ambdownload.php

   1 <?php\r
   2 /*\r
   3 Plugin Name: ambdownload\r
   4 Plugin URI: http://blog.alex.org.uk/\r
   5 Description: Redirect a given page to a download URL\r
   6 Version: 2.2\r
   7 Author: Alex Bligh\r
   8 Author URI: http://blog.alex.org.uk\r
   9 */\r
  10 \r
  11 class ambdownload\r
  12 {\r
  13         function getDownloadLink($user, $file="default")\r
  14         {\r
  15                 $time = time();\r
  16                 $secret = rtrim(file_get_contents("/etc/apache2/download.secret"));\r
  17                 $id = $user;\r
  18                 $hash = hash("sha256",$time.":".$id.":".$file.":".$secret);\r
  19                 $link = "http://server.example.com/download?";\r
  20                 return $link.sprintf("id=%s&file=%s&time=%s&hash=%s",urlencode($id),urlencode($file),$time,$hash);\r
  21         }\r
  22 \r
  23         function downloadRedirect()\r
  24         {       \r
  25                 global $post;\r
  26                 if ((is_single() || is_singular() || is_page()))\r
  27                 {\r
  28                         $download_file = get_post_meta($post->ID, 'download_file', true);  \r
  29                         if ($download_file) {  \r
  30                                 global $current_user;\r
  31                                 get_currentuserinfo();\r
  32                                 wp_redirect(ambdownload::getDownloadLink($current_user->user_email, $download_file));\r
  33                                 exit;\r
  34                         }\r
  35                 }\r
  36         }\r
  37 }\r
  38 \r
  39 \r
  40 add_action( 'template_redirect', array('ambdownload', 'downloadRedirect'), 1, 2);\r
  41 \r
  42 \r
  43 \r