src/redirect.php

   1 <?php
   2
   3 /**
   4 * redirect.php
   5 * Derived from webmail.php by Ralf Kraudelt <kraude@wiwi.uni-rostock.de>
   6 *
   7 * Copyright (c) 1999-2004 The SquirrelMail Project Team
   8 * Licensed under the GNU GPL. For full terms see the file COPYING.
   9 *
  10 * Prevents users from reposting their form data after a successful logout.
  11 *
  12 * @version $Id$
  13 * @package squirrelmail
  14 */
  15
  16 /**
  17  * Path for SquirrelMail required files.
  18  * @ignore
  19  */
  20 define('SM_PATH','../');
  21
  22 /* SquirrelMail required files. */
  23 require_once(SM_PATH . 'functions/global.php');
  24 require_once(SM_PATH . 'functions/i18n.php');
  25 require_once(SM_PATH . 'functions/strings.php');
  26 require_once(SM_PATH . 'config/config.php');
  27 require_once(SM_PATH . 'functions/prefs.php');
  28 require_once(SM_PATH . 'functions/imap.php');
  29 require_once(SM_PATH . 'functions/plugin.php');
  30 require_once(SM_PATH . 'functions/constants.php');
  31 require_once(SM_PATH . 'functions/page_header.php');
  32
  33 /* Before starting the session, the base URI must be known. Assuming */
  34 /* that this file is in the src/ subdirectory (or something).        */
  35 if (!function_exists('sqm_baseuri')){
  36     require_once(SM_PATH . 'functions/display_messages.php');
  37 }
  38 $base_uri = sqm_baseuri();
  39
  40 header('Pragma: no-cache');
  41 $location = get_location();
  42
  43 sqsession_is_active();
  44
  45 sqsession_unregister ('user_is_logged_in');
  46 sqsession_register ($base_uri, 'base_uri');
  47
  48 /* get globals we me need */
  49 sqGetGlobalVar('login_username', $login_username);
  50 sqGetGlobalVar('secretkey', $secretkey);
  51 if(!sqGetGlobalVar('squirrelmail_language', $squirrelmail_language) || $squirrelmail_language == '') {
  52         $squirrelmail_language = $squirrelmail_default_language;
  53 }
  54 if (!sqgetGlobalVar('mailto', $mailto)) {
  55     $mailto = '';
  56 }
  57
  58 /* end of get globals */
  59
  60 set_up_language($squirrelmail_language, true);
  61 /* Refresh the language cookie. */
  62 setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,
  63           $base_uri);
  64
  65 if (!isset($login_username)) {
  66     include_once(SM_PATH .  'functions/display_messages.php' );
  67     logout_error( _("You must be logged in to access this page.") );
  68     exit;
  69 }
  70
  71 if (!sqsession_is_registered('user_is_logged_in')) {
  72     do_hook ('login_before');
  73
  74     $onetimepad = OneTimePadCreate(strlen($secretkey));
  75     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  76     sqsession_register($onetimepad, 'onetimepad');
  77
  78     /* remove redundant spaces */
  79     $login_username = trim($login_username);
  80
  81     /* Verify that username and password are correct. */
  82     if ($force_username_lowercase) {
  83         $login_username = strtolower($login_username);
  84     }
  85
  86     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
  87
  88     $sqimap_capabilities = sqimap_capability($imapConnection);
  89     sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
  90     $delimiter = sqimap_get_delimiter ($imapConnection);
  91
  92     sqimap_logout($imapConnection);
  93     sqsession_register($delimiter, 'delimiter');
  94
  95     $username = $login_username;
  96     sqsession_register ($username, 'username');
  97     setcookie('key', $key, 0, $base_uri);
  98     do_hook ('login_verified');
  99
 100 }
 101
 102 /* Set the login variables. */
 103 $user_is_logged_in = true;
 104 $just_logged_in = true;
 105
 106 /* And register with them with the session. */
 107 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 108 sqsession_register ($just_logged_in, 'just_logged_in');
 109
 110 /* parse the accepted content-types of the client */
 111 $attachment_common_types = array();
 112 $attachment_common_types_parsed = array();
 113 sqsession_register($attachment_common_types, 'attachment_common_types');
 114 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 115
 116 $debug = false;
 117
 118 if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
 119     !isset($attachment_common_types_parsed[$http_accept]) ) {
 120     attachment_common_parse($http_accept, $debug);
 121 }
 122
 123 /* Complete autodetection of Javascript. */
 124 checkForJavascript();
 125
 126 /* Compute the URL to forward the user to. */
 127 $redirect_url = $location . '/webmail.php';
 128
 129 if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
 130     sqsession_unregister('session_expired_location');
 131     $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 132     if ($compose_new_win) {
 133         // do not prefix $location here because $session_expired_location is set to PHP_SELF
 134         // of the last page
 135         $redirect_url = $session_expired_location;
 136     } elseif ( strpos($session_expired_location, 'webmail.php') === FALSE ) {
 137         $redirect_url = $location.'/webmail.php?right_frame='.urldecode($session_expired_location);
 138     }
 139     unset($session_expired_location);
 140 }
 141 if($mailto != '') {
 142     $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailto=';
 143     $redirect_url .= $mailto;
 144 }
 145
 146 /* Write session data and send them off to the appropriate page. */
 147 session_write_close();
 148 header("Location: $redirect_url");
 149
 150 /* --------------------- end main ----------------------- */
 151
 152 function attachment_common_parse($str, $debug) {
 153     global $attachment_common_types, $attachment_common_types_parsed;
 154
 155     $attachment_common_types_parsed[$str] = true;
 156
 157     /*
 158      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 159      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 160      * ", " to seperate
 161      */
 162
 163     $str = str_replace( ', ' , ',' , $str );
 164     $types = explode(',', $str);
 165
 166     foreach ($types as $val) {
 167         // Ignore the ";q=1.0" stuff
 168         if (strpos($val, ';') !== false)
 169             $val = substr($val, 0, strpos($val, ';'));
 170
 171         if (! isset($attachment_common_types[$val])) {
 172             $attachment_common_types[$val] = true;
 173         }
 174     }
 175     sqsession_register($attachment_common_types, 'attachment_common_types');
 176 }
 177
 178 ?>