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) 1999-2003 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 * $Id$
  13 * @package squirrelmail
  14 */
  15
  16 /** Path for SquirrelMail required files. */
  17 define('SM_PATH','../');
  18
  19 /* SquirrelMail required files. */
  20 require_once(SM_PATH . 'functions/global.php');
  21 require_once(SM_PATH . 'functions/i18n.php');
  22 require_once(SM_PATH . 'functions/strings.php');
  23 require_once(SM_PATH . 'config/config.php');
  24 require_once(SM_PATH . 'functions/prefs.php');
  25 require_once(SM_PATH . 'functions/imap.php');
  26 require_once(SM_PATH . 'functions/plugin.php');
  27 require_once(SM_PATH . 'functions/constants.php');
  28 require_once(SM_PATH . 'functions/page_header.php');
  29
  30 /* Before starting the session, the base URI must be known. Assuming */
  31 /* that this file is in the src/ subdirectory (or something).        */
  32 if (!function_exists('sqm_baseuri')){
  33     require_once(SM_PATH . 'functions/display_messages.php');
  34 }
  35 $base_uri = sqm_baseuri();
  36
  37 header('Pragma: no-cache');
  38 $location = get_location();
  39
  40 session_set_cookie_params (0, $base_uri);
  41 sqsession_is_active();
  42
  43 sqsession_unregister ('user_is_logged_in');
  44 sqsession_register ($base_uri, 'base_uri');
  45
  46 /* get globals we me need */
  47 sqGetGlobalVar('login_username', $login_username);
  48 sqGetGlobalVar('secretkey', $secretkey);
  49 sqGetGlobalVar('js_autodetect_results', $js_autodetect_results);
  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 setcookie('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     setcookie('key', $key, 0, $base_uri);
  97
  98     switch ($allow_frames) {
  99         case 4:    // if $use_frames unset, fall through to case 2
 100             if (isset($_POST['set_use_frames'])) {
 101                 $use_frames = $_POST['set_use_frames'];
 102                 break;
 103             }
 104         case 2:    // Do not use frames
 105             $use_frames = 0;
 106             break;
 107         case 3:    // if $use_frames unset, fall through to case 1
 108             if (isset($_POST['set_use_frames'])) {
 109                 $use_frames = $_POST['set_use_frames'];
 110                 break;
 111             }
 112         default:   // default is also to use frames
 113         case 1:    // use frames
 114             $use_frames = 1;
 115             break;
 116     }
 117
 118     setcookie('use_frames', $use_frames, time()+2592000, $base_uri);
 119     do_hook ('login_verified');
 120
 121 }
 122
 123 /* Set the login variables. */
 124 $user_is_logged_in = true;
 125 $just_logged_in = true;
 126
 127 /* And register with them with the session. */
 128 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 129 sqsession_register ($just_logged_in, 'just_logged_in');
 130
 131 /* parse the accepted content-types of the client */
 132 $attachment_common_types = array();
 133 $attachment_common_types_parsed = array();
 134 sqsession_register($attachment_common_types, 'attachment_common_types');
 135 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 136
 137 $debug = false;
 138
 139 if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
 140     !isset($attachment_common_types_parsed[$http_accept]) ) {
 141     attachment_common_parse($http_accept, $debug);
 142 }
 143
 144 /* Complete autodetection of Javascript. */
 145 $javascript_setting = getPref
 146     ($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 147 $js_autodetect_results = (isset($js_autodetect_results) ?
 148     $js_autodetect_results : SMPREF_JS_OFF);
 149 /* See if it's set to "Always on" */
 150 $js_pref = SMPREF_JS_ON;
 151 if ($javascript_setting != SMPREF_JS_ON){
 152     if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 153         if ($js_autodetect_results == SMPREF_JS_OFF) {
 154             $js_pref = SMPREF_JS_OFF;
 155         }
 156     } else {
 157         $js_pref = SMPREF_JS_OFF;
 158     }
 159 }
 160 /* Update the prefs */
 161 setPref($data_dir, $username, 'javascript_on', $js_pref);
 162
 163 /* Compute the URL to forward the user to. */
 164 $redirect_url = $location . '/webmail.php';
 165
 166 if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
 167     sqsession_unregister('session_expired_location');
 168     $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 169     if ($compose_new_win) {
 170         // do not prefix $location here because $session_expired_location is set to PHP_SELF
 171         // of the last page
 172         $redirect_url = $session_expired_location;
 173     } elseif ( strpos($session_expired_location, 'webmail.php') === FALSE ) {
 174         $redirect_url = $location.'/webmail.php?right_frame='.urldecode($session_expired_location);
 175     }
 176     unset($session_expired_location);
 177 }
 178 if($mailto != '') {
 179     $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailto=';
 180     $redirect_url .= $mailto;
 181 }
 182
 183 /* Write session data and send them off to the appropriate page. */
 184 session_write_close();
 185 header("Location: $redirect_url");
 186
 187 /* --------------------- end main ----------------------- */
 188
 189 function attachment_common_parse($str, $debug) {
 190     global $attachment_common_types, $attachment_common_types_parsed;
 191
 192     $attachment_common_types_parsed[$str] = true;
 193
 194     /*
 195      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 196      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 197      * ", " to seperate
 198      */
 199
 200     $str = str_replace( ', ' , ',' , $str );
 201     $types = explode(',', $str);
 202
 203     foreach ($types as $val) {
 204         // Ignore the ";q=1.0" stuff
 205         if (strpos($val, ';') !== false)
 206             $val = substr($val, 0, strpos($val, ';'));
 207
 208         if (! isset($attachment_common_types[$val])) {
 209             $attachment_common_types[$val] = true;
 210         }
 211     }
 212     $_SESSION['attachment_common_types'] = $attachment_common_types;
 213 }
 214
 215
 216 ?>