img.php

   1 <?php
   2 function curl_redirect_exec($ch) {
   3     curl_setopt($ch, CURLOPT_HEADER, TRUE);
   4     curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
   5     $data = curl_exec($ch);
   6     $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
   7     if ($http_code == 301 || $http_code == 302) {
   8         list($header) = explode("\r\n\r\n", $data, 2);
   9         $matches = array();
  10         //this part has been changes from the original
  11         preg_match("/(Location:|URI:)[^(\n)]*/", $header, $matches);
  12         $url = trim(str_replace($matches[1],"",$matches[0]));
  13         //end changes
  14         $url_parsed = parse_url($url);
  15         if (isset($url_parsed)) {
  16             curl_setopt($ch, CURLOPT_URL, $url);
  17             return curl_redirect_exec($ch);
  18         }
  19     }
  20     return $data;
  21 }
  22
  23 if(isset($_GET['imgurl']))
  24 {
  25     $url = $_GET['imgurl'];
  26     $ch = curl_init($url);
  27     curl_setopt($ch,CURLOPT_FOLLOWLOCATION,TRUE); //301&302
  28     $ret = curl_redirect_exec($ch);
  29     $Httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  30     $Hsize = curl_getinfo($ch,CURLINFO_HEADER_SIZE);
  31     curl_close($ch);
  32     if($Httpcode == '200')
  33     {
  34         $header = substr($ret,0,$Hsize);
  35         $pat = '/(Content-Type:\s?image\/\w+)/i';
  36         $matchRet = preg_match_all($pat,$header,$m);
  37         if($matchRet)
  38         {
  39             $header = $m[0][0];
  40             $ret = substr($ret,$Hsize);
  41             Header($header);
  42             echo $ret;
  43         }
  44         else
  45         {
  46             echo 'image not found';
  47         }
  48     }
  49     else
  50     {
  51         echo 'image loading error, code: '.$Httpcode;
  52     }
  53 }
  54 ?>