egroupware/phpgwapi/inc/horde/Horde/RPC/syncml.php

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<?php
require_once 'Horde/SyncML.php';
#require_once 'Horde/SyncML/State.php';
require_once 'Horde/SyncML/State_egw.php';
require_once 'Horde/SyncML/Command/Status.php';
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/**
* The Horde_RPC_syncml class provides a SyncML implementation of the Horde
* RPC system.
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*
* $Horde: framework/RPC/RPC/syncml.php,v 1.27 2006/01/01 21:10:11 jan Exp $
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*
* Copyright 2003-2006 Chuck Hagenbuch <chuck@horde.org>
* Copyright 2003-2006 Anthony Mills <amills@pyramid6.com>
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*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @author Anthony Mills <amills@pyramid6.com>
* @since Horde 3.0
* @package Horde_RPC
*/
class Horde_RPC_syncml extends Horde_RPC {
/**
* Output ContentHandler used to output XML events.
*
* @var object
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*/
var $_output;
/**
* @var integer
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*/
var $_xmlStack = 0;
/**
* Debug directory, if set will store copies of all packets.
*
* @var string
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*/
var $_debugDir = '/tmp/sync';
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/**
* Default character set. Only supports UTF-8(ASCII?).
*
* @var string
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*/
var $_charset = 'UTF-8';
/**
* SyncML handles authentication internally, so bypass the RPC framework
* auth check by just returning true here.
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*/
function authorize()
{
return true;
}
/**
* Sends an RPC request to the server and returns the result.
*
* @param string $request The raw request string.
*
* @return string The XML encoded response from the server.
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*/
function getResponse($request)
{
/* Catch any errors/warnings/notices that may get thrown while
* processing. Don't want to let anything go to the client that's not
* part of the valid response. */
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ob_start();
/* Very useful for debugging. Logs WBXML packets to
* $this->_debugDir. */
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if (!empty($this->_debugDir) && is_dir($this->_debugDir)) {
$packetNum = @intval(file_get_contents($this->_debugDir . '/syncml.packetnum'));
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if (!isset($packetNum)) {
$packetNum = 0;
}
$f = @fopen($this->_debugDir . '/syncml_client_' . $packetNum . '.xml', 'wb');
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if ($f) {
fwrite($f, $request);
fclose($f);
}
}
require_once 'XML/WBXML/ContentHandler.php';
$this->_output = &new XML_WBXML_ContentHandler();
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$this->_parse($request);
$response = $this->_output->getOutput();
/* Very useful for debugging. */
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if (!empty($this->_debugDir) && is_dir($this->_debugDir)) {
$f = @fopen($this->_debugDir . '/syncml_server_' . $packetNum . '.xml', 'wb');
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if ($f) {
fwrite($f, $response);
fclose($f);
}
$fp = @fopen($this->_debugDir . '/syncml.packetnum', 'w');
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if ($fp) {
fwrite($fp, ++$packetNum);
fclose($fp);
}
}
/* Clear the output buffer that we started above, and log anything
* that came up for later debugging. */
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$errorLogging = ob_get_clean();
if (!empty($errorLogging)) {
#Horde::logMessage('SyncML: caught output=' .
# $errorLogging, __FILE__, __LINE__, PEAR_LOG_DEBUG);
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}
return $response;
}
function _parse($xml)
{
/* try to extract charset from XML text */
if(preg_match('/^\s*<\?xml[^>]*encoding\s*=\s*"([^"]*)"/i',
$xml, $m)) {
$this->_charset = $m[1];
}
#NLS::setCharset($this->_charset);
#String::setDefaultCharset($this->_charset);
/* Create the XML parser and set method references. */
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$this->_parser = xml_parser_create_ns($this->_charset);
xml_set_object($this->_parser, $this);
xml_parser_set_option($this->_parser, XML_OPTION_CASE_FOLDING, false);
xml_set_element_handler($this->_parser, '_startElement', '_endElement');
xml_set_character_data_handler($this->_parser, '_characters');
xml_set_processing_instruction_handler($this->_parser, '');
xml_set_external_entity_ref_handler($this->_parser, '');
if (!xml_parse($this->_parser, $xml)) {
return $this->raiseError(sprintf('XML error: %s at line %d',
xml_error_string(xml_get_error_code($this->_parser)),
xml_get_current_line_number($this->_parser)));
}
xml_parser_free($this->_parser);
}
function _startElement($parser, $tag, $attributes)
{
list($uri, $name) = $this->_splitURI($tag);
$this->startElement($uri, $name, $attributes);
}
function _characters($parser, $chars)
{
$this->characters($chars);
}
function _endElement($parser, $tag)
{
list($uri, $name) = $this->_splitURI($tag);
$this->endElement($uri, $name);
}
function _splitURI($tag)
{
$parts = explode(':', $tag);
$name = array_pop($parts);
$uri = implode(':', $parts);
return array($uri, $name);
}
/**
* Returns the Content-Type of the response.
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*
* @return string The MIME Content-Type of the RPC response.
*/
function getResponseContentType()
{
return 'application/vnd.syncml+xml';
}
function startElement($uri, $element, $attrs)
{
$this->_xmlStack++;
switch ($this->_xmlStack) {
case 1:
// <SyncML>
// Defined in SyncML Representation Protocol, version 1.1 5.2.1
$this->_output->startElement($uri, $element, $attrs);
break;
case 2:
// Either <SyncML><SyncHdr> or <SyncML><SyncBody>
if (!isset($this->_contentHandler)) {
// If not defined then create SyncHdr.
$this->_contentHandler = &new Horde_SyncML_SyncmlHdr();
$this->_contentHandler->setOutput($this->_output);
}
$this->_contentHandler->startElement($uri, $element, $attrs);
break;
default:
if (isset($this->_contentHandler)) {
$this->_contentHandler->startElement($uri, $element, $attrs);
}
break;
}
}
function endElement($uri, $element)
{
switch ($this->_xmlStack) {
case 1:
// </SyncML>
// Defined in SyncML Representation Protocol, version 1.1 5.2.1
$this->_output->endElement($uri, $element);
break;
case 2:
// Either </SyncHdr></SyncML> or </SyncBody></SyncML>
if ($element == 'SyncHdr') {
// Then we get the state from SyncMLHdr, and create a new
// SyncMLBody.
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$this->_contentHandler->endElement($uri, $element);
unset($this->_contentHandler);
$this->_contentHandler = &new Horde_SyncML_SyncmlBody();
$this->_contentHandler->setOutput($this->_output);
} else {
// No longer used.
$this->_contentHandler->endElement($uri, $element);
unset($this->_contentHandler);
}
break;
default:
// </*></SyncHdr></SyncML> or </*></SyncBody></SyncML>
if (isset($this->_contentHandler)) {
$this->_contentHandler->endElement($uri, $element);
}
break;
}
if (isset($this->_chars)) {
unset($this->_chars);
}
$this->_xmlStack--;
}
function characters($str)
{
if (isset($this->_contentHandler)) {
$this->_contentHandler->characters($str);
}
}
function raiseError($str)
{
return Horde::logMessage($str, __FILE__, __LINE__, PEAR_LOG_ERR);
}
}