├── package-firefox.txt ├── package.sh ├── package.bat ├── TODO.txt ├── jsconfig.json ├── README.md ├── src ├── options.js ├── options.xhtml ├── icons │ ├── icon.svg │ └── icon-light.svg └── background.js ├── .gitattributes ├── LICENSE.md ├── manifest.json ├── .gitignore ├── LICENSE-3RD-PARTY.md └── lib └── browser-polyfill.js /package-firefox.txt: -------------------------------------------------------------------------------- 1 | src 2 | LICENSE-3RD-PARTY.md 3 | LICENSE.md 4 | manifest.json 5 | README.md 6 | -------------------------------------------------------------------------------- /package.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/bash 2 | rm -r -f dist/Firefox 3 | 7za a -tzip dist/Firefox/ToggleResistFingerprinting.zip @package-firefox.txt 4 | -------------------------------------------------------------------------------- /package.bat: -------------------------------------------------------------------------------- 1 | @echo off 2 | 3 | rmdir /S /Q .\dist\Firefox 4 | .\lib\7za.exe a -tzip .\dist\Firefox\ToggleResistFingerprinting.zip @package-firefox.txt -------------------------------------------------------------------------------- /TODO.txt: -------------------------------------------------------------------------------- 1 | If we can get a good way to get the last window or the screen size we can recreate the normal windowed/maximized functionality 2 | Resist fingerprinting interferes with the "screen" object values. 3 | 4 | Refactor the code to get rid of the global "enabled" state. 5 | -------------------------------------------------------------------------------- /jsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "compilerOptions": { 3 | "checkJs": true, 4 | "target": "es2019", 5 | "baseUrl": "." 6 | }, 7 | "exclude": [ 8 | "node_modules", 9 | "**/node_modules/*" 10 | ], 11 | "files": [ 12 | "./typings/index.d.ts", 13 | "./typings/firefox-webext-browser/index.d.ts" 14 | ], 15 | "include": [ 16 | "./src/**/*" 17 | ] 18 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Adds a button to the navigation bar to toggle the "resist fingerprinting" setting; to help prevent websites from fingerprinting your browser for tracking purposes. 2 | 3 | Enabling the "resist fingerprinting" setting may break some websites. Information about the "resist fingerprinting" setting can be found at [https://wiki.mozilla.org/Security/Fingerprinting](https://wiki.mozilla.org/Security/Fingerprinting). 4 | 5 | Icon made by [Freepik](https://www.freepik.com/) from Flaticon is licensed by [CC 3.0 BY](http://creativecommons.org/licenses/by/3.0/) 6 | -------------------------------------------------------------------------------- /src/options.js: -------------------------------------------------------------------------------- 1 | (async function () { 2 | "use strict"; 3 | 4 | //Bit-flag enum 5 | const MaximizeWindowTypes = { 6 | 0: "None", 7 | 1: "Normal", 8 | 2: "Private", 9 | "None": 0, 10 | "Normal": 1, 11 | "Private": 2, 12 | }; 13 | 14 | const maximizeWindowTypes = /** @type {HTMLSelectElement} */ (document.getElementById("maximize-window-types")); 15 | 16 | maximizeWindowTypes.addEventListener("change", async () => { 17 | await browser.storage.local.set({ 18 | maximizeWindowTypes: maximizeWindowTypes.value 19 | }); 20 | }); 21 | 22 | document.addEventListener("DOMContentLoaded", async () => { 23 | const results = await browser.storage.local.get({ 24 | maximizeWindowTypes: MaximizeWindowTypes.None 25 | }); 26 | maximizeWindowTypes.value = results.maximizeWindowTypes; 27 | }); 28 | }()); -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | 2 | *.cs text diff=csharp 3 | *.msbuild text 4 | *.config text 5 | *.conf text 6 | *.cscfg text 7 | *.csdef text 8 | *.xml text 9 | *.ps1 text 10 | *.DotSettings text 11 | *.sh text eol=lf 12 | *.css text 13 | *.less text 14 | *.svg text 15 | *.js text 16 | *.html text 17 | *.cshtml text 18 | _references.js -text 19 | 20 | *.csproj text eol=crlf -merge 21 | *.dbproj text eol=crlf merge=union 22 | *.fsproj text eol=crlf merge=union 23 | *.vbproj text eol=crlf merge=union 24 | *.sln text eol=crlf -merge 25 | *.bundle eol=crlf -merge 26 | packages.config -merge 27 | 28 | *.jpg binary 29 | *.jpeg binary 30 | *.png binary 31 | *.gif binary 32 | 33 | *.mdf binary 34 | *.ndf binary 35 | *.ldf binary 36 | 37 | *.doc diff=astextplain 38 | *.DOC diff=astextplain 39 | *.docx diff=astextplain 40 | *.DOCX diff=astextplain 41 | *.dot diff=astextplain 42 | *.DOT diff=astextplain 43 | *.pdf diff=astextplain 44 | *.PDF diff=astextplain 45 | *.rtf diff=astextplain 46 | *.RTF diff=astextplain 47 | -------------------------------------------------------------------------------- /src/options.xhtml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | Options 7 | 8 | 9 | 10 |
11 |
12 | 13 |
14 | 20 |

NOTE: Resizing or maximizing windows makes your browser more identifiable. "Run in Private Windows" must 21 | be set to "Allow" on the extension details page to automatically maximize private windows.

22 |
23 |
24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | ===================== 3 | 4 | Copyright (c) 2019-2020 Aaron Papp 5 | 6 | Permission is hereby granted, free of charge, to any person 7 | obtaining a copy of this software and associated documentation 8 | files (the "Software"), to deal in the Software without 9 | restriction, including without limitation the rights to use, 10 | copy, modify, merge, publish, distribute, sublicense, and/or sell 11 | copies of the Software, and to permit persons to whom the 12 | Software is furnished to do so, subject to the following 13 | conditions: 14 | 15 | The above copyright notice and this permission notice shall be 16 | included in all copies or substantial portions of the Software. 17 | 18 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 20 | OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 22 | HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 23 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 24 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 | OTHER DEALINGS IN THE SOFTWARE. 26 | -------------------------------------------------------------------------------- /manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "manifest_version": 2, 3 | "name": "Toggle Resist Fingerprinting", 4 | "version": "1.2", 5 | "description": "Adds a button to the navigation bar to toggle the \"resist fingerprinting\" setting.", 6 | "author": "Aaron Papp", 7 | "homepage_url": "https://github.com/Aaron-P/ToggleResistFingerprinting", 8 | "icons": { 9 | "24": "src/icons/icon.svg", 10 | "32": "src/icons/icon.svg", 11 | "48": "src/icons/icon.svg", 12 | "64": "src/icons/icon.svg", 13 | "96": "src/icons/icon.svg" 14 | }, 15 | "permissions": [ 16 | "storage", 17 | "privacy" 18 | ], 19 | "background": { 20 | "scripts": [ 21 | "src/background.js" 22 | ] 23 | }, 24 | "options_ui": { 25 | "browser_style": true, 26 | "page": "src/options.xhtml" 27 | }, 28 | "browser_action": { 29 | "default_icon": "src/icons/icon.svg", 30 | "default_title": "Resist Fingerprinting", 31 | "default_area": "tabstrip", 32 | "theme_icons": [ 33 | { 34 | "light": "src/icons/icon-light.svg", 35 | "dark": "src/icons/icon.svg", 36 | "size": 32 37 | } 38 | ] 39 | }, 40 | "browser_specific_settings": { 41 | "gecko": { 42 | "id": "{3346f53a-bd1f-4f3f-94ff-70bb122083b3}", 43 | "strict_min_version": "63.0" 44 | } 45 | } 46 | } -------------------------------------------------------------------------------- /src/icons/icon.svg: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /src/icons/icon-light.svg: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /src/background.js: -------------------------------------------------------------------------------- 1 | (async function () { 2 | "use strict"; 3 | 4 | //Bit-flag enum 5 | const MaximizeWindowTypes = { 6 | 0: "None", 7 | 1: "Normal", 8 | 2: "Private", 9 | "None": 0, 10 | "Normal": 1, 11 | "Private": 2, 12 | }; 13 | 14 | async function setButtonState(enabled) { 15 | if (enabled) { 16 | await browser.browserAction.setBadgeBackgroundColor({ color: "#00BF00" }); 17 | await browser.browserAction.setBadgeText({ text: "On" }); 18 | } else { 19 | await browser.browserAction.setBadgeBackgroundColor({ color: "#FF0000" }); 20 | await browser.browserAction.setBadgeText({ text: "Off" }); 21 | } 22 | } 23 | 24 | async function refreshState() { 25 | enabled = (await browser.privacy.websites.resistFingerprinting.get({})).value; 26 | await setButtonState(enabled); 27 | } 28 | 29 | const settings = await browser.privacy.websites.resistFingerprinting.get({}); 30 | let enabled = settings.value; 31 | await browser.browserAction.setBadgeTextColor({ color: "#FFFFFF" }); 32 | await setButtonState(enabled); 33 | 34 | if (settings.levelOfControl !== "controlled_by_this_extension" && 35 | settings.levelOfControl !== "controllable_by_this_extension") { 36 | await browser.browserAction.disable(); 37 | await browser.browserAction.setTitle({ title: "Resist Fingerprinting (Permission Denied)" }); 38 | return; 39 | } 40 | 41 | browser.browserAction.onClicked.addListener(async () => { 42 | enabled = !(await browser.privacy.websites.resistFingerprinting.get({})).value; 43 | await browser.privacy.websites.resistFingerprinting.set({ value: enabled }); 44 | await setButtonState(enabled); 45 | }); 46 | 47 | browser.windows.onCreated.addListener(async (window) => { 48 | //Only resize normal windows. 49 | if (window.type !== "normal") 50 | return; 51 | 52 | //If resist fingerprinting is disabled rely on normal window size functionality. 53 | refreshState(); 54 | if (!enabled) 55 | return; 56 | 57 | const options = await browser.storage.local.get({ 58 | maximizeWindowTypes: MaximizeWindowTypes.None 59 | }); 60 | 61 | if (!window.incognito && (options.maximizeWindowTypes & MaximizeWindowTypes.Normal)) 62 | await browser.windows.update(window.id, { state: "maximized" }); 63 | if (window.incognito && (options.maximizeWindowTypes & MaximizeWindowTypes.Private)) 64 | await browser.windows.update(window.id, { state: "maximized" }); 65 | }); 66 | 67 | //The setting can be changed out from under us, e.g. via about:config, and 68 | //browser.privacy.websites.resistFingerprinting.onChange doesn't seem to 69 | //fire in all cases, so check the value periodically. 70 | browser.tabs.onActivated.addListener(refreshState); 71 | browser.windows.onFocusChanged.addListener(refreshState) 72 | }()); -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ################# 2 | ## Eclipse 3 | ################# 4 | 5 | *.pydevproject 6 | .project 7 | .metadata 8 | tmp/ 9 | *.tmp 10 | *.bak 11 | *.swp 12 | *~.nib 13 | local.properties 14 | .classpath 15 | .settings/ 16 | .loadpath 17 | 18 | # External tool builders 19 | .externalToolBuilders/ 20 | 21 | # Locally stored "Eclipse launch configurations" 22 | *.launch 23 | 24 | # CDT-specific 25 | .cproject 26 | 27 | # PDT-specific 28 | .buildpath 29 | 30 | 31 | ################# 32 | ## Visual Studio 33 | ################# 34 | 35 | ## Ignore Visual Studio temporary files, build results, and 36 | ## files generated by popular Visual Studio add-ons. 37 | 38 | # User-specific files 39 | *.suo 40 | *.user 41 | *.sln.docstates 42 | *.userprefs 43 | .vagrant/ 44 | 45 | # Build results 46 | [Dd]ebug/ 47 | [Rr]elease/ 48 | x64/ 49 | build/ 50 | [Bb]in/ 51 | [Oo]bj/ 52 | 53 | # MSTest test Results 54 | [Tt]est[Rr]esult*/ 55 | [Bb]uild[Ll]og.* 56 | *.VisualState.xml 57 | TestResult.xml 58 | TestResults.xml 59 | coverage.* 60 | *.dotCover 61 | *.psess 62 | *.vsp 63 | *.vspx 64 | 65 | *_i.c 66 | *_p.c 67 | *.ilk 68 | *.meta 69 | *.obj 70 | *.pch 71 | *.pdb 72 | *.pgc 73 | *.pgd 74 | *.rsp 75 | *.sbr 76 | *.tlb 77 | *.tli 78 | *.tlh 79 | *.tmp 80 | *.tmp_proj 81 | *.log 82 | *.vspscc 83 | *.vssscc 84 | .builds 85 | *.pidb 86 | *.log 87 | *.scc 88 | 89 | # Visual C++ cache files 90 | ipch/ 91 | *.aps 92 | *.ncb 93 | *.opensdf 94 | *.sdf 95 | *.cachefile 96 | 97 | # Caches 98 | _ReSharper* 99 | *.[Rr]e[Ss]harper 100 | *.ide/ 101 | *.[Cc]ache 102 | 103 | # Visual Studio profiler 104 | *.psess 105 | *.vsp 106 | *.vspx 107 | 108 | # Guidance Automation Toolkit 109 | *.gpState 110 | 111 | # ReSharper is a .NET coding add-in 112 | _ReSharper*/ 113 | *.[Rr]e[Ss]harper 114 | 115 | # TeamCity is a build add-in 116 | _TeamCity* 117 | 118 | # DotCover is a Code Coverage Tool 119 | *.dotCover 120 | 121 | # NCrunch 122 | *.ncrunch* 123 | .*crunch*.local.xml 124 | 125 | # Installshield output folder 126 | [Ee]xpress/ 127 | 128 | # DocProject is a documentation generator add-in 129 | DocProject/buildhelp/ 130 | DocProject/Help/*.HxT 131 | DocProject/Help/*.HxC 132 | DocProject/Help/*.hhc 133 | DocProject/Help/*.hhk 134 | DocProject/Help/*.hhp 135 | DocProject/Help/Html2 136 | DocProject/Help/html 137 | 138 | # Click-Once directory 139 | publish/ 140 | 141 | # Publish Web Output 142 | *.Publish.xml 143 | #*.pubxml 144 | 145 | # NuGet Packages Directory 146 | packages/* 147 | !packages/repositories.config 148 | 149 | # Windows Azure Build Output 150 | csx 151 | *.build.csdef 152 | 153 | # Windows Store app package directory 154 | AppPackages/ 155 | 156 | # Others 157 | sql/ 158 | *.Cache 159 | ClientBin/ 160 | [Ss]tyle[Cc]op.* 161 | ~$* 162 | *~ 163 | *.dbmdl 164 | *.[Pp]ublish.xml 165 | *.pfx 166 | *.publishsettings 167 | 168 | # RIA/Silverlight projects 169 | Generated_Code/ 170 | 171 | # Backup & report files from converting an old project file to a newer 172 | # Visual Studio version. 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For the avoidance of doubt, this trademark restriction does not form part of this License. 102 | > 103 | > Creative Commons may be contacted at https://creativecommons.org/. 104 | -------------------------------------------------------------------------------- /lib/browser-polyfill.js: -------------------------------------------------------------------------------- 1 | (function (global, factory) { 2 | if (typeof define === "function" && define.amd) { 3 | define("webextension-polyfill", ["module"], factory); 4 | } else if (typeof exports !== "undefined") { 5 | factory(module); 6 | } else { 7 | var mod = { 8 | exports: {} 9 | }; 10 | factory(mod); 11 | global.browser = mod.exports; 12 | } 13 | })(this, function (module) { 14 | /* webextension-polyfill - v0.5.0 - Thu Sep 26 2019 22:22:26 */ 15 | /* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */ 16 | /* vim: set sts=2 sw=2 et tw=80: */ 17 | /* This Source Code Form is subject to the terms of the Mozilla Public 18 | * License, v. 2.0. If a copy of the MPL was not distributed with this 19 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 20 | "use strict"; 21 | 22 | if (typeof browser === "undefined" || Object.getPrototypeOf(browser) !== Object.prototype) { 23 | const CHROME_SEND_MESSAGE_CALLBACK_NO_RESPONSE_MESSAGE = "The message port closed before a response was received."; 24 | const SEND_RESPONSE_DEPRECATION_WARNING = "Returning a Promise is the preferred way to send a reply from an onMessage/onMessageExternal listener, as the sendResponse will be removed from the specs (See https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onMessage)"; 25 | 26 | // Wrapping the bulk of this polyfill in a one-time-use function is a minor 27 | // optimization for Firefox. Since Spidermonkey does not fully parse the 28 | // contents of a function until the first time it's called, and since it will 29 | // never actually need to be called, this allows the polyfill to be included 30 | // in Firefox nearly for free. 31 | const wrapAPIs = extensionAPIs => { 32 | // NOTE: apiMetadata is associated to the content of the api-metadata.json file 33 | // at build time by replacing the following "include" with the content of the 34 | // JSON file. 35 | const apiMetadata = { 36 | "alarms": { 37 | "clear": { 38 | "minArgs": 0, 39 | "maxArgs": 1 40 | }, 41 | "clearAll": { 42 | "minArgs": 0, 43 | "maxArgs": 0 44 | }, 45 | "get": { 46 | "minArgs": 0, 47 | "maxArgs": 1 48 | }, 49 | "getAll": { 50 | "minArgs": 0, 51 | "maxArgs": 0 52 | } 53 | }, 54 | "bookmarks": { 55 | "create": { 56 | "minArgs": 1, 57 | "maxArgs": 1 58 | }, 59 | "get": { 60 | "minArgs": 1, 61 | "maxArgs": 1 62 | }, 63 | "getChildren": { 64 | "minArgs": 1, 65 | "maxArgs": 1 66 | }, 67 | "getRecent": { 68 | "minArgs": 1, 69 | "maxArgs": 1 70 | }, 71 | "getSubTree": { 72 | "minArgs": 1, 73 | "maxArgs": 1 74 | }, 75 | "getTree": { 76 | "minArgs": 0, 77 | "maxArgs": 0 78 | }, 79 | "move": { 80 | "minArgs": 2, 81 | "maxArgs": 2 82 | }, 83 | "remove": { 84 | "minArgs": 1, 85 | "maxArgs": 1 86 | }, 87 | "removeTree": { 88 | "minArgs": 1, 89 | "maxArgs": 1 90 | }, 91 | "search": { 92 | "minArgs": 1, 93 | "maxArgs": 1 94 | }, 95 | "update": { 96 | "minArgs": 2, 97 | "maxArgs": 2 98 | } 99 | }, 100 | "browserAction": { 101 | "disable": { 102 | "minArgs": 0, 103 | "maxArgs": 1, 104 | "fallbackToNoCallback": true 105 | }, 106 | "enable": { 107 | "minArgs": 0, 108 | "maxArgs": 1, 109 | "fallbackToNoCallback": true 110 | }, 111 | "getBadgeBackgroundColor": { 112 | "minArgs": 1, 113 | "maxArgs": 1 114 | }, 115 | "getBadgeText": { 116 | "minArgs": 1, 117 | "maxArgs": 1 118 | }, 119 | "getPopup": { 120 | "minArgs": 1, 121 | "maxArgs": 1 122 | }, 123 | "getTitle": { 124 | "minArgs": 1, 125 | "maxArgs": 1 126 | }, 127 | "openPopup": { 128 | "minArgs": 0, 129 | "maxArgs": 0 130 | }, 131 | "setBadgeBackgroundColor": { 132 | "minArgs": 1, 133 | "maxArgs": 1, 134 | "fallbackToNoCallback": true 135 | }, 136 | "setBadgeText": { 137 | "minArgs": 1, 138 | "maxArgs": 1, 139 | "fallbackToNoCallback": true 140 | }, 141 | "setIcon": { 142 | "minArgs": 1, 143 | "maxArgs": 1 144 | }, 145 | "setPopup": { 146 | "minArgs": 1, 147 | "maxArgs": 1, 148 | "fallbackToNoCallback": true 149 | }, 150 | "setTitle": { 151 | "minArgs": 1, 152 | "maxArgs": 1, 153 | "fallbackToNoCallback": true 154 | } 155 | }, 156 | "browsingData": { 157 | "remove": { 158 | "minArgs": 2, 159 | "maxArgs": 2 160 | }, 161 | "removeCache": { 162 | "minArgs": 1, 163 | "maxArgs": 1 164 | }, 165 | "removeCookies": { 166 | "minArgs": 1, 167 | "maxArgs": 1 168 | }, 169 | "removeDownloads": { 170 | "minArgs": 1, 171 | "maxArgs": 1 172 | }, 173 | "removeFormData": { 174 | "minArgs": 1, 175 | "maxArgs": 1 176 | }, 177 | "removeHistory": { 178 | "minArgs": 1, 179 | "maxArgs": 1 180 | }, 181 | "removeLocalStorage": { 182 | "minArgs": 1, 183 | "maxArgs": 1 184 | }, 185 | "removePasswords": { 186 | "minArgs": 1, 187 | "maxArgs": 1 188 | }, 189 | "removePluginData": { 190 | "minArgs": 1, 191 | "maxArgs": 1 192 | }, 193 | "settings": { 194 | "minArgs": 0, 195 | "maxArgs": 0 196 | } 197 | }, 198 | "commands": { 199 | "getAll": { 200 | "minArgs": 0, 201 | "maxArgs": 0 202 | } 203 | }, 204 | "contextMenus": { 205 | "remove": { 206 | "minArgs": 1, 207 | "maxArgs": 1 208 | }, 209 | "removeAll": { 210 | "minArgs": 0, 211 | "maxArgs": 0 212 | }, 213 | "update": { 214 | "minArgs": 2, 215 | "maxArgs": 2 216 | } 217 | }, 218 | "cookies": { 219 | "get": { 220 | "minArgs": 1, 221 | "maxArgs": 1 222 | }, 223 | "getAll": { 224 | "minArgs": 1, 225 | "maxArgs": 1 226 | }, 227 | "getAllCookieStores": { 228 | "minArgs": 0, 229 | "maxArgs": 0 230 | }, 231 | "remove": { 232 | "minArgs": 1, 233 | "maxArgs": 1 234 | }, 235 | "set": { 236 | "minArgs": 1, 237 | "maxArgs": 1 238 | } 239 | }, 240 | "devtools": { 241 | "inspectedWindow": { 242 | "eval": { 243 | "minArgs": 1, 244 | "maxArgs": 2, 245 | "singleCallbackArg": false 246 | } 247 | }, 248 | "panels": { 249 | "create": { 250 | "minArgs": 3, 251 | "maxArgs": 3, 252 | "singleCallbackArg": true 253 | } 254 | } 255 | }, 256 | "downloads": { 257 | "cancel": { 258 | "minArgs": 1, 259 | "maxArgs": 1 260 | }, 261 | "download": { 262 | "minArgs": 1, 263 | "maxArgs": 1 264 | }, 265 | "erase": { 266 | "minArgs": 1, 267 | "maxArgs": 1 268 | }, 269 | "getFileIcon": { 270 | "minArgs": 1, 271 | "maxArgs": 2 272 | }, 273 | "open": { 274 | "minArgs": 1, 275 | "maxArgs": 1, 276 | "fallbackToNoCallback": true 277 | }, 278 | "pause": { 279 | "minArgs": 1, 280 | "maxArgs": 1 281 | }, 282 | "removeFile": { 283 | "minArgs": 1, 284 | "maxArgs": 1 285 | }, 286 | "resume": { 287 | "minArgs": 1, 288 | "maxArgs": 1 289 | }, 290 | "search": { 291 | "minArgs": 1, 292 | "maxArgs": 1 293 | }, 294 | "show": { 295 | "minArgs": 1, 296 | "maxArgs": 1, 297 | "fallbackToNoCallback": true 298 | } 299 | }, 300 | "extension": { 301 | "isAllowedFileSchemeAccess": { 302 | "minArgs": 0, 303 | "maxArgs": 0 304 | }, 305 | "isAllowedIncognitoAccess": { 306 | "minArgs": 0, 307 | "maxArgs": 0 308 | } 309 | }, 310 | "history": { 311 | "addUrl": { 312 | "minArgs": 1, 313 | "maxArgs": 1 314 | }, 315 | "deleteAll": { 316 | "minArgs": 0, 317 | "maxArgs": 0 318 | }, 319 | "deleteRange": { 320 | "minArgs": 1, 321 | "maxArgs": 1 322 | }, 323 | "deleteUrl": { 324 | "minArgs": 1, 325 | "maxArgs": 1 326 | }, 327 | "getVisits": { 328 | "minArgs": 1, 329 | "maxArgs": 1 330 | }, 331 | "search": { 332 | "minArgs": 1, 333 | "maxArgs": 1 334 | } 335 | }, 336 | "i18n": { 337 | "detectLanguage": { 338 | "minArgs": 1, 339 | "maxArgs": 1 340 | }, 341 | "getAcceptLanguages": { 342 | "minArgs": 0, 343 | "maxArgs": 0 344 | } 345 | }, 346 | "identity": { 347 | "launchWebAuthFlow": { 348 | "minArgs": 1, 349 | "maxArgs": 1 350 | } 351 | }, 352 | "idle": { 353 | "queryState": { 354 | "minArgs": 1, 355 | "maxArgs": 1 356 | } 357 | }, 358 | "management": { 359 | "get": { 360 | "minArgs": 1, 361 | "maxArgs": 1 362 | }, 363 | "getAll": { 364 | "minArgs": 0, 365 | "maxArgs": 0 366 | }, 367 | "getSelf": { 368 | "minArgs": 0, 369 | "maxArgs": 0 370 | }, 371 | "setEnabled": { 372 | "minArgs": 2, 373 | "maxArgs": 2 374 | }, 375 | "uninstallSelf": { 376 | "minArgs": 0, 377 | "maxArgs": 1 378 | } 379 | }, 380 | "notifications": { 381 | "clear": { 382 | "minArgs": 1, 383 | "maxArgs": 1 384 | }, 385 | "create": { 386 | "minArgs": 1, 387 | "maxArgs": 2 388 | }, 389 | "getAll": { 390 | "minArgs": 0, 391 | "maxArgs": 0 392 | }, 393 | "getPermissionLevel": { 394 | "minArgs": 0, 395 | "maxArgs": 0 396 | }, 397 | "update": { 398 | "minArgs": 2, 399 | "maxArgs": 2 400 | } 401 | }, 402 | "pageAction": { 403 | "getPopup": { 404 | "minArgs": 1, 405 | "maxArgs": 1 406 | }, 407 | "getTitle": { 408 | "minArgs": 1, 409 | "maxArgs": 1 410 | }, 411 | "hide": { 412 | "minArgs": 1, 413 | "maxArgs": 1, 414 | "fallbackToNoCallback": true 415 | }, 416 | "setIcon": { 417 | "minArgs": 1, 418 | "maxArgs": 1 419 | }, 420 | "setPopup": { 421 | "minArgs": 1, 422 | "maxArgs": 1, 423 | "fallbackToNoCallback": true 424 | }, 425 | "setTitle": { 426 | "minArgs": 1, 427 | "maxArgs": 1, 428 | "fallbackToNoCallback": true 429 | }, 430 | "show": { 431 | "minArgs": 1, 432 | "maxArgs": 1, 433 | "fallbackToNoCallback": true 434 | } 435 | }, 436 | "permissions": { 437 | "contains": { 438 | "minArgs": 1, 439 | "maxArgs": 1 440 | }, 441 | "getAll": { 442 | "minArgs": 0, 443 | "maxArgs": 0 444 | }, 445 | "remove": { 446 | "minArgs": 1, 447 | "maxArgs": 1 448 | }, 449 | "request": { 450 | "minArgs": 1, 451 | "maxArgs": 1 452 | } 453 | }, 454 | "runtime": { 455 | "getBackgroundPage": { 456 | "minArgs": 0, 457 | "maxArgs": 0 458 | }, 459 | "getPlatformInfo": { 460 | "minArgs": 0, 461 | "maxArgs": 0 462 | }, 463 | "openOptionsPage": { 464 | "minArgs": 0, 465 | "maxArgs": 0 466 | }, 467 | "requestUpdateCheck": { 468 | "minArgs": 0, 469 | "maxArgs": 0 470 | }, 471 | "sendMessage": { 472 | "minArgs": 1, 473 | "maxArgs": 3 474 | }, 475 | "sendNativeMessage": { 476 | "minArgs": 2, 477 | "maxArgs": 2 478 | }, 479 | "setUninstallURL": { 480 | "minArgs": 1, 481 | "maxArgs": 1 482 | } 483 | }, 484 | "sessions": { 485 | "getDevices": { 486 | "minArgs": 0, 487 | "maxArgs": 1 488 | }, 489 | "getRecentlyClosed": { 490 | "minArgs": 0, 491 | "maxArgs": 1 492 | }, 493 | "restore": { 494 | "minArgs": 0, 495 | "maxArgs": 1 496 | } 497 | }, 498 | "storage": { 499 | "local": { 500 | "clear": { 501 | "minArgs": 0, 502 | "maxArgs": 0 503 | }, 504 | "get": { 505 | "minArgs": 0, 506 | "maxArgs": 1 507 | }, 508 | "getBytesInUse": { 509 | "minArgs": 0, 510 | "maxArgs": 1 511 | }, 512 | "remove": { 513 | "minArgs": 1, 514 | "maxArgs": 1 515 | }, 516 | "set": { 517 | "minArgs": 1, 518 | "maxArgs": 1 519 | } 520 | }, 521 | "managed": { 522 | "get": { 523 | "minArgs": 0, 524 | "maxArgs": 1 525 | }, 526 | "getBytesInUse": { 527 | "minArgs": 0, 528 | "maxArgs": 1 529 | } 530 | }, 531 | "sync": { 532 | "clear": { 533 | "minArgs": 0, 534 | "maxArgs": 0 535 | }, 536 | "get": { 537 | "minArgs": 0, 538 | "maxArgs": 1 539 | }, 540 | "getBytesInUse": { 541 | "minArgs": 0, 542 | "maxArgs": 1 543 | }, 544 | "remove": { 545 | "minArgs": 1, 546 | "maxArgs": 1 547 | }, 548 | "set": { 549 | "minArgs": 1, 550 | "maxArgs": 1 551 | } 552 | } 553 | }, 554 | "tabs": { 555 | "captureVisibleTab": { 556 | "minArgs": 0, 557 | "maxArgs": 2 558 | }, 559 | "create": { 560 | "minArgs": 1, 561 | "maxArgs": 1 562 | }, 563 | "detectLanguage": { 564 | "minArgs": 0, 565 | "maxArgs": 1 566 | }, 567 | "discard": { 568 | "minArgs": 0, 569 | "maxArgs": 1 570 | }, 571 | "duplicate": { 572 | "minArgs": 1, 573 | "maxArgs": 1 574 | }, 575 | "executeScript": { 576 | "minArgs": 1, 577 | "maxArgs": 2 578 | }, 579 | "get": { 580 | "minArgs": 1, 581 | "maxArgs": 1 582 | }, 583 | "getCurrent": { 584 | "minArgs": 0, 585 | "maxArgs": 0 586 | }, 587 | "getZoom": { 588 | "minArgs": 0, 589 | "maxArgs": 1 590 | }, 591 | "getZoomSettings": { 592 | "minArgs": 0, 593 | "maxArgs": 1 594 | }, 595 | "highlight": { 596 | "minArgs": 1, 597 | "maxArgs": 1 598 | }, 599 | "insertCSS": { 600 | "minArgs": 1, 601 | "maxArgs": 2 602 | }, 603 | "move": { 604 | "minArgs": 2, 605 | "maxArgs": 2 606 | }, 607 | "query": { 608 | "minArgs": 1, 609 | "maxArgs": 1 610 | }, 611 | "reload": { 612 | "minArgs": 0, 613 | "maxArgs": 2 614 | }, 615 | "remove": { 616 | "minArgs": 1, 617 | "maxArgs": 1 618 | }, 619 | "removeCSS": { 620 | "minArgs": 1, 621 | "maxArgs": 2 622 | }, 623 | "sendMessage": { 624 | "minArgs": 2, 625 | "maxArgs": 3 626 | }, 627 | "setZoom": { 628 | "minArgs": 1, 629 | "maxArgs": 2 630 | }, 631 | "setZoomSettings": { 632 | "minArgs": 1, 633 | "maxArgs": 2 634 | }, 635 | "update": { 636 | "minArgs": 1, 637 | "maxArgs": 2 638 | } 639 | }, 640 | "topSites": { 641 | "get": { 642 | "minArgs": 0, 643 | "maxArgs": 0 644 | } 645 | }, 646 | "webNavigation": { 647 | "getAllFrames": { 648 | "minArgs": 1, 649 | "maxArgs": 1 650 | }, 651 | "getFrame": { 652 | "minArgs": 1, 653 | "maxArgs": 1 654 | } 655 | }, 656 | "webRequest": { 657 | "handlerBehaviorChanged": { 658 | "minArgs": 0, 659 | "maxArgs": 0 660 | } 661 | }, 662 | "windows": { 663 | "create": { 664 | "minArgs": 0, 665 | "maxArgs": 1 666 | }, 667 | "get": { 668 | "minArgs": 1, 669 | "maxArgs": 2 670 | }, 671 | "getAll": { 672 | "minArgs": 0, 673 | "maxArgs": 1 674 | }, 675 | "getCurrent": { 676 | "minArgs": 0, 677 | "maxArgs": 1 678 | }, 679 | "getLastFocused": { 680 | "minArgs": 0, 681 | "maxArgs": 1 682 | }, 683 | "remove": { 684 | "minArgs": 1, 685 | "maxArgs": 1 686 | }, 687 | "update": { 688 | "minArgs": 2, 689 | "maxArgs": 2 690 | } 691 | } 692 | }; 693 | 694 | if (Object.keys(apiMetadata).length === 0) { 695 | throw new Error("api-metadata.json has not been included in browser-polyfill"); 696 | } 697 | 698 | /** 699 | * A WeakMap subclass which creates and stores a value for any key which does 700 | * not exist when accessed, but behaves exactly as an ordinary WeakMap 701 | * otherwise. 702 | * 703 | * @param {function} createItem 704 | * A function which will be called in order to create the value for any 705 | * key which does not exist, the first time it is accessed. The 706 | * function receives, as its only argument, the key being created. 707 | */ 708 | class DefaultWeakMap extends WeakMap { 709 | constructor(createItem, items = undefined) { 710 | super(items); 711 | this.createItem = createItem; 712 | } 713 | 714 | get(key) { 715 | if (!this.has(key)) { 716 | this.set(key, this.createItem(key)); 717 | } 718 | 719 | return super.get(key); 720 | } 721 | } 722 | 723 | /** 724 | * Returns true if the given object is an object with a `then` method, and can 725 | * therefore be assumed to behave as a Promise. 726 | * 727 | * @param {*} value The value to test. 728 | * @returns {boolean} True if the value is thenable. 729 | */ 730 | const isThenable = value => { 731 | return value && typeof value === "object" && typeof value.then === "function"; 732 | }; 733 | 734 | /** 735 | * Creates and returns a function which, when called, will resolve or reject 736 | * the given promise based on how it is called: 737 | * 738 | * - If, when called, `chrome.runtime.lastError` contains a non-null object, 739 | * the promise is rejected with that value. 740 | * - If the function is called with exactly one argument, the promise is 741 | * resolved to that value. 742 | * - Otherwise, the promise is resolved to an array containing all of the 743 | * function's arguments. 744 | * 745 | * @param {object} promise 746 | * An object containing the resolution and rejection functions of a 747 | * promise. 748 | * @param {function} promise.resolve 749 | * The promise's resolution function. 750 | * @param {function} promise.rejection 751 | * The promise's rejection function. 752 | * @param {object} metadata 753 | * Metadata about the wrapped method which has created the callback. 754 | * @param {integer} metadata.maxResolvedArgs 755 | * The maximum number of arguments which may be passed to the 756 | * callback created by the wrapped async function. 757 | * 758 | * @returns {function} 759 | * The generated callback function. 760 | */ 761 | const makeCallback = (promise, metadata) => { 762 | return (...callbackArgs) => { 763 | if (extensionAPIs.runtime.lastError) { 764 | promise.reject(extensionAPIs.runtime.lastError); 765 | } else if (metadata.singleCallbackArg || callbackArgs.length <= 1 && metadata.singleCallbackArg !== false) { 766 | promise.resolve(callbackArgs[0]); 767 | } else { 768 | promise.resolve(callbackArgs); 769 | } 770 | }; 771 | }; 772 | 773 | const pluralizeArguments = numArgs => numArgs == 1 ? "argument" : "arguments"; 774 | 775 | /** 776 | * Creates a wrapper function for a method with the given name and metadata. 777 | * 778 | * @param {string} name 779 | * The name of the method which is being wrapped. 780 | * @param {object} metadata 781 | * Metadata about the method being wrapped. 782 | * @param {integer} metadata.minArgs 783 | * The minimum number of arguments which must be passed to the 784 | * function. If called with fewer than this number of arguments, the 785 | * wrapper will raise an exception. 786 | * @param {integer} metadata.maxArgs 787 | * The maximum number of arguments which may be passed to the 788 | * function. If called with more than this number of arguments, the 789 | * wrapper will raise an exception. 790 | * @param {integer} metadata.maxResolvedArgs 791 | * The maximum number of arguments which may be passed to the 792 | * callback created by the wrapped async function. 793 | * 794 | * @returns {function(object, ...*)} 795 | * The generated wrapper function. 796 | */ 797 | const wrapAsyncFunction = (name, metadata) => { 798 | return function asyncFunctionWrapper(target, ...args) { 799 | if (args.length < metadata.minArgs) { 800 | throw new Error(`Expected at least ${metadata.minArgs} ${pluralizeArguments(metadata.minArgs)} for ${name}(), got ${args.length}`); 801 | } 802 | 803 | if (args.length > metadata.maxArgs) { 804 | throw new Error(`Expected at most ${metadata.maxArgs} ${pluralizeArguments(metadata.maxArgs)} for ${name}(), got ${args.length}`); 805 | } 806 | 807 | return new Promise((resolve, reject) => { 808 | if (metadata.fallbackToNoCallback) { 809 | // This API method has currently no callback on Chrome, but it return a promise on Firefox, 810 | // and so the polyfill will try to call it with a callback first, and it will fallback 811 | // to not passing the callback if the first call fails. 812 | try { 813 | target[name](...args, makeCallback({ resolve, reject }, metadata)); 814 | } catch (cbError) { 815 | console.warn(`${name} API method doesn't seem to support the callback parameter, ` + "falling back to call it without a callback: ", cbError); 816 | 817 | target[name](...args); 818 | 819 | // Update the API method metadata, so that the next API calls will not try to 820 | // use the unsupported callback anymore. 821 | metadata.fallbackToNoCallback = false; 822 | metadata.noCallback = true; 823 | 824 | resolve(); 825 | } 826 | } else if (metadata.noCallback) { 827 | target[name](...args); 828 | resolve(); 829 | } else { 830 | target[name](...args, makeCallback({ resolve, reject }, metadata)); 831 | } 832 | }); 833 | }; 834 | }; 835 | 836 | /** 837 | * Wraps an existing method of the target object, so that calls to it are 838 | * intercepted by the given wrapper function. The wrapper function receives, 839 | * as its first argument, the original `target` object, followed by each of 840 | * the arguments passed to the original method. 841 | * 842 | * @param {object} target 843 | * The original target object that the wrapped method belongs to. 844 | * @param {function} method 845 | * The method being wrapped. This is used as the target of the Proxy 846 | * object which is created to wrap the method. 847 | * @param {function} wrapper 848 | * The wrapper function which is called in place of a direct invocation 849 | * of the wrapped method. 850 | * 851 | * @returns {Proxy} 852 | * A Proxy object for the given method, which invokes the given wrapper 853 | * method in its place. 854 | */ 855 | const wrapMethod = (target, method, wrapper) => { 856 | return new Proxy(method, { 857 | apply(targetMethod, thisObj, args) { 858 | return wrapper.call(thisObj, target, ...args); 859 | } 860 | }); 861 | }; 862 | 863 | let hasOwnProperty = Function.call.bind(Object.prototype.hasOwnProperty); 864 | 865 | /** 866 | * Wraps an object in a Proxy which intercepts and wraps certain methods 867 | * based on the given `wrappers` and `metadata` objects. 868 | * 869 | * @param {object} target 870 | * The target object to wrap. 871 | * 872 | * @param {object} [wrappers = {}] 873 | * An object tree containing wrapper functions for special cases. Any 874 | * function present in this object tree is called in place of the 875 | * method in the same location in the `target` object tree. These 876 | * wrapper methods are invoked as described in {@see wrapMethod}. 877 | * 878 | * @param {object} [metadata = {}] 879 | * An object tree containing metadata used to automatically generate 880 | * Promise-based wrapper functions for asynchronous. Any function in 881 | * the `target` object tree which has a corresponding metadata object 882 | * in the same location in the `metadata` tree is replaced with an 883 | * automatically-generated wrapper function, as described in 884 | * {@see wrapAsyncFunction} 885 | * 886 | * @returns {Proxy} 887 | */ 888 | const wrapObject = (target, wrappers = {}, metadata = {}) => { 889 | let cache = Object.create(null); 890 | let handlers = { 891 | has(proxyTarget, prop) { 892 | return prop in target || prop in cache; 893 | }, 894 | 895 | get(proxyTarget, prop, receiver) { 896 | if (prop in cache) { 897 | return cache[prop]; 898 | } 899 | 900 | if (!(prop in target)) { 901 | return undefined; 902 | } 903 | 904 | let value = target[prop]; 905 | 906 | if (typeof value === "function") { 907 | // This is a method on the underlying object. Check if we need to do 908 | // any wrapping. 909 | 910 | if (typeof wrappers[prop] === "function") { 911 | // We have a special-case wrapper for this method. 912 | value = wrapMethod(target, target[prop], wrappers[prop]); 913 | } else if (hasOwnProperty(metadata, prop)) { 914 | // This is an async method that we have metadata for. Create a 915 | // Promise wrapper for it. 916 | let wrapper = wrapAsyncFunction(prop, metadata[prop]); 917 | value = wrapMethod(target, target[prop], wrapper); 918 | } else { 919 | // This is a method that we don't know or care about. Return the 920 | // original method, bound to the underlying object. 921 | value = value.bind(target); 922 | } 923 | } else if (typeof value === "object" && value !== null && (hasOwnProperty(wrappers, prop) || hasOwnProperty(metadata, prop))) { 924 | // This is an object that we need to do some wrapping for the children 925 | // of. Create a sub-object wrapper for it with the appropriate child 926 | // metadata. 927 | value = wrapObject(value, wrappers[prop], metadata[prop]); 928 | } else { 929 | // We don't need to do any wrapping for this property, 930 | // so just forward all access to the underlying object. 931 | Object.defineProperty(cache, prop, { 932 | configurable: true, 933 | enumerable: true, 934 | get() { 935 | return target[prop]; 936 | }, 937 | set(value) { 938 | target[prop] = value; 939 | } 940 | }); 941 | 942 | return value; 943 | } 944 | 945 | cache[prop] = value; 946 | return value; 947 | }, 948 | 949 | set(proxyTarget, prop, value, receiver) { 950 | if (prop in cache) { 951 | cache[prop] = value; 952 | } else { 953 | target[prop] = value; 954 | } 955 | return true; 956 | }, 957 | 958 | defineProperty(proxyTarget, prop, desc) { 959 | return Reflect.defineProperty(cache, prop, desc); 960 | }, 961 | 962 | deleteProperty(proxyTarget, prop) { 963 | return Reflect.deleteProperty(cache, prop); 964 | } 965 | }; 966 | 967 | // Per contract of the Proxy API, the "get" proxy handler must return the 968 | // original value of the target if that value is declared read-only and 969 | // non-configurable. For this reason, we create an object with the 970 | // prototype set to `target` instead of using `target` directly. 971 | // Otherwise we cannot return a custom object for APIs that 972 | // are declared read-only and non-configurable, such as `chrome.devtools`. 973 | // 974 | // The proxy handlers themselves will still use the original `target` 975 | // instead of the `proxyTarget`, so that the methods and properties are 976 | // dereferenced via the original targets. 977 | let proxyTarget = Object.create(target); 978 | return new Proxy(proxyTarget, handlers); 979 | }; 980 | 981 | /** 982 | * Creates a set of wrapper functions for an event object, which handles 983 | * wrapping of listener functions that those messages are passed. 984 | * 985 | * A single wrapper is created for each listener function, and stored in a 986 | * map. Subsequent calls to `addListener`, `hasListener`, or `removeListener` 987 | * retrieve the original wrapper, so that attempts to remove a 988 | * previously-added listener work as expected. 989 | * 990 | * @param {DefaultWeakMap} wrapperMap 991 | * A DefaultWeakMap object which will create the appropriate wrapper 992 | * for a given listener function when one does not exist, and retrieve 993 | * an existing one when it does. 994 | * 995 | * @returns {object} 996 | */ 997 | const wrapEvent = wrapperMap => ({ 998 | addListener(target, listener, ...args) { 999 | target.addListener(wrapperMap.get(listener), ...args); 1000 | }, 1001 | 1002 | hasListener(target, listener) { 1003 | return target.hasListener(wrapperMap.get(listener)); 1004 | }, 1005 | 1006 | removeListener(target, listener) { 1007 | target.removeListener(wrapperMap.get(listener)); 1008 | } 1009 | }); 1010 | 1011 | // Keep track if the deprecation warning has been logged at least once. 1012 | let loggedSendResponseDeprecationWarning = false; 1013 | 1014 | const onMessageWrappers = new DefaultWeakMap(listener => { 1015 | if (typeof listener !== "function") { 1016 | return listener; 1017 | } 1018 | 1019 | /** 1020 | * Wraps a message listener function so that it may send responses based on 1021 | * its return value, rather than by returning a sentinel value and calling a 1022 | * callback. If the listener function returns a Promise, the response is 1023 | * sent when the promise either resolves or rejects. 1024 | * 1025 | * @param {*} message 1026 | * The message sent by the other end of the channel. 1027 | * @param {object} sender 1028 | * Details about the sender of the message. 1029 | * @param {function(*)} sendResponse 1030 | * A callback which, when called with an arbitrary argument, sends 1031 | * that value as a response. 1032 | * @returns {boolean} 1033 | * True if the wrapped listener returned a Promise, which will later 1034 | * yield a response. False otherwise. 1035 | */ 1036 | return function onMessage(message, sender, sendResponse) { 1037 | let didCallSendResponse = false; 1038 | 1039 | let wrappedSendResponse; 1040 | let sendResponsePromise = new Promise(resolve => { 1041 | wrappedSendResponse = function (response) { 1042 | if (!loggedSendResponseDeprecationWarning) { 1043 | console.warn(SEND_RESPONSE_DEPRECATION_WARNING, new Error().stack); 1044 | loggedSendResponseDeprecationWarning = true; 1045 | } 1046 | didCallSendResponse = true; 1047 | resolve(response); 1048 | }; 1049 | }); 1050 | 1051 | let result; 1052 | try { 1053 | result = listener(message, sender, wrappedSendResponse); 1054 | } catch (err) { 1055 | result = Promise.reject(err); 1056 | } 1057 | 1058 | const isResultThenable = result !== true && isThenable(result); 1059 | 1060 | // If the listener didn't returned true or a Promise, or called 1061 | // wrappedSendResponse synchronously, we can exit earlier 1062 | // because there will be no response sent from this listener. 1063 | if (result !== true && !isResultThenable && !didCallSendResponse) { 1064 | return false; 1065 | } 1066 | 1067 | // A small helper to send the message if the promise resolves 1068 | // and an error if the promise rejects (a wrapped sendMessage has 1069 | // to translate the message into a resolved promise or a rejected 1070 | // promise). 1071 | const sendPromisedResult = promise => { 1072 | promise.then(msg => { 1073 | // send the message value. 1074 | sendResponse(msg); 1075 | }, error => { 1076 | // Send a JSON representation of the error if the rejected value 1077 | // is an instance of error, or the object itself otherwise. 1078 | let message; 1079 | if (error && (error instanceof Error || typeof error.message === "string")) { 1080 | message = error.message; 1081 | } else { 1082 | message = "An unexpected error occurred"; 1083 | } 1084 | 1085 | sendResponse({ 1086 | __mozWebExtensionPolyfillReject__: true, 1087 | message 1088 | }); 1089 | }).catch(err => { 1090 | // Print an error on the console if unable to send the response. 1091 | console.error("Failed to send onMessage rejected reply", err); 1092 | }); 1093 | }; 1094 | 1095 | // If the listener returned a Promise, send the resolved value as a 1096 | // result, otherwise wait the promise related to the wrappedSendResponse 1097 | // callback to resolve and send it as a response. 1098 | if (isResultThenable) { 1099 | sendPromisedResult(result); 1100 | } else { 1101 | sendPromisedResult(sendResponsePromise); 1102 | } 1103 | 1104 | // Let Chrome know that the listener is replying. 1105 | return true; 1106 | }; 1107 | }); 1108 | 1109 | const wrappedSendMessageCallback = ({ reject, resolve }, reply) => { 1110 | if (extensionAPIs.runtime.lastError) { 1111 | // Detect when none of the listeners replied to the sendMessage call and resolve 1112 | // the promise to undefined as in Firefox. 1113 | // See https://github.com/mozilla/webextension-polyfill/issues/130 1114 | if (extensionAPIs.runtime.lastError.message === CHROME_SEND_MESSAGE_CALLBACK_NO_RESPONSE_MESSAGE) { 1115 | resolve(); 1116 | } else { 1117 | reject(extensionAPIs.runtime.lastError); 1118 | } 1119 | } else if (reply && reply.__mozWebExtensionPolyfillReject__) { 1120 | // Convert back the JSON representation of the error into 1121 | // an Error instance. 1122 | reject(new Error(reply.message)); 1123 | } else { 1124 | resolve(reply); 1125 | } 1126 | }; 1127 | 1128 | const wrappedSendMessage = (name, metadata, apiNamespaceObj, ...args) => { 1129 | if (args.length < metadata.minArgs) { 1130 | throw new Error(`Expected at least ${metadata.minArgs} ${pluralizeArguments(metadata.minArgs)} for ${name}(), got ${args.length}`); 1131 | } 1132 | 1133 | if (args.length > metadata.maxArgs) { 1134 | throw new Error(`Expected at most ${metadata.maxArgs} ${pluralizeArguments(metadata.maxArgs)} for ${name}(), got ${args.length}`); 1135 | } 1136 | 1137 | return new Promise((resolve, reject) => { 1138 | const wrappedCb = wrappedSendMessageCallback.bind(null, { resolve, reject }); 1139 | args.push(wrappedCb); 1140 | apiNamespaceObj.sendMessage(...args); 1141 | }); 1142 | }; 1143 | 1144 | const staticWrappers = { 1145 | runtime: { 1146 | onMessage: wrapEvent(onMessageWrappers), 1147 | onMessageExternal: wrapEvent(onMessageWrappers), 1148 | sendMessage: wrappedSendMessage.bind(null, "sendMessage", { minArgs: 1, maxArgs: 3 }) 1149 | }, 1150 | tabs: { 1151 | sendMessage: wrappedSendMessage.bind(null, "sendMessage", { minArgs: 2, maxArgs: 3 }) 1152 | } 1153 | }; 1154 | const settingMetadata = { 1155 | clear: { minArgs: 1, maxArgs: 1 }, 1156 | get: { minArgs: 1, maxArgs: 1 }, 1157 | set: { minArgs: 1, maxArgs: 1 } 1158 | }; 1159 | apiMetadata.privacy = { 1160 | network: { 1161 | networkPredictionEnabled: settingMetadata, 1162 | webRTCIPHandlingPolicy: settingMetadata 1163 | }, 1164 | services: { 1165 | passwordSavingEnabled: settingMetadata 1166 | }, 1167 | websites: { 1168 | hyperlinkAuditingEnabled: settingMetadata, 1169 | referrersEnabled: settingMetadata 1170 | } 1171 | }; 1172 | 1173 | return wrapObject(extensionAPIs, staticWrappers, apiMetadata); 1174 | }; 1175 | 1176 | if (typeof chrome != "object" || !chrome || !chrome.runtime || !chrome.runtime.id) { 1177 | throw new Error("This script should only be loaded in a browser extension."); 1178 | } 1179 | 1180 | // The build process adds a UMD wrapper around this file, which makes the 1181 | // `module` variable available. 1182 | module.exports = wrapAPIs(chrome); 1183 | } else { 1184 | module.exports = browser; 1185 | } 1186 | }); 1187 | //# sourceMappingURL=browser-polyfill.js.map 1188 | --------------------------------------------------------------------------------