ReplaceGoogleCDN扩展 V2版本和V3版本的区别
文档说明：只记录关键地方; 2023-02-11
环境： chromium 内核
备注： firefox 版本113 开始支持 declarativeNetRequest
区别：
- v2 版本允许通过 javascript 脚本动态修改 HTTP 请求头、请求体、响应头、响应体
- v3 版本为了安全，不允许 javascript 脚本动态修改 HTTP 请求头、请求体、响应性头、响应体
- v3 版本允许修改动作， 变更为声明式修改规则，不允许脚本动态修改
共同点:
- 浏览器URL地址重定向工具 （例子： developers.google.com 自动重定向到 developers.google.cn）
核心关键点函数区别
v2版本核心函数
编写js 脚本就能修改 http 请求、响应内容
/**
* 响应头里CSP相关的选项
* @type {string[]}
*/
const remove_csp_item = [
"content-security-policy",
"content-security-policy-report-only",
"expect-ct",
"report-to",
"x-content-security-policy",
"x-webkit-csp",
"x-xss-protection",
"x-permitted-cross-domain-policies",
"x-content-type-options",
"x-frame-options",
"permissions-policy",
"timing-allow-origin",
"cross-origin-embedder-policy",
"cross-origin-opener-policy",
"cross-origin-opener-policy-report-only",
"cross-origin-embedder-policy-report-only",
];
/**
* 需要移除CSP的URL
* @type {string[]}
*/
const remove_csp_urls = [
"*://ajax.googleapis.com/*",
"*://fonts.googleapis.com/*",
"*://themes.googleusercontent.com/*",
"*://fonts.gstatic.com/*",
"*://*.google.com/*",
"*://secure.gravatar.com/*",
"*://www.gravatar.com/*",
"*://maxcdn.bootstrapcdn.com/*",
"*://api.github.com/*",
"*://www.gstatic.com/*",
"*://stackoverflow.com/*",
"*://translate.googleapis.com/*",
"*://developers.redhat.com/*",
"*://*.githubusercontent.com/*",
"*://pub.dev/*",
"*://stackoverflow.com/*",
];
/**
* 移除 Content-Security-Policy
*/
chrome.webRequest.onHeadersReceived.addListener(
(details) => {
//移除响应头 Content-Security-Policy
details.responseHeaders = details.responseHeaders.filter(
(response_header) =>
!remove_csp_item.includes(response_header.name.toLowerCase())
);
return {
responseHeaders: details.responseHeaders,
};
},
{
// urls: ["<all_urls>"],
urls: [
...remove_csp_urls, //需要移除 Content-Security-Policy 的URL地址
],
types: [
"main_frame",
"sub_frame",
"stylesheet",
"script",
"image",
"font",
"object",
"xmlhttprequest",
"ping",
"other",
],
},
["blocking", "responseHeaders"]
);
/*
请求地址重定向
1. https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onBeforeRequest
*/
chrome.webRequest.onBeforeRequest.addListener(
function (details) {
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("fonts.googleapis.com", "fonts.googleapis.cn");
url = url.replace("themes.googleusercontent.com", "themes.loli.net");
//url = url.replace("fonts.gstatic.com", "gstatic.loli.net");
url = url.replace("fonts.gstatic.com", "fonts.gstatic.cn");
url = url.replace(
"www.google.com/recaptcha/",
"www.recaptcha.net/recaptcha/"
);
url = url.replace("secure.gravatar.com", "gravatar.loli.net");
url = url.replace("www.gravatar.com", "gravatar.loli.net");
url = url.replace("en.gravatar.com", "gravatar.loli.net");
url = url.replace("cn.gravatar.com", "gravatar.loli.net");
url = url.replace("cdn.jsdelivr.net", "fastly.jsdelivr.net");
//"cdn.bootcdn.net/ajax/libs/twitter-bootstrap/"
//"cdn.jsdelivr.net/npm/bootstrap@$1/dist/$2"
url = url.replace(
/maxcdn\.bootstrapcdn\.com\/bootstrap\/(\d{1,4}\.\d{1,4}\.\d{1,4})\/(.*?)/g,
"lib.baomitu.com/twitter-bootstrap/$1/$2"
);
url = url.replace(
/code\.jquery\.com\/jquery-(\d{1,4}\.\d{1,4}\.\d{1,4})(.*?)/g,
"lib.baomitu.com/jquery/$1/jquery$2"
);
url = url.replace(
/code\.jquery\.com\/ui\/(\d{1,4}\.\d{1,4}\.\d{1,4})\/(.*?)/g,
"ajax.aspnetcdn.com/ajax/jquery.ui/$1/$2"
);
url = url.replace("developers.google.com", "developers.google.cn");
url = url.replace("developer.android.com", "developer.android.google.cn");
url = url.replace("source.android.com", "source.android.google.cn");
url = url.replace("www.gstatic.com", "www.gstatic.cn");
return { redirectUrl: url };
},
{
urls: [
"*://ajax.googleapis.com/*",
"*://fonts.googleapis.com/*",
"*://themes.googleusercontent.com/*",
"*://fonts.gstatic.com/*",
"*://www.google.com/recaptcha/*",
"*://secure.gravatar.com/*",
"*://en.gravatar.com/*",
"*://cn.gravatar.com/*",
"*://www.gravatar.com/*",
"*://maxcdn.bootstrapcdn.com/bootstrap/*",
"*://cdn.jsdelivr.net/*",
"*://code.jquery.com/jquery-*",
"*://code.jquery.com/ui/*",
"*://developers.google.com/*",
"*://developer.android.com/*",
"*://source.android.com/*",
"*://www.gstatic.com/*",
],
},
["blocking"]
);
v3版本 核心函数
只能预先申明规则，不能使用js 动态修改，规则都是： 声明式的
例子： developers.google.com 重定向到 developers.google.cn
chrome.declarativeNetRequest.updateDynamicRules(
{
addRules: [
{
id: 10,
priority: 1,
action: {
type: "redirect",
redirect: {
transform: {
scheme: "https",
host: "developers.google.cn",
},
},
},
condition: {
urlFilter: "developers.google.com",
requestDomains: ["developers.google.com"],
resourceTypes: [
"main_frame",
"sub_frame",
"stylesheet",
"script",
"image",
"font",
"object",
"xmlhttprequest",
"ping",
"csp_report",
"media",
"websocket",
"webtransport",
"webbundle",
"other",
],
},
},
],
removeRuleIds: [123],
},
(parameter) => {
console.log(parameter);
}
);
