| commit | author | age | ||
| 97bd2c | 1 | <?php |
| T | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 677e1f | 5 | | program/steps/utils/modcss.inc | |
| 97bd2c | 6 | | | |
| e019f2 | 7 | | This file is part of the Roundcube Webmail client | |
| 3e0e91 | 8 | | Copyright (C) 2007-2011, The Roundcube Dev Team | |
| 7fe381 | 9 | | | |
| T | 10 | | Licensed under the GNU General Public License version 3 or | |
| 11 | | any later version with exceptions for skins & plugins. | | |
| 12 | | See the README file for a full license statement. | | |
| 97bd2c | 13 | | | |
| T | 14 | | PURPOSE: | |
| 15 | | Modify CSS source from a URL | | |
| 16 | | | | |
| 17 | +-----------------------------------------------------------------------+ | |
| 18 | | Author: Thomas Bruederli <roundcube@gmail.com> | | |
| 19 | +-----------------------------------------------------------------------+ | |
| 20 | ||
| 155bbb | 21 | $Id$ |
| 97bd2c | 22 | |
| T | 23 | */ |
| 24 | ||
| 12bc8b | 25 | $source = ''; |
| 97bd2c | 26 | |
| 3e0e91 | 27 | $url = preg_replace('![^a-z0-9.-]!i', '', $_GET['_u']); |
| T | 28 | if ($url === null || !($realurl = $_SESSION['modcssurls'][$url])) { |
| 12bc8b | 29 | header('HTTP/1.1 403 Forbidden'); |
| 3e0e91 | 30 | echo "Unauthorized request"; |
| 12bc8b | 31 | exit; |
| 1608f4 | 32 | } |
| 97bd2c | 33 | |
| 3e0e91 | 34 | $a_uri = parse_url($realurl); |
| 12bc8b | 35 | $port = $a_uri['port'] ? $a_uri['port'] : 80; |
| T | 36 | $host = $a_uri['host']; |
| 37 | $path = $a_uri['path'] . ($a_uri['query'] ? '?'.$a_uri['query'] : ''); | |
| 38 | ||
| db5221 | 39 | // don't allow any other connections than http(s) |
| T | 40 | if (strtolower(substr($a_uri['scheme'], 0, 4)) != 'http') { |
| 41 | header('HTTP/1.1 403 Forbidden'); | |
| 42 | echo "Invalid URL"; | |
| 43 | exit; | |
| 44 | } | |
| 45 | ||
| 46 | // try to open socket connection | |
| 47 | if (!($fp = fsockopen($host, $port, $errno, $error, 15))) { | |
| 12bc8b | 48 | header('HTTP/1.1 500 Internal Server Error'); |
| T | 49 | echo $error; |
| 50 | exit; | |
| 51 | } | |
| 52 | ||
| db5221 | 53 | // set timeout for socket |
| T | 54 | stream_set_timeout($fp, 30); |
| 55 | ||
| 56 | // send request | |
| 12bc8b | 57 | $out = "GET $path HTTP/1.0\r\n"; |
| T | 58 | $out .= "Host: $host\r\n"; |
| 59 | $out .= "Connection: Close\r\n\r\n"; | |
| 60 | fwrite($fp, $out); | |
| 61 | ||
| db5221 | 62 | // read response |
| 12bc8b | 63 | $header = true; |
| db5221 | 64 | $headers = array(); |
| 12bc8b | 65 | while (!feof($fp)) { |
| T | 66 | $line = trim(fgets($fp, 4048)); |
| 67 | ||
| db5221 | 68 | if ($header) { |
| T | 69 | if (preg_match('/^HTTP\/1\..\s+(\d+)/', $line, $regs) |
| 70 | && intval($regs[1]) != 200) { | |
| 71 | break; | |
| 72 | } | |
| 73 | else if (empty($line)) { | |
| 74 | $header = false; | |
| 75 | } | |
| 76 | else { | |
| 77 | list($key, $value) = explode(': ', $line); | |
| 78 | $headers[strtolower($key)] = $value; | |
| 79 | } | |
| 80 | } | |
| 81 | else { | |
| 12bc8b | 82 | $source .= "$line\n"; |
| T | 83 | } |
| 84 | } | |
| f9160e | 85 | fclose($fp); |
| 12bc8b | 86 | |
| db5221 | 87 | // check content-type header and mod styles |
| T | 88 | $mimetype = strtolower($headers['content-type']); |
| 89 | if (!empty($source) && in_array($mimetype, array('text/css','text/plain'))) { | |
| 12bc8b | 90 | header('Content-Type: text/css'); |
| 3e0e91 | 91 | echo rcmail_mod_css_styles($source, preg_replace('/[^a-z0-9]/i', '', $_GET['_c'])); |
| 12bc8b | 92 | exit; |
| T | 93 | } |
| db5221 | 94 | else |
| T | 95 | $error = "Invalid response returned by server"; |
| 12bc8b | 96 | |
| T | 97 | header('HTTP/1.0 404 Not Found'); |
| 98 | echo $error; | |
| 99 | exit; | |
| 677e1f | 100 | |
| b25dfd | 101 | |
