githubFork/roundcubemail.git

thomascube

2011-11-16 0a5ddce661b3f90f7b19ea20d25ae3a896550bb2

commit \| author \| age
4e17e6	1	<?php
T	2	/*
a6f90e	3	+-------------------------------------------------------------------------+
e019f2	4	\| Roundcube Webmail IMAP Client \|
0a5ddc	5	\| Version 0.7-beta2 \|
a6f90e	6	\| \|
f5e7b3	7	\| Copyright (C) 2005-2011, The Roundcube Dev Team \|
a6f90e	8	\| \|
A	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	+-------------------------------------------------------------------------+
4e17e6	25
T	26	$Id$
	27
	28	*/
15a9d1	29
47124c	30	// include environment
T	31	require_once 'program/include/iniset.php';
15a9d1	32
48bc52	33	// init application, start session, init output class, etc.
83a763	34	$RCMAIL = rcmail::get_instance();
T	35
9e54e6	36	// Make the whole PHP output non-cacheable (#1487797)
A	37	send_nocacheing_headers();
	38
d51c93	39	// turn on output buffering
A	40	ob_start();
8affba	41
8c72e3	42	// check if config files had errors
T	43	if ($err_str = $RCMAIL->config->get_error()) {
	44	raise_error(array(
	45	'code' => 601,
	46	'type' => 'php',
	47	'message' => $err_str), false, true);
	48	}
	49
8affba	50	// check DB connections and exit on failure
47124c	51	if ($err_str = $DB->is_error()) {
f11541	52	raise_error(array(
T	53	'code' => 603,
	54	'type' => 'db',
	55	'message' => $err_str), FALSE, TRUE);
	56	}
8affba	57
4e17e6	58	// error steps
197601	59	if ($RCMAIL->action=='error' && !empty($_GET['_code'])) {
4e17e6	60	raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);
47124c	61	}
570f0b	62
f5d61d	63	// check if https is required (for login) and redirect if necessary
T	64	if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
	65	$https_port = is_bool($force_https) ? 443 : $force_https;
5818e4	66	if (!rcube_https_check($https_port)) {
76c94b	67	$host = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
A	68	$host .= ($https_port != 443 ? ':' . $https_port : '');
	69	header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
f5d61d	70	exit;
T	71	}
	72	}
	73
cc97ea	74	// trigger startup plugin hook
T	75	$startup = $RCMAIL->plugins->exec_hook('startup', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
	76	$RCMAIL->set_task($startup['task']);
	77	$RCMAIL->action = $startup['action'];
	78
4e17e6	79	// try to log in
9b94eb	80	if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
784a42	81	$request_valid = $_SESSION['temp'] && $RCMAIL->check_request(RCUBE_INPUT_POST, 'login');
T	82
0129d7	83	// purge the session in case of new login when a session already exists
cc97ea	84	$RCMAIL->kill_session();
5f560e	85
cc97ea	86	$auth = $RCMAIL->plugins->exec_hook('authenticate', array(
T	87	'host' => $RCMAIL->autoselect_host(),
	88	'user' => trim(get_input_value('_user', RCUBE_INPUT_POST)),
5f560e	89	'pass' => get_input_value('_pass', RCUBE_INPUT_POST, true,
A	90	$RCMAIL->config->get('password_charset', 'ISO-8859-1')),
446364	91	'cookiecheck' => true,
784a42	92	'valid' => $request_valid,
64608b	93	));
cc97ea	94
4e17e6	95	// check if client supports cookies
446364	96	if ($auth['cookiecheck'] && empty($_COOKIE)) {
f11541	97	$OUTPUT->show_message("cookiesdisabled", 'warning');
T	98	}
784a42	99	else if ($auth['valid'] && !$auth['abort'] &&
64608b	100	!empty($auth['host']) && !empty($auth['user']) &&
4cfe66	101	$RCMAIL->login($auth['user'], $auth['pass'], $auth['host'])
A	102	) {
	103	// create new session ID, don't destroy the current session
c294ea	104	// it was destroyed already by $RCMAIL->kill_session() above
4cfe66	105	$RCMAIL->session->remove('temp');
c294ea	106	$RCMAIL->session->regenerate_id(false);
aad6e2	107
T	108	// send auth cookie if necessary
cf2da2	109	$RCMAIL->session->set_auth_cookie();
aad6e2	110
5e0045	111	// log successful login
354455	112	rcmail_log_login();
10eedb	113
cc97ea	114	// restore original request parameters
88007c	115	$query = array();
32234d	116	if ($url = get_input_value('_url', RCUBE_INPUT_POST)) {
cc97ea	117	parse_str($url, $query);
c294ea	118
32234d	119	// prevent endless looping on login page
T	120	if ($query['_task'] == 'login')
	121	unset($query['_task']);
	122	}
cc97ea	123
T	124	// allow plugins to control the redirect url after login success
32234d	125	$redir = $RCMAIL->plugins->exec_hook('login_after', $query + array('_task' => 'mail'));
fcc7f8	126	unset($redir['abort'], $redir['_err']);
5e0045	127
4e17e6	128	// send redirect
cc97ea	129	$OUTPUT->redirect($redir);
4e17e6	130	}
47124c	131	else {
6d99f9	132	$error_code = is_object($IMAP) ? $IMAP->get_error_code() : -1;
A	133
784a42	134	$OUTPUT->show_message($error_code < -1 ? 'imaperror' : (!$auth['valid'] ? 'invalidrequest' : 'loginfailed'), 'warning');
8fcc3e	135	$RCMAIL->plugins->exec_hook('login_failed', array(
6d99f9	136	'code' => $error_code, 'host' => $auth['host'], 'user' => $auth['user']));
1854c4	137	$RCMAIL->kill_session();
f11541	138	}
T	139	}
4e17e6	140
de62f0	141	// end session (after optional referer check)
T	142	else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id']) && (!$RCMAIL->config->get('referer_check') \|\| rcube_check_referer())) {
7ef47e	143	$userdata = array('user' => $_SESSION['username'], 'host' => $_SESSION['imap_host'], 'lang' => $RCMAIL->user->language);
f11541	144	$OUTPUT->show_message('loggedout');
1854c4	145	$RCMAIL->logout_actions();
T	146	$RCMAIL->kill_session();
7ef47e	147	$RCMAIL->plugins->exec_hook('logout_after', $userdata);
f11541	148	}
4e17e6	149
bac7d1	150	// check session and auth cookie
9b94eb	151	else if ($RCMAIL->task != 'login' && $_SESSION['user_id'] && $RCMAIL->action != 'send') {
cf2da2	152	if (!$RCMAIL->session->check_auth()) {
1854c4	153	$RCMAIL->kill_session();
fcc7f8	154	$session_error = true;
4e17e6	155	}
f11541	156	}
4e17e6	157
T	158	// not logged in -> show login page
197601	159	if (empty($RCMAIL->user->ID)) {
fcc7f8	160	// log session failures
6354da	161	if (($task = get_input_value('_task', RCUBE_INPUT_GPC)) && !in_array($task, array('login','logout')) && !$session_error && ($sess_id = $_COOKIE[ini_get('session.name')])) {
fcc7f8	162	$RCMAIL->session->log("Aborted session " . $sess_id . "; no valid session data found");
T	163	$session_error = true;
	164	}
	165
ec045b	166	if ($OUTPUT->ajax_call)
fcc7f8	167	$OUTPUT->redirect(array('_err' => 'session'), 2000);
9b94eb	168
ccc80d	169	if (!empty($_REQUEST['_framed']))
fcc7f8	170	$OUTPUT->command('redirect', $RCMAIL->url(array('_err' => 'session')));
ccc80d	171
330127	172	// check if installer is still active
83a763	173	if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
47124c	174	$OUTPUT->add_footer(html::div(array('style' => "background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em"),
T	175	html::tag('h2', array('style' => "margin-top:0.2em"), "Installer script is still accessible") .
e019f2	176	html::p(null, "The install script of your Roundcube installation is still stored in its default location!") .
A	177	html::p(null, "Please <b>remove</b> the whole <tt>installer</tt> folder from the Roundcube directory because .
47124c	178	these files may expose sensitive configuration data like server passwords and encryption keys
T	179	to the public. Make sure you cannot access the <a href=\"./installer/\">installer script</a> from your browser.")
	180	)
	181	);
	182	}
9e54e6	183
fcc7f8	184	if ($session_error \|\| $_REQUEST['_err'] == 'session')
T	185	$OUTPUT->show_message('sessionerror', 'error', null, true, -1);
249db1	186
784a42	187	$RCMAIL->set_task('login');
f11541	188	$OUTPUT->send('login');
T	189	}
249db1	190	// CSRF prevention
A	191	else {
	192	// don't check for valid request tokens in these actions
	193	$request_check_whitelist = array('login'=>1, 'spell'=>1);
4e17e6	194
249db1	195	// check client X-header to verify request origin
A	196	if ($OUTPUT->ajax_call) {
ec045b	197	if (rc_request_header('X-Roundcube-Request') != $RCMAIL->get_request_token() && !$RCMAIL->config->get('devel_mode')) {
44a352	198	header('HTTP/1.1 403 Forbidden');
249db1	199	die("Invalid Request");
A	200	}
	201	}
	202	// check request token in POST form submissions
	203	else if (!empty($_POST) && !$request_check_whitelist[$RCMAIL->action] && !$RCMAIL->check_request()) {
	204	$OUTPUT->show_message('invalidrequest', 'error');
	205	$OUTPUT->send($RCMAIL->task);
	206	}
a77cf2	207
T	208	// check referer if configured
	209	if (!$request_check_whitelist[$RCMAIL->action] && $RCMAIL->config->get('referer_check') && !rcube_check_referer()) {
	210	raise_error(array(
	211	'code' => 403,
	212	'type' => 'php',
	213	'message' => "Referer check failed"), true, true);
	214	}
249db1	215	}
4e17e6	216
370302	217	// we're ready, user is authenticated and the request is safe
A	218	$plugin = $RCMAIL->plugins->exec_hook('ready', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
	219	$RCMAIL->set_task($plugin['task']);
	220	$RCMAIL->action = $plugin['action'];
	221
	222
249db1	223	// handle special actions
48aff9	224	if ($RCMAIL->action == 'keep-alive') {
T	225	$OUTPUT->reset();
28ac5c	226	$RCMAIL->plugins->exec_hook('keep_alive', array());
48aff9	227	$OUTPUT->send();
T	228	}
249db1	229	else if ($RCMAIL->action == 'save-pref') {
4351f7	230	include INSTALL_PATH . 'program/steps/utils/save_pref.inc';
249db1	231	}
4e17e6	232
6ea6c9	233
T	234	// include task specific functions
4351f7	235	if (is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/func.inc'))
A	236	include_once $incfile;
4e17e6	237
6ea6c9	238	// allow 5 "redirects" to another action
T	239	$redirects = 0; $incstep = null;
	240	while ($redirects < 5) {
cc97ea	241	// execute a plugin action
05a631	242	if ($RCMAIL->plugins->is_plugin_task($RCMAIL->task)) {
87e58c	243	if (!$RCMAIL->action) $RCMAIL->action = 'index';
05a631	244	$RCMAIL->plugins->exec_action($RCMAIL->task.'.'.$RCMAIL->action);
T	245	break;
	246	}
	247	else if (preg_match('/^plugin\./', $RCMAIL->action)) {
cc97ea	248	$RCMAIL->plugins->exec_action($RCMAIL->action);
T	249	break;
	250	}
6ea6c9	251	// try to include the step file
68d2d5	252	else if (($stepfile = $RCMAIL->get_action_file())
4351f7	253	&& is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/'.$stepfile)
68d2d5	254	) {
4351f7	255	include $incfile;
6ea6c9	256	$redirects++;
T	257	}
	258	else {
	259	break;
	260	}
	261	}
4e17e6	262
T	263
6ea6c9	264	// parse main template (default)
197601	265	$OUTPUT->send($RCMAIL->task);
539cd4	266
T	267
	268	// if we arrive here, something went wrong
f11541	269	raise_error(array(
T	270	'code' => 404,
	271	'type' => 'php',
	272	'line' => __LINE__,
	273	'file' => __FILE__,
47124c	274	'message' => "Invalid request"), true, true);
b25dfd	275