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 /*****************************************************************/
  16 /*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!!           ***/
  17 /*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION.             ***/
  18 /***    + Base level indent should begin at left margin, as    ***/
  19 /***      the require_once below looks.                        ***/
  20 /***    + All identation should consist of four space blocks   ***/
  21 /***    + Tab characters are evil.                             ***/
  22 /***    + all comments should use "slash-star ... star-slash"  ***/
  23 /***      style -- no pound characters, no slash-slash style   ***/
  24 /***    + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD      ***/
  25 /***      ALWAYS USE { AND } CHARACTERS!!!                     ***/
  26 /***    + Please use ' instead of ", when possible. Note "     ***/
  27 /***      should always be used in _( ) function calls.        ***/
  28 /*** Thank you for your help making the SM code more readable. ***/
  29 /*****************************************************************/
  30
  31 require_once('../functions/i18n.php');
  32 require_once('../functions/strings.php');
  33 require_once('../config/config.php');
  34 require_once('../functions/prefs.php');
  35 require_once('../functions/imap.php');
  36 require_once('../functions/plugin.php');
  37 require_once('../functions/constants.php');
  38
  39 function attachment_common_parse($str, $debug) {
  40     global $attachment_common_types, $attachment_common_types_parsed;
  41
  42     $attachment_common_types_parsed[$str] = true;
  43     $types = explode(', ', $str);
  44
  45     foreach ($types as $val)
  46     {
  47         // Ignore the ";q=1.0" stuff
  48         if (strpos($val, ';') !== false)
  49             $val = substr($val, 0, strpos($val, ';'));
  50
  51         if (! isset($attachment_common_types[$val])) {
  52             $attachment_common_types[$val] = true;
  53         }
  54     }
  55 }
  56
  57
  58 /* Before starting the session, the base URI must be known. Assuming */
  59 /* that this file is in the src/ subdirectory (or something).        */
  60 ereg ("(^.*/)[^/]+/[^/]+$", $PHP_SELF, $regs);
  61 $base_uri = $regs[1];
  62
  63 header('Pragma: no-cache');
  64 $location = get_location();
  65
  66 session_set_cookie_params (0, $base_uri);
  67 session_start();
  68
  69 session_unregister ('user_is_logged_in');
  70 session_register ('base_uri');
  71
  72 if (! isset($squirrelmail_language) ||
  73     $squirrelmail_language == '' ) {
  74     $squirrelmail_language = $squirrelmail_default_language;
  75 }
  76 set_up_language($squirrelmail_language, true);
  77 /* Refresh the language cookie. */
  78 setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000,$base_uri);
  79
  80 if (!isset($login_username)) {
  81     echo "<HTML><BODY BGCOLOR=\"#ffffff\">\n" .
  82         "<BR>&nbsp;<BR>\n" .
  83         "<CENTER>\n" .
  84         '<B>' . _("You must be logged in to access this page.") . "</B><BR>" .
  85         '<A HREF="../src/login.php">'  . _("Go to the login page") . "</A>\n" .
  86         "</CENTER>\n" .
  87         "</BODY></HTML>\n";
  88     exit;
  89 }
  90
  91 if (!session_is_registered('user_is_logged_in')) {
  92     do_hook ('login_before');
  93
  94     $onetimepad = OneTimePadCreate(strlen($secretkey));
  95     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  96     session_register('onetimepad');
  97
  98     /* Verify that username and password are correct. */
  99     if ($force_username_lowercase) {
 100         $login_username = strtolower($login_username);
 101     }
 102
 103     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
 104     if (!$imapConnection) {
 105         echo "<html><body bgcolor=\"#ffffff\">\n".
 106             "<br> <br>\n".
 107             "<center>\n".
 108             '<b>' . _("There was an error contacting the mail server.") . "</b><br>\n".
 109             _("Contact your administrator for help.") . "\n".
 110             "</center>\n".
 111             "</body></html>\n";
 112         exit;
 113     } else {
 114         $delimiter = sqimap_get_delimiter ($imapConnection);
 115     }
 116     sqimap_logout($imapConnection);
 117     session_register('delimiter');
 118
 119     $username = $login_username;
 120     session_register ('username');
 121     setcookie('key', $key, 0, $base_uri);
 122     do_hook ('login_verified');
 123
 124 }
 125
 126 /* Set the login variables. */
 127 $user_is_logged_in = true;
 128 $just_logged_in = true;
 129
 130 /* And register with them with the session. */
 131 session_register ('user_is_logged_in');
 132 session_register ('just_logged_in');
 133
 134 /* parse the accepted content-types of the client */
 135 $attachment_common_types = array();
 136 $attachment_common_types_parsed = array();
 137 session_register('attachment_common_types');
 138 session_register('attachment_common_types_parsed');
 139
 140 $debug = false;
 141 if (isset($HTTP_SERVER_VARS['HTTP_ACCEPT']) &&
 142     !isset($attachment_common_types_parsed[$HTTP_SERVER_VARS['HTTP_ACCEPT']]))
 143     attachment_common_parse($HTTP_SERVER_VARS['HTTP_ACCEPT'], $debug);
 144 if (isset($HTTP_ACCEPT) &&
 145     !isset($attachment_common_types_parsed[$HTTP_ACCEPT]))
 146     attachment_common_parse($HTTP_ACCEPT, $debug);
 147
 148
 149 /* Complete autodetection of Javascript. */
 150 checkForPrefs($data_dir, $username);
 151 $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 152 $js_autodetect_results = (isset($js_autodetect_results) ? $js_autodetect_results : SMPREF_JS_OFF);
 153 if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 154     if ($js_autodetect_results == SMPREF_JS_ON) {
 155         setPref($data_dir, $username, 'javascript_on', SMPREF_JS_ON);
 156     } else {
 157         setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 158     }
 159 } else {
 160     setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 161 }
 162
 163 /* Compute the URL to forward the user to. */
 164 if(isset($rcptemail)) {
 165     $redirect_url = 'webmail.php?right_frame=compose.php&rcptaddress=';
 166     $redirect_url .= urlencode($rcptemail);
 167 } else {
 168     $redirect_url = 'webmail.php';
 169 }
 170
 171 /* Send them off to the appropriate page. */
 172 header("Location: $redirect_url");
 173
 174 ?>