CloudFlare

前言

之前教大家使用

CF-Worker-Dir

在

Cloudflare Worker

上免费搭建导航网站，也简单的介绍了一下

CloudFlare Worker

是

CloudFlare

提供的无服务器应用程序，有免费版，可以用来测试 JS 脚本。今天再教大家一种新的关于

CloudFlare Worker

的玩法 – 利用

Cloudflare Worker

搭建镜像网站！

CloudFlare Worker

每天免费

10万次

请求也足以应对个人使用或者是小范围分享了

搭建教程

1. 点击 创建

Worker

点击 创建 Worker

2. 将原有的示例代码全部删除

3. 将下方代码全部粘贴到代码框里，如下图所示：

1. // 反代目标网站.
2. const upstream = \'google.com\'
4. // 反代目标网站的移动版.
5. const upstream_mobile = \'google.com\'
7. // 访问区域黑名单（按需设置）.
8. const blocked_region = [\'TK\']
10. // IP地址黑名单（按需设置）.
11. const blocked_ip_address = [\'0.0.0.0\', \'127.0.0.1\']
13. // 路径替换.
14. const replace_dict = {
15. \'$upstream\': \'$custom_domain\',
16. \'//archiveofourown.org\': \'\'
17. }
19. addEventListener(\'fetch\', event => {
20. event.respondWith(fetchAndApply(event.request));
21. })
23. async function fetchAndApply(request) {
25. const region = request.headers.get(\'cf-ipcountry\').toUpperCase();
26. const ip_address = request.headers.get(\'cf-connecting-ip\');
27. const user_agent = request.headers.get(\'user-agent\');
29. let response = null;
30. let url = new URL(request.url);
31. let url_host = url.host;
33. if (url.protocol == \'http:\') {
34. url.protocol = \'https:\'
35. response = Response.redirect(url.href);
36. return response;
37. }
39. if (await device_status(user_agent)) {
40. var upstream_domain = upstream;
41. } else {
42. var upstream_domain = upstream_mobile;
43. }
45. url.host = upstream_domain;
47. if (blocked_region.includes(region)) {
48. response = new Response(\'Access denied: WorkersProxy is not available in your region yet.\', {
49. status: 403
50. });
51. } else if(blocked_ip_address.includes(ip_address)){
52. response = new Response(\'Access denied: Your IP address is blocked by WorkersProxy.\', {
53. status: 403
54. });
55. } else{
56. let method = request.method;
57. let request_headers = request.headers;
58. let new_request_headers = new Headers(request_headers);
60. new_request_headers.set(\'Host\', upstream_domain);
61. new_request_headers.set(\'Referer\', url.href);
63. let original_response = await fetch(url.href, {
64. method: method,
65. headers: new_request_headers
66. })
68. let original_response_clone = original_response.clone();
69. let original_text = null;
70. let response_headers = original_response.headers;
71. let new_response_headers = new Headers(response_headers);
72. let status = original_response.status;
74. new_response_headers.set(\'cache-control\' ,\'public, max-age=14400\')
75. new_response_headers.set(\'access-control-allow-origin\', \'*\');
76. new_response_headers.set(\'access-control-allow-credentials\', true);
77. new_response_headers.delete(\'content-security-policy\');
78. new_response_headers.delete(\'content-security-policy-report-only\');
79. new_response_headers.delete(\'clear-site-data\');
81. const content_type = new_response_headers.get(\'content-type\');
82. if (content_type.includes(\'text/html\') && content_type.includes(\'UTF-8\')) {
83. original_text = await replace_response_text(original_response_clone, upstream_domain, url_host);
84. } else {
85. original_text = original_response_clone.body
86. }
88. response = new Response(original_text, {
89. status,
90. headers: new_response_headers
91. })
92. }
93. return response;
94. }
96. async function replace_response_text(response, upstream_domain, host_name) {
97. let text = await response.text()
99. var i, j;
100. for (i in replace_dict) {
101. j = replace_dict[i]
102. if (i == \'$upstream\') {
103. i = upstream_domain
104. } else if (i == \'$custom_domain\') {
105. i = host_name
106. }
108. if (j == \'$upstream\') {
109. j = upstream_domain
110. } else if (j == \'$custom_domain\') {
111. j = host_name
112. }
114. let re = new RegExp(i, \'g\')
115. text = text.replace(re, j);
116. }
117. return text;
118. }
121. async function device_status (user_agent_info) {
122. var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
123. var flag = true;
124. for (var v = 0; v < agents.length; v ) {
125. if (user_agent_info.indexOf(agents[v]) > 0) {
126. flag = false;
127. break;
128. }
129. }
130. return flag;
131. }

const upstream

= \'反代目标网站\'

const upstream_mobile

= \'反代目标网站的移动版\'

const blocked_region

= [\'访问区域黑名单（按需设置）\']

const blocked_ip_address

= [\'IP地址黑名单（按需设置）\', \'127.0.0.1\']

将下方代码全部粘贴到代码框里

4. 粘贴好后按需修改下方参数，修改好之后，点击

保存并部署

const upstream

= \'反代目标网站\'

const upstream_mobile

= \'反代目标网站的移动版\'

const blocked_region

= [\'访问区域黑名单（按需设置）\']

const blocked_ip_address

= [\'IP地址黑名单（按需设置）\', \'127.0.0.1\']
const replace_dict = 路径替换

保存并部署

5. 部署完成，访问自带域名即可查看反代效果

访问自带域名即可查看反代效果

绑定自己的域名请移步至【教程】

Cloudflare Worker

上免费搭建了导航网站 域名太长不好看？绑定自己的域名到

Cloudflare Worker

！，它将会详细地教你将绑定自己的域名到

Cloudflare Worker

上！