For #6557 - added web-extension for cookies

app/src/main/assets/extensions/cookies/cookies.js

@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const COOKIES_CHECK_TIMEOUT_MS = 1000;
+
+function sendCookies(cookies) {
+    let message = {
+     'url': document.location.href,
+     'cookies': cookies
+    }
+    browser.runtime.sendNativeMessage("BrowserCookiesMessage", message);
+}
+
+function notify(message) {
+   sendCookies(message.cookies);
+}
+
+browser.runtime.onMessage.addListener(notify);
+
+const events = ["pageshow", "load", "unload"];
+var timeout;
+
+const eventLogger = event => {
+  switch (event.type) {
+    case "load":
+        timeout = setTimeout(() => {
+            browser.runtime.sendMessage({"checkCookies": true});
+        }, COOKIES_CHECK_TIMEOUT_MS);
+        break;
+    case "pageshow":
+        if (event.persisted) {
+          timeout = setTimeout(() => {
+              browser.runtime.sendMessage({"checkCookies": true});
+          }, COOKIES_CHECK_TIMEOUT_MS);
+        }
+        break;
+    case "unload":
+        clearTimeout(timeout);
+    default:
+        console.log('Event:', event.type);
+  }
+};
+
+events.forEach(eventName =>
+  window.addEventListener(eventName, eventLogger)
+);

app/src/main/assets/extensions/cookies/cookiesBackground.js

@@ -0,0 +1,28 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+browser.runtime.onMessage.addListener(notify);
+
+function sendMessageToTabs(tabs, cookies) {
+  for (let tab of tabs) {
+    browser.tabs.sendMessage(
+      tab.id,
+      {cookies: cookies}
+    );
+  }
+}
+
+function notify(message) {
+    if(message.checkCookies) {
+        browser.cookies.getAll({})
+            .then(cookies => {
+                browser.tabs.query({
+                    currentWindow: true,
+                    active: true
+                }).then(tabs => {
+                    sendMessageToTabs(tabs, cookies);
+                });
+        });
+    }
+}

app/src/main/assets/extensions/cookies/manifest.json

@@ -0,0 +1,32 @@
+{
+  "manifest_version": 2,
+  "name": "Mozilla Android Components - Cookies",
+  "version": "1.0",
+  "content_scripts": [
+    {
+      "matches": ["https://*/*"],
+      "include_globs": [
+        "https://www.google.*/search*",
+        "https://www.baidu.com/from=844b/s*",
+        "https://www.baidu.com/from=844b/baidu*",
+        "https://*search.yahoo.com/search*",
+        "https://www.bing.com/search*",
+        "https://duckduckgo.com/*"
+      ],
+      "js": ["cookies.js"],
+      "run_at": "document_end"
+    }
+  ],
+  "background": {
+    "scripts": ["cookiesBackground.js"]
+  },
+  "permissions": [
+    "geckoViewAddons",
+    "nativeMessaging",
+    "webNavigation",
+    "webRequest",
+    "webRequestBlocking",
+    "cookies",
+    "*://*/*"
+  ]
+}