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 */
  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
 102     $sqimap_capabilities = sqimap_capability($imapConnection);
 103     sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
 104     $delimiter = sqimap_get_delimiter ($imapConnection);
 105
 106     sqimap_logout($imapConnection);
 107     sqsession_register($delimiter, 'delimiter');
 108
 109     $username = $login_username;
 110     sqsession_register ($username, 'username');
 111     setcookie('key', $key, 0, $base_uri);
 112     do_hook ('login_verified');
 113
 114 }
 115
 116 /* Set the login variables. */
 117 $user_is_logged_in = true;
 118 $just_logged_in = true;
 119
 120 /* And register with them with the session. */
 121 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 122 sqsession_register ($just_logged_in, 'just_logged_in');
 123
 124 /* parse the accepted content-types of the client */
 125 $attachment_common_types = array();
 126 $attachment_common_types_parsed = array();
 127 sqsession_register($attachment_common_types, 'attachment_common_types');
 128 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 129
 130 $debug = false;
 131
 132 if (isset($_SERVER['HTTP_ACCEPT']) &&
 133     !isset($attachment_common_types_parsed[$_SERVER['HTTP_ACCEPT']])) {
 134     attachment_common_parse($_SERVER['HTTP_ACCEPT'], $debug);
 135 }
 136
 137 /* Complete autodetection of Javascript. */
 138 $javascript_setting = getPref
 139     ($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 140 $js_autodetect_results = (isset($js_autodetect_results) ?
 141     $js_autodetect_results : SMPREF_JS_OFF);
 142 /* See if it's set to "Always on" */
 143 $js_pref = SMPREF_JS_ON;
 144 if ($javascript_setting != SMPREF_JS_ON){
 145     if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 146         if ($js_autodetect_results == SMPREF_JS_OFF) {
 147             $js_pref = SMPREF_JS_OFF;
 148         }
 149     } else {
 150         $js_pref = SMPREF_JS_OFF;
 151     }
 152 }
 153 /* Update the prefs */
 154 setPref($data_dir, $username, 'javascript_on', $js_pref);
 155
 156 /* Compute the URL to forward the user to. */
 157     if (isset($_SESSION['session_expired_location'])) {
 158         $session_expired_location= $_SESSION['session_expired_location'];
 159     } else {
 160         $session_expired_location=false;
 161     }
 162     if (isset($session_expired_location) && $session_expired_location) {
 163        $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 164        if ($compose_new_win) {
 165           $redirect_url = $session_expired_location;
 166        } else {
 167           $redirect_url = 'webmail.php?right_frame='.urldecode($session_expired_location);
 168        }
 169        sqsession_unregister('session_expired_location');
 170        unset($session_expired_location);
 171     } else {
 172        $redirect_url = 'webmail.php';
 173     }
 174
 175 /* Write session data and send them off to the appropriate page. */
 176 session_write_close();
 177 header("Location: $redirect_url");
 178
 179 /* --------------------- end main ----------------------- */
 180
 181 function attachment_common_parse($str, $debug) {
 182     global $attachment_common_types, $attachment_common_types_parsed;
 183
 184     $attachment_common_types_parsed[$str] = true;
 185
 186     /*
 187      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 188      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 189      * ", " to seperate
 190      */
 191
 192     $str = str_replace( ', ' , ',' , $str );
 193     $types = explode(',', $str);
 194
 195     foreach ($types as $val) {
 196         // Ignore the ";q=1.0" stuff
 197         if (strpos($val, ';') !== false)
 198             $val = substr($val, 0, strpos($val, ';'));
 199
 200         if (! isset($attachment_common_types[$val])) {
 201             $attachment_common_types[$val] = true;
 202         }
 203     }
 204     $_SESSION['attachment_common_types'] = $attachment_common_types;
 205 }
 206
 207
 208 ?>