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     sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
  89     $delimiter = sqimap_get_delimiter ($imapConnection);
  90
  91     sqimap_logout($imapConnection);
  92     sqsession_register($delimiter, 'delimiter');
  93
  94     $username = $login_username;
  95     sqsession_register ($username, 'username');
  96     sqsetcookie('key', $key, false, $base_uri);
  97     do_hook ('login_verified');
  98
  99 }
 100
 101 /* Set the login variables. */
 102 $user_is_logged_in = true;
 103 $just_logged_in = true;
 104
 105 /* And register with them with the session. */
 106 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 107 sqsession_register ($just_logged_in, 'just_logged_in');
 108
 109 /* parse the accepted content-types of the client */
 110 $attachment_common_types = array();
 111 $attachment_common_types_parsed = array();
 112 sqsession_register($attachment_common_types, 'attachment_common_types');
 113 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 114
 115 $debug = false;
 116
 117 if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
 118     !isset($attachment_common_types_parsed[$http_accept]) ) {
 119     attachment_common_parse($http_accept, $debug);
 120 }
 121
 122 /* Complete autodetection of Javascript. */
 123 checkForJavascript();
 124
 125 /* Compute the URL to forward the user to. */
 126 $redirect_url = $location . '/webmail.php';
 127
 128 if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
 129     sqsession_unregister('session_expired_location');
 130     $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 131     if ($compose_new_win) {
 132         // do not prefix $location here because $session_expired_location is set to PHP_SELF
 133         // of the last page
 134         $redirect_url = $session_expired_location;
 135     } elseif ( strpos($session_expired_location, 'webmail.php') === FALSE ) {
 136         $redirect_url = $location.'/webmail.php?right_frame='.urldecode($session_expired_location);
 137     }
 138     unset($session_expired_location);
 139 }
 140 if($mailto != '') {
 141     $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailto=';
 142     $redirect_url .= urlencode($mailto);
 143 }
 144
 145 /* Write session data and send them off to the appropriate page. */
 146 session_write_close();
 147 header("Location: $redirect_url");
 148
 149 /* --------------------- end main ----------------------- */
 150
 151 function attachment_common_parse($str, $debug) {
 152     global $attachment_common_types, $attachment_common_types_parsed;
 153
 154     $attachment_common_types_parsed[$str] = true;
 155
 156     /*
 157      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 158      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 159      * ", " to seperate
 160      */
 161
 162     $str = str_replace( ', ' , ',' , $str );
 163     $types = explode(',', $str);
 164
 165     foreach ($types as $val) {
 166         // Ignore the ";q=1.0" stuff
 167         if (strpos($val, ';') !== false)
 168             $val = substr($val, 0, strpos($val, ';'));
 169
 170         if (! isset($attachment_common_types[$val])) {
 171             $attachment_common_types[$val] = true;
 172         }
 173     }
 174     sqsession_register($attachment_common_types, 'attachment_common_types');
 175 }
 176
 177 ?>