bin/modcss.php

   1 <?php
   2
   3 /*
   4  +-----------------------------------------------------------------------+
   5  | bin/modcss.php                                                        |
   6  |                                                                       |
   7  | This file is part of the RoundCube Webmail client                     |
   8  | Copyright (C) 2007-2009, RoundCube Dev. - Switzerland                 |
   9  | Licensed under the GNU GPL                                            |
  10  |                                                                       |
  11  | PURPOSE:                                                              |
  12  |   Modify CSS source from a URL                                        |
  13  |                                                                       |
  14  +-----------------------------------------------------------------------+
  15  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  16  +-----------------------------------------------------------------------+
  17
  18  $Id: modcss.php 2249 2009-01-22 11:23:00Z thomasb $
  19
  20 */
  21
  22 define('INSTALL_PATH', realpath(dirname(__FILE__) . '/..') . '/');
  23 require INSTALL_PATH . 'program/include/iniset.php';
  24
  25 $RCMAIL = rcmail::get_instance();
  26
  27 $source = '';
  28 $error  = 'Requires a valid user session and source url';
  29
  30 if (empty($RCMAIL->user->ID)) {
  31     header('HTTP/1.1 403 Forbidden');
  32     echo $error;
  33     exit;
  34 }
  35
  36 $url = preg_replace('/[^a-z0-9.-_\?\$&=%]/i', '', $_GET['u']);
  37 if ($url === null) {
  38     header('HTTP/1.1 403 Forbidden');
  39     echo $error;
  40     exit;
  41 }
  42
  43 $a_uri = parse_url($url);
  44 $port  = $a_uri['port'] ? $a_uri['port'] : 80;
  45 $host  = $a_uri['host'];
  46 $path  = $a_uri['path'] . ($a_uri['query'] ? '?'.$a_uri['query'] : '');
  47
  48 if (!($fp = fsockopen($host, $port, $errno, $errstr, 30))) {
  49     header('HTTP/1.1 500 Internal Server Error');
  50     echo $error;
  51     exit;
  52 }
  53
  54 $out  = "GET $path HTTP/1.0\r\n";
  55 $out .= "Host: $host\r\n";
  56 $out .= "Connection: Close\r\n\r\n";
  57 fwrite($fp, $out);
  58
  59 $header = true;
  60 while (!feof($fp)) {
  61     $line = trim(fgets($fp, 4048));
  62
  63     if ($header
  64         && preg_match('/^HTTP\/1\..\s+(\d+)/', $line, $regs)
  65         && intval($regs[1]) != 200) {
  66         break;
  67     } else if (empty($line) && $header) {
  68         $header = false;
  69     } else if (!$header) {
  70         $source .= "$line\n";
  71     }
  72 }
  73 fclose($fp);
  74
  75 if (!empty($source)) {
  76     header('Content-Type: text/css');
  77     echo rcmail_mod_css_styles(
  78         $source,
  79         preg_replace('/[^a-z0-9]/i', '', $_GET['c']),
  80         $url
  81     );
  82     exit;
  83 }
  84
  85 header('HTTP/1.0 404 Not Found');
  86 echo $error;
  87 exit;