source: github/index.php @ 77799d8

release-0.7
Last change on this file since 77799d8 was 77799d8, checked in by alecpl <alec@…>, 13 months ago
  • Applied some fixes from trunk
  • Property mode set to 100644
File size: 10.2 KB
Line 
1<?php
2/*
3 +-------------------------------------------------------------------------+
4 | Roundcube Webmail IMAP Client                                           |
5 | Version 0.7.2                                                           |
6 |                                                                         |
7 | Copyright (C) 2005-2012, The Roundcube Dev Team                         |
8 |                                                                         |
9 | This program is free software; you can redistribute it and/or modify    |
10 | it under the terms of the GNU General Public License version 2          |
11 | as published by the Free Software Foundation.                           |
12 |                                                                         |
13 | This program is distributed in the hope that it will be useful,         |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of          |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           |
16 | GNU General Public License for more details.                            |
17 |                                                                         |
18 | You should have received a copy of the GNU General Public License along |
19 | with this program; if not, write to the Free Software Foundation, Inc., |
20 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.             |
21 |                                                                         |
22 +-------------------------------------------------------------------------+
23 | Author: Thomas Bruederli <roundcube@gmail.com>                          |
24 +-------------------------------------------------------------------------+
25
26 $Id$
27
28*/
29
30// include environment
31require_once 'program/include/iniset.php';
32
33// init application, start session, init output class, etc.
34$RCMAIL = rcmail::get_instance();
35
36// Make the whole PHP output non-cacheable (#1487797)
37send_nocacheing_headers();
38
39// turn on output buffering
40ob_start();
41
42// check if config files had errors
43if ($err_str = $RCMAIL->config->get_error()) {
44  raise_error(array(
45    'code' => 601,
46    'type' => 'php',
47    'message' => $err_str), false, true);
48}
49
50// check DB connections and exit on failure
51if ($err_str = $DB->is_error()) {
52  raise_error(array(
53    'code' => 603,
54    'type' => 'db',
55    'message' => $err_str), FALSE, TRUE);
56}
57
58// error steps
59if ($RCMAIL->action=='error' && !empty($_GET['_code'])) {
60  raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);
61}
62
63// check if https is required (for login) and redirect if necessary
64if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
65  $https_port = is_bool($force_https) ? 443 : $force_https;
66  if (!rcube_https_check($https_port)) {
67    $host  = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
68    $host .= ($https_port != 443 ? ':' . $https_port : '');
69    header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
70    exit;
71  }
72}
73
74// trigger startup plugin hook
75$startup = $RCMAIL->plugins->exec_hook('startup', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
76$RCMAIL->set_task($startup['task']);
77$RCMAIL->action = $startup['action'];
78
79// try to log in
80if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
81  $request_valid = $_SESSION['temp'] && $RCMAIL->check_request(RCUBE_INPUT_POST, 'login');
82
83  // purge the session in case of new login when a session already exists
84  $RCMAIL->kill_session();
85
86  $auth = $RCMAIL->plugins->exec_hook('authenticate', array(
87    'host' => $RCMAIL->autoselect_host(),
88    'user' => trim(get_input_value('_user', RCUBE_INPUT_POST)),
89    'pass' => get_input_value('_pass', RCUBE_INPUT_POST, true,
90       $RCMAIL->config->get('password_charset', 'ISO-8859-1')),
91    'cookiecheck' => true,
92    'valid' => $request_valid,
93  ));
94
95  // check if client supports cookies
96  if ($auth['cookiecheck'] && empty($_COOKIE)) {
97    $OUTPUT->show_message("cookiesdisabled", 'warning');
98  }
99  else if ($auth['valid'] && !$auth['abort'] &&
100        !empty($auth['host']) && !empty($auth['user']) &&
101        $RCMAIL->login($auth['user'], $auth['pass'], $auth['host'])
102  ) {
103    // create new session ID, don't destroy the current session
104    // it was destroyed already by $RCMAIL->kill_session() above
105    $RCMAIL->session->remove('temp');
106    $RCMAIL->session->regenerate_id(false);
107
108    // send auth cookie if necessary
109    $RCMAIL->session->set_auth_cookie();
110
111    // log successful login
112    rcmail_log_login();
113
114    // restore original request parameters
115    $query = array();
116    if ($url = get_input_value('_url', RCUBE_INPUT_POST)) {
117      parse_str($url, $query);
118
119      // prevent endless looping on login page
120      if ($query['_task'] == 'login')
121        unset($query['_task']);
122
123      // prevent redirect to compose with specified ID (#1488226)
124      if ($query['_action'] == 'compose' && !empty($query['_id']))
125        $query = array();
126    }
127
128    // allow plugins to control the redirect url after login success
129    $redir = $RCMAIL->plugins->exec_hook('login_after', $query + array('_task' => 'mail'));
130    unset($redir['abort'], $redir['_err']);
131
132    // send redirect
133    $OUTPUT->redirect($redir);
134  }
135  else {
136    $error_code = is_object($IMAP) ? $IMAP->get_error_code() : -1;
137
138    $OUTPUT->show_message($error_code < -1 ? 'imaperror' : (!$auth['valid'] ? 'invalidrequest' : 'loginfailed'), 'warning');
139    $RCMAIL->plugins->exec_hook('login_failed', array(
140      'code' => $error_code, 'host' => $auth['host'], 'user' => $auth['user']));
141    $RCMAIL->kill_session();
142  }
143}
144
145// end session (after optional referer check)
146else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id']) && (!$RCMAIL->config->get('referer_check') || rcube_check_referer())) {
147  $userdata = array('user' => $_SESSION['username'], 'host' => $_SESSION['imap_host'], 'lang' => $RCMAIL->user->language);
148  $OUTPUT->show_message('loggedout');
149  $RCMAIL->logout_actions();
150  $RCMAIL->kill_session();
151  $RCMAIL->plugins->exec_hook('logout_after', $userdata);
152}
153
154// check session and auth cookie
155else if ($RCMAIL->task != 'login' && $_SESSION['user_id'] && $RCMAIL->action != 'send') {
156  if (!$RCMAIL->session->check_auth()) {
157    $RCMAIL->kill_session();
158    $session_error = true;
159  }
160}
161
162// not logged in -> show login page
163if (empty($RCMAIL->user->ID)) {
164  // log session failures
165  if (($task = get_input_value('_task', RCUBE_INPUT_GPC)) && !in_array($task, array('login','logout')) && !$session_error && ($sess_id = $_COOKIE[ini_get('session.name')])) {
166    $RCMAIL->session->log("Aborted session " . $sess_id . "; no valid session data found");
167    $session_error = true;
168  }
169
170  if ($OUTPUT->ajax_call)
171    $OUTPUT->redirect(array('_err' => 'session'), 2000);
172
173  if (!empty($_REQUEST['_framed']))
174    $OUTPUT->command('redirect', $RCMAIL->url(array('_err' => 'session')));
175
176  // check if installer is still active
177  if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
178    $OUTPUT->add_footer(html::div(array('style' => "background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em"),
179      html::tag('h2', array('style' => "margin-top:0.2em"), "Installer script is still accessible") .
180      html::p(null, "The install script of your Roundcube installation is still stored in its default location!") .
181      html::p(null, "Please <b>remove</b> the whole <tt>installer</tt> folder from the Roundcube directory because .
182        these files may expose sensitive configuration data like server passwords and encryption keys
183        to the public. Make sure you cannot access the <a href=\"./installer/\">installer script</a> from your browser.")
184      )
185    );
186  }
187
188  if ($session_error || $_REQUEST['_err'] == 'session')
189    $OUTPUT->show_message('sessionerror', 'error', null, true, -1);
190
191  $RCMAIL->set_task('login');
192  $OUTPUT->send('login');
193}
194// CSRF prevention
195else {
196  // don't check for valid request tokens in these actions
197  $request_check_whitelist = array('login'=>1, 'spell'=>1);
198
199  // check client X-header to verify request origin
200  if ($OUTPUT->ajax_call) {
201    if (rc_request_header('X-Roundcube-Request') != $RCMAIL->get_request_token() && !$RCMAIL->config->get('devel_mode')) {
202      header('HTTP/1.1 403 Forbidden');
203      die("Invalid Request");
204    }
205  }
206  // check request token in POST form submissions
207  else if (!empty($_POST) && !$request_check_whitelist[$RCMAIL->action] && !$RCMAIL->check_request()) {
208    $OUTPUT->show_message('invalidrequest', 'error');
209    $OUTPUT->send($RCMAIL->task);
210  }
211
212  // check referer if configured
213  if (!$request_check_whitelist[$RCMAIL->action] && $RCMAIL->config->get('referer_check') && !rcube_check_referer()) {
214    raise_error(array(
215      'code' => 403,
216      'type' => 'php',
217      'message' => "Referer check failed"), true, true);
218  }
219}
220
221// we're ready, user is authenticated and the request is safe
222$plugin = $RCMAIL->plugins->exec_hook('ready', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
223$RCMAIL->set_task($plugin['task']);
224$RCMAIL->action = $plugin['action'];
225
226
227// handle special actions
228if ($RCMAIL->action == 'keep-alive') {
229  $OUTPUT->reset();
230  $RCMAIL->plugins->exec_hook('keep_alive', array());
231  $OUTPUT->send();
232}
233else if ($RCMAIL->action == 'save-pref') {
234  include INSTALL_PATH . 'program/steps/utils/save_pref.inc';
235}
236
237
238// include task specific functions
239if (is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/func.inc'))
240  include_once $incfile;
241
242// allow 5 "redirects" to another action
243$redirects = 0; $incstep = null;
244while ($redirects < 5) {
245  // execute a plugin action
246  if ($RCMAIL->plugins->is_plugin_task($RCMAIL->task)) {
247    if (!$RCMAIL->action) $RCMAIL->action = 'index';
248    $RCMAIL->plugins->exec_action($RCMAIL->task.'.'.$RCMAIL->action);
249    break;
250  }
251  else if (preg_match('/^plugin\./', $RCMAIL->action)) {
252    $RCMAIL->plugins->exec_action($RCMAIL->action);
253    break;
254  }
255  // try to include the step file
256  else if (($stepfile = $RCMAIL->get_action_file())
257    && is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/'.$stepfile)
258  ) {
259    include $incfile;
260    $redirects++;
261  }
262  else {
263    break;
264  }
265}
266
267
268// parse main template (default)
269$OUTPUT->send($RCMAIL->task);
270
271
272// if we arrive here, something went wrong
273raise_error(array(
274  'code' => 404,
275  'type' => 'php',
276  'line' => __LINE__,
277  'file' => __FILE__,
278  'message' => "Invalid request"), true, true);
279
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