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 require_once('../functions/page_header.php');
  39
  40 function attachment_common_parse($str, $debug) {
  41     global $attachment_common_types, $attachment_common_types_parsed;
  42
  43     $attachment_common_types_parsed[$str] = true;
  44     $types = explode(', ', $str);
  45
  46     foreach ($types as $val) {
  47         // Ignore the ";q=1.0" stuff
  48         if (strpos($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     displayHtmlHeader( _("You must be logged in to access this page.") );
  82     echo "<BODY BGCOLOR=\"#ffffff\">\n" .
  83         "<BR>&nbsp;<BR>\n" .
  84         "<CENTER>\n" .
  85         '<B>' . _("You must be logged in to access this page.") . "</B><BR>" .
  86         '<A HREF="../src/login.php">'  . _("Go to the login page") . "</A>\n" .
  87         "</CENTER>\n" .
  88         "</BODY></HTML>\n";
  89     exit;
  90 }
  91
  92 if (!session_is_registered('user_is_logged_in')) {
  93     do_hook ('login_before');
  94
  95     $onetimepad = OneTimePadCreate(strlen($secretkey));
  96     $key = OneTimePadEncrypt($secretkey, $onetimepad);
  97     session_register('onetimepad');
  98
  99     /* Verify that username and password are correct. */
 100     if ($force_username_lowercase) {
 101         $login_username = strtolower($login_username);
 102     }
 103
 104     $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0);
 105     if (!$imapConnection) {
 106         displayHtmlHeader( _("There was an error contacting the mail server.") );
 107         echo "<body bgcolor=\"#ffffff\">\n".
 108             "<br> <br>\n".
 109             "<center>\n".
 110             '<b>' . _("There was an error contacting the mail server.") . "</b><br>\n".
 111             _("Contact your administrator for help.") . "\n".
 112             "</center>\n".
 113             "</body></html>\n";
 114         exit;
 115     } else {
 116         $delimiter = sqimap_get_delimiter ($imapConnection);
 117     }
 118     sqimap_logout($imapConnection);
 119     session_register('delimiter');
 120
 121     $username = $login_username;
 122     session_register ('username');
 123     setcookie('key', $key, 0, $base_uri);
 124     do_hook ('login_verified');
 125
 126 }
 127
 128 /* Set the login variables. */
 129 $user_is_logged_in = true;
 130 $just_logged_in = true;
 131
 132 /* And register with them with the session. */
 133 session_register ('user_is_logged_in');
 134 session_register ('just_logged_in');
 135
 136 /* parse the accepted content-types of the client */
 137 $attachment_common_types = array();
 138 $attachment_common_types_parsed = array();
 139 session_register('attachment_common_types');
 140 session_register('attachment_common_types_parsed');
 141
 142 $debug = false;
 143 if (isset($HTTP_SERVER_VARS['HTTP_ACCEPT']) &&
 144     !isset($attachment_common_types_parsed[$HTTP_SERVER_VARS['HTTP_ACCEPT']]))
 145     attachment_common_parse($HTTP_SERVER_VARS['HTTP_ACCEPT'], $debug);
 146 if (isset($HTTP_ACCEPT) &&
 147     !isset($attachment_common_types_parsed[$HTTP_ACCEPT]))
 148     attachment_common_parse($HTTP_ACCEPT, $debug);
 149
 150
 151 /* Complete autodetection of Javascript. */
 152 checkForPrefs($data_dir, $username);
 153 $javascript_setting = getPref($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT);
 154 $js_autodetect_results = (isset($js_autodetect_results) ? $js_autodetect_results : SMPREF_JS_OFF);
 155 if ($javascript_setting == SMPREF_JS_AUTODETECT) {
 156     if ($js_autodetect_results == SMPREF_JS_ON) {
 157         setPref($data_dir, $username, 'javascript_on', SMPREF_JS_ON);
 158     } else {
 159         setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 160     }
 161 } else {
 162     setPref($data_dir, $username, 'javascript_on', SMPREF_JS_OFF);
 163 }
 164
 165 /* Compute the URL to forward the user to. */
 166 if(isset($rcptemail)) {
 167     $redirect_url = 'webmail.php?right_frame=compose.php&rcptaddress=';
 168     $redirect_url .= urlencode($rcptemail);
 169 } else {
 170     $redirect_url = 'webmail.php';
 171 }
 172
 173 /* Send them off to the appropriate page. */
 174 header("Location: $redirect_url");
 175
 176 ?>