<?php
/**
 * Index page for jaws
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   Application
 * @package    Core
 * @author     Jonathan Hernandez <ion@gluch.org.mx>
 * @author     Pablo Fischer <pablo@pablo.com.mx>
 * @author     Helgi Þormar <dufuz@php.net>
 * @copyright  2005-2007 Jaws Development Group
 * @license    http://www.gnu.org/copyleft/lesser.html
 */
define('JAWS_SCRIPT', 'index.php');

$current = dirname(__FILE__);
// Redirect to the installer if JawsConfig can't be found.
if (!file_exists($current . '/config/JawsConfig.php')) {
    header('Location: install.php');
}

require_once $current . '/include/JawsInitApplication.php';

if ($GLOBALS['app']->Registry->Get('/version') != JAWS_VERSION) {
    header('Location: upgrade.php');
}

if (DEBUG_ACTIVATED) {
    // Log start time (microseconds)
    $mtime = microtime();
    $mtime = explode(' ', $mtime);
    $mtime = (double) $mtime[0] + $mtime[1];
    $tstart = $mtime;
}

require_once JAWS_PATH . 'include/JawsGadgetHTML.php';

$GLOBALS['app']->SetApplicationType('web');

$GLOBALS['app']->Map->Parse();

// Manage user session stuff
require_once 'include/SessionTypes/WebSession.php';
$GLOBALS['session'] =& new WebSession(true);

// Init layout...
$GLOBALS['app']->InstanceLayout();
$GLOBALS['app']->Layout->Load();

$request =& JawsRequest::getInstance();
$get_gadget = $request->get('gadget', 'get');

if ($get_gadget !== null) {
    $gadget = $get_gadget;
} else {
    $post_gadget = $request->get('gadget', 'post');
    $gadget = $post_gadget !== null ? $post_gadget : '';
}

$get_action = $request->get('action', 'get');
if ($get_action !== null) {
    $action = $get_action;
} else {
    $post_action = $request->get('action', 'post');
    $action = $post_action !== null ? $post_action : '';
}

// Check for requested gadget
if (!empty($gadget)) {
    // Convert first letter to ucase to backwards compability
    $ReqGadget = ucfirst($gadget);
    if (!JawsGadget::IsValid($ReqGadget)) {
        JawsError::Fatal("Invalid requested gadget", __FILE__, __LINE__);
    }

    $ReqAction = !empty($action) ? $action : 'DefaultAction';
    $am_i_index = false;
} else {
    $ReqGadget = $GLOBALS['app']->Registry->Get('/config/main_gadget');
    if ($ReqGadget) {
        $am_i_index = true;
        if (isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) {
            // We're requesting something weird... let's return a 404.
            $ReqAction = '_404';
        } else {
            $ReqAction = 'DefaultAction';
        }
    } else {
        JawsError::Fatal("No default gadget is set, please activate a gadget in the control panel.", __FILE__, __LINE__);
    }
}

if (empty($ReqGadget)) {
    JawsError::Fatal("Empty gadget, Registry or a missed table problem", __FILE__, __LINE__);
}

$goGadget = $GLOBALS['app']->LoadGadget($ReqGadget);
if (JawsError::IsError($goGadget)) {
    JawsError::Fatal("Error loading gadget: $ReqGadget", __FILE__, __LINE__);
}

$anonCanRegister = $GLOBALS['app']->Registry->Get('/config/anon_register');
if ($ReqGadget == 'Users' && $anonCanRegister == 'false') {
    //Send user to a 404 page
    $ReqAction = '_404';
}

$goGadget->SetAction($ReqAction);
$action = $goGadget->GetAction();
$standAloneMode = $goGadget->isStandAlone($action);
// If requested action is `stand alone' just print it
if ($standAloneMode) {
    echo $goGadget->Execute();
} else {
    // If requested action
    if (!$goGadget->IsNormal($action)) {
        JawsError::Fatal("Invalid operation: You can't execute requested action. This action is part of admin or ".
                         "can only be used in the layout (not via the URL)", __FILE__, __LINE__);
    }
    $GLOBALS['app']->Layout->Populate($goGadget, $am_i_index);
    $GLOBALS['app']->Layout->Show();
}

// Sync session
$GLOBALS['session']->Synchronize();

if (DEBUG_ACTIVATED) {
    // Log generation time
    $mtime = microtime();
    $mtime = explode(' ', $mtime);
    $mtime = $mtime[1] + $mtime[0];
    $tend  = $mtime;
    $totaltime = ($tend - $tstart);

    // Log end time
    $GLOBALS['log']->Log(JAWS_LOG_INFO, "Page was generated in {$totaltime} seconds");
    $GLOBALS['log']->Log(JAWS_LOG_INFO,'[Jaws End] ' . date('M/d/Y H:i:s') . ':' . __FILE__ . ':' .  __LINE__);
    if (function_exists('memory_get_usage')) {
        $GLOBALS['log']->Log(JAWS_LOG_INFO, 'Memory Usage: ' . round(memory_get_usage() / 1024 / 1024, 2) . 'MB');
    }
    $GLOBALS['log']->LogStackToScreen();
}