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/global.php');
  20 require_once(SM_PATH . 'functions/i18n.php');
  21 require_once(SM_PATH . 'functions/strings.php');
  22 require_once(SM_PATH . 'config/config.php');
  23 require_once(SM_PATH . 'functions/prefs.php');
  24 require_once(SM_PATH . 'functions/imap.php');
  25 require_once(SM_PATH . 'functions/plugin.php');
  26 require_once(SM_PATH . 'functions/constants.php');
  27 require_once(SM_PATH . 'functions/page_header.php');
  28
  29 /* Before starting the session, the base URI must be known. Assuming */
  30 /* that this file is in the src/ subdirectory (or something).        */
  31 if (!function_exists('sqm_baseuri')){
  32     require_once(SM_PATH . 'functions/display_messages.php');
  33 }
  34 $base_uri = sqm_baseuri();
  35
  36 header('Pragma: no-cache');
  37 $location = get_location();
  38
  39 session_set_cookie_params (0, $base_uri);
  40 session_start();
  41
  42 sqsession_unregister ('user_is_logged_in');
  43 sqsession_register ($base_uri, 'base_uri');
  44
  45 /* get globals we me need */
  46 sqGetGlobalVar('login_username', $login_username);
  47 sqGetGlobalVar('secretkey', $secretkey);
  48 sqGetGlobalVar('js_autodetect_results', $js_autodetect_results);
  49 if(!sqGetGlobalVar('squirrelmail_language', $squirrelmail_language) || $squirrelmail_language == '') {
  50         $squirrelmail_language = $squirrelmail_default_language;
  51 }
  52 if (!sqgetGlobalVar('mailto', $mailto)) {
  53     $mailto = '';
  54 }
  55
  56 /* end of get globals */
  57
  58 set_up_language($squirrelmail_language, true);
  59 /* Refresh the language cookie. */
  60 setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,
  61           $base_uri);
  62
  63 if (!isset($login_username)) {
  64     include_once(SM_PATH .  'functions/display_messages.php' );
  65     logout_error( _("You must be logged in to access this page.") );
  66     exit;
  67 }
  68
  69 if (!sqsession_is_registered('user_is_logged_in')) {
  70     do_hook ('login_before');
  71
  72     $onetimepad = OneTimePadCreate(strlen($secretkey));
  73     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  74     sqsession_register($onetimepad, 'onetimepad');
  75
  76     /* remove redundant spaces */
  77     $login_username = trim($login_username);
  78
  79     /* Verify that username and password are correct. */
  80     if ($force_username_lowercase) {
  81         $login_username = strtolower($login_username);
  82     }
  83
  84     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
  85
  86     $sqimap_capabilities = sqimap_capability($imapConnection);
  87     sqsession_register($sqimap_capabilities, 'sqimap_capabilities');
  88     $delimiter = sqimap_get_delimiter ($imapConnection);
  89
  90     sqimap_logout($imapConnection);
  91     sqsession_register($delimiter, 'delimiter');
  92
  93     $username = $login_username;
  94     sqsession_register ($username, 'username');
  95     setcookie('key', $key, 0, $base_uri);
  96     do_hook ('login_verified');
  97
  98 }
  99
 100 /* Set the login variables. */
 101 $user_is_logged_in = true;
 102 $just_logged_in = true;
 103
 104 /* And register with them with the session. */
 105 sqsession_register ($user_is_logged_in, 'user_is_logged_in');
 106 sqsession_register ($just_logged_in, 'just_logged_in');
 107
 108 /* parse the accepted content-types of the client */
 109 $attachment_common_types = array();
 110 $attachment_common_types_parsed = array();
 111 sqsession_register($attachment_common_types, 'attachment_common_types');
 112 sqsession_register($attachment_common_types_parsed, 'attachment_common_types_parsed');
 113
 114 $debug = false;
 115
 116 if ( sqgetGlobalVar('HTTP_ACCEPT', $http_accept, SQ_SERVER) &&
 117     !isset($attachment_common_types_parsed[$http_accept]) ) {
 118     attachment_common_parse($http_accept, $debug);
 119 }
 120
 121 /* Complete autodetection of Javascript. */
 122 $javascript_setting = getPref
 123     ($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 124 $js_autodetect_results = (isset($js_autodetect_results) ?
 125     $js_autodetect_results : SMPREF_JS_OFF);
 126 /* See if it's set to "Always on" */
 127 $js_pref = SMPREF_JS_ON;
 128 if ($javascript_setting != SMPREF_JS_ON){
 129     if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 130         if ($js_autodetect_results == SMPREF_JS_OFF) {
 131             $js_pref = SMPREF_JS_OFF;
 132         }
 133     } else {
 134         $js_pref = SMPREF_JS_OFF;
 135     }
 136 }
 137 /* Update the prefs */
 138 setPref($data_dir, $username, 'javascript_on', $js_pref);
 139
 140 /* Compute the URL to forward the user to. */
 141 $redirect_url = $location . '/webmail.php';
 142
 143 if ( sqgetGlobalVar('session_expired_location', $session_expired_location, SQ_SESSION) ) {
 144     sqsession_unregister('session_expired_location');
 145     $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0);
 146     if ($compose_new_win) {
 147         // do not prefix $location here because $session_expired_location is set to PHP_SELF
 148         // of the last page
 149         $redirect_url = $session_expired_location;
 150     } elseif ( strpos($session_expired_location, 'webmail.php') === FALSE ) {
 151         $redirect_url = $location.'/webmail.php?right_frame='.urldecode($session_expired_location);
 152     }
 153     unset($session_expired_location);
 154 }
 155 if($mailto != '') {
 156     $redirect_url  = $location . '/webmail.php?right_frame=compose.php&mailto=';
 157     $redirect_url .= $mailto;
 158 }
 159
 160 /* Write session data and send them off to the appropriate page. */
 161 session_write_close();
 162 header("Location: $redirect_url");
 163
 164 /* --------------------- end main ----------------------- */
 165
 166 function attachment_common_parse($str, $debug) {
 167     global $attachment_common_types, $attachment_common_types_parsed;
 168
 169     $attachment_common_types_parsed[$str] = true;
 170
 171     /*
 172      * Replace ", " with "," and explode on that as Mozilla 1.x seems to
 173      * use "," to seperate whilst IE, and earlier versions of Mozilla use
 174      * ", " to seperate
 175      */
 176
 177     $str = str_replace( ', ' , ',' , $str );
 178     $types = explode(',', $str);
 179
 180     foreach ($types as $val) {
 181         // Ignore the ";q=1.0" stuff
 182         if (strpos($val, ';') !== false)
 183             $val = substr($val, 0, strpos($val, ';'));
 184
 185         if (! isset($attachment_common_types[$val])) {
 186             $attachment_common_types[$val] = true;
 187         }
 188     }
 189     $_SESSION['attachment_common_types'] = $attachment_common_types;
 190 }
 191
 192
 193 ?>