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) 1999-2002 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 */
  14
  15 /* Path for SquirrelMail required files. */
  16 define('SM_PATH','../');
  17
  18 /* SquirrelMail required files. */
  19 require_once(SM_PATH . 'functions/i18n.php');
  20 require_once(SM_PATH . 'functions/strings.php');
  21 require_once(SM_PATH . 'config/config.php');
  22 require_once(SM_PATH . 'functions/prefs.php');
  23 require_once(SM_PATH . 'functions/imap.php');
  24 require_once(SM_PATH . 'functions/plugin.php');
  25 require_once(SM_PATH . 'functions/constants.php');
  26 require_once(SM_PATH . 'functions/page_header.php');
  27 require_once(SM_PATH . 'functions/global.php');
  28
  29 // Remove slashes if PHP added them
  30 $REQUEST_METHOD = $_SERVER['REQUEST_METHOD'];
  31 if (get_magic_quotes_gpc()) {
  32     if ($REQUEST_METHOD == 'POST') {
  33         RemoveSlashes($_POST);
  34     } else if ($REQUEST_METHOD == 'GET') {
  35         RemoveSlashes($_GET);
  36     }
  37 }
  38
  39 /* Before starting the session, the base URI must be known. Assuming */
  40 /* that this file is in the src/ subdirectory (or something).        */
  41 if (!function_exists('sqm_baseuri')){
  42     require_once(SM_PATH . 'functions/display_messages.php');
  43 }
  44 $base_uri = sqm_baseuri();
  45
  46 header('Pragma: no-cache');
  47 $location = get_location();
  48
  49 session_set_cookie_params (0, $base_uri);
  50 session_start();
  51
  52 sqsession_unregister ('user_is_logged_in');
  53 sqsession_register ($base_uri, 'base_uri');
  54
  55 /* get globals we me need */
  56 if (isset($_POST['login_username'])) {
  57     $login_username = $_POST['login_username'];
  58 }
  59 if (!isset($_COOKIE['squirrelmail_language']) ||
  60     $squirrelmail_language == '' ) {
  61     $squirrelmail_language = $squirrelmail_default_language;
  62 }
  63 else {
  64     $squirrelmail_language = $_COOKIE['squirrelmail_language'];
  65 }
  66 if (isset($_POST['secretkey'])) {
  67     $secretkey = $_POST['secretkey'];
  68 }
  69 if (isset($_POST['js_autodetect_results'])) {
  70     $js_autodetect_results = $_POST['js_autodetect_results'];
  71 }
  72 /* end of get globals */
  73
  74 set_up_language($squirrelmail_language, true);
  75 /* Refresh the language cookie. */
  76 setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,
  77           $base_uri);
  78
  79 if (!isset($login_username)) {
  80     include_once( '../functions/display_messages.php' );
  81     logout_error( _("You must be logged in to access this page.") );
  82     exit;
  83 }
  84
  85 if (!sqsession_is_registered('user_is_logged_in')) {
  86     do_hook ('login_before');
  87
  88     $onetimepad = OneTimePadCreate(strlen($secretkey));
  89     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  90     sqsession_register($onetimepad, 'onetimepad');
  91
  92     /* remove redundant spaces */
  93     $login_username = trim($login_username);
  94
  95     /* Verify that username and password are correct. */
  96     if ($force_username_lowercase) {
  97         $login_username = strtolower($login_username);
  98     }
  99
 100     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
 101     if (!$imapConnection) {
 102         $errTitle = _("There was an error contacting the mail server.");
 103         $errString = $errTitle . "<br>\n".
 104                      _("Contact your administrator for help.");
 105         include_once( '../functions/display_messages.php' );
 106         logout_error( $errString, $errTitle );
 107         exit;
 108     } else {
 109         $sqimap_capabilities = sqimap_capability($imapConnection);
 110         sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
 111         $delimiter = sqimap_get_delimiter ($imapConnection);
 112     }
 113     sqimap_logout($imapConnection);
 114     sqsession_register($delimiter, 'delimiter');
 115
 116     $username = $login_username;
 117     sqsession_register ($username, 'username');
 118     setcookie('key', $key, 0, $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 $debug = false;
 138
 139 if (isset($_SERVER['HTTP_ACCEPT']) &&
 140     !isset($attachment_common_types_parsed[$_SERVER['HTTP_ACCEPT']])) {
 141     attachment_common_parse($_SERVER['HTTP_ACCEPT'], $debug);
 142 }
 143 if (isset($_SERVER['HTTP_ACCEPT']) &&
 144     !isset($attachment_common_types_parsed[$_SERVER['HTTP_ACCEPT']])) {
 145     attachment_common_parse($_SERVER['HTTP_ACCEPT'], $debug);
 146 }
 147
 148 /* Complete autodetection of Javascript. */
 149 $javascript_setting = getPref
 150     ($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 151 $js_autodetect_results = (isset($js_autodetect_results) ?
 152     $js_autodetect_results : SMPREF_JS_OFF);
 153 /* See if it's set to "Always on" */
 154 $js_pref = SMPREF_JS_ON;
 155 if ($javascript_setting != SMPREF_JS_ON){
 156     if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 157         if ($js_autodetect_results == SMPREF_JS_OFF) {
 158             $js_pref = SMPREF_JS_OFF;
 159         }
 160     } else {
 161         $js_pref = SMPREF_JS_OFF;
 162     }
 163 }
 164 /* Update the prefs */
 165 setPref($data_dir, $username, 'javascript_on', $js_pref);
 166
 167 /* Compute the URL to forward the user to. */
 168     $session_expired_location= $_SESSION['session_expired_location'];
 169     $session_expired_post= $_SESSION['session_expired_post'];
 170
 171     if (isset($session_expired_location) && $session_expired_location) {
 172        $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 173        if ($compose_new_win) {
 174           $redirect_url = $session_expired_location;
 175        } else {
 176           $redirect_url = 'webmail.php?right_frame='.urldecode($session_expired_location);
 177        }
 178        sqsession_unregister('session_expired_location');
 179        unset($session_expired_location);
 180
 181
 182     } else {
 183        $redirect_url = 'webmail.php';
 184     }
 185
 186 /* Write session data and send them off to the appropriate page. */
 187 session_write_close();
 188 header("Location: $redirect_url");
 189
 190 /* --------------------- end main ----------------------- */
 191
 192 function attachment_common_parse($str, $debug) {
 193     global $attachment_common_types, $attachment_common_types_parsed;
 194
 195     $attachment_common_types_parsed[$str] = true;
 196     $types = explode(', ', $str);
 197
 198     foreach ($types as $val) {
 199         // Ignore the ";q=1.0" stuff
 200         if (strpos($val, ';') !== false)
 201             $val = substr($val, 0, strpos($val, ';'));
 202
 203         if (! isset($attachment_common_types[$val])) {
 204             $attachment_common_types[$val] = true;
 205         }
 206     }
 207     $_SESSION['attachment_common_types'] = $attachment_common_types;
 208 }
 209
 210
 211 ?>