := $(shell git describe --abbrev=0 --tags | cut -c2-))

README.md

@@ -1,4 +1,4 @@
-![ntfy](web/public/static/img/ntfy.png)
+![ntfy](web/public/static/images/ntfy.png)
 
 # ntfy.sh | Send push notifications to your phone or desktop via PUT/POST
 [![Release](https://img.shields.io/github/release/binwiederhier/ntfy.svg?color=success&style=flat-square)](https://github.com/binwiederhier/ntfy/releases/latest)
@@ -13,18 +13,26 @@
 [![Healthcheck](https://healthchecks.io/badge/68b65976-b3b0-4102-aec9-980921/kcoEgrLY.svg)](https://ntfy.statuspage.io/)
 [![Gitpod](https://img.shields.io/badge/Contribute%20with-Gitpod-908a85?logo=gitpod)](https://gitpod.io/#https://github.com/binwiederhier/ntfy)
 
-**ntfy** (pronounced "*notify*") is a simple HTTP-based [pub-sub](https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern) notification service. With ntfy, you can **send notifications to your phone or desktop via scripts** from any computer, **without having to sign up or pay any fees**. If you'd like to run your own instance of the service, you can easily do so since ntfy is open source.
+**ntfy** (pronounced "*notify*") is a simple HTTP-based [pub-sub](https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern) 
+notification service. With ntfy, you can **send notifications to your phone or desktop via scripts** from any computer, 
+**without having to sign up or pay any fees**. If you'd like to run your own instance of the service, you can easily do 
+so since ntfy is open source.
 
-You can access the free version of ntfy at **[ntfy.sh](https://ntfy.sh)**. There is also an [open source Android app](https://github.com/binwiederhier/ntfy-android) available on [Google Play](https://play.google.com/store/apps/details?id=io.heckel.ntfy) or [F-Droid](https://f-droid.org/en/packages/io.heckel.ntfy/), as well as an [open source iOS app](https://github.com/binwiederhier/ntfy-ios) available on the [App Store](https://apps.apple.com/us/app/ntfy/id1625396347).
+You can access the free version of ntfy at **[ntfy.sh](https://ntfy.sh)**. There is also an [open source Android app](https://github.com/binwiederhier/ntfy-android)
+available on [Google Play](https://play.google.com/store/apps/details?id=io.heckel.ntfy) or [F-Droid](https://f-droid.org/en/packages/io.heckel.ntfy/),
+as well as an [open source iOS app](https://github.com/binwiederhier/ntfy-ios) available on the [App Store](https://apps.apple.com/us/app/ntfy/id1625396347).
 
 <p>
-  <img src="web/public/static/img/screenshot-curl.png" height="180">
-  <img src="web/public/static/img/screenshot-web-detail.png" height="180">
-  <img src="web/public/static/img/screenshot-phone-main.jpg" height="180">
-  <img src="web/public/static/img/screenshot-phone-detail.jpg" height="180">
-  <img src="web/public/static/img/screenshot-phone-notification.jpg" height="180">
+  <img src=".github/images/screenshot-curl.png" height="180">
+  <img src=".github/images/screenshot-web-detail.png" height="180">
+  <img src=".github/images/screenshot-phone-main.jpg" height="180">
+  <img src=".github/images/screenshot-phone-detail.jpg" height="180">
+  <img src=".github/images/screenshot-phone-notification.jpg" height="180">
 </p>
 
+## [ntfy Pro](https://ntfy.sh/app) 💸 🎉
+I now offer paid plans for [ntfy.sh](https://ntfy.sh/) if you don't want to self-host, or you want to support the development of ntfy (→ [Purchase via web app](https://ntfy.sh/app)). You can **buy a plan for as low as $3.33/month** (if you use promo code `MYTOPIC`, limited time only). You can also donate via [GitHub Sponsors](https://github.com/sponsors/binwiederhier), and [Liberapay](https://liberapay.com/ntfy). I would be very humbled by your sponsorship. ❤️ 
+
 ## **[Documentation](https://ntfy.sh/docs/)**
 
 [Getting started](https://ntfy.sh/docs/) |
@@ -119,6 +127,20 @@ account costs. Even small donations are very much appreciated. A big fat **Thank
 <a href="https://github.com/KucharczykL"><img src="https://github.com/KucharczykL.png" width="40px" /></a>
 <a href="https://github.com/hansbickhofe"><img src="https://github.com/hansbickhofe.png" width="40px" /></a>
 <a href="https://github.com/caseodilla"><img src="https://github.com/caseodilla.png" width="40px" /></a>
+<a href="https://github.com/0xAF"><img src="https://github.com/0xAF.png" width="40px" /></a>
+<a href="https://github.com/soonoo"><img src="https://github.com/soonoo.png" width="40px" /></a>
+<a href="https://github.com/nichu42"><img src="https://github.com/nichu42.png" width="40px" /></a>
+<a href="https://github.com/samliebow"><img src="https://github.com/samliebow.png" width="40px" /></a>
+<a href="https://github.com/johman10"><img src="https://github.com/johman10.png" width="40px" /></a>
+<a href="https://github.com/R-Gld"><img src="https://github.com/R-Gld.png" width="40px" /></a>
+<a href="https://github.com/FingerlessGlov3s"><img src="https://github.com/FingerlessGlov3s.png" width="40px" /></a>
+<a href="https://github.com/Twisterado"><img src="https://github.com/Twisterado.png" width="40px" /></a>
+<a href="https://github.com/ScrumpyJack"><img src="https://github.com/ScrumpyJack.png" width="40px" /></a>
+<a href="https://github.com/andrejarrell"><img src="https://github.com/andrejarrell.png" width="40px" /></a>
+<a href="https://github.com/oaustegard"><img src="https://github.com/oaustegard.png" width="40px" /></a>
+<a href="https://github.com/CreativeWarlock"><img src="https://github.com/CreativeWarlock.png" width="40px" /></a>
+<a href="https://github.com/darkdragon-001"><img src="https://github.com/darkdragon-001.png" width="40px" /></a>
+<a href="https://github.com/jonathan-kosgei"><img src="https://github.com/jonathan-kosgei.png" width="40px" /></a>
 
 I'd also like to thank JetBrains for providing their awesome [IntelliJ IDEA](https://www.jetbrains.com/idea/) to me for free,
 and [DigitalOcean](https://m.do.co/c/442b929528db) (*referral link*) for supporting the project:

SECURITY.md

@@ -0,0 +1,10 @@
+# Security Policy
+
+## Supported Versions
+
+As of today, I only support the latest version of ntfy. Please make sure you stay up-to-date.
+
+## Reporting a Vulnerability
+
+Please report severe security issues privately via ntfy@heckel.io, [Discord](https://discord.gg/cT7ECsZj9w),
+or [Matrix](https://matrix.to/#/#ntfy:matrix.org) (my username is `binwiederhier`).

client/client.yml

@@ -5,10 +5,12 @@
 #
 # default-host: https://ntfy.sh
 
-# Default username and password will be used with "ntfy publish" if no credentials are provided on command line
-# Default username and password will be used with "ntfy subscribe" if no credentials are provided in subscription below
-# For an empty password, use empty double-quotes ("")
-#
+# Default credentials will be used with "ntfy publish" and "ntfy subscribe" if no other credentials are provided.
+# You can set a default token to use or a default user:password combination, but not both. For an empty password,
+# use empty double-quotes ("")
+
+# default-token:
+
 # default-user:
 # default-password:
 
@@ -30,6 +32,8 @@
 #         command: 'notify-send "$m"'
 #         user: phill
 #         password: mypass
+#       - topic: token_topic
+#         token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
 #
 # Variables:
 #     Variable        Aliases               Description

client/config.go

@@ -12,17 +12,22 @@ const (
 
 // Config is the config struct for a Client
 type Config struct {
-	DefaultHost     string  `yaml:"default-host"`
-	DefaultUser     string  `yaml:"default-user"`
-	DefaultPassword *string `yaml:"default-password"`
-	DefaultCommand  string  `yaml:"default-command"`
-	Subscribe       []struct {
-		Topic    string            `yaml:"topic"`
-		User     string            `yaml:"user"`
-		Password *string           `yaml:"password"`
-		Command  string            `yaml:"command"`
-		If       map[string]string `yaml:"if"`
-	} `yaml:"subscribe"`
+	DefaultHost     string      `yaml:"default-host"`
+	DefaultUser     string      `yaml:"default-user"`
+	DefaultPassword *string     `yaml:"default-password"`
+	DefaultToken    string      `yaml:"default-token"`
+	DefaultCommand  string      `yaml:"default-command"`
+	Subscribe       []Subscribe `yaml:"subscribe"`
+}
+
+// Subscribe is the struct for a Subscription within Config
+type Subscribe struct {
+	Topic    string            `yaml:"topic"`
+	User     string            `yaml:"user"`
+	Password *string           `yaml:"password"`
+	Token    string            `yaml:"token"`
+	Command  string            `yaml:"command"`
+	If       map[string]string `yaml:"if"`
 }
 
 // NewConfig creates a new Config struct for a Client
@@ -31,6 +36,7 @@ func NewConfig() *Config {
 		DefaultHost:     DefaultBaseURL,
 		DefaultUser:     "",
 		DefaultPassword: nil,
+		DefaultToken:    "",
 		DefaultCommand:  "",
 		Subscribe:       nil,
 	}

client/config_test.go

@@ -116,3 +116,25 @@ subscribe:
 	require.Equal(t, "phil", conf.Subscribe[0].User)
 	require.Nil(t, conf.Subscribe[0].Password)
 }
+
+func TestConfig_DefaultToken(t *testing.T) {
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(`
+default-host: http://localhost
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+subscribe:
+  - topic: mytopic
+`), 0600))
+
+	conf, err := client.LoadConfig(filename)
+	require.Nil(t, err)
+	require.Equal(t, "http://localhost", conf.DefaultHost)
+	require.Equal(t, "", conf.DefaultUser)
+	require.Nil(t, conf.DefaultPassword)
+	require.Equal(t, "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", conf.DefaultToken)
+	require.Equal(t, 1, len(conf.Subscribe))
+	require.Equal(t, "mytopic", conf.Subscribe[0].Topic)
+	require.Equal(t, "", conf.Subscribe[0].User)
+	require.Nil(t, conf.Subscribe[0].Password)
+	require.Equal(t, "", conf.Subscribe[0].Token)
+}

cmd/publish.go

@@ -40,7 +40,6 @@ var flagsPublish = append(
 	&cli.BoolFlag{Name: "wait-cmd", Aliases: []string{"wait_cmd", "cmd", "done"}, EnvVars: []string{"NTFY_WAIT_CMD"}, Usage: "run command and wait until it finishes before publishing"},
 	&cli.BoolFlag{Name: "no-cache", Aliases: []string{"no_cache", "C"}, EnvVars: []string{"NTFY_NO_CACHE"}, Usage: "do not cache message server-side"},
 	&cli.BoolFlag{Name: "no-firebase", Aliases: []string{"no_firebase", "F"}, EnvVars: []string{"NTFY_NO_FIREBASE"}, Usage: "do not forward message to Firebase"},
-	&cli.BoolFlag{Name: "env-topic", Aliases: []string{"env_topic", "P"}, EnvVars: []string{"NTFY_ENV_TOPIC"}, Usage: "use topic from NTFY_TOPIC env variable"},
 	&cli.BoolFlag{Name: "quiet", Aliases: []string{"q"}, EnvVars: []string{"NTFY_QUIET"}, Usage: "do not print message"},
 )
 
@@ -155,8 +154,7 @@ func execPublish(c *cli.Context) error {
 	}
 	if token != "" {
 		options = append(options, client.WithBearerAuth(token))
-	}
-	if user != "" {
+	} else if user != "" {
 		var pass string
 		parts := strings.SplitN(user, ":", 2)
 		if len(parts) == 2 {
@@ -172,6 +170,8 @@ func execPublish(c *cli.Context) error {
 			fmt.Fprintf(c.App.ErrWriter, "\r%s\r", strings.Repeat(" ", 20))
 		}
 		options = append(options, client.WithBasicAuth(user, pass))
+	} else if conf.DefaultToken != "" {
+		options = append(options, client.WithBearerAuth(conf.DefaultToken))
 	} else if conf.DefaultUser != "" && conf.DefaultPassword != nil {
 		options = append(options, client.WithBasicAuth(conf.DefaultUser, *conf.DefaultPassword))
 	}

cmd/publish_test.go

@@ -5,8 +5,11 @@ import (
 	"github.com/stretchr/testify/require"
 	"heckel.io/ntfy/test"
 	"heckel.io/ntfy/util"
+	"net/http"
+	"net/http/httptest"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"testing"
@@ -86,7 +89,6 @@ func TestCLI_Publish_All_The_Things(t *testing.T) {
 }
 
 func TestCLI_Publish_Wait_PID_And_Cmd(t *testing.T) {
-	t.Parallel()
 	s, port := test.StartServer(t)
 	defer test.StopServer(t, s, port)
 	topic := fmt.Sprintf("http://127.0.0.1:%d/mytopic", port)
@@ -131,11 +133,11 @@ func TestCLI_Publish_Wait_PID_And_Cmd(t *testing.T) {
 	require.Equal(t, `command failed: does-not-exist-no-really "really though", error: exec: "does-not-exist-no-really": executable file not found in $PATH`, err.Error())
 
 	// Tests with NTFY_TOPIC set ////
-	require.Nil(t, os.Setenv("NTFY_TOPIC", topic))
+	t.Setenv("NTFY_TOPIC", topic)
 
 	// Test: Successful command with NTFY_TOPIC
 	app, _, stdout, _ = newTestApp()
-	require.Nil(t, app.Run([]string{"ntfy", "publish", "--env-topic", "--cmd", "echo", "hi there"}))
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--cmd", "echo", "hi there"}))
 	m = toMessage(t, stdout.String())
 	require.Equal(t, "mytopic", m.Topic)
 
@@ -144,7 +146,155 @@ func TestCLI_Publish_Wait_PID_And_Cmd(t *testing.T) {
 	require.Nil(t, sleep.Start())
 	go sleep.Wait() // Must be called to release resources
 	app, _, stdout, _ = newTestApp()
-	require.Nil(t, app.Run([]string{"ntfy", "publish", "--env-topic", "--wait-pid", strconv.Itoa(sleep.Process.Pid)}))
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--wait-pid", strconv.Itoa(sleep.Process.Pid)}))
 	m = toMessage(t, stdout.String())
 	require.Regexp(t, `Process with PID \d+ exited after .+ms`, m.Message)
 }
+
+func TestCLI_Publish_Default_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Default_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Default_UserPass_CLI_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "--token", "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Default_Token_CLI_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "--user", "philipp:mypass", "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Default_Token_CLI_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_FAKETOKEN01234567890FAKETOKEN
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "--token", "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Default_UserPass_CLI_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: fakepass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+	require.Nil(t, app.Run([]string{"ntfy", "publish", "--config=" + filename, "--user", "philipp:mypass", "mytopic", "triggered"}))
+	m := toMessage(t, stdout.String())
+	require.Equal(t, "triggered", m.Message)
+}
+
+func TestCLI_Publish_Token_And_UserPass(t *testing.T) {
+	app, _, _, _ := newTestApp()
+	err := app.Run([]string{"ntfy", "publish", "--token", "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", "--user", "philipp:mypass", "mytopic", "triggered"})
+	require.Error(t, err)
+	require.Equal(t, "cannot set both --user and --token", err.Error())
+}

cmd/serve.go

@@ -37,8 +37,8 @@ var flagsServe = append(
 	append([]cli.Flag{}, flagsDefault...),
 	&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG_FILE"}, Value: defaultServerConfigFile, DefaultText: defaultServerConfigFile, Usage: "config file"},
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "base-url", Aliases: []string{"base_url", "B"}, EnvVars: []string{"NTFY_BASE_URL"}, Usage: "externally visible base URL for this host (e.g. https://ntfy.sh)"}),
-	altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"listen_http", "l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: server.DefaultListenHTTP, Usage: "ip:port used to as HTTP listen address"}),
-	altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-https", Aliases: []string{"listen_https", "L"}, EnvVars: []string{"NTFY_LISTEN_HTTPS"}, Usage: "ip:port used to as HTTPS listen address"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"listen_http", "l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: server.DefaultListenHTTP, Usage: "ip:port used as HTTP listen address"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-https", Aliases: []string{"listen_https", "L"}, EnvVars: []string{"NTFY_LISTEN_HTTPS"}, Usage: "ip:port used as HTTPS listen address"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-unix", Aliases: []string{"listen_unix", "U"}, EnvVars: []string{"NTFY_LISTEN_UNIX"}, Usage: "listen on unix socket path"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "listen-unix-mode", Aliases: []string{"listen_unix_mode"}, EnvVars: []string{"NTFY_LISTEN_UNIX_MODE"}, DefaultText: "system default", Usage: "file permissions of unix socket, e.g. 0700"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "key-file", Aliases: []string{"key_file", "K"}, EnvVars: []string{"NTFY_KEY_FILE"}, Usage: "private key file, if listen-https is set"}),
@@ -59,11 +59,12 @@ var flagsServe = append(
 	altsrc.NewDurationFlag(&cli.DurationFlag{Name: "keepalive-interval", Aliases: []string{"keepalive_interval", "k"}, EnvVars: []string{"NTFY_KEEPALIVE_INTERVAL"}, Value: server.DefaultKeepaliveInterval, Usage: "interval of keepalive messages"}),
 	altsrc.NewDurationFlag(&cli.DurationFlag{Name: "manager-interval", Aliases: []string{"manager_interval", "m"}, EnvVars: []string{"NTFY_MANAGER_INTERVAL"}, Value: server.DefaultManagerInterval, Usage: "interval of for message pruning and stats printing"}),
 	altsrc.NewStringSliceFlag(&cli.StringSliceFlag{Name: "disallowed-topics", Aliases: []string{"disallowed_topics"}, EnvVars: []string{"NTFY_DISALLOWED_TOPICS"}, Usage: "topics that are not allowed to be used"}),
-	altsrc.NewStringFlag(&cli.StringFlag{Name: "web-root", Aliases: []string{"web_root"}, EnvVars: []string{"NTFY_WEB_ROOT"}, Value: "app", Usage: "sets web root to landing page (home), web app (app) or disabled (disable)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "web-root", Aliases: []string{"web_root"}, EnvVars: []string{"NTFY_WEB_ROOT"}, Value: "/", Usage: "sets root of the web app (e.g. /, or /app), or disables it (disable)"}),
 	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "enable-signup", Aliases: []string{"enable_signup"}, EnvVars: []string{"NTFY_ENABLE_SIGNUP"}, Value: false, Usage: "allows users to sign up via the web app, or API"}),
 	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "enable-login", Aliases: []string{"enable_login"}, EnvVars: []string{"NTFY_ENABLE_LOGIN"}, Value: false, Usage: "allows users to log in via the web app, or API"}),
 	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "enable-reservations", Aliases: []string{"enable_reservations"}, EnvVars: []string{"NTFY_ENABLE_RESERVATIONS"}, Value: false, Usage: "allows users to reserve topics (if their tier allows it)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "upstream-base-url", Aliases: []string{"upstream_base_url"}, EnvVars: []string{"NTFY_UPSTREAM_BASE_URL"}, Value: "", Usage: "forward poll request to an upstream server, this is needed for iOS push notifications for self-hosted servers"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "upstream-access-token", Aliases: []string{"upstream_access_token"}, EnvVars: []string{"NTFY_UPSTREAM_ACCESS_TOKEN"}, Value: "", Usage: "access token to use for the upstream server; needed only if upstream rate limits are exceeded or upstream server requires auth"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-addr", Aliases: []string{"smtp_sender_addr"}, EnvVars: []string{"NTFY_SMTP_SENDER_ADDR"}, Usage: "SMTP server address (host:port) for outgoing emails"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-user", Aliases: []string{"smtp_sender_user"}, EnvVars: []string{"NTFY_SMTP_SENDER_USER"}, Usage: "SMTP user (if e-mail sending is enabled)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-sender-pass", Aliases: []string{"smtp_sender_pass"}, EnvVars: []string{"NTFY_SMTP_SENDER_PASS"}, Usage: "SMTP password (if e-mail sending is enabled)"}),
@@ -71,6 +72,10 @@ var flagsServe = append(
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-listen", Aliases: []string{"smtp_server_listen"}, EnvVars: []string{"NTFY_SMTP_SERVER_LISTEN"}, Usage: "SMTP server address (ip:port) for incoming emails, e.g. :25"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-domain", Aliases: []string{"smtp_server_domain"}, EnvVars: []string{"NTFY_SMTP_SERVER_DOMAIN"}, Usage: "SMTP domain for incoming e-mail, e.g. ntfy.sh"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "smtp-server-addr-prefix", Aliases: []string{"smtp_server_addr_prefix"}, EnvVars: []string{"NTFY_SMTP_SERVER_ADDR_PREFIX"}, Usage: "SMTP email address prefix for topics to prevent spam (e.g. 'ntfy-')"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "twilio-account", Aliases: []string{"twilio_account"}, EnvVars: []string{"NTFY_TWILIO_ACCOUNT"}, Usage: "Twilio account SID, used for phone calls, e.g. AC123..."}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "twilio-auth-token", Aliases: []string{"twilio_auth_token"}, EnvVars: []string{"NTFY_TWILIO_AUTH_TOKEN"}, Usage: "Twilio auth token"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "twilio-phone-number", Aliases: []string{"twilio_phone_number"}, EnvVars: []string{"NTFY_TWILIO_PHONE_NUMBER"}, Usage: "Twilio number to use for outgoing calls"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "twilio-verify-service", Aliases: []string{"twilio_verify_service"}, EnvVars: []string{"NTFY_TWILIO_VERIFY_SERVICE"}, Usage: "Twilio Verify service ID, used for phone number verification"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "global-topic-limit", Aliases: []string{"global_topic_limit", "T"}, EnvVars: []string{"NTFY_GLOBAL_TOPIC_LIMIT"}, Value: server.DefaultTotalTopicLimit, Usage: "total number of topics allowed"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-subscription-limit", Aliases: []string{"visitor_subscription_limit"}, EnvVars: []string{"NTFY_VISITOR_SUBSCRIPTION_LIMIT"}, Value: server.DefaultVisitorSubscriptionLimit, Usage: "number of subscriptions per visitor"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "visitor-attachment-total-size-limit", Aliases: []string{"visitor_attachment_total_size_limit"}, EnvVars: []string{"NTFY_VISITOR_ATTACHMENT_TOTAL_SIZE_LIMIT"}, Value: "100M", Usage: "total storage limit used for attachments per visitor"}),
@@ -81,9 +86,14 @@ var flagsServe = append(
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-message-daily-limit", Aliases: []string{"visitor_message_daily_limit"}, EnvVars: []string{"NTFY_VISITOR_MESSAGE_DAILY_LIMIT"}, Value: server.DefaultVisitorMessageDailyLimit, Usage: "max messages per visitor per day, derived from request limit if unset"}),
 	altsrc.NewIntFlag(&cli.IntFlag{Name: "visitor-email-limit-burst", Aliases: []string{"visitor_email_limit_burst"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_BURST"}, Value: server.DefaultVisitorEmailLimitBurst, Usage: "initial limit of e-mails per visitor"}),
 	altsrc.NewDurationFlag(&cli.DurationFlag{Name: "visitor-email-limit-replenish", Aliases: []string{"visitor_email_limit_replenish"}, EnvVars: []string{"NTFY_VISITOR_EMAIL_LIMIT_REPLENISH"}, Value: server.DefaultVisitorEmailLimitReplenish, Usage: "interval at which burst limit is replenished (one per x)"}),
+	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "visitor-subscriber-rate-limiting", Aliases: []string{"visitor_subscriber_rate_limiting"}, EnvVars: []string{"NTFY_VISITOR_SUBSCRIBER_RATE_LIMITING"}, Value: false, Usage: "enables subscriber-based rate limiting"}),
 	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "behind-proxy", Aliases: []string{"behind_proxy", "P"}, EnvVars: []string{"NTFY_BEHIND_PROXY"}, Value: false, Usage: "if set, use X-Forwarded-For header to determine visitor IP address (for rate limiting)"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "stripe-secret-key", Aliases: []string{"stripe_secret_key"}, EnvVars: []string{"NTFY_STRIPE_SECRET_KEY"}, Value: "", Usage: "key used for the Stripe API communication, this enables payments"}),
 	altsrc.NewStringFlag(&cli.StringFlag{Name: "stripe-webhook-key", Aliases: []string{"stripe_webhook_key"}, EnvVars: []string{"NTFY_STRIPE_WEBHOOK_KEY"}, Value: "", Usage: "key required to validate the authenticity of incoming webhooks from Stripe"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "billing-contact", Aliases: []string{"billing_contact"}, EnvVars: []string{"NTFY_BILLING_CONTACT"}, Value: "", Usage: "e-mail or website to display in upgrade dialog (only if payments are enabled)"}),
+	altsrc.NewBoolFlag(&cli.BoolFlag{Name: "enable-metrics", Aliases: []string{"enable_metrics"}, EnvVars: []string{"NTFY_ENABLE_METRICS"}, Value: false, Usage: "if set, Prometheus metrics are exposed via the /metrics endpoint"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "metrics-listen-http", Aliases: []string{"metrics_listen_http"}, EnvVars: []string{"NTFY_METRICS_LISTEN_HTTP"}, Usage: "ip:port used to expose the metrics endpoint (implicitly enables metrics)"}),
+	altsrc.NewStringFlag(&cli.StringFlag{Name: "profile-listen-http", Aliases: []string{"profile_listen_http"}, EnvVars: []string{"NTFY_PROFILE_LISTEN_HTTP"}, Usage: "ip:port used to expose the profiling endpoints (implicitly enables profiling)"}),
 )
 
 var cmdServe = &cli.Command{
@@ -139,6 +149,7 @@ func execServe(c *cli.Context) error {
 	enableLogin := c.Bool("enable-login")
 	enableReservations := c.Bool("enable-reservations")
 	upstreamBaseURL := c.String("upstream-base-url")
+	upstreamAccessToken := c.String("upstream-access-token")
 	smtpSenderAddr := c.String("smtp-sender-addr")
 	smtpSenderUser := c.String("smtp-sender-user")
 	smtpSenderPass := c.String("smtp-sender-pass")
@@ -146,8 +157,13 @@ func execServe(c *cli.Context) error {
 	smtpServerListen := c.String("smtp-server-listen")
 	smtpServerDomain := c.String("smtp-server-domain")
 	smtpServerAddrPrefix := c.String("smtp-server-addr-prefix")
+	twilioAccount := c.String("twilio-account")
+	twilioAuthToken := c.String("twilio-auth-token")
+	twilioPhoneNumber := c.String("twilio-phone-number")
+	twilioVerifyService := c.String("twilio-verify-service")
 	totalTopicLimit := c.Int("global-topic-limit")
 	visitorSubscriptionLimit := c.Int("visitor-subscription-limit")
+	visitorSubscriberRateLimiting := c.Bool("visitor-subscriber-rate-limiting")
 	visitorAttachmentTotalSizeLimitStr := c.String("visitor-attachment-total-size-limit")
 	visitorAttachmentDailyBandwidthLimitStr := c.String("visitor-attachment-daily-bandwidth-limit")
 	visitorRequestLimitBurst := c.Int("visitor-request-limit-burst")
@@ -159,6 +175,10 @@ func execServe(c *cli.Context) error {
 	behindProxy := c.Bool("behind-proxy")
 	stripeSecretKey := c.String("stripe-secret-key")
 	stripeWebhookKey := c.String("stripe-webhook-key")
+	billingContact := c.String("billing-contact")
+	metricsListenHTTP := c.String("metrics-listen-http")
+	enableMetrics := c.Bool("enable-metrics") || metricsListenHTTP != ""
+	profileListenHTTP := c.String("profile-listen-http")
 
 	// Check values
 	if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
@@ -175,8 +195,8 @@ func execServe(c *cli.Context) error {
 		return errors.New("if set, certificate file must exist")
 	} else if listenHTTPS != "" && (keyFile == "" || certFile == "") {
 		return errors.New("if listen-https is set, both key-file and cert-file must be set")
-	} else if smtpSenderAddr != "" && (baseURL == "" || smtpSenderUser == "" || smtpSenderPass == "" || smtpSenderFrom == "") {
-		return errors.New("if smtp-sender-addr is set, base-url, smtp-sender-user, smtp-sender-pass and smtp-sender-from must also be set")
+	} else if smtpSenderAddr != "" && (baseURL == "" || smtpSenderFrom == "") {
+		return errors.New("if smtp-sender-addr is set, base-url, and smtp-sender-from must also be set")
 	} else if smtpServerListen != "" && smtpServerDomain == "" {
 		return errors.New("if smtp-server-listen is set, smtp-server-domain must also be set")
 	} else if attachmentCacheDir != "" && baseURL == "" {
@@ -185,8 +205,6 @@ func execServe(c *cli.Context) error {
 		return errors.New("if set, base-url must start with http:// or https://")
 	} else if baseURL != "" && strings.HasSuffix(baseURL, "/") {
 		return errors.New("if set, base-url must not end with a slash (/)")
-	} else if !util.Contains([]string{"app", "home", "disable"}, webRoot) {
-		return errors.New("if set, web-root must be 'home' or 'app'")
 	} else if upstreamBaseURL != "" && !strings.HasPrefix(upstreamBaseURL, "http://") && !strings.HasPrefix(upstreamBaseURL, "https://") {
 		return errors.New("if set, upstream-base-url must start with http:// or https://")
 	} else if upstreamBaseURL != "" && strings.HasSuffix(upstreamBaseURL, "/") {
@@ -201,10 +219,20 @@ func execServe(c *cli.Context) error {
 		return errors.New("cannot set enable-signup without also setting enable-login")
 	} else if stripeSecretKey != "" && (stripeWebhookKey == "" || baseURL == "") {
 		return errors.New("if stripe-secret-key is set, stripe-webhook-key and base-url must also be set")
+	} else if twilioAccount != "" && (twilioAuthToken == "" || twilioPhoneNumber == "" || twilioVerifyService == "" || baseURL == "" || authFile == "") {
+		return errors.New("if twilio-account is set, twilio-auth-token, twilio-phone-number, twilio-verify-service, base-url, and auth-file must also be set")
 	}
 
-	webRootIsApp := webRoot == "app"
-	enableWeb := webRoot != "disable"
+	// Backwards compatibility
+	if webRoot == "app" {
+		webRoot = "/"
+	} else if webRoot == "home" {
+		webRoot = "/app"
+	} else if webRoot == "disable" {
+		webRoot = ""
+	} else if !strings.HasPrefix(webRoot, "/") {
+		webRoot = "/" + webRoot
+	}
 
 	// Default auth permissions
 	authDefault, err := user.ParsePermission(authDefaultAccess)
@@ -283,8 +311,9 @@ func execServe(c *cli.Context) error {
 	conf.KeepaliveInterval = keepaliveInterval
 	conf.ManagerInterval = managerInterval
 	conf.DisallowedTopics = disallowedTopics
-	conf.WebRootIsApp = webRootIsApp
+	conf.WebRoot = webRoot
 	conf.UpstreamBaseURL = upstreamBaseURL
+	conf.UpstreamAccessToken = upstreamAccessToken
 	conf.SMTPSenderAddr = smtpSenderAddr
 	conf.SMTPSenderUser = smtpSenderUser
 	conf.SMTPSenderPass = smtpSenderPass
@@ -292,6 +321,10 @@ func execServe(c *cli.Context) error {
 	conf.SMTPServerListen = smtpServerListen
 	conf.SMTPServerDomain = smtpServerDomain
 	conf.SMTPServerAddrPrefix = smtpServerAddrPrefix
+	conf.TwilioAccount = twilioAccount
+	conf.TwilioAuthToken = twilioAuthToken
+	conf.TwilioPhoneNumber = twilioPhoneNumber
+	conf.TwilioVerifyService = twilioVerifyService
 	conf.TotalTopicLimit = totalTopicLimit
 	conf.VisitorSubscriptionLimit = visitorSubscriptionLimit
 	conf.VisitorAttachmentTotalSizeLimit = visitorAttachmentTotalSizeLimit
@@ -302,13 +335,17 @@ func execServe(c *cli.Context) error {
 	conf.VisitorMessageDailyLimit = visitorMessageDailyLimit
 	conf.VisitorEmailLimitBurst = visitorEmailLimitBurst
 	conf.VisitorEmailLimitReplenish = visitorEmailLimitReplenish
+	conf.VisitorSubscriberRateLimiting = visitorSubscriberRateLimiting
 	conf.BehindProxy = behindProxy
 	conf.StripeSecretKey = stripeSecretKey
 	conf.StripeWebhookKey = stripeWebhookKey
-	conf.EnableWeb = enableWeb
+	conf.BillingContact = billingContact
 	conf.EnableSignup = enableSignup
 	conf.EnableLogin = enableLogin
 	conf.EnableReservations = enableReservations
+	conf.EnableMetrics = enableMetrics
+	conf.MetricsListenHTTP = metricsListenHTTP
+	conf.ProfileListenHTTP = profileListenHTTP
 	conf.Version = c.App.Version
 
 	// Set up hot-reloading of config

cmd/serve_test.go

@@ -22,7 +22,6 @@ func init() {
 }
 
 func TestCLI_Serve_Unix_Curl(t *testing.T) {
-	t.Parallel()
 	sockFile := filepath.Join(t.TempDir(), "ntfy.sock")
 	configFile := newEmptyFile(t) // Avoid issues with existing server.yml file on system
 	go func() {

cmd/subscribe.go

@@ -30,6 +30,7 @@ var flagsSubscribe = append(
 	&cli.StringFlag{Name: "config", Aliases: []string{"c"}, Usage: "client config file"},
 	&cli.StringFlag{Name: "since", Aliases: []string{"s"}, Usage: "return events since `SINCE` (Unix timestamp, or all)"},
 	&cli.StringFlag{Name: "user", Aliases: []string{"u"}, EnvVars: []string{"NTFY_USER"}, Usage: "username[:password] used to auth against the server"},
+	&cli.StringFlag{Name: "token", Aliases: []string{"k"}, EnvVars: []string{"NTFY_TOKEN"}, Usage: "access token used to auth against the server"},
 	&cli.BoolFlag{Name: "from-config", Aliases: []string{"from_config", "C"}, Usage: "read subscriptions from config file (service mode)"},
 	&cli.BoolFlag{Name: "poll", Aliases: []string{"p"}, Usage: "return events and exit, do not listen for new events"},
 	&cli.BoolFlag{Name: "scheduled", Aliases: []string{"sched", "S"}, Usage: "also return scheduled/delayed events"},
@@ -97,11 +98,18 @@ func execSubscribe(c *cli.Context) error {
 	cl := client.New(conf)
 	since := c.String("since")
 	user := c.String("user")
+	token := c.String("token")
 	poll := c.Bool("poll")
 	scheduled := c.Bool("scheduled")
 	fromConfig := c.Bool("from-config")
 	topic := c.Args().Get(0)
 	command := c.Args().Get(1)
+
+	// Checks
+	if user != "" && token != "" {
+		return errors.New("cannot set both --user and --token")
+	}
+
 	if !fromConfig {
 		conf.Subscribe = nil // wipe if --from-config not passed
 	}
@@ -109,7 +117,9 @@ func execSubscribe(c *cli.Context) error {
 	if since != "" {
 		options = append(options, client.WithSince(since))
 	}
-	if user != "" {
+	if token != "" {
+		options = append(options, client.WithBearerAuth(token))
+	} else if user != "" {
 		var pass string
 		parts := strings.SplitN(user, ":", 2)
 		if len(parts) == 2 {
@@ -125,9 +135,10 @@ func execSubscribe(c *cli.Context) error {
 			fmt.Fprintf(c.App.ErrWriter, "\r%s\r", strings.Repeat(" ", 20))
 		}
 		options = append(options, client.WithBasicAuth(user, pass))
-	}
-	if poll {
-		options = append(options, client.WithPoll())
+	} else if conf.DefaultToken != "" {
+		options = append(options, client.WithBearerAuth(conf.DefaultToken))
+	} else if conf.DefaultUser != "" && conf.DefaultPassword != nil {
+		options = append(options, client.WithBasicAuth(conf.DefaultUser, *conf.DefaultPassword))
 	}
 	if scheduled {
 		options = append(options, client.WithScheduled())
@@ -145,6 +156,9 @@ func execSubscribe(c *cli.Context) error {
 
 func doPoll(c *cli.Context, cl *client.Client, conf *client.Config, topic, command string, options ...client.SubscribeOption) error {
 	for _, s := range conf.Subscribe { // may be nil
+		if auth := maybeAddAuthHeader(s, conf); auth != nil {
+			options = append(options, auth)
+		}
 		if err := doPollSingle(c, cl, s.Topic, s.Command, options...); err != nil {
 			return err
 		}
@@ -175,21 +189,11 @@ func doSubscribe(c *cli.Context, cl *client.Client, conf *client.Config, topic,
 		for filter, value := range s.If {
 			topicOptions = append(topicOptions, client.WithFilter(filter, value))
 		}
-		var user string
-		var password *string
-		if s.User != "" {
-			user = s.User
-		} else if conf.DefaultUser != "" {
-			user = conf.DefaultUser
-		}
-		if s.Password != nil {
-			password = s.Password
-		} else if conf.DefaultPassword != nil {
-			password = conf.DefaultPassword
-		}
-		if user != "" && password != nil {
-			topicOptions = append(topicOptions, client.WithBasicAuth(user, *password))
+
+		if auth := maybeAddAuthHeader(s, conf); auth != nil {
+			topicOptions = append(topicOptions, auth)
 		}
+
 		subscriptionID := cl.Subscribe(s.Topic, topicOptions...)
 		if s.Command != "" {
 			cmds[subscriptionID] = s.Command
@@ -214,6 +218,25 @@ func doSubscribe(c *cli.Context, cl *client.Client, conf *client.Config, topic,
 	return nil
 }
 
+func maybeAddAuthHeader(s client.Subscribe, conf *client.Config) client.SubscribeOption {
+	// check for subscription token then subscription user:pass
+	if s.Token != "" {
+		return client.WithBearerAuth(s.Token)
+	}
+	if s.User != "" && s.Password != nil {
+		return client.WithBasicAuth(s.User, *s.Password)
+	}
+
+	// if no subscription token nor subscription user:pass, check for default token then default user:pass
+	if conf.DefaultToken != "" {
+		return client.WithBearerAuth(conf.DefaultToken)
+	}
+	if conf.DefaultUser != "" && conf.DefaultPassword != nil {
+		return client.WithBasicAuth(conf.DefaultUser, *conf.DefaultPassword)
+	}
+	return nil
+}
+
 func printMessageOrRunCommand(c *cli.Context, m *client.Message, command string) {
 	if command != "" {
 		runCommand(c, command, m)

cmd/subscribe_test.go

@@ -0,0 +1,361 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/require"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestCLI_Subscribe_Default_UserPass_Subscription_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: mypass
+subscribe:
+  - topic: mytopic
+    token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_Subscription_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+subscribe:
+  - topic: mytopic
+    user: philipp
+    password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_Subscription_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_FAKETOKEN01234567890FAKETOKEN
+subscribe:
+  - topic: mytopic
+    token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_UserPass_Subscription_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: fake
+default-password: password
+subscribe:
+  - topic: mytopic
+    user: philipp
+    password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_Subscription_Empty(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+subscribe:
+  - topic: mytopic
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_UserPass_Subscription_Empty(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: mypass
+subscribe:
+  - topic: mytopic
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Empty_Subscription_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+subscribe:
+  - topic: mytopic
+    token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Empty_Subscription_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+subscribe:
+  - topic: mytopic
+    user: philipp
+    password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_CLI_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_FAKETOKEN0123456789FAKETOKEN
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename, "--token", "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", "mytopic"}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_CLI_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename, "--user", "philipp:mypass", "mytopic"}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_Token_Subscription_Token_CLI_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_FAKETOKEN01234567890FAKETOKEN
+subscribe:
+  - topic: mytopic
+    token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--from-config", "--config=" + filename, "--user", "philipp:mypass"}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Token_And_UserPass(t *testing.T) {
+	app, _, _, _ := newTestApp()
+	err := app.Run([]string{"ntfy", "subscribe", "--poll", "--token", "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", "--user", "philipp:mypass", "mytopic", "triggered"})
+	require.Error(t, err)
+	require.Equal(t, "cannot set both --user and --token", err.Error())
+}
+
+func TestCLI_Subscribe_Default_Token(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-token: tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--config=" + filename, "mytopic"}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}
+
+func TestCLI_Subscribe_Default_UserPass(t *testing.T) {
+	message := `{"id":"RXIQBFaieLVr","time":124,"expires":1124,"event":"message","topic":"mytopic","message":"triggered"}`
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic/json", r.URL.Path)
+		require.Equal(t, "Basic cGhpbGlwcDpteXBhc3M=", r.Header.Get("Authorization"))
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(message))
+	}))
+	defer server.Close()
+
+	filename := filepath.Join(t.TempDir(), "client.yml")
+	require.Nil(t, os.WriteFile(filename, []byte(fmt.Sprintf(`
+default-host: %s
+default-user: philipp
+default-password: mypass
+`, server.URL)), 0600))
+
+	app, _, stdout, _ := newTestApp()
+
+	require.Nil(t, app.Run([]string{"ntfy", "subscribe", "--poll", "--config=" + filename, "mytopic"}))
+
+	require.Equal(t, message, strings.TrimSpace(stdout.String()))
+}

cmd/tier.go

@@ -8,7 +8,6 @@ import (
 	"github.com/urfave/cli/v2"
 	"heckel.io/ntfy/user"
 	"heckel.io/ntfy/util"
-	"time"
 )
 
 func init() {
@@ -17,12 +16,13 @@ func init() {
 
 const (
 	defaultMessageLimit             = 5000
-	defaultMessageExpiryDuration    = 12 * time.Hour
+	defaultMessageExpiryDuration    = "12h"
 	defaultEmailLimit               = 20
+	defaultCallLimit                = 0
 	defaultReservationLimit         = 3
 	defaultAttachmentFileSizeLimit  = "15M"
 	defaultAttachmentTotalSizeLimit = "100M"
-	defaultAttachmentExpiryDuration = 6 * time.Hour
+	defaultAttachmentExpiryDuration = "6h"
 	defaultAttachmentBandwidthLimit = "1G"
 )
 
@@ -47,12 +47,13 @@ var cmdTier = &cli.Command{
 			Flags: []cli.Flag{
 				&cli.StringFlag{Name: "name", Usage: "tier name"},
 				&cli.Int64Flag{Name: "message-limit", Value: defaultMessageLimit, Usage: "daily message limit"},
-				&cli.DurationFlag{Name: "message-expiry-duration", Value: defaultMessageExpiryDuration, Usage: "duration after which messages are deleted"},
+				&cli.StringFlag{Name: "message-expiry-duration", Value: defaultMessageExpiryDuration, Usage: "duration after which messages are deleted"},
 				&cli.Int64Flag{Name: "email-limit", Value: defaultEmailLimit, Usage: "daily email limit"},
+				&cli.Int64Flag{Name: "call-limit", Value: defaultCallLimit, Usage: "daily phone call limit"},
 				&cli.Int64Flag{Name: "reservation-limit", Value: defaultReservationLimit, Usage: "topic reservation limit"},
 				&cli.StringFlag{Name: "attachment-file-size-limit", Value: defaultAttachmentFileSizeLimit, Usage: "per-attachment file size limit"},
 				&cli.StringFlag{Name: "attachment-total-size-limit", Value: defaultAttachmentTotalSizeLimit, Usage: "total size limit of attachments for the user"},
-				&cli.DurationFlag{Name: "attachment-expiry-duration", Value: defaultAttachmentExpiryDuration, Usage: "duration after which attachments are deleted"},
+				&cli.StringFlag{Name: "attachment-expiry-duration", Value: defaultAttachmentExpiryDuration, Usage: "duration after which attachments are deleted"},
 				&cli.StringFlag{Name: "attachment-bandwidth-limit", Value: defaultAttachmentBandwidthLimit, Usage: "daily bandwidth limit for attachment uploads/downloads"},
 				&cli.StringFlag{Name: "stripe-monthly-price-id", Usage: "Monthly Stripe price ID for paid tiers (e.g. price_12345)"},
 				&cli.StringFlag{Name: "stripe-yearly-price-id", Usage: "Yearly Stripe price ID for paid tiers (e.g. price_12345)"},
@@ -90,12 +91,13 @@ Examples:
 			Flags: []cli.Flag{
 				&cli.StringFlag{Name: "name", Usage: "tier name"},
 				&cli.Int64Flag{Name: "message-limit", Usage: "daily message limit"},
-				&cli.DurationFlag{Name: "message-expiry-duration", Usage: "duration after which messages are deleted"},
+				&cli.StringFlag{Name: "message-expiry-duration", Usage: "duration after which messages are deleted"},
 				&cli.Int64Flag{Name: "email-limit", Usage: "daily email limit"},
+				&cli.Int64Flag{Name: "call-limit", Usage: "daily phone call limit"},
 				&cli.Int64Flag{Name: "reservation-limit", Usage: "topic reservation limit"},
 				&cli.StringFlag{Name: "attachment-file-size-limit", Usage: "per-attachment file size limit"},
 				&cli.StringFlag{Name: "attachment-total-size-limit", Usage: "total size limit of attachments for the user"},
-				&cli.DurationFlag{Name: "attachment-expiry-duration", Usage: "duration after which attachments are deleted"},
+				&cli.StringFlag{Name: "attachment-expiry-duration", Usage: "duration after which attachments are deleted"},
 				&cli.StringFlag{Name: "attachment-bandwidth-limit", Usage: "daily bandwidth limit for attachment uploads/downloads"},
 				&cli.StringFlag{Name: "stripe-monthly-price-id", Usage: "Monthly Stripe price ID for paid tiers (e.g. price_12345)"},
 				&cli.StringFlag{Name: "stripe-yearly-price-id", Usage: "Yearly Stripe price ID for paid tiers (e.g. price_12345)"},
@@ -189,6 +191,10 @@ func execTierAdd(c *cli.Context) error {
 	if name == "" {
 		name = code
 	}
+	messageExpiryDuration, err := util.ParseDuration(c.String("message-expiry-duration"))
+	if err != nil {
+		return err
+	}
 	attachmentFileSizeLimit, err := util.ParseSize(c.String("attachment-file-size-limit"))
 	if err != nil {
 		return err
@@ -201,17 +207,22 @@ func execTierAdd(c *cli.Context) error {
 	if err != nil {
 		return err
 	}
+	attachmentExpiryDuration, err := util.ParseDuration(c.String("attachment-expiry-duration"))
+	if err != nil {
+		return err
+	}
 	tier := &user.Tier{
 		ID:                       "", // Generated
 		Code:                     code,
 		Name:                     name,
 		MessageLimit:             c.Int64("message-limit"),
-		MessageExpiryDuration:    c.Duration("message-expiry-duration"),
+		MessageExpiryDuration:    messageExpiryDuration,
 		EmailLimit:               c.Int64("email-limit"),
+		CallLimit:                c.Int64("call-limit"),
 		ReservationLimit:         c.Int64("reservation-limit"),
 		AttachmentFileSizeLimit:  attachmentFileSizeLimit,
 		AttachmentTotalSizeLimit: attachmentTotalSizeLimit,
-		AttachmentExpiryDuration: c.Duration("attachment-expiry-duration"),
+		AttachmentExpiryDuration: attachmentExpiryDuration,
 		AttachmentBandwidthLimit: attachmentBandwidthLimit,
 		StripeMonthlyPriceID:     c.String("stripe-monthly-price-id"),
 		StripeYearlyPriceID:      c.String("stripe-yearly-price-id"),
@@ -252,11 +263,17 @@ func execTierChange(c *cli.Context) error {
 		tier.MessageLimit = c.Int64("message-limit")
 	}
 	if c.IsSet("message-expiry-duration") {
-		tier.MessageExpiryDuration = c.Duration("message-expiry-duration")
+		tier.MessageExpiryDuration, err = util.ParseDuration(c.String("message-expiry-duration"))
+		if err != nil {
+			return err
+		}
 	}
 	if c.IsSet("email-limit") {
 		tier.EmailLimit = c.Int64("email-limit")
 	}
+	if c.IsSet("call-limit") {
+		tier.CallLimit = c.Int64("call-limit")
+	}
 	if c.IsSet("reservation-limit") {
 		tier.ReservationLimit = c.Int64("reservation-limit")
 	}
@@ -273,7 +290,10 @@ func execTierChange(c *cli.Context) error {
 		}
 	}
 	if c.IsSet("attachment-expiry-duration") {
-		tier.AttachmentExpiryDuration = c.Duration("attachment-expiry-duration")
+		tier.AttachmentExpiryDuration, err = util.ParseDuration(c.String("attachment-expiry-duration"))
+		if err != nil {
+			return err
+		}
 	}
 	if c.IsSet("attachment-bandwidth-limit") {
 		tier.AttachmentBandwidthLimit, err = util.ParseSize(c.String("attachment-bandwidth-limit"))
@@ -344,6 +364,7 @@ func printTier(c *cli.Context, tier *user.Tier) {
 	fmt.Fprintf(c.App.ErrWriter, "- Message limit: %d\n", tier.MessageLimit)
 	fmt.Fprintf(c.App.ErrWriter, "- Message expiry duration: %s (%d seconds)\n", tier.MessageExpiryDuration.String(), int64(tier.MessageExpiryDuration.Seconds()))
 	fmt.Fprintf(c.App.ErrWriter, "- Email limit: %d\n", tier.EmailLimit)
+	fmt.Fprintf(c.App.ErrWriter, "- Phone call limit: %d\n", tier.CallLimit)
 	fmt.Fprintf(c.App.ErrWriter, "- Reservation limit: %d\n", tier.ReservationLimit)
 	fmt.Fprintf(c.App.ErrWriter, "- Attachment file size limit: %s\n", util.FormatSize(tier.AttachmentFileSizeLimit))
 	fmt.Fprintf(c.App.ErrWriter, "- Attachment total size limit: %s\n", util.FormatSize(tier.AttachmentTotalSizeLimit))

cmd/tier_test.go

@@ -29,11 +29,11 @@ func TestCLI_Tier_AddListChangeDelete(t *testing.T) {
 	app, _, _, stderr = newTestApp()
 	require.Nil(t, runTierCommand(app, conf, "change",
 		"--message-limit=999",
-		"--message-expiry-duration=99h",
+		"--message-expiry-duration=2d",
 		"--email-limit=91",
 		"--reservation-limit=98",
 		"--attachment-file-size-limit=100m",
-		"--attachment-expiry-duration=7h",
+		"--attachment-expiry-duration=1d",
 		"--attachment-total-size-limit=10G",
 		"--attachment-bandwidth-limit=100G",
 		"--stripe-monthly-price-id=price_991",
@@ -41,11 +41,11 @@ func TestCLI_Tier_AddListChangeDelete(t *testing.T) {
 		"pro",
 	))
 	require.Contains(t, stderr.String(), "- Message limit: 999")
-	require.Contains(t, stderr.String(), "- Message expiry duration: 99h")
+	require.Contains(t, stderr.String(), "- Message expiry duration: 48h")
 	require.Contains(t, stderr.String(), "- Email limit: 91")
 	require.Contains(t, stderr.String(), "- Reservation limit: 98")
 	require.Contains(t, stderr.String(), "- Attachment file size limit: 100.0 MB")
-	require.Contains(t, stderr.String(), "- Attachment expiry duration: 7h")
+	require.Contains(t, stderr.String(), "- Attachment expiry duration: 24h")
 	require.Contains(t, stderr.String(), "- Attachment total size limit: 10.0 GB")
 	require.Contains(t, stderr.String(), "- Stripe prices (monthly/yearly): price_991 / price_992")
 

docs/_overrides/main.html

@@ -32,11 +32,11 @@
         <path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z"></path>
     </svg>
 </button>
-If you like ntfy, please consider sponsoring it via <a target="_blank" href="https://github.com/sponsors/binwiederhier"><strong>GitHub Sponsors</strong></a>
+If you like ntfy, please consider sponsoring me via <a target="_blank" href="https://github.com/sponsors/binwiederhier"><strong>GitHub Sponsors</strong></a>
 or <a target="_blank" href="https://en.liberapay.com/ntfy/"><strong>Liberapay</strong></a>
 <svg xmlns="http://www.w3.org/2000/svg" role="img" viewBox="0 0 36 36" class="twemoji md-footer-custom-text">
     <path fill="#DD2E44" d="M35.885 11.833c0-5.45-4.418-9.868-9.867-9.868-3.308 0-6.227 1.633-8.018 4.129-1.791-2.496-4.71-4.129-8.017-4.129-5.45 0-9.868 4.417-9.868 9.868 0 .772.098 1.52.266 2.241C1.751 22.587 11.216 31.568 18 34.034c6.783-2.466 16.249-11.447 17.617-19.959.17-.721.268-1.469.268-2.242z"/>
-</svg>
+</svg>, or subscribing to <a target="_blank" href="https://ntfy.sh/app"><strong>ntfy Pro</strong></a>.
 <script>
     announceBarKey = 'announce-bar-closed-sponsor';
     document.getElementById('announce-bar-close').addEventListener('click', (e) => {

docs/config.md

@@ -759,6 +759,7 @@ To configure it, simply set `upstream-base-url` like so:
 
 ``` yaml
 upstream-base-url: "https://ntfy.sh"
+upstream-access-token: "..." # optional, only if rate limits exceeded, or upstream server protected
 ```
 
 If set, all incoming messages will publish a poll request to the configured upstream server, containing
@@ -814,6 +815,7 @@ ntfy tier add \
   --message-limit=10000 \
   --message-expiry-duration=24h \
   --email-limit=50 \
+  --call-limit=10 \
   --reservation-limit=10 \
   --attachment-file-size-limit=100M \
   --attachment-total-size-limit=1G \
@@ -839,6 +841,8 @@ config options:
    enables payments in the ntfy web app (e.g. Upgrade dialog). See [API keys](https://dashboard.stripe.com/apikeys).
 * `stripe-webhook-key` is the key required to validate the authenticity of incoming webhooks from Stripe.
    Webhooks are essential to keep the local database in sync with the payment provider. See [Webhooks](https://dashboard.stripe.com/webhooks).
+* `billing-contact` is an email address or website displayed in the "Upgrade tier" dialog to let people reach
+   out with billing questions. If unset, nothing will be displayed.
 
 In addition to setting these two options, you also need to define a [Stripe webhook](https://dashboard.stripe.com/webhooks)
 for the `customer.subscription.updated` and `customer.subscription.deleted` event, which points 
@@ -849,8 +853,25 @@ Here's an example:
 ``` yaml
 stripe-secret-key: "sk_test_ZmhzZGtmbGhkc2tqZmhzYcO2a2hmbGtnaHNkbGtnaGRsc2hnbG"
 stripe-webhook-key: "whsec_ZnNkZnNIRExBSFNES0hBRFNmaHNka2ZsaGR"
+billing-contact: "phil@example.com"
 ```
 
+## Phone calls
+ntfy supports phone calls via [Twilio](https://www.twilio.com/) as a call provider. If phone calls are enabled,
+users can verify and add a phone number, and then receive phone calls when publishing a message using the `X-Call` header.
+See [publishing page](publish.md#phone-calls) for more details.
+
+To enable Twilio integration, sign up with [Twilio](https://www.twilio.com/), purchase a phone number (Toll free numbers
+are the easiest), and then configure the following options:
+
+* `twilio-account` is the Twilio account SID, e.g. AC12345beefbeef67890beefbeef122586
+* `twilio-auth-token` is the Twilio auth token, e.g. affebeef258625862586258625862586
+* `twilio-phone-number` is the outgoing phone number you purchased, e.g. +18775132586 
+* `twilio-verify-service` is the Twilio Verify service SID, e.g. VA12345beefbeef67890beefbeef122586
+
+After you have configured phone calls, create a [tier](#tiers) with a call limit (e.g. `ntfy tier create --call-limit=10 ...`),
+and then assign it to a user. Users may then use the `X-Call` header to receive a phone call when publishing a message.
+
 ## Rate limiting
 !!! info
     Be aware that if you are running ntfy behind a proxy, you must set the `behind-proxy` flag. 
@@ -929,6 +950,25 @@ If this ever happens, there will be a log message that looks something like this
 WARN Firebase quota exceeded (likely for topic), temporarily denying Firebase access to visitor
 ```
 
+### Subscriber-based rate limiting
+By default, ntfy puts almost all rate limits on the message publisher, e.g. number of messages, requests, and attachment
+size are all based on the visitor who publishes a message. **Subscriber-based rate limiting is a way to use the rate limits
+of a topic's subscriber, instead of the limits of the publisher.**
+
+If enabled, subscribers may opt to have published messages counted against their own rate limits, as opposed
+to the publisher's rate limits. This is especially useful to increase the amount of messages that high-volume
+publishers (e.g. Matrix/Mastodon servers) are allowed to send.
+
+Once enabled, a client may send a `Rate-Topics: <topic1>,<topic2>,...` header when subscribing to topics via
+HTTP stream, or websockets, thereby registering itself as the "rate visitor", i.e. the visitor whose rate limits
+to use when publishing on this topic. Note that setting the rate visitor requires **read-write permission** on the topic.
+
+UnifiedPush only: If this setting is enabled, publishing to UnifiedPush topics will lead to an `HTTP 507 Insufficient Storage`
+response if no "rate visitor" has been previously registered. This is to avoid burning the publisher's 
+`visitor-message-daily-limit`.
+
+To enable subscriber-based rate limiting, set `visitor-subscriber-rate-limiting: true`.
+
 ## Tuning for scale
 If you're running ntfy for your home server, you probably don't need to worry about scale at all. In its default config,
 if it's not behind a proxy, the ntfy server can keep about **as many connections as the open file limit allows**.
@@ -1067,6 +1107,60 @@ and [here](https://easyengine.io/tutorials/nginx/block-wp-login-php-bruteforce-a
     maxretry = 10
     ```
 
+## Health checks
+A preliminary health check API endpoint is exposed at `/v1/health`. The endpoint returns a `json` response in the format shown below.
+If a non-200 HTTP status code is returned or if the returned `health` field is `false` the ntfy service should be considered as unhealthy.
+
+```json
+{"health":true}
+```
+
+See [Installation for Docker](install.md#docker) for an example of how this could be used in a `docker-compose` environment.
+
+## Monitoring
+If configured, ntfy can expose a `/metrics` endpoint for [Prometheus](https://prometheus.io/), which can then be used to
+create dashboards and alerts (e.g. via [Grafana](https://grafana.com/)).
+
+To configure the metrics endpoint, either set `enable-metrics` and/or set the `listen-metrics-http` option to a dedicated
+listen address. Metrics may be considered sensitive information, so before you enable them, be sure you know what you are
+doing, and/or secure access to the endpoint in your reverse proxy.
+
+- `enable-metrics` enables the /metrics endpoint for the default ntfy server (i.e. HTTP, HTTPS and/or Unix socket)
+- `metrics-listen-http` exposes the metrics endpoint via a dedicated `[IP]:port`. If set, this option implicitly
+  enables metrics as well, e.g. "10.0.1.1:9090" or ":9090"
+
+=== "server.yml (Using default port)"
+    ```yaml
+    enable-metrics: true
+    ```
+
+=== "server.yml (Using dedicated IP/port)"
+    ```yaml
+    metrics-listen-http: "10.0.1.1:9090"
+    ```
+
+In Prometheus, an example scrape config would look like this:
+
+=== "prometheus.yml"
+    ```yaml
+    scrape_configs:
+      - job_name: "ntfy"
+        static_configs:
+          - targets: ["10.0.1.1:9090"]
+    ```
+
+Here's an example Grafana dashboard built from the metrics (see [Grafana JSON on GitHub](https://raw.githubusercontent.com/binwiederhier/ntfy/main/examples/grafana-dashboard/ntfy-grafana.json)):
+
+<figure markdown style="padding-left: 50px; padding-right: 50px">
+  <a href="../../static/img/grafana-dashboard.png" target="_blank"><img src="../../static/img/grafana-dashboard.png"/></a>
+  <figcaption>ntfy Grafana dashboard</figcaption>
+</figure>
+
+## Profiling
+ntfy can expose Go's [net/http/pprof](https://pkg.go.dev/net/http/pprof) endpoints to support profiling of the ntfy server. 
+If enabled, ntfy will listen on a dedicated listen IP/port, which can be accessed via the web browser on `http://<ip>:<port>/debug/pprof/`.
+This can be helpful to expose bottlenecks, and visualize call flows. To enable, simply set the `profile-listen-http` config option.
+
 ## Logging & debugging
 By default, ntfy logs to the console (stderr), with an `info` log level, and in a human-readable text format.
 
@@ -1165,10 +1259,15 @@ variable before running the `ntfy` command (e.g. `export NTFY_LISTEN_HTTP=:80`).
 | `smtp-server-listen`                       | `NTFY_SMTP_SERVER_LISTEN`                       | `[ip]:port`                                         | -                 | Defines the IP address and port the SMTP server will listen on, e.g. `:25` or `1.2.3.4:25`                                                                                                                                      |
 | `smtp-server-domain`                       | `NTFY_SMTP_SERVER_DOMAIN`                       | *domain name*                                       | -                 | SMTP server e-mail domain, e.g. `ntfy.sh`                                                                                                                                                                                       |
 | `smtp-server-addr-prefix`                  | `NTFY_SMTP_SERVER_ADDR_PREFIX`                  | *string*                                            | -                 | Optional prefix for the e-mail addresses to prevent spam, e.g. `ntfy-`                                                                                                                                                          |
+| `twilio-account`                           | `NTFY_TWILIO_ACCOUNT`                           | *string*                                            | -                 | Twilio account SID, e.g. AC12345beefbeef67890beefbeef122586                                                                                                                                                                     |
+| `twilio-auth-token`                        | `NTFY_TWILIO_AUTH_TOKEN`                        | *string*                                            | -                 | Twilio auth token, e.g. affebeef258625862586258625862586                                                                                                                                                                        |
+| `twilio-phone-number`                      | `NTFY_TWILIO_PHONE_NUMBER`                      | *string*                                            | -                 | Twilio outgoing phone number, e.g. +18775132586                                                                                                                                                                                 |
+| `twilio-verify-service`                    | `NTFY_TWILIO_VERIFY_SERVICE`                    | *string*                                            | -                 | Twilio Verify service SID, e.g. VA12345beefbeef67890beefbeef122586                                                                                                                                                              |
 | `keepalive-interval`                       | `NTFY_KEEPALIVE_INTERVAL`                       | *duration*                                          | 45s               | Interval in which keepalive messages are sent to the client. This is to prevent intermediaries closing the connection for inactivity. Note that the Android app has a hardcoded timeout at 77s, so it should be less than that. |
 | `manager-interval`                         | `NTFY_MANAGER_INTERVAL`                         | *duration*                                          | 1m                | Interval in which the manager prunes old messages, deletes topics and prints the stats.                                                                                                                                         |
 | `global-topic-limit`                       | `NTFY_GLOBAL_TOPIC_LIMIT`                       | *number*                                            | 15,000            | Rate limiting: Total number of topics before the server rejects new topics.                                                                                                                                                     |
 | `upstream-base-url`                        | `NTFY_UPSTREAM_BASE_URL`                        | *URL*                                               | `https://ntfy.sh` | Forward poll request to an upstream server, this is needed for iOS push notifications for self-hosted servers                                                                                                                   |
+| `upstream-access-token`                    | `NTFY_UPSTREAM_ACCESS_TOKEN`                    | *string*                                            | `tk_zyYLYj...`    | Access token to use for the upstream server; needed only if upstream rate limits are exceeded or upstream server requires auth                                                                                                  |
 | `visitor-attachment-total-size-limit`      | `NTFY_VISITOR_ATTACHMENT_TOTAL_SIZE_LIMIT`      | *size*                                              | 100M              | Rate limiting: Total storage limit used for attachments per visitor, for all attachments combined. Storage is freed after attachments expire. See `attachment-expiry-duration`.                                                 |
 | `visitor-attachment-daily-bandwidth-limit` | `NTFY_VISITOR_ATTACHMENT_DAILY_BANDWIDTH_LIMIT` | *size*                                              | 500M              | Rate limiting: Total daily attachment download/upload traffic limit per visitor. This is to protect your bandwidth costs from exploding.                                                                                        |
 | `visitor-email-limit-burst`                | `NTFY_VISITOR_EMAIL_LIMIT_BURST`                | *number*                                            | 16                | Rate limiting:Initial limit of e-mails per visitor                                                                                                                                                                              |
@@ -1178,12 +1277,14 @@ variable before running the `ntfy` command (e.g. `export NTFY_LISTEN_HTTP=:80`).
 | `visitor-request-limit-replenish`          | `NTFY_VISITOR_REQUEST_LIMIT_REPLENISH`          | *duration*                                          | 5s                | Rate limiting: Strongly related to `visitor-request-limit-burst`: The rate at which the bucket is refilled                                                                                                                      |
 | `visitor-request-limit-exempt-hosts`       | `NTFY_VISITOR_REQUEST_LIMIT_EXEMPT_HOSTS`       | *comma-separated host/IP list*                      | -                 | Rate limiting: List of hostnames and IPs to be exempt from request rate limiting                                                                                                                                                |
 | `visitor-subscription-limit`               | `NTFY_VISITOR_SUBSCRIPTION_LIMIT`               | *number*                                            | 30                | Rate limiting: Number of subscriptions per visitor (IP address)                                                                                                                                                                 |
-| `web-root`                                 | `NTFY_WEB_ROOT`                                 | `app`, `home` or `disable`                          | `app`             | Sets web root to landing page (home), web app (app) or disables the web app entirely (disable)                                                                                                                                  |
+| `visitor-subscriber-rate-limiting`         | `NTFY_VISITOR_SUBSCRIBER_RATE_LIMITING`         | *bool*                                              | `false`           | Rate limiting: Enables subscriber-based rate limiting                                                                                                                                                                           |
+| `web-root`                                 | `NTFY_WEB_ROOT`                                 | *path*, e.g. `/` or `/app`, or `disable`            | `/`               | Sets root of the web app (e.g. /, or /app), or disables it entirely (disable)                                                                                                                                                   |
 | `enable-signup`                            | `NTFY_ENABLE_SIGNUP`                            | *boolean* (`true` or `false`)                       | `false`           | Allows users to sign up via the web app, or API                                                                                                                                                                                 |
 | `enable-login`                             | `NTFY_ENABLE_LOGIN`                             | *boolean* (`true` or `false`)                       | `false`           | Allows users to log in via the web app, or API                                                                                                                                                                                  |
 | `enable-reservations`                      | `NTFY_ENABLE_RESERVATIONS`                      | *boolean* (`true` or `false`)                       | `false`           | Allows users to reserve topics (if their tier allows it)                                                                                                                                                                        |
 | `stripe-secret-key`                        | `NTFY_STRIPE_SECRET_KEY`                        | *string*                                            | -                 | Payments: Key used for the Stripe API communication, this enables payments                                                                                                                                                      |
 | `stripe-webhook-key`                       | `NTFY_STRIPE_WEBHOOK_KEY`                       | *string*                                            | -                 | Payments: Key required to validate the authenticity of incoming webhooks from Stripe                                                                                                                                            |
+| `billing-contact`                          | `NTFY_BILLING_CONTACT`                          | *email address* or *website*                        | -                 | Payments: Email or website displayed in Upgrade dialog as a billing contact                                                                                                                                                     |
 
 The format for a *duration* is: `<number>(smh)`, e.g. 30s, 20m or 1h.   
 The format for a *size* is: `<number>(GMK)`, e.g. 1G, 200M or 4000k.
@@ -1267,6 +1368,7 @@ OPTIONS:
    --behind-proxy, --behind_proxy, -P                                                                                     if set, use X-Forwarded-For header to determine visitor IP address (for rate limiting) (default: false) [$NTFY_BEHIND_PROXY]
    --stripe-secret-key value, --stripe_secret_key value                                                                   key used for the Stripe API communication, this enables payments [$NTFY_STRIPE_SECRET_KEY]
    --stripe-webhook-key value, --stripe_webhook_key value                                                                 key required to validate the authenticity of incoming webhooks from Stripe [$NTFY_STRIPE_WEBHOOK_KEY]
+   --billing-contact value, --billing_contact value                                                                       e-mail or website to display in upgrade dialog (only if payments are enabled) [$NTFY_BILLING_CONTACT]   
    --help, -h                                                                                                             show help (default: false)
 ```
 

docs/examples.md

@@ -16,7 +16,7 @@ I started adding notifications pretty much all of my scripts. Typically, I just
 directly to the command I'm running. The following example will either send <i>Laptop backup succeeded</i>
 or ⚠️ <i>Laptop backup failed</i> directly to my phone:
 
-```
+``` bash
 rsync -a root@laptop /backups/laptop \
   && zfs snapshot ... \
   && curl -H prio:low -d "Laptop backup succeeded" ntfy.sh/backups \
@@ -26,7 +26,7 @@ rsync -a root@laptop /backups/laptop \
 Here's one for the history books. I desperately want the `github.com/ntfy` organization, but all my tickets with
 GitHub have been hopeless. In case it ever becomes available, I want to know immediately.
 
-``` cron
+```
 # Check github/ntfy user
 */6 * * * * if curl -s https://api.github.com/users/ntfy | grep "Not Found"; then curl -d "github.com/ntfy is available" -H "Tags: tada" -H "Prio: high" ntfy.sh/my-alerts; fi
 ```
@@ -136,27 +136,33 @@ You can send a message during a workflow run with curl. Here is an example sendi
 ```
 
 ## Watchtower (shoutrrr)
-You can use [shoutrrr](https://github.com/containrrr/shoutrrr) generic webhook support to send 
+You can use [shoutrrr](https://containrrr.dev/shoutrrr/latest/services/ntfy/) to send 
 [Watchtower](https://github.com/containrrr/watchtower/) notifications to your ntfy topic.
 
 Example docker-compose.yml:
+
 ``` yaml
 services:
   watchtower:
     image: containrrr/watchtower
     environment:
       - WATCHTOWER_NOTIFICATIONS=shoutrrr
-      - WATCHTOWER_NOTIFICATION_URL=generic+https://ntfy.sh/my_watchtower_topic?title=WatchtowerUpdates
+      - WATCHTOWER_NOTIFICATION_URL=ntfy://ntfy.sh/my_watchtower_topic?title=WatchtowerUpdates
 ```
 
 Or, if you only want to send notifications using shoutrrr:
 ```
-shoutrrr send -u "generic+https://ntfy.sh/my_watchtower_topic?title=WatchtowerUpdates" -m "testMessage"
+shoutrrr send -u "ntfy://ntfy.sh/my_watchtower_topic?title=WatchtowerUpdates" -m "testMessage"
 ```
 
 ## Sonarr, Radarr, Lidarr, Readarr, Prowlarr, SABnzbd
-It's possible to use custom scripts for all the *arr services, plus SABnzbd. Notifications for downloads, warnings, grabs etc.
-Some simple bash scripts to achieve this are kindly provided in [nickexyz's repository](https://github.com/nickexyz/ntfy-shellscripts). 
+
+<!-- Sonarr v4 is in beta as of May 2023, should be updated to remove v3 reference when stable -->
+
+Radarr, Prowlarr, and Sonarr v4 support ntfy natively under Settings > Connect.
+
+Sonarr v3, Readarr, and SABnzbd support custom scripts for downloads, warnings, grabs, etc.
+Some simple bash scripts to achieve this are kindly provided in [nickexyz's ntfy-shellscripts repository](https://github.com/nickexyz/ntfy-shellscripts).
 
 ## Node-RED
 You can use the HTTP request node to send messages with [Node-RED](https://nodered.org), some examples:

docs/faq.md

@@ -43,9 +43,9 @@ of the app and [self-host your own ntfy server](install.md).
 ## How much battery does the Android app use?
 If you use the ntfy.sh server, and you don't use the [instant delivery](subscribe/phone.md#instant-delivery) feature, 
 the Android/iOS app uses no additional battery, since Firebase Cloud Messaging (FCM) is used. If you use your own server, 
-or you use *instant delivery* (Android only), the app has to maintain a constant connection to the server, which consumes 
-about 0-1% of battery in 17h of use (on my phone). There has been a ton of testing and improvement around this. I think it's pretty 
-decent now.
+or you use *instant delivery* (Android only),  or install from F-droid ([which does not support FCM](https://f-droid.org/docs/Inclusion_Policy/)),
+the app has to maintain a constant connection to the server, which consumes about 0-1% of battery in 17h of use (on my phone). 
+There has been a ton of testing and improvement around this. I think it's pretty decent now.
 
 ## Paid plans? I thought it was open source?
 All of ntfy will remain open source, with a free software license (Apache 2.0 and GPLv2). If you'd like to self-host, you

docs/hooks.py

@@ -0,0 +1,6 @@
+import os
+import shutil
+
+def copy_fonts(config, **kwargs):
+    site_dir = config['site_dir']
+    shutil.copytree('docs/static/fonts', os.path.join(site_dir, 'get'))

docs/install.md

@@ -20,43 +20,46 @@ To run the ntfy server, then just run `ntfy serve` (or `systemctl start ntfy` wh
 To send messages, use `ntfy publish`. To subscribe to topics, use `ntfy subscribe` (see [subscribing via CLI](subscribe/cli.md)
 for details). 
 
+If you like video tutorials, check out :simple-youtube: [Kris Occhipinti's ntfy install guide](https://www.youtube.com/watch?v=bZzqrX05mNU). 
+It's short and to the point. _I am not affiliated with Kris, I just liked the video._
+
 ## Linux binaries
 Please check out the [releases page](https://github.com/binwiederhier/ntfy/releases) for binaries and
 deb/rpm packages.
 
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_x86_64.tar.gz
-    tar zxvf ntfy_2.1.0_linux_x86_64.tar.gz
-    sudo cp -a ntfy_2.1.0_linux_x86_64/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.1.0_linux_x86_64/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_x86_64.tar.gz
+    tar zxvf ntfy_2.5.0_linux_x86_64.tar.gz
+    sudo cp -a ntfy_2.5.0_linux_x86_64/ntfy /usr/local/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.5.0_linux_x86_64/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "armv6"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv6.tar.gz
-    tar zxvf ntfy_2.1.0_linux_armv6.tar.gz
-    sudo cp -a ntfy_2.1.0_linux_armv6/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.1.0_linux_armv6/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv6.tar.gz
+    tar zxvf ntfy_2.5.0_linux_armv6.tar.gz
+    sudo cp -a ntfy_2.5.0_linux_armv6/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.5.0_linux_armv6/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv7.tar.gz
-    tar zxvf ntfy_2.1.0_linux_armv7.tar.gz
-    sudo cp -a ntfy_2.1.0_linux_armv7/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.1.0_linux_armv7/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv7.tar.gz
+    tar zxvf ntfy_2.5.0_linux_armv7.tar.gz
+    sudo cp -a ntfy_2.5.0_linux_armv7/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.5.0_linux_armv7/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_arm64.tar.gz
-    tar zxvf ntfy_2.1.0_linux_arm64.tar.gz
-    sudo cp -a ntfy_2.1.0_linux_arm64/ntfy /usr/bin/ntfy
-    sudo mkdir /etc/ntfy && sudo cp ntfy_2.1.0_linux_arm64/{client,server}/*.yml /etc/ntfy
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_arm64.tar.gz
+    tar zxvf ntfy_2.5.0_linux_arm64.tar.gz
+    sudo cp -a ntfy_2.5.0_linux_arm64/ntfy /usr/bin/ntfy
+    sudo mkdir /etc/ntfy && sudo cp ntfy_2.5.0_linux_arm64/{client,server}/*.yml /etc/ntfy
     sudo ntfy serve
     ```
 
@@ -106,7 +109,7 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_amd64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_amd64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -114,7 +117,7 @@ Manually installing the .deb file:
 
 === "armv6"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv6.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv6.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -122,7 +125,7 @@ Manually installing the .deb file:
 
 === "armv7/armhf"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv7.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv7.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -130,7 +133,7 @@ Manually installing the .deb file:
 
 === "arm64"
     ```bash
-    wget https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_arm64.deb
+    wget https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_arm64.deb
     sudo dpkg -i ntfy_*.deb
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
@@ -140,28 +143,28 @@ Manually installing the .deb file:
 
 === "x86_64/amd64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_amd64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_amd64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "armv6"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv6.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv6.rpm
     sudo systemctl enable ntfy
     sudo systemctl start ntfy
     ```
 
 === "armv7/armhf"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_armv7.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_armv7.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
 
 === "arm64"
     ```bash
-    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_linux_arm64.rpm
+    sudo rpm -ivh https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_linux_arm64.rpm
     sudo systemctl enable ntfy 
     sudo systemctl start ntfy
     ```
@@ -189,30 +192,36 @@ NixOS also supports [declarative setup of the ntfy server](https://search.nixos.
 
 ## macOS
 The [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) is supported on macOS as well. 
-To install, please [download the tarball](https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_macOS_all.tar.gz), 
+To install, please [download the tarball](https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_macOS_all.tar.gz), 
 extract it and place it somewhere in your `PATH` (e.g. `/usr/local/bin/ntfy`). 
 
 If run as `root`, ntfy will look for its config at `/etc/ntfy/client.yml`. For all other users, it'll look for it at 
 `~/Library/Application Support/ntfy/client.yml` (sample included in the tarball).
 
 ```bash
-curl -L https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_macOS_all.tar.gz > ntfy_2.1.0_macOS_all.tar.gz
-tar zxvf ntfy_2.1.0_macOS_all.tar.gz
-sudo cp -a ntfy_2.1.0_macOS_all/ntfy /usr/local/bin/ntfy
+curl -L https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_macOS_all.tar.gz > ntfy_2.5.0_macOS_all.tar.gz
+tar zxvf ntfy_2.5.0_macOS_all.tar.gz
+sudo cp -a ntfy_2.5.0_macOS_all/ntfy /usr/local/bin/ntfy
 mkdir ~/Library/Application\ Support/ntfy 
-cp ntfy_2.1.0_macOS_all/client/client.yml ~/Library/Application\ Support/ntfy/client.yml
+cp ntfy_2.5.0_macOS_all/client/client.yml ~/Library/Application\ Support/ntfy/client.yml
 ntfy --help
 ```
 
 !!! info
-    There is a [GitHub issue](https://github.com/binwiederhier/ntfy/issues/286) about making ntfy installable via
-    [Homebrew](https://brew.sh/). I'll eventually get to that, but I'd also love if somebody else stepped up to do it. 
-    Also, you can build and run the ntfy server on macOS as well, though I don't officially support that. 
-    Check out the [build instructions](develop.md) for details.
+    Only the ntfy CLI is supported on macOS. ntfy server is currently not supported, but you can build and run it for 
+    development as well. Check out the [build instructions](develop.md) for details.
+
+## Homebrew
+To install the [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) via Homebrew (Linux and macOS),
+simply run:
+```
+brew install ntfy
+```
+
 
 ## Windows
 The [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) is supported on Windows as well.
-To install, please [download the latest ZIP](https://github.com/binwiederhier/ntfy/releases/download/v2.1.0/ntfy_2.1.0_windows_x86_64.zip),
+To install, please [download the latest ZIP](https://github.com/binwiederhier/ntfy/releases/download/v2.5.0/ntfy_2.5.0_windows_x86_64.zip),
 extract it and place the `ntfy.exe` binary somewhere in your `%Path%`. 
 
 The default path for the client config file is at `%AppData%\ntfy\client.yml` (not created automatically, sample in the ZIP file).
@@ -266,7 +275,7 @@ docker run \
   serve
 ```
 
-Using docker-compose with non-root user:
+Using docker-compose with non-root user and healthchecks enabled:
 ```yaml
 version: "2.1"
 
@@ -284,6 +293,12 @@ services:
       - /etc/ntfy:/etc/ntfy
     ports:
       - 80:80
+    healthcheck: # optional: remember to adapt the host:port to your environment
+        test: ["CMD-SHELL", "wget -q --tries=1 http://localhost:80/v1/health -O - | grep -Eo '\"healthy\"\\s*:\\s*true' || exit 1"]
+        interval: 60s
+        timeout: 10s
+        retries: 3
+        start_period: 40s
     restart: unless-stopped
 ```
 

docs/integrations.md

@@ -4,22 +4,6 @@ There are quite a few projects that work with ntfy, integrate ntfy, or have been
 
 I've added a ⭐ to projects or posts that have a significant following, or had a lot of interaction by the community.
 
-## Public ntfy servers
-
-Here's a list of public ntfy servers. As of right now, there is only one official server. The others are provided by the 
-ntfy community. Thanks to everyone running a public server. **You guys rock!**
-
-| URL                                               | Country            |
-|---------------------------------------------------|--------------------|
-| [ntfy.sh](https://ntfy.sh/) (*Official*)          | 🇺🇸 United States |
-| [ntfy.tedomum.net](https://ntfy.tedomum.net/)     | 🇫🇷 France        |
-| [ntfy.jae.fi](https://ntfy.jae.fi/)               | 🇫🇮 Finland       |
-| [ntfy.adminforge.de](https://ntfy.adminforge.de/) | 🇩🇪 Germany       |
-| [ntfy.envs.net](https://ntfy.envs.net)            | 🇩🇪 Germany       |
-
-Please be aware that **server operators can log your messages**. The project also cannot guarantee the reliability
-and uptime of third party servers, so use of each server is **at your own discretion**.
-
 ## Official integrations
 
 - [Healthchecks.io](https://healthchecks.io/) ⭐ - Online service for monitoring regularly running tasks such as cron jobs
@@ -33,11 +17,21 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [Automatisch](https://automatisch.io/) ⭐ - Open source Zapier alternative / workflow automation tool
 - [FlexGet](https://flexget.com/Plugins/Notifiers/ntfysh) ⭐ - Multipurpose automation tool for all of your media
 - [Shoutrrr](https://containrrr.dev/shoutrrr/v0.7/services/ntfy/) ⭐ - Notification library for gophers and their furry friends.
+- [Netdata](https://learn.netdata.cloud/docs/alerts-and-notifications/notifications/agent-alert-notifications/ntfy) ⭐ - Real-time performance monitoring
+- [Deployer](https://github.com/deployphp/deployer) ⭐ - PHP deployment tool
 - [Scrt.link](https://scrt.link/) - Share a secret
 - [Platypush](https://docs.platypush.tech/platypush/plugins/ntfy.html) - Automation platform aimed to run on any device that can run Python
 - [diun](https://crazymax.dev/diun/) - Docker Image Update Notifier
 - [Cloudron](https://www.cloudron.io/store/sh.ntfy.cloudronapp.html) - Platform that makes it easy to manage web apps on your server
 
+## Integration via HTTP/SMTP/etc.
+
+- [Watchtower](https://containrrr.dev/watchtower/) ⭐ - Automating Docker container base image updates (see [integration example](examples.md#watchtower-shoutrrr))
+- [Jellyfin](https://jellyfin.org/) ⭐ - The Free Software Media System (see [integration example](examples.md#))
+- [Overseer](https://docs.overseerr.dev/using-overseerr/notifications/webhooks) ⭐ - a request management and media discovery tool for Plex (see [integration example](examples.md#jellyseerroverseerr-webhook))
+- [Tautulli](https://github.com/Tautulli/Tautulli) ⭐ - Monitoring and tracking tool for Plex (integration [via webhook](https://github.com/Tautulli/Tautulli/wiki/Notification-Agents-Guide#webhook))
+- [Mailrise](https://github.com/YoRyan/mailrise) - An SMTP gateway (integration via [Apprise](https://github.com/caronc/apprise/wiki/Notify_ntfy))
+
 ## [UnifiedPush](https://unifiedpush.org/users/apps/) integrations
 
 - [Element](https://f-droid.org/packages/im.vector.app/) ⭐ - Matrix client
@@ -60,6 +54,7 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [ntfy](https://github.com/jonocarroll/ntfy) - Wraps the ntfy API with pipe-friendly tooling (R)
 - [ntfy-for-delphi](https://github.com/hazzelnuts/ntfy-for-delphi) - A friendly library to push instant notifications ntfy (Delphi)
 - [ntfy](https://github.com/ffflorian/ntfy) - Send notifications over ntfy (JS)
+- [ntfy_dart](https://github.com/jr1221/ntfy_dart) - Dart wrapper around the ntfy API (Dart)
 
 ## CLIs + GUIs
 
@@ -75,6 +70,7 @@ and uptime of third party servers, so use of each server is **at your own discre
 
 - [Grafana-to-ntfy](https://github.com/kittyandrew/grafana-to-ntfy) - Grafana-to-ntfy alerts channel (Rust)
 - [Grafana-ntfy-webhook-integration](https://github.com/academo/grafana-alerting-ntfy-webhook-integration) - Integrates Grafana alerts webhooks (Go)
+- [Grafana-to-ntfy](https://gitlab.com/Saibe1111/grafana-to-ntfy) - Grafana-to-ntfy alerts channel (Node Js)
 - [ntfy-long-zsh-command](https://github.com/robfox92/ntfy-long-zsh-command) - Notifies you once a long-running command completes (zsh)
 - [ntfy-shellscripts](https://github.com/nickexyz/ntfy-shellscripts) - A few scripts for the ntfy project (Shell)
 - [QuickStatus](https://github.com/corneliusroot/QuickStatus) - A shell script to alert to any immediate problems upon login (Shell)
@@ -84,6 +80,7 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [ntfy-server-status](https://github.com/filip2cz/ntfy-server-status) -  Checking if server is online and reporting through ntfy (C)
 - [borg-based backup](https://github.com/davidhi7/backup) - Simple borg-based backup script with notifications based on ntfy.sh or Discord webhooks (Python/Shell)
 - [ntfy.sh *arr script](https://github.com/agent-squirrel/nfty-arr-script) - Quick and hacky script to get sonarr/radarr to notify the ntfy.sh service (Shell)
+- [website-watcher](https://github.com/muety/website-watcher) - A small tool to watch websites for changes (with XPath support) (Python)
 - [siteeagle](https://github.com/tpanum/siteeagle) - A small Python script to monitor websites and notify changes (Python)
 - [send_to_phone](https://github.com/whipped-cream/send_to_phone) - Scripts to upload a file to Transfer.sh and ping ntfy with the download link (Python)
 - [ntfy Discord bot](https://github.com/R0dn3yS/ntfy-bot) - WIP ntfy discord bot (TypeScript)
@@ -107,6 +104,7 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [ntfy_on_a_chip](https://github.com/gergepalfi/ntfy_on_a_chip) - ESP8266 and ESP32 client code to communicate with ntfy
 - [ntfy-sdk](https://github.com/yukibtc/ntfy-sdk) - ntfy client library to send notifications (Rust)
 - [ntfy_ynh](https://github.com/YunoHost-Apps/ntfy_ynh) - ntfy app for YunoHost 
+- [woodpecker-ntfy](https://codeberg.org/l-x/woodpecker-ntfy)- Woodpecker CI plugin for sending ntfy notfication from a pipeline (Go)
 - [drone-ntfy](https://github.com/Clortox/drone-ntfy) - Drone.io plugin for sending ntfy notifications from a pipeline (Shell)
 - [ignition-ntfy-module](https://github.com/Kyvis-Labs/ignition-ntfy-module) - Adds support for sending notifications via a ntfy server to Ignition (Java)
 - [maubot-ntfy](https://gitlab.com/999eagle/maubot-ntfy) - Matrix bot to subscribe to ntfy topics and send messages to Matrix (Python)
@@ -114,9 +112,27 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [nodebb-plugin-ntfy](https://github.com/NodeBB/nodebb-plugin-ntfy) - Push notifications for NodeBB forums
 - [n8n-ntfy](https://github.com/raghavanand98/n8n-ntfy.sh) - n8n community node that lets you use ntfy in your workflows
 - [nlog-ntfy](https://github.com/MichelMichels/nlog-ntfy) - Send NLog messages over ntfy (C# / .NET / NLog)
+- [helm-charts](https://github.com/sarab97/helm-charts) - Helm charts of some of the selfhosted services, incl. ntfy
+- [ntfy_ansible_role](https://github.com/stevenengland/ntfy_ansible_role) (on [Ansible Galaxy](https://galaxy.ansible.com/stevenengland/ntfy)) - Ansible role to install ntfy
+- [easy2ntfy](https://github.com/chromoxdor/easy2ntfy) - Gateway for ESPeasy to receive commands through ntfy and using easyfetch (HTML/JS)
+- [ntfy_lite](https://github.com/MPI-IS/ntfy_lite) - Minimalist python API for pushing ntfy notifications (Python)
+- [notify](https://github.com/guanguans/notify) - 推送通知 (PHP)
+- [zpool-events](https://github.com/maglar0/zpool-events) - Notify on ZFS pool events (Python)
+- [ntfyd](https://github.com/joachimschmidt557/ntfyd) - ntfy desktop daemon (Zig)
+- [ntfy-browser](https://github.com/johman10/ntfy-browser) - browser extension to receive notifications without having the page open (TypeScript)
+- [ntfy-electron](https://github.com/xdpirate/ntfy-electron) - Electron wrapper for the ntfy web app (JS)
 
 ## Blog + forum posts
 
+- [ntfy: des notifications instantanées](https://blogmotion.fr/diy/ntfy-notification-push-domotique-20708) - blogmotion.fr - 5/2023
+- [桌面通知：ntfy](https://www.cnblogs.com/xueweihan/archive/2023/05/04/17370060.html) - cnblogs.com - 5/2023 
+- [ntfy.sh - Open source push notifications via PUT/POST](https://lobste.rs/s/5drapz/ntfy_sh_open_source_push_notifications) - lobste.rs - 5/2023 
+- [Install ntfy Inside Docker Container in Linux](https://lindevs.com/install-ntfy-inside-docker-container-in-linux) - lindevs.com - 4/2023 
+- [ntfy.sh](https://neo-sahara.com/wp/2023/03/25/ntfy-sh/) - neo-sahara.com - 3/2023 
+- [Using Ntfy to send and receive push notifications - Samuel Rosa de Oliveria - Delphicon 2023](https://www.youtube.com/watch?v=feu0skpI9QI) - youtube.com - 3/2023 
+- [ntfy: własny darmowy system powiadomień](https://sprawdzone.it/ntfy-wlasny-darmowy-system-powiadomien/) - sprawdzone.it - 3/2023 
+- [Deploying ntfy on railway](https://www.youtube.com/watch?v=auJICXtxoNA) - youtube.com - 3/2023
+- [Start-Job,Variables, and ntfy.sh](https://klingele.dev/2023/03/01/start-jobvariables-and-ntfy-sh/) - klingele.dev - 3/2023 
 - [enviar notificaciones automáticas usando ntfy.sh](https://osiux.com/2023-02-15-send-automatic-notifications-using-ntfy.html) - osiux.com - 2/2023 
 - [Carnet IP动态解析以及通过ntfy推送IP信息](https://blog.wslll.cn/index.php/archives/201/) - blog.wslll.cn - 2/2023 
 - [Open-Source-Brieftaube: ntfy verschickt Push-Meldungen auf Smartphone und PC](https://www.heise.de/news/Open-Source-Brieftaube-ntfy-verschickt-Push-Meldungen-auf-Smartphone-und-PC-7521583.html) ⭐ - heise.de - 2/2023 
@@ -128,10 +144,12 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [UnifiedPush: a decentralized, open-source push notification protocol](https://f-droid.org/en/2022/12/18/unifiedpush.html) ⭐ - 12/2022
 - [ntfy setup instructions](https://docs.benjamin-altpeter.de/network/vms/1001029-ntfy/) - benjamin-altpeter.de - 12/2022
 - [Ntfy Self-Hosted Push Notifications](https://lachlanlife.net/posts/2022-12-ntfy/) - lachlanlife.net - 12/2022 
+- [NTFY - système de notification hyper simple et complet](https://www.youtube.com/watch?v=UieZYWVVgA4) - youtube.com - 12/2022
 - [ntfy.sh](https://paramdeo.com/til/ntfy-sh) - paramdeo.com - 11/2022
 - [Using ntfy to warn me when my computer is discharging](https://ulysseszh.github.io/programming/2022/11/28/ntfy-warn-discharge.html) - ulysseszh.github.io - 11/2022
 - [ntfy - Push Notification Service](https://dizzytech.de/posts/ntfy/) - dizzytech.de - 11/2022 
 - [Console #132](https://console.substack.com/p/console-132) ⭐ - console.substack.com - 11/2022
+- [How to make my phone buzz*](https://evbogue.com/howtomakemyphonebuzz) - evbogue.com - 11/2022
 - [MeshCentral - Ntfy Push Notifications ](https://www.youtube.com/watch?v=wyE4rtUd4Bg) - youtube.com - 11/2022
 - [Changelog | Tracking layoffs, tech worker demand still high, ntfy, ...](https://changelog.com/news/tracking-layoffs-tech-worker-demand-still-high-ntfy-devenv-markdoc-mike-bifulco-Y1jW) ⭐ - changelog.com - 11/2022
 - [Pointer | Issue #367](https://www.pointer.io/archives/a9495a2a6f/) - pointer.io - 11/2022
@@ -169,3 +187,22 @@ and uptime of third party servers, so use of each server is **at your own discre
 - [ntfy otro sistema de notificaciones pub-sub simple basado en HTTP](https://ugeek.github.io/blog/post/2021-11-05-ntfy-sh-otro-sistema-de-notificaciones-pub-sub-simple-basado-en-http.html) - ugeek.github.io - 11/2021
 - [Show HN: A tool to send push notifications to your phone, written in Go](https://news.ycombinator.com/item?id=29715464) ⭐ - news.ycombinator.com - 12/2021
 - [Reddit selfhostable post](https://www.reddit.com/r/selfhosted/comments/qxlsm9/my_open_source_notification_android_app_and/) ⭐ - reddit.com - 11/2021
+
+
+## Alternative ntfy servers
+
+Here's a list of public ntfy servers. As of right now, there is only one official server. The others are provided by the
+ntfy community. Thanks to everyone running a public server. **You guys rock!**
+
+| URL                                               | Country            |
+|---------------------------------------------------|--------------------|
+| [ntfy.sh](https://ntfy.sh/) (*Official*)          | 🇺🇸 United States |
+| [ntfy.tedomum.net](https://ntfy.tedomum.net/)     | 🇫🇷 France        |
+| [ntfy.jae.fi](https://ntfy.jae.fi/)               | 🇫🇮 Finland       |
+| [ntfy.adminforge.de](https://ntfy.adminforge.de/) | 🇩🇪 Germany       |
+| [ntfy.envs.net](https://ntfy.envs.net)            | 🇩🇪 Germany       |
+| [ntfy.mzte.de](https://ntfy.mzte.de/)             | 🇩🇪 Germany       |
+| [ntfy.hostux.net](https://ntfy.hostux.net/)       | 🇫🇷 France        |
+
+Please be aware that **server operators can log your messages**. The project also cannot guarantee the reliability
+and uptime of third party servers, so use of each server is **at your own discretion**.

docs/known-issues.md

@@ -8,7 +8,7 @@ For some (many?) users, the iOS app is not refreshing the view when new notifica
 swipe down, you do not see the newly arrived messages, even though the popup appeared before.
 
 This is caused by some weirdness between the Notification Service Extension (NSE), SwiftUI and Core Data. I am entirely
-clueless on how to fix it, sadly, as it is ephemeral and now clear to me what is causing it.
+clueless on how to fix it, sadly, as it is ephemeral and not clear to me what is causing it.
 
 Please send experienced iOS developers my way to help me figure this out.
 

docs/publish.md

@@ -38,7 +38,12 @@ Here's an example showing how to publish a simple message using a POST request:
 
 === "PowerShell"
     ``` powershell
-    Invoke-RestMethod -Method 'Post' -Uri https://ntfy.sh/mytopic -Body "Backup successful" -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/mytopic"
+      Body = "Backup successful"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -124,12 +129,17 @@ a [title](#message-title), and [tag messages](#tags-emojis) 🥳 🎉. Here's an
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/phil_alerts"
-    $headers = @{ Title="Unauthorized access detected"
-                  Priority="urgent"
-                  Tags="warning,skull" }
-    $body = "Remote access to phils-laptop detected. Act right away."              
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/phil_alerts"
+      Headers = @{
+        Title = "Unauthorized access detected"
+        Priority = "urgent"
+        Tags = "warning,skull"
+      }
+      Body = "Remote access to phils-laptop detected. Act right away."
+    }             
+    Invoke-RestMethod @Request
     ```
     
 === "Python"
@@ -242,18 +252,21 @@ an [external image attachment](#attach-file-from-a-url) and [email publishing](#
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/mydoorbell"
-    $headers = @{ Click="https://home.nest.com/"
-                  Attach="https://nest.com/view/yAxkasd.jpg"
-                  Actions="http, Open door, https://api.nest.com/open/yAxkasd, clear=true"
-                  Email="phil@example.com" }
-    $body = @'
-    There's someone at the door. 🐶
-       
-    Please check if it's a good boy or a hooman.
-    Doggies have been known to ring the doorbell.
-    '@
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/mydoorbell"
+      Headers = @{
+        Click = "https://home.nest.com"
+        Attach = "https://nest.com/view/yAxksd.jpg"
+        Actions = "http, Open door, https://api.nest.com/open/yAxkasd, clear=true"
+        Email = "phil@example.com"
+      }
+      Body = "There's someone at the door. 🐶`n
+      `n
+      Please check if it's a good boy or a hooman.`n
+      Doggies have been known to ring the doorbell.`n"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -342,10 +355,15 @@ you can set the `X-Title` header (or any of its aliases: `Title`, `ti`, or `t`).
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/controversial"
-    $headers = @{ Title="Dogs are better than cats" }
-    $body = "Oh my ..."
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/controversial"
+      Headers = @{
+        Title = "Dogs are better than cats"
+      }
+      Body = "Oh my ..."
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -373,6 +391,12 @@ you can set the `X-Title` header (or any of its aliases: `Title`, `ti`, or `t`).
   <figcaption>Detail view of notification with title</figcaption>
 </figure>
 
+!!! info
+    ntfy supports UTF-8 in HTTP headers, but [not every library or programming language does](https://www.jmix.io/blog/utf-8-in-http-headers/).
+    If non-ASCII characters are causing issues for you in the title (i.e. you're seeing `?` symbols), you may also encode any header (including the title)
+    as [RFC 2047](https://datatracker.ietf.org/doc/html/rfc2047#section-2), e.g. `=?UTF-8?B?8J+HqfCfh6o=?=` ([base64](https://en.wikipedia.org/wiki/Base64)),
+    or `=?UTF-8?Q?=C3=84pfel?=` ([quoted-printable](https://en.wikipedia.org/wiki/Quoted-printable)).
+
 ## Message priority
 _Supported on:_ :material-android: :material-apple: :material-firefox:
 
@@ -432,10 +456,14 @@ You can set the priority with the header `X-Priority` (or any of its aliases: `P
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/phil_alerts"
-    $headers = @{ Priority="5" }
-    $body = "An urgent message"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      URI = "https://ntfy.sh/phil_alerts"
+      Headers = @{
+        Priority = "5"
+      }
+      Body = "An urgent message"
+    }
+    Invoke-RestMethod @Request
     ```
     
 === "Python"
@@ -553,10 +581,15 @@ them with a comma, e.g. `tag1,tag2,tag3`.
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/backups"
-    $headers = @{ Tags="warning,mailsrv13,daily-backup" }
-    $body = "Backup of mailsrv13 failed"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/backups"
+      Headers = @{
+        Tags = "warning,mailsrv13,daily-backup"
+      }
+      Body = "Backup of mailsrv13 failed"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -584,6 +617,12 @@ them with a comma, e.g. `tag1,tag2,tag3`.
   <figcaption>Detail view of notifications with tags</figcaption>
 </figure>
 
+!!! info
+    ntfy supports UTF-8 in HTTP headers, but [not every library or programming language does](https://www.jmix.io/blog/utf-8-in-http-headers/).
+    If non-ASCII characters are causing issues for you in the title (i.e. you're seeing `?` symbols), you may also encode the tags header or individual tags
+    as [RFC 2047](https://datatracker.ietf.org/doc/html/rfc2047#section-2), e.g. `tag1,=?UTF-8?B?8J+HqfCfh6o=?=` ([base64](https://en.wikipedia.org/wiki/Base64)),
+    or `=?UTF-8?Q?=C3=84pfel?=,tag2` ([quoted-printable](https://en.wikipedia.org/wiki/Quoted-printable)).
+
 ## Scheduled delivery
 _Supported on:_ :material-android: :material-apple: :material-firefox:
 
@@ -645,10 +684,15 @@ to be delivered in 3 days, it'll remain in the cache for 3 days and 12 hours. Al
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/hello"
-    $headers = @{ At="tomorrow, 10am" }
-    $body = "Good morning"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/hello"
+      Headers = @{
+        At = "tomorrow, 10am"
+      }
+      Body = "Good morning"
+    }
+    Invoke-RestMethod @Request
     ```
     
 === "Python"
@@ -729,7 +773,7 @@ For instance, assuming your topic is `mywebhook`, you can simply call `/mywebhoo
 
 === "PowerShell"
     ``` powershell
-    Invoke-RestMethod -Method 'Get' -Uri "ntfy.sh/mywebhook/trigger"
+    Invoke-RestMethod "ntfy.sh/mywebhook/trigger"
     ```    
 
 === "Python"
@@ -778,7 +822,7 @@ Here's an example with a custom message, tags and a priority:
 
 === "PowerShell"
     ``` powershell
-    Invoke-RestMethod -Method 'Get' -Uri "ntfy.sh/mywebhook/publish?message=Webhook+triggered&priority=high&tags=warning,skull"
+    Invoke-RestMethod "ntfy.sh/mywebhook/publish?message=Webhook+triggered&priority=high&tags=warning,skull"
     ```
 
 === "Python"
@@ -883,25 +927,29 @@ is the only required one:
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh"
-    $body = @{
-        topic    = "mytopic"
-        title    = "Low disk space alert"
-        message  = "Disk space is low at 5.1 GB"
-        priority = 4
-        attach   = "https://filesrv.lan/space.jpg"
-        filename = "diskspace.jpg"
-        tags     = @("warning", "cd")
-        click    = "https://homecamera.lan/xasds1h2xsSsa/"
-        actions  = @(
-            @{ 
-                action = "view"
-                label  = "Admin panel"
-                url    = "https://filesrv.lan/admin"
-            }
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh"
+      Body = @{
+        Topic    = "mytopic"
+        Title    = "Low disk space alert"
+        Message  = "Disk space is low at 5.1 GB"
+        Priority = 4
+        Attach   = "https://filesrv.lan/space.jpg"
+        FileName = "diskspace.jpg"
+        Tags     = @("warning", "cd")
+        Click    = "https://homecamera.lan/xasds1h2xsSsa/"
+        Actions  = ConvertTo-JSON @(
+          @{ 
+            Action = "view"
+            Label  = "Admin panel"
+            URL    = "https://filesrv.lan/admin"
+          }
         )
-    } | ConvertTo-Json
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -ContentType "application/json" -UseBasicParsing
+      }
+      ContentType = "application/json"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -956,9 +1004,11 @@ all the supported fields:
 | `actions`  | -        | *JSON array*                     | *(see [action buttons](#action-buttons))* | Custom [user action buttons](#action-buttons) for notifications       |
 | `click`    | -        | *URL*                            | `https://example.com`                     | Website opened when notification is [clicked](#click-action)          |
 | `attach`   | -        | *URL*                            | `https://example.com/file.jpg`            | URL of an attachment, see [attach via URL](#attach-file-from-url)     |
+| `icon`     | -        | *string*                         | `https://example.com/icon.png`            | URL to use as notification [icon](#icons)                             |
 | `filename` | -        | *string*                         | `file.jpg`                                | File name of the attachment                                           |
 | `delay`    | -        | *string*                         | `30min`, `9am`                            | Timestamp or duration for delayed delivery                            |
 | `email`    | -        | *e-mail address*                 | `phil@example.com`                        | E-mail address for e-mail notifications                               |
+| `call`     | -        | *phone number or 'yes'*          | `+1222334444` or `yes`                    | Phone number to use for [voice call](#phone-calls)                    |
 
 ## Action buttons
 _Supported on:_ :material-android: :material-apple: :material-firefox:
@@ -1061,10 +1111,15 @@ As an example, here's how you can create the above notification using this forma
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/myhome"
-    $headers = @{ Actions="view, Open portal, https://home.nest.com/, clear=true; http, Turn down, https://api.nest.com/, body='{\"temperature\": 65}'" }
-    $body = "You left the house. Turn down the A/C?"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/myhome"
+      Headers = @{
+        Actions="view, Open portal, https://home.nest.com/, clear=true; http, Turn down, https://api.nest.com/, body='{\"temperature\": 65}'"
+      }
+      Body = "You left the house. Turn down the A/C?"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1086,7 +1141,13 @@ As an example, here's how you can create the above notification using this forma
         ]
     ]));
     ```
- 
+
+!!! info
+    ntfy supports UTF-8 in HTTP headers, but [not every library or programming language does](https://www.jmix.io/blog/utf-8-in-http-headers/).
+    If non-ASCII characters are causing issues for you in the title (i.e. you're seeing `?` symbols), you may also encode any header (including actions) 
+    as [RFC 2047](https://datatracker.ietf.org/doc/html/rfc2047#section-2), e.g. `=?UTF-8?B?8J+HqfCfh6o=?=` ([base64](https://en.wikipedia.org/wiki/Base64)),
+    or `=?UTF-8?Q?=C3=84pfel?=` ([quoted-printable](https://en.wikipedia.org/wiki/Quoted-printable)).
+
 #### Using a JSON array
 Alternatively, the same actions can be defined as **JSON array**, if the notification is defined as part of the JSON body 
 (see [publish as JSON](#publish-as-json)):
@@ -1214,26 +1275,30 @@ Alternatively, the same actions can be defined as **JSON array**, if the notific
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh"
-    $body = @{
-        topic   = "myhome"
-        message = "You left the house. Turn down the A/C?"
-        actions = @(
-            @{
-                action = "view"
-                label  = "Open portal"
-                url    = "https://home.nest.com/"
-                clear  = $true
-            },
-            @{
-                action = "http"
-                label  = "Turn down"
-                url    = "https://api.nest.com/"
-                body   = '{"temperature": 65}'
-            }
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh"
+      Body = ConvertTo-JSON @{
+        Topic   = "myhome"
+        Message = "You left the house. Turn down the A/C?"
+        Actions = @(
+          @{
+            Action = "view"
+            Label  = "Open portal"
+            URL    = "https://home.nest.com/"
+            Clear  = $true
+          },
+          @{
+            Action = "http"
+            Label  = "Turn down"
+            URL    = "https://api.nest.com/"
+            Body   = '{"temperature": 65}'
+          }
         )
-    } | ConvertTo-Json
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -ContentType "application/json" -UseBasicParsing
+      }
+      ContentType = "application/json"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1358,10 +1423,15 @@ Here's an example using the [`X-Actions` header](#using-a-header):
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/myhome"
-    $headers = @{ Actions="view, Open Twitter, https://twitter.com/binwiederhier/status/1467633927951163392" }
-    $body = "Somebody retweeted your tweet."
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/myhome"
+      Headers = @{
+        Actions = "view, Open Twitter, https://twitter.com/binwiederhier/status/1467633927951163392"
+      }
+      Body = "Somebody retweeted your tweet."
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1474,19 +1544,23 @@ And the same example using [JSON publishing](#publish-as-json):
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh"
-    $body = @{
-        topic = "myhome"
-        message = "Somebody retweeted your tweet."
-        actions = @(
-            @{
-                "action"="view"
-                "label"="Open Twitter"
-                "url"="https://twitter.com/binwiederhier/status/1467633927951163392"
-            }
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh"
+      Body = ConvertTo-JSON @{
+        Topic = "myhome"
+        Message = "Somebody retweeted your tweet."
+        Actions = @(
+          @{
+            Action = "view"
+            Label  = "Open Twitter"
+            URL    = "https://twitter.com/binwiederhier/status/1467633927951163392"
+          }
         )
-    } | ConvertTo-Json
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -ContentType "application/json" -UseBasicParsing
+      }
+      ContentType = "application/json"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1600,10 +1674,15 @@ Here's an example using the [`X-Actions` header](#using-a-header):
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/wifey"
-    $headers = @{ Actions="broadcast, Take picture, extras.cmd=pic, extras.camera=front" }
-    $body = "Your wife requested you send a picture of yourself."
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/wifey"
+      Headers = @{
+        Actions = "broadcast, Take picture, extras.cmd=pic, extras.camera=front"
+      }
+      Body = "Your wife requested you send a picture of yourself."
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1733,23 +1812,26 @@ And the same example using [JSON publishing](#publish-as-json):
     ``` powershell
     # Powershell requires the 'Depth' argument to equal 3 here to expand 'Extras',
     # otherwise it will read System.Collections.Hashtable in the returned JSON
-
-    $uri = "https://ntfy.sh"
-    $body = @{
-        topic = "wifey"
-        message = "Your wife requested you send a picture of yourself."
-        actions = @(
-            @{
-                action = "broadcast"
-                label = "Take picture"
-                extras = @{
-                     cmd ="pic"
-                     camera = "front"
-                }
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh"
+      Body = @{
+        Topic = "wifey"
+        Message = "Your wife requested you send a picture of yourself."
+        Actions = ConvertTo-Json -Depth 3 @(
+          @{
+            Action = "broadcast"
+            Label = "Take picture"
+            Extras = @{
+              CMD ="pic"
+              Camera = "front"
             }
+          }
         )
-    } | ConvertTo-Json -Depth 3
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -ContentType "application/json" -UseBasicParsing
+      }
+      ContentType = "application/json"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -1861,10 +1943,15 @@ Here's an example using the [`X-Actions` header](#using-a-header):
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/myhome"
-    $headers = @{ Actions="http, Close door, https://api.mygarage.lan/, method=PUT, headers.Authorization=Bearer zAzsx1sk.., body={\"action\": \"close\"}" }
-    $body = "Garage door has been open for 15 minutes. Close it?"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/myhome"
+      Headers = @{
+        Actions="http, Close door, https://api.mygarage.lan/, method=PUT, headers.Authorization=Bearer zAzsx1sk.., body={\"action\": \"close\"}"
+      }
+      Body = "Garage door has been open for 15 minutes. Close it?"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2005,24 +2092,28 @@ And the same example using [JSON publishing](#publish-as-json):
     # Powershell requires the 'Depth' argument to equal 3 here to expand 'headers', 
     # otherwise it will read System.Collections.Hashtable in the returned JSON
 
-    $uri = "https://ntfy.sh"
-    $body = @{
-        topic   = "myhome"
-        message = "Garage door has been open for 15 minutes. Close it?"
-        actions = @(
-            @{
-                action  = "http"
-                label   = "Close door"
-                url     = "https://api.mygarage.lan/"
-                method  = "PUT"
-                headers = @{
-                    Authorization = "Bearer zAzsx1sk.."
-                }
-                body    = '{"action": "close"}'
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh"
+      Body = @{
+        Topic   = "myhome"
+        Message = "Garage door has been open for 15 minutes. Close it?"
+        Actions = ConvertTo-Json -Depth 3 @(
+          @{
+            Action  = "http"
+            Label   = "Close door"
+            URL     = "https://api.mygarage.lan/"
+            Method  = "PUT"
+            Headers = @{
+              Authorization = "Bearer zAzsx1sk.."
             }
+            Body    = ConvertTo-JSON @{Action = "close"}
+          }
         )
-    } | ConvertTo-Json -Depth 3
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -ContentType "application/json" -UseBasicParsing
+      }
+      ContentType = "application/json"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2149,10 +2240,13 @@ Here's an example that will open Reddit when the notification is clicked:
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/reddit_alerts"
-    $headers = @{ Click="https://www.reddit.com/message/messages" }
-    $body = "New messages on Reddit"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/reddit_alerts"
+      Headers = @{ Click="https://www.reddit.com/message/messages" }
+      Body = "New messages on Reddit"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2321,9 +2415,12 @@ Here's an example showing how to attach an APK file:
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/mydownloads"
-    $headers = @{ Attach="https://f-droid.org/F-Droid.apk" }
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/mydownloads"
+      Headers = @{ Attach="https://f-droid.org/F-Droid.apk" }
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2414,12 +2511,17 @@ Here's an example showing how to include an icon:
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/tvshows"
-    $headers = @{ Title"="Kodi: Resuming Playback"
-                  Tags="arrow_forward"
-                  Icon="https://styles.redditmedia.com/t5_32uhe/styles/communityIcon_xnt6chtnr2j21.png" }
-    $body = "The Wire, S01E01"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Headers $headers -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/tvshows"
+      Headers = @{
+        Title = "Kodi: Resuming Playback"
+        Tags = "arrow_forward"
+        Icon = "https://styles.redditmedia.com/t5_32uhe/styles/communityIcon_xnt6chtnr2j21.png"
+      }
+      Body = "The Wire, S01E01"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2525,13 +2627,18 @@ that, your IP address appears in the e-mail body. This is to prevent abuse.
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/alerts"
-    $headers = @{ Title"="Low disk space alert"
-                  Priority="high"
-                  Tags="warning,skull,backup-host,ssh-login")
-                  Email="phil@example.com" }
-    $body = "Unknown login from 5.31.23.83 to backups.example.com"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/alerts"
+      Headers = @{
+        Title = "Low disk space alert"
+        Priority = "high"
+        Tags = "warning,skull,backup-host,ssh-login")
+        Email = "phil@example.com"
+      }
+      Body = "Unknown login from 5.31.23.83 to backups.example.com"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2596,6 +2703,133 @@ title `You've Got Mail` to topic `sometopic` (see [ntfy.sh/sometopic](https://nt
   <figcaption>Publishing a message via e-mail</figcaption>
 </figure>
 
+## Phone calls
+_Supported on:_ :material-android: :material-apple: :material-firefox:
+
+You can use ntfy to call a phone and **read the message out loud using text-to-speech**. 
+Similar to email notifications, this can be useful to blast-notify yourself on all possible channels, or to notify people that do not have 
+the ntfy app installed on their phone.
+
+**Phone numbers have to be previously verified** (via the [web app](https://ntfy.sh/account)), so this feature is 
+**only available to authenticated users** (no anonymous phone calls). To forward a message as a voice call, pass a phone
+number in the `X-Call` header (or its alias: `Call`), prefixed with a plus sign and the country code, e.g. `+12223334444`. 
+You may also simply pass `yes` as a value to pick the first of your verified phone numbers. 
+On ntfy.sh, this feature is only supported to [ntfy Pro](https://ntfy.sh/app) plans.
+
+<figure markdown>
+  ![phone number verification](static/img/web-phone-verify.png)
+  <figcaption>Phone number verification in the <a href="https://ntfy.sh/account">web app</a></figcaption>
+</figure>
+
+As of today, the text-to-speed voice used will only support English. If there is demand for other languages, we'll
+be happy to add support for that. Please [open an issue on GitHub](https://github.com/binwiederhier/ntfy/issues).
+
+!!! info
+    You are responsible for the message content, and **you must abide by the [Twilio Acceptable Use Policy](https://www.twilio.com/en-us/legal/aup)**.
+    This particularly means that you must not use this feature to send unsolicited messages, or messages that are illegal or
+    violate the rights of others. Please read the policy for details. Failure to do so may result in your account being suspended or terminated.
+
+Here's how you use it:
+
+=== "Command line (curl)"
+    ```
+    curl \
+        -u :tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2 \
+        -H "Call: +12223334444" \
+        -d "Your garage seems to be on fire. You should probably check that out." \
+        ntfy.sh/alerts
+    ```
+
+=== "ntfy CLI"
+    ```
+    ntfy publish \
+        --token=tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2 \
+        --call=+12223334444 \
+        alerts "Your garage seems to be on fire. You should probably check that out."
+    ```
+
+=== "HTTP"
+    ``` http
+    POST /alerts HTTP/1.1
+    Host: ntfy.sh
+    Authorization: Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2
+    Call: +12223334444
+
+    Your garage seems to be on fire. You should probably check that out.
+    ```
+
+=== "JavaScript"
+    ``` javascript
+    fetch('https://ntfy.sh/alerts', {
+        method: 'POST',
+        body: "Your garage seems to be on fire. You should probably check that out.",
+        headers: { 
+            'Authorization': 'Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2',
+            'Call': '+12223334444'
+        }
+    })
+    ```
+
+=== "Go"
+    ``` go
+    req, _ := http.NewRequest("POST", "https://ntfy.sh/alerts", 
+        strings.NewReader("Your garage seems to be on fire. You should probably check that out."))
+    req.Header.Set("Call", "+12223334444")
+    req.Header.Set("Authorization", "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2")
+    http.DefaultClient.Do(req)
+    ```
+
+=== "PowerShell"
+    ``` powershell
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/alerts"
+      Headers = @{
+        Authorization = "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2"
+        Call = "+12223334444"
+      }
+      Body = "Your garage seems to be on fire. You should probably check that out."
+    }
+    Invoke-RestMethod @Request
+    ```
+
+=== "Python"
+    ``` python
+    requests.post("https://ntfy.sh/alerts",
+        data="Your garage seems to be on fire. You should probably check that out.",
+        headers={ 
+            "Authorization": "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2",
+            "Call": "+12223334444"
+        })
+    ```
+
+=== "PHP"
+    ``` php-inline
+    file_get_contents('https://ntfy.sh/alerts', false, stream_context_create([
+        'http' => [
+            'method' => 'POST',
+            'header' =>
+                "Content-Type: text/plain\r\n" .
+                "Authorization: Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2\r\n" .
+                "Call: +12223334444",
+            'content' => 'Your garage seems to be on fire. You should probably check that out.'
+        ]
+    ]));
+    ```
+
+Here's what a phone call from ntfy sounds like:
+
+<audio controls>
+    <source src="../static/audio/ntfy-phone-call.mp3" type="audio/mpeg">
+    <source src="../static/audio/ntfy-phone-call.ogg" type="audio/ogg">
+</audio>
+
+Audio transcript:
+
+> You have a notification from ntfy on topic alerts.        
+> Message: Your garage seems to be on fire. You should probably check that out. End message.   
+> This message was sent by user phil. It will be repeated up to three times.
+
 ## Authentication
 Depending on whether the server is configured to support [access control](config.md#access-control), some topics
 may be read/write protected so that only users with the correct credentials can subscribe or publish to them.
@@ -2609,7 +2843,7 @@ To publish/subscribe to protected topics, you can:
     When using Basic auth, base64 only encodes username and password. It **is not encrypting it**. For your 
     self-hosted server, **be sure to use HTTPS to avoid eavesdropping** and exposing your password. 
 
-### Username & password
+### Username + password
 The simplest way to authenticate against a ntfy server is to use [Basic auth](https://en.wikipedia.org/wiki/Basic_access_authentication).
 Here's an example with a user `testuser` and password `fakepassword`:
 
@@ -2657,14 +2891,37 @@ Here's an example with a user `testuser` and password `fakepassword`:
     http.DefaultClient.Do(req)
     ```
 
-=== "PowerShell"
+=== "PowerShell 7+"
     ``` powershell
-    $uri = "https://ntfy.example.com/mysecrets"
-    $credentials = 'testuser:fakepassword'
-    $encodedCredentials = [convert]::ToBase64String([text.Encoding]::UTF8.GetBytes($credentials))
-    $headers = @{Authorization="Basic $encodedCredentials"}
-    $message = "Look ma, with auth"
-    Invoke-RestMethod -Uri $uri -Body $message -Headers $headers -Method "Post" -UseBasicParsing
+    # Get the credentials from the user
+    $Credential = Get-Credential testuser
+
+    # Alternatively, create a PSCredential object with the password from scratch
+    $Credential = [PSCredential]::new("testuser", (ConvertTo-SecureString "password" -AsPlainText -Force))
+    
+    # Note that the Authentication parameter requires PowerShell 7 or later
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets"
+      Authentication = "Basic"
+      Credential = $Credential
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
+    ```
+
+=== "PowerShell 5 and earlier"
+    ``` powershell
+    # With PowerShell 5 or earlier, we need to create the base64 username:password string ourselves
+    $CredentialString = "$($Credential.Username):$($Credential.GetNetworkCredential().Password)"
+    $EncodedCredential = [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($CredentialString))
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets"
+      Headers = @{ Authorization = "Basic $EncodedCredential"}
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2761,12 +3018,29 @@ with the token `tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2`:
     http.DefaultClient.Do(req)
     ```
 
-=== "PowerShell"
+=== "PowerShell 7+"
     ``` powershell
-    $uri = "https://ntfy.example.com/mysecrets"
-    $headers = @{Authorization="Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2"}
-    $message = "Look ma, with auth"
-    Invoke-RestMethod -Uri $uri -Body $message -Headers $headers -Method "Post" -UseBasicParsing
+    # With PowerShell 7 or greater, we can use the Authentication and Token parameters
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets"
+      Authorization = "Bearer"
+      Token = "tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2"
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
+    ```
+
+=== "PowerShell 5 and earlier"
+    ``` powershell
+    # In PowerShell 5 and below, we can only send the Bearer token as a string in the Headers
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets"
+      Headers = @{ Authorization = "Bearer tk_AgQdq7mVBoFD37zQVN29RhuMzNIz2" }
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2841,10 +3115,16 @@ access token. This is primarily useful to make `curl` calls easier, e.g. `curl -
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.example.com/mysecrets"
-    $headers = @{Authorization="Basic OnRrX0FnUWRxN21WQm9GRDM3elFWTjI5Umh1TXpOSXoy"}
-    $message = "Look ma, with auth"
-    Invoke-RestMethod -Uri $uri -Body $message -Headers $headers -Method "Post" -UseBasicParsing
+    # Note that PSCredentials *must* have a username, so we fall back to placing the authorization in the Headers as with PowerShell 5
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets"
+      Headers = @{
+        Authorization = "Basic OnRrX0FnUWRxN21WQm9GRDM3elFWTjI5Umh1TXpOSXoy"
+      }
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2913,9 +3193,12 @@ Here's an example using the `auth` query parameter:
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.example.com/mysecrets?auth=QmFzaWMgZEdWemRIVnpaWEk2Wm1GclpYQmhjM04zYjNKaw"
-    $message = "Look ma, with auth"
-    Invoke-RestMethod -Uri $uri -Body $message  -Method "Post" -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.example.com/mysecrets?auth=QmFzaWMgZEdWemRIVnpaWEk2Wm1GclpYQmhjM04zYjNKaw"
+      Body = "Look ma, with auth"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -2955,6 +3238,12 @@ The following command will generate the appropriate value for you on *nix system
 echo -n "Basic `echo -n 'testuser:fakepassword' | base64`" | base64 | tr -d '='
 ```
 
+For access tokens, you can use this instead:
+
+```
+echo -n "Bearer faketoken" | base64 | tr -d '='
+```
+
 ## Advanced features
 
 ### Message caching
@@ -3012,10 +3301,13 @@ are still delivered to connected subscribers, but [`since=`](subscribe/api.md#fe
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/mytopic"
-    $headers = @{ Cache="no" }
-    $body = "This message won't be stored server-side"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -Headers $headers -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/mytopic"
+      Headers = @{ Cache="no" }
+      Body = "This message won't be stored server-side"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -3092,10 +3384,13 @@ to `no`. This will instruct the server not to forward messages to Firebase.
 
 === "PowerShell"
     ``` powershell
-    $uri = "https://ntfy.sh/mytopic"
-    $headers = @{ Firebase="no" }
-    $body = "This message won't be forwarded to FCM"
-    Invoke-RestMethod -Method 'Post' -Uri $uri -Body $body -Headers $headers -UseBasicParsing
+    $Request = @{
+      Method = "POST"
+      URI = "https://ntfy.sh/mytopic"
+      Headers = @{ Firebase="no" }
+      Body = "This message won't be forwarded to FCM"
+    }
+    Invoke-RestMethod @Request
     ```
 
 === "Python"
@@ -3161,22 +3456,34 @@ There are a few limitations to the API to prevent abuse and to keep the server h
 are configurable via the server side [rate limiting settings](config.md#rate-limiting). Most of these limits you won't run into,
 but just in case, let's list them all:
 
-| Limit                      | Description                                                                                                                                                              |
-|----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **Message length**         | Each message can be up to 4,096 bytes long. Longer messages are treated as [attachments](#attachments).                                                                  |
-| **Requests**               | By default, the server is configured to allow 60 requests per visitor at once, and then refills the your allowed requests bucket at a rate of one request per 5 seconds. |
-| **E-mails**                | By default, the server is configured to allow sending 16 e-mails per visitor at once, and then refills the your allowed e-mail bucket at a rate of one per hour.         |
-| **Subscription limit**     | By default, the server allows each visitor to keep 30 connections to the server open.                                                                                    |
-| **Attachment size limit**  | By default, the server allows attachments up to 15 MB in size, up to 100 MB in total per visitor and up to 5 GB across all visitors.                                     |
-| **Attachment expiry**      | By default, the server deletes attachments after 3 hours and thereby frees up space from the total visitor attachment limit.                                             |
-| **Attachment bandwidth**   | By default, the server allows 500 MB of GET/PUT/POST traffic for attachments per visitor in a 24 hour period. Traffic exceeding that is rejected.                        |
-| **Total number of topics** | By default, the server is configured to allow 15,000 topics. The ntfy.sh server has higher limits though.                                                                |
+| Limit                      | Description                                                                                                                                                                                                             |
+|----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **Message length**         | Each message can be up to 4,096 bytes long. Longer messages are treated as [attachments](#attachments).                                                                                                                 |
+| **Requests**               | By default, the server is configured to allow 60 requests per visitor at once, and then refills the your allowed requests bucket at a rate of one request per 5 seconds.                                                |
+| **Daily messages**         | By default, the number of messages is governed by the request limits. This can be overridden. On ntfy.sh, the daily message limit is 250.                                                                               |
+| **E-mails**                | By default, the server is configured to allow sending 16 e-mails per visitor at once, and then refills the your allowed e-mail bucket at a rate of one per hour. On ntfy.sh, the daily limit is 5.                      |
+| **Phone calls**            | By default, the server does not allow any phone calls, except for users with a tier that has a call limit.                                                                                                              |
+| **Subscription limit**     | By default, the server allows each visitor to keep 30 connections to the server open.                                                                                                                                   |
+| **Attachment size limit**  | By default, the server allows attachments up to 15 MB in size, up to 100 MB in total per visitor and up to 5 GB across all visitors. On ntfy.sh, the attachment size limit is 2 MB, and the per-visitor total is 20 MB. |
+| **Attachment expiry**      | By default, the server deletes attachments after 3 hours and thereby frees up space from the total visitor attachment limit.                                                                                            |
+| **Attachment bandwidth**   | By default, the server allows 500 MB of GET/PUT/POST traffic for attachments per visitor in a 24 hour period. Traffic exceeding that is rejected. On ntfy.sh, the daily bandwidth limit is 200 MB.                      |
+| **Total number of topics** | By default, the server is configured to allow 15,000 topics. The ntfy.sh server has higher limits though.                                                                                                               |
+
+These limits can be changed on a per-user basis using [tiers](config.md#tiers). If [payments](config.md#payments) are enabled, a user tier can be changed by purchasing
+a higher tier. ntfy.sh offers multiple paid tiers, which allows for much hier limits than the ones listed above. 
 
 ## List of all parameters
-The following is a list of all parameters that can be passed when publishing a message. Parameter names are **case-insensitive**,
-and can be passed as **HTTP headers** or **query parameters in the URL**. They are listed in the table in their canonical form.
+The following is a list of all parameters that can be passed when publishing a message. Parameter names are **case-insensitive**
+when used in **HTTP headers**, and must be **lowercase** when used as **query parameters in the URL**. They are listed in the 
+table in their canonical form.
 
-| Parameter       | Aliases (case-insensitive)                 | Description                                                                                   |
+!!! info
+    ntfy supports UTF-8 in HTTP headers, but [not every library or programming language does](https://www.jmix.io/blog/utf-8-in-http-headers/).
+    If non-ASCII characters are causing issues for you in the title (i.e. you're seeing `?` symbols), you may also encode any
+    header as [RFC 2047](https://datatracker.ietf.org/doc/html/rfc2047#section-2), e.g. `=?UTF-8?B?8J+HqfCfh6o=?=` ([base64](https://en.wikipedia.org/wiki/Base64)),
+    or `=?UTF-8?Q?=C3=84pfel?=` ([quoted-printable](https://en.wikipedia.org/wiki/Quoted-printable)).
+
+| Parameter       | Aliases                                    | Description                                                                                   |
 |-----------------|--------------------------------------------|-----------------------------------------------------------------------------------------------|
 | `X-Message`     | `Message`, `m`                             | Main body of the message as shown in the notification                                         |
 | `X-Title`       | `Title`, `t`                               | [Message title](#message-title)                                                               |
@@ -3189,6 +3496,7 @@ and can be passed as **HTTP headers** or **query parameters in the URL**. They a
 | `X-Icon`        | `Icon`                                     | URL to use as notification [icon](#icons)                                                     |
 | `X-Filename`    | `Filename`, `file`, `f`                    | Optional [attachment](#attachments) filename, as it appears in the client                     |
 | `X-Email`       | `X-E-Mail`, `Email`, `E-Mail`, `mail`, `e` | E-mail address for [e-mail notifications](#e-mail-notifications)                              |
+| `X-Call`        | `Call`                                     | Phone number for [phone calls](#phone-calls)                                                  |
 | `X-Cache`       | `Cache`                                    | Allows disabling [message caching](#message-caching)                                          |
 | `X-Firebase`    | `Firebase`                                 | Allows disabling [sending to Firebase](#disable-firebase)                                     |
 | `X-UnifiedPush` | `UnifiedPush`, `up`                        | [UnifiedPush](#unifiedpush) publish option, only to be used by UnifiedPush apps               |

docs/releases.md

@@ -2,6 +2,168 @@
 Binaries for all releases can be found on the GitHub releases pages for the [ntfy server](https://github.com/binwiederhier/ntfy/releases)
 and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/releases).
 
+## ntfy server v2.5.0
+Released May 18, 2023
+
+This release brings a number of new features, including support for text-to-speech style [phone calls](publish.md#phone-calls), 
+an admin API to manage users and ACL (currently in beta, and hence undocumented), and support for authorized access to 
+upstream servers via the `upstream-access-token` config option.
+
+❤️ If you like ntfy, **please consider sponsoring me** via [GitHub Sponsors](https://github.com/sponsors/binwiederhier)
+and [Liberapay](https://en.liberapay.com/ntfy/), or by buying a [paid plan via the web app](https://ntfy.sh/app) (20% off
+if you use promo code `MYTOPIC`). ntfy will always remain open source.
+
+**Features:**
+
+* Support for text-to-speech style [phone calls](publish.md#phone-calls) using the `X-Call` header (no ticket)
+* Admin API to manage users and ACL, `v1/users` + `v1/users/access` (intentionally undocumented as of now, [#722](https://github.com/binwiederhier/ntfy/issues/722), thanks to [@CreativeWarlock](https://github.com/CreativeWarlock) for sponsoring this ticket)
+* Added `upstream-access-token` config option to allow authorized access to upstream servers (no ticket)
+
+**Bug fixes + maintenance:**
+
+* Removed old ntfy website from ntfy entirely (no ticket)
+* Make emoji lookup for emails more efficient ([#725](https://github.com/binwiederhier/ntfy/pull/725), thanks to [@adamantike](https://github.com/adamantike))
+* Fix potential subscriber ID clash ([#712](https://github.com/binwiederhier/ntfy/issues/712), thanks to [@peterbourgon](https://github.com/peterbourgon) for reporting, and [@dropdevrahul](https://github.com/dropdevrahul) for fixing)
+* Support for `quoted-printable` in incoming emails ([#719](https://github.com/binwiederhier/ntfy/pull/719), thanks to [@Aerion](https://github.com/Aerion))
+* Attachments with filenames that are downloaded using a browser will now download with the proper filename ([#726](https://github.com/binwiederhier/ntfy/issues/726), thanks to [@un99known99](https://github.com/un99known99) for reporting, and [@wunter8](https://github.com/wunter8) for fixing)
+* Fix web app i18n issue in account preferences ([#730](https://github.com/binwiederhier/ntfy/issues/730), thanks to [@codebude](https://github.com/codebude) for reporting)
+
+## ntfy server v2.4.0
+Released Apr 26, 2023
+
+This release adds a tiny `v1/stats` endpoint to expose how many messages have been published, and adds suport to encode the `X-Title`,
+`X-Message` and `X-Tags` header as RFC 2047. It's a pretty small release, and mainly enables the release of the new ntfy.sh website.
+
+❤️ If you like ntfy, **please consider sponsoring me** via [GitHub Sponsors](https://github.com/sponsors/binwiederhier)
+and [Liberapay](https://en.liberapay.com/ntfy/), or by buying a [paid plan via the web app](https://ntfy.sh/app). ntfy
+will always remain open source.
+
+**Features:**
+
+* [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) can now be installed via Homebrew (thanks to [@Moulick](https://github.com/Moulick))
+* Added `v1/stats` endpoint to expose messages stats (no ticket)
+* Support [RFC 2047](https://datatracker.ietf.org/doc/html/rfc2047#section-2) encoded headers (no ticket, honorable mention to [mqttwarn](https://github.com/jpmens/mqttwarn/pull/638) and [@amotl](https://github.com/amotl))
+
+**Bug fixes + maintenance:**
+
+* Hide country flags on Windows ([#606](https://github.com/binwiederhier/ntfy/issues/606), thanks to [@cmeis](https://github.com/cmeis) for reporting, and to [@pokej6](https://github.com/pokej6) for fixing it)
+* `ntfy sub` now uses default auth credentials as defined in `client.yml` ([#698](https://github.com/binwiederhier/ntfy/issues/698), thanks to [@CrimsonFez](https://github.com/CrimsonFez) for reporting, and to [@wunter8](https://github.com/wunter8) for fixing it)
+
+**Documentation:**
+
+* Updated PowerShell examples ([#697](https://github.com/binwiederhier/ntfy/pull/697), thanks to [@Natfan](https://github.com/Natfan))
+
+**Additional languages:**
+
+* Swedish (thanks to [@hellbown](https://hosted.weblate.org/user/Shjosan/))
+
+## ntfy server v2.3.1 
+Released March 30, 2023
+
+This release disables server-initiated polling of iOS devices entirely, thereby eliminating the thundering herd problem
+on ntfy.sh that we observe every 20 minutes. The polling was never strictly necessary, and has actually caused duplicate
+delivery issues as well, so disabling it should not have any negative effects. iOS users, please reach out via Discord
+or Matrix if there are issues.
+
+**Bug fixes + maintenance:**
+
+* Disable iOS polling entirely ([#677](https://github.com/binwiederhier/ntfy/issues/677)/[#509](https://github.com/binwiederhier/ntfy/issues/509))
+
+## ntfy server v2.3.0
+Released March 29, 2023
+
+This release primarily fixes an issue with delayed messages, and it adds support for Go's profiler (if enabled), which
+will allow investigating usage spikes in more detail. There will likely be a follow-up release this week to fix the
+actual spikes [caused by iOS devices](https://github.com/binwiederhier/ntfy/issues/677).
+
+**Features:**
+
+* ntfy now supports Go's `pprof` profiler, if enabled (relates to [#677](https://github.com/binwiederhier/ntfy/issues/677))
+
+**Bug fixes + maintenance:**
+
+* Fix delayed message sending from authenticated users ([#679](https://github.com/binwiederhier/ntfy/issues/679))
+* Fixed plural for Polish and other translations ([#678](https://github.com/binwiederhier/ntfy/pull/678), thanks to [@bmoczulski](https://github.com/bmoczulski))
+
+## ntfy server v2.2.0
+Released March 17, 2023
+
+With this release, ntfy is now able to expose metrics via a `/metrics` endpoint for [Prometheus](https://prometheus.io/), if enabled.
+The endpoint exposes about 20 different counters and gauges, from the number of published messages and emails, to active subscribers,
+visitors and topics. If you'd like more metrics, pop in the Discord/Matrix or file an issue on GitHub. 
+
+On top of this, you can now use access tokens in the ntfy CLI (defined in the `client.yml` file), fixed a bug in `ntfy subscribe`,
+removed the dependency on Google Fonts, and more.
+
+🔥 Reminder: Purchase one of three **ntfy Pro plans** for **50% off** for a limited time (if you use promo code `MYTOPIC`). 
+ntfy Pro gives you higher rate limits and lets you reserve topic names. [Buy through web app](https://ntfy.sh/app).
+
+❤️ If you don't need ntfy Pro, please consider sponsoring ntfy via [GitHub Sponsors](https://github.com/sponsors/binwiederhier)
+and [Liberapay](https://en.liberapay.com/ntfy/). ntfy will stay open source forever.
+
+**Features:**
+
+* Monitoring: ntfy now exposes a `/metrics` endpoint for [Prometheus](https://prometheus.io/) if [configured](config.md#monitoring) ([#210](https://github.com/binwiederhier/ntfy/issues/210), thanks to [@rogeliodh](https://github.com/rogeliodh) for reporting)
+* You can now use tokens in `client.yml` for publishing and subscribing ([#653](https://github.com/binwiederhier/ntfy/issues/653), thanks to [@wunter8](https://github.com/wunter8))
+
+**Bug fixes + maintenance:**
+
+* `ntfy sub --poll --from-config` will now include authentication headers from client.yml (if applicable) ([#658](https://github.com/binwiederhier/ntfy/issues/658), thanks to [@wunter8](https://github.com/wunter8))
+* Docs: Removed dependency on Google Fonts in docs ([#554](https://github.com/binwiederhier/ntfy/issues/554), thanks to [@bt90](https://github.com/bt90) for reporting, and [@ozskywalker](https://github.com/ozskywalker) for implementing)
+* Increase allowed auth failure attempts per IP address to 30 (no ticket)
+* Web app: Increase maximum incremental backoff retry interval to 2 minutes (no ticket)
+
+**Documentation:**
+
+* Make query parameter description more clear ([#630](https://github.com/binwiederhier/ntfy/issues/630), thanks to [@bbaa-bbaa](https://github.com/bbaa-bbaa) for reporting, and to [@wunter8](https://github.com/wunter8) for a fix)
+
+## ntfy server v2.1.2
+Released March 4, 2023
+
+This is a hotfix release, mostly to combat the ridiculous amount of Matrix requests with invalid/dead pushkeys, and the
+corresponding HTTP 507 responses the ntfy.sh server is sending out. We're up to >600k HTTP 507 responses per day 🤦. This 
+release solves this issue by rejecting Matrix pushkeys, if nobody has subscribed to the corresponding topic for 12 hours.
+
+The release furthermore reverts the default rate limiting behavior for UnifiedPush to be publisher-based, and introduces
+a flag to enable [subscriber-based rate limiting](config.md#subscriber-based-rate-limiting) for high volume servers.
+
+**Features:**
+
+* Support SMTP servers without auth ([#645](https://github.com/binwiederhier/ntfy/issues/645), thanks to [@Sharknoon](https://github.com/Sharknoon) for reporting)
+
+**Bug fixes + maintenance:**
+
+* Token auth doesn't work if default user credentials are defined in `client.yml` ([#650](https://github.com/binwiederhier/ntfy/issues/650), thanks to [@Xinayder](https://github.com/Xinayder))
+* Add `visitor-subscriber-rate-limiting` flag to allow enabling [subscriber-based rate limiting](config.md#subscriber-based-rate-limiting) (off by default now, [#649](https://github.com/binwiederhier/ntfy/issues/649)/[#655](https://github.com/binwiederhier/ntfy/pull/655), thanks to [@barathrm](https://github.com/barathrm) for reporting, and to [@karmanyaahm](https://github.com/karmanyaahm) and [@p1gp1g](https://github.com/p1gp1g) for help with the design)
+* Reject Matrix pushkey after 12 hours of inactivity on a topic, if `visitor-subscriber-rate-limiting` is enabled ([#643](https://github.com/binwiederhier/ntfy/pull/643), thanks to [@karmanyaahm](https://github.com/karmanyaahm) and [@p1gp1g](https://github.com/p1gp1g) for help with the design)  
+
+**Additional languages:**
+
+* Danish (thanks to [@Andersbiha](https://hosted.weblate.org/user/Andersbiha/))
+
+## ntfy server v2.1.1
+Released March 1, 2023
+
+This is a tiny release with a few bug fixes, but it's big for me personally. After almost three months of work, 
+**today I am finally launching the paid plans on ntfy.sh** 🥳 🎉. 
+
+You are now able to purchase one of three plans that'll give you **higher rate limits** (messages, emails, attachment sizes, ...), 
+as well as the ability to **reserve topic names** for your personal use, while at the same time supporting me and the
+ntfy open source project ❤️. You can check out the pricing, and [purchase plans through the web app](https://ntfy.sh/app) (use
+promo code `MYTOPIC` for a **50% discount**, limited time only).
+
+And as I've said many times: Do not worry. **ntfy will always stay open source**, and that includes all features. There
+are no closed-source features. So if you'd like to run your own server, you can!
+
+**Bug fixes + maintenance:**
+
+* Fix panic when using Firebase without users ([#641](https://github.com/binwiederhier/ntfy/issues/641), thanks to [u/heavybell](https://www.reddit.com/user/heavybell/) for reporting)
+* Remove health check from `Dockerfile` and [document it](config.md#health-checks) ([#635](https://github.com/binwiederhier/ntfy/issues/635), thanks to [@Andersbiha](https://github.com/Andersbiha)) 
+* Upgrade dialog: Disable submit button for free tier (no ticket)
+* Allow multiple `log-level-overrides` on the same field (no ticket)
+* Actually remove `ntfy publish --env-topic` flag (as per [deprecations](deprecations.md), no ticket)
+* Added `billing-contact` config option (no ticket)
+
 ## ntfy server v2.1.0
 Released February 25, 2023
 
@@ -16,6 +178,10 @@ which ntfy rejected with an HTTP 401. We now ignore unsupported header values.
 As of this release, ntfy also supports sending emails to protected topics, and it ships code to support annual billing
 cycles (not live yet).
 
+As part of this release, I also enabled sign-up and login (free accounts only), and I also started reducing the rate 
+limits for anonymous & free users a bit. With the next release and the launch of the paid plan, I'll reduce the limits
+a bit more. For 90% of users, you should not feel the difference.
+
 **Features:**
 
 * UnifiedPush: Subscriber-based rate limiting for `up*` topics ([#584](https://github.com/binwiederhier/ntfy/pull/584)/[#609](https://github.com/binwiederhier/ntfy/pull/609)/[#633](https://github.com/binwiederhier/ntfy/pull/633), thanks to [@karmanyaahm](https://github.com/karmanyaahm))
@@ -1035,3 +1201,34 @@ Released Dec 28, 2021
 ## Older releases
 For older releases, check out the GitHub releases pages for the [ntfy server](https://github.com/binwiederhier/ntfy/releases)
 and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/releases).
+
+## Not released yet
+
+### ntfy Android app v1.16.1 (UNRELEASED)
+
+**Features:**
+
+* You can now disable UnifiedPush so ntfy does not act as a UnifiedPush distributor ([#646](https://github.com/binwiederhier/ntfy/issues/646), thanks to [@ollien](https://github.com/ollien) for reporting and to [@wunter8](https://github.com/wunter8) for implementing) 
+
+**Bug fixes + maintenance:**
+
+* UnifiedPush subscriptions now include the `Rate-Topics` header to facilitate subscriber-based billing ([#652](https://github.com/binwiederhier/ntfy/issues/652), thanks to [@wunter8](https://github.com/wunter8))
+* Subscriptions without icons no longer appear to use another subscription's icon ([#634](https://github.com/binwiederhier/ntfy/issues/634), thanks to [@topcaser](https://github.com/topcaser) for reporting and to [@wunter8](https://github.com/wunter8) for fixing)
+* Bumped all dependencies to the latest versions (no ticket)
+
+**Additional languages:**
+
+* Swedish (thanks to [@hellbown](https://hosted.weblate.org/user/hellbown/))
+
+### ntfy server v2.6.0 (UNRELEASED)
+
+**Bug fixes:**
+
+* Support encoding any header as RFC 2047 ([#737](https://github.com/binwiederhier/ntfy/issues/737), thanks to [@cfouche3005](https://github.com/cfouche3005) for reporting)
+
+**Maintenance:**
+
+* Improved GitHub Actions flow ([#745](https://github.com/binwiederhier/ntfy/pull/745), thanks to [@nimbleghost](https://github.com/nimbleghost))
+* Web: Add JS formatter "prettier" ([#746](https://github.com/binwiederhier/ntfy/pull/746), thanks to [@nimbleghost](https://github.com/nimbleghost))
+* Web: Add eslint with eslint-config-airbnb ([#748](https://github.com/binwiederhier/ntfy/pull/748), thanks to [@nimbleghost](https://github.com/nimbleghost))
+* Web: Switch to Vite ([#749](https://github.com/binwiederhier/ntfy/pull/749), thanks to [@nimbleghost](https://github.com/nimbleghost))

docs/static/css/extra.css

@@ -3,6 +3,8 @@
     --md-primary-fg-color--light: #338574;
     --md-primary-fg-color--dark:  #338574;
     --md-footer-bg-color:         #353744;
+    --md-text-font:               "Roboto";
+    --md-code-font:               "Roboto Mono";
 }
 
 .md-header__button.md-logo :is(img, svg) {
@@ -69,7 +71,18 @@ figure video {
 }
 
 .remove-md-box td {
-    padding: 0 10px
+    padding: 0 10px;
+}
+
+.emoji-table .c {
+    vertical-align: middle !important;
+}
+
+.emoji-table .e {
+    font-size: 2.5em;
+    padding: 0 2px !important;
+    text-align: center !important;
+    vertical-align: middle !important;
 }
 
 /* Lightbox; thanks to https://yossiabramov.com/blog/vanilla-js-lightbox */
@@ -147,3 +160,57 @@ figure video {
 .lightbox .close-lightbox:hover::before {
     background-color: #fff;
 }
+
+/* roboto-300 - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto';
+    font-style: normal;
+    font-weight: 300;
+    src: url('../fonts/roboto-v30-latin-300.woff2') format('woff2');
+}
+
+/* roboto-regular - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto';
+    font-style: normal;
+    font-weight: 400;
+    src: url('../fonts/roboto-v30-latin-regular.woff2') format('woff2');
+}
+
+/* roboto-italic - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto';
+    font-style: italic;
+    font-weight: 400;
+    src: url('../fonts/roboto-v30-latin-italic.woff2') format('woff2');
+}
+
+/* roboto-500 - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto';
+    font-style: normal;
+    font-weight: 500;
+    src: url('../fonts/roboto-v30-latin-500.woff2') format('woff2');
+}
+
+/* roboto-700 - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto';
+    font-style: normal;
+    font-weight: 700;
+    src: url('../fonts/roboto-v30-latin-700.woff2') format('woff2');
+}
+
+/* roboto-mono - latin */
+@font-face {
+    font-display: swap;
+    font-family: 'Roboto Mono';
+    font-style: normal;
+    font-weight: 400;
+    src: url('../fonts/roboto-mono-v22-latin-regular.woff2') format('woff2');
+}

docs/subscribe/cli.md

@@ -254,13 +254,13 @@ I hope this shows how powerful this command is. Here's a short video that demons
   <figcaption>Execute all the things</figcaption>
 </figure>
 
-If most (or all) of your subscription usernames, passwords, and commands are the same, you can specify a `default-user`, `default-password`, and `default-command` at the top of the
-`client.yml`. If a subscription does not specify a username/password to use or does not have a command, the defaults will be used, otherwise, the subscription settings will
-override the defaults.
+If most (or all) of your subscriptions use the same credentials, you can set defaults in `client.yml`. Use `default-user` and `default-password` or `default-token` (but not both).
+You can also specify a `default-command` that will run when a message is received. If a subscription does not include credentials to use or does not have a command, the defaults
+will be used, otherwise, the subscription settings will override the defaults.
 
 !!! warning
-    Because the `default-user` and `default-password` will be sent for each topic that does not have its own username/password (even if the topic does not require authentication),
-    be sure that the servers/topics you subscribe to use HTTPS to prevent leaking the username and password.
+    Because the `default-user`, `default-password`, and `default-token` will be sent for each topic that does not have its own username/password (even if the topic does not
+    require authentication), be sure that the servers/topics you subscribe to use HTTPS to prevent leaking the username and password.
 
 ### Using the systemd service
 You can use the `ntfy-client` systemd service (see [ntfy-client.service](https://github.com/binwiederhier/ntfy/blob/main/client/ntfy-client.service))

docs/troubleshooting.md

@@ -0,0 +1,131 @@
+# Troubleshooting
+This page lists a few suggestions of what to do when things don't work as expected. This is not a complete list. 
+If this page does not help, feel free to drop by the [Discord](https://discord.gg/cT7ECsZj9w) or [Matrix](https://matrix.to/#/#ntfy:matrix.org)
+and ask there. We're happy to help.
+
+## ntfy server
+If you host your own ntfy server, and you're having issues with any component, it is always helpful to enable debugging/tracing
+in the server. You can find detailed instructions in the [Logging & Debugging](config.md#logging-debugging) section, but it ultimately
+boils down to setting `log-level: debug` or `log-level: trace` in the `server.yml` file:
+
+=== "server.yml (debug)"
+    ``` yaml
+    log-level: debug
+    ```
+
+=== "server.yml (trace)"
+    ``` yaml
+    log-level: trace
+    ```
+
+If you're using environment variables, set `NTFY_LOG_LEVEL=debug` (or `trace`) instead. You can also pass `--debug` or `--trace`
+to the `ntfy serve` command, e.g. `ntfy serve --trace`. If you're using systemd (i.e. `systemctl`) to run ntfy, you can look at
+the logs using `journalctl -u ntfy -f`. The logs will look something like this:
+
+=== "Example logs (debug)"
+    ```
+    $ ntfy serve --debug
+    2023/03/20 14:45:38 INFO Listening on :2586[http] :1025[smtp], ntfy 2.1.2, log level is DEBUG (tag=startup)
+    2023/03/20 14:45:38 DEBUG Waiting until 2023-03-21 00:00:00 +0000 UTC to reset visitor stats (tag=resetter)
+    2023/03/20 14:45:39 DEBUG Rate limiters reset for visitor (visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=0, visitor_messages_limit=500, visitor_messages_remaining=500, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=60, visitor_seen=2023-03-20T14:45:39.7-04:00)
+    2023/03/20 14:45:39 DEBUG HTTP request started (http_method=POST, http_path=/mytopic, tag=http, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=0, visitor_messages_limit=500, visitor_messages_remaining=500, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=60, visitor_seen=2023-03-20T14:45:39.7-04:00)
+    2023/03/20 14:45:39 DEBUG Received message (http_method=POST, http_path=/mytopic, message_body_size=2, message_delayed=false, message_email=, message_event=message, message_firebase=true, message_id=EZu6i2WZjH0v, message_sender=127.0.0.1, message_time=1679337939, message_unifiedpush=false, tag=publish, topic=mytopic, topic_last_access=2023-03-20T14:45:38.319-04:00, topic_subscribers=0, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.0002132248, visitor_seen=2023-03-20T14:45:39.7-04:00)
+    2023/03/20 14:45:39 DEBUG Adding message to cache (http_method=POST, http_path=/mytopic, message_body_size=2, message_event=message, message_id=EZu6i2WZjH0v, message_sender=127.0.0.1, message_time=1679337939, tag=publish, topic=mytopic, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.000259165, visitor_seen=2023-03-20T14:45:39.7-04:00)
+    2023/03/20 14:45:39 DEBUG HTTP request finished (http_method=POST, http_path=/mytopic, tag=http, time_taken_ms=2, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.0004147334, visitor_seen=2023-03-20T14:45:39.7-04:00)
+    2023/03/20 14:45:39 DEBUG Wrote 1 message(s) in 8.285712ms (tag=message_cache)
+    ...    
+    ```
+
+=== "Example logs (trace)"
+    ```
+    $ ntfy serve --trace
+    2023/03/20 14:40:42 INFO Listening on :2586[http] :1025[smtp], ntfy 2.1.2, log level is TRACE (tag=startup)
+    2023/03/20 14:40:42 DEBUG Waiting until 2023-03-21 00:00:00 +0000 UTC to reset visitor stats (tag=resetter)
+    2023/03/20 14:40:59 DEBUG Rate limiters reset for visitor (visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=0, visitor_messages_limit=500, visitor_messages_remaining=500, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=60, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:40:59 TRACE HTTP request started (http_method=POST, http_path=/mytopic, http_request=POST /mytopic HTTP/1.1
+    User-Agent: curl/7.81.0
+    Accept: */*
+    Content-Length: 2
+    Content-Type: application/x-www-form-urlencoded
+    
+    hi, tag=http, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=0, visitor_messages_limit=500, visitor_messages_remaining=500, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=60, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:40:59 TRACE Received message (http_method=POST, http_path=/mytopic, message_body={
+      "id": "Khaup1RVclU3",
+      "time": 1679337659,
+      "expires": 1679380859,
+      "event": "message",
+      "topic": "mytopic",
+      "message": "hi"
+    }, message_body_size=2, message_delayed=false, message_email=, message_event=message, message_firebase=true, message_id=Khaup1RVclU3, message_sender=127.0.0.1, message_time=1679337659, message_unifiedpush=false, tag=publish, topic=mytopic, topic_last_access=2023-03-20T14:40:59.893-04:00, topic_subscribers=0, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.0001785048, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:40:59 DEBUG Adding message to cache (http_method=POST, http_path=/mytopic, message_body_size=2, message_event=message, message_id=Khaup1RVclU3, message_sender=127.0.0.1, message_time=1679337659, tag=publish, topic=mytopic, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.0002044368, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:40:59 DEBUG HTTP request finished (http_method=POST, http_path=/mytopic, tag=http, time_taken_ms=1, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.000220502, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:40:59 TRACE No stream or WebSocket subscribers, not forwarding (message_body_size=2, message_event=message, message_id=Khaup1RVclU3, message_sender=127.0.0.1, message_time=1679337659, tag=publish, topic=mytopic, visitor_auth_limiter_limit=0.016666666666666666, visitor_auth_limiter_tokens=10, visitor_emails=0, visitor_emails_limit=12, visitor_emails_remaining=12, visitor_id=ip:127.0.0.1, visitor_ip=127.0.0.1, visitor_messages=1, visitor_messages_limit=500, visitor_messages_remaining=499, visitor_request_limiter_limit=0.2, visitor_request_limiter_tokens=59.0002369212, visitor_seen=2023-03-20T14:40:59.893-04:00)
+    2023/03/20 14:41:00 DEBUG Wrote 1 message(s) in 9.529196ms (tag=message_cache)
+    ...
+    ```
+
+## Android app
+On Android, you can turn on logging in the settings under **Settings → Record logs**. This will store up to 1,000 log
+entries, which you can then copy or upload. 
+
+<figure markdown>
+  ![Recording logs on Android](static/img/android-screenshot-logs.jpg){ width=400 }
+  <figcaption>Recording logs on Android</figcaption>
+</figure>
+
+When you copy or upload the logs, you can censor them to make it easier to share them with others. ntfy will replace all
+topics and hostnames with fruits. Here's an example:
+
+```
+This is a log of the ntfy Android app. The log shows up to 1,000 entries.
+Server URLs (aside from ntfy.sh) and topics have been replaced with fruits 🍌🥝🍋🥥🥑🍊🍎🍑.
+
+Device info:
+--
+ntfy: 1.16.0 (play)
+OS: 4.19.157-perf+
+Android: 13 (SDK 33)
+...
+
+Logs
+--
+
+1679339199507 2023-03-20 15:06:39.507 D NtfyMainActivity Battery: ignoring optimizations = true (we want this to be true); instant subscriptions = true; remind time reached = true; banner = false
+1679339199507 2023-03-20 15:06:39.507 D NtfySubscriberMgr Enqueuing work to refresh subscriber service
+1679339199589 2023-03-20 15:06:39.589 D NtfySubscriberMgr ServiceStartWorker: Starting foreground service with action START (work ID: a7eeeae9-9356-40df-afbd-236e5ed10a0b)
+1679339199602 2023-03-20 15:06:39.602 D NtfySubscriberService onStartCommand executed with startId: 262
+1679339199602 2023-03-20 15:06:39.602 D NtfySubscriberService using an intent with action START
+1679339199629 2023-03-20 15:06:39.629 D NtfySubscriberService Refreshing subscriptions
+1679339199629 2023-03-20 15:06:39.629 D NtfySubscriberService - Desired connections: [ConnectionId(baseUrl=https://ntfy.sh, topicsToSubscriptionIds={avocado=23801492, lemon=49013182, banana=1309176509201171073, peach=573300885184666424, pineapple=-5956897229801209316, durian=81453333, starfruit=30489279, fruit12=82532869}), ConnectionId(baseUrl=https://orange.example.com, topicsToSubscriptionIds={apple=4971265, dragonfruit=66809328})]
+1679339199629 2023-03-20 15:06:39.629 D NtfySubscriberService - Active connections: [ConnectionId(baseUrl=https://orange.example.com, topicsToSubscriptionIds={apple=4971265, dragonfruit=66809328}), ConnectionId(baseUrl=https://ntfy.sh, topicsToSubscriptionIds={avocado=23801492, lemon=49013182, banana=1309176509201171073, peach=573300885184666424, pineapple=-5956897229801209316, durian=81453333, starfruit=30489279, fruit12=82532869})]
+...
+```
+
+To get live logs, or to get more advanced access to an Android phone, you can use [adb](https://developer.android.com/studio/command-line/adb).
+After you install and [enable adb debugging](https://developer.android.com/studio/command-line/adb#Enabling), you can
+get detailed logs like so:
+
+```
+# Connect to phone (enable Wireless debugging first)
+adb connect 192.168.1.137:39539
+
+# Print all logs; you may have to pass the -s option
+adb logcat
+adb -s 192.168.1.137:39539 logcat
+
+# Only list ntfy logs
+adb logcat --pid=$(adb shell pidof -s io.heckel.ntfy)
+adb -s 192.168.1.137:39539 logcat --pid=$(adb -s 192.168.1.137:39539 shell pidof -s io.heckel.ntfy)
+```
+
+## Web app
+The web app logs everything to the **developer console**, which you can open by **pressing the F12 key** on your 
+keyboard.
+
+<figure markdown>
+  ![Web app logs](static/img/web-logs.png)
+  <figcaption>Web app logs in the developer console</figcaption>
+</figure>
+
+## iOS app
+Sorry, there is no way to debug or get the logs from the iOS app (yet), outside of running the app in Xcode.

go.mod

@@ -4,62 +4,71 @@ go 1.18
 
 require (
 	cloud.google.com/go/firestore v1.9.0 // indirect
-	cloud.google.com/go/storage v1.29.0 // indirect
+	cloud.google.com/go/storage v1.30.1 // indirect
 	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/emersion/go-smtp v0.16.0
-	github.com/gabriel-vasile/mimetype v1.4.1
+	github.com/gabriel-vasile/mimetype v1.4.2
 	github.com/gorilla/websocket v1.5.0
 	github.com/mattn/go-sqlite3 v1.14.16
 	github.com/olebedev/when v0.0.0-20221205223600-4d190b02b8d8
 	github.com/stretchr/testify v1.8.1
-	github.com/urfave/cli/v2 v2.24.4
-	golang.org/x/crypto v0.6.0
-	golang.org/x/oauth2 v0.5.0 // indirect
-	golang.org/x/sync v0.1.0
-	golang.org/x/term v0.5.0
+	github.com/urfave/cli/v2 v2.25.3
+	golang.org/x/crypto v0.9.0
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/sync v0.2.0
+	golang.org/x/term v0.8.0
 	golang.org/x/time v0.3.0
-	google.golang.org/api v0.110.0
+	google.golang.org/api v0.122.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
 require github.com/pkg/errors v0.9.1 // indirect
 
 require (
-	firebase.google.com/go/v4 v4.10.0
-	github.com/stripe/stripe-go/v74 v74.9.0
+	firebase.google.com/go/v4 v4.11.0
+	github.com/prometheus/client_golang v1.15.1
+	github.com/stripe/stripe-go/v74 v74.18.0
 )
 
 require (
-	cloud.google.com/go v0.110.0 // indirect
-	cloud.google.com/go/compute v1.18.0 // indirect
+	cloud.google.com/go v0.110.2 // indirect
+	cloud.google.com/go/compute v1.19.3 // indirect
 	cloud.google.com/go/compute/metadata v0.2.3 // indirect
-	cloud.google.com/go/iam v0.12.0 // indirect
-	cloud.google.com/go/longrunning v0.4.1 // indirect
+	cloud.google.com/go/iam v1.0.1 // indirect
+	cloud.google.com/go/longrunning v0.4.2 // indirect
 	github.com/AlekSi/pointer v1.2.0 // indirect
 	github.com/MicahParks/keyfunc v1.9.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emersion/go-sasl v0.0.0-20220912192320-0145f2c60ead // indirect
 	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/s2a-go v0.1.3 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
-	github.com/googleapis/gax-go/v2 v2.7.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.8.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.43.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/stretchr/objx v0.5.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	golang.org/x/net v0.7.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
-	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/appengine/v2 v2.0.2 // indirect
-	google.golang.org/genproto v0.0.0-20230223222841-637eb2293923 // indirect
-	google.golang.org/grpc v1.53.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/appengine/v2 v2.0.3 // indirect
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
+	google.golang.org/grpc v1.55.0 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,20 +1,21 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.110.0 h1:Zc8gqp3+a9/Eyph2KDmcGaPtbKRIoqq4YTlL4NMD0Ys=
-cloud.google.com/go v0.110.0/go.mod h1:SJnCLqQ0FCFGSZMUNUf84MV3Aia54kn7pi8st7tMzaY=
-cloud.google.com/go/compute v1.18.0 h1:FEigFqoDbys2cvFkZ9Fjq4gnHBP55anJ0yQyau2f9oY=
-cloud.google.com/go/compute v1.18.0/go.mod h1:1X7yHxec2Ga+Ss6jPyjxRxpu2uu7PLgsOVXvgU0yacs=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.110.2 h1:sdFPBr6xG9/wkBbfhmUz/JmZC7X6LavQgcrVINrKiVA=
+cloud.google.com/go v0.110.2/go.mod h1:k04UEeEtb6ZBRTv3dZz4CeJC3jKGxyhl0sAiVVquxiw=
+cloud.google.com/go/compute v1.19.3 h1:DcTwsFgGev/wV5+q8o2fzgcHOaac+DKGC91ZlvpsQds=
+cloud.google.com/go/compute v1.19.3/go.mod h1:qxvISKp/gYnXkSAD1ppcSOveRAmzxicEv/JlizULFrI=
 cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
 cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
 cloud.google.com/go/firestore v1.9.0 h1:IBlRyxgGySXu5VuW0RgGFlTtLukSnNkpDiEOMkQkmpA=
 cloud.google.com/go/firestore v1.9.0/go.mod h1:HMkjKHNTtRyZNiMzu7YAsLr9K3X2udY2AMwDaMEQiiE=
-cloud.google.com/go/iam v0.12.0 h1:DRtTY29b75ciH6Ov1PHb4/iat2CLCvrOm40Q0a6DFpE=
-cloud.google.com/go/iam v0.12.0/go.mod h1:knyHGviacl11zrtZUoDuYpDgLjvr28sLQaG0YB2GYAY=
-cloud.google.com/go/longrunning v0.4.1 h1:v+yFJOfKC3yZdY6ZUI933pIYdhyhV8S3NpWrXWmg7jM=
-cloud.google.com/go/longrunning v0.4.1/go.mod h1:4iWDqhBZ70CvZ6BfETbvam3T8FMvLK+eFj0E6AaRQTo=
-cloud.google.com/go/storage v1.29.0 h1:6weCgzRvMg7lzuUurI4697AqIRPU1SvzHhynwpW31jI=
-cloud.google.com/go/storage v1.29.0/go.mod h1:4puEjyTKnku6gfKoTfNOU/W+a9JyuVNxjpS5GBrB8h4=
-firebase.google.com/go/v4 v4.10.0 h1:dgK/8uwfJbzc5LZK/GyRRfIkZEDObN9q0kgEXsjlXN4=
-firebase.google.com/go/v4 v4.10.0/go.mod h1:m0gLwPY9fxKggizzglgCNWOGnFnVPifLpqZzo5u3e/A=
+cloud.google.com/go/iam v1.0.1 h1:lyeCAU6jpnVNrE9zGQkTl3WgNgK/X+uWwaw0kynZJMU=
+cloud.google.com/go/iam v1.0.1/go.mod h1:yR3tmSL8BcZB4bxByRv2jkSIahVmCtfKZwLYGBalRE8=
+cloud.google.com/go/longrunning v0.4.2 h1:WDKiiNXFTaQ6qz/G8FCOkuY9kJmOJGY67wPUC1M2RbE=
+cloud.google.com/go/longrunning v0.4.2/go.mod h1:OHrnaYyLUV6oqwh0xiS7e5sLQhP1m0QU9R+WhGDMgIQ=
+cloud.google.com/go/storage v1.30.1 h1:uOdMxAs8HExqBlnLtnQyP0YkvbiDpdGShGKtx6U/oNM=
+cloud.google.com/go/storage v1.30.1/go.mod h1:NfxhC0UJE1aXSx7CIIbCf7y9HKT7BiccwkR7+P7gN8E=
+firebase.google.com/go/v4 v4.11.0 h1:szjBoiF33A2FavRLIDZjW1mw+OsW/XAtHoYNIqWOjRk=
+firebase.google.com/go/v4 v4.11.0/go.mod h1:60c36dWLK4+j05Vw5XMllek3b3PCynU3BfI46OSwsUE=
 github.com/AlekSi/pointer v1.2.0 h1:glcy/gc4h8HnG2Z3ZECSzZ1IX1x2JxRVuDzaJwQE0+w=
 github.com/AlekSi/pointer v1.2.0/go.mod h1:gZGfd3dpW4vEc/UlyfKKi1roIqcCgwOIvb0tSNSBle0=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
@@ -22,11 +23,23 @@ github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak
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@@ -38,12 +51,13 @@ github.com/emersion/go-smtp v0.16.0/go.mod h1:qm27SGYgoIPRot6ubfQ/GpiPy/g3PaZAVR
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@@ -54,16 +68,19 @@ github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfb
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@@ -74,91 +91,126 @@ github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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+google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -202,10 +260,12 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
+google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

log/event.go

@@ -3,6 +3,7 @@ package log
 import (
 	"encoding/json"
 	"fmt"
+	"heckel.io/ntfy/util"
 	"log"
 	"os"
 	"sort"
@@ -11,12 +12,11 @@ import (
 )
 
 const (
-	fieldTag        = "tag"
-	fieldError      = "error"
-	fieldTimeTaken  = "time_taken_ms"
-	fieldExitCode   = "exit_code"
-	tagStdLog       = "stdlog"
-	timestampFormat = "2006-01-02T15:04:05.999Z07:00"
+	fieldTag       = "tag"
+	fieldError     = "error"
+	fieldTimeTaken = "time_taken_ms"
+	fieldExitCode  = "exit_code"
+	tagStdLog      = "stdlog"
 )
 
 // Event represents a single log event
@@ -41,34 +41,34 @@ func newEvent() *Event {
 
 // Fatal logs the event as FATAL, and exits the program with exit code 1
 func (e *Event) Fatal(message string, v ...any) {
-	e.Field(fieldExitCode, 1).maybeLog(FatalLevel, message, v...)
+	e.Field(fieldExitCode, 1).Log(FatalLevel, message, v...)
 	fmt.Fprintf(os.Stderr, message+"\n", v...) // Always output error to stderr
 	os.Exit(1)
 }
 
 // Error logs the event with log level error
-func (e *Event) Error(message string, v ...any) {
-	e.maybeLog(ErrorLevel, message, v...)
+func (e *Event) Error(message string, v ...any) *Event {
+	return e.Log(ErrorLevel, message, v...)
 }
 
 // Warn logs the event with log level warn
-func (e *Event) Warn(message string, v ...any) {
-	e.maybeLog(WarnLevel, message, v...)
+func (e *Event) Warn(message string, v ...any) *Event {
+	return e.Log(WarnLevel, message, v...)
 }
 
 // Info logs the event with log level info
-func (e *Event) Info(message string, v ...any) {
-	e.maybeLog(InfoLevel, message, v...)
+func (e *Event) Info(message string, v ...any) *Event {
+	return e.Log(InfoLevel, message, v...)
 }
 
 // Debug logs the event with log level debug
-func (e *Event) Debug(message string, v ...any) {
-	e.maybeLog(DebugLevel, message, v...)
+func (e *Event) Debug(message string, v ...any) *Event {
+	return e.Log(DebugLevel, message, v...)
 }
 
 // Trace logs the event with log level trace
-func (e *Event) Trace(message string, v ...any) {
-	e.maybeLog(TraceLevel, message, v...)
+func (e *Event) Trace(message string, v ...any) *Event {
+	return e.Log(TraceLevel, message, v...)
 }
 
 // Tag adds a "tag" field to the log event
@@ -108,6 +108,14 @@ func (e *Event) Field(key string, value any) *Event {
 	return e
 }
 
+// FieldIf adds a custom field and value to the log event if the given level is loggable
+func (e *Event) FieldIf(key string, value any, level Level) *Event {
+	if e.Loggable(level) {
+		return e.Field(key, value)
+	}
+	return e
+}
+
 // Fields adds a map of fields to the log event
 func (e *Event) Fields(fields Context) *Event {
 	if e.fields == nil {
@@ -138,12 +146,12 @@ func (e *Event) With(contexters ...Contexter) *Event {
 // to determine if they match. This is super complicated, but required for efficiency.
 func (e *Event) Render(l Level, message string, v ...any) string {
 	appliedContexters := e.maybeApplyContexters()
-	if !e.shouldLog(l) {
+	if !e.Loggable(l) {
 		return ""
 	}
 	e.Message = fmt.Sprintf(message, v...)
 	e.Level = l
-	e.Timestamp = e.time.Format(timestampFormat)
+	e.Timestamp = util.FormatTime(e.time)
 	if !appliedContexters {
 		e.applyContexters()
 	}
@@ -153,11 +161,12 @@ func (e *Event) Render(l Level, message string, v ...any) string {
 	return e.String()
 }
 
-// maybeLog logs the event to the defined output, or does nothing if Render returns an empty string
-func (e *Event) maybeLog(l Level, message string, v ...any) {
+// Log logs the event to the defined output, or does nothing if Render returns an empty string
+func (e *Event) Log(l Level, message string, v ...any) *Event {
 	if m := e.Render(l, message, v...); m != "" {
 		log.Println(m)
 	}
+	return e
 }
 
 // Loggable returns true if the given log level is lower or equal to the current log level
@@ -199,10 +208,6 @@ func (e *Event) String() string {
 	return fmt.Sprintf("%s %s (%s)", e.Level.String(), e.Message, strings.Join(fields, ", "))
 }
 
-func (e *Event) shouldLog(l Level) bool {
-	return e.globalLevelWithOverride() <= l
-}
-
 func (e *Event) globalLevelWithOverride() Level {
 	mu.RLock()
 	l, ov := level, overrides
@@ -210,11 +215,13 @@ func (e *Event) globalLevelWithOverride() Level {
 	if e.fields == nil {
 		return l
 	}
-	for field, override := range ov {
+	for field, fieldOverrides := range ov {
 		value, exists := e.fields[field]
 		if exists {
-			if override.value == "" || override.value == value || override.value == fmt.Sprintf("%v", value) {
-				return override.level
+			for _, o := range fieldOverrides {
+				if o.value == "" || o.value == value || o.value == fmt.Sprintf("%v", value) {
+					return o.level
+				}
 			}
 		}
 	}

log/log.go

@@ -19,7 +19,7 @@ var (
 var (
 	level               = DefaultLevel
 	format              = DefaultFormat
-	overrides           = make(map[string]*levelOverride)
+	overrides           = make(map[string][]*levelOverride)
 	output    io.Writer = DefaultOutput
 	filename            = ""
 	mu                  = &sync.RWMutex{}
@@ -111,14 +111,17 @@ func SetLevel(newLevel Level) {
 func SetLevelOverride(field string, value string, level Level) {
 	mu.Lock()
 	defer mu.Unlock()
-	overrides[field] = &levelOverride{value: value, level: level}
+	if _, ok := overrides[field]; !ok {
+		overrides[field] = make([]*levelOverride, 0)
+	}
+	overrides[field] = append(overrides[field], &levelOverride{value: value, level: level})
 }
 
 // ResetLevelOverrides removes all log level overrides
 func ResetLevelOverrides() {
 	mu.Lock()
 	defer mu.Unlock()
-	overrides = make(map[string]*levelOverride)
+	overrides = make(map[string][]*levelOverride)
 }
 
 // CurrentFormat returns the current log format

log/log_test.go

@@ -177,6 +177,51 @@ func TestLog_LevelOverrideAny(t *testing.T) {
 	require.Equal(t, "", File())
 }
 
+func TestLog_LevelOverride_ManyOnSameField(t *testing.T) {
+	t.Cleanup(resetState)
+
+	var out bytes.Buffer
+	SetOutput(&out)
+	SetFormat(JSONFormat)
+	SetLevelOverride("tag", "manager", DebugLevel)
+	SetLevelOverride("tag", "publish", DebugLevel)
+
+	Time(time.Unix(11, 0).UTC()).Field("tag", "manager").Debug("this is logged")
+	Time(time.Unix(12, 0).UTC()).Field("tag", "no-match").Debug("this is not logged")
+	Time(time.Unix(13, 0).UTC()).Field("tag", "publish").Info("this is also logged")
+
+	expected := `{"time":"1970-01-01T00:00:11Z","level":"DEBUG","message":"this is logged","tag":"manager"}
+{"time":"1970-01-01T00:00:13Z","level":"INFO","message":"this is also logged","tag":"publish"}
+`
+	require.Equal(t, expected, out.String())
+	require.False(t, IsFile())
+	require.Equal(t, "", File())
+}
+
+func TestLog_FieldIf(t *testing.T) {
+	t.Cleanup(resetState)
+
+	var out bytes.Buffer
+	SetOutput(&out)
+	SetLevel(DebugLevel)
+	SetFormat(JSONFormat)
+
+	Time(time.Unix(11, 0).UTC()).
+		FieldIf("trace_field", "manager", TraceLevel). // This is not logged
+		Field("tag", "manager").
+		Debug("trace_field is not logged")
+	SetLevel(TraceLevel)
+	Time(time.Unix(12, 0).UTC()).
+		FieldIf("trace_field", "manager", TraceLevel). // Now it is logged
+		Field("tag", "manager").
+		Debug("trace_field is logged")
+
+	expected := `{"time":"1970-01-01T00:00:11Z","level":"DEBUG","message":"trace_field is not logged","tag":"manager"}
+{"time":"1970-01-01T00:00:12Z","level":"DEBUG","message":"trace_field is logged","tag":"manager","trace_field":"manager"}
+`
+	require.Equal(t, expected, out.String())
+}
+
 func TestLog_UsingStdLogger_JSON(t *testing.T) {
 	t.Cleanup(resetState)
 

mkdocs.yml

@@ -9,10 +9,11 @@ edit_uri: blob/main/docs/
 
 theme:
   name: material
+  font: false
   language: en
   custom_dir: docs/_overrides
   logo: static/img/ntfy.png
-  favicon: static/img/favicon.png
+  favicon: static/img/favicon.ico
   include_search_page: false
   search_index_only: true
   palette:
@@ -70,6 +71,9 @@ plugins:
   - search
   - minify:
       minify_html: true
+  - mkdocs-simple-hooks:
+      hooks:
+        on_post_build: "docs.hooks:copy_fonts"
 
 nav:
 - "Getting started": index.md
@@ -89,6 +93,7 @@ nav:
   - "Integrations + projects": integrations.md
   - "Release notes": releases.md
   - "Emojis 🥳 🎉": emojis.md
+  - "Troubleshooting": troubleshooting.md
   - "Known issues": known-issues.md
   - "Deprecation notices": deprecations.md
   - "Development": develop.md

requirements.txt

@@ -1,3 +1,4 @@
 # The documentation uses 'mkdocs', which is written in Python
 mkdocs-material
 mkdocs-minify-plugin
+mkdocs-simple-hooks

scripts/emoji-convert.sh

@@ -29,7 +29,7 @@ You can [tag messages](../publish/#tags-emojis) with emojis 🥳 🎉 and other
 converted to emojis. This is a reference of all supported emojis. To learn more about the feature, please refer to the
 [tagging and emojis page](../publish/#tags-emojis).
 
-<table class="remove-md-box"><tr>
+<table class=\"remove-md-box emoji-table\"><tr>
 " > "$1"
 
   count="$(cat "$SCRIPTDIR/emoji.json" | jq -r '.[] | .emoji' | wc -l)"
@@ -37,9 +37,9 @@ converted to emojis. This is a reference of all supported emojis. To learn more
   for col in 0 1 2; do
     from="$(($col * $percolumn + 1))"
     to="$(($col * $percolumn + 1 + $percolumn))"
-    echo "<td><table><thead><tr><th>Tag</th><th>Emoji</th></tr></thead><tbody>" >> "$1"
+    echo "<td><table><thead><tr><th>Tag</th><th style='text-align: center'>Emoji</th></tr></thead><tbody>" >> "$1"
     cat "$SCRIPTDIR/emoji.json" \
-      | jq -r '.[] | "<tr><td><code>" + .aliases[0] + "</code></td><td>" + .emoji + "</td></tr>"' \
+      | jq -r '.[] | "<tr><td class=c><code>" + .aliases[0] + "</code></td><td class=e>" + .emoji + "</td></tr>"' \
       | sed -n "${from},${to}p" >> "$1"
     echo "</tbody></table></td>" >> "$1"
   done

server/config.go

@@ -49,7 +49,7 @@ const (
 	DefaultVisitorEmailLimitReplenish           = time.Hour
 	DefaultVisitorAccountCreationLimitBurst     = 3
 	DefaultVisitorAccountCreationLimitReplenish = 24 * time.Hour
-	DefaultVisitorAuthFailureLimitBurst         = 10
+	DefaultVisitorAuthFailureLimitBurst         = 30
 	DefaultVisitorAuthFailureLimitReplenish     = time.Minute
 	DefaultVisitorAttachmentTotalSizeLimit      = 100 * 1024 * 1024 // 100 MB
 	DefaultVisitorAttachmentDailyBandwidthLimit = 500 * 1024 * 1024 // 500 MB
@@ -61,7 +61,7 @@ var (
 
 	// DefaultDisallowedTopics defines the topics that are forbidden, because they are used elsewhere. This array can be
 	// extended using the server.yml config. If updated, also update in Android and web app.
-	DefaultDisallowedTopics = []string{"docs", "static", "file", "app", "account", "settings", "signup", "login", "v1"}
+	DefaultDisallowedTopics = []string{"docs", "static", "file", "app", "metrics", "account", "settings", "signup", "login", "v1"}
 )
 
 // Config is the main config struct for the application. Use New to instantiate a default config struct.
@@ -92,12 +92,13 @@ type Config struct {
 	KeepaliveInterval                    time.Duration
 	ManagerInterval                      time.Duration
 	DisallowedTopics                     []string
-	WebRootIsApp                         bool
+	WebRoot                              string // empty to disable
 	DelayedSenderInterval                time.Duration
 	FirebaseKeepaliveInterval            time.Duration
 	FirebasePollInterval                 time.Duration
 	FirebaseQuotaExceededPenaltyDuration time.Duration
 	UpstreamBaseURL                      string
+	UpstreamAccessToken                  string
 	SMTPSenderAddr                       string
 	SMTPSenderUser                       string
 	SMTPSenderPass                       string
@@ -105,6 +106,15 @@ type Config struct {
 	SMTPServerListen                     string
 	SMTPServerDomain                     string
 	SMTPServerAddrPrefix                 string
+	TwilioAccount                        string
+	TwilioAuthToken                      string
+	TwilioPhoneNumber                    string
+	TwilioCallsBaseURL                   string
+	TwilioVerifyBaseURL                  string
+	TwilioVerifyService                  string
+	MetricsEnable                        bool
+	MetricsListenHTTP                    string
+	ProfileListenHTTP                    string
 	MessageLimit                         int
 	MinDelay                             time.Duration
 	MaxDelay                             time.Duration
@@ -124,14 +134,16 @@ type Config struct {
 	VisitorAuthFailureLimitBurst         int
 	VisitorAuthFailureLimitReplenish     time.Duration
 	VisitorStatsResetTime                time.Time // Time of the day at which to reset visitor stats
+	VisitorSubscriberRateLimiting        bool      // Enable subscriber-based rate limiting for UnifiedPush topics
 	BehindProxy                          bool
 	StripeSecretKey                      string
 	StripeWebhookKey                     string
 	StripePriceCacheDuration             time.Duration
-	EnableWeb                            bool
+	BillingContact                       string
 	EnableSignup                         bool // Enable creation of accounts via API and UI
 	EnableLogin                          bool
-	EnableReservations                   bool   // Allow users with role "user" to own/reserve topics
+	EnableReservations                   bool // Allow users with role "user" to own/reserve topics
+	EnableMetrics                        bool
 	AccessControlAllowOrigin             string // CORS header field to restrict access from web clients
 	Version                              string // injected by App
 }
@@ -165,12 +177,13 @@ func NewConfig() *Config {
 		KeepaliveInterval:                    DefaultKeepaliveInterval,
 		ManagerInterval:                      DefaultManagerInterval,
 		DisallowedTopics:                     DefaultDisallowedTopics,
-		WebRootIsApp:                         false,
+		WebRoot:                              "/",
 		DelayedSenderInterval:                DefaultDelayedSenderInterval,
 		FirebaseKeepaliveInterval:            DefaultFirebaseKeepaliveInterval,
 		FirebasePollInterval:                 DefaultFirebasePollInterval,
 		FirebaseQuotaExceededPenaltyDuration: DefaultFirebaseQuotaExceededPenaltyDuration,
 		UpstreamBaseURL:                      "",
+		UpstreamAccessToken:                  "",
 		SMTPSenderAddr:                       "",
 		SMTPSenderUser:                       "",
 		SMTPSenderPass:                       "",
@@ -178,6 +191,12 @@ func NewConfig() *Config {
 		SMTPServerListen:                     "",
 		SMTPServerDomain:                     "",
 		SMTPServerAddrPrefix:                 "",
+		TwilioCallsBaseURL:                   "https://api.twilio.com", // Override for tests
+		TwilioAccount:                        "",
+		TwilioAuthToken:                      "",
+		TwilioPhoneNumber:                    "",
+		TwilioVerifyBaseURL:                  "https://verify.twilio.com", // Override for tests
+		TwilioVerifyService:                  "",
 		MessageLimit:                         DefaultMessageLengthLimit,
 		MinDelay:                             DefaultMinDelay,
 		MaxDelay:                             DefaultMaxDelay,
@@ -197,11 +216,12 @@ func NewConfig() *Config {
 		VisitorAuthFailureLimitBurst:         DefaultVisitorAuthFailureLimitBurst,
 		VisitorAuthFailureLimitReplenish:     DefaultVisitorAuthFailureLimitReplenish,
 		VisitorStatsResetTime:                DefaultVisitorStatsResetTime,
+		VisitorSubscriberRateLimiting:        false,
 		BehindProxy:                          false,
 		StripeSecretKey:                      "",
 		StripeWebhookKey:                     "",
 		StripePriceCacheDuration:             DefaultStripePriceCacheDuration,
-		EnableWeb:                            true,
+		BillingContact:                       "",
 		EnableSignup:                         false,
 		EnableLogin:                          false,
 		EnableReservations:                   false,

server/errors.go

@@ -39,7 +39,7 @@ func (e errHTTP) Context() log.Context {
 
 func (e errHTTP) Wrap(message string, args ...any) *errHTTP {
 	clone := e.clone()
-	clone.Message = fmt.Sprintf("%s, %s", clone.Message, fmt.Sprintf(message, args...))
+	clone.Message = fmt.Sprintf("%s; %s", clone.Message, fmt.Sprintf(message, args...))
 	return &clone
 }
 
@@ -106,26 +106,37 @@ var (
 	errHTTPBadRequestNotAPaidUser                    = &errHTTP{40027, http.StatusBadRequest, "invalid request: not a paid user", "", nil}
 	errHTTPBadRequestBillingRequestInvalid           = &errHTTP{40028, http.StatusBadRequest, "invalid request: not a valid billing request", "", nil}
 	errHTTPBadRequestBillingSubscriptionExists       = &errHTTP{40029, http.StatusBadRequest, "invalid request: billing subscription already exists", "", nil}
+	errHTTPBadRequestTierInvalid                     = &errHTTP{40030, http.StatusBadRequest, "invalid request: tier does not exist", "", nil}
+	errHTTPBadRequestUserNotFound                    = &errHTTP{40031, http.StatusBadRequest, "invalid request: user does not exist", "", nil}
+	errHTTPBadRequestPhoneCallsDisabled              = &errHTTP{40032, http.StatusBadRequest, "invalid request: calling is disabled", "https://ntfy.sh/docs/config/#phone-calls", nil}
+	errHTTPBadRequestPhoneNumberInvalid              = &errHTTP{40033, http.StatusBadRequest, "invalid request: phone number invalid", "https://ntfy.sh/docs/publish/#phone-calls", nil}
+	errHTTPBadRequestPhoneNumberNotVerified          = &errHTTP{40034, http.StatusBadRequest, "invalid request: phone number not verified, or no matching verified numbers found", "https://ntfy.sh/docs/publish/#phone-calls", nil}
+	errHTTPBadRequestAnonymousCallsNotAllowed        = &errHTTP{40035, http.StatusBadRequest, "invalid request: anonymous phone calls are not allowed", "https://ntfy.sh/docs/publish/#phone-calls", nil}
+	errHTTPBadRequestPhoneNumberVerifyChannelInvalid = &errHTTP{40036, http.StatusBadRequest, "invalid request: verification channel must be 'sms' or 'call'", "https://ntfy.sh/docs/publish/#phone-calls", nil}
+	errHTTPBadRequestDelayNoCall                     = &errHTTP{40037, http.StatusBadRequest, "delayed call notifications are not supported", "", nil}
 	errHTTPNotFound                                  = &errHTTP{40401, http.StatusNotFound, "page not found", "", nil}
 	errHTTPUnauthorized                              = &errHTTP{40101, http.StatusUnauthorized, "unauthorized", "https://ntfy.sh/docs/publish/#authentication", nil}
 	errHTTPForbidden                                 = &errHTTP{40301, http.StatusForbidden, "forbidden", "https://ntfy.sh/docs/publish/#authentication", nil}
 	errHTTPConflictUserExists                        = &errHTTP{40901, http.StatusConflict, "conflict: user already exists", "", nil}
 	errHTTPConflictTopicReserved                     = &errHTTP{40902, http.StatusConflict, "conflict: access control entry for topic or topic pattern already exists", "", nil}
 	errHTTPConflictSubscriptionExists                = &errHTTP{40903, http.StatusConflict, "conflict: topic subscription already exists", "", nil}
+	errHTTPConflictPhoneNumberExists                 = &errHTTP{40904, http.StatusConflict, "conflict: phone number already exists", "", nil}
+	errHTTPGonePhoneVerificationExpired              = &errHTTP{41001, http.StatusGone, "phone number verification expired or does not exist", "", nil}
 	errHTTPEntityTooLargeAttachment                  = &errHTTP{41301, http.StatusRequestEntityTooLarge, "attachment too large, or bandwidth limit reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPEntityTooLargeMatrixRequest               = &errHTTP{41302, http.StatusRequestEntityTooLarge, "Matrix request is larger than the max allowed length", "", nil}
 	errHTTPEntityTooLargeJSONBody                    = &errHTTP{41303, http.StatusRequestEntityTooLarge, "JSON body too large", "", nil}
-	errHTTPTooManyRequestsLimitRequests              = &errHTTP{42901, http.StatusTooManyRequests, "limit reached: too many requests, please be nice", "https://ntfy.sh/docs/publish/#limitations", nil}
-	errHTTPTooManyRequestsLimitEmails                = &errHTTP{42902, http.StatusTooManyRequests, "limit reached: too many emails, please be nice", "https://ntfy.sh/docs/publish/#limitations", nil}
-	errHTTPTooManyRequestsLimitSubscriptions         = &errHTTP{42903, http.StatusTooManyRequests, "limit reached: too many active subscriptions, please be nice", "https://ntfy.sh/docs/publish/#limitations", nil}
+	errHTTPTooManyRequestsLimitRequests              = &errHTTP{42901, http.StatusTooManyRequests, "limit reached: too many requests", "https://ntfy.sh/docs/publish/#limitations", nil}
+	errHTTPTooManyRequestsLimitEmails                = &errHTTP{42902, http.StatusTooManyRequests, "limit reached: too many emails", "https://ntfy.sh/docs/publish/#limitations", nil}
+	errHTTPTooManyRequestsLimitSubscriptions         = &errHTTP{42903, http.StatusTooManyRequests, "limit reached: too many active subscriptions", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitTotalTopics           = &errHTTP{42904, http.StatusTooManyRequests, "limit reached: the total number of topics on the server has been reached, please contact the admin", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitAttachmentBandwidth   = &errHTTP{42905, http.StatusTooManyRequests, "limit reached: daily bandwidth reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitAccountCreation       = &errHTTP{42906, http.StatusTooManyRequests, "limit reached: too many accounts created", "https://ntfy.sh/docs/publish/#limitations", nil} // FIXME document limit
 	errHTTPTooManyRequestsLimitReservations          = &errHTTP{42907, http.StatusTooManyRequests, "limit reached: too many topic reservations for this user", "", nil}
 	errHTTPTooManyRequestsLimitMessages              = &errHTTP{42908, http.StatusTooManyRequests, "limit reached: daily message quota reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPTooManyRequestsLimitAuthFailure           = &errHTTP{42909, http.StatusTooManyRequests, "limit reached: too many auth failures", "https://ntfy.sh/docs/publish/#limitations", nil} // FIXME document limit
+	errHTTPTooManyRequestsLimitCalls                 = &errHTTP{42910, http.StatusTooManyRequests, "limit reached: daily phone call quota reached", "https://ntfy.sh/docs/publish/#limitations", nil}
 	errHTTPInternalError                             = &errHTTP{50001, http.StatusInternalServerError, "internal server error", "", nil}
 	errHTTPInternalErrorInvalidPath                  = &errHTTP{50002, http.StatusInternalServerError, "internal server error: invalid path", "", nil}
 	errHTTPInternalErrorMissingBaseURL               = &errHTTP{50003, http.StatusInternalServerError, "internal server error: base-url must be be configured for this feature", "https://ntfy.sh/docs/config/", nil}
-	errHTTPInsufficientStorage                       = &errHTTP{50701, http.StatusInsufficientStorage, "internal server error: cannot publish to UnifiedPush topic without previously active subscriber", "", nil}
+	errHTTPInsufficientStorageUnifiedPush            = &errHTTP{50701, http.StatusInsufficientStorage, "cannot publish to UnifiedPush topic without previously active subscriber", "", nil}
 )

server/file_cache.go

@@ -67,6 +67,7 @@ func (c *fileCache) Write(id string, in io.Reader, limiters ...util.Limiter) (in
 	}
 	c.mu.Lock()
 	c.totalSizeCurrent += size
+	mset(metricAttachmentsTotalSize, c.totalSizeCurrent)
 	c.mu.Unlock()
 	return size, nil
 }
@@ -89,6 +90,7 @@ func (c *fileCache) Remove(ids ...string) error {
 	c.mu.Lock()
 	c.totalSizeCurrent = size
 	c.mu.Unlock()
+	mset(metricAttachmentsTotalSize, size)
 	return nil
 }
 

server/log.go

@@ -20,6 +20,7 @@ const (
 	tagFirebase     = "firebase"
 	tagSMTP         = "smtp"  // Receive email
 	tagEmail        = "email" // Send email
+	tagTwilio       = "twilio"
 	tagFileCache    = "file_cache"
 	tagMessageCache = "message_cache"
 	tagStripe       = "stripe"
@@ -31,7 +32,8 @@ const (
 )
 
 var (
-	normalErrorCodes = []int{http.StatusNotFound, http.StatusBadRequest, http.StatusTooManyRequests, http.StatusUnauthorized, http.StatusInsufficientStorage}
+	normalErrorCodes       = []int{http.StatusNotFound, http.StatusBadRequest, http.StatusTooManyRequests, http.StatusUnauthorized, http.StatusForbidden, http.StatusInsufficientStorage}
+	rateLimitingErrorCodes = []int{http.StatusTooManyRequests, http.StatusRequestEntityTooLarge}
 )
 
 // logr creates a new log event with HTTP request fields

server/message_cache.go

@@ -17,6 +17,7 @@ import (
 var (
 	errUnexpectedMessageType = errors.New("unexpected message type")
 	errMessageNotFound       = errors.New("message not found")
+	errNoRows                = errors.New("no rows found")
 )
 
 // Messages cache
@@ -54,6 +55,11 @@ const (
 		CREATE INDEX IF NOT EXISTS idx_sender ON messages (sender);
 		CREATE INDEX IF NOT EXISTS idx_user ON messages (user);
 		CREATE INDEX IF NOT EXISTS idx_attachment_expires ON messages (attachment_expires);
+		CREATE TABLE IF NOT EXISTS stats (
+			key TEXT PRIMARY KEY,
+			value INT
+		);
+		INSERT INTO stats (key, value) VALUES ('messages', 0);
 		COMMIT;
 	`
 	insertMessageQuery = `
@@ -108,11 +114,14 @@ const (
 	selectAttachmentsExpiredQuery      = `SELECT mid FROM messages WHERE attachment_expires > 0 AND attachment_expires <= ? AND attachment_deleted = 0`
 	selectAttachmentsSizeBySenderQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE user = '' AND sender = ? AND attachment_expires >= ?`
 	selectAttachmentsSizeByUserIDQuery = `SELECT IFNULL(SUM(attachment_size), 0) FROM messages WHERE user = ? AND attachment_expires >= ?`
+
+	selectStatsQuery = `SELECT value FROM stats WHERE key = 'messages'`
+	updateStatsQuery = `UPDATE stats SET value = ? WHERE key = 'messages'`
 )
 
 // Schema management queries
 const (
-	currentSchemaVersion          = 10
+	currentSchemaVersion          = 11
 	createSchemaVersionTableQuery = `
 		CREATE TABLE IF NOT EXISTS schemaVersion (
 			id INT PRIMARY KEY,
@@ -222,20 +231,30 @@ const (
 		CREATE INDEX IF NOT EXISTS idx_attachment_expires ON messages (attachment_expires);
 	`
 	migrate9To10UpdateMessageExpiryQuery = `UPDATE messages SET expires = time + ?`
+
+	// 10 -> 11
+	migrate10To11AlterMessagesTableQuery = `
+		CREATE TABLE IF NOT EXISTS stats (
+			key TEXT PRIMARY KEY,
+			value INT
+		);
+		INSERT INTO stats (key, value) VALUES ('messages', 0);
+	`
 )
 
 var (
 	migrations = map[int]func(db *sql.DB, cacheDuration time.Duration) error{
-		0: migrateFrom0,
-		1: migrateFrom1,
-		2: migrateFrom2,
-		3: migrateFrom3,
-		4: migrateFrom4,
-		5: migrateFrom5,
-		6: migrateFrom6,
-		7: migrateFrom7,
-		8: migrateFrom8,
-		9: migrateFrom9,
+		0:  migrateFrom0,
+		1:  migrateFrom1,
+		2:  migrateFrom2,
+		3:  migrateFrom3,
+		4:  migrateFrom4,
+		5:  migrateFrom5,
+		6:  migrateFrom6,
+		7:  migrateFrom7,
+		8:  migrateFrom8,
+		9:  migrateFrom9,
+		10: migrateFrom10,
 	}
 )
 
@@ -706,6 +725,26 @@ func readMessage(rows *sql.Rows) (*message, error) {
 	}, nil
 }
 
+func (c *messageCache) UpdateStats(messages int64) error {
+	_, err := c.db.Exec(updateStatsQuery, messages)
+	return err
+}
+
+func (c *messageCache) Stats() (messages int64, err error) {
+	rows, err := c.db.Query(selectStatsQuery)
+	if err != nil {
+		return 0, err
+	}
+	defer rows.Close()
+	if !rows.Next() {
+		return 0, errNoRows
+	}
+	if err := rows.Scan(&messages); err != nil {
+		return 0, err
+	}
+	return messages, nil
+}
+
 func (c *messageCache) Close() error {
 	return c.db.Close()
 }
@@ -889,3 +928,19 @@ func migrateFrom9(db *sql.DB, cacheDuration time.Duration) error {
 	}
 	return tx.Commit()
 }
+
+func migrateFrom10(db *sql.DB, cacheDuration time.Duration) error {
+	log.Tag(tagMessageCache).Info("Migrating cache database schema: from 10 to 11")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate10To11AlterMessagesTableQuery); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(updateSchemaVersion, 11); err != nil {
+		return err
+	}
+	return tx.Commit()
+}

server/server.go

@@ -11,6 +11,7 @@ import (
 	"fmt"
 	"github.com/emersion/go-smtp"
 	"github.com/gorilla/websocket"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"golang.org/x/sync/errgroup"
 	"heckel.io/ntfy/log"
 	"heckel.io/ntfy/user"
@@ -18,6 +19,7 @@ import (
 	"io"
 	"net"
 	"net/http"
+	"net/http/pprof"
 	"net/netip"
 	"net/url"
 	"os"
@@ -37,6 +39,8 @@ type Server struct {
 	config            *Config
 	httpServer        *http.Server
 	httpsServer       *http.Server
+	httpMetricsServer *http.Server
+	httpProfileServer *http.Server
 	unixListener      net.Listener
 	smtpServer        *smtp.Server
 	smtpServerBackend *smtpBackend
@@ -44,14 +48,16 @@ type Server struct {
 	topics            map[string]*topic
 	visitors          map[string]*visitor // ip:<ip> or user:<user>
 	firebaseClient    *firebaseClient
-	messages          int64
+	messages          int64                               // Total number of messages (persisted if messageCache enabled)
+	messagesHistory   []int64                             // Last n values of the messages counter, used to determine rate
 	userManager       *user.Manager                       // Might be nil!
 	messageCache      *messageCache                       // Database that stores the messages
 	fileCache         *fileCache                          // File system based cache that stores attachments
 	stripe            stripeAPI                           // Stripe API, can be replaced with a mock
 	priceCache        *util.LookupCache[map[string]int64] // Stripe price ID -> price as cents (USD implied!)
+	metricsHandler    http.Handler                        // Handles /metrics if enable-metrics set, and listen-metrics-http not set
 	closeChan         chan bool
-	mu                sync.Mutex
+	mu                sync.RWMutex
 }
 
 // handleFunc extends the normal http.HandlerFunc to be able to easily return errors
@@ -72,14 +78,20 @@ var (
 	webConfigPath                                        = "/config.js"
 	accountPath                                          = "/account"
 	matrixPushPath                                       = "/_matrix/push/v1/notify"
+	metricsPath                                          = "/metrics"
 	apiHealthPath                                        = "/v1/health"
-	apiTiers                                             = "/v1/tiers"
+	apiStatsPath                                         = "/v1/stats"
+	apiTiersPath                                         = "/v1/tiers"
+	apiUsersPath                                         = "/v1/users"
+	apiUsersAccessPath                                   = "/v1/users/access"
 	apiAccountPath                                       = "/v1/account"
 	apiAccountTokenPath                                  = "/v1/account/token"
 	apiAccountPasswordPath                               = "/v1/account/password"
 	apiAccountSettingsPath                               = "/v1/account/settings"
 	apiAccountSubscriptionPath                           = "/v1/account/subscription"
 	apiAccountReservationPath                            = "/v1/account/reservation"
+	apiAccountPhonePath                                  = "/v1/account/phone"
+	apiAccountPhoneVerifyPath                            = "/v1/account/phone/verify"
 	apiAccountBillingPortalPath                          = "/v1/account/billing/portal"
 	apiAccountBillingWebhookPath                         = "/v1/account/billing/webhook"
 	apiAccountBillingSubscriptionPath                    = "/v1/account/billing/subscription"
@@ -90,13 +102,13 @@ var (
 	docsRegex                                            = regexp.MustCompile(`^/docs(|/.*)$`)
 	fileRegex                                            = regexp.MustCompile(`^/file/([-_A-Za-z0-9]{1,64})(?:\.[A-Za-z0-9]{1,16})?$`)
 	urlRegex                                             = regexp.MustCompile(`^https?://`)
+	phoneNumberRegex                                     = regexp.MustCompile(`^\+\d{1,100}$`)
 
 	//go:embed site
-	webFs        embed.FS
-	webFsCached  = &util.CachingEmbedFS{ModTime: time.Now(), FS: webFs}
-	webSiteDir   = "/site"
-	webHomeIndex = "/home.html" // Landing page, only if "web-root: home"
-	webAppIndex  = "/app.html"  // React app
+	webFs       embed.FS
+	webFsCached = &util.CachingEmbedFS{ModTime: time.Now(), FS: webFs}
+	webSiteDir  = "/site"
+	webAppIndex = "/app.html" // React app
 
 	//go:embed docs
 	docsStaticFs     embed.FS
@@ -110,9 +122,10 @@ const (
 	newMessageBody           = "New message"             // Used in poll requests as generic message
 	defaultAttachmentMessage = "You received a file: %s" // Used if message body is empty, and there is an attachment
 	encodingBase64           = "base64"                  // Used mainly for binary UnifiedPush messages
-	jsonBodyBytesLimit       = 16384
-	unifiedPushTopicPrefix   = "up" // Temporarily, we rate limit all "up*" topics based on the subscriber
-	unifiedPushTopicLength   = 14
+	jsonBodyBytesLimit       = 16384                     // Max number of bytes for a JSON request body
+	unifiedPushTopicPrefix   = "up"                      // Temporarily, we rate limit all "up*" topics based on the subscriber
+	unifiedPushTopicLength   = 14                        // Length of UnifiedPush topics, including the "up" part
+	messagesHistoryMax       = 10                        // Number of message count values to keep in memory
 )
 
 // WebSocket constants
@@ -142,6 +155,10 @@ func New(conf *Config) (*Server, error) {
 	if err != nil {
 		return nil, err
 	}
+	messages, err := messageCache.Stats()
+	if err != nil {
+		return nil, err
+	}
 	var fileCache *fileCache
 	if conf.AttachmentCacheDir != "" {
 		fileCache, err = newFileCache(conf.AttachmentCacheDir, conf.AttachmentTotalSizeLimit)
@@ -162,18 +179,26 @@ func New(conf *Config) (*Server, error) {
 		if err != nil {
 			return nil, err
 		}
-		firebaseClient = newFirebaseClient(sender, userManager)
+		// This awkward logic is required because Go is weird about nil types and interfaces.
+		// See issue #641, and https://go.dev/play/p/uur1flrv1t3 for an example
+		var auther user.Auther
+		if userManager != nil {
+			auther = userManager
+		}
+		firebaseClient = newFirebaseClient(sender, auther)
 	}
 	s := &Server{
-		config:         conf,
-		messageCache:   messageCache,
-		fileCache:      fileCache,
-		firebaseClient: firebaseClient,
-		smtpSender:     mailer,
-		topics:         topics,
-		userManager:    userManager,
-		visitors:       make(map[string]*visitor),
-		stripe:         stripe,
+		config:          conf,
+		messageCache:    messageCache,
+		fileCache:       fileCache,
+		firebaseClient:  firebaseClient,
+		smtpSender:      mailer,
+		topics:          topics,
+		userManager:     userManager,
+		messages:        messages,
+		messagesHistory: []int64{messages},
+		visitors:        make(map[string]*visitor),
+		stripe:          stripe,
 	}
 	s.priceCache = util.NewLookupCache(s.fetchStripePrices, conf.StripePriceCacheDuration)
 	return s, nil
@@ -204,6 +229,12 @@ func (s *Server) Run() error {
 	if s.config.SMTPServerListen != "" {
 		listenStr += fmt.Sprintf(" %s[smtp]", s.config.SMTPServerListen)
 	}
+	if s.config.MetricsListenHTTP != "" {
+		listenStr += fmt.Sprintf(" %s[http/metrics]", s.config.MetricsListenHTTP)
+	}
+	if s.config.ProfileListenHTTP != "" {
+		listenStr += fmt.Sprintf(" %s[http/profile]", s.config.ProfileListenHTTP)
+	}
 	log.Tag(tagStartup).Info("Listening on%s, ntfy %s, log level is %s", listenStr, s.config.Version, log.CurrentLevel().String())
 	if log.IsFile() {
 		fmt.Fprintf(os.Stderr, "Listening on%s, ntfy %s\n", listenStr, s.config.Version)
@@ -250,6 +281,28 @@ func (s *Server) Run() error {
 			errChan <- httpServer.Serve(s.unixListener)
 		}()
 	}
+	if s.config.MetricsListenHTTP != "" {
+		initMetrics()
+		s.httpMetricsServer = &http.Server{Addr: s.config.MetricsListenHTTP, Handler: promhttp.Handler()}
+		go func() {
+			errChan <- s.httpMetricsServer.ListenAndServe()
+		}()
+	} else if s.config.EnableMetrics {
+		initMetrics()
+		s.metricsHandler = promhttp.Handler()
+	}
+	if s.config.ProfileListenHTTP != "" {
+		profileMux := http.NewServeMux()
+		profileMux.HandleFunc("/debug/pprof/", pprof.Index)
+		profileMux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
+		profileMux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+		profileMux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+		profileMux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+		s.httpProfileServer = &http.Server{Addr: s.config.ProfileListenHTTP, Handler: profileMux}
+		go func() {
+			errChan <- s.httpProfileServer.ListenAndServe()
+		}()
+	}
 	if s.config.SMTPServerListen != "" {
 		go func() {
 			errChan <- s.runSMTPServer()
@@ -310,6 +363,9 @@ func (s *Server) handle(w http.ResponseWriter, r *http.Request) {
 				s.handleError(w, r, v, err)
 				return
 			}
+			if metricHTTPRequests != nil {
+				metricHTTPRequests.WithLabelValues("200", "20000", r.Method).Inc()
+			}
 		}).
 		Debug("HTTP request finished")
 }
@@ -319,6 +375,10 @@ func (s *Server) handleError(w http.ResponseWriter, r *http.Request, v *visitor,
 	if !ok {
 		httpErr = errHTTPInternalError
 	}
+	if metricHTTPRequests != nil {
+		metricHTTPRequests.WithLabelValues(fmt.Sprintf("%d", httpErr.HTTPCode), fmt.Sprintf("%d", httpErr.Code), r.Method).Inc()
+	}
+	isRateLimiting := util.Contains(rateLimitingErrorCodes, httpErr.HTTPCode)
 	isNormalError := strings.Contains(err.Error(), "i/o timeout") || util.Contains(normalErrorCodes, httpErr.HTTPCode)
 	ev := logvr(v, r).Err(err)
 	if websocket.IsWebSocketUpgrade(r) {
@@ -335,6 +395,12 @@ func (s *Server) handleError(w http.ResponseWriter, r *http.Request, v *visitor,
 	} else {
 		ev.Info("Connection closed with HTTP %d (ntfy error %d)", httpErr.HTTPCode, httpErr.Code)
 	}
+	if isRateLimiting && s.config.StripeSecretKey != "" {
+		u := v.User()
+		if u == nil || u.Tier == nil {
+			httpErr = httpErr.Wrap("increase your limits with a paid plan, see %s", s.config.BaseURL)
+		}
+	}
 	w.Header().Set("Content-Type", "application/json")
 	w.Header().Set("Access-Control-Allow-Origin", s.config.AccessControlAllowOrigin) // CORS, allow cross-origin requests
 	w.WriteHeader(httpErr.HTTPCode)
@@ -342,14 +408,24 @@ func (s *Server) handleError(w http.ResponseWriter, r *http.Request, v *visitor,
 }
 
 func (s *Server) handleInternal(w http.ResponseWriter, r *http.Request, v *visitor) error {
-	if r.Method == http.MethodGet && r.URL.Path == "/" {
-		return s.ensureWebEnabled(s.handleHome)(w, r, v)
+	if r.Method == http.MethodGet && r.URL.Path == "/" && s.config.WebRoot == "/" {
+		return s.ensureWebEnabled(s.handleRoot)(w, r, v)
 	} else if r.Method == http.MethodHead && r.URL.Path == "/" {
 		return s.ensureWebEnabled(s.handleEmpty)(w, r, v)
 	} else if r.Method == http.MethodGet && r.URL.Path == apiHealthPath {
 		return s.handleHealth(w, r, v)
 	} else if r.Method == http.MethodGet && r.URL.Path == webConfigPath {
 		return s.ensureWebEnabled(s.handleWebConfig)(w, r, v)
+	} else if r.Method == http.MethodGet && r.URL.Path == apiUsersPath {
+		return s.ensureAdmin(s.handleUsersGet)(w, r, v)
+	} else if r.Method == http.MethodPut && r.URL.Path == apiUsersPath {
+		return s.ensureAdmin(s.handleUsersAdd)(w, r, v)
+	} else if r.Method == http.MethodDelete && r.URL.Path == apiUsersPath {
+		return s.ensureAdmin(s.handleUsersDelete)(w, r, v)
+	} else if (r.Method == http.MethodPut || r.Method == http.MethodPost) && r.URL.Path == apiUsersAccessPath {
+		return s.ensureAdmin(s.handleAccessAllow)(w, r, v)
+	} else if r.Method == http.MethodDelete && r.URL.Path == apiUsersAccessPath {
+		return s.ensureAdmin(s.handleAccessReset)(w, r, v)
 	} else if r.Method == http.MethodPost && r.URL.Path == apiAccountPath {
 		return s.ensureUserManager(s.handleAccountCreate)(w, r, v)
 	} else if r.Method == http.MethodGet && r.URL.Path == apiAccountPath {
@@ -388,10 +464,20 @@ func (s *Server) handleInternal(w http.ResponseWriter, r *http.Request, v *visit
 		return s.ensurePaymentsEnabled(s.ensureStripeCustomer(s.handleAccountBillingPortalSessionCreate))(w, r, v)
 	} else if r.Method == http.MethodPost && r.URL.Path == apiAccountBillingWebhookPath {
 		return s.ensurePaymentsEnabled(s.ensureUserManager(s.handleAccountBillingWebhook))(w, r, v) // This request comes from Stripe!
-	} else if r.Method == http.MethodGet && r.URL.Path == apiTiers {
+	} else if r.Method == http.MethodPut && r.URL.Path == apiAccountPhoneVerifyPath {
+		return s.ensureUser(s.ensureCallsEnabled(s.withAccountSync(s.handleAccountPhoneNumberVerify)))(w, r, v)
+	} else if r.Method == http.MethodPut && r.URL.Path == apiAccountPhonePath {
+		return s.ensureUser(s.ensureCallsEnabled(s.withAccountSync(s.handleAccountPhoneNumberAdd)))(w, r, v)
+	} else if r.Method == http.MethodDelete && r.URL.Path == apiAccountPhonePath {
+		return s.ensureUser(s.ensureCallsEnabled(s.withAccountSync(s.handleAccountPhoneNumberDelete)))(w, r, v)
+	} else if r.Method == http.MethodGet && r.URL.Path == apiStatsPath {
+		return s.handleStats(w, r, v)
+	} else if r.Method == http.MethodGet && r.URL.Path == apiTiersPath {
 		return s.ensurePaymentsEnabled(s.handleBillingTiersGet)(w, r, v)
 	} else if r.Method == http.MethodGet && r.URL.Path == matrixPushPath {
 		return s.handleMatrixDiscovery(w)
+	} else if r.Method == http.MethodGet && r.URL.Path == metricsPath && s.metricsHandler != nil {
+		return s.handleMetrics(w, r, v)
 	} else if r.Method == http.MethodGet && staticRegex.MatchString(r.URL.Path) {
 		return s.ensureWebEnabled(s.handleStatic)(w, r, v)
 	} else if r.Method == http.MethodGet && docsRegex.MatchString(r.URL.Path) {
@@ -424,12 +510,8 @@ func (s *Server) handleInternal(w http.ResponseWriter, r *http.Request, v *visit
 	return errHTTPNotFound
 }
 
-func (s *Server) handleHome(w http.ResponseWriter, r *http.Request, v *visitor) error {
-	if s.config.WebRootIsApp {
-		r.URL.Path = webAppIndex
-	} else {
-		r.URL.Path = webHomeIndex
-	}
+func (s *Server) handleRoot(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	r.URL.Path = webAppIndex
 	return s.handleStatic(w, r, v)
 }
 
@@ -461,17 +543,16 @@ func (s *Server) handleHealth(w http.ResponseWriter, _ *http.Request, _ *visitor
 }
 
 func (s *Server) handleWebConfig(w http.ResponseWriter, _ *http.Request, _ *visitor) error {
-	appRoot := "/"
-	if !s.config.WebRootIsApp {
-		appRoot = "/app"
-	}
 	response := &apiConfigResponse{
 		BaseURL:            "", // Will translate to window.location.origin
-		AppRoot:            appRoot,
+		AppRoot:            s.config.WebRoot,
 		EnableLogin:        s.config.EnableLogin,
 		EnableSignup:       s.config.EnableSignup,
 		EnablePayments:     s.config.StripeSecretKey != "",
+		EnableCalls:        s.config.TwilioAccount != "",
+		EnableEmails:       s.config.SMTPSenderFrom != "",
 		EnableReservations: s.config.EnableReservations,
+		BillingContact:     s.config.BillingContact,
 		DisallowedTopics:   s.config.DisallowedTopics,
 	}
 	b, err := json.MarshalIndent(response, "", "  ")
@@ -483,17 +564,41 @@ func (s *Server) handleWebConfig(w http.ResponseWriter, _ *http.Request, _ *visi
 	return err
 }
 
+// handleMetrics returns Prometheus metrics. This endpoint is only called if enable-metrics is set,
+// and listen-metrics-http is not set.
+func (s *Server) handleMetrics(w http.ResponseWriter, r *http.Request, _ *visitor) error {
+	s.metricsHandler.ServeHTTP(w, r)
+	return nil
+}
+
+// handleStatic returns all static resources (excluding the docs), including the web app
 func (s *Server) handleStatic(w http.ResponseWriter, r *http.Request, _ *visitor) error {
 	r.URL.Path = webSiteDir + r.URL.Path
 	util.Gzip(http.FileServer(http.FS(webFsCached))).ServeHTTP(w, r)
 	return nil
 }
 
+// handleDocs returns static resources related to the docs
 func (s *Server) handleDocs(w http.ResponseWriter, r *http.Request, _ *visitor) error {
 	util.Gzip(http.FileServer(http.FS(docsStaticCached))).ServeHTTP(w, r)
 	return nil
 }
 
+// handleStats returns the publicly available server stats
+func (s *Server) handleStats(w http.ResponseWriter, _ *http.Request, _ *visitor) error {
+	s.mu.RLock()
+	messages, n, rate := s.messages, len(s.messagesHistory), float64(0)
+	if n > 1 {
+		rate = float64(s.messagesHistory[n-1]-s.messagesHistory[0]) / (float64(n-1) * s.config.ManagerInterval.Seconds())
+	}
+	s.mu.RUnlock()
+	response := &apiStatsResponse{
+		Messages:     messages,
+		MessagesRate: rate,
+	}
+	return s.writeJSON(w, response)
+}
+
 // handleFile processes the download of attachment files. The method handles GET and HEAD requests against a file.
 // Before streaming the file to a client, it locates uploader (m.Sender or m.User) in the message cache, so it
 // can associate the download bandwidth with the uploader.
@@ -509,7 +614,10 @@ func (s *Server) handleFile(w http.ResponseWriter, r *http.Request, v *visitor)
 	file := filepath.Join(s.config.AttachmentCacheDir, messageID)
 	stat, err := os.Stat(file)
 	if err != nil {
-		return errHTTPNotFound
+		return errHTTPNotFound.Fields(log.Context{
+			"message_id":    messageID,
+			"error_context": "filesystem",
+		})
 	}
 	w.Header().Set("Access-Control-Allow-Origin", s.config.AccessControlAllowOrigin) // CORS, allow cross-origin requests
 	w.Header().Set("Content-Length", fmt.Sprintf("%d", stat.Size()))
@@ -530,7 +638,10 @@ func (s *Server) handleFile(w http.ResponseWriter, r *http.Request, v *visitor)
 			}, s.config.CacheBatchTimeout, 100*time.Millisecond, 300*time.Millisecond, 600*time.Millisecond)
 		}
 		if err != nil {
-			return errHTTPNotFound
+			return errHTTPNotFound.Fields(log.Context{
+				"message_id":    messageID,
+				"error_context": "message_cache",
+			})
 		}
 	} else if err != nil {
 		return err
@@ -546,7 +657,7 @@ func (s *Server) handleFile(w http.ResponseWriter, r *http.Request, v *visitor)
 		bandwidthVisitor = s.visitor(m.Sender, nil)
 	}
 	if !bandwidthVisitor.BandwidthAllowed(stat.Size()) {
-		return errHTTPTooManyRequestsLimitAttachmentBandwidth
+		return errHTTPTooManyRequestsLimitAttachmentBandwidth.With(m)
 	}
 	// Actually send file
 	f, err := os.Open(file)
@@ -554,6 +665,9 @@ func (s *Server) handleFile(w http.ResponseWriter, r *http.Request, v *visitor)
 		return err
 	}
 	defer f.Close()
+	if m.Attachment.Name != "" {
+		w.Header().Set("Content-Disposition", "attachment; filename="+strconv.Quote(m.Attachment.Name))
+	}
 	_, err = io.Copy(util.NewContentTypeWriter(w, r.URL.Path), f)
 	return err
 }
@@ -565,28 +679,43 @@ func (s *Server) handleMatrixDiscovery(w http.ResponseWriter) error {
 	return writeMatrixDiscoveryResponse(w)
 }
 
-func (s *Server) handlePublishWithoutResponse(r *http.Request, v *visitor) (*message, error) {
-	t := fromContext[topic](r, contextTopic)
-	vrate := fromContext[visitor](r, contextRateVisitor)
+func (s *Server) handlePublishInternal(r *http.Request, v *visitor) (*message, error) {
+	start := time.Now()
+	t, err := fromContext[*topic](r, contextTopic)
+	if err != nil {
+		return nil, err
+	}
+	vrate, err := fromContext[*visitor](r, contextRateVisitor)
+	if err != nil {
+		return nil, err
+	}
 	body, err := util.Peek(r.Body, s.config.MessageLimit)
 	if err != nil {
 		return nil, err
 	}
 	m := newDefaultMessage(t.ID, "")
-	cache, firebase, email, unifiedpush, e := s.parsePublishParams(r, m)
+	cache, firebase, email, call, unifiedpush, e := s.parsePublishParams(r, m)
 	if e != nil {
 		return nil, e.With(t)
 	}
-	if unifiedpush && t.RateVisitor() == nil {
+	if unifiedpush && s.config.VisitorSubscriberRateLimiting && t.RateVisitor() == nil {
 		// UnifiedPush clients must subscribe before publishing to allow proper subscriber-based rate limiting (see
 		// Rate-Topics header). The 5xx response is because some app servers (in particular Mastodon) will remove
 		// the subscription as invalid if any 400-499 code (except 429/408) is returned.
 		// See https://github.com/mastodon/mastodon/blob/730bb3e211a84a2f30e3e2bbeae3f77149824a68/app/workers/web/push_notification_worker.rb#L35-L46
-		return nil, errHTTPInsufficientStorage.With(t)
+		return nil, errHTTPInsufficientStorageUnifiedPush.With(t)
 	} else if !util.ContainsIP(s.config.VisitorRequestExemptIPAddrs, v.ip) && !vrate.MessageAllowed() {
 		return nil, errHTTPTooManyRequestsLimitMessages.With(t)
 	} else if email != "" && !vrate.EmailAllowed() {
 		return nil, errHTTPTooManyRequestsLimitEmails.With(t)
+	} else if call != "" {
+		var httpErr *errHTTP
+		call, httpErr = s.convertPhoneNumber(v.User(), call)
+		if httpErr != nil {
+			return nil, httpErr.With(t)
+		} else if !vrate.CallAllowed() {
+			return nil, errHTTPTooManyRequestsLimitCalls.With(t)
+		}
 	}
 	if m.PollID != "" {
 		m = newPollRequestMessage(t.ID, m.PollID)
@@ -611,6 +740,7 @@ func (s *Server) handlePublishWithoutResponse(r *http.Request, v *visitor) (*mes
 			"message_firebase":    firebase,
 			"message_unifiedpush": unifiedpush,
 			"message_email":       email,
+			"message_call":        call,
 		})
 	if ev.IsTrace() {
 		ev.Field("message_body", util.MaybeMarshalJSON(m)).Trace("Received message")
@@ -627,6 +757,9 @@ func (s *Server) handlePublishWithoutResponse(r *http.Request, v *visitor) (*mes
 		if s.smtpSender != nil && email != "" {
 			go s.sendEmail(v, m, email)
 		}
+		if s.config.TwilioAccount != "" && call != "" {
+			go s.callPhone(v, r, m, call)
+		}
 		if s.config.UpstreamBaseURL != "" {
 			go s.forwardPollRequest(v, m)
 		}
@@ -646,41 +779,70 @@ func (s *Server) handlePublishWithoutResponse(r *http.Request, v *visitor) (*mes
 	s.mu.Lock()
 	s.messages++
 	s.mu.Unlock()
+	if unifiedpush {
+		minc(metricUnifiedPushPublishedSuccess)
+	}
+	mset(metricMessagePublishDurationMillis, time.Since(start).Milliseconds())
 	return m, nil
 }
 
 func (s *Server) handlePublish(w http.ResponseWriter, r *http.Request, v *visitor) error {
-	m, err := s.handlePublishWithoutResponse(r, v)
+	m, err := s.handlePublishInternal(r, v)
 	if err != nil {
+		minc(metricMessagesPublishedFailure)
 		return err
 	}
+	minc(metricMessagesPublishedSuccess)
 	return s.writeJSON(w, m)
 }
 
 func (s *Server) handlePublishMatrix(w http.ResponseWriter, r *http.Request, v *visitor) error {
-	_, err := s.handlePublishWithoutResponse(r, v)
+	_, err := s.handlePublishInternal(r, v)
 	if err != nil {
+		minc(metricMessagesPublishedFailure)
+		minc(metricMatrixPublishedFailure)
+		if e, ok := err.(*errHTTP); ok && e.HTTPCode == errHTTPInsufficientStorageUnifiedPush.HTTPCode {
+			topic, err := fromContext[*topic](r, contextTopic)
+			if err != nil {
+				return err
+			}
+			pushKey, err := fromContext[string](r, contextMatrixPushKey)
+			if err != nil {
+				return err
+			}
+			if time.Since(topic.LastAccess()) > matrixRejectPushKeyForUnifiedPushTopicWithoutRateVisitorAfter {
+				return writeMatrixResponse(w, pushKey)
+			}
+		}
 		return err
 	}
+	minc(metricMessagesPublishedSuccess)
+	minc(metricMatrixPublishedSuccess)
 	return writeMatrixSuccess(w)
 }
 
 func (s *Server) sendToFirebase(v *visitor, m *message) {
 	logvm(v, m).Tag(tagFirebase).Debug("Publishing to Firebase")
 	if err := s.firebaseClient.Send(v, m); err != nil {
+		minc(metricFirebasePublishedFailure)
 		if err == errFirebaseTemporarilyBanned {
 			logvm(v, m).Tag(tagFirebase).Err(err).Debug("Unable to publish to Firebase: %v", err.Error())
 		} else {
 			logvm(v, m).Tag(tagFirebase).Err(err).Warn("Unable to publish to Firebase: %v", err.Error())
 		}
+		return
 	}
+	minc(metricFirebasePublishedSuccess)
 }
 
 func (s *Server) sendEmail(v *visitor, m *message, email string) {
 	logvm(v, m).Tag(tagEmail).Field("email", email).Debug("Sending email to %s", email)
 	if err := s.smtpSender.Send(v, m, email); err != nil {
 		logvm(v, m).Tag(tagEmail).Field("email", email).Err(err).Warn("Unable to send email to %s: %v", email, err.Error())
+		minc(metricEmailsPublishedFailure)
+		return
 	}
+	minc(metricEmailsPublishedSuccess)
 }
 
 func (s *Server) forwardPollRequest(v *visitor, m *message) {
@@ -693,7 +855,11 @@ func (s *Server) forwardPollRequest(v *visitor, m *message) {
 		logvm(v, m).Err(err).Warn("Unable to publish poll request")
 		return
 	}
+	req.Header.Set("User-Agent", "ntfy/"+s.config.Version)
 	req.Header.Set("X-Poll-ID", m.ID)
+	if s.config.UpstreamAccessToken != "" {
+		req.Header.Set("Authorization", util.BearerAuth(s.config.UpstreamAccessToken))
+	}
 	var httpClient = &http.Client{
 		Timeout: time.Second * 10,
 	}
@@ -702,12 +868,16 @@ func (s *Server) forwardPollRequest(v *visitor, m *message) {
 		logvm(v, m).Err(err).Warn("Unable to publish poll request")
 		return
 	} else if response.StatusCode != http.StatusOK {
-		logvm(v, m).Err(err).Warn("Unable to publish poll request, unexpected HTTP status: %d", response.StatusCode)
+		if response.StatusCode == http.StatusTooManyRequests {
+			logvm(v, m).Err(err).Warn("Unable to publish poll request, the upstream server %s responded with HTTP %s; you may solve this by sending fewer daily messages, or by configuring upstream-access-token (assuming you have an account with higher rate limits) ", s.config.UpstreamBaseURL, response.Status)
+		} else {
+			logvm(v, m).Err(err).Warn("Unable to publish poll request, the upstream server %s responded with HTTP %s", s.config.UpstreamBaseURL, response.Status)
+		}
 		return
 	}
 }
 
-func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, firebase bool, email string, unifiedpush bool, err *errHTTP) {
+func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, firebase bool, email, call string, unifiedpush bool, err *errHTTP) {
 	cache = readBoolParam(r, true, "x-cache", "cache")
 	firebase = readBoolParam(r, true, "x-firebase", "firebase")
 	m.Title = readParam(r, "x-title", "title", "t")
@@ -723,7 +893,7 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 	}
 	if attach != "" {
 		if !urlRegex.MatchString(attach) {
-			return false, false, "", false, errHTTPBadRequestAttachmentURLInvalid
+			return false, false, "", "", false, errHTTPBadRequestAttachmentURLInvalid
 		}
 		m.Attachment.URL = attach
 		if m.Attachment.Name == "" {
@@ -741,13 +911,19 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 	}
 	if icon != "" {
 		if !urlRegex.MatchString(icon) {
-			return false, false, "", false, errHTTPBadRequestIconURLInvalid
+			return false, false, "", "", false, errHTTPBadRequestIconURLInvalid
 		}
 		m.Icon = icon
 	}
 	email = readParam(r, "x-email", "x-e-mail", "email", "e-mail", "mail", "e")
 	if s.smtpSender == nil && email != "" {
-		return false, false, "", false, errHTTPBadRequestEmailDisabled
+		return false, false, "", "", false, errHTTPBadRequestEmailDisabled
+	}
+	call = readParam(r, "x-call", "call")
+	if call != "" && (s.config.TwilioAccount == "" || s.userManager == nil) {
+		return false, false, "", "", false, errHTTPBadRequestPhoneCallsDisabled
+	} else if call != "" && !isBoolValue(call) && !phoneNumberRegex.MatchString(call) {
+		return false, false, "", "", false, errHTTPBadRequestPhoneNumberInvalid
 	}
 	messageStr := strings.ReplaceAll(readParam(r, "x-message", "message", "m"), "\\n", "\n")
 	if messageStr != "" {
@@ -756,24 +932,27 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 	var e error
 	m.Priority, e = util.ParsePriority(readParam(r, "x-priority", "priority", "prio", "p"))
 	if e != nil {
-		return false, false, "", false, errHTTPBadRequestPriorityInvalid
+		return false, false, "", "", false, errHTTPBadRequestPriorityInvalid
 	}
 	m.Tags = readCommaSeparatedParam(r, "x-tags", "tags", "tag", "ta")
 	delayStr := readParam(r, "x-delay", "delay", "x-at", "at", "x-in", "in")
 	if delayStr != "" {
 		if !cache {
-			return false, false, "", false, errHTTPBadRequestDelayNoCache
+			return false, false, "", "", false, errHTTPBadRequestDelayNoCache
 		}
 		if email != "" {
-			return false, false, "", false, errHTTPBadRequestDelayNoEmail // we cannot store the email address (yet)
+			return false, false, "", "", false, errHTTPBadRequestDelayNoEmail // we cannot store the email address (yet)
+		}
+		if call != "" {
+			return false, false, "", "", false, errHTTPBadRequestDelayNoCall // we cannot store the phone number (yet)
 		}
 		delay, err := util.ParseFutureTime(delayStr, time.Now())
 		if err != nil {
-			return false, false, "", false, errHTTPBadRequestDelayCannotParse
+			return false, false, "", "", false, errHTTPBadRequestDelayCannotParse
 		} else if delay.Unix() < time.Now().Add(s.config.MinDelay).Unix() {
-			return false, false, "", false, errHTTPBadRequestDelayTooSmall
+			return false, false, "", "", false, errHTTPBadRequestDelayTooSmall
 		} else if delay.Unix() > time.Now().Add(s.config.MaxDelay).Unix() {
-			return false, false, "", false, errHTTPBadRequestDelayTooLarge
+			return false, false, "", "", false, errHTTPBadRequestDelayTooLarge
 		}
 		m.Time = delay.Unix()
 	}
@@ -781,7 +960,7 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 	if actionsStr != "" {
 		m.Actions, e = parseActions(actionsStr)
 		if e != nil {
-			return false, false, "", false, errHTTPBadRequestActionsInvalid.Wrap(e.Error())
+			return false, false, "", "", false, errHTTPBadRequestActionsInvalid.Wrap(e.Error())
 		}
 	}
 	unifiedpush = readBoolParam(r, false, "x-unifiedpush", "unifiedpush", "up") // see GET too!
@@ -795,7 +974,7 @@ func (s *Server) parsePublishParams(r *http.Request, m *message) (cache bool, fi
 		cache = false
 		email = ""
 	}
-	return cache, firebase, email, unifiedpush, nil
+	return cache, firebase, email, call, unifiedpush, nil
 }
 
 // handlePublishBody consumes the PUT/POST body and decides whether the body is an attachment or the message.
@@ -866,13 +1045,17 @@ func (s *Server) handleBodyAsAttachment(r *http.Request, v *visitor, m *message,
 	}
 	attachmentExpiry := time.Now().Add(vinfo.Limits.AttachmentExpiryDuration).Unix()
 	if m.Time > attachmentExpiry {
-		return errHTTPBadRequestAttachmentsExpiryBeforeDelivery
+		return errHTTPBadRequestAttachmentsExpiryBeforeDelivery.With(m)
 	}
 	contentLengthStr := r.Header.Get("Content-Length")
 	if contentLengthStr != "" { // Early "do-not-trust" check, hard limit see below
 		contentLength, err := strconv.ParseInt(contentLengthStr, 10, 64)
 		if err == nil && (contentLength > vinfo.Stats.AttachmentTotalSizeRemaining || contentLength > vinfo.Limits.AttachmentFileSizeLimit) {
-			return errHTTPEntityTooLargeAttachment
+			return errHTTPEntityTooLargeAttachment.With(m).Fields(log.Context{
+				"message_content_length":          contentLength,
+				"attachment_total_size_remaining": vinfo.Stats.AttachmentTotalSizeRemaining,
+				"attachment_file_size_limit":      vinfo.Limits.AttachmentFileSizeLimit,
+			})
 		}
 	}
 	if m.Attachment == nil {
@@ -984,6 +1167,9 @@ func (s *Server) handleSubscribeHTTP(w http.ResponseWriter, r *http.Request, v *
 	w.Header().Set("Access-Control-Allow-Origin", s.config.AccessControlAllowOrigin) // CORS, allow cross-origin requests
 	w.Header().Set("Content-Type", contentType+"; charset=utf-8")                    // Android/Volley client needs charset!
 	if poll {
+		for _, t := range topics {
+			t.Keepalive()
+		}
 		return s.sendOldMessages(topics, since, scheduled, v, sub)
 	}
 	ctx, cancel := context.WithCancel(context.Background())
@@ -1010,8 +1196,16 @@ func (s *Server) handleSubscribeHTTP(w http.ResponseWriter, r *http.Request, v *
 		case <-r.Context().Done():
 			return nil
 		case <-time.After(s.config.KeepaliveInterval):
-			logvr(v, r).Tag(tagSubscribe).Trace("Sending keepalive message")
+			ev := logvr(v, r).Tag(tagSubscribe)
+			if len(topics) == 1 {
+				ev.With(topics[0]).Trace("Sending keepalive message to %s", topics[0].ID)
+			} else {
+				ev.Trace("Sending keepalive message to %d topics", len(topics))
+			}
 			v.Keepalive()
+			for _, t := range topics {
+				t.Keepalive()
+			}
 			if err := sub(v, newKeepaliveMessage(topicsStr)); err != nil { // Send keepalive message
 				return err
 			}
@@ -1050,7 +1244,7 @@ func (s *Server) handleSubscribeWS(w http.ResponseWriter, r *http.Request, v *vi
 	}
 	defer conn.Close()
 
-	// Subscription connections can be canceled externally, see topic.CancelSubscribers
+	// Subscription connections can be canceled externally, see topic.CancelSubscribersExceptUser
 	cancelCtx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
@@ -1099,6 +1293,9 @@ func (s *Server) handleSubscribeWS(w http.ResponseWriter, r *http.Request, v *vi
 				return &websocket.CloseError{Code: websocket.CloseNormalClosure, Text: "subscription was canceled"}
 			case <-time.After(s.config.KeepaliveInterval):
 				v.Keepalive()
+				for _, t := range topics {
+					t.Keepalive()
+				}
 				if err := ping(); err != nil {
 					return err
 				}
@@ -1121,6 +1318,9 @@ func (s *Server) handleSubscribeWS(w http.ResponseWriter, r *http.Request, v *vi
 	}
 	w.Header().Set("Access-Control-Allow-Origin", s.config.AccessControlAllowOrigin) // CORS, allow cross-origin requests
 	if poll {
+		for _, t := range topics {
+			t.Keepalive()
+		}
 		return s.sendOldMessages(topics, since, scheduled, v, sub)
 	}
 	subscriberIDs := make([]int, 0)
@@ -1164,14 +1364,19 @@ func parseSubscribeParams(r *http.Request) (poll bool, since sinceMarker, schedu
 // maybeSetRateVisitors sets the rate visitor on a topic (v.SetRateVisitor), indicating that all messages published
 // to that topic will be rate limited against the rate visitor instead of the publishing visitor.
 //
-// Setting the rate visitor is ony allowed if
+// Setting the rate visitor is ony allowed if the `visitor-subscriber-rate-limiting` setting is enabled, AND
 // - auth-file is not set (everything is open by default)
-// - the topic is reserved, and v.user is the owner
-// - the topic is not reserved, and v.user has write access
+// - or the topic is reserved, and v.user is the owner
+// - or the topic is not reserved, and v.user has write access
 //
 // Note: This TEMPORARILY also registers all topics starting with "up" (= UnifiedPush). This is to ease the transition
 // until the Android app will send the "Rate-Topics" header.
 func (s *Server) maybeSetRateVisitors(r *http.Request, v *visitor, topics []*topic, rateTopics []string) error {
+	// Bail out if not enabled
+	if !s.config.VisitorSubscriberRateLimiting {
+		return nil
+	}
+
 	// Make a list of topics that we'll actually set the RateVisitor on
 	eligibleRateTopics := make([]*topic, 0)
 	for _, t := range topics {
@@ -1281,6 +1486,7 @@ func (s *Server) handleOptions(w http.ResponseWriter, _ *http.Request, _ *visito
 	return nil
 }
 
+// topicFromPath returns the topic from a root path (e.g. /mytopic), creating it if it doesn't exist.
 func (s *Server) topicFromPath(path string) (*topic, error) {
 	parts := strings.Split(path, "/")
 	if len(parts) < 2 {
@@ -1289,6 +1495,7 @@ func (s *Server) topicFromPath(path string) (*topic, error) {
 	return s.topicFromID(parts[1])
 }
 
+// topicsFromPath returns the topic from a root path (e.g. /mytopic,mytopic2), creating it if it doesn't exist.
 func (s *Server) topicsFromPath(path string) ([]*topic, string, error) {
 	parts := strings.Split(path, "/")
 	if len(parts) < 2 {
@@ -1302,6 +1509,7 @@ func (s *Server) topicsFromPath(path string) ([]*topic, string, error) {
 	return topics, parts[1], nil
 }
 
+// topicsFromIDs returns the topics with the given IDs, creating them if they don't exist.
 func (s *Server) topicsFromIDs(ids ...string) ([]*topic, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
@@ -1321,6 +1529,7 @@ func (s *Server) topicsFromIDs(ids ...string) ([]*topic, error) {
 	return topics, nil
 }
 
+// topicFromID returns the topic with the given ID, creating it if it doesn't exist.
 func (s *Server) topicFromID(id string) (*topic, error) {
 	topics, err := s.topicsFromIDs(id)
 	if err != nil {
@@ -1329,6 +1538,23 @@ func (s *Server) topicFromID(id string) (*topic, error) {
 	return topics[0], nil
 }
 
+// topicsFromPattern returns a list of topics matching the given pattern, but it does not create them.
+func (s *Server) topicsFromPattern(pattern string) ([]*topic, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	patternRegexp, err := regexp.Compile("^" + strings.ReplaceAll(pattern, "*", ".*") + "$")
+	if err != nil {
+		return nil, err
+	}
+	topics := make([]*topic, 0)
+	for _, t := range s.topics {
+		if patternRegexp.MatchString(t.ID) {
+			topics = append(topics, t)
+		}
+	}
+	return topics, nil
+}
+
 func (s *Server) runSMTPServer() error {
 	s.smtpServerBackend = newMailBackend(s.config, s.handle)
 	s.smtpServer = smtp.NewServer(s.smtpServerBackend)
@@ -1398,8 +1624,14 @@ func (s *Server) runFirebaseKeepaliver() {
 		select {
 		case <-time.After(s.config.FirebaseKeepaliveInterval):
 			s.sendToFirebase(v, newKeepaliveMessage(firebaseControlTopic))
-		case <-time.After(s.config.FirebasePollInterval):
-			s.sendToFirebase(v, newKeepaliveMessage(firebasePollTopic))
+		/*
+			FIXME: Disable iOS polling entirely for now due to thundering herd problem (see #677)
+			       To solve this, we'd have to shard the iOS poll topics to spread out the polling evenly.
+			       Given that it's not really necessary to poll, turning it off for now should not have any impact.
+
+			case <-time.After(s.config.FirebasePollInterval):
+				s.sendToFirebase(v, newKeepaliveMessage(firebasePollTopic))
+		*/
 		case <-s.closeChan:
 			return
 		}
@@ -1427,7 +1659,7 @@ func (s *Server) sendDelayedMessages() error {
 	for _, m := range messages {
 		var u *user.User
 		if s.userManager != nil && m.User != "" {
-			u, err = s.userManager.User(m.User)
+			u, err = s.userManager.UserByID(m.User)
 			if err != nil {
 				log.With(m).Err(err).Warn("Error sending delayed message")
 				continue
@@ -1443,9 +1675,9 @@ func (s *Server) sendDelayedMessages() error {
 
 func (s *Server) sendDelayedMessage(v *visitor, m *message) error {
 	logvm(v, m).Debug("Sending delayed message")
-	s.mu.Lock()
+	s.mu.RLock()
 	t, ok := s.topics[m.Topic] // If no subscribers, just mark message as published
-	s.mu.Unlock()
+	s.mu.RUnlock()
 	if ok {
 		go func() {
 			// We do not rate-limit messages here, since we've rate limited them in the PUT/POST handler
@@ -1516,6 +1748,9 @@ func (s *Server) transformBodyJSON(next handleFunc) handleFunc {
 		if m.Delay != "" {
 			r.Header.Set("X-Delay", m.Delay)
 		}
+		if m.Call != "" {
+			r.Header.Set("X-Call", m.Call)
+		}
 		return next(w, r, v)
 	}
 }
@@ -1569,6 +1804,7 @@ func (s *Server) autorizeTopic(next handleFunc, perm user.Permission) handleFunc
 // maybeAuthenticate reads the "Authorization" header and will try to authenticate the user
 // if it is set.
 //
+//   - If auth-file is not configured, immediately return an IP-based visitor
 //   - If the header is not set or not supported (anything non-Basic and non-Bearer),
 //     an IP-based visitor is returned
 //   - If the header is set, authenticate will be called to check the username/password (Basic auth),
@@ -1580,13 +1816,14 @@ func (s *Server) maybeAuthenticate(r *http.Request) (*visitor, error) {
 	// Read "Authorization" header value, and exit out early if it's not set
 	ip := extractIPAddress(r, s.config.BehindProxy)
 	vip := s.visitor(ip, nil)
+	if s.userManager == nil {
+		return vip, nil
+	}
 	header, err := readAuthHeader(r)
 	if err != nil {
 		return vip, err
 	} else if !supportedAuthHeader(header) {
 		return vip, nil
-	} else if s.userManager == nil {
-		return vip, errHTTPUnauthorized
 	}
 	// If we're trying to auth, check the rate limiter first
 	if !vip.AuthAllowed() {
@@ -1682,3 +1919,17 @@ func (s *Server) writeJSON(w http.ResponseWriter, v any) error {
 	}
 	return nil
 }
+
+func (s *Server) updateAndWriteStats(messagesCount int64) {
+	s.mu.Lock()
+	s.messagesHistory = append(s.messagesHistory, messagesCount)
+	if len(s.messagesHistory) > messagesHistoryMax {
+		s.messagesHistory = s.messagesHistory[1:]
+	}
+	s.mu.Unlock()
+	go func() {
+		if err := s.messageCache.UpdateStats(messagesCount); err != nil {
+			log.Tag(tagManager).Err(err).Warn("Cannot write messages stats")
+		}
+	}()
+}

server/server.yml

@@ -117,18 +117,19 @@
 # attachment-expiry-duration: "3h"
 
 # If enabled, allow outgoing e-mail notifications via the 'X-Email' header. If this header is set,
-# messages will additionally be sent out as e-mail using an external SMTP server. As of today, only
-# SMTP servers with plain text auth and STARTLS are supported. Please also refer to the rate limiting settings
-# below (visitor-email-limit-burst & visitor-email-limit-burst).
+# messages will additionally be sent out as e-mail using an external SMTP server.
+#
+# As of today, only SMTP servers with plain text auth (or no auth at all), and STARTLS are supported.
+# Please also refer to the rate limiting settings below (visitor-email-limit-burst & visitor-email-limit-burst).
 #
 # - smtp-sender-addr is the hostname:port of the SMTP server
-# - smtp-sender-user/smtp-sender-pass are the username and password of the SMTP user
 # - smtp-sender-from is the e-mail address of the sender
+# - smtp-sender-user/smtp-sender-pass are the username and password of the SMTP user (leave blank for no auth)
 #
 # smtp-sender-addr:
+# smtp-sender-from:
 # smtp-sender-user:
 # smtp-sender-pass:
-# smtp-sender-from:
 
 # If enabled, ntfy will launch a lightweight SMTP server for incoming messages. Once configured, users can send
 # emails to a topic e-mail address to publish messages to a topic.
@@ -143,6 +144,18 @@
 # smtp-server-domain:
 # smtp-server-addr-prefix:
 
+# If enabled, ntfy can perform voice calls via Twilio via the "X-Call" header.
+#
+# - twilio-account is the Twilio account SID, e.g. AC12345beefbeef67890beefbeef122586
+# - twilio-auth-token is the Twilio auth token, e.g. affebeef258625862586258625862586
+# - twilio-phone-number is the outgoing phone number you purchased, e.g. +18775132586
+# - twilio-verify-service is the Twilio Verify service SID, e.g. VA12345beefbeef67890beefbeef122586
+#
+# twilio-account:
+# twilio-auth-token:
+# twilio-phone-number:
+# twilio-verify-service:
+
 # Interval in which keepalive messages are sent to the client. This is to prevent
 # intermediaries closing the connection for inactivity.
 #
@@ -166,11 +179,13 @@
 #
 # disallowed-topics:
 
-# Defines if the root route (/) is pointing to the landing page (as on ntfy.sh) or the
-# web app. If you self-host, you don't want to change this.
-# Can be "app" (default), "home" or "disable" to disable the web app entirely.
+# Defines the root path of the web app, or disables the web app entirely.
 #
-# web-root: app
+# Can be any simple path, e.g. "/", "/app", or "/ntfy". For backwards-compatibility reasons,
+# the values "app" (maps to "/"), "home" (maps to "/app"), or "disable" (maps to "") to disable
+# the web app entirely.
+#
+# web-root: /
 
 # Various feature flags used to control the web app, and API access, mainly around user and
 # account management.
@@ -193,7 +208,12 @@
 # the message ID of the original message, instructing the iOS app to poll this server for the actual message contents.
 # This is to prevent the upstream server and Firebase/APNS from being able to read the message.
 #
+# - upstream-base-url is the base URL of the upstream server. Should be "https://ntfy.sh".
+# - upstream-access-token is the token used to authenticate with the upstream server. This is only required
+#   if you exceed the upstream rate limits, or the uptream server requires authentication.
+#
 # upstream-base-url:
+# upstream-access-token:
 
 # Rate limiting: Total number of topics before the server rejects new topics.
 #
@@ -234,15 +254,54 @@
 # visitor-attachment-total-size-limit: "100M"
 # visitor-attachment-daily-bandwidth-limit: "500M"
 
+# Rate limiting: Enable subscriber-based rate limiting (mostly used for UnifiedPush)
+#
+# If enabled, subscribers may opt to have published messages counted against their own rate limits, as opposed
+# to the publisher's rate limits. This is especially useful to increase the amount of messages that high-volume
+# publishers (e.g. Matrix/Mastodon servers) are allowed to send.
+#
+# Once enabled, a client may send a "Rate-Topics: <topic1>,<topic2>,..." header when subscribing to topics via
+# HTTP stream, or websockets, thereby registering itself as the "rate visitor", i.e. the visitor whose rate limits
+# to use when publishing on this topic. Note: Setting the rate visitor requires READ-WRITE permission on the topic.
+#
+# UnifiedPush only: If this setting is enabled, publishing to UnifiedPush topics will lead to a HTTP 507 response if
+# no "rate visitor" has been previously registered. This is to avoid burning the publisher's "visitor-message-daily-limit".
+#
+# visitor-subscriber-rate-limiting: false
+
 # Payments integration via Stripe
 #
 # - stripe-secret-key is the key used for the Stripe API communication. Setting this values
 #   enables payments in the ntfy web app (e.g. Upgrade dialog). See https://dashboard.stripe.com/apikeys.
 # - stripe-webhook-key is the key required to validate the authenticity of incoming webhooks from Stripe.
 #   Webhooks are essential up keep the local database in sync with the payment provider. See https://dashboard.stripe.com/webhooks.
+# - billing-contact is an email address or website displayed in the "Upgrade tier" dialog to let people reach
+#   out with billing questions. If unset, nothing will be displayed.
 #
 # stripe-secret-key:
 # stripe-webhook-key:
+# billing-contact:
+
+# Metrics
+#
+# ntfy can expose Prometheus-style metrics via a /metrics endpoint, or on a dedicated listen IP/port.
+# Metrics may be considered sensitive information, so before you enable them, be sure you know what you are
+# doing, and/or secure access to the endpoint in your reverse proxy.
+#
+# - enable-metrics enables the /metrics endpoint for the default ntfy server (i.e. HTTP, HTTPS and/or Unix socket)
+# - metrics-listen-http exposes the metrics endpoint via a dedicated [IP]:port. If set, this option implicitly
+#   enables metrics as well, e.g. "10.0.1.1:9090" or ":9090"
+#
+# enable-metrics: false
+# metrics-listen-http:
+
+# Profiling
+#
+# ntfy can expose Go's net/http/pprof endpoints to support profiling of the ntfy server. If enabled, ntfy will listen
+# on a dedicated listen IP/port, which can be accessed via the web browser on http://<ip>:<port>/debug/pprof/.
+# This can be helpful to expose bottlenecks, and visualize call flows. See https://pkg.go.dev/net/http/pprof for details.
+#
+# profile-listen-http:
 
 # Logging options
 #

server/server_account.go

@@ -56,6 +56,7 @@ func (s *Server) handleAccountGet(w http.ResponseWriter, r *http.Request, v *vis
 			Messages:                 limits.MessageLimit,
 			MessagesExpiryDuration:   int64(limits.MessageExpiryDuration.Seconds()),
 			Emails:                   limits.EmailLimit,
+			Calls:                    limits.CallLimit,
 			Reservations:             limits.ReservationsLimit,
 			AttachmentTotalSize:      limits.AttachmentTotalSizeLimit,
 			AttachmentFileSize:       limits.AttachmentFileSizeLimit,
@@ -67,6 +68,8 @@ func (s *Server) handleAccountGet(w http.ResponseWriter, r *http.Request, v *vis
 			MessagesRemaining:            stats.MessagesRemaining,
 			Emails:                       stats.Emails,
 			EmailsRemaining:              stats.EmailsRemaining,
+			Calls:                        stats.Calls,
+			CallsRemaining:               stats.CallsRemaining,
 			Reservations:                 stats.Reservations,
 			ReservationsRemaining:        stats.ReservationsRemaining,
 			AttachmentTotalSize:          stats.AttachmentTotalSize,
@@ -105,17 +108,19 @@ func (s *Server) handleAccountGet(w http.ResponseWriter, r *http.Request, v *vis
 				CancelAt:     u.Billing.StripeSubscriptionCancelAt.Unix(),
 			}
 		}
-		reservations, err := s.userManager.Reservations(u.Name)
-		if err != nil {
-			return err
-		}
-		if len(reservations) > 0 {
-			response.Reservations = make([]*apiAccountReservation, 0)
-			for _, r := range reservations {
-				response.Reservations = append(response.Reservations, &apiAccountReservation{
-					Topic:    r.Topic,
-					Everyone: r.Everyone.String(),
-				})
+		if s.config.EnableReservations {
+			reservations, err := s.userManager.Reservations(u.Name)
+			if err != nil {
+				return err
+			}
+			if len(reservations) > 0 {
+				response.Reservations = make([]*apiAccountReservation, 0)
+				for _, r := range reservations {
+					response.Reservations = append(response.Reservations, &apiAccountReservation{
+						Topic:    r.Topic,
+						Everyone: r.Everyone.String(),
+					})
+				}
 			}
 		}
 		tokens, err := s.userManager.Tokens(u.ID)
@@ -138,6 +143,15 @@ func (s *Server) handleAccountGet(w http.ResponseWriter, r *http.Request, v *vis
 				})
 			}
 		}
+		if s.config.TwilioAccount != "" {
+			phoneNumbers, err := s.userManager.PhoneNumbers(u.ID)
+			if err != nil {
+				return err
+			}
+			if len(phoneNumbers) > 0 {
+				response.PhoneNumbers = phoneNumbers
+			}
+		}
 	} else {
 		response.Username = user.Everyone
 		response.Role = string(user.RoleAnonymous)
@@ -444,7 +458,7 @@ func (s *Server) handleAccountReservationAdd(w http.ResponseWriter, r *http.Requ
 	if err != nil {
 		return err
 	}
-	t.CancelSubscribers(u.ID)
+	t.CancelSubscribersExceptUser(u.ID)
 	return s.writeJSON(w, newSuccessResponse())
 }
 
@@ -511,6 +525,72 @@ func (s *Server) maybeRemoveMessagesAndExcessReservations(r *http.Request, v *vi
 	return nil
 }
 
+func (s *Server) handleAccountPhoneNumberVerify(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountPhoneNumberVerifyRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !phoneNumberRegex.MatchString(req.Number) {
+		return errHTTPBadRequestPhoneNumberInvalid
+	} else if req.Channel != "sms" && req.Channel != "call" {
+		return errHTTPBadRequestPhoneNumberVerifyChannelInvalid
+	}
+	// Check user is allowed to add phone numbers
+	if u == nil || (u.IsUser() && u.Tier == nil) {
+		return errHTTPUnauthorized
+	} else if u.IsUser() && u.Tier.CallLimit == 0 {
+		return errHTTPUnauthorized
+	}
+	// Check if phone number exists
+	phoneNumbers, err := s.userManager.PhoneNumbers(u.ID)
+	if err != nil {
+		return err
+	} else if util.Contains(phoneNumbers, req.Number) {
+		return errHTTPConflictPhoneNumberExists
+	}
+	// Actually add the unverified number, and send verification
+	logvr(v, r).Tag(tagAccount).Field("phone_number", req.Number).Debug("Sending phone number verification")
+	if err := s.verifyPhoneNumber(v, r, req.Number, req.Channel); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) handleAccountPhoneNumberAdd(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountPhoneNumberAddRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	if !phoneNumberRegex.MatchString(req.Number) {
+		return errHTTPBadRequestPhoneNumberInvalid
+	}
+	if err := s.verifyPhoneNumberCheck(v, r, req.Number, req.Code); err != nil {
+		return err
+	}
+	logvr(v, r).Tag(tagAccount).Field("phone_number", req.Number).Debug("Adding phone number as verified")
+	if err := s.userManager.AddPhoneNumber(u.ID, req.Number); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) handleAccountPhoneNumberDelete(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	u := v.User()
+	req, err := readJSONWithLimit[apiAccountPhoneNumberAddRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	if !phoneNumberRegex.MatchString(req.Number) {
+		return errHTTPBadRequestPhoneNumberInvalid
+	}
+	logvr(v, r).Tag(tagAccount).Field("phone_number", req.Number).Debug("Deleting phone number")
+	if err := s.userManager.RemovePhoneNumber(u.ID, req.Number); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
 // publishSyncEventAsync kicks of a Go routine to publish a sync message to the user's sync topic
 func (s *Server) publishSyncEventAsync(v *visitor) {
 	go func() {

server/server_account_test.go

@@ -151,6 +151,8 @@ func TestAccount_Get_Anonymous(t *testing.T) {
 	require.Equal(t, int64(1004), account.Stats.MessagesRemaining)
 	require.Equal(t, int64(0), account.Stats.Emails)
 	require.Equal(t, int64(24), account.Stats.EmailsRemaining)
+	require.Equal(t, int64(0), account.Stats.Calls)
+	require.Equal(t, int64(0), account.Stats.CallsRemaining)
 
 	rr = request(t, s, "POST", "/mytopic", "", nil)
 	require.Equal(t, 200, rr.Code)
@@ -498,6 +500,8 @@ func TestAccount_Reservation_AddAdminSuccess(t *testing.T) {
 func TestAccount_Reservation_AddRemoveUserWithTierSuccess(t *testing.T) {
 	conf := newTestConfigWithAuthFile(t)
 	conf.EnableSignup = true
+	conf.EnableReservations = true
+	conf.TwilioAccount = "dummy"
 	s := newTestServer(t, conf)
 
 	// Create user
@@ -510,6 +514,7 @@ func TestAccount_Reservation_AddRemoveUserWithTierSuccess(t *testing.T) {
 		MessageLimit:             123,
 		MessageExpiryDuration:    86400 * time.Second,
 		EmailLimit:               32,
+		CallLimit:                10,
 		ReservationLimit:         2,
 		AttachmentFileSizeLimit:  1231231,
 		AttachmentTotalSizeLimit: 123123,
@@ -551,6 +556,7 @@ func TestAccount_Reservation_AddRemoveUserWithTierSuccess(t *testing.T) {
 	require.Equal(t, int64(123), account.Limits.Messages)
 	require.Equal(t, int64(86400), account.Limits.MessagesExpiryDuration)
 	require.Equal(t, int64(32), account.Limits.Emails)
+	require.Equal(t, int64(10), account.Limits.Calls)
 	require.Equal(t, int64(2), account.Limits.Reservations)
 	require.Equal(t, int64(1231231), account.Limits.AttachmentFileSize)
 	require.Equal(t, int64(123123), account.Limits.AttachmentTotalSize)
@@ -657,6 +663,17 @@ func TestAccount_Reservation_Delete_Messages_And_Attachments(t *testing.T) {
 	m2 := toMessage(t, rr.Body.String())
 	require.FileExists(t, filepath.Join(s.config.AttachmentCacheDir, m2.ID))
 
+	// Pre-verify message count and file
+	ms, err := s.messageCache.Messages("mytopic1", sinceAllMessages, false)
+	require.Nil(t, err)
+	require.Equal(t, 1, len(ms))
+	require.FileExists(t, filepath.Join(s.config.AttachmentCacheDir, m1.ID))
+
+	ms, err = s.messageCache.Messages("mytopic2", sinceAllMessages, false)
+	require.Nil(t, err)
+	require.Equal(t, 1, len(ms))
+	require.FileExists(t, filepath.Join(s.config.AttachmentCacheDir, m2.ID))
+
 	// Delete reservation
 	rr = request(t, s, "DELETE", "/v1/account/reservation/mytopic1", ``, map[string]string{
 		"X-Delete-Messages": "true",
@@ -672,9 +689,13 @@ func TestAccount_Reservation_Delete_Messages_And_Attachments(t *testing.T) {
 
 	// Verify that messages and attachments were deleted
 	// This does not explicitly call the manager!
-	time.Sleep(time.Second)
+	waitFor(t, func() bool {
+		ms, err := s.messageCache.Messages("mytopic1", sinceAllMessages, false)
+		require.Nil(t, err)
+		return len(ms) == 0 && !util.FileExists(filepath.Join(s.config.AttachmentCacheDir, m1.ID))
+	})
 
-	ms, err := s.messageCache.Messages("mytopic1", sinceAllMessages, false)
+	ms, err = s.messageCache.Messages("mytopic1", sinceAllMessages, false)
 	require.Nil(t, err)
 	require.Equal(t, 0, len(ms))
 	require.NoFileExists(t, filepath.Join(s.config.AttachmentCacheDir, m1.ID))
@@ -686,93 +707,10 @@ func TestAccount_Reservation_Delete_Messages_And_Attachments(t *testing.T) {
 	require.FileExists(t, filepath.Join(s.config.AttachmentCacheDir, m2.ID))
 }
 
-func TestAccount_Reservation_Add_Kills_Other_Subscribers(t *testing.T) {
-	t.Parallel()
+/*func TestAccount_Persist_UserStats_After_Tier_Change(t *testing.T) {
 	conf := newTestConfigWithAuthFile(t)
 	conf.AuthDefault = user.PermissionReadWrite
-	conf.EnableSignup = true
-	s := newTestServer(t, conf)
-	defer s.closeDatabases()
-
-	// Create user with tier
-	rr := request(t, s, "POST", "/v1/account", `{"username":"phil", "password":"mypass"}`, nil)
-	require.Equal(t, 200, rr.Code)
-
-	require.Nil(t, s.userManager.AddTier(&user.Tier{
-		Code:             "pro",
-		MessageLimit:     20,
-		ReservationLimit: 2,
-	}))
-	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
-
-	// Subscribe anonymously
-	anonCh, userCh := make(chan bool), make(chan bool)
-	go func() {
-		rr := request(t, s, "GET", "/mytopic/json", ``, nil) // This blocks until it's killed!
-		require.Equal(t, 200, rr.Code)
-		messages := toMessages(t, rr.Body.String())
-		require.Equal(t, 2, len(messages)) // This is the meat. We should NOT receive the second message!
-		require.Equal(t, "open", messages[0].Event)
-		require.Equal(t, "message before reservation", messages[1].Message)
-		anonCh <- true
-		log.Info("Anonymous subscription ended")
-	}()
-
-	// Subscribe with user
-	go func() {
-		rr := request(t, s, "GET", "/mytopic/json", ``, map[string]string{ // Blocks!
-			"Authorization": util.BasicAuth("phil", "mypass"),
-		})
-		require.Equal(t, 200, rr.Code)
-		messages := toMessages(t, rr.Body.String())
-		require.Equal(t, 3, len(messages))
-		require.Equal(t, "open", messages[0].Event)
-		require.Equal(t, "message before reservation", messages[1].Message)
-		require.Equal(t, "message after reservation", messages[2].Message)
-		userCh <- true
-		log.Info("User subscription ended")
-	}()
-
-	// Publish message (before reservation)
-	time.Sleep(2 * time.Second) // Wait for subscribers
-	rr = request(t, s, "POST", "/mytopic", "message before reservation", nil)
-	require.Equal(t, 200, rr.Code)
-	time.Sleep(2 * time.Second) // Wait for subscribers to receive message
-
-	// Reserve a topic
-	rr = request(t, s, "POST", "/v1/account/reservation", `{"topic": "mytopic", "everyone":"deny-all"}`, map[string]string{
-		"Authorization": util.BasicAuth("phil", "mypass"),
-	})
-	require.Equal(t, 200, rr.Code)
-
-	// Everyone but phil should be killed
-	select {
-	case <-anonCh:
-	case <-time.After(5 * time.Second):
-		t.Fatal("Waiting for anonymous subscription to be killed failed")
-	}
-
-	// Publish a message
-	rr = request(t, s, "POST", "/mytopic", "message after reservation", map[string]string{
-		"Authorization": util.BasicAuth("phil", "mypass"),
-	})
-	require.Equal(t, 200, rr.Code)
-
-	// Kill user Go routine
-	s.topics["mytopic"].CancelSubscribers("<invalid>")
-
-	select {
-	case <-userCh:
-	case <-time.After(5 * time.Second):
-		t.Fatal("Waiting for user subscription to be killed failed")
-	}
-}
-
-func TestAccount_Persist_UserStats_After_Tier_Change(t *testing.T) {
-	t.Parallel()
-	conf := newTestConfigWithAuthFile(t)
-	conf.AuthDefault = user.PermissionReadWrite
-	conf.AuthStatsQueueWriterInterval = 200 * time.Millisecond
+	conf.AuthStatsQueueWriterInterval = 300 * time.Millisecond
 	s := newTestServer(t, conf)
 	defer s.closeDatabases()
 
@@ -794,13 +732,12 @@ func TestAccount_Persist_UserStats_After_Tier_Change(t *testing.T) {
 	})
 	require.Equal(t, 200, rr.Code)
 
-	// Wait for stats queue writer
-	time.Sleep(300 * time.Millisecond)
-
-	// Verify that message stats were persisted
-	u, err := s.userManager.User("phil")
-	require.Nil(t, err)
-	require.Equal(t, int64(1), u.Stats.Messages)
+	// Wait for stats queue writer, verify that message stats were persisted
+	waitFor(t, func() bool {
+		u, err := s.userManager.User("phil")
+		require.Nil(t, err)
+		return int64(1) == u.Stats.Messages
+	})
 
 	// Change tier, make a request (to reset limiters)
 	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
@@ -818,10 +755,11 @@ func TestAccount_Persist_UserStats_After_Tier_Change(t *testing.T) {
 	require.Equal(t, 200, rr.Code)
 
 	// Verify that message stats were persisted
-	time.Sleep(300 * time.Millisecond)
-	u, err = s.userManager.User("phil")
-	require.Nil(t, err)
-	require.Equal(t, int64(2), u.Stats.Messages) // v.EnqueueUserStats had run!
+	waitFor(t, func() bool {
+		u, err := s.userManager.User("phil")
+		require.Nil(t, err)
+		return int64(2) == u.Stats.Messages // v.EnqueueUserStats had run!
+	})
 
 	// Stats keep counting
 	rr = request(t, s, "GET", "/v1/account", "", map[string]string{
@@ -830,5 +768,4 @@ func TestAccount_Persist_UserStats_After_Tier_Change(t *testing.T) {
 	require.Equal(t, 200, rr.Code)
 	account, _ = util.UnmarshalJSON[apiAccountResponse](io.NopCloser(rr.Body))
 	require.Equal(t, int64(2), account.Stats.Messages) // Is not reset!
-
-}
+}*/

server/server_admin.go

@@ -0,0 +1,143 @@
+package server
+
+import (
+	"heckel.io/ntfy/user"
+	"net/http"
+)
+
+func (s *Server) handleUsersGet(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	users, err := s.userManager.Users()
+	if err != nil {
+		return err
+	}
+	grants, err := s.userManager.AllGrants()
+	if err != nil {
+		return err
+	}
+	usersResponse := make([]*apiUserResponse, len(users))
+	for i, u := range users {
+		tier := ""
+		if u.Tier != nil {
+			tier = u.Tier.Code
+		}
+		userGrants := make([]*apiUserGrantResponse, len(grants[u.ID]))
+		for i, g := range grants[u.ID] {
+			userGrants[i] = &apiUserGrantResponse{
+				Topic:      g.TopicPattern,
+				Permission: g.Allow.String(),
+			}
+		}
+		usersResponse[i] = &apiUserResponse{
+			Username: u.Name,
+			Role:     string(u.Role),
+			Tier:     tier,
+			Grants:   userGrants,
+		}
+	}
+	return s.writeJSON(w, usersResponse)
+}
+
+func (s *Server) handleUsersAdd(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiUserAddRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	} else if !user.AllowedUsername(req.Username) || req.Password == "" {
+		return errHTTPBadRequest.Wrap("username invalid, or password missing")
+	}
+	u, err := s.userManager.User(req.Username)
+	if err != nil && err != user.ErrUserNotFound {
+		return err
+	} else if u != nil {
+		return errHTTPConflictUserExists
+	}
+	var tier *user.Tier
+	if req.Tier != "" {
+		tier, err = s.userManager.Tier(req.Tier)
+		if err == user.ErrTierNotFound {
+			return errHTTPBadRequestTierInvalid
+		} else if err != nil {
+			return err
+		}
+	}
+	if err := s.userManager.AddUser(req.Username, req.Password, user.RoleUser); err != nil {
+		return err
+	}
+	if tier != nil {
+		if err := s.userManager.ChangeTier(req.Username, req.Tier); err != nil {
+			return err
+		}
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) handleUsersDelete(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiUserDeleteRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	u, err := s.userManager.User(req.Username)
+	if err == user.ErrUserNotFound {
+		return errHTTPBadRequestUserNotFound
+	} else if err != nil {
+		return err
+	} else if !u.IsUser() {
+		return errHTTPUnauthorized.Wrap("can only remove regular users from API")
+	}
+	if err := s.userManager.RemoveUser(req.Username); err != nil {
+		return err
+	}
+	if err := s.killUserSubscriber(u, "*"); err != nil { // FIXME super inefficient
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) handleAccessAllow(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiAccessAllowRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	_, err = s.userManager.User(req.Username)
+	if err == user.ErrUserNotFound {
+		return errHTTPBadRequestUserNotFound
+	} else if err != nil {
+		return err
+	}
+	permission, err := user.ParsePermission(req.Permission)
+	if err != nil {
+		return errHTTPBadRequestPermissionInvalid
+	}
+	if err := s.userManager.AllowAccess(req.Username, req.Topic, permission); err != nil {
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) handleAccessReset(w http.ResponseWriter, r *http.Request, v *visitor) error {
+	req, err := readJSONWithLimit[apiAccessResetRequest](r.Body, jsonBodyBytesLimit, false)
+	if err != nil {
+		return err
+	}
+	u, err := s.userManager.User(req.Username)
+	if err != nil {
+		return err
+	}
+	if err := s.userManager.ResetAccess(req.Username, req.Topic); err != nil {
+		return err
+	}
+	if err := s.killUserSubscriber(u, req.Topic); err != nil { // This may be a pattern
+		return err
+	}
+	return s.writeJSON(w, newSuccessResponse())
+}
+
+func (s *Server) killUserSubscriber(u *user.User, topicPattern string) error {
+	topics, err := s.topicsFromPattern(topicPattern)
+	if err != nil {
+		return err
+	}
+	for _, t := range topics {
+		t.CancelSubscriberUser(u.ID)
+	}
+	return nil
+}

server/server_admin_test.go

@@ -0,0 +1,181 @@
+package server
+
+import (
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/user"
+	"heckel.io/ntfy/util"
+	"sync/atomic"
+	"testing"
+	"time"
+)
+
+func TestUser_AddRemove(t *testing.T) {
+	s := newTestServer(t, newTestConfigWithAuthFile(t))
+	defer s.closeDatabases()
+
+	// Create admin, tier
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleAdmin))
+	require.Nil(t, s.userManager.AddTier(&user.Tier{
+		Code: "tier1",
+	}))
+
+	// Create user via API
+	rr := request(t, s, "PUT", "/v1/users", `{"username": "ben", "password":"ben"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Create user with tier via API
+	rr = request(t, s, "PUT", "/v1/users", `{"username": "emma", "password":"emma", "tier": "tier1"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Check users
+	users, err := s.userManager.Users()
+	require.Nil(t, err)
+	require.Equal(t, 4, len(users))
+	require.Equal(t, "phil", users[0].Name)
+	require.Equal(t, "ben", users[1].Name)
+	require.Equal(t, user.RoleUser, users[1].Role)
+	require.Nil(t, users[1].Tier)
+	require.Equal(t, "emma", users[2].Name)
+	require.Equal(t, user.RoleUser, users[2].Role)
+	require.Equal(t, "tier1", users[2].Tier.Code)
+	require.Equal(t, user.Everyone, users[3].Name)
+
+	// Delete user via API
+	rr = request(t, s, "DELETE", "/v1/users", `{"username": "ben"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+}
+
+func TestUser_AddRemove_Failures(t *testing.T) {
+	s := newTestServer(t, newTestConfigWithAuthFile(t))
+	defer s.closeDatabases()
+
+	// Create admin
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleAdmin))
+	require.Nil(t, s.userManager.AddUser("ben", "ben", user.RoleUser))
+
+	// Cannot create user with invalid username
+	rr := request(t, s, "PUT", "/v1/users", `{"username": "not valid", "password":"ben"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 400, rr.Code)
+
+	// Cannot create user if user already exists
+	rr = request(t, s, "PUT", "/v1/users", `{"username": "phil", "password":"phil"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 40901, toHTTPError(t, rr.Body.String()).Code)
+
+	// Cannot create user with invalid tier
+	rr = request(t, s, "PUT", "/v1/users", `{"username": "emma", "password":"emma", "tier": "invalid"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 40030, toHTTPError(t, rr.Body.String()).Code)
+
+	// Cannot delete user as non-admin
+	rr = request(t, s, "DELETE", "/v1/users", `{"username": "ben"}`, map[string]string{
+		"Authorization": util.BasicAuth("ben", "ben"),
+	})
+	require.Equal(t, 401, rr.Code)
+
+	// Delete user via API
+	rr = request(t, s, "DELETE", "/v1/users", `{"username": "ben"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+}
+
+func TestAccess_AllowReset(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.AuthDefault = user.PermissionDenyAll
+	s := newTestServer(t, c)
+	defer s.closeDatabases()
+
+	// User and admin
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleAdmin))
+	require.Nil(t, s.userManager.AddUser("ben", "ben", user.RoleUser))
+
+	// Subscribing not allowed
+	rr := request(t, s, "GET", "/gold/json?poll=1", "", map[string]string{
+		"Authorization": util.BasicAuth("ben", "ben"),
+	})
+	require.Equal(t, 403, rr.Code)
+
+	// Grant access
+	rr = request(t, s, "POST", "/v1/users/access", `{"username": "ben", "topic":"gold", "permission":"ro"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Now subscribing is allowed
+	rr = request(t, s, "GET", "/gold/json?poll=1", "", map[string]string{
+		"Authorization": util.BasicAuth("ben", "ben"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Reset access
+	rr = request(t, s, "DELETE", "/v1/users/access", `{"username": "ben", "topic":"gold"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Subscribing not allowed (again)
+	rr = request(t, s, "GET", "/gold/json?poll=1", "", map[string]string{
+		"Authorization": util.BasicAuth("ben", "ben"),
+	})
+	require.Equal(t, 403, rr.Code)
+}
+
+func TestAccess_AllowReset_NonAdminAttempt(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.AuthDefault = user.PermissionDenyAll
+	s := newTestServer(t, c)
+	defer s.closeDatabases()
+
+	// User
+	require.Nil(t, s.userManager.AddUser("ben", "ben", user.RoleUser))
+
+	// Grant access fails, because non-admin
+	rr := request(t, s, "POST", "/v1/users/access", `{"username": "ben", "topic":"gold", "permission":"ro"}`, map[string]string{
+		"Authorization": util.BasicAuth("ben", "ben"),
+	})
+	require.Equal(t, 401, rr.Code)
+}
+
+func TestAccess_AllowReset_KillConnection(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.AuthDefault = user.PermissionDenyAll
+	s := newTestServer(t, c)
+	defer s.closeDatabases()
+
+	// User and admin, grant access to "gol*" topics
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleAdmin))
+	require.Nil(t, s.userManager.AddUser("ben", "ben", user.RoleUser))
+	require.Nil(t, s.userManager.AllowAccess("ben", "gol*", user.PermissionRead)) // Wildcard!
+
+	start, timeTaken := time.Now(), atomic.Int64{}
+	go func() {
+		rr := request(t, s, "GET", "/gold/json", "", map[string]string{
+			"Authorization": util.BasicAuth("ben", "ben"),
+		})
+		require.Equal(t, 200, rr.Code)
+		timeTaken.Store(time.Since(start).Milliseconds())
+	}()
+	time.Sleep(500 * time.Millisecond)
+
+	// Reset access
+	rr := request(t, s, "DELETE", "/v1/users/access", `{"username": "ben", "topic":"gol*"}`, map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, rr.Code)
+
+	// Wait for connection to be killed; this will fail if the connection is never killed
+	waitFor(t, func() bool {
+		return timeTaken.Load() >= 500
+	})
+}

server/server_manager.go

@@ -2,6 +2,7 @@ package server
 
 import (
 	"heckel.io/ntfy/log"
+	"heckel.io/ntfy/util"
 	"strings"
 )
 
@@ -34,16 +35,20 @@ func (s *Server) execManager() {
 			s.mu.Lock()
 			defer s.mu.Unlock()
 			for _, t := range s.topics {
-				subs := t.SubscribersCount()
-				log.Tag(tagManager).With(t).Trace("- topic %s: %d subscribers", t.ID, subs)
-				msgs, exists := messageCounts[t.ID]
-				if t.Stale() && (!exists || msgs == 0) {
-					log.Tag(tagManager).With(t).Trace("Deleting empty topic %s", t.ID)
+				subs, lastAccess := t.Stats()
+				ev := log.Tag(tagManager).With(t)
+				if t.Stale() {
+					if ev.IsTrace() {
+						ev.Trace("- topic %s: Deleting stale topic (%d subscribers, accessed %s)", t.ID, subs, util.FormatTime(lastAccess))
+					}
 					emptyTopics++
 					delete(s.topics, t.ID)
-					continue
+				} else {
+					if ev.IsTrace() {
+						ev.Trace("- topic %s: %d subscribers, accessed %s", t.ID, subs, util.FormatTime(lastAccess))
+					}
+					subscribers += subs
 				}
-				subscribers += subs
 			}
 		}).
 		Debug("Removed %d empty topic(s)", emptyTopics)
@@ -58,10 +63,24 @@ func (s *Server) execManager() {
 		sentMailTotal, sentMailSuccess, sentMailFailure = s.smtpSender.Counts()
 	}
 
+	// Users
+	var usersCount int64
+	if s.userManager != nil {
+		usersCount, err = s.userManager.UsersCount()
+		if err != nil {
+			log.Tag(tagManager).Err(err).Warn("Error counting users")
+		}
+	}
+
 	// Print stats
-	s.mu.Lock()
+	s.mu.RLock()
 	messagesCount, topicsCount, visitorsCount := s.messages, len(s.topics), len(s.visitors)
-	s.mu.Unlock()
+	s.mu.RUnlock()
+
+	// Update stats
+	s.updateAndWriteStats(messagesCount)
+
+	// Log stats
 	log.
 		Tag(tagManager).
 		Fields(log.Context{
@@ -70,6 +89,7 @@ func (s *Server) execManager() {
 			"topics_active":           topicsCount,
 			"subscribers":             subscribers,
 			"visitors":                visitorsCount,
+			"users":                   usersCount,
 			"emails_received":         receivedMailTotal,
 			"emails_received_success": receivedMailSuccess,
 			"emails_received_failure": receivedMailFailure,
@@ -78,6 +98,11 @@ func (s *Server) execManager() {
 			"emails_sent_failure":     sentMailFailure,
 		}).
 		Info("Server stats")
+	mset(metricMessagesCached, messagesCached)
+	mset(metricVisitors, visitorsCount)
+	mset(metricUsers, usersCount)
+	mset(metricSubscribers, subscribers)
+	mset(metricTopics, topicsCount)
 }
 
 func (s *Server) pruneVisitors() {

server/server_matrix.go

@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"strings"
+	"time"
 )
 
 // Matrix Push Gateway / UnifiedPush / ntfy integration:
@@ -71,6 +72,14 @@ type matrixResponse struct {
 	Rejected []string `json:"rejected"`
 }
 
+const (
+	// matrixRejectPushKeyForUnifiedPushTopicWithoutRateVisitorAfter is the time after which a Matrix response
+	// will return an HTTP 200 with the push key (i.e. "rejected":["<pushkey>"]}), if no rate visitor has been set on
+	// the topic. Rejecting the push key will instruct the Matrix server to invalidate the pushkey and stop sending
+	// messages to it. This must be longer than topicExpungeAfter. See https://spec.matrix.org/v1.6/push-gateway-api/
+	matrixRejectPushKeyForUnifiedPushTopicWithoutRateVisitorAfter = 12 * time.Hour
+)
+
 // errMatrixPushkeyRejected represents an error when handing Matrix gateway messages
 //
 // If the push key is set, the app server will remove it and will never send messages using the same
@@ -126,6 +135,9 @@ func newRequestFromMatrixJSON(r *http.Request, baseURL string, messageLimit int)
 	if r.Header.Get("X-Forwarded-For") != "" {
 		newRequest.Header.Set("X-Forwarded-For", r.Header.Get("X-Forwarded-For"))
 	}
+	newRequest = withContext(newRequest, map[contextKey]any{
+		contextMatrixPushKey: pushKey,
+	})
 	return newRequest, nil
 }
 

server/server_metrics.go

@@ -0,0 +1,132 @@
+package server
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+var (
+	metricMessagesPublishedSuccess     prometheus.Counter
+	metricMessagesPublishedFailure     prometheus.Counter
+	metricMessagesCached               prometheus.Gauge
+	metricMessagePublishDurationMillis prometheus.Gauge
+	metricFirebasePublishedSuccess     prometheus.Counter
+	metricFirebasePublishedFailure     prometheus.Counter
+	metricEmailsPublishedSuccess       prometheus.Counter
+	metricEmailsPublishedFailure       prometheus.Counter
+	metricEmailsReceivedSuccess        prometheus.Counter
+	metricEmailsReceivedFailure        prometheus.Counter
+	metricCallsMadeSuccess             prometheus.Counter
+	metricCallsMadeFailure             prometheus.Counter
+	metricUnifiedPushPublishedSuccess  prometheus.Counter
+	metricMatrixPublishedSuccess       prometheus.Counter
+	metricMatrixPublishedFailure       prometheus.Counter
+	metricAttachmentsTotalSize         prometheus.Gauge
+	metricVisitors                     prometheus.Gauge
+	metricSubscribers                  prometheus.Gauge
+	metricTopics                       prometheus.Gauge
+	metricUsers                        prometheus.Gauge
+	metricHTTPRequests                 *prometheus.CounterVec
+)
+
+func initMetrics() {
+	metricMessagesPublishedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_messages_published_success",
+	})
+	metricMessagesPublishedFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_messages_published_failure",
+	})
+	metricMessagesCached = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_messages_cached_total",
+	})
+	metricMessagePublishDurationMillis = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_message_publish_duration_ms",
+	})
+	metricFirebasePublishedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_firebase_published_success",
+	})
+	metricFirebasePublishedFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_firebase_published_failure",
+	})
+	metricEmailsPublishedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_emails_sent_success",
+	})
+	metricEmailsPublishedFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_emails_sent_failure",
+	})
+	metricEmailsReceivedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_emails_received_success",
+	})
+	metricEmailsReceivedFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_emails_received_failure",
+	})
+	metricCallsMadeSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_calls_made_success",
+	})
+	metricCallsMadeFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_calls_made_failure",
+	})
+	metricUnifiedPushPublishedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_unifiedpush_published_success",
+	})
+	metricMatrixPublishedSuccess = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_matrix_published_success",
+	})
+	metricMatrixPublishedFailure = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "ntfy_matrix_published_failure",
+	})
+	metricAttachmentsTotalSize = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_attachments_total_size",
+	})
+	metricVisitors = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_visitors_total",
+	})
+	metricUsers = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_users_total",
+	})
+	metricSubscribers = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_subscribers_total",
+	})
+	metricTopics = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "ntfy_topics_total",
+	})
+	metricHTTPRequests = prometheus.NewCounterVec(prometheus.CounterOpts{
+		Name: "ntfy_http_requests_total",
+	}, []string{"http_code", "ntfy_code", "http_method"})
+	prometheus.MustRegister(
+		metricMessagesPublishedSuccess,
+		metricMessagesPublishedFailure,
+		metricMessagesCached,
+		metricMessagePublishDurationMillis,
+		metricFirebasePublishedSuccess,
+		metricFirebasePublishedFailure,
+		metricEmailsPublishedSuccess,
+		metricEmailsPublishedFailure,
+		metricEmailsReceivedSuccess,
+		metricEmailsReceivedFailure,
+		metricCallsMadeSuccess,
+		metricCallsMadeFailure,
+		metricUnifiedPushPublishedSuccess,
+		metricMatrixPublishedSuccess,
+		metricMatrixPublishedFailure,
+		metricAttachmentsTotalSize,
+		metricVisitors,
+		metricUsers,
+		metricSubscribers,
+		metricTopics,
+		metricHTTPRequests,
+	)
+}
+
+// minc increments a prometheus.Counter if it is non-nil
+func minc(counter prometheus.Counter) {
+	if counter != nil {
+		counter.Inc()
+	}
+}
+
+// mset sets a prometheus.Gauge if it is non-nil
+func mset[T int | int64 | float64](gauge prometheus.Gauge, value T) {
+	if gauge != nil {
+		gauge.Set(float64(value))
+	}
+}

server/server_middleware.go

@@ -11,6 +11,7 @@ type contextKey int
 const (
 	contextRateVisitor contextKey = iota + 2586
 	contextTopic
+	contextMatrixPushKey
 )
 
 func (s *Server) limitRequests(next handleFunc) handleFunc {
@@ -50,7 +51,7 @@ func (s *Server) limitRequestsWithTopic(next handleFunc) handleFunc {
 
 func (s *Server) ensureWebEnabled(next handleFunc) handleFunc {
 	return func(w http.ResponseWriter, r *http.Request, v *visitor) error {
-		if !s.config.EnableWeb {
+		if s.config.WebRoot == "" {
 			return errHTTPNotFound
 		}
 		return next(w, r, v)
@@ -75,6 +76,24 @@ func (s *Server) ensureUser(next handleFunc) handleFunc {
 	})
 }
 
+func (s *Server) ensureAdmin(next handleFunc) handleFunc {
+	return s.ensureUserManager(func(w http.ResponseWriter, r *http.Request, v *visitor) error {
+		if !v.User().IsAdmin() {
+			return errHTTPUnauthorized
+		}
+		return next(w, r, v)
+	})
+}
+
+func (s *Server) ensureCallsEnabled(next handleFunc) handleFunc {
+	return func(w http.ResponseWriter, r *http.Request, v *visitor) error {
+		if s.config.TwilioAccount == "" || s.userManager == nil {
+			return errHTTPNotFound
+		}
+		return next(w, r, v)
+	}
+}
+
 func (s *Server) ensurePaymentsEnabled(next handleFunc) handleFunc {
 	return func(w http.ResponseWriter, r *http.Request, v *visitor) error {
 		if s.config.StripeSecretKey == "" || s.stripe == nil {

server/server_payments.go

@@ -68,6 +68,7 @@ func (s *Server) handleBillingTiersGet(w http.ResponseWriter, _ *http.Request, _
 				Messages:                 freeTier.MessageLimit,
 				MessagesExpiryDuration:   int64(freeTier.MessageExpiryDuration.Seconds()),
 				Emails:                   freeTier.EmailLimit,
+				Calls:                    freeTier.CallLimit,
 				Reservations:             freeTier.ReservationsLimit,
 				AttachmentTotalSize:      freeTier.AttachmentTotalSizeLimit,
 				AttachmentFileSize:       freeTier.AttachmentFileSizeLimit,
@@ -96,6 +97,7 @@ func (s *Server) handleBillingTiersGet(w http.ResponseWriter, _ *http.Request, _
 				Messages:                 tier.MessageLimit,
 				MessagesExpiryDuration:   int64(tier.MessageExpiryDuration.Seconds()),
 				Emails:                   tier.EmailLimit,
+				Calls:                    tier.CallLimit,
 				Reservations:             tier.ReservationLimit,
 				AttachmentTotalSize:      tier.AttachmentTotalSizeLimit,
 				AttachmentFileSize:       tier.AttachmentFileSizeLimit,

server/server_test.go

@@ -15,13 +15,13 @@ import (
 	"net/netip"
 	"os"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"testing"
 	"time"
 
-	"github.com/stretchr/testify/assert"
-
 	"github.com/stretchr/testify/require"
 	"heckel.io/ntfy/log"
 	"heckel.io/ntfy/util"
@@ -83,6 +83,32 @@ func TestServer_PublishWithFirebase(t *testing.T) {
 	require.Equal(t, "my first message", sender.Messages()[0].APNS.Payload.CustomData["message"])
 }
 
+func TestServer_PublishWithFirebase_WithoutUsers_AndWithoutPanic(t *testing.T) {
+	// This tests issue #641, which used to panic before the fix
+
+	firebaseKeyFile := filepath.Join(t.TempDir(), "firebase.json")
+	contents := `{
+  "type": "service_account",
+  "project_id": "ntfy-test",
+  "private_key_id": "fsfhskjdfhskdhfskdjfhsdf",
+  "private_key": "lalala",
+  "client_email": "firebase-adminsdk-muv04@ntfy-test.iam.gserviceaccount.com",
+  "client_id": "123123213",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://oauth2.googleapis.com/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/firebase-adminsdk-muv04%40ntfy-test.iam.gserviceaccount.com"
+}
+`
+	require.Nil(t, os.WriteFile(firebaseKeyFile, []byte(contents), 0600))
+	c := newTestConfig(t)
+	c.FirebaseKeyFile = firebaseKeyFile
+	s := newTestServer(t, c)
+
+	response := request(t, s, "PUT", "/mytopic", "my first message", nil)
+	require.Equal(t, "my first message", toMessage(t, response.Body.String()).Message)
+}
+
 func TestServer_SubscribeOpenAndKeepalive(t *testing.T) {
 	t.Parallel()
 	c := newTestConfig(t)
@@ -193,11 +219,7 @@ func TestServer_StaticSites(t *testing.T) {
 
 	rr = request(t, s, "GET", "/mytopic", "", nil)
 	require.Equal(t, 200, rr.Code)
-	require.Contains(t, rr.Body.String(), `<meta name="robots" content="noindex, nofollow"/>`)
-
-	rr = request(t, s, "GET", "/static/css/home.css", "", nil)
-	require.Equal(t, 200, rr.Code)
-	require.Contains(t, rr.Body.String(), `/* general styling */`)
+	require.Contains(t, rr.Body.String(), `<meta name="robots" content="noindex, nofollow" />`)
 
 	rr = request(t, s, "GET", "/docs", "", nil)
 	require.Equal(t, 301, rr.Code)
@@ -207,7 +229,7 @@ func TestServer_StaticSites(t *testing.T) {
 
 func TestServer_WebEnabled(t *testing.T) {
 	conf := newTestConfig(t)
-	conf.EnableWeb = false
+	conf.WebRoot = "" // Disable web app
 	s := newTestServer(t, conf)
 
 	rr := request(t, s, "GET", "/", "", nil)
@@ -220,7 +242,7 @@ func TestServer_WebEnabled(t *testing.T) {
 	require.Equal(t, 404, rr.Code)
 
 	conf2 := newTestConfig(t)
-	conf2.EnableWeb = true
+	conf2.WebRoot = "/"
 	s2 := newTestServer(t, conf2)
 
 	rr = request(t, s2, "GET", "/", "", nil)
@@ -228,9 +250,6 @@ func TestServer_WebEnabled(t *testing.T) {
 
 	rr = request(t, s2, "GET", "/config.js", "", nil)
 	require.Equal(t, 200, rr.Code)
-
-	rr = request(t, s2, "GET", "/static/css/home.css", "", nil)
-	require.Equal(t, 200, rr.Code)
 }
 
 func TestServer_PublishLargeMessage(t *testing.T) {
@@ -300,13 +319,10 @@ func TestServer_PublishNoCache(t *testing.T) {
 
 func TestServer_PublishAt(t *testing.T) {
 	t.Parallel()
-	c := newTestConfig(t)
-	c.MinDelay = time.Second
-	c.DelayedSenderInterval = 100 * time.Millisecond
-	s := newTestServer(t, c)
+	s := newTestServer(t, newTestConfig(t))
 
 	response := request(t, s, "PUT", "/mytopic", "a message", map[string]string{
-		"In": "1s",
+		"In": "1h",
 	})
 	require.Equal(t, 200, response.Code)
 
@@ -314,22 +330,62 @@ func TestServer_PublishAt(t *testing.T) {
 	messages := toMessages(t, response.Body.String())
 	require.Equal(t, 0, len(messages))
 
-	time.Sleep(time.Second)
-	require.Nil(t, s.sendDelayedMessages())
+	// Update message time to the past
+	fakeTime := time.Now().Add(-10 * time.Second).Unix()
+	_, err := s.messageCache.db.Exec(`UPDATE messages SET time=?`, fakeTime)
+	require.Nil(t, err)
 
+	// Trigger delayed message sending
+	require.Nil(t, s.sendDelayedMessages())
 	response = request(t, s, "GET", "/mytopic/json?poll=1", "", nil)
 	messages = toMessages(t, response.Body.String())
 	require.Equal(t, 1, len(messages))
 	require.Equal(t, "a message", messages[0].Message)
 	require.Equal(t, netip.Addr{}, messages[0].Sender) // Never return the sender!
 
-	messages, err := s.messageCache.Messages("mytopic", sinceAllMessages, true)
+	messages, err = s.messageCache.Messages("mytopic", sinceAllMessages, true)
 	require.Nil(t, err)
 	require.Equal(t, 1, len(messages))
 	require.Equal(t, "a message", messages[0].Message)
 	require.Equal(t, "9.9.9.9", messages[0].Sender.String()) // It's stored in the DB though!
 }
 
+func TestServer_PublishAt_FromUser(t *testing.T) {
+	t.Parallel()
+	s := newTestServer(t, newTestConfigWithAuthFile(t))
+
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleAdmin))
+	response := request(t, s, "PUT", "/mytopic", "a message", map[string]string{
+		"Authorization": util.BasicAuth("phil", "phil"),
+		"In":            "1h",
+	})
+	require.Equal(t, 200, response.Code)
+
+	// Message doesn't show up immediately
+	response = request(t, s, "GET", "/mytopic/json?poll=1", "", nil)
+	messages := toMessages(t, response.Body.String())
+	require.Equal(t, 0, len(messages))
+
+	// Update message time to the past
+	fakeTime := time.Now().Add(-10 * time.Second).Unix()
+	_, err := s.messageCache.db.Exec(`UPDATE messages SET time=?`, fakeTime)
+	require.Nil(t, err)
+
+	// Trigger delayed message sending
+	require.Nil(t, s.sendDelayedMessages())
+	response = request(t, s, "GET", "/mytopic/json?poll=1", "", nil)
+	messages = toMessages(t, response.Body.String())
+	require.Equal(t, 1, len(messages))
+	require.Equal(t, fakeTime, messages[0].Time)
+	require.Equal(t, "a message", messages[0].Message)
+
+	messages, err = s.messageCache.Messages("mytopic", sinceAllMessages, true)
+	require.Nil(t, err)
+	require.Equal(t, 1, len(messages))
+	require.Equal(t, "a message", messages[0].Message)
+	require.True(t, strings.HasPrefix(messages[0].User, "u_"))
+}
+
 func TestServer_PublishAt_Expires(t *testing.T) {
 	s := newTestServer(t, newTestConfig(t))
 
@@ -769,6 +825,7 @@ func TestServer_Auth_Fail_CannotPublish(t *testing.T) {
 
 func TestServer_Auth_Fail_Rate_Limiting(t *testing.T) {
 	c := newTestConfigWithAuthFile(t)
+	c.VisitorAuthFailureLimitBurst = 10
 	s := newTestServer(t, c)
 
 	for i := 0; i < 10; i++ {
@@ -888,7 +945,15 @@ func TestServer_StatsResetter(t *testing.T) {
 	require.Equal(t, int64(2), account.Stats.Messages)
 
 	// Wait for stats resetter to run
-	time.Sleep(2200 * time.Millisecond)
+	waitFor(t, func() bool {
+		response = request(t, s, "GET", "/v1/account", "", map[string]string{
+			"Authorization": util.BasicAuth("phil", "phil"),
+		})
+		require.Equal(t, 200, response.Code)
+		account, err = util.UnmarshalJSON[apiAccountResponse](io.NopCloser(response.Body))
+		require.Nil(t, err)
+		return account.Stats.Messages == 0
+	})
 
 	// User stats show 0 messages now!
 	response = request(t, s, "GET", "/v1/account", "", map[string]string{
@@ -1126,7 +1191,20 @@ func TestServer_PublishDelayedEmail_Fail(t *testing.T) {
 		"E-Mail": "test@example.com",
 		"Delay":  "20 min",
 	})
-	require.Equal(t, 400, response.Code)
+	require.Equal(t, 40003, toHTTPError(t, response.Body.String()).Code)
+}
+
+func TestServer_PublishDelayedCall_Fail(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+	response := request(t, s, "PUT", "/mytopic", "fail", map[string]string{
+		"Call":  "yes",
+		"Delay": "20 min",
+	})
+	require.Equal(t, 40037, toHTTPError(t, response.Body.String()).Code)
 }
 
 func TestServer_PublishEmailNoMailer_Fail(t *testing.T) {
@@ -1137,6 +1215,63 @@ func TestServer_PublishEmailNoMailer_Fail(t *testing.T) {
 	require.Equal(t, 400, response.Code)
 }
 
+func TestServer_PublishAndExpungeTopicAfter16Hours(t *testing.T) {
+	t.Parallel()
+	s := newTestServer(t, newTestConfig(t))
+
+	subFn := func(v *visitor, msg *message) error {
+		return nil
+	}
+
+	// Publish and check last access
+	response := request(t, s, "POST", "/mytopic", "test", map[string]string{
+		"Cache": "no",
+	})
+	require.Equal(t, 200, response.Code)
+	waitFor(t, func() bool {
+		// .lastAccess set in t.Publish() -> t.Keepalive() in Goroutine
+		s.topics["mytopic"].mu.RLock()
+		defer s.topics["mytopic"].mu.RUnlock()
+		return s.topics["mytopic"].lastAccess.Unix() >= time.Now().Unix()-2 &&
+			s.topics["mytopic"].lastAccess.Unix() <= time.Now().Unix()+2
+	})
+
+	// Topic won't get pruned
+	s.execManager()
+	require.NotNil(t, s.topics["mytopic"])
+
+	// Fudge with last access, but subscribe, and see that it won't get pruned (because of subscriber)
+	subID := s.topics["mytopic"].Subscribe(subFn, "", func() {})
+	s.topics["mytopic"].mu.Lock()
+	s.topics["mytopic"].lastAccess = time.Now().Add(-17 * time.Hour)
+	s.topics["mytopic"].mu.Unlock()
+	s.execManager()
+	require.NotNil(t, s.topics["mytopic"])
+
+	// It'll finally get pruned now that there are no subscribers and last access is 17 hours ago
+	s.topics["mytopic"].Unsubscribe(subID)
+	s.execManager()
+	require.Nil(t, s.topics["mytopic"])
+}
+
+func TestServer_TopicKeepaliveOnPoll(t *testing.T) {
+	t.Parallel()
+	s := newTestServer(t, newTestConfig(t))
+
+	// Create topic by polling once
+	response := request(t, s, "GET", "/mytopic/json?poll=1", "", nil)
+	require.Equal(t, 200, response.Code)
+
+	// Mess with last access time
+	s.topics["mytopic"].lastAccess = time.Now().Add(-17 * time.Hour)
+
+	// Poll again and check keepalive time
+	response = request(t, s, "GET", "/mytopic/json?poll=1", "", nil)
+	require.Equal(t, 200, response.Code)
+	require.True(t, s.topics["mytopic"].lastAccess.Unix() >= time.Now().Unix()-2)
+	require.True(t, s.topics["mytopic"].lastAccess.Unix() <= time.Now().Unix()+2)
+}
+
 func TestServer_UnifiedPushDiscovery(t *testing.T) {
 	s := newTestServer(t, newTestConfig(t))
 	response := request(t, s, "GET", "/mytopic?up=1", "", nil)
@@ -1257,13 +1392,41 @@ func TestServer_MatrixGateway_Push_Success(t *testing.T) {
 }
 
 func TestServer_MatrixGateway_Push_Failure_NoSubscriber(t *testing.T) {
-	s := newTestServer(t, newTestConfig(t))
+	c := newTestConfig(t)
+	c.VisitorSubscriberRateLimiting = true
+	s := newTestServer(t, c)
 	notification := `{"notification":{"devices":[{"pushkey":"http://127.0.0.1:12345/mytopic?up=1"}]}}`
 	response := request(t, s, "POST", "/_matrix/push/v1/notify", notification, nil)
 	require.Equal(t, 507, response.Code)
 	require.Equal(t, 50701, toHTTPError(t, response.Body.String()).Code)
 }
 
+func TestServer_MatrixGateway_Push_Failure_NoSubscriber_After13Hours(t *testing.T) {
+	c := newTestConfig(t)
+	c.VisitorSubscriberRateLimiting = true
+	s := newTestServer(t, c)
+	notification := `{"notification":{"devices":[{"pushkey":"http://127.0.0.1:12345/mytopic?up=1"}]}}`
+
+	// No success if no rate visitor set (this also creates the topic in memory)
+	response := request(t, s, "POST", "/_matrix/push/v1/notify", notification, nil)
+	require.Equal(t, 507, response.Code)
+	require.Equal(t, 50701, toHTTPError(t, response.Body.String()).Code)
+	require.Nil(t, s.topics["mytopic"].rateVisitor)
+
+	// Fake: This topic has been around for 13 hours without a rate visitor
+	s.topics["mytopic"].lastAccess = time.Now().Add(-13 * time.Hour)
+
+	// Same request should now return HTTP 200 with a rejected pushkey
+	response = request(t, s, "POST", "/_matrix/push/v1/notify", notification, nil)
+	require.Equal(t, 200, response.Code)
+	require.Equal(t, `{"rejected":["http://127.0.0.1:12345/mytopic?up=1"]}`, strings.TrimSpace(response.Body.String()))
+
+	// Slightly unrelated: Test that topic is pruned after 16 hours
+	s.topics["mytopic"].lastAccess = time.Now().Add(-17 * time.Hour)
+	s.execManager()
+	require.Nil(t, s.topics["mytopic"])
+}
+
 func TestServer_MatrixGateway_Push_Failure_InvalidPushkey(t *testing.T) {
 	s := newTestServer(t, newTestConfig(t))
 	notification := `{"notification":{"devices":[{"pushkey":"http://wrong-base-url.com/mytopic?up=1"}]}}`
@@ -1635,9 +1798,10 @@ func TestServer_PublishAttachmentAndExpire(t *testing.T) {
 	require.Equal(t, content, response.Body.String())
 
 	// Prune and makes sure it's gone
-	time.Sleep(time.Second) // Sigh ...
-	s.execManager()
-	require.NoFileExists(t, file)
+	waitFor(t, func() bool {
+		s.execManager() // May run many times
+		return !util.FileExists(file)
+	})
 	response = request(t, s, "GET", path, "", nil)
 	require.Equal(t, 404, response.Code)
 }
@@ -1947,8 +2111,8 @@ func TestServer_PublishWhileUpdatingStatsWithLotsOfMessages(t *testing.T) {
 	start = time.Now()
 	response := request(t, s, "PUT", "/mytopic", "some body", nil)
 	m := toMessage(t, response.Body.String())
-	assert.Equal(t, "some body", m.Message)
-	assert.True(t, time.Since(start) < 100*time.Millisecond)
+	require.Equal(t, "some body", m.Message)
+	require.True(t, time.Since(start) < 100*time.Millisecond)
 	log.Info("Done: Publishing message; took %s", time.Since(start).Round(time.Millisecond))
 
 	// Wait for all goroutines
@@ -1994,6 +2158,7 @@ func TestServer_AnonymousUser_And_NonTierUser_Are_Same_Visitor(t *testing.T) {
 func TestServer_SubscriberRateLimiting_Success(t *testing.T) {
 	c := newTestConfigWithAuthFile(t)
 	c.VisitorRequestLimitBurst = 3
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// "Register" visitor 1.2.3.4 to topic "subscriber1topic" as a rate limit visitor
@@ -2005,6 +2170,7 @@ func TestServer_SubscriberRateLimiting_Success(t *testing.T) {
 	}, subscriber1Fn)
 	require.Equal(t, 200, rr.Code)
 	require.Equal(t, "", rr.Body.String())
+	require.Equal(t, "1.2.3.4", s.topics["subscriber1topic"].rateVisitor.ip.String())
 
 	// "Register" visitor 8.7.7.1 to topic "up012345678912" as a rate limit visitor (implicitly via topic name)
 	subscriber2Fn := func(r *http.Request) {
@@ -2013,6 +2179,7 @@ func TestServer_SubscriberRateLimiting_Success(t *testing.T) {
 	rr = request(t, s, "GET", "/up012345678912/json?poll=1", "", nil, subscriber2Fn)
 	require.Equal(t, 200, rr.Code)
 	require.Equal(t, "", rr.Body.String())
+	require.Equal(t, "8.7.7.1", s.topics["up012345678912"].rateVisitor.ip.String())
 
 	// Publish 2 messages to "subscriber1topic" as visitor 9.9.9.9. It'd be 3 normally, but the
 	// GET request before is also counted towards the request limiter.
@@ -2044,9 +2211,47 @@ func TestServer_SubscriberRateLimiting_Success(t *testing.T) {
 	require.Equal(t, 429, rr.Code)
 }
 
+func TestServer_SubscriberRateLimiting_NotEnabled_Failed(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.VisitorRequestLimitBurst = 3
+	c.VisitorSubscriberRateLimiting = false
+	s := newTestServer(t, c)
+
+	// Subscriber rate limiting is disabled!
+
+	// Registering visitor 1.2.3.4 to topic has no effect
+	rr := request(t, s, "GET", "/subscriber1topic/json?poll=1", "", map[string]string{
+		"Rate-Topics": "subscriber1topic",
+	}, func(r *http.Request) {
+		r.RemoteAddr = "1.2.3.4"
+	})
+	require.Equal(t, 200, rr.Code)
+	require.Equal(t, "", rr.Body.String())
+	require.Nil(t, s.topics["subscriber1topic"].rateVisitor)
+
+	// Registering visitor 8.7.7.1 to topic has no effect
+	rr = request(t, s, "GET", "/up012345678912/json?poll=1", "", nil, func(r *http.Request) {
+		r.RemoteAddr = "8.7.7.1"
+	})
+	require.Equal(t, 200, rr.Code)
+	require.Equal(t, "", rr.Body.String())
+	require.Nil(t, s.topics["up012345678912"].rateVisitor)
+
+	// Publish 3 messages to "subscriber1topic" as visitor 9.9.9.9
+	for i := 0; i < 3; i++ {
+		rr := request(t, s, "PUT", "/subscriber1topic", "some message", nil)
+		require.Equal(t, 200, rr.Code)
+	}
+	rr = request(t, s, "PUT", "/subscriber1topic", "some message", nil)
+	require.Equal(t, 429, rr.Code)
+	rr = request(t, s, "PUT", "/up012345678912", "some message", nil)
+	require.Equal(t, 429, rr.Code)
+}
+
 func TestServer_SubscriberRateLimiting_UP_Only(t *testing.T) {
 	c := newTestConfigWithAuthFile(t)
 	c.VisitorRequestLimitBurst = 3
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// "Register" 5 different UnifiedPush visitors
@@ -2070,6 +2275,7 @@ func TestServer_SubscriberRateLimiting_UP_Only(t *testing.T) {
 func TestServer_Matrix_SubscriberRateLimiting_UP_Only(t *testing.T) {
 	c := newTestConfig(t)
 	c.VisitorRequestLimitBurst = 3
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// "Register" 5 different UnifiedPush visitors
@@ -2097,6 +2303,7 @@ func TestServer_Matrix_SubscriberRateLimiting_UP_Only(t *testing.T) {
 func TestServer_SubscriberRateLimiting_VisitorExpiration(t *testing.T) {
 	c := newTestConfig(t)
 	c.VisitorRequestLimitBurst = 3
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// "Register" rate visitor
@@ -2132,6 +2339,7 @@ func TestServer_SubscriberRateLimiting_VisitorExpiration(t *testing.T) {
 func TestServer_SubscriberRateLimiting_ProtectedTopics(t *testing.T) {
 	c := newTestConfigWithAuthFile(t)
 	c.AuthDefault = user.PermissionDenyAll
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// Create some ACLs
@@ -2179,6 +2387,7 @@ func TestServer_SubscriberRateLimiting_ProtectedTopics(t *testing.T) {
 func TestServer_SubscriberRateLimiting_ProtectedTopics_WithDefaultReadWrite(t *testing.T) {
 	c := newTestConfigWithAuthFile(t)
 	c.AuthDefault = user.PermissionReadWrite
+	c.VisitorSubscriberRateLimiting = true
 	s := newTestServer(t, c)
 
 	// Create some ACLs
@@ -2195,6 +2404,161 @@ func TestServer_SubscriberRateLimiting_ProtectedTopics_WithDefaultReadWrite(t *t
 	require.Nil(t, s.topics["announcements"].rateVisitor)
 }
 
+func TestServer_MessageHistoryAndStatsEndpoint(t *testing.T) {
+	c := newTestConfig(t)
+	c.ManagerInterval = 2 * time.Second
+	s := newTestServer(t, c)
+
+	// Publish some messages, and get stats
+	for i := 0; i < 5; i++ {
+		response := request(t, s, "POST", "/mytopic", "some message", nil)
+		require.Equal(t, 200, response.Code)
+	}
+	require.Equal(t, int64(5), s.messages)
+	require.Equal(t, []int64{0}, s.messagesHistory)
+
+	response := request(t, s, "GET", "/v1/stats", "", nil)
+	require.Equal(t, 200, response.Code)
+	require.Equal(t, `{"messages":5,"messages_rate":0}`+"\n", response.Body.String())
+
+	// Run manager and see message history update
+	s.execManager()
+	require.Equal(t, []int64{0, 5}, s.messagesHistory)
+
+	response = request(t, s, "GET", "/v1/stats", "", nil)
+	require.Equal(t, 200, response.Code)
+	require.Equal(t, `{"messages":5,"messages_rate":2.5}`+"\n", response.Body.String()) // 5 messages in 2 seconds = 2.5 messages per second
+
+	// Publish some more messages
+	for i := 0; i < 10; i++ {
+		response := request(t, s, "POST", "/mytopic", "some message", nil)
+		require.Equal(t, 200, response.Code)
+	}
+	require.Equal(t, int64(15), s.messages)
+	require.Equal(t, []int64{0, 5}, s.messagesHistory)
+
+	response = request(t, s, "GET", "/v1/stats", "", nil)
+	require.Equal(t, 200, response.Code)
+	require.Equal(t, `{"messages":15,"messages_rate":2.5}`+"\n", response.Body.String()) // Rate did not update yet
+
+	// Run manager and see message history update
+	s.execManager()
+	require.Equal(t, []int64{0, 5, 15}, s.messagesHistory)
+
+	response = request(t, s, "GET", "/v1/stats", "", nil)
+	require.Equal(t, 200, response.Code)
+	require.Equal(t, `{"messages":15,"messages_rate":3.75}`+"\n", response.Body.String()) // 15 messages in 4 seconds = 3.75 messages per second
+}
+
+func TestServer_MessageHistoryMaxSize(t *testing.T) {
+	s := newTestServer(t, newTestConfig(t))
+	for i := 0; i < 20; i++ {
+		s.messages = int64(i)
+		s.execManager()
+	}
+	require.Equal(t, []int64{10, 11, 12, 13, 14, 15, 16, 17, 18, 19}, s.messagesHistory)
+}
+
+func TestServer_MessageCountPersistence(t *testing.T) {
+	c := newTestConfig(t)
+	s := newTestServer(t, c)
+	s.messages = 1234
+	s.execManager()
+	waitFor(t, func() bool {
+		messages, err := s.messageCache.Stats()
+		require.Nil(t, err)
+		return messages == 1234
+	})
+
+	s = newTestServer(t, c)
+	require.Equal(t, int64(1234), s.messages)
+}
+
+func TestServer_PublishWithUTF8MimeHeader(t *testing.T) {
+	s := newTestServer(t, newTestConfig(t))
+
+	response := request(t, s, "POST", "/mytopic", "some attachment", map[string]string{
+		"X-Filename": "some =?UTF-8?q?=C3=A4?=ttachment.txt",
+		"X-Message":  "=?UTF-8?B?8J+HqfCfh6o=?=",
+		"X-Title":    "=?UTF-8?B?bnRmeSDlvojmo5I=?=, no really I mean it! =?UTF-8?Q?This is q=C3=BC=C3=B6ted-print=C3=A4ble.?=",
+		"X-Tags":     "=?UTF-8?B?8J+HqfCfh6o=?=, =?UTF-8?B?bnRmeSDlvojmo5I=?=",
+		"X-Click":    "=?uTf-8?b?aHR0cHM6Ly/wn5KpLmxh?=",
+		"X-Actions":  "http, \"=?utf-8?q?Mettre =C3=A0 jour?=\", \"https://my.tld/webhook/netbird-update\"; =?utf-8?b?aHR0cCwg6L+Z5piv5LiA5Liq5qCH562+LCBodHRwczovL/CfkqkubGE=?=",
+	})
+	require.Equal(t, 200, response.Code)
+	m := toMessage(t, response.Body.String())
+	require.Equal(t, "🇩🇪", m.Message)
+	require.Equal(t, "ntfy 很棒, no really I mean it! This is qüöted-printäble.", m.Title)
+	require.Equal(t, "some ättachment.txt", m.Attachment.Name)
+	require.Equal(t, "🇩🇪", m.Tags[0])
+	require.Equal(t, "ntfy 很棒", m.Tags[1])
+	require.Equal(t, "https://💩.la", m.Click)
+	require.Equal(t, "Mettre à jour", m.Actions[0].Label)
+	require.Equal(t, "http", m.Actions[1].Action)
+	require.Equal(t, "这是一个标签", m.Actions[1].Label)
+	require.Equal(t, "https://💩.la", m.Actions[1].URL)
+}
+
+func TestServer_UpstreamBaseURL_Success(t *testing.T) {
+	var pollID atomic.Pointer[string]
+	upstreamServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "/87c9cddf7b0105f5fe849bf084c6e600be0fde99be3223335199b4965bd7b735", r.URL.Path)
+		require.Equal(t, "", string(body))
+		require.NotEmpty(t, r.Header.Get("X-Poll-ID"))
+		pollID.Store(util.String(r.Header.Get("X-Poll-ID")))
+	}))
+	defer upstreamServer.Close()
+
+	c := newTestConfigWithAuthFile(t)
+	c.BaseURL = "http://myserver.internal"
+	c.UpstreamBaseURL = upstreamServer.URL
+	s := newTestServer(t, c)
+
+	// Send message, and wait for upstream server to receive it
+	response := request(t, s, "PUT", "/mytopic", `hi there`, nil)
+	require.Equal(t, 200, response.Code)
+	m := toMessage(t, response.Body.String())
+	require.NotEmpty(t, m.ID)
+	require.Equal(t, "hi there", m.Message)
+	waitFor(t, func() bool {
+		pID := pollID.Load()
+		return pID != nil && *pID == m.ID
+	})
+}
+
+func TestServer_UpstreamBaseURL_With_Access_Token_Success(t *testing.T) {
+	var pollID atomic.Pointer[string]
+	upstreamServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "/a1c72bcb4daf5af54d13ef86aea8f76c11e8b88320d55f1811d5d7b173bcc1df", r.URL.Path)
+		require.Equal(t, "Bearer tk_1234567890", r.Header.Get("Authorization"))
+		require.Equal(t, "", string(body))
+		require.NotEmpty(t, r.Header.Get("X-Poll-ID"))
+		pollID.Store(util.String(r.Header.Get("X-Poll-ID")))
+	}))
+	defer upstreamServer.Close()
+
+	c := newTestConfigWithAuthFile(t)
+	c.BaseURL = "http://myserver.internal"
+	c.UpstreamBaseURL = upstreamServer.URL
+	c.UpstreamAccessToken = "tk_1234567890"
+	s := newTestServer(t, c)
+
+	// Send message, and wait for upstream server to receive it
+	response := request(t, s, "PUT", "/mytopic1", `hi there`, nil)
+	require.Equal(t, 200, response.Code)
+	m := toMessage(t, response.Body.String())
+	require.NotEmpty(t, m.ID)
+	require.Equal(t, "hi there", m.Message)
+	waitFor(t, func() bool {
+		pID := pollID.Load()
+		return pID != nil && *pID == m.ID
+	})
+}
+
 func newTestConfig(t *testing.T) *Config {
 	conf := NewConfig()
 	conf.BaseURL = "http://127.0.0.1:12345"
@@ -2285,3 +2649,18 @@ func readAll(t *testing.T, rc io.ReadCloser) string {
 	}
 	return string(b)
 }
+
+func waitFor(t *testing.T, f func() bool) {
+	waitForWithMaxWait(t, 5*time.Second, f)
+}
+
+func waitForWithMaxWait(t *testing.T, maxWait time.Duration, f func() bool) {
+	start := time.Now()
+	for time.Since(start) < maxWait {
+		if f() {
+			return
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+	t.Fatalf("Function f did not succeed after %v: %v", maxWait, string(debug.Stack()))
+}

server/server_twilio.go

@@ -0,0 +1,176 @@
+package server
+
+import (
+	"bytes"
+	"encoding/xml"
+	"fmt"
+	"heckel.io/ntfy/log"
+	"heckel.io/ntfy/user"
+	"heckel.io/ntfy/util"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+const (
+	twilioCallFormat = `
+<Response>
+	<Pause length="1"/>
+	<Say loop="3">
+		You have a message from notify on topic %s. Message:
+		<break time="1s"/>
+		%s
+		<break time="1s"/>
+		End of message.
+		<break time="1s"/>
+		This message was sent by user %s. It will be repeated three times.
+		To unsubscribe from calls like this, remove your phone number in the notify web app.
+		<break time="3s"/>
+	</Say>
+	<Say>Goodbye.</Say>
+</Response>`
+)
+
+// convertPhoneNumber checks if the given phone number is verified for the given user, and if so, returns the verified
+// phone number. It also converts a boolean string ("yes", "1", "true") to the first verified phone number.
+// If the user is anonymous, it will return an error.
+func (s *Server) convertPhoneNumber(u *user.User, phoneNumber string) (string, *errHTTP) {
+	if u == nil {
+		return "", errHTTPBadRequestAnonymousCallsNotAllowed
+	}
+	phoneNumbers, err := s.userManager.PhoneNumbers(u.ID)
+	if err != nil {
+		return "", errHTTPInternalError
+	} else if len(phoneNumbers) == 0 {
+		return "", errHTTPBadRequestPhoneNumberNotVerified
+	}
+	if toBool(phoneNumber) {
+		return phoneNumbers[0], nil
+	} else if util.Contains(phoneNumbers, phoneNumber) {
+		return phoneNumber, nil
+	}
+	for _, p := range phoneNumbers {
+		if p == phoneNumber {
+			return phoneNumber, nil
+		}
+	}
+	return "", errHTTPBadRequestPhoneNumberNotVerified
+}
+
+// callPhone calls the Twilio API to make a phone call to the given phone number, using the given message.
+// Failures will be logged, but not returned to the caller.
+func (s *Server) callPhone(v *visitor, r *http.Request, m *message, to string) {
+	u, sender := v.User(), m.Sender.String()
+	if u != nil {
+		sender = u.Name
+	}
+	body := fmt.Sprintf(twilioCallFormat, xmlEscapeText(m.Topic), xmlEscapeText(m.Message), xmlEscapeText(sender))
+	data := url.Values{}
+	data.Set("From", s.config.TwilioPhoneNumber)
+	data.Set("To", to)
+	data.Set("Twiml", body)
+	ev := logvrm(v, r, m).Tag(tagTwilio).Field("twilio_to", to).FieldIf("twilio_body", body, log.TraceLevel).Debug("Sending Twilio request")
+	response, err := s.callPhoneInternal(data)
+	if err != nil {
+		ev.Field("twilio_response", response).Err(err).Warn("Error sending Twilio request")
+		minc(metricCallsMadeFailure)
+		return
+	}
+	ev.FieldIf("twilio_response", response, log.TraceLevel).Debug("Received successful Twilio response")
+	minc(metricCallsMadeSuccess)
+}
+
+func (s *Server) callPhoneInternal(data url.Values) (string, error) {
+	requestURL := fmt.Sprintf("%s/2010-04-01/Accounts/%s/Calls.json", s.config.TwilioCallsBaseURL, s.config.TwilioAccount)
+	req, err := http.NewRequest(http.MethodPost, requestURL, strings.NewReader(data.Encode()))
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("User-Agent", "ntfy/"+s.config.Version)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Authorization", util.BasicAuth(s.config.TwilioAccount, s.config.TwilioAuthToken))
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+	response, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	return string(response), nil
+}
+
+func (s *Server) verifyPhoneNumber(v *visitor, r *http.Request, phoneNumber, channel string) error {
+	ev := logvr(v, r).Tag(tagTwilio).Field("twilio_to", phoneNumber).Field("twilio_channel", channel).Debug("Sending phone verification")
+	data := url.Values{}
+	data.Set("To", phoneNumber)
+	data.Set("Channel", channel)
+	requestURL := fmt.Sprintf("%s/v2/Services/%s/Verifications", s.config.TwilioVerifyBaseURL, s.config.TwilioVerifyService)
+	req, err := http.NewRequest(http.MethodPost, requestURL, strings.NewReader(data.Encode()))
+	if err != nil {
+		return err
+	}
+	req.Header.Set("User-Agent", "ntfy/"+s.config.Version)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Authorization", util.BasicAuth(s.config.TwilioAccount, s.config.TwilioAuthToken))
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	}
+	response, err := io.ReadAll(resp.Body)
+	if err != nil {
+		ev.Err(err).Warn("Error sending Twilio phone verification request")
+		return err
+	}
+	ev.FieldIf("twilio_response", string(response), log.TraceLevel).Debug("Received Twilio phone verification response")
+	return nil
+}
+
+func (s *Server) verifyPhoneNumberCheck(v *visitor, r *http.Request, phoneNumber, code string) error {
+	ev := logvr(v, r).Tag(tagTwilio).Field("twilio_to", phoneNumber).Debug("Checking phone verification")
+	data := url.Values{}
+	data.Set("To", phoneNumber)
+	data.Set("Code", code)
+	requestURL := fmt.Sprintf("%s/v2/Services/%s/VerificationCheck", s.config.TwilioVerifyBaseURL, s.config.TwilioVerifyService)
+	req, err := http.NewRequest(http.MethodPost, requestURL, strings.NewReader(data.Encode()))
+	if err != nil {
+		return err
+	}
+	req.Header.Set("User-Agent", "ntfy/"+s.config.Version)
+	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Authorization", util.BasicAuth(s.config.TwilioAccount, s.config.TwilioAuthToken))
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return err
+	} else if resp.StatusCode != http.StatusOK {
+		if ev.IsTrace() {
+			response, err := io.ReadAll(resp.Body)
+			if err != nil {
+				return err
+			}
+			ev.Field("twilio_response", string(response))
+		}
+		ev.Warn("Twilio phone verification failed with status code %d", resp.StatusCode)
+		if resp.StatusCode == http.StatusNotFound {
+			return errHTTPGonePhoneVerificationExpired
+		}
+		return errHTTPInternalError
+	}
+	response, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	if ev.IsTrace() {
+		ev.Field("twilio_response", string(response)).Trace("Received successful Twilio phone verification response")
+	} else if ev.IsDebug() {
+		ev.Debug("Received successful Twilio phone verification response")
+	}
+	return nil
+}
+
+func xmlEscapeText(text string) string {
+	var buf bytes.Buffer
+	_ = xml.EscapeText(&buf, []byte(text))
+	return buf.String()
+}

server/server_twilio_test.go

@@ -0,0 +1,264 @@
+package server
+
+import (
+	"github.com/stretchr/testify/require"
+	"heckel.io/ntfy/user"
+	"heckel.io/ntfy/util"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"sync/atomic"
+	"testing"
+)
+
+func TestServer_Twilio_Call_Add_Verify_Call_Delete_Success(t *testing.T) {
+	var called, verified atomic.Bool
+	var code atomic.Pointer[string]
+	twilioVerifyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "Basic QUMxMjM0NTY3ODkwOkFBRUFBMTIzNDU2Nzg5MA==", r.Header.Get("Authorization"))
+		if r.URL.Path == "/v2/Services/VA1234567890/Verifications" {
+			if code.Load() != nil {
+				t.Fatal("Should be only called once")
+			}
+			require.Equal(t, "Channel=sms&To=%2B12223334444", string(body))
+			code.Store(util.String("123456"))
+		} else if r.URL.Path == "/v2/Services/VA1234567890/VerificationCheck" {
+			if verified.Load() {
+				t.Fatal("Should be only called once")
+			}
+			require.Equal(t, "Code=123456&To=%2B12223334444", string(body))
+			verified.Store(true)
+		} else {
+			t.Fatal("Unexpected path:", r.URL.Path)
+		}
+	}))
+	defer twilioVerifyServer.Close()
+	twilioCallsServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if called.Load() {
+			t.Fatal("Should be only called once")
+		}
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "/2010-04-01/Accounts/AC1234567890/Calls.json", r.URL.Path)
+		require.Equal(t, "Basic QUMxMjM0NTY3ODkwOkFBRUFBMTIzNDU2Nzg5MA==", r.Header.Get("Authorization"))
+		require.Equal(t, "From=%2B1234567890&To=%2B12223334444&Twiml=%0A%3CResponse%3E%0A%09%3CPause+length%3D%221%22%2F%3E%0A%09%3CSay+loop%3D%223%22%3E%0A%09%09You+have+a+message+from+notify+on+topic+mytopic.+Message%3A%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09hi+there%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09End+of+message.%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09This+message+was+sent+by+user+phil.+It+will+be+repeated+three+times.%0A%09%09To+unsubscribe+from+calls+like+this%2C+remove+your+phone+number+in+the+notify+web+app.%0A%09%09%3Cbreak+time%3D%223s%22%2F%3E%0A%09%3C%2FSay%3E%0A%09%3CSay%3EGoodbye.%3C%2FSay%3E%0A%3C%2FResponse%3E", string(body))
+		called.Store(true)
+	}))
+	defer twilioCallsServer.Close()
+
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioVerifyBaseURL = twilioVerifyServer.URL
+	c.TwilioCallsBaseURL = twilioCallsServer.URL
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	c.TwilioVerifyService = "VA1234567890"
+	s := newTestServer(t, c)
+
+	// Add tier and user
+	require.Nil(t, s.userManager.AddTier(&user.Tier{
+		Code:         "pro",
+		MessageLimit: 10,
+		CallLimit:    1,
+	}))
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleUser))
+	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
+	u, err := s.userManager.User("phil")
+	require.Nil(t, err)
+
+	// Send verification code for phone number
+	response := request(t, s, "PUT", "/v1/account/phone/verify", `{"number":"+12223334444","channel":"sms"}`, map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, response.Code)
+	waitFor(t, func() bool {
+		return *code.Load() == "123456"
+	})
+
+	// Add phone number with code
+	response = request(t, s, "PUT", "/v1/account/phone", `{"number":"+12223334444","code":"123456"}`, map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, response.Code)
+	waitFor(t, func() bool {
+		return verified.Load()
+	})
+	phoneNumbers, err := s.userManager.PhoneNumbers(u.ID)
+	require.Nil(t, err)
+	require.Equal(t, 1, len(phoneNumbers))
+	require.Equal(t, "+12223334444", phoneNumbers[0])
+
+	// Do the thing
+	response = request(t, s, "POST", "/mytopic", "hi there", map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+		"x-call":        "yes",
+	})
+	require.Equal(t, "hi there", toMessage(t, response.Body.String()).Message)
+	waitFor(t, func() bool {
+		return called.Load()
+	})
+
+	// Remove the phone number
+	response = request(t, s, "DELETE", "/v1/account/phone", `{"number":"+12223334444"}`, map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+	})
+	require.Equal(t, 200, response.Code)
+
+	// Verify the phone number is gone from the DB
+	phoneNumbers, err = s.userManager.PhoneNumbers(u.ID)
+	require.Nil(t, err)
+	require.Equal(t, 0, len(phoneNumbers))
+}
+
+func TestServer_Twilio_Call_Success(t *testing.T) {
+	var called atomic.Bool
+	twilioServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if called.Load() {
+			t.Fatal("Should be only called once")
+		}
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "/2010-04-01/Accounts/AC1234567890/Calls.json", r.URL.Path)
+		require.Equal(t, "Basic QUMxMjM0NTY3ODkwOkFBRUFBMTIzNDU2Nzg5MA==", r.Header.Get("Authorization"))
+		require.Equal(t, "From=%2B1234567890&To=%2B11122233344&Twiml=%0A%3CResponse%3E%0A%09%3CPause+length%3D%221%22%2F%3E%0A%09%3CSay+loop%3D%223%22%3E%0A%09%09You+have+a+message+from+notify+on+topic+mytopic.+Message%3A%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09hi+there%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09End+of+message.%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09This+message+was+sent+by+user+phil.+It+will+be+repeated+three+times.%0A%09%09To+unsubscribe+from+calls+like+this%2C+remove+your+phone+number+in+the+notify+web+app.%0A%09%09%3Cbreak+time%3D%223s%22%2F%3E%0A%09%3C%2FSay%3E%0A%09%3CSay%3EGoodbye.%3C%2FSay%3E%0A%3C%2FResponse%3E", string(body))
+		called.Store(true)
+	}))
+	defer twilioServer.Close()
+
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioCallsBaseURL = twilioServer.URL
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+
+	// Add tier and user
+	require.Nil(t, s.userManager.AddTier(&user.Tier{
+		Code:         "pro",
+		MessageLimit: 10,
+		CallLimit:    1,
+	}))
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleUser))
+	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
+	u, err := s.userManager.User("phil")
+	require.Nil(t, err)
+	require.Nil(t, s.userManager.AddPhoneNumber(u.ID, "+11122233344"))
+
+	// Do the thing
+	response := request(t, s, "POST", "/mytopic", "hi there", map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+		"x-call":        "+11122233344",
+	})
+	require.Equal(t, "hi there", toMessage(t, response.Body.String()).Message)
+	waitFor(t, func() bool {
+		return called.Load()
+	})
+}
+
+func TestServer_Twilio_Call_Success_With_Yes(t *testing.T) {
+	var called atomic.Bool
+	twilioServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if called.Load() {
+			t.Fatal("Should be only called once")
+		}
+		body, err := io.ReadAll(r.Body)
+		require.Nil(t, err)
+		require.Equal(t, "/2010-04-01/Accounts/AC1234567890/Calls.json", r.URL.Path)
+		require.Equal(t, "Basic QUMxMjM0NTY3ODkwOkFBRUFBMTIzNDU2Nzg5MA==", r.Header.Get("Authorization"))
+		require.Equal(t, "From=%2B1234567890&To=%2B11122233344&Twiml=%0A%3CResponse%3E%0A%09%3CPause+length%3D%221%22%2F%3E%0A%09%3CSay+loop%3D%223%22%3E%0A%09%09You+have+a+message+from+notify+on+topic+mytopic.+Message%3A%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09hi+there%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09End+of+message.%0A%09%09%3Cbreak+time%3D%221s%22%2F%3E%0A%09%09This+message+was+sent+by+user+phil.+It+will+be+repeated+three+times.%0A%09%09To+unsubscribe+from+calls+like+this%2C+remove+your+phone+number+in+the+notify+web+app.%0A%09%09%3Cbreak+time%3D%223s%22%2F%3E%0A%09%3C%2FSay%3E%0A%09%3CSay%3EGoodbye.%3C%2FSay%3E%0A%3C%2FResponse%3E", string(body))
+		called.Store(true)
+	}))
+	defer twilioServer.Close()
+
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioCallsBaseURL = twilioServer.URL
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+
+	// Add tier and user
+	require.Nil(t, s.userManager.AddTier(&user.Tier{
+		Code:         "pro",
+		MessageLimit: 10,
+		CallLimit:    1,
+	}))
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleUser))
+	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
+	u, err := s.userManager.User("phil")
+	require.Nil(t, err)
+	require.Nil(t, s.userManager.AddPhoneNumber(u.ID, "+11122233344"))
+
+	// Do the thing
+	response := request(t, s, "POST", "/mytopic", "hi there", map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+		"x-call":        "yes", // <<<------
+	})
+	require.Equal(t, "hi there", toMessage(t, response.Body.String()).Message)
+	waitFor(t, func() bool {
+		return called.Load()
+	})
+}
+
+func TestServer_Twilio_Call_UnverifiedNumber(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioCallsBaseURL = "http://dummy.invalid"
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+
+	// Add tier and user
+	require.Nil(t, s.userManager.AddTier(&user.Tier{
+		Code:         "pro",
+		MessageLimit: 10,
+		CallLimit:    1,
+	}))
+	require.Nil(t, s.userManager.AddUser("phil", "phil", user.RoleUser))
+	require.Nil(t, s.userManager.ChangeTier("phil", "pro"))
+
+	// Do the thing
+	response := request(t, s, "POST", "/mytopic", "test", map[string]string{
+		"authorization": util.BasicAuth("phil", "phil"),
+		"x-call":        "+11122233344",
+	})
+	require.Equal(t, 40034, toHTTPError(t, response.Body.String()).Code)
+}
+
+func TestServer_Twilio_Call_InvalidNumber(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioCallsBaseURL = "https://127.0.0.1"
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+
+	response := request(t, s, "POST", "/mytopic", "test", map[string]string{
+		"x-call": "+invalid",
+	})
+	require.Equal(t, 40033, toHTTPError(t, response.Body.String()).Code)
+}
+
+func TestServer_Twilio_Call_Anonymous(t *testing.T) {
+	c := newTestConfigWithAuthFile(t)
+	c.TwilioCallsBaseURL = "https://127.0.0.1"
+	c.TwilioAccount = "AC1234567890"
+	c.TwilioAuthToken = "AAEAA1234567890"
+	c.TwilioPhoneNumber = "+1234567890"
+	s := newTestServer(t, c)
+
+	response := request(t, s, "POST", "/mytopic", "test", map[string]string{
+		"x-call": "+123123",
+	})
+	require.Equal(t, 40035, toHTTPError(t, response.Body.String()).Code)
+}
+
+func TestServer_Twilio_Call_Unconfigured(t *testing.T) {
+	s := newTestServer(t, newTestConfig(t))
+	response := request(t, s, "POST", "/mytopic", "test", map[string]string{
+		"x-call": "+1234",
+	})
+	require.Equal(t, 40032, toHTTPError(t, response.Body.String()).Code)
+}

server/smtp_sender.go

@@ -4,14 +4,15 @@ import (
 	_ "embed" // required by go:embed
 	"encoding/json"
 	"fmt"
-	"heckel.io/ntfy/log"
-	"heckel.io/ntfy/util"
 	"mime"
 	"net"
 	"net/smtp"
 	"strings"
 	"sync"
 	"time"
+
+	"heckel.io/ntfy/log"
+	"heckel.io/ntfy/util"
 )
 
 type mailer interface {
@@ -36,7 +37,10 @@ func (s *smtpSender) Send(v *visitor, m *message, to string) error {
 		if err != nil {
 			return err
 		}
-		auth := smtp.PlainAuth("", s.config.SMTPSenderUser, s.config.SMTPSenderPass, host)
+		var auth smtp.Auth
+		if s.config.SMTPSenderUser != "" {
+			auth = smtp.PlainAuth("", s.config.SMTPSenderUser, s.config.SMTPSenderPass, host)
+		}
 		ev := logvm(v, m).
 			Tag(tagEmail).
 			Fields(log.Context{
@@ -128,31 +132,23 @@ This message was sent by {ip} at {time} via {topicURL}`
 }
 
 var (
-	//go:embed "mailer_emoji.json"
+	//go:embed "mailer_emoji_map.json"
 	emojisJSON string
 )
 
-type emoji struct {
-	Emoji   string   `json:"emoji"`
-	Aliases []string `json:"aliases"`
-}
-
 func toEmojis(tags []string) (emojisOut []string, tagsOut []string, err error) {
-	var emojis []emoji
-	if err = json.Unmarshal([]byte(emojisJSON), &emojis); err != nil {
+	var emojiMap map[string]string
+	if err = json.Unmarshal([]byte(emojisJSON), &emojiMap); err != nil {
 		return nil, nil, err
 	}
 	tagsOut = make([]string, 0)
 	emojisOut = make([]string, 0)
-nextTag:
-	for _, t := range tags { // TODO Super inefficient; we should just create a .json file with a map
-		for _, e := range emojis {
-			if util.Contains(e.Aliases, t) {
-				emojisOut = append(emojisOut, e.Emoji)
-				continue nextTag
-			}
+	for _, t := range tags {
+		if emoji, ok := emojiMap[t]; ok {
+			emojisOut = append(emojisOut, emoji)
+		} else {
+			tagsOut = append(tagsOut, t)
 		}
-		tagsOut = append(tagsOut, t)
 	}
 	return
 }

server/smtp_server.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"mime"
 	"mime/multipart"
+	"mime/quotedprintable"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -165,6 +166,7 @@ func (s *smtpSession) Data(r io.Reader) error {
 		s.backend.mu.Lock()
 		s.backend.success++
 		s.backend.mu.Unlock()
+		minc(metricEmailsReceivedSuccess)
 		return nil
 	})
 }
@@ -217,6 +219,7 @@ func (s *smtpSession) withFailCount(fn func() error) error {
 		// We do not want to spam the log with WARN messages.
 		logem(s.conn).Err(err).Debug("Incoming mail error")
 		s.backend.failure++
+		minc(metricEmailsReceivedFailure)
 	}
 	return err
 }
@@ -263,6 +266,8 @@ func readMultipartMailBody(body io.Reader, params map[string]string, depth int)
 func readPlainTextMailBody(reader io.Reader, transferEncoding string) (string, error) {
 	if strings.ToLower(transferEncoding) == "base64" {
 		reader = base64.NewDecoder(base64.StdEncoding, reader)
+	} else if strings.ToLower(transferEncoding) == "quoted-printable" {
+		reader = quotedprintable.NewReader(reader)
 	}
 	body, err := io.ReadAll(reader)
 	if err != nil {

server/smtp_server_test.go

@@ -303,6 +303,39 @@ BBBBBBBBBBBBBBBBBBBBBBBBB`
 	writeAndReadUntilLine(t, email, c, scanner, "250 2.0.0 OK: queued")
 }
 
+func TestSmtpBackend_Plaintext_QuotedPrintable(t *testing.T) {
+	email := `EHLO example.com
+MAIL FROM: phil@example.com
+RCPT TO: mytopic@ntfy.sh
+DATA
+Date: Tue, 28 Dec 2021 00:30:10 +0100
+Message-ID: <CAAvm79YP0C=Rt1N=KWmSUBB87KK2rRChmdzKqF1vCwMEUiVzLQ@mail.gmail.com>
+Subject: and one more
+From: Phil <phil@example.com>
+To: mytopic@ntfy.sh
+Content-Type: text/plain; charset="UTF-8"
+Content-Transfer-Encoding: quoted-printable
+
+what's
+=C3=A0&=C3=A9"'(-=C3=A8_=C3=A7=C3=A0)
+=3D=3D=3D=3D=3D
+up
+.
+`
+	s, c, conf, scanner := newTestSMTPServer(t, func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "and one more", r.Header.Get("Title"))
+		require.Equal(t, `what's
+à&é"'(-è_çà)
+=====
+up`, readAll(t, r.Body))
+	})
+	conf.SMTPServerAddrPrefix = ""
+	defer s.Close()
+	defer c.Close()
+	writeAndReadUntilLine(t, email, c, scanner, "250 2.0.0 OK: queued")
+}
+
 func TestSmtpBackend_Unsupported(t *testing.T) {
 	email := `EHLO example.com
 MAIL FROM: phil@example.com
@@ -390,6 +423,49 @@ L0VOIj4KClRoaXMgaXMgYSB0ZXN0IG1lc3NhZ2UgZnJvbSBUcnVlTkFTIENPUkUuCg==
 	writeAndReadUntilLine(t, email, c, scanner, "250 2.0.0 OK: queued")
 }
 
+func TestSmtpBackend_MultipartQuotedPrintable(t *testing.T) {
+	email := `EHLO example.com
+MAIL FROM: phil@example.com
+RCPT TO: ntfy-mytopic@ntfy.sh
+DATA
+MIME-Version: 1.0
+Date: Tue, 28 Dec 2021 00:30:10 +0100
+Message-ID: <CAAvm79YP0C=Rt1N=KWmSUBB87KK2rRChmdzKqF1vCwMEUiVzLQ@mail.gmail.com>
+Subject: and one more
+From: Phil <phil@example.com>
+To: ntfy-mytopic@ntfy.sh
+Content-Type: multipart/alternative; boundary="000000000000f3320b05d42915c9"
+
+--000000000000f3320b05d42915c9
+Content-Type: text/html; charset="UTF-8"
+
+html, ignore me
+
+--000000000000f3320b05d42915c9
+Content-Type: text/plain; charset="UTF-8"
+Content-Transfer-Encoding: quoted-printable
+
+what's
+=C3=A0&=C3=A9"'(-=C3=A8_=C3=A7=C3=A0)
+=3D=3D=3D=3D=3D
+up
+
+--000000000000f3320b05d42915c9--
+.
+`
+	s, c, _, scanner := newTestSMTPServer(t, func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(t, "/mytopic", r.URL.Path)
+		require.Equal(t, "and one more", r.Header.Get("Title"))
+		require.Equal(t, `what's
+à&é"'(-è_çà)
+=====
+up`, readAll(t, r.Body))
+	})
+	defer s.Close()
+	defer c.Close()
+	writeAndReadUntilLine(t, email, c, scanner, "250 2.0.0 OK: queued")
+}
+
 func TestSmtpBackend_NestedMultipartBase64(t *testing.T) {
 	email := `EHLO example.com
 MAIL FROM: test@mydomain.me

server/topic.go

@@ -1,9 +1,19 @@
 package server
 
 import (
-	"heckel.io/ntfy/log"
 	"math/rand"
 	"sync"
+	"time"
+
+	"heckel.io/ntfy/log"
+	"heckel.io/ntfy/util"
+)
+
+const (
+	// topicExpungeAfter defines how long a topic is active before it is removed from memory.
+	// This must be larger than matrixRejectPushKeyForUnifiedPushTopicWithoutRateVisitorAfter to give
+	// time for more requests to come in, so that we can send a {"rejected":["<pushkey>"]} response back.
+	topicExpungeAfter = 16 * time.Hour
 )
 
 // topic represents a channel to which subscribers can subscribe, and publishers
@@ -12,6 +22,7 @@ type topic struct {
 	ID          string
 	subscribers map[int]*topicSubscriber
 	rateVisitor *visitor
+	lastAccess  time.Time
 	mu          sync.RWMutex
 }
 
@@ -29,19 +40,27 @@ func newTopic(id string) *topic {
 	return &topic{
 		ID:          id,
 		subscribers: make(map[int]*topicSubscriber),
+		lastAccess:  time.Now(),
 	}
 }
 
 // Subscribe subscribes to this topic
-func (t *topic) Subscribe(s subscriber, userID string, cancel func()) int {
+func (t *topic) Subscribe(s subscriber, userID string, cancel func()) (subscriberID int) {
 	t.mu.Lock()
 	defer t.mu.Unlock()
-	subscriberID := rand.Int()
+	for i := 0; i < 5; i++ { // Best effort retry
+		subscriberID = rand.Int()
+		_, exists := t.subscribers[subscriberID]
+		if !exists {
+			break
+		}
+	}
 	t.subscribers[subscriberID] = &topicSubscriber{
 		userID:     userID, // May be empty
 		subscriber: s,
 		cancel:     cancel,
 	}
+	t.lastAccess = time.Now()
 	return subscriberID
 }
 
@@ -51,13 +70,20 @@ func (t *topic) Stale() bool {
 	if t.rateVisitor != nil && !t.rateVisitor.Stale() {
 		return false
 	}
-	return len(t.subscribers) == 0
+	return len(t.subscribers) == 0 && time.Since(t.lastAccess) > topicExpungeAfter
+}
+
+func (t *topic) LastAccess() time.Time {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	return t.lastAccess
 }
 
 func (t *topic) SetRateVisitor(v *visitor) {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	t.rateVisitor = v
+	t.lastAccess = time.Now()
 }
 
 func (t *topic) RateVisitor() *visitor {
@@ -96,41 +122,66 @@ func (t *topic) Publish(v *visitor, m *message) error {
 		} else {
 			logvm(v, m).Tag(tagPublish).Trace("No stream or WebSocket subscribers, not forwarding")
 		}
+		t.Keepalive()
 	}()
 	return nil
 }
 
-// SubscribersCount returns the number of subscribers to this topic
-func (t *topic) SubscribersCount() int {
+// Stats returns the number of subscribers and last access to this topic
+func (t *topic) Stats() (int, time.Time) {
 	t.mu.RLock()
 	defer t.mu.RUnlock()
-	return len(t.subscribers)
+	return len(t.subscribers), t.lastAccess
 }
 
-// CancelSubscribers calls the cancel function for all subscribers, forcing
-func (t *topic) CancelSubscribers(exceptUserID string) {
+// Keepalive sets the last access time and ensures that Stale does not return true
+func (t *topic) Keepalive() {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.lastAccess = time.Now()
+}
+
+// CancelSubscribersExceptUser calls the cancel function for all subscribers, forcing
+func (t *topic) CancelSubscribersExceptUser(exceptUserID string) {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	for _, s := range t.subscribers {
 		if s.userID != exceptUserID {
-			log.
-				Tag(tagSubscribe).
-				With(t).
-				Fields(log.Context{
-					"user_id": s.userID,
-				}).
-				Debug("Canceling subscriber %s", s.userID)
-			s.cancel()
+			t.cancelUserSubscriber(s)
 		}
 	}
 }
 
+// CancelSubscriberUser kills the subscriber with the given user ID
+func (t *topic) CancelSubscriberUser(userID string) {
+	t.mu.RLock()
+	defer t.mu.RUnlock()
+	for _, s := range t.subscribers {
+		if s.userID == userID {
+			t.cancelUserSubscriber(s)
+			return
+		}
+	}
+}
+
+func (t *topic) cancelUserSubscriber(s *topicSubscriber) {
+	log.
+		Tag(tagSubscribe).
+		With(t).
+		Fields(log.Context{
+			"user_id": s.userID,
+		}).
+		Debug("Canceling subscriber with user ID %s", s.userID)
+	s.cancel()
+}
+
 func (t *topic) Context() log.Context {
 	t.mu.RLock()
 	defer t.mu.RUnlock()
 	fields := map[string]any{
 		"topic":             t.ID,
 		"topic_subscribers": len(t.subscribers),
+		"topic_last_access": util.FormatTime(t.lastAccess),
 	}
 	if t.rateVisitor != nil {
 		for k, v := range t.rateVisitor.Context() {

server/topic_test.go

@@ -0,0 +1,92 @@
+package server
+
+import (
+	"math/rand"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestTopic_CancelSubscribersExceptUser(t *testing.T) {
+	t.Parallel()
+
+	subFn := func(v *visitor, msg *message) error {
+		return nil
+	}
+	canceled1 := atomic.Bool{}
+	cancelFn1 := func() {
+		canceled1.Store(true)
+	}
+	canceled2 := atomic.Bool{}
+	cancelFn2 := func() {
+		canceled2.Store(true)
+	}
+	to := newTopic("mytopic")
+	to.Subscribe(subFn, "", cancelFn1)
+	to.Subscribe(subFn, "u_phil", cancelFn2)
+
+	to.CancelSubscribersExceptUser("u_phil")
+	require.True(t, canceled1.Load())
+	require.False(t, canceled2.Load())
+}
+
+func TestTopic_CancelSubscribersUser(t *testing.T) {
+	t.Parallel()
+
+	subFn := func(v *visitor, msg *message) error {
+		return nil
+	}
+	canceled1 := atomic.Bool{}
+	cancelFn1 := func() {
+		canceled1.Store(true)
+	}
+	canceled2 := atomic.Bool{}
+	cancelFn2 := func() {
+		canceled2.Store(true)
+	}
+	to := newTopic("mytopic")
+	to.Subscribe(subFn, "u_another", cancelFn1)
+	to.Subscribe(subFn, "u_phil", cancelFn2)
+
+	to.CancelSubscriberUser("u_phil")
+	require.False(t, canceled1.Load())
+	require.True(t, canceled2.Load())
+}
+
+func TestTopic_Keepalive(t *testing.T) {
+	t.Parallel()
+
+	to := newTopic("mytopic")
+	to.lastAccess = time.Now().Add(-1 * time.Hour)
+	to.Keepalive()
+	require.True(t, to.LastAccess().Unix() >= time.Now().Unix()-2)
+	require.True(t, to.LastAccess().Unix() <= time.Now().Unix()+2)
+}
+
+func TestTopic_Subscribe_DuplicateID(t *testing.T) {
+	t.Parallel()
+	to := newTopic("mytopic")
+
+	// Fix random seed to force same number generation
+	rand.Seed(1)
+	a := rand.Int()
+	to.subscribers[a] = &topicSubscriber{
+		userID:     "a",
+		subscriber: nil,
+		cancel:     func() {},
+	}
+
+	subFn := func(v *visitor, msg *message) error {
+		return nil
+	}
+
+	// Force rand.Int to generate the same id once more
+	rand.Seed(1)
+	id := to.Subscribe(subFn, "b", func() {})
+	res := to.subscribers[id]
+
+	require.NotEqual(t, id, a)
+	require.Equal(t, "b", res.userID, "b")
+}

server/types.go

@@ -101,6 +101,7 @@ type publishMessage struct {
 	Attach   string   `json:"attach"`
 	Filename string   `json:"filename"`
 	Email    string   `json:"email"`
+	Call     string   `json:"call"`
 	Delay    string   `json:"delay"`
 }
 
@@ -239,6 +240,45 @@ type apiHealthResponse struct {
 	Healthy bool `json:"healthy"`
 }
 
+type apiStatsResponse struct {
+	Messages     int64   `json:"messages"`
+	MessagesRate float64 `json:"messages_rate"` // Average number of messages per second
+}
+
+type apiUserAddRequest struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+	Tier     string `json:"tier"`
+	// Do not add 'role' here. We don't want to add admins via the API.
+}
+
+type apiUserResponse struct {
+	Username string                  `json:"username"`
+	Role     string                  `json:"role"`
+	Tier     string                  `json:"tier,omitempty"`
+	Grants   []*apiUserGrantResponse `json:"grants,omitempty"`
+}
+
+type apiUserGrantResponse struct {
+	Topic      string `json:"topic"` // This may be a pattern
+	Permission string `json:"permission"`
+}
+
+type apiUserDeleteRequest struct {
+	Username string `json:"username"`
+}
+
+type apiAccessAllowRequest struct {
+	Username   string `json:"username"`
+	Topic      string `json:"topic"` // This may be a pattern
+	Permission string `json:"permission"`
+}
+
+type apiAccessResetRequest struct {
+	Username string `json:"username"`
+	Topic    string `json:"topic"`
+}
+
 type apiAccountCreateRequest struct {
 	Username string `json:"username"`
 	Password string `json:"password"`
@@ -272,6 +312,16 @@ type apiAccountTokenResponse struct {
 	Expires    int64  `json:"expires,omitempty"` // Unix timestamp
 }
 
+type apiAccountPhoneNumberVerifyRequest struct {
+	Number  string `json:"number"`
+	Channel string `json:"channel"`
+}
+
+type apiAccountPhoneNumberAddRequest struct {
+	Number string `json:"number"`
+	Code   string `json:"code"` // Only set when adding a phone number
+}
+
 type apiAccountTier struct {
 	Code string `json:"code"`
 	Name string `json:"name"`
@@ -282,6 +332,7 @@ type apiAccountLimits struct {
 	Messages                 int64  `json:"messages"`
 	MessagesExpiryDuration   int64  `json:"messages_expiry_duration"`
 	Emails                   int64  `json:"emails"`
+	Calls                    int64  `json:"calls"`
 	Reservations             int64  `json:"reservations"`
 	AttachmentTotalSize      int64  `json:"attachment_total_size"`
 	AttachmentFileSize       int64  `json:"attachment_file_size"`
@@ -294,6 +345,8 @@ type apiAccountStats struct {
 	MessagesRemaining            int64 `json:"messages_remaining"`
 	Emails                       int64 `json:"emails"`
 	EmailsRemaining              int64 `json:"emails_remaining"`
+	Calls                        int64 `json:"calls"`
+	CallsRemaining               int64 `json:"calls_remaining"`
 	Reservations                 int64 `json:"reservations"`
 	ReservationsRemaining        int64 `json:"reservations_remaining"`
 	AttachmentTotalSize          int64 `json:"attachment_total_size"`
@@ -323,6 +376,7 @@ type apiAccountResponse struct {
 	Subscriptions []*user.Subscription       `json:"subscriptions,omitempty"`
 	Reservations  []*apiAccountReservation   `json:"reservations,omitempty"`
 	Tokens        []*apiAccountTokenResponse `json:"tokens,omitempty"`
+	PhoneNumbers  []string                   `json:"phone_numbers,omitempty"`
 	Tier          *apiAccountTier            `json:"tier,omitempty"`
 	Limits        *apiAccountLimits          `json:"limits,omitempty"`
 	Stats         *apiAccountStats           `json:"stats,omitempty"`
@@ -340,7 +394,10 @@ type apiConfigResponse struct {
 	EnableLogin        bool     `json:"enable_login"`
 	EnableSignup       bool     `json:"enable_signup"`
 	EnablePayments     bool     `json:"enable_payments"`
+	EnableCalls        bool     `json:"enable_calls"`
+	EnableEmails       bool     `json:"enable_emails"`
 	EnableReservations bool     `json:"enable_reservations"`
+	BillingContact     string   `json:"billing_contact"`
 	DisallowedTopics   []string `json:"disallowed_topics"`
 }
 

server/util.go

@@ -5,16 +5,27 @@ import (
 	"fmt"
 	"heckel.io/ntfy/util"
 	"io"
+	"mime"
 	"net/http"
 	"net/netip"
 	"strings"
 )
 
+var mimeDecoder mime.WordDecoder
+
 func readBoolParam(r *http.Request, defaultValue bool, names ...string) bool {
 	value := strings.ToLower(readParam(r, names...))
 	if value == "" {
 		return defaultValue
 	}
+	return toBool(value)
+}
+
+func isBoolValue(value string) bool {
+	return value == "1" || value == "yes" || value == "true" || value == "0" || value == "no" || value == "false"
+}
+
+func toBool(value string) bool {
 	return value == "1" || value == "yes" || value == "true"
 }
 
@@ -39,7 +50,7 @@ func readParam(r *http.Request, names ...string) string {
 
 func readHeaderParam(r *http.Request, names ...string) string {
 	for _, name := range names {
-		value := r.Header.Get(name)
+		value := maybeDecodeHeader(r.Header.Get(name))
 		if value != "" {
 			return strings.TrimSpace(value)
 		}
@@ -107,10 +118,18 @@ func withContext(r *http.Request, ctx map[contextKey]any) *http.Request {
 	return r.WithContext(c)
 }
 
-func fromContext[T any](r *http.Request, key contextKey) *T {
-	t, ok := r.Context().Value(key).(*T)
+func fromContext[T any](r *http.Request, key contextKey) (T, error) {
+	t, ok := r.Context().Value(key).(T)
 	if !ok {
-		panic(fmt.Sprintf("cannot find key %v in request context", key))
+		return t, fmt.Errorf("cannot find key %v in request context", key)
 	}
-	return t
+	return t, nil
+}
+
+func maybeDecodeHeader(header string) string {
+	decoded, err := mimeDecoder.DecodeHeader(header)
+	if err != nil {
+		return header
+	}
+	return decoded
 }

server/visitor.go

@@ -24,6 +24,10 @@ const (
 	// visitorDefaultReservationsLimit is the amount of topic names a user without a tier is allowed to reserve.
 	// This number is zero, and changing it may have unintended consequences in the web app, or otherwise
 	visitorDefaultReservationsLimit = int64(0)
+
+	// visitorDefaultCallsLimit is the amount of calls a user without a tier is allowed to make.
+	// This number is zero, because phone numbers have to be verified first.
+	visitorDefaultCallsLimit = int64(0)
 )
 
 // Constants used to convert a tier-user's MessageLimit (see user.Tier) into adequate request limiter
@@ -56,6 +60,7 @@ type visitor struct {
 	requestLimiter      *rate.Limiter      // Rate limiter for (almost) all requests (including messages)
 	messagesLimiter     *util.FixedLimiter // Rate limiter for messages
 	emailsLimiter       *util.RateLimiter  // Rate limiter for emails
+	callsLimiter        *util.FixedLimiter // Rate limiter for calls
 	subscriptionLimiter *util.FixedLimiter // Fixed limiter for active subscriptions (ongoing connections)
 	bandwidthLimiter    *util.RateLimiter  // Limiter for attachment bandwidth downloads
 	accountLimiter      *rate.Limiter      // Rate limiter for account creation, may be nil
@@ -79,6 +84,7 @@ type visitorLimits struct {
 	EmailLimit               int64
 	EmailLimitBurst          int
 	EmailLimitReplenish      rate.Limit
+	CallLimit                int64
 	ReservationsLimit        int64
 	AttachmentTotalSizeLimit int64
 	AttachmentFileSizeLimit  int64
@@ -91,6 +97,8 @@ type visitorStats struct {
 	MessagesRemaining            int64
 	Emails                       int64
 	EmailsRemaining              int64
+	Calls                        int64
+	CallsRemaining               int64
 	Reservations                 int64
 	ReservationsRemaining        int64
 	AttachmentTotalSize          int64
@@ -107,10 +115,11 @@ const (
 )
 
 func newVisitor(conf *Config, messageCache *messageCache, userManager *user.Manager, ip netip.Addr, user *user.User) *visitor {
-	var messages, emails int64
+	var messages, emails, calls int64
 	if user != nil {
 		messages = user.Stats.Messages
 		emails = user.Stats.Emails
+		calls = user.Stats.Calls
 	}
 	v := &visitor{
 		config:              conf,
@@ -124,11 +133,12 @@ func newVisitor(conf *Config, messageCache *messageCache, userManager *user.Mana
 		requestLimiter:      nil, // Set in resetLimiters
 		messagesLimiter:     nil, // Set in resetLimiters, may be nil
 		emailsLimiter:       nil, // Set in resetLimiters
+		callsLimiter:        nil, // Set in resetLimiters, may be nil
 		bandwidthLimiter:    nil, // Set in resetLimiters
 		accountLimiter:      nil, // Set in resetLimiters, may be nil
 		authLimiter:         nil, // Set in resetLimiters, may be nil
 	}
-	v.resetLimitersNoLock(messages, emails, false)
+	v.resetLimitersNoLock(messages, emails, calls, false)
 	return v
 }
 
@@ -143,15 +153,23 @@ func (v *visitor) contextNoLock() log.Context {
 	fields := log.Context{
 		"visitor_id":                     visitorID(v.ip, v.user),
 		"visitor_ip":                     v.ip.String(),
+		"visitor_seen":                   util.FormatTime(v.seen),
 		"visitor_messages":               info.Stats.Messages,
 		"visitor_messages_limit":         info.Limits.MessageLimit,
 		"visitor_messages_remaining":     info.Stats.MessagesRemaining,
-		"visitor_emails":                 info.Stats.Emails,
-		"visitor_emails_limit":           info.Limits.EmailLimit,
-		"visitor_emails_remaining":       info.Stats.EmailsRemaining,
 		"visitor_request_limiter_limit":  v.requestLimiter.Limit(),
 		"visitor_request_limiter_tokens": v.requestLimiter.Tokens(),
 	}
+	if v.config.SMTPSenderFrom != "" {
+		fields["visitor_emails"] = info.Stats.Emails
+		fields["visitor_emails_limit"] = info.Limits.EmailLimit
+		fields["visitor_emails_remaining"] = info.Stats.EmailsRemaining
+	}
+	if v.config.TwilioAccount != "" {
+		fields["visitor_calls"] = info.Stats.Calls
+		fields["visitor_calls_limit"] = info.Limits.CallLimit
+		fields["visitor_calls_remaining"] = info.Stats.CallsRemaining
+	}
 	if v.authLimiter != nil {
 		fields["visitor_auth_limiter_limit"] = v.authLimiter.Limit()
 		fields["visitor_auth_limiter_tokens"] = v.authLimiter.Tokens()
@@ -215,6 +233,12 @@ func (v *visitor) EmailAllowed() bool {
 	return v.emailsLimiter.Allow()
 }
 
+func (v *visitor) CallAllowed() bool {
+	v.mu.RLock() // limiters could be replaced!
+	defer v.mu.RUnlock()
+	return v.callsLimiter.Allow()
+}
+
 func (v *visitor) SubscriptionAllowed() bool {
 	v.mu.RLock() // limiters could be replaced!
 	defer v.mu.RUnlock()
@@ -295,6 +319,7 @@ func (v *visitor) Stats() *user.Stats {
 	return &user.Stats{
 		Messages: v.messagesLimiter.Value(),
 		Emails:   v.emailsLimiter.Value(),
+		Calls:    v.callsLimiter.Value(),
 	}
 }
 
@@ -303,6 +328,7 @@ func (v *visitor) ResetStats() {
 	defer v.mu.RUnlock()
 	v.emailsLimiter.Reset()
 	v.messagesLimiter.Reset()
+	v.callsLimiter.Reset()
 }
 
 // User returns the visitor user, or nil if there is none
@@ -333,11 +359,11 @@ func (v *visitor) SetUser(u *user.User) {
 	shouldResetLimiters := v.user.TierID() != u.TierID() // TierID works with nil receiver
 	v.user = u                                           // u may be nil!
 	if shouldResetLimiters {
-		var messages, emails int64
+		var messages, emails, calls int64
 		if u != nil {
-			messages, emails = u.Stats.Messages, u.Stats.Emails
+			messages, emails, calls = u.Stats.Messages, u.Stats.Emails, u.Stats.Calls
 		}
-		v.resetLimitersNoLock(messages, emails, true)
+		v.resetLimitersNoLock(messages, emails, calls, true)
 	}
 }
 
@@ -352,11 +378,12 @@ func (v *visitor) MaybeUserID() string {
 	return ""
 }
 
-func (v *visitor) resetLimitersNoLock(messages, emails int64, enqueueUpdate bool) {
+func (v *visitor) resetLimitersNoLock(messages, emails, calls int64, enqueueUpdate bool) {
 	limits := v.limitsNoLock()
 	v.requestLimiter = rate.NewLimiter(limits.RequestLimitReplenish, limits.RequestLimitBurst)
 	v.messagesLimiter = util.NewFixedLimiterWithValue(limits.MessageLimit, messages)
 	v.emailsLimiter = util.NewRateLimiterWithValue(limits.EmailLimitReplenish, limits.EmailLimitBurst, emails)
+	v.callsLimiter = util.NewFixedLimiterWithValue(limits.CallLimit, calls)
 	v.bandwidthLimiter = util.NewBytesLimiter(int(limits.AttachmentBandwidthLimit), oneDay)
 	if v.user == nil {
 		v.accountLimiter = rate.NewLimiter(rate.Every(v.config.VisitorAccountCreationLimitReplenish), v.config.VisitorAccountCreationLimitBurst)
@@ -369,6 +396,7 @@ func (v *visitor) resetLimitersNoLock(messages, emails int64, enqueueUpdate bool
 		go v.userManager.EnqueueUserStats(v.user.ID, &user.Stats{
 			Messages: messages,
 			Emails:   emails,
+			Calls:    calls,
 		})
 	}
 	log.Fields(v.contextNoLock()).Debug("Rate limiters reset for visitor") // Must be after function, because contextNoLock() describes rate limiters
@@ -397,6 +425,7 @@ func tierBasedVisitorLimits(conf *Config, tier *user.Tier) *visitorLimits {
 		EmailLimit:               tier.EmailLimit,
 		EmailLimitBurst:          util.MinMax(int(float64(tier.EmailLimit)*visitorEmailLimitBurstRate), conf.VisitorEmailLimitBurst, visitorEmailLimitBurstMax),
 		EmailLimitReplenish:      dailyLimitToRate(tier.EmailLimit),
+		CallLimit:                tier.CallLimit,
 		ReservationsLimit:        tier.ReservationLimit,
 		AttachmentTotalSizeLimit: tier.AttachmentTotalSizeLimit,
 		AttachmentFileSizeLimit:  tier.AttachmentFileSizeLimit,
@@ -419,6 +448,7 @@ func configBasedVisitorLimits(conf *Config) *visitorLimits {
 		EmailLimit:               replenishDurationToDailyLimit(conf.VisitorEmailLimitReplenish), // Approximation!
 		EmailLimitBurst:          conf.VisitorEmailLimitBurst,
 		EmailLimitReplenish:      rate.Every(conf.VisitorEmailLimitReplenish),
+		CallLimit:                visitorDefaultCallsLimit,
 		ReservationsLimit:        visitorDefaultReservationsLimit,
 		AttachmentTotalSizeLimit: conf.VisitorAttachmentTotalSizeLimit,
 		AttachmentFileSizeLimit:  conf.AttachmentFileSizeLimit,
@@ -464,12 +494,15 @@ func (v *visitor) Info() (*visitorInfo, error) {
 func (v *visitor) infoLightNoLock() *visitorInfo {
 	messages := v.messagesLimiter.Value()
 	emails := v.emailsLimiter.Value()
+	calls := v.callsLimiter.Value()
 	limits := v.limitsNoLock()
 	stats := &visitorStats{
 		Messages:          messages,
 		MessagesRemaining: zeroIfNegative(limits.MessageLimit - messages),
 		Emails:            emails,
 		EmailsRemaining:   zeroIfNegative(limits.EmailLimit - emails),
+		Calls:             calls,
+		CallsRemaining:    zeroIfNegative(limits.CallLimit - calls),
 	}
 	return &visitorInfo{
 		Limits: limits,

tools/loadgen/main.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+)
+
+func main() {
+	baseURL := "https://staging.ntfy.sh"
+	if len(os.Args) > 1 {
+		baseURL = os.Args[1]
+	}
+	for i := 0; i < 2000; i++ {
+		go subscribe(i, baseURL)
+	}
+	time.Sleep(5 * time.Second)
+	for i := 0; i < 2000; i++ {
+		go func(worker int) {
+			for {
+				poll(worker, baseURL)
+			}
+		}(i)
+	}
+	time.Sleep(time.Hour)
+}
+
+func subscribe(worker int, baseURL string) {
+	fmt.Printf("[subscribe] worker=%d STARTING\n", worker)
+	start := time.Now()
+	topic, ip := fmt.Sprintf("subtopic%d", worker), fmt.Sprintf("1.2.%d.%d", (worker/255)%255, worker%255)
+	req, _ := http.NewRequest("GET", fmt.Sprintf("%s/%s/json", baseURL, topic), nil)
+	req.Header.Set("X-Forwarded-For", ip)
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		fmt.Printf("[subscribe] worker=%d time=%d error=%s\n", worker, time.Since(start).Milliseconds(), err.Error())
+		return
+	}
+	defer resp.Body.Close()
+	scanner := bufio.NewScanner(resp.Body)
+	for scanner.Scan() {
+		// Do nothing
+	}
+	fmt.Printf("[subscribe] worker=%d status=%d time=%d EXITED\n", worker, resp.StatusCode, time.Since(start).Milliseconds())
+}
+
+func poll(worker int, baseURL string) {
+	fmt.Printf("[poll] worker=%d STARTING\n", worker)
+	topic, ip := fmt.Sprintf("polltopic%d", worker), fmt.Sprintf("1.2.%d.%d", (worker/255)%255, worker%255)
+	start := time.Now()
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	defer cancel()
+
+	//req, _ := http.NewRequestWithContext(ctx, "GET", fmt.Sprintf("https://staging.ntfy.sh/%s/json?poll=1&since=all", topic), nil)
+	req, _ := http.NewRequestWithContext(ctx, "GET", fmt.Sprintf("%s/%s/json?poll=1&since=all", baseURL, topic), nil)
+	req.Header.Set("X-Forwarded-For", ip)
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		fmt.Printf("[poll] worker=%d time=%d status=- error=%s\n", worker, time.Since(start).Milliseconds(), err.Error())
+		cancel()
+		return
+	}
+	defer resp.Body.Close()
+	fmt.Printf("[poll] worker=%d time=%d status=%s\n", worker, time.Since(start).Milliseconds(), resp.Status)
+}

user/manager.go

@@ -6,7 +6,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	_ "github.com/mattn/go-sqlite3" // SQLite driver
+	"github.com/mattn/go-sqlite3"
 	"github.com/stripe/stripe-go/v74"
 	"golang.org/x/crypto/bcrypt"
 	"heckel.io/ntfy/log"
@@ -55,6 +55,7 @@ const (
 			messages_limit INT NOT NULL,
 			messages_expiry_duration INT NOT NULL,
 			emails_limit INT NOT NULL,
+			calls_limit INT NOT NULL,
 			reservations_limit INT NOT NULL,
 			attachment_file_size_limit INT NOT NULL,
 			attachment_total_size_limit INT NOT NULL,
@@ -76,6 +77,7 @@ const (
 			sync_topic TEXT NOT NULL,
 			stats_messages INT NOT NULL DEFAULT (0),
 			stats_emails INT NOT NULL DEFAULT (0),
+			stats_calls INT NOT NULL DEFAULT (0),
 			stripe_customer_id TEXT,
 			stripe_subscription_id TEXT,
 			stripe_subscription_status TEXT,
@@ -109,6 +111,12 @@ const (
 			PRIMARY KEY (user_id, token),
 			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
 		);
+		CREATE TABLE IF NOT EXISTS user_phone (
+			user_id TEXT NOT NULL,
+			phone_number TEXT NOT NULL,
+			PRIMARY KEY (user_id, phone_number),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
 		CREATE TABLE IF NOT EXISTS schemaVersion (
 			id INT PRIMARY KEY,
 			version INT NOT NULL
@@ -123,26 +131,26 @@ const (
 	`
 
 	selectUserByIDQuery = `
-		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
+		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stats_calls, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.calls_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
 		FROM user u
 		LEFT JOIN tier t on t.id = u.tier_id
 		WHERE u.id = ?
 	`
 	selectUserByNameQuery = `
-		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
+		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stats_calls, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.calls_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
 		FROM user u
 		LEFT JOIN tier t on t.id = u.tier_id
 		WHERE user = ?
 	`
 	selectUserByTokenQuery = `
-		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
+		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stats_calls, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.calls_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
 		FROM user u
 		JOIN user_token tk on u.id = tk.user_id
 		LEFT JOIN tier t on t.id = u.tier_id
 		WHERE tk.token = ? AND (tk.expires = 0 OR tk.expires >= ?)
 	`
 	selectUserByStripeCustomerIDQuery = `
-		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
+		SELECT u.id, u.user, u.pass, u.role, u.prefs, u.sync_topic, u.stats_messages, u.stats_emails, u.stats_calls, u.stripe_customer_id, u.stripe_subscription_id, u.stripe_subscription_status, u.stripe_subscription_interval, u.stripe_subscription_paid_until, u.stripe_subscription_cancel_at, deleted, t.id, t.code, t.name, t.messages_limit, t.messages_expiry_duration, t.emails_limit, t.calls_limit, t.reservations_limit, t.attachment_file_size_limit, t.attachment_total_size_limit, t.attachment_expiry_duration, t.attachment_bandwidth_limit, t.stripe_monthly_price_id, t.stripe_yearly_price_id
 		FROM user u
 		LEFT JOIN tier t on t.id = u.tier_id
 		WHERE u.stripe_customer_id = ?
@@ -169,11 +177,12 @@ const (
 				ELSE 2
 			END, user
 	`
+	selectUserCountQuery         = `SELECT COUNT(*) FROM user`
 	updateUserPassQuery          = `UPDATE user SET pass = ? WHERE user = ?`
 	updateUserRoleQuery          = `UPDATE user SET role = ? WHERE user = ?`
 	updateUserPrefsQuery         = `UPDATE user SET prefs = ? WHERE id = ?`
-	updateUserStatsQuery         = `UPDATE user SET stats_messages = ?, stats_emails = ? WHERE id = ?`
-	updateUserStatsResetAllQuery = `UPDATE user SET stats_messages = 0, stats_emails = 0`
+	updateUserStatsQuery         = `UPDATE user SET stats_messages = ?, stats_emails = ?, stats_calls = ? WHERE id = ?`
+	updateUserStatsResetAllQuery = `UPDATE user SET stats_messages = 0, stats_emails = 0, stats_calls = 0`
 	updateUserDeletedQuery       = `UPDATE user SET deleted = ? WHERE id = ?`
 	deleteUsersMarkedQuery       = `DELETE FROM user WHERE deleted < ?`
 	deleteUserQuery              = `DELETE FROM user WHERE user = ?`
@@ -184,6 +193,11 @@ const (
 		ON CONFLICT (user_id, topic)
 		DO UPDATE SET read=excluded.read, write=excluded.write, owner_user_id=excluded.owner_user_id
 	`
+	selectUserAllAccessQuery = `
+		SELECT user_id, topic, read, write
+		FROM user_access
+		ORDER BY write DESC, read DESC, topic
+	`
 	selectUserAccessQuery = `
 		SELECT topic, read, write
 		FROM user_access
@@ -256,26 +270,30 @@ const (
 		)
 	`
 
+	selectPhoneNumbersQuery = `SELECT phone_number FROM user_phone WHERE user_id = ?`
+	insertPhoneNumberQuery  = `INSERT INTO user_phone (user_id, phone_number) VALUES (?, ?)`
+	deletePhoneNumberQuery  = `DELETE FROM user_phone WHERE user_id = ? AND phone_number = ?`
+
 	insertTierQuery = `
-		INSERT INTO tier (id, code, name, messages_limit, messages_expiry_duration, emails_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id)
-		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+		INSERT INTO tier (id, code, name, messages_limit, messages_expiry_duration, emails_limit, calls_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
 	`
 	updateTierQuery = `
 		UPDATE tier
-		SET name = ?, messages_limit = ?, messages_expiry_duration = ?, emails_limit = ?, reservations_limit = ?, attachment_file_size_limit = ?, attachment_total_size_limit = ?, attachment_expiry_duration = ?, attachment_bandwidth_limit = ?, stripe_monthly_price_id = ?, stripe_yearly_price_id = ?
+		SET name = ?, messages_limit = ?, messages_expiry_duration = ?, emails_limit = ?, calls_limit = ?, reservations_limit = ?, attachment_file_size_limit = ?, attachment_total_size_limit = ?, attachment_expiry_duration = ?, attachment_bandwidth_limit = ?, stripe_monthly_price_id = ?, stripe_yearly_price_id = ?
 		WHERE code = ?
 	`
 	selectTiersQuery = `
-		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
+		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, calls_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
 		FROM tier
 	`
 	selectTierByCodeQuery = `
-		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
+		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, calls_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
 		FROM tier
 		WHERE code = ?
 	`
 	selectTierByPriceIDQuery = `
-		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
+		SELECT id, code, name, messages_limit, messages_expiry_duration, emails_limit, calls_limit, reservations_limit, attachment_file_size_limit, attachment_total_size_limit, attachment_expiry_duration, attachment_bandwidth_limit, stripe_monthly_price_id, stripe_yearly_price_id
 		FROM tier
 		WHERE (stripe_monthly_price_id = ? OR stripe_yearly_price_id = ?)
 	`
@@ -292,7 +310,7 @@ const (
 
 // Schema management queries
 const (
-	currentSchemaVersion     = 3
+	currentSchemaVersion     = 4
 	insertSchemaVersion      = `INSERT INTO schemaVersion VALUES (1, ?)`
 	updateSchemaVersion      = `UPDATE schemaVersion SET version = ? WHERE id = 1`
 	selectSchemaVersionQuery = `SELECT version FROM schemaVersion WHERE id = 1`
@@ -390,12 +408,25 @@ const (
 		CREATE UNIQUE INDEX idx_tier_stripe_monthly_price_id ON tier (stripe_monthly_price_id);
 		CREATE UNIQUE INDEX idx_tier_stripe_yearly_price_id ON tier (stripe_yearly_price_id);
 	`
+
+	// 3 -> 4
+	migrate3To4UpdateQueries = `
+		ALTER TABLE tier ADD COLUMN calls_limit INT NOT NULL DEFAULT (0);
+		ALTER TABLE user ADD COLUMN stats_calls INT NOT NULL DEFAULT (0);
+		CREATE TABLE IF NOT EXISTS user_phone (
+			user_id TEXT NOT NULL,
+			phone_number TEXT NOT NULL,
+			PRIMARY KEY (user_id, phone_number),
+			FOREIGN KEY (user_id) REFERENCES user (id) ON DELETE CASCADE
+		);
+	`
 )
 
 var (
 	migrations = map[int]func(db *sql.DB) error{
 		1: migrateFrom1,
 		2: migrateFrom2,
+		3: migrateFrom3,
 	}
 )
 
@@ -617,6 +648,56 @@ func (a *Manager) RemoveExpiredTokens() error {
 	return nil
 }
 
+// PhoneNumbers returns all phone numbers for the user with the given user ID
+func (a *Manager) PhoneNumbers(userID string) ([]string, error) {
+	rows, err := a.db.Query(selectPhoneNumbersQuery, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	phoneNumbers := make([]string, 0)
+	for {
+		phoneNumber, err := a.readPhoneNumber(rows)
+		if err == ErrPhoneNumberNotFound {
+			break
+		} else if err != nil {
+			return nil, err
+		}
+		phoneNumbers = append(phoneNumbers, phoneNumber)
+	}
+	return phoneNumbers, nil
+}
+
+func (a *Manager) readPhoneNumber(rows *sql.Rows) (string, error) {
+	var phoneNumber string
+	if !rows.Next() {
+		return "", ErrPhoneNumberNotFound
+	}
+	if err := rows.Scan(&phoneNumber); err != nil {
+		return "", err
+	} else if err := rows.Err(); err != nil {
+		return "", err
+	}
+	return phoneNumber, nil
+}
+
+// AddPhoneNumber adds a phone number to the user with the given user ID
+func (a *Manager) AddPhoneNumber(userID string, phoneNumber string) error {
+	if _, err := a.db.Exec(insertPhoneNumberQuery, userID, phoneNumber); err != nil {
+		if sqliteErr, ok := err.(sqlite3.Error); ok && sqliteErr.ExtendedCode == sqlite3.ErrConstraintUnique {
+			return ErrPhoneNumberExists
+		}
+		return err
+	}
+	return nil
+}
+
+// RemovePhoneNumber deletes a phone number from the user with the given user ID
+func (a *Manager) RemovePhoneNumber(userID string, phoneNumber string) error {
+	_, err := a.db.Exec(deletePhoneNumberQuery, userID, phoneNumber)
+	return err
+}
+
 // RemoveDeletedUsers deletes all users that have been marked deleted for
 func (a *Manager) RemoveDeletedUsers() error {
 	if _, err := a.db.Exec(deleteUsersMarkedQuery, time.Now().Unix()); err != nil {
@@ -699,9 +780,10 @@ func (a *Manager) writeUserStatsQueue() error {
 				"user_id":        userID,
 				"messages_count": update.Messages,
 				"emails_count":   update.Emails,
+				"calls_count":    update.Calls,
 			}).
 			Trace("Updating stats for user %s", userID)
-		if _, err := tx.Exec(updateUserStatsQuery, update.Messages, update.Emails, userID); err != nil {
+		if _, err := tx.Exec(updateUserStatsQuery, update.Messages, update.Emails, update.Calls, userID); err != nil {
 			return err
 		}
 	}
@@ -783,6 +865,9 @@ func (a *Manager) AddUser(username, password string, role Role) error {
 	userID := util.RandomStringPrefix(userIDPrefix, userIDLength)
 	syncTopic, now := util.RandomStringPrefix(syncTopicPrefix, syncTopicLength), time.Now().Unix()
 	if _, err = a.db.Exec(insertUserQuery, userID, username, hash, role, syncTopic, now); err != nil {
+		if sqliteErr, ok := err.(sqlite3.Error); ok && sqliteErr.ExtendedCode == sqlite3.ErrConstraintUnique {
+			return ErrUserExists
+		}
 		return err
 	}
 	return nil
@@ -853,6 +938,23 @@ func (a *Manager) Users() ([]*User, error) {
 	return users, nil
 }
 
+// UsersCount returns the number of users in the databsae
+func (a *Manager) UsersCount() (int64, error) {
+	rows, err := a.db.Query(selectUserCountQuery)
+	if err != nil {
+		return 0, err
+	}
+	defer rows.Close()
+	if !rows.Next() {
+		return 0, errNoRows
+	}
+	var count int64
+	if err := rows.Scan(&count); err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
 // User returns the user with the given username if it exists, or ErrUserNotFound otherwise.
 // You may also pass Everyone to retrieve the anonymous user and its Grant list.
 func (a *Manager) User(username string) (*User, error) {
@@ -893,12 +995,12 @@ func (a *Manager) readUser(rows *sql.Rows) (*User, error) {
 	defer rows.Close()
 	var id, username, hash, role, prefs, syncTopic string
 	var stripeCustomerID, stripeSubscriptionID, stripeSubscriptionStatus, stripeSubscriptionInterval, stripeMonthlyPriceID, stripeYearlyPriceID, tierID, tierCode, tierName sql.NullString
-	var messages, emails int64
-	var messagesLimit, messagesExpiryDuration, emailsLimit, reservationsLimit, attachmentFileSizeLimit, attachmentTotalSizeLimit, attachmentExpiryDuration, attachmentBandwidthLimit, stripeSubscriptionPaidUntil, stripeSubscriptionCancelAt, deleted sql.NullInt64
+	var messages, emails, calls int64
+	var messagesLimit, messagesExpiryDuration, emailsLimit, callsLimit, reservationsLimit, attachmentFileSizeLimit, attachmentTotalSizeLimit, attachmentExpiryDuration, attachmentBandwidthLimit, stripeSubscriptionPaidUntil, stripeSubscriptionCancelAt, deleted sql.NullInt64
 	if !rows.Next() {
 		return nil, ErrUserNotFound
 	}
-	if err := rows.Scan(&id, &username, &hash, &role, &prefs, &syncTopic, &messages, &emails, &stripeCustomerID, &stripeSubscriptionID, &stripeSubscriptionStatus, &stripeSubscriptionInterval, &stripeSubscriptionPaidUntil, &stripeSubscriptionCancelAt, &deleted, &tierID, &tierCode, &tierName, &messagesLimit, &messagesExpiryDuration, &emailsLimit, &reservationsLimit, &attachmentFileSizeLimit, &attachmentTotalSizeLimit, &attachmentExpiryDuration, &attachmentBandwidthLimit, &stripeMonthlyPriceID, &stripeYearlyPriceID); err != nil {
+	if err := rows.Scan(&id, &username, &hash, &role, &prefs, &syncTopic, &messages, &emails, &calls, &stripeCustomerID, &stripeSubscriptionID, &stripeSubscriptionStatus, &stripeSubscriptionInterval, &stripeSubscriptionPaidUntil, &stripeSubscriptionCancelAt, &deleted, &tierID, &tierCode, &tierName, &messagesLimit, &messagesExpiryDuration, &emailsLimit, &callsLimit, &reservationsLimit, &attachmentFileSizeLimit, &attachmentTotalSizeLimit, &attachmentExpiryDuration, &attachmentBandwidthLimit, &stripeMonthlyPriceID, &stripeYearlyPriceID); err != nil {
 		return nil, err
 	} else if err := rows.Err(); err != nil {
 		return nil, err
@@ -913,6 +1015,7 @@ func (a *Manager) readUser(rows *sql.Rows) (*User, error) {
 		Stats: &Stats{
 			Messages: messages,
 			Emails:   emails,
+			Calls:    calls,
 		},
 		Billing: &Billing{
 			StripeCustomerID:            stripeCustomerID.String,                                          // May be empty
@@ -936,6 +1039,7 @@ func (a *Manager) readUser(rows *sql.Rows) (*User, error) {
 			MessageLimit:             messagesLimit.Int64,
 			MessageExpiryDuration:    time.Duration(messagesExpiryDuration.Int64) * time.Second,
 			EmailLimit:               emailsLimit.Int64,
+			CallLimit:                callsLimit.Int64,
 			ReservationLimit:         reservationsLimit.Int64,
 			AttachmentFileSizeLimit:  attachmentFileSizeLimit.Int64,
 			AttachmentTotalSizeLimit: attachmentTotalSizeLimit.Int64,
@@ -948,6 +1052,33 @@ func (a *Manager) readUser(rows *sql.Rows) (*User, error) {
 	return user, nil
 }
 
+// AllGrants returns all user-specific access control entries, mapped to their respective user IDs
+func (a *Manager) AllGrants() (map[string][]Grant, error) {
+	rows, err := a.db.Query(selectUserAllAccessQuery)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	grants := make(map[string][]Grant, 0)
+	for rows.Next() {
+		var userID, topic string
+		var read, write bool
+		if err := rows.Scan(&userID, &topic, &read, &write); err != nil {
+			return nil, err
+		} else if err := rows.Err(); err != nil {
+			return nil, err
+		}
+		if _, ok := grants[userID]; !ok {
+			grants[userID] = make([]Grant, 0)
+		}
+		grants[userID] = append(grants[userID], Grant{
+			TopicPattern: fromSQLWildcard(topic),
+			Allow:        NewPermission(read, write),
+		})
+	}
+	return grants, nil
+}
+
 // Grants returns all user-specific access control entries
 func (a *Manager) Grants(username string) ([]Grant, error) {
 	rows, err := a.db.Query(selectUserAccessQuery, username)
@@ -1241,7 +1372,7 @@ func (a *Manager) AddTier(tier *Tier) error {
 	if tier.ID == "" {
 		tier.ID = util.RandomStringPrefix(tierIDPrefix, tierIDLength)
 	}
-	if _, err := a.db.Exec(insertTierQuery, tier.ID, tier.Code, tier.Name, tier.MessageLimit, int64(tier.MessageExpiryDuration.Seconds()), tier.EmailLimit, tier.ReservationLimit, tier.AttachmentFileSizeLimit, tier.AttachmentTotalSizeLimit, int64(tier.AttachmentExpiryDuration.Seconds()), tier.AttachmentBandwidthLimit, nullString(tier.StripeMonthlyPriceID), nullString(tier.StripeYearlyPriceID)); err != nil {
+	if _, err := a.db.Exec(insertTierQuery, tier.ID, tier.Code, tier.Name, tier.MessageLimit, int64(tier.MessageExpiryDuration.Seconds()), tier.EmailLimit, tier.CallLimit, tier.ReservationLimit, tier.AttachmentFileSizeLimit, tier.AttachmentTotalSizeLimit, int64(tier.AttachmentExpiryDuration.Seconds()), tier.AttachmentBandwidthLimit, nullString(tier.StripeMonthlyPriceID), nullString(tier.StripeYearlyPriceID)); err != nil {
 		return err
 	}
 	return nil
@@ -1249,7 +1380,7 @@ func (a *Manager) AddTier(tier *Tier) error {
 
 // UpdateTier updates a tier's properties in the database
 func (a *Manager) UpdateTier(tier *Tier) error {
-	if _, err := a.db.Exec(updateTierQuery, tier.Name, tier.MessageLimit, int64(tier.MessageExpiryDuration.Seconds()), tier.EmailLimit, tier.ReservationLimit, tier.AttachmentFileSizeLimit, tier.AttachmentTotalSizeLimit, int64(tier.AttachmentExpiryDuration.Seconds()), tier.AttachmentBandwidthLimit, nullString(tier.StripeMonthlyPriceID), nullString(tier.StripeYearlyPriceID), tier.Code); err != nil {
+	if _, err := a.db.Exec(updateTierQuery, tier.Name, tier.MessageLimit, int64(tier.MessageExpiryDuration.Seconds()), tier.EmailLimit, tier.CallLimit, tier.ReservationLimit, tier.AttachmentFileSizeLimit, tier.AttachmentTotalSizeLimit, int64(tier.AttachmentExpiryDuration.Seconds()), tier.AttachmentBandwidthLimit, nullString(tier.StripeMonthlyPriceID), nullString(tier.StripeYearlyPriceID), tier.Code); err != nil {
 		return err
 	}
 	return nil
@@ -1318,11 +1449,11 @@ func (a *Manager) TierByStripePrice(priceID string) (*Tier, error) {
 func (a *Manager) readTier(rows *sql.Rows) (*Tier, error) {
 	var id, code, name string
 	var stripeMonthlyPriceID, stripeYearlyPriceID sql.NullString
-	var messagesLimit, messagesExpiryDuration, emailsLimit, reservationsLimit, attachmentFileSizeLimit, attachmentTotalSizeLimit, attachmentExpiryDuration, attachmentBandwidthLimit sql.NullInt64
+	var messagesLimit, messagesExpiryDuration, emailsLimit, callsLimit, reservationsLimit, attachmentFileSizeLimit, attachmentTotalSizeLimit, attachmentExpiryDuration, attachmentBandwidthLimit sql.NullInt64
 	if !rows.Next() {
 		return nil, ErrTierNotFound
 	}
-	if err := rows.Scan(&id, &code, &name, &messagesLimit, &messagesExpiryDuration, &emailsLimit, &reservationsLimit, &attachmentFileSizeLimit, &attachmentTotalSizeLimit, &attachmentExpiryDuration, &attachmentBandwidthLimit, &stripeMonthlyPriceID, &stripeYearlyPriceID); err != nil {
+	if err := rows.Scan(&id, &code, &name, &messagesLimit, &messagesExpiryDuration, &emailsLimit, &callsLimit, &reservationsLimit, &attachmentFileSizeLimit, &attachmentTotalSizeLimit, &attachmentExpiryDuration, &attachmentBandwidthLimit, &stripeMonthlyPriceID, &stripeYearlyPriceID); err != nil {
 		return nil, err
 	} else if err := rows.Err(); err != nil {
 		return nil, err
@@ -1335,6 +1466,7 @@ func (a *Manager) readTier(rows *sql.Rows) (*Tier, error) {
 		MessageLimit:             messagesLimit.Int64,
 		MessageExpiryDuration:    time.Duration(messagesExpiryDuration.Int64) * time.Second,
 		EmailLimit:               emailsLimit.Int64,
+		CallLimit:                callsLimit.Int64,
 		ReservationLimit:         reservationsLimit.Int64,
 		AttachmentFileSizeLimit:  attachmentFileSizeLimit.Int64,
 		AttachmentTotalSizeLimit: attachmentTotalSizeLimit.Int64,
@@ -1477,6 +1609,22 @@ func migrateFrom2(db *sql.DB) error {
 	return tx.Commit()
 }
 
+func migrateFrom3(db *sql.DB) error {
+	log.Tag(tag).Info("Migrating user database schema: from 3 to 4")
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	if _, err := tx.Exec(migrate3To4UpdateQueries); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(updateSchemaVersion, 4); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
 func nullString(s string) sql.NullString {
 	if s == "" {
 		return sql.NullString{}