/
utils.php
201 lines (178 loc) · 5.39 KB
/
utils.php
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<?php
/**
* @package com_meego_ocs
* @author Ferenc Szekely
* @copyright The Midgard Project, http://www.midgard-project.org
* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
*/
class com_meego_ocs_utils
{
/**
* Returns the curretnly logged in user's object
*
* @return object midgard_user object of the current user
*/
public static function get_current_user()
{
$mvc = midgardmvc_core::get_instance();
return $mvc->authentication->get_user();
}
/**
* Prepares proper login and password elements for authentication
*
* @return array
*/
public function prepare_tokens($args = null)
{
$tokens = array('login' => '', 'password' => '');
if (isset($_SERVER['HTTP_AUTHORIZATION']))
{
//prepare tokens from Basic Auth header
$auth_params = explode(":", base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
$tokens['login'] = $auth_params[0];
unset($auth_params[0]);
$tokens['password'] = implode('', $auth_params);
}
else if (isset($_POST['login']))
{
$tokens['login'] = $_POST['login'];
if (isset($_POST['password']))
{
$tokens['password'] = $_POST['password'];
}
}
return $tokens;
}
/**
* Performs authentication
*
* Limitation: only LDAP auth is supported properly at the moment
*
* @return boolean
*/
public function authenticate()
{
$auth = null;
switch (midgardmvc_core::get_instance()->configuration->ocs_authentication)
{
case 'LDAP':
$tokens = self::prepare_tokens();
$auth = self::ldap_auth($tokens);
break;
case 'basic':
default:
$auth = new midgardmvc_core_services_authentication_basic();
$e = new Exception("Vote posting requires Basic authentication");
$auth->handle_exception($e);
}
return $auth;
}
/**
* Returns the currently logged in user's object
*
* @return object midgard_user object of the current user
*/
public static function ldap_auth($tokens = null)
{
if (is_array($tokens)
&& array_key_exists('login', $tokens)
&& array_key_exists('password', $tokens))
{
$ldap = new com_meego_packages_services_authentication_ldap();
$session = $ldap->create_login_session($tokens, null);
return $session;
}
return null;
}
/**
* Indicates if an account is valid or not
*
* @return bollean true: valid account; false: invalid account
*/
public static function ldap_check($tokens = null)
{
$retval = null;
if ( is_array($tokens)
&& array_key_exists('login', $tokens))
{
$ldap = new com_meego_packages_services_authentication_ldap();
$retval = $ldap->ldap_check($tokens);
}
return $retval;
}
/**
* Checks if a user has rated a certain package
* @param integer package id
* @param guid of the user
*
* @return boolean true: if user has rated, false otherwise
*/
public function user_has_voted($application_id = null, $author_guid = null)
{
$retval = false;
if (! $application_id)
{
// throw an exception or something..
return null;
}
if (! $author_guid)
{
// ok, get the current user then
$user = $this->get_current_user();
if (! $user)
{
// not logged in, to bad
return null;
}
$author_guid = $user->person;
}
// query select
$storage = new midgard_query_storage('com_meego_package_ratings');
$q = new midgard_query_select($storage);
$qc = new midgard_query_constraint_group('AND');
$qc->add_constraint(new midgard_query_constraint(
new midgard_query_property('id'),
'=',
new midgard_query_value($application_id)
));
$qc->add_constraint(new midgard_query_constraint(
new midgard_query_property('commentid'),
'=',
new midgard_query_value(0)
));
$qc->add_constraint(new midgard_query_constraint(
new midgard_query_property('authorguid'),
'=',
new midgard_query_value($author_guid)
));
$q->set_constraint($qc);
$q->execute();
$ratings = $q->list_objects();
if (count($ratings))
{
$retval = true;
}
return $retval;
}
/**
* End the run with an OCS error message
*/
public static function end_with_error($message, $status)
{
$ocs = new com_meego_ocs_OCSWriter();
$ocs->writeError($message, $status);
$ocs->endDocument();
self::output_xml($ocs);
}
/**
* @todo: docs
*/
public static function output_xml($xml)
{
$mvc = midgardmvc_core::get_instance();
$mvc->dispatcher->header('Content-type: application/xml; charset=utf-8');
echo $xml->outputMemory(true);
$mvc->dispatcher->end_request();
unset($mvc);
}
}