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) 1999-2001 The Squirrelmail Development 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      **/
  14
  15     require_once('../functions/i18n.php');
  16     require_once('../functions/strings.php');
  17     require_once('../config/config.php');
  18     require_once('../functions/prefs.php');
  19     require_once('../functions/imap.php');
  20     require_once('../functions/plugin.php');
  21     require_once('../functions/constants.php');
  22
  23     function attachment_common_parse($str, $debug) {
  24         global $attachment_common_types, $attachment_common_types_parsed;
  25
  26         $attachment_common_types_parsed[$str] = true;
  27         $types = explode(', ', $str);
  28
  29         foreach ($types as $val)
  30         {
  31             // Ignore the ";q=1.0" stuff
  32             if (strpos($val, ';') !== false)
  33                 $val = substr($val, 0, strpos($val, ';'));
  34
  35             if (! isset($attachment_common_types[$val])) {
  36                 $attachment_common_types[$val] = true;
  37             }
  38         }
  39     }
  40
  41
  42     /* Before starting the session, the base URI must be known. Assuming */
  43     /* that this file is in the src/ subdirectory (or something).        */
  44     ereg ("(^.*/)[^/]+/[^/]+$", $PHP_SELF, $regs);
  45     $base_uri = $regs[1];
  46
  47     header('Pragma: no-cache');
  48     $location = get_location();
  49
  50     session_set_cookie_params (0, $base_uri);
  51     session_start();
  52
  53     session_unregister ('user_is_logged_in');
  54     session_register ('base_uri');
  55
  56     if (! isset($squirrelmail_language) ||
  57           $squirrelmail_language == '' ) {
  58         $squirrelmail_language = $squirrelmail_default_language;
  59     }
  60     set_up_language($squirrelmail_language, true);
  61     /* Refresh the language cookie. */
  62     setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,$base_uri);
  63
  64     if (!isset($login_username)) {
  65         echo "<HTML><BODY BGCOLOR=\"#ffffff\">\n" .
  66              "<BR>&nbsp;<BR>\n" .
  67              "<CENTER>\n" .
  68              '<B>' . _("You must be logged in to access this page.") . "</B><BR>" .
  69              '<A HREF="../src/login.php">'  . _("Go to the login page") . "</A>\n" .
  70              "</CENTER>\n" .
  71              "</BODY></HTML>\n";
  72         exit;
  73     }
  74
  75     if (!session_is_registered('user_is_logged_in')) {
  76         do_hook ('login_before');
  77
  78         $onetimepad = OneTimePadCreate(strlen($secretkey));
  79         $key = OneTimePadEncrypt($secretkey, $onetimepad);
  80         session_register('onetimepad');
  81
  82         /* Verify that username and password are correct. */
  83         if ($force_username_lowercase) {
  84             $login_username = strtolower($login_username);
  85         }
  86
  87         $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
  88         if (!$imapConnection) {
  89             echo "<html><body bgcolor=\"#ffffff\">\n".
  90                  "<br> <br>\n".
  91                  "<center>\n".
  92                  '<b>' . _("There was an error contacting the mail server.") . "</b><br>\n".
  93                  _("Contact your administrator for help.") . "\n".
  94                  "</center>\n".
  95                  "</body></html>\n";
  96             exit;
  97         } else {
  98             $delimiter = sqimap_get_delimiter ($imapConnection);
  99         }
 100         sqimap_logout($imapConnection);
 101         session_register('delimiter');
 102
 103         $username = $login_username;
 104         session_register ('username');
 105         setcookie('key', $key, 0, $base_uri);
 106         do_hook ('login_verified');
 107
 108         setPref( $data_dir, $username, 'counter',
 109             getPref( $data_dir, $username, 'counter', 0 ) + 1 );
 110     }
 111
 112     /* Set the login variables. */
 113     $user_is_logged_in = true;
 114     $just_logged_in = true;
 115
 116     /* And register with them with the session. */
 117     session_register ('user_is_logged_in');
 118     session_register ('just_logged_in');
 119
 120     /* parse the accepted content-types of the client */
 121     $attachment_common_types = array();
 122     $attachment_common_types_parsed = array();
 123     session_register('attachment_common_types');
 124     session_register('attachment_common_types_parsed');
 125
 126     $debug = false;
 127     if (isset($HTTP_SERVER_VARS['HTTP_ACCEPT']) &&
 128         !isset($attachment_common_types_parsed[$HTTP_SERVER_VARS['HTTP_ACCEPT']]))
 129         attachment_common_parse($HTTP_SERVER_VARS['HTTP_ACCEPT'], $debug);
 130     if (isset($HTTP_ACCEPT) &&
 131         !isset($attachment_common_types_parsed[$HTTP_ACCEPT]))
 132         attachment_common_parse($HTTP_ACCEPT, $debug);
 133
 134
 135     /* Complete autodetection of Javascript. */
 136     checkForPrefs($data_dir, $username);
 137     $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 138     $js_autodetect_results = (isset($js_autodetect_results) ? $js_autodetect_results : SMPREF_JS_OFF);
 139     if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 140         if ($js_autodetect_results == SMPREF_JS_ON) {
 141             setPref($data_dir, $username, 'javascript_on', SMPREF_JS_ON);
 142         } else {
 143             setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 144         }
 145     } else {
 146         setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 147     }
 148
 149     /* Compute the URL to forward the user to. */
 150     if(isset($rcptemail)) {
 151         $redirect_url = 'webmail.php?right_frame=compose.php&rcptaddress=';
 152         $redirect_url .= urlencode($rcptemail);
 153     } else {
 154         $redirect_url = 'webmail.php';
 155     }
 156
 157     /* Send them off to the appropriate page. */
 158     header("Location: $redirect_url");
 159
 160 ?>