Fix multi-threaded autocompletion when number of threads > number of sources

thomascube

2012-05-04 5b04ddd6bc9e0af5f73694371cd3988b1d5be7e8

 index.php

@@ -1,40 +1,38 @@
<?php
/*
 +-----------------------------------------------------------------------+
 | RoundCube Webmail IMAP Client                                         |
 | Version 0.1-20080430                                                  |
 |                                                                       |
 | Copyright (C) 2005-2008, 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>                        |
 +-----------------------------------------------------------------------+
 +-------------------------------------------------------------------------+
 | Roundcube Webmail IMAP Client                                           |
 | Version 0.9-svn                                                         |
 |                                                                         |
 | Copyright (C) 2005-2012, The Roundcube Dev Team                         |
 |                                                                         |
 | This program is free software: you can redistribute it and/or modify    |
 | it under the terms of the GNU General Public License (with exceptions   |
 | for skins & plugins) as published by the Free Software Foundation,      |
 | either version 3 of the License, or (at your option) any later version. |
 |                                                                         |
 | This file forms part of the Roundcube Webmail Software for which the    |
 | following exception is added: Plugins and Skins which merely make       |
 | function calls to the Roundcube Webmail Software, and for that purpose  |
 | include it by reference shall not be considered modifications of        |
 | the software.                                                           |
 |                                                                         |
 | If you wish to use this file in another project or create a modified    |
 | version that will not be part of the Roundcube Webmail Software, you    |
 | may remove the exception above and use this source code under the       |
 | original version of the license.                                        |
 |                                                                         |
 | This program is distributed in the hope that it will be useful,         |
 | but WITHOUT ANY WARRANTY; without even the implied warranty of          |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the            |
 | GNU General Public License for more details.                            |
 |                                                                         |
 | You should have received a copy of the GNU General Public License       |
 | along with this program.  If not, see http://www.gnu.org/licenses/.     |
 |                                                                         |
 +-------------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                          |
 +-------------------------------------------------------------------------+

 $Id$

@@ -43,272 +41,254 @@
// include environment
require_once 'program/include/iniset.php';

// define global vars
$OUTPUT_TYPE = 'html';

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


// init application and start session with requested task
// init application, start session, init output class, etc.
$RCMAIL = rcmail::get_instance();

// init output class
$OUTPUT = (!empty($_GET['_remote']) || !empty($_POST['_remote'])) ? $RCMAIL->init_json() : $RCMAIL->load_gui((!empty($_GET['_framed']) || !empty($_POST['_framed'])));
// Make the whole PHP output non-cacheable (#1487797)
$RCMAIL->output->nocacheing_headers();

// turn on output buffering
ob_start();

// check if config files had errors
if ($err_str = $RCMAIL->config->get_error()) {
  rcmail::raise_error(array(
    'code' => 601,
    'type' => 'php',
    'message' => $err_str), false, true);
}

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


// error steps
if ($RCMAIL->action=='error' && !empty($_GET['_code'])) {
  raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);
if ($RCMAIL->action == 'error' && !empty($_GET['_code'])) {
  rcmail::raise_error(array('code' => hexdec($_GET['_code'])), FALSE, TRUE);
}

// try to log in
if ($RCMAIL->action=='login' && $RCMAIL->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(trim(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: {$RCMAIL->comm_path}");
// check if https is required (for login) and redirect if necessary
if (empty($_SESSION['user_id']) && ($force_https = $RCMAIL->config->get('force_https', false))) {
  $https_port = is_bool($force_https) ? 443 : $force_https;
  if (!rcube_utils::https_check($https_port)) {
    $host  = preg_replace('/:[0-9]+$/', '', $_SERVER['HTTP_HOST']);
    $host .= ($https_port != 443 ? ':' . $https_port : '');
    header('Location: https://' . $host . $_SERVER['REQUEST_URI']);
    exit;
  }
}

// trigger startup plugin hook
$startup = $RCMAIL->plugins->exec_hook('startup', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
$RCMAIL->set_task($startup['task']);
$RCMAIL->action = $startup['action'];

// try to log in
if ($RCMAIL->task == 'login' && $RCMAIL->action == 'login') {
  $request_valid = $_SESSION['temp'] && $RCMAIL->check_request(rcube_utils::INPUT_POST, 'login');

  // purge the session in case of new login when a session already exists 
  $RCMAIL->kill_session();

  $auth = $RCMAIL->plugins->exec_hook('authenticate', array(
    'host' => $RCMAIL->autoselect_host(),
    'user' => trim(rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST)),
    'pass' => rcube_utils::get_input_value('_pass', rcube_utils::INPUT_POST, true,
       $RCMAIL->config->get('password_charset', 'ISO-8859-1')),
    'cookiecheck' => true,
    'valid' => $request_valid,
  ));

  // check if client supports cookies
  if ($auth['cookiecheck'] && empty($_COOKIE)) {
    $OUTPUT->show_message("cookiesdisabled", 'warning');
  }
  else if ($auth['valid'] && !$auth['abort'] &&
    $RCMAIL->login($auth['user'], $auth['pass'], $auth['host'])
  ) {
    // create new session ID, don't destroy the current session
    // it was destroyed already by $RCMAIL->kill_session() above
    $RCMAIL->session->remove('temp');
    $RCMAIL->session->regenerate_id(false);

    // send auth cookie if necessary
    $RCMAIL->session->set_auth_cookie();

    // log successful login
    $RCMAIL->log_login();

    // restore original request parameters
    $query = array();
    if ($url = rcube_utils::get_input_value('_url', rcube_utils::INPUT_POST)) {
      parse_str($url, $query);

      // prevent endless looping on login page
      if ($query['_task'] == 'login')
        unset($query['_task']);

      // prevent redirect to compose with specified ID (#1488226)
      if ($query['_action'] == 'compose' && !empty($query['_id']))
        $query = array();
    }

    // allow plugins to control the redirect url after login success
    $redir = $RCMAIL->plugins->exec_hook('login_after', $query + array('_task' => 'mail'));
    unset($redir['abort'], $redir['_err']);

    // send redirect
    $OUTPUT->redirect($redir);
  }
  else {
    $OUTPUT->show_message($IMAP->error_code == -1 ? 'imaperror' : 'loginfailed', 'warning');
    rcmail_kill_session();
    $error_code = is_object($RCMAIL->storage) ? $RCMAIL->storage->get_error_code() : 1;

    $OUTPUT->show_message($error_code < -1 ? 'storageerror' : (!$auth['valid'] ? 'invalidrequest' : 'loginfailed'), 'warning');
    $RCMAIL->plugins->exec_hook('login_failed', array(
      'code' => $error_code, 'host' => $auth['host'], 'user' => $auth['user']));
    $RCMAIL->kill_session();
  }
}

// end session
else if (($RCMAIL->task=='logout' || $RCMAIL->action=='logout') && isset($_SESSION['user_id'])) {
// end session (after optional referer check)
else if ($RCMAIL->task == 'logout' && isset($_SESSION['user_id']) && (!$RCMAIL->config->get('referer_check') || rcmail::check_referer())) {
  $userdata = array(
    'user' => $_SESSION['username'],
    'host' => $_SESSION['storage_host'],
    'lang' => $RCMAIL->user->language,
  );
  $OUTPUT->show_message('loggedout');
  rcmail_logout_actions();
  rcmail_kill_session();
  $RCMAIL->logout_actions();
  $RCMAIL->kill_session();
  $RCMAIL->plugins->exec_hook('logout_after', $userdata);
}

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


// log in to imap server
if (!empty($RCMAIL->user->ID) && $RCMAIL->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($RCMAIL->user->ID)) {
  if ($OUTPUT->ajax_call)
    $OUTPUT->remote_response("setTimeout(\"location.href='\"+this.env.comm_path+\"'\", 2000);");
  
  $RCMAIL->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");
  }
}


// not logged in -> show login page
if (empty($RCMAIL->user->ID)) {
  // log session failures
  $task = rcube_utils::get_input_value('_task', rcube_utils::INPUT_GPC);
  if ($task && !in_array($task, array('login','logout')) && !$session_error && ($sess_id = $_COOKIE[ini_get('session.name')])) {
    $RCMAIL->session->log("Aborted session " . $sess_id . "; no valid session data found");
    $session_error = true;
  }

  if ($OUTPUT->ajax_call)
    $OUTPUT->redirect(array('_err' => 'session'), 2000);

  if (!empty($_REQUEST['_framed']))
    $OUTPUT->command('redirect', $RCMAIL->url(array('_err' => 'session')));

  // check if installer is still active
  if ($CONFIG['enable_installer'] && is_readable('./installer/index.php')) {
  if ($RCMAIL->config->get('enable_installer') && is_readable('./installer/index.php')) {
    $OUTPUT->add_footer(html::div(array('style' => "background:#ef9398; border:2px solid #dc5757; padding:0.5em; margin:2em auto; width:50em"),
      html::tag('h2', array('style' => "margin-top:0.2em"), "Installer script is still accessible") .
      html::p(null, "The install script of your RoundCube installation is still stored in its default location!") .
      html::p(null, "Please <b>remove</b> the whole <tt>installer</tt> folder from the RoundCube directory because .
      html::p(null, "The install script of your Roundcube installation is still stored in its default location!") .
      html::p(null, "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.")
      )
    );
  }
  
  $OUTPUT->set_env('task', 'login');
  $OUTPUT->task = 'login';

  if ($session_error || $_REQUEST['_err'] == 'session')
    $OUTPUT->show_message('sessionerror', 'error', null, true, -1);

  $RCMAIL->set_task('login');
  $OUTPUT->send('login');
  exit;
}
// CSRF prevention
else {
  // don't check for valid request tokens in these actions
  $request_check_whitelist = array('login'=>1, 'spell'=>1);

  // check client X-header to verify request origin
  if ($OUTPUT->ajax_call) {
    if (rcube_utils::request_header('X-Roundcube-Request') != $RCMAIL->get_request_token() && !$RCMAIL->config->get('devel_mode')) {
      header('HTTP/1.1 403 Forbidden');
      die("Invalid Request");
    }
  }
  // check request token in POST form submissions
  else if (!empty($_POST) && !$request_check_whitelist[$RCMAIL->action] && !$RCMAIL->check_request()) {
    $OUTPUT->show_message('invalidrequest', 'error');
    $OUTPUT->send($RCMAIL->task);
  }

  // check referer if configured
  if (!$request_check_whitelist[$RCMAIL->action] && $RCMAIL->config->get('referer_check') && !rcmail::check_referer()) {
    raise_error(array(
      'code' => 403,
      'type' => 'php',
      'message' => "Referer check failed"), true, true);
  }
}

// we're ready, user is authenticated and the request is safe
$plugin = $RCMAIL->plugins->exec_hook('ready', array('task' => $RCMAIL->task, 'action' => $RCMAIL->action));
$RCMAIL->set_task($plugin['task']);
$RCMAIL->action = $plugin['action'];

// handle keep-alive signal
if ($RCMAIL->action=='keep-alive') {

// handle special actions
if ($RCMAIL->action == 'keep-alive') {
  $OUTPUT->reset();
  $OUTPUT->send('');
  exit;
  $RCMAIL->plugins->exec_hook('keep_alive', array());
  $OUTPUT->send();
}

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

  if ($RCMAIL->action=='get')
    include('program/steps/mail/get.inc');

  if ($RCMAIL->action=='moveto' || $RCMAIL->action=='delete')
    include('program/steps/mail/move_del.inc');

  if ($RCMAIL->action=='mark')
    include('program/steps/mail/mark.inc');

  if ($RCMAIL->action=='viewsource')
    include('program/steps/mail/viewsource.inc');

  if ($RCMAIL->action=='sendmdn')
    include('program/steps/mail/sendmdn.inc');

  if ($RCMAIL->action=='send')
    include('program/steps/mail/sendmail.inc');

  if ($RCMAIL->action=='upload')
    include('program/steps/mail/upload.inc');

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

  if ($RCMAIL->action=='addcontact')
    include('program/steps/mail/addcontact.inc');

  if ($RCMAIL->action=='expunge' || $RCMAIL->action=='purge')
    include('program/steps/mail/folders.inc');

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

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

   if ($RCMAIL->action=='search')
     include('program/steps/mail/search.inc');
     
  if ($RCMAIL->action=='spell')
    include('program/steps/mail/spell.inc');

  if ($RCMAIL->action=='rss')
    include('program/steps/mail/rss.inc');
    
  // make sure the message count is refreshed
  $IMAP->messagecount($_SESSION['mbox'], 'ALL', true);
else if ($RCMAIL->action == 'save-pref') {
  include INSTALL_PATH . 'program/steps/utils/save_pref.inc';
}


// include task specific files
if ($RCMAIL->task=='addressbook') {
  include_once('program/steps/addressbook/func.inc');
// include task specific functions
if (is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/func.inc'))
  include_once $incfile;

  if ($RCMAIL->action=='save')
    include('program/steps/addressbook/save.inc');
  
  if ($RCMAIL->action=='edit' || $RCMAIL->action=='add')
    include('program/steps/addressbook/edit.inc');
  
  if ($RCMAIL->action=='delete')
    include('program/steps/addressbook/delete.inc');

  if ($RCMAIL->action=='show')
    include('program/steps/addressbook/show.inc');  

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

  if ($RCMAIL->action=='search')
    include('program/steps/addressbook/search.inc');

  if ($RCMAIL->action=='copy')
    include('program/steps/addressbook/copy.inc');

  if ($RCMAIL->action=='mailto')
    include('program/steps/addressbook/mailto.inc');
// allow 5 "redirects" to another action
$redirects = 0; $incstep = null;
while ($redirects < 5) {
  // execute a plugin action
  if ($RCMAIL->plugins->is_plugin_task($RCMAIL->task)) {
    if (!$RCMAIL->action) $RCMAIL->action = 'index';
    $RCMAIL->plugins->exec_action($RCMAIL->task.'.'.$RCMAIL->action);
    break;
  }
  else if (preg_match('/^plugin\./', $RCMAIL->action)) {
    $RCMAIL->plugins->exec_action($RCMAIL->action);
    break;
  }
  // try to include the step file
  else if (($stepfile = $RCMAIL->get_action_file())
    && is_file($incfile = INSTALL_PATH . 'program/steps/'.$RCMAIL->task.'/'.$stepfile)
  ) {
    include $incfile;
    $redirects++;
  }
  else {
    break;
  }
}


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

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

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

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

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

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


// parse main template
// parse main template (default)
$OUTPUT->send($RCMAIL->task);


// if we arrive here, something went wrong
raise_error(array(
rcmail::raise_error(array(
  'code' => 404,
  'type' => 'php',
  'line' => __LINE__,
  'file' => __FILE__,
  'message' => "Invalid request"), true, true);
                      
?>