56 lines
1.6 KiB
PHP
56 lines
1.6 KiB
PHP
<?php
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$file = 'counter.dat';
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// 读取并自增
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$counter = (int)@file_get_contents($file);
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$counter++;
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// 使用 LOCK_EX 防止并发写入冲突
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file_put_contents($file, $counter, LOCK_EX);
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?>
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<?php
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header('Access-Control-Allow-Origin:*');
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header('Content-type:application/json; charset=utf-8');
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!empty($_GET['url']) ? $api = $_GET['url'] : exit(json_encode([
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'code'=>202,
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"msg"=>"网址不能为空"
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],JSON_UNESCAPED_UNICODE));
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/*
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* 请求
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*/
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$json = myCurl($api);
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/*
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* 判断
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*/
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if($json){
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echo json_encode(array('code'=>200,'dwz'=>$api,'rec'=>$json),JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);
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} else {
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echo json_encode(array('code'=>201,'msg'=>'短网址还原失败'),JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);
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}
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/***
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* 万能短网址还原函数
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* @param $url 短网址
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* @return 原始网址 | 空（还原失败或非短网址）
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*/
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function myCurl($url) {
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$curl = curl_init();
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curl_setopt($curl, CURLOPT_URL, $url);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0');
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curl_setopt($curl, CURLOPT_HEADER, true);
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curl_setopt($curl, CURLOPT_NOBODY, false);
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curl_setopt($curl, CURLOPT_TIMEOUT, 15);
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
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curl_setopt($curl, CURLOPT_ENCODING, 'gzip');
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$data = curl_exec($curl);
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$curlInfo = curl_getinfo($curl);
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curl_close($curl);
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if($curlInfo['http_code'] == 301 || $curlInfo['http_code'] == 302) {
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return $curlInfo['redirect_url'];
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}
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return '';
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}
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