egroupware/xajax.php
2008-07-28 09:22:52 +00:00

153 lines
4.9 KiB
PHP

<?php
/**
* eGroupWare - XmlHTTP (Ajax) server
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage ajax
* @author Lars Kneschke
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
require_once('./phpgwapi/inc/xajax.inc.php');
/**
* callback if the session-check fails, redirects via xajax to login.php
*
* @param array &$anon_account anon account_info with keys 'login', 'passwd' and optional 'passwd_type'
* @return boolean/string true if we allow anon access and anon_account is set, a sessionid or false otherwise
*/
function xajax_redirect(&$anon_account)
{
// now the header is included, we can set the charset
$GLOBALS['xajax']->setCharEncoding($GLOBALS['egw']->translation->charset());
define('XAJAX_DEFAULT_CHAR_ENCODING',$GLOBALS['egw']->translation->charset());
$response =& new xajaxResponse();
$response->addScript("location.href='".$GLOBALS['egw_info']['server']['webserver_url'].'/login.php?cd=10'."';");
header('Content-type: text/xml; charset='.$GLOBALS['egw']->translation->charset());
echo $response->getXML();
$GLOBALS['egw']->common->egw_exit();
}
/**
* Exception handler for xajax, return the message (and trace) as alert() to the user
*
* Does NOT return!
*
* @param Exception $e
*/
function ajax_exception_handler(Exception $e)
{
$response =& new xajaxResponse();
$response->addAlert($e->getMessage()."\n\n".$e->getTraceAsString());
header('Content-type: text/xml; charset='.(is_object($GLOBALS['egw'])?$GLOBALS['egw']->translation->charset():'utf-8'));
echo $response->getXML();
if (is_object($GLOBALS['egw']))
{
$GLOBALS['egw']->common->egw_exit();
}
exit;
}
// set our own exception handler, to not get the html from eGW's default one
set_exception_handler('ajax_exception_handler');
/**
* Callback called from xajax
*
* Includs the header and set's up the eGW enviroment.
*
* @return string with XML response from xajaxResponse::getXML()
*/
function doXMLHTTP()
{
$numargs = func_num_args();
if($numargs < 1)
return false;
$argList = func_get_args();
$arg0 = array_shift($argList);
if(get_magic_quotes_gpc()) {
foreach($argList as $key => $value) {
if(is_array($value)) {
foreach($argList as $key1 => $value1) {
$argList[$key][$key1] = stripslashes($value1);
}
} else {
$argList[$key] = stripslashes($value);
}
}
}
//error_log("xajax_doXMLHTTP('$arg0',...)");
if (strpos($arg0,'::') !== false && strpos($arg0,'.') === false) // static method name app_something::method
{
list($className,$functionName,$handler) = explode('::',$arg0);
list($appName) = explode('_',$className);
}
else
{
@list($appName, $className, $functionName, $handler) = explode('.',$arg0);
}
//error_log("xajax.php: appName=$appName, className=$className, functionName=$functionName, handler=$handler");
$GLOBALS['egw_info'] = array(
'flags' => array(
'currentapp' => $appName,
'noheader' => True,
'disable_Template_class' => True,
'autocreate_session_callback' => 'xajax_redirect',
'no_exception_handler' => true, // we already installed our own
)
);
include('./header.inc.php');
// now the header is included, we can set the charset
$GLOBALS['xajax']->setCharEncoding($GLOBALS['egw']->translation->charset());
define('XAJAX_DEFAULT_CHAR_ENCODING',$GLOBALS['egw']->translation->charset());
switch($handler)
{
case '/etemplate/process_exec':
$_GET['menuaction'] = $appName.'.'.$className.'.'.$functionName;
$appName = $className = 'etemplate';
$functionName = 'process_exec';
$arg0 = 'etemplate.etemplate.process_exec';
$argList = array(
$argList[0]['etemplate_exec_id'],
$argList[0]['submit_button'],
$argList[0],
'xajaxResponse',
);
error_log("xajax_doXMLHTTP() /etemplate/process_exec handler: arg0='$arg0', menuaction='$_GET[menuaction]'");
break;
case 'etemplate': // eg. ajax code in an eTemplate widget
$arg0 = ($appName = 'etemplate').'.'.$className.'.'.$functionName;
break;
}
if(substr($className,0,4) != 'ajax' && substr($className,-4) != 'ajax' &&
$arg0 != 'etemplate.etemplate.process_exec' && substr($functionName,0,4) != 'ajax' ||
!preg_match('/^[A-Za-z0-9_]+(\.[A-Za-z0-9_]+\.|::)[A-Za-z0-9_]+$/',$arg0))
{
// stopped for security reasons
error_log($_SERVER['PHP_SELF']. ' stopped for security reason. '.$arg0.' is not valid. class- or function-name must start with ajax!!!');
// send message also to the user
throw new Exception($_SERVER['PHP_SELF']. ' stopped for security reason. '.$arg0.' is not valid. class- or function-name must start with ajax!!!');
exit;
}
$ajaxClass =& CreateObject($appName.'.'.$className);
$argList = $GLOBALS['egw']->translation->convert($argList, 'utf-8');
return call_user_func_array(array(&$ajaxClass, $functionName), $argList );
}
$xajax = new xajax($_SERVER['PHP_SELF']);
$xajax->registerFunction('doXMLHTTP');
$xajax->processRequests();