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<?php
/**
* This file is part of libomb
*
* PHP version 5
*
* LICENSE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @package OMB
* @author Adrian Lang <mail@adrianlang.de>
* @license http://www.gnu.org/licenses/agpl.html GNU AGPL 3.0
* @version 0.1a-20090828
* @link http://adrianlang.de/libomb
*/
require_once 'Validate.php';
/**
* Helper functions for libomb
*
* This class contains helper functions for libomb.
*/
class OMB_Helper
{
/**
* Non-scalar constants
*
* The set of OMB and OAuth Services an OMB Server has to implement.
*/
public static $OMB_SERVICES = array(OMB_ENDPOINT_UPDATEPROFILE,
OMB_ENDPOINT_POSTNOTICE);
public static $OAUTH_SERVICES = array(OAUTH_ENDPOINT_REQUEST,
OAUTH_ENDPOINT_AUTHORIZE,
OAUTH_ENDPOINT_ACCESS);
/**
* Validate URL
*
* Basic URL validation. Currently http, https, ftp and gopher are supported
* schemes.
*
* @param string $url The URL which is to be validated.
*
* @return bool Whether URL is valid.
*
* @access public
*/
public static function validateURL($url)
{
return Validate::uri($url, array('allowed_schemes' => array('http',
'https', 'gopher', 'ftp')));
}
/**
* Validate Media type
*
* Basic Media type validation. Checks for valid maintype and correct
* format.
*
* @param string $mediatype The Media type which is to be validated.
*
* @return bool Whether media type is valid.
*
* @access public
*/
public static function validateMediaType($mediatype)
{
return preg_match('/^(\w+)\/([\w\d-+.]+)$/', $mediatype, $subtypes) > 0
&&
in_array(strtolower($subtypes[1]), array('application', 'audio',
'image', 'message', 'model', 'multipart', 'text', 'video'));
}
/**
* Remove escaping from request parameters
*
* Neutralise the evil effects of magic_quotes_gpc in the current request.
* This is used before handing a request off to OAuthRequest::from_request.
* Many thanks to Ciaran Gultnieks for this fix.
*
* @access public
*/
public static function removeMagicQuotesFromRequest()
{
if (get_magic_quotes_gpc() === 1) {
$_POST = array_map('stripslashes', $_POST);
$_GET = array_map('stripslashes', $_GET);
}
}
}
?>
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