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egroupware_official/json.php

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PHP
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<?php
/**
* EGroupware - general JSON handler for EGroupware
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage ajax
* @author Andreas Stoeckel <as@stylite.de>
* @version $Id$
*/
/**
* callback if the session-check fails, redirects to login.php
*
* @param array &$anon_account anon account_info with keys 'login', 'passwd' and optional 'passwd_type'
* @return boolean|string true if we allow anon access and anon_account is set, a sessionid or false otherwise
*/
function login_redirect(&$anon_account)
{
unset($anon_account);
egw_json_request::isJSONRequest(true); // because egw_json_request::parseRequest() is not (yet) called
$response = egw_json_response::get();
$response->redirect($GLOBALS['egw_info']['server']['webserver_url'].'/login.php?cd=10', true);
common::egw_exit();
}
/**
* Exception handler for xajax, return the message (and trace, if enabled) as alert() to the user
*
* Does NOT return!
*
* @param Exception $e
*/
function ajax_exception_handler(Exception $e)
{
// handle redirects without logging
if (is_a($e, 'egw_exception_redirect'))
{
egw::redirect($e->url, $e->app);
}
// logging all exceptions to the error_log
$message = null;
if (function_exists('_egw_log_exception'))
{
_egw_log_exception($e,$message);
}
$response = egw_json_response::get();
$message .= ($message ? "\n\n" : '').$e->getMessage();
// only show trace (incl. function arguments) if explicitly enabled, eg. on a development system
if ($GLOBALS['egw_info']['server']['exception_show_trace'])
{
$message .= "\n\n".$e->getTraceAsString();
}
$response->alert($message);
if (is_object($GLOBALS['egw']))
{
common::egw_exit();
}
exit;
}
// set our own exception handler, to not get the html from eGW's default one
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set_exception_handler('ajax_exception_handler');
if (isset($_GET['menuaction']))
{
if (strpos($_GET['menuaction'],'::') !== false && strpos($_GET['menuaction'],'.') === false) // static method name app_something::method
{
@list($className,$functionName,$handler) = explode('::',$_GET['menuaction']);
list($appName) = explode('_',$className);
}
else
{
@list($appName, $className, $functionName, $handler) = explode('.',$_GET['menuaction']);
}
//error_log("json.php: appName=$appName, className=$className, functionName=$functionName, handler=$handler");
$GLOBALS['egw_info'] = array(
'flags' => array(
'currentapp' => $appName,
'noheader' => True,
'disable_Template_class' => True,
'autocreate_session_callback' => 'login_redirect',
'no_exception_handler' => true, // we already installed our own
// only log ajax requests which represent former GET requests or submits
// cuts down updates to egw_access_log table
'no_dla_update' => !preg_match('/(\.etemplate_new\.ajax_process_content\.etemplate|\.jdots_framework\.ajax_exec\.template)$/', $_GET['menuaction']),
)
);
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include_once('./header.inc.php');
//Create a new json handler
$json = new egw_json_request();
//Check whether the request data is set
if (isset($GLOBALS['egw_unset_vars']['_POST[json_data]']))
{
throw new egw_exception_assertion_failed("JSON Data contains script tags. Aborting...");
}
$json->parseRequest($_GET['menuaction'], $_REQUEST['json_data']);
egw_json_response::get();
common::egw_exit();
}
throw new Exception($_SERVER['PHP_SELF'] . ' Invalid AJAX JSON Request');