src/redirect.php

   1 <?php
   2
   3 /**
   4  * Prevents users from reposting their form data after a successful logout.
   5  *
   6  * Derived from webmail.php by Ralf Kraudelt <kraude@wiwi.uni-rostock.de>
   7  *
   8  * @copyright &copy; 1999-2006 The SquirrelMail Project Team
   9  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  10  * @version $Id$
  11  * @package squirrelmail
  12  */
  13
  14 /**
  15  * Path for SquirrelMail required files.
  16  * @ignore
  17  */
  18 define('SM_PATH','../');
  19
  20 /* SquirrelMail required files. */
  21 require_once(SM_PATH . 'functions/global.php');
  22 require_once(SM_PATH . 'functions/i18n.php');
  23 require_once(SM_PATH . 'functions/strings.php');
  24 require_once(SM_PATH . 'config/config.php');
  25 require_once(SM_PATH . 'functions/prefs.php');
  26 require_once(SM_PATH . 'functions/imap.php');
  27 require_once(SM_PATH . 'functions/plugin.php');
  28 require_once(SM_PATH . 'functions/constants.php');
  29 require_once(SM_PATH . 'functions/page_header.php');
  30
  31 /* Before starting the session, the base URI must be known. Assuming */
  32 /* that this file is in the src/ subdirectory (or something).        */
  33 if (!function_exists('sqm_baseuri')){
  34     require_once(SM_PATH . 'functions/display_messages.php');
  35 }
  36 $base_uri = sqm_baseuri();
  37
  38 header('Pragma: no-cache');
  39 $location = get_location();
  40
  41 session_set_cookie_params (0, $base_uri);
  42 sqsession_is_active();
  43
  44 sqsession_unregister ('user_is_logged_in');
  45 sqsession_register ($base_uri, 'base_uri');
  46
  47 /* get globals we me need */
  48 sqGetGlobalVar('login_username', $login_username);
  49 sqGetGlobalVar('secretkey', $secretkey);
  50 if(!sqGetGlobalVar('squirrelmail_language', $squirrelmail_language) || $squirrelmail_language == '') {
  51     $squirrelmail_language = $squirrelmail_default_language;
  52 }
  53 if (!sqgetGlobalVar('mailto', $mailto)) {
  54     $mailto = '';
  55 }
  56
  57 /* end of get globals */
  58
  59 set_up_language($squirrelmail_language, true);
  60 /* Refresh the language cookie. */
  61 sqsetcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,
  62           $base_uri);
  63
  64 if (!isset($login_username)) {
  65     include_once(SM_PATH .  'functions/display_messages.php' );
  66     logout_error( _("You must be logged in to access this page.") );
  67     exit;
  68 }
  69
  70 if (!sqsession_is_registered('user_is_logged_in')) {
  71     do_hook ('login_before');
  72
  73     $onetimepad = OneTimePadCreate(strlen($secretkey));
  74     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  75     sqsession_register($onetimepad, 'onetimepad');
  76
  77     /* remove redundant spaces */
  78     $login_username = trim($login_username);
  79
  80     /* Verify that username and password are correct. */
  81     if ($force_username_lowercase) {
  82         $login_username = strtolower($login_username);
  83     }
  84
  85     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
  86
  87     $sqimap_capabilities = sqimap_capability($imapConnection);
  88
  89     /* Server side sorting control */
  90     if (isset($sqimap_capabilities['SORT']) && $sqimap_capabilities['SORT'] == true &&
  91         isset($disable_server_sort) && $disable_server_sort) {
  92         unset($sqimap_capabilities['SORT']);
  93     }
  94
  95     /* Thread sort control */
  96     if (isset($sqimap_capabilities['THREAD']) && $sqimap_capabilities['THREAD'] == true &&
  97         isset($disable_thread_sort) && $disable_thread_sort) {
  98         unset($sqimap_capabilities['THREAD']);
  99     }
 100
 101     sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
 102     $delimiter = sqimap_get_delimiter ($imapConnection);
 103
 104     sqimap_logout($imapConnection);
 105     sqsession_register($delimiter, 'delimiter');
 106
 107     $username = $login_username;
 108     sqsession_register ($username, 'username');
 109     sqsetcookie('key', $key, false, $base_uri);
 110     do_hook ('login_verified');
 111
 112 }
 113
 114 /* Set the login variables. */
 115 $user_is_logged_in = true;
 116 $just_logged_in = true;
 117
 118 /* And register with them with the session. */
 119 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 120 sqsession_register ($just_logged_in, 'just_logged_in');
 121
 122 /* parse the accepted content-types of the client */
 123 $attachment_common_types = array();
 124 $attachment_common_types_parsed = array();
 125 sqsession_register($attachment_common_types, 'attachment_common_types');
 126 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 127
 128 $debug = false;
 129
 130 if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
 131     !isset($attachment_common_types_parsed[$http_accept]) ) {
 132     attachment_common_parse($http_accept, $debug);
 133 }
 134
 135 /* Complete autodetection of Javascript. */
 136 checkForJavascript();
 137
 138 /* Compute the URL to forward the user to. */
 139 $redirect_url = $location . '/webmail.php';
 140
 141 if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
 142     sqsession_unregister('session_expired_location');
 143     $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 144     if ($compose_new_win) {
 145         // do not prefix $location here because $session_expired_location is set to PHP_SELF
 146         // of the last page
 147         $redirect_url = $session_expired_location;
 148     } elseif ( strpos($session_expired_location, 'webmail.php') === FALSE ) {
 149         $redirect_url = $location.'/webmail.php?right_frame='.urldecode($session_expired_location);
 150     }
 151     unset($session_expired_location);
 152 }
 153 if($mailto != '') {
 154     $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailto=';
 155     $redirect_url .= urlencode($mailto);
 156 }
 157
 158 /* Write session data and send them off to the appropriate page. */
 159 session_write_close();
 160 header("Location: $redirect_url");
 161
 162 /* --------------------- end main ----------------------- */
 163
 164 function attachment_common_parse($str, $debug) {
 165     global $attachment_common_types, $attachment_common_types_parsed;
 166
 167     $attachment_common_types_parsed[$str] = true;
 168
 169     /*
 170      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 171      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 172      * ", " to seperate
 173      */
 174
 175     $str = str_replace( ', ' , ',' , $str );
 176     $types = explode(',', $str);
 177
 178     foreach ($types as $val) {
 179         // Ignore the ";q=1.0" stuff
 180         if (strpos($val, ';') !== false)
 181             $val = substr($val, 0, strpos($val, ';'));
 182
 183         if (! isset($attachment_common_types[$val])) {
 184             $attachment_common_types[$val] = true;
 185         }
 186     }
 187     sqsession_register($attachment_common_types, 'attachment_common_types');
 188 }
 189
 190 ?>