Viewing file:  redirect.php (7.44 KB) -rw-r--r--
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<?php
/**
* Prevents users from reposting their form data after a successful logout.
*
* Derived from webmail.php by Ralf Kraudelt <kraude@wiwi.uni-rostock.de>
*
* @copyright 1999-2010 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: redirect.php 13946 2010-06-21 00:43:54Z pdontthink $
* @package squirrelmail
*/
/** This is the redirect page */
define('PAGE_NAME', 'redirect');
/**
* Path for SquirrelMail required files.
* @ignore
*/
define('SM_PATH','../');
/* SquirrelMail required files. */
require_once(SM_PATH . 'functions/global.php');
require_once(SM_PATH . 'functions/i18n.php');
require_once(SM_PATH . 'functions/strings.php');
require_once(SM_PATH . 'functions/prefs.php');
require_once(SM_PATH . 'functions/imap.php');
require_once(SM_PATH . 'functions/plugin.php');
require_once(SM_PATH . 'functions/constants.php');
require_once(SM_PATH . 'functions/page_header.php');
// Disable Browser Caching
//
header('Cache-Control: no-cache, no-store, must-revalidate');
header('Pragma: no-cache');
header('Expires: Sat, 1 Jan 2000 00:00:00 GMT');
$location = get_location();
sqsession_is_active();
sqsession_unregister ('user_is_logged_in');
sqsession_register ($base_uri, 'base_uri');
/* get globals we me need */
sqGetGlobalVar('login_username', $login_username);
sqGetGlobalVar('secretkey', $secretkey);
sqGetGlobalVar('js_autodetect_results', $js_autodetect_results);
if(!sqGetGlobalVar('squirrelmail_language', $squirrelmail_language) || $squirrelmail_language == '') {
$squirrelmail_language = $squirrelmail_default_language;
}
if (!sqgetGlobalVar('mailtodata', $mailtodata)) {
$mailtodata = '';
}
/* end of get globals */
set_up_language($squirrelmail_language, true);
/* Refresh the language cookie. */
sqsetcookie('squirrelmail_language', $squirrelmail_language, time()+2592000, $base_uri);
if (!isset($login_username)) {
include_once(SM_PATH . 'functions/display_messages.php' );
logout_error( _("You must be logged in to access this page.") );
exit;
}
if (!sqsession_is_registered('user_is_logged_in')) {
do_hook ('login_before');
/**
* Regenerate session id to make sure that authenticated session uses
* different ID than one used before user authenticated. This is a
* countermeasure against session fixation attacks.
* NB: session_regenerate_id() was added in PHP 4.3.2 (and new session
* cookie is only sent out in this call as of PHP 4.3.3), but PHP 4
* is not vulnerable to session fixation problems in SquirrelMail
* because it prioritizes $base_uri subdirectory cookies differently
* than PHP 5, which is otherwise vulnerable. If we really want to,
* we could define our own session_regenerate_id() when one does not
* exist, but there seems to be no reason to do so.
*/
if (function_exists('session_regenerate_id')) {
session_regenerate_id();
// re-send session cookie so we get the right parameters on it
// (such as HTTPOnly, if necessary - PHP doesn't do this itself
sqsetcookie(session_name(),session_id(),false,$base_uri);
}
$onetimepad = OneTimePadCreate(strlen($secretkey));
$key = OneTimePadEncrypt($secretkey, $onetimepad);
sqsession_register($onetimepad, 'onetimepad');
/* remove redundant spaces */
$login_username = trim($login_username);
/* Verify that username and password are correct. */
if ($force_username_lowercase) {
$login_username = strtolower($login_username);
}
$imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
$sqimap_capabilities = sqimap_capability($imapConnection);
sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
$delimiter = sqimap_get_delimiter ($imapConnection);
sqimap_logout($imapConnection);
sqsession_register($delimiter, 'delimiter');
$username = $login_username;
sqsession_register ($username, 'username');
sqsetcookie('key', $key, 0, $base_uri);
do_hook ('login_verified');
}
/* Set the login variables. */
$user_is_logged_in = true;
$just_logged_in = true;
/* And register with them with the session. */
sqsession_register ($user_is_logged_in, 'user_is_logged_in');
sqsession_register ($just_logged_in, 'just_logged_in');
/* parse the accepted content-types of the client */
$attachment_common_types = array();
$attachment_common_types_parsed = array();
sqsession_register($attachment_common_types, 'attachment_common_types');
sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
!isset($attachment_common_types_parsed[$http_accept]) ) {
attachment_common_parse($http_accept);
}
/* Complete autodetection of Javascript. */
$javascript_setting = getPref
($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
$js_autodetect_results = (isset($js_autodetect_results) ?
$js_autodetect_results : SMPREF_JS_OFF);
/* See if it's set to "Always on" */
$js_pref = SMPREF_JS_ON;
if ($javascript_setting != SMPREF_JS_ON){
if ($javascript_setting == SMPREF_JS_AUTODETECT) {
if ($js_autodetect_results == SMPREF_JS_OFF) {
$js_pref = SMPREF_JS_OFF;
}
} else {
$js_pref = SMPREF_JS_OFF;
}
}
/* Update the prefs */
setPref($data_dir, $username, 'javascript_on', $js_pref);
/* Compute the URL to forward the user to. */
$redirect_url = 'webmail.php';
if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
sqsession_unregister('session_expired_location');
if ( $session_expired_location == 'compose' ) {
$compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
if ($compose_new_win) {
// do not prefix $location here because $session_expired_location is set to the PAGE_NAME
// of the last page
$redirect_url = $session_expired_location . '.php';
} else {
$redirect_url = 'webmail.php?right_frame=' . urlencode($session_expired_location . '.php');
}
} else if ($session_expired_location != 'webmail'
&& $session_expired_location != 'left_main') {
$redirect_url = 'webmail.php?right_frame=' . urlencode($session_expired_location . '.php');
}
unset($session_expired_location);
}
if($mailtodata != '') {
$redirect_url = $location . '/webmail.php?right_frame=compose.php&mailtodata=';
$redirect_url .= urlencode($mailtodata);
}
/* Write session data and send them off to the appropriate page. */
session_write_close();
header("Location: $redirect_url");
/* --------------------- end main ----------------------- */
function attachment_common_parse($str) {
global $attachment_common_types, $attachment_common_types_parsed;
$attachment_common_types_parsed[$str] = true;
/*
* Replace ", " with "," and explode on that as Mozilla 1.x seems to
* use "," to seperate whilst IE, and earlier versions of Mozilla use
* ", " to seperate
*/
$str = str_replace( ', ' , ',' , $str );
$types = explode(',', $str);
foreach ($types as $val) {
// Ignore the ";q=1.0" stuff
if (strpos($val, ';') !== false)
$val = substr($val, 0, strpos($val, ';'));
if (! isset($attachment_common_types[$val])) {
$attachment_common_types[$val] = true;
}
}
sqsession_register($attachment_common_types, 'attachment_common_types');
}
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