Current File : //var/webuzo-data/roundcube/program/actions/utils/modcss.php |
<?php
/**
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| |
| Copyright (C) The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| |
| PURPOSE: |
| Modify CSS source from a URL |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
| Author: Aleksander Machniak <alec@alec.pl> |
+-----------------------------------------------------------------------+
*/
class rcmail_action_utils_modcss extends rcmail_action
{
/**
* Request handler.
*
* @param array $args Arguments from the previous step(s)
*/
public function run($args = [])
{
$rcmail = rcmail::get_instance();
$url = rcube_utils::get_input_string('_u', rcube_utils::INPUT_GET);
$url = preg_replace('![^a-z0-9.-]!i', '', $url);
if ($url === null || empty($_SESSION['modcssurls'][$url])) {
$rcmail->output->sendExitError(403, "Unauthorized request");
}
$realurl = $_SESSION['modcssurls'][$url];
// don't allow any other connections than http(s)
if (!preg_match('~^https?://~i', $realurl, $matches)) {
$rcmail->output->sendExitError(403, "Invalid URL");
}
$source = false;
$ctype = null;
try {
$client = rcube::get_instance()->get_http_client();
$response = $client->get($realurl);
if (!empty($response)) {
$ctype = $response->getHeader('Content-Type');
$ctype = !empty($ctype) ? $ctype[0] : '';
$source = $response->getBody();
}
}
catch (Exception $e) {
rcube::raise_error($e, true, false);
}
$cid = rcube_utils::get_input_string('_c', rcube_utils::INPUT_GET);
$prefix = rcube_utils::get_input_string('_p', rcube_utils::INPUT_GET);
$container_id = preg_replace('/[^a-z0-9]/i', '', $cid);
$css_prefix = preg_replace('/[^a-z0-9]/i', '', $prefix);
$ctype_regexp = '~^text/(css|plain)~i';
if ($source !== false && $ctype && preg_match($ctype_regexp, $ctype)) {
$rcmail->output->sendExit(
rcube_utils::mod_css_styles($source, $container_id, false, $css_prefix),
['Content-Type: text/css']
);
}
$rcmail->output->sendExitError(404, "Invalid response returned by server");
}
}