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<?php
/*
+-----------------------------------------------------------------------+
| RoundCube Webmail IMAP Client |
| Version 0.1-stable |
| |
| Copyright (C) 2005-2007, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| |
| o Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| o Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution.|
| o The names of the authors may not be used to endorse or promote |
| products derived from this software without specific prior written |
| permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+

$Id$

*/

// application constants
define('RCMAIL_VERSION', '0.1');
define('RCMAIL_CHARSET', 'UTF-8');
define('JS_OBJECT_NAME', 'rcmail');

// define global vars
$OUTPUT_TYPE = 'html';
$INSTALL_PATH = dirname(__FILE__);
$MAIN_TASKS = array('mail','settings','addressbook','logout');

if (empty($INSTALL_PATH))
  $INSTALL_PATH = './';
else
  $INSTALL_PATH .= '/';


// make sure path_separator is defined
if (!defined('PATH_SEPARATOR'))
  define('PATH_SEPARATOR', (eregi('win', PHP_OS) ? ';' : ':'));


// RC include folders MUST be included FIRST to avoid other
// possible not compatible libraries (i.e PEAR) to be included
// instead the ones provided by RC
ini_set('include_path', $INSTALL_PATH.PATH_SEPARATOR.$INSTALL_PATH.'program'.PATH_SEPARATOR.$INSTALL_PATH.'program/lib'.PATH_SEPARATOR.ini_get('include_path'));

ini_set('session.name', 'roundcube_sessid');
ini_set('session.use_cookies', 1);
ini_set('session.gc_maxlifetime', 21600);
ini_set('session.gc_divisor', 500);
ini_set('error_reporting', E_ALL&~E_NOTICE);
set_magic_quotes_runtime(0);

// increase maximum execution time for php scripts
// (does not work in safe mode)
if (!ini_get('safe_mode')) @set_time_limit(120);

// include base files
require_once('include/rcube_shared.inc');
require_once('include/rcube_imap.inc');
require_once('include/bugs.inc');
require_once('include/main.inc');
require_once('PEAR.php');


// set PEAR error handling
// PEAR::setErrorHandling(PEAR_ERROR_TRIGGER, E_USER_NOTICE);


// catch some url/post parameters
$_task = strip_quotes(get_input_value('_task', RCUBE_INPUT_GPC));
$_action = strip_quotes(get_input_value('_action', RCUBE_INPUT_GPC));
$_framed = (!empty($_GET['_framed']) || !empty($_POST['_framed']));

// use main task if empty or invalid value
if (empty($_task) || !in_array($_task, $MAIN_TASKS))
  $_task = 'mail';


// set output buffering
if ($_action != 'get' && $_action != 'viewsource')
{
  // use gzip compression if supported
  if (function_exists('ob_gzhandler') && !ini_get('zlib.output_compression'))
    ob_start('ob_gzhandler');
  else
    ob_start();
}


// start session with requested task
rcmail_startup($_task);

// set session related variables
$COMM_PATH = sprintf('./?_task=%s', $_task);
$SESS_HIDDEN_FIELD = '';


// add framed parameter
if ($_framed)
{
  $COMM_PATH .= '&_framed=1';
  $SESS_HIDDEN_FIELD .= "\n".'<input type="hidden" name="_framed" value="1" />';
}


// init necessary objects for GUI
rcmail_load_gui();


// check DB connections and exit on failure
if ($err_str = $DB->is_error())
{
  raise_error(array(
    'code' => 603,
    'type' => 'db',
    'message' => $err_str), FALSE, TRUE);
}


// error steps
if ($_action=='error' && !empty($_GET['_code']))
  raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);


// try to log in
if ($_action=='login' && $_task=='mail')
{
  $host = rcmail_autoselect_host();
  
  // check if client supports cookies
  if (empty($_COOKIE))
  {
    $OUTPUT->show_message("cookiesdisabled", 'warning');
  }
  else if ($_SESSION['temp'] && !empty($_POST['_user']) && isset($_POST['_pass']) &&
           rcmail_login(get_input_value('_user', RCUBE_INPUT_POST),
              get_input_value('_pass', RCUBE_INPUT_POST, true, 'ISO-8859-1'), $host))
  {
    // create new session ID
    unset($_SESSION['temp']);
    sess_regenerate_id();

    // send auth cookie if necessary
    rcmail_authenticate_session();

    // send redirect
    header("Location: $COMM_PATH");
    exit;
  }
  else
  {
    $OUTPUT->show_message($IMAP->error_code == -1 ? 'imaperror' : 'loginfailed', 'warning');
    rcmail_kill_session();
  }
}

// end session
else if (($_task=='logout' || $_action=='logout') && isset($_SESSION['user_id']))
{
  $OUTPUT->show_message('loggedout');
  rcmail_kill_session();
}

// check session and auth cookie
else if ($_action != 'login' && $_SESSION['user_id'] && $_action != 'send')
{
  if (!rcmail_authenticate_session())
  {
    $OUTPUT->show_message('sessionerror', 'error');
    rcmail_kill_session();
  }
}


// log in to imap server
if (!empty($USER->ID) && $_task=='mail')
{
  $conn = $IMAP->connect($_SESSION['imap_host'], $_SESSION['username'], decrypt_passwd($_SESSION['password']), $_SESSION['imap_port'], $_SESSION['imap_ssl']);
  if (!$conn)
  {
    $OUTPUT->show_message($IMAP->error_code == -1 ? 'imaperror' : 'sessionerror', 'error');
    rcmail_kill_session();
  }
  else
    rcmail_set_imap_prop();
}


// not logged in -> set task to 'login
if (empty($USER->ID))
{
  if ($OUTPUT->ajax_call)
    $OUTPUT->remote_response("setTimeout(\"location.href='\"+this.env.comm_path+\"'\", 2000);");
  
  $_task = 'login';
}


// check client X-header to verify request origin
if ($OUTPUT->ajax_call)
{
  if (empty($CONFIG['devel_mode']) && !rc_request_header('X-RoundCube-Referer'))
  {
    header('HTTP/1.1 404 Not Found');
    die("Invalid Request");
  }
}


// set task and action to client
$OUTPUT->set_env('task', $_task);
if (!empty($_action))
  $OUTPUT->set_env('action', $_action);



// not logged in -> show login page
if (empty($USER->ID))
{
  // check if installer is still active
  if (is_file('./installer/index.php'))
    $OUTPUT->add_footer('
<div style="background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em">
<h2 style="margin-top:0.2em">Installer script is still accessible</h2>
<p>The install script of your RoundCube installation is still stored in its default location!</p>
<p>Please <b>remove</b> the whole <tt>installer</tt> folder from the RoundCube directory because
these files may expose sensitive configuration data like server passwords and encryption keys
to the public. Make sure you cannot access the <a href="./installer/">installer script</a> from your browser.</p>
</div>');
  
  $OUTPUT->task = 'login';
  $OUTPUT->send('login');
  exit;
}


// handle keep-alive signal
if ($_action=='keep-alive')
{
  $OUTPUT->reset();
  $OUTPUT->send('');
  exit;
}

// include task specific files
if ($_task=='mail')
{
  include_once('program/steps/mail/func.inc');
  
  if ($_action=='show' || $_action=='preview' || $_action=='print')
    include('program/steps/mail/show.inc');

  if ($_action=='get')
    include('program/steps/mail/get.inc');

  if ($_action=='moveto' || $_action=='delete')
    include('program/steps/mail/move_del.inc');

  if ($_action=='mark')
    include('program/steps/mail/mark.inc');

  if ($_action=='viewsource')
    include('program/steps/mail/viewsource.inc');

  if ($_action=='sendmdn')
    include('program/steps/mail/sendmdn.inc');

  if ($_action=='send')
    include('program/steps/mail/sendmail.inc');

  if ($_action=='upload')
    include('program/steps/mail/upload.inc');

  if ($_action=='compose' || $_action=='remove-attachment' || $_action=='display-attachment')
    include('program/steps/mail/compose.inc');

  if ($_action=='addcontact')
    include('program/steps/mail/addcontact.inc');

  if ($_action=='expunge' || $_action=='purge')
    include('program/steps/mail/folders.inc');

  if ($_action=='check-recent')
    include('program/steps/mail/check_recent.inc');

  if ($_action=='getunread')
    include('program/steps/mail/getunread.inc');
    
  if ($_action=='list' && isset($_REQUEST['_remote']))
    include('program/steps/mail/list.inc');

   if ($_action=='search')
     include('program/steps/mail/search.inc');
     
  if ($_action=='spell')
    include('program/steps/mail/spell.inc');

  if ($_action=='rss')
    include('program/steps/mail/rss.inc');
    
  if ($_action=='quotadisplay')
    include('program/steps/mail/quotadisplay.inc');


  // make sure the message count is refreshed
  $IMAP->messagecount($_SESSION['mbox'], 'ALL', TRUE);
}


// include task specific files
if ($_task=='addressbook')
{
  include_once('program/steps/addressbook/func.inc');

  if ($_action=='save')
    include('program/steps/addressbook/save.inc');
  
  if ($_action=='edit' || $_action=='add')
    include('program/steps/addressbook/edit.inc');
  
  if ($_action=='delete')
    include('program/steps/addressbook/delete.inc');

  if ($_action=='show')
    include('program/steps/addressbook/show.inc');

  if ($_action=='list' && $_REQUEST['_remote'])
    include('program/steps/addressbook/list.inc');

  if ($_action=='search')
    include('program/steps/addressbook/search.inc');

  if ($_action=='copy')
    include('program/steps/addressbook/copy.inc');

  if ($_action=='mailto')
    include('program/steps/addressbook/mailto.inc');
}


// include task specific files
if ($_task=='settings')
{
  include_once('program/steps/settings/func.inc');

  if ($_action=='save-identity')
    include('program/steps/settings/save_identity.inc');

  if ($_action=='add-identity' || $_action=='edit-identity')
    include('program/steps/settings/edit_identity.inc');

  if ($_action=='delete-identity')
    include('program/steps/settings/delete_identity.inc');
  
  if ($_action=='identities')
    include('program/steps/settings/identities.inc');

  if ($_action=='save-prefs')
    include('program/steps/settings/save_prefs.inc');

  if ($_action=='folders' || $_action=='subscribe' || $_action=='unsubscribe' ||
      $_action=='create-folder' || $_action=='rename-folder' || $_action=='delete-folder')
    include('program/steps/settings/manage_folders.inc');

}


// parse main template
$OUTPUT->send($_task);


// if we arrive here, something went wrong
raise_error(array(
  'code' => 404,
  'type' => 'php',
  'line' => __LINE__,
  'file' => __FILE__,
  'message' => "Invalid request"), TRUE, TRUE);
                      
?>
Something went wrong with that request. Please try again.