user/pix.php

   1 <?PHP // $Id$
   2       // This function fetches user pictures from the data directory
   3       // Syntax:   pix.php/userid/f1.jpg or pix.php/userid/f2.jpg
   4       //     OR:   ?file=userid/f1.jpg or ?file=userid/f2.jpg
   5
   6     $nomoodlecookie = true;     // Because it interferes with caching
   7
   8     require_once("../config.php");
   9
  10     $lifetime = 86400;
  11
  12     if (isset($file)) {     // workaround for situations where / syntax doesn't work
  13         $pathinfo = $file;
  14
  15     } else {
  16         $pathinfo = get_slash_arguments("pix.php");
  17     }
  18
  19     if (! $args = parse_slash_arguments($pathinfo)) {
  20         error("No valid arguments supplied");
  21     }
  22
  23     $numargs = count($args);
  24
  25     if ($numargs == 2) {
  26         $userid = (integer)$args[0];
  27         $image  = $args[1];
  28         $pathname = "$CFG->dataroot/users/$userid/$image";
  29         $filetype = "image/jpeg";
  30     } else {
  31         $pathname = "$CFG->dirroot/pix/u/f1.png";
  32         $filetype = "image/png";
  33     }
  34
  35     $lastmodified = filemtime($pathname);
  36
  37     if (file_exists($pathname)) {
  38         header("Last-Modified: " . gmdate("D, d M Y H:i:s", $lastmodified) . " GMT");
  39         header("Expires: " . gmdate("D, d M Y H:i:s", time() + $lifetime) . " GMT");
  40         header("Cache-control: max_age = $lifetime"); // a day
  41         header("Pragma: ");
  42         header("Content-disposition: inline; filename=$image");
  43         header("Content-length: ".filesize($pathname));
  44         header("Content-type: $filetype");
  45         readfile("$pathname");
  46     }
  47
  48     exit;
  49 ?>