Initial commit

.github/workflows/build.yml

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+name: "Build"
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    name: "Build"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "web-ext build"
+        id: web-ext-build
+        uses: kewisch/action-web-ext@v1
+        with:
+          cmd: build
+          source: .
+          filename: "{name}-{version}.xpi"
+
+      - name: "Upload Artifact"
+        uses: actions/upload-artifact@v3
+        with:
+          name: target.xpi
+          path: ${{ steps.web-ext-build.outputs.target }}

.github/workflows/lint.yml

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+name: "Lint"
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  lint:
+    name: "Lint"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "web-ext lint"
+        uses: kewisch/action-web-ext@v1
+        with:
+          cmd: lint
+          source: .
+          channel: listed

.github/workflows/release.yml

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+name: "Release"
+on:
+  push:
+    tags:
+      - '*.*.*'
+
+jobs:
+  sign:
+    name: "Release"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "web-ext build"
+        id: web-ext-build
+        uses: kewisch/action-web-ext@v1
+        with:
+          cmd: build
+          source: .
+
+      - name: "web-ext sign"
+        id: web-ext-sign
+        uses: kewisch/action-web-ext@v1
+        with:
+          cmd: sign
+          source: ${{ steps.web-ext-build.outputs.target }}
+          channel: unlisted
+          apiKey: ${{ secrets.AMO_SIGN_KEY }}
+          apiSecret: ${{ secrets.AMO_SIGN_SECRET }}
+          timeout: 900000
+
+      - name: "Create Release"
+        uses: softprops/action-gh-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          files: ${{ steps.web-ext-sign.outputs.target }}

LICENSE

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+MIT License
+
+Copyright (c) 2024 Jiří Barouš
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

_locales/en/messages.json

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+{
+    "extensionName": {
+        "message": "List Unsubscribe",
+        "description": "Name of the extension."
+    },
+
+    "extensionDescription": {
+        "message": "Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.",
+        "description": "Description of the extension."
+    },
+
+    "unsubButtonLabel": {
+        "message": "Unsubscribe",
+        "description": "The unsubscribe toolbar button label."
+    },
+
+    "noUnsub": {
+        "message": "No unsubscribe header found.",
+        "description": "Shown when no List-Unsubscribe header was found in the message."
+    },
+
+    "unsubLink": {
+        "message": "Unsubscribe link: ",
+        "description": "A visible label for the unsubscribe link."
+    },
+
+    "unsubConfirmPrompt": {
+        "message": "Are you sure you want to unsubscribe from this mailing list?",
+        "description": "A prompt that asks the user to confirm that they want continue with the one-click unsubscribe."
+    },
+
+    "confirmOneClick": {
+        "message": "One-click unsubscribe",
+        "description": "A button label to confirm the one-click unsubscribe."
+    },
+
+    "confirmOpenLink": {
+        "message": "Open link",
+        "description": "A button label to open the unsubscribe link in the browser."
+    },
+
+    "confirmComposeEmail": {
+        "message": "Compose email",
+        "description": "A button label to compose an email to unsubscribe."
+    },
+
+    "oneClickInProgress": {
+        "message": "Unsubscribe request in progress...",
+        "description": "A message shown when the one-click unsubscribe is pending."
+    },
+
+    "oneClickSuccess": {
+        "message": "Unsubscribe request sent.",
+        "description": "A message shown when the one-click unsubscribe was successful."
+    },
+
+    "oneClickFailure": {
+        "message": "Unsubscribe request failed: $ERROR$",
+        "description": "A message shown when the one-click unsubscribe failed.",
+        "placeholders": {
+            "error": {
+                "content": "$1",
+                "example": "404 Not Found"
+            }
+        }
+    }
+}

background.js

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+browser.mailTabs.onSelectedMessagesChanged.addListener(async (tab, messageList) => {
+	if (messageList.messages.length !== 1) {
+		browser.messageDisplayAction.disable()
+		return
+	}
+
+	const message = await browser.messages.getFull(messageList.messages[0].id)
+	if (message.headers.hasOwnProperty('list-unsubscribe')) {
+		browser.messageDisplayAction.enable()
+		return
+	}
+
+	browser.messageDisplayAction.disable()
+})

manifest.json

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+{
+    "name": "__MSG_extensionName__",
+    "version": "1.0.0",
+    "description": "__MSG_extensionDescription__",
+    "author": "Amunak",
+    "homepage_url": "https://github.com/Amunak/thunderbird-list-unsubscribe-addon",
+    "background": {
+        "scripts": [
+            "background.js"
+        ]
+    },
+    "browser_specific_settings": {
+        "gecko": {
+            "id": "[email protected]",
+            "strict_min_version": "112.0"
+        }
+    },
+    "default_locale": "en",
+    "icons": {
+        "48": "icons/icon_48.png",
+        "96": "icons/icon_96.png"
+    },
+    "manifest_version": 2,
+    "message_display_action": {
+        "default_icon": "icons/icon_48.png",
+        "default_title": "__MSG_unsubButtonLabel__",
+        "default_popup": "popup.html"
+    },
+    "permissions": [
+        "http://*/*",
+        "https://*/*",
+        "messagesRead",
+        "accountsRead",
+        "clipboardWrite",
+        "webRequest"
+    ]
+}

popup.css

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+body, html {
+	margin: 0;
+	padding: 0;
+}
+
+code {
+	font-size: .875em;
+	color: #d63384;
+	word-wrap: break-word;
+}
+
+.popup-page {
+	padding: .5rem;
+}
+
+.popup-page div {
+	margin: 1rem 0;
+}
+
+button {
+	margin: 0;
+	margin-right: .5rem;
+}

popup.html

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+<!DOCTYPE html>
+<html>
+  <head>
+      <meta charset="utf-8">
+      <title>List Unsubscribe</title>
+      <link rel="stylesheet" href="popup.css">
+  </head>
+  <body>
+      <div class="popup-page">
+          <div id="message">Processing...</div>
+          <div id="unsub-link-container"></div>
+          <div id="action-container"></div>
+      </div>
+      <script type="module" src="popup.js"></script>
+  </body>
+</html>