<?php
/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2008 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * These functions define the base of the XML response sent by the PHP
 * connector.
 */

function SetXmlHeaders()
{
    ob_end_clean() ;

    // Prevent the browser from caching the result.
    // Date in the past
    header('Expires: Mon, 26 Jul 1997 05:00:00 GMT') ;
    // always modified
    header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT') ;
    // HTTP/1.1
    header('Cache-Control: no-store, no-cache, must-revalidate') ;
    header('Cache-Control: post-check=0, pre-check=0', false) ;
    // HTTP/1.0
    header('Pragma: no-cache') ;

    // Set the response format.
    header( 'Content-Type: text/xml; charset=utf-8' ) ;
}

function CreateXmlHeader( $command, $resourceType, $currentFolder )
{
    SetXmlHeaders() ;

    // Create the XML document header.
    echo '<?xml version="1.0" encoding="utf-8" ?>' ;

    // Create the main "Connector" node.
    echo '<Connector command="' . $command . '" resourceType="' . $resourceType . '">' ;

    // Add the current folder node.
    echo '<CurrentFolder path="' . ConvertToXmlAttribute( $currentFolder ) . '" url="' . ConvertToXmlAttribute( GetUrlFromPath( $resourceType, $currentFolder, $command ) ) . '" />' ;

    $GLOBALS['HeaderSent'] = true ;
}

function CreateXmlFooter()
{
    echo '</Connector>' ;
}

function SendError( $number, $text )
{
    if ( isset( $GLOBALS['HeaderSent'] ) && $GLOBALS['HeaderSent'] )
    {
        SendErrorNode( $number, $text ) ;
        CreateXmlFooter() ;
    }
    else
    {
        SetXmlHeaders() ;

        // Create the XML document header
        echo '<?xml version="1.0" encoding="utf-8" ?>' ;

        echo '<Connector>' ;

        SendErrorNode( $number, $text ) ;

        echo '</Connector>' ;
    }
    exit ;
}

function SendErrorNode(  $number, $text )
{
    echo '<Error number="' . $number . '" text="' . htmlspecialchars( $text ) . '" />' ;
}
?>
