添加 typescript 支持

Signed-off-by: 迷渡 <justjavac@gmail.com>

.gitignore

@@ -0,0 +1 @@
+node_modules

extension/js/background.js

@@ -0,0 +1,74 @@
+/**
+ * 记录每个 tab 页的信息
+ * @type {Map<number, boolean>}
+ */
+const tabinfo = new Map();
+
+/**
+ * 扫描响应头，是否含有 Content-Security-Policy
+ * @param {chrome.webRequest.HttpHeader[]} headers
+ * @returns {boolean}
+ */
+function hasCSP(headers = []) {
+  return headers.some(
+    (x) => x.name.toLowerCase() === "content-security-policy"
+  );
+}
+
+chrome.webRequest.onHeadersReceived.addListener(
+  function (details) {
+    tabinfo.set(details.tabId, hasCSP(details.responseHeaders));
+  },
+  {
+    urls: ["<all_urls>"],
+    types: ["main_frame"],
+  },
+  ["responseHeaders"]
+);
+
+chrome.webRequest.onBeforeRequest.addListener(
+  function (details) {
+    // Comment out these lines
+    // The returned data is NOT a webRequest.BlockingResponse type data, will cause error on Chrome Version 87 88 90
+    // see https://github.com/justjavac/ReplaceGoogleCDN/issues/64#issuecomment-839610913
+    // see https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onBeforeRequest
+
+    // If we need to deal with the CSP, we must return the right data type but not simple a url string.
+
+    // if (tabinfo.get(details.tabId)) {
+    //     return details.url;
+    // }
+
+    let url = details.url.replace("http://", "https://");
+    url = url.replace("ajax.googleapis.com", "ajax.loli.net");
+    url = url.replace("fonts.googleapis.com", "fonts.loli.net");
+    url = url.replace("themes.googleusercontent.com", "themes.loli.net");
+    url = url.replace("fonts.gstatic.com", "gstatic.loli.net");
+    url = url.replace(
+      "www.google.com/recaptcha/",
+      "www.recaptcha.net/recaptcha/"
+    );
+    url = url.replace("secure.gravatar.com", "gravatar.loli.net");
+    url = url.replace(
+      "maxcdn.bootstrapcdn.com/bootstrap/",
+      "cdn.bootcdn.net/ajax/libs/twitter-bootstrap/"
+    );
+    return { redirectUrl: url };
+  },
+  {
+    urls: [
+      "*://ajax.googleapis.com/*",
+      "*://fonts.googleapis.com/*",
+      "*://themes.googleusercontent.com/*",
+      "*://fonts.gstatic.com/*",
+      "*://www.google.com/recaptcha/*",
+      "*://secure.gravatar.com/*",
+      "*://maxcdn.bootstrapcdn.com/bootstrap/*",
+    ],
+  },
+  ["blocking"]
+);
+
+chrome.tabs.onRemoved.addListener(function (tabId) {
+  tabinfo.delete(tabId);
+});

package.json

@@ -0,0 +1,11 @@
+{
+  "private": true,
+  "scripts": {
+    "fmt": "prettier --write \"extension/**/*.{ts,js}\""
+  },
+  "devDependencies": {
+    "@types/chrome": "^0.0.139",
+    "prettier": "^2.3.0",
+    "typescript": "^4.2.4"
+  }
+}

tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "strict": true,
+    "checkJs": true,
+    "noEmit": true,
+    "module": "ESNext",
+    "target": "ESNext",
+    "sourceMap": false,
+    "rootDir": "js"
+  }
+}

yarn.lock

@@ -0,0 +1,38 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@types/chrome@^0.0.139":
+  version "0.0.139"
+  resolved "https://registry.npmjs.org/@types/chrome/-/chrome-0.0.139.tgz#225fb926029d92e01ad24b5004c3cfed64376605"
+  integrity sha512-YZDKFlSVGFp4zldJlO+PUpxMH8N9vLke0fD6K9PA+TzXxPXu8LBLo5X2dzlOs2N/n+uMdI1lw7OPT1Emop10lQ==
+  dependencies:
+    "@types/filesystem" "*"
+    "@types/har-format" "*"
+
+"@types/filesystem@*":
+  version "0.0.30"
+  resolved "https://registry.npmjs.org/@types/filesystem/-/filesystem-0.0.30.tgz#a7373a2edf34d13e298baf7ee1101f738b2efb7e"
+  integrity sha512-NCoRgmGmLpTT9VFL6Bb6z0jQuqI3d0E5FGl7M0JOv/J5RQYo9s5aOItPYnpckx9MbYQk1APLXcF8f20Vqnf2yA==
+  dependencies:
+    "@types/filewriter" "*"
+
+"@types/filewriter@*":
+  version "0.0.29"
+  resolved "https://registry.npmjs.org/@types/filewriter/-/filewriter-0.0.29.tgz#a48795ecadf957f6c0d10e0c34af86c098fa5bee"
+  integrity sha512-BsPXH/irW0ht0Ji6iw/jJaK8Lj3FJemon2gvEqHKpCdDCeemHa+rI3WBGq5z7cDMZgoLjY40oninGxqk+8NzNQ==
+
+"@types/har-format@*":
+  version "1.2.5"
+  resolved "https://registry.npmjs.org/@types/har-format/-/har-format-1.2.5.tgz#4f6648814d0fdcb6a510e3364a9db439a753c4b1"
+  integrity sha512-IG8AE1m2pWtPqQ7wXhFhy6Q59bwwnLwO36v5Rit2FrbXCIp8Sk8E2PfUCreyrdo17STwFSKDAkitVuVYbpEHvQ==
+
+prettier@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.npmjs.org/prettier/-/prettier-2.3.0.tgz#b6a5bf1284026ae640f17f7ff5658a7567fc0d18"
+  integrity sha512-kXtO4s0Lz/DW/IJ9QdWhAf7/NmPWQXkFr/r/WkR3vyI+0v8amTDxiaQSLzs8NBlytfLWX/7uQUMIW677yLKl4w==
+
+typescript@^4.2.4:
+  version "4.2.4"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz#8610b59747de028fda898a8aef0e103f156d0961"
+  integrity sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==