203 lines
6.8 KiB
PHP
203 lines
6.8 KiB
PHP
<?php
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header('Access-Control-Allow-Origin: *');
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// 获取文件名
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$file = $_SERVER['REQUEST_URI'];
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// 获取文件类型
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$file_info = pathinfo($file);
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// 获取文件后缀名
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$file_ext = $file_info['extension'];
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// 定义允许的后缀
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$allow_ext = array('js', 'css', 'png', 'jpg', 'jpeg', 'gif', 'ico', 'json', 'txt', 'moc', 'moc3', 'svg', 'webp' , 'hosts', 'ttf', 'woff', 'woff2', 'eot', 'sgmodule');
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if($_SERVER['REQUEST_URI'] == '/'){
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// 输出首页
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header('content-type: text/html;charset=utf-8');
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echo file_get_contents('jsd.html');
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exit();
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}
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if($_SERVER['REQUEST_URI'] == '/help'){
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header('content-type: application/json;charset=utf-8');
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echo json_encode(array(
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'code' => 200,
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'title'=> 'Welcome to use OvOfish Studio API',
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'message' => '这是一个反代接口,如有需要请联系管理员。',
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'How_to_use' => '您只需将原有的域名更改为本站域名如需要使用jsdelivr的反代请添加/jsd，如需要raw.githubusercontent.com则添加/gh',
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'support_list' => '支持的接口：'.implode(',', array('/gh', '/jsd', '/unpkg')),
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'file_ext_list' => '允许的后缀列表：'.implode(',', $allow_ext)
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));
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exit();
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}
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if($_SERVER['REQUEST_URI'] == '/contact'){
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header('content-type: application/json;charset=utf-8');
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echo json_encode(array(
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'code' => 200,
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'title'=> 'Welcome to use OvOfish Studio API',
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'message' => '这是一个反代接口,如有需要请联系管理员。',
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'QQnumber' => '1709964150',
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'email' => 'mirai@lolicon.team',
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'blog' => 'https://lolicon.team'
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));
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exit();
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}
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if(empty($file_ext)){
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header('content-type: application/json;charset=utf-8');
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echo json_encode(array(
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'code' => 403,
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'title'=> 'Welcome to use OvOfish Studio API',
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'message' => '未能识别到文件类型',
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'file_ext' => '当前文件类型为：NULL',
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'file_ext_list' => '允许的后缀列表：'.implode(',', $allow_ext)
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));
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exit();
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}
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// 判断后缀是否在允许的后缀列表中 如果不在，则返回403
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if(!in_array($file_ext, $allow_ext)){
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header('content-type: application/json;charset=utf-8');
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echo json_encode(array(
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'code' => 403,
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'title'=> 'Welcome to OvOfish Studio API',
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'message' => '该文件类型不被允许, 请不要滥用本接口。',
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'file_ext' => '当前文件类型为：'.$file_ext,
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'file_ext_list' => '允许的后缀列表：'.implode(',', $allow_ext)
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));
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exit();
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}
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$mimetype = get_mimetype($file_info['extension']);
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header('content-type:'. $mimetype .';charset=utf-8');
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// 代理的域名及使用的协议最后不用加/
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$target_host = "";
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$new_request_uri = "";
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if (strpos($_SERVER['REQUEST_URI'], '/gh') === 0) {
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$target_host = "https://raw.githubusercontent.com";
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$new_request_uri = substr($_SERVER['REQUEST_URI'], 3);
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} elseif (strpos($_SERVER['REQUEST_URI'], '/jsd') === 0) {
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$target_host = "https://cdn.jsdelivr.net";
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$new_request_uri = substr($_SERVER['REQUEST_URI'], 5);
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}elseif (strpos($_SERVER['REQUEST_URI'], '/unpkg') === 0) {
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$target_host = "https://unpkg.com";
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$new_request_uri = substr($_SERVER['REQUEST_URI'], 6);
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} else {
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header('content-type: application/json;charset=utf-8');
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// 返回404状态
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http_response_code(404);
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echo json_encode(array(
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'code' => 404,
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'title'=> 'Welcome to use OvOfish Studio API',
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'message' => '无效的请求路径'
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));
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exit;
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}
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// 解析url参数
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function get_request_params()
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{
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$url = $_SERVER["REQUEST_URI"];
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$refer_url = parse_url($url);
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$params = $refer_url['query'];
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$arr = array();
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if(!empty($params))
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{
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$paramsArr = explode('&',$params);
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foreach($paramsArr as $k=>$v)
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{
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$a = explode('=',$v);
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$arr[$a[0]] = $a[1];
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}
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}
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return $arr;
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}
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// 解析HTTP响应头
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function parse_headers($headers)
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{
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global $root, $top;
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foreach( $headers as $k=>$v )
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{
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$t = explode( ':', $v, 2 );
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if( isset( $t[1] ) )
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{
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if(strcasecmp('Set-Cookie',trim($t[0]))==0)
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{
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$targetcookie=trim( $t[1] ).";";
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$res_cookie=preg_replace("/domain=.*?;/","domain=".$_SERVER["SERVER_NAME"].";",$targetcookie);
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$res_cookie=substr($res_cookie,0,strlen($res_cookie)-1);
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header("Set-Cookie: ".$res_cookie);
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}
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elseif(strcasecmp('Content-Type',trim($t[0]))==0)
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{
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header("Content-Type: ".trim( $t[1] ));
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}
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elseif(strcasecmp('Location',trim( $t[0] ))==0)
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{
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$relocation=str_replace($protocal_host['host'],$_SERVER["SERVER_NAME"],trim( $t[1] ));
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header("Location: ".$relocation);
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}
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elseif(strcasecmp('cache-control',trim( $t[0] ))==0)
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{
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header("cache-control: ".trim( $t[1] ));
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}
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else
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continue;
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}
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}
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return;
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}
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// 组装HTTP请求头
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$opts = array(
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'http'=>array(
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'method'=>$_SERVER['REQUEST_METHOD'],
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'header'=>"Accept-language: zh-CN\r\n" .
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"user-agent: {$_SERVER['HTTP_USER_AGENT']}\r\n".
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"Cookie: ".array_to_str($_COOKIE)."\r\n"
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)
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);
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$context = stream_context_create($opts);
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// 发送请求
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$homepage = file_get_contents($target_host.'/'.$new_request_uri,false,$context);
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if ($homepage === FALSE) {
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header('content-type: application/json;charset=utf-8');
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echo json_encode(array(
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'code' => 404,
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'title'=> 'Welcome to use OvOfish Studio API',
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'message' => '未能找到文件',
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'file_ext' => '当前文件类型为：'.$file_ext
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));
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exit;
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}
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function get_mimetype($extension) {
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// MIME类型数组
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$ct = array(
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'js' => 'application/javascript',
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'css' => 'text/css',
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'png' => 'image/png',
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'jpg' => 'image/jpeg',
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'jpeg' => 'image/jpeg',
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'gif' => 'image/gif',
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'ico' => 'image/vnd.microsoft.icon',
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'json' => 'application/json',
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'txt' => 'text/plain',
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'moc' => 'text/plain',
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'moc3' => 'text/plain',
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'svg' => 'image/svg+xml',
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'webp' => 'image/webp'
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);
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return isset($ct[strtolower($extension)]) ? $ct[strtolower($extension)] : 'text/plain';
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}
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function array_to_str($array)
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{
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$string="";
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if (is_array($array))
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{
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foreach ($array as $key => $value)
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{
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if(!empty($string))
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$string.="; ".$key."=".$value;
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else
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$string.=$key."=".$value;
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}
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} else
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{
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$string = $array;
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}
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return $string;
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}
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// 输出网页内容
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echo $homepage;
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?>
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