<?php

/**
 * $Id$
 *
 * The contents of this file are subject to the KnowledgeTree Public
 * License Version 1.1 ("License"); You may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.ktdms.com/KPL
 * 
 * Software distributed under the License is distributed on an "AS IS"
 * basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * 
 * The Original Code is: KnowledgeTree Open Source
 * 
 * The Initial Developer of the Original Code is The Jam Warehouse Software
 * (Pty) Ltd, trading as KnowledgeTree.
 * Portions created by The Jam Warehouse Software (Pty) Ltd are Copyright
 * (C) 2006 The Jam Warehouse Software (Pty) Ltd;
 * All Rights Reserved.
 *
 */

require_once('config/dmsDefaults.php');
require_once(KT_LIB_DIR . '/actions/actionregistry.inc.php');
require_once(KT_LIB_DIR . '/dispatcher.inc.php');

/*
 * Using KTStandardDispatcher for errorPage, overriding handleOutput as
 * the document action dispatcher will handle that.
 */

/**
 * Dispatcher for action.php/actionname
 *
 * This dispatcher looks up the action from the Action Registry, and
 * then chains onto that action's dispatcher.
 */
class KTActionDispatcher extends KTStandardDispatcher {
    /**
     * Default dispatch
     *
     * Find the action, and then use its dispatcher.  Error out nicely
     * if we aren't so lucky.
     */
    function do_main() {
        $this->error = false;
        $action = KTUtil::arrayGet($_SERVER, 'PATH_INFO');
        $action = trim($action);
        $action = trim($action, "/");
        if (empty($action)) {
            $this->error = true;
            $this->errorPage("No action given");
        }
        $oRegistry =& KTActionRegistry::getSingleton();
        $aActionInfo = $oRegistry->getActionByNsname($action);
        if (empty($aActionInfo)) {
            $this->error = true;
            $this->errorPage("No such action exists in KnowledgeTree");
        }
        $sFilename = $aActionInfo[1];
        if (!empty($sFilename)) {
            require_once($sFilename);
        }
        $oAction = new $aActionInfo[0];
        $oAction->dispatch();
    }

    function json_main() {
	return $this->do_main();
    }

    /**
     * Handle output from this dispatcher.
     *
     * If there's an error in _this_ dispatcher, use the standard
     * surroundings.  If not, don't put anything around the output - the
     * chained dispatcher will take care of that.
     */
    function handleOutput ($data) {
        if ($this->bJSONMode || $this->error) {
            parent::handleOutput($data);
        } else {
            print $data;
        }
    }
}
$d = new KTActionDispatcher();
$d->dispatch();