freenetis-github/application/helpers/request.php @ 8baed187
| 8baed187 | Michal Kliment | <?php defined('SYSPATH') or die('No direct script access.');
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/*
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* This file is part of open source system FreenetIS
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* and it is released under GPLv3 licence.
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*
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* More info about licence can be found:
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* http://www.gnu.org/licenses/gpl-3.0.html
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*
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* More info about project can be found:
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* http://www.freenetis.org/
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*
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*/
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/**
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* HTTP Request helper
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*
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* @package Helper
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*/
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class request
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{
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//Possible http methods
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protected static $http_methods = array('get', 'post', 'put', 'delete');
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//Types client accepts
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protected static $accept_types = array();
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/**
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* Returns true if request is an ajax request
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* This works for mose js-libraries like jQuery, prototype
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*
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* @return bool
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*/
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public static function is_ajax()
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{
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return (
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isset($_SERVER['HTTP_X_REQUESTED_WITH']) &&
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$_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'
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);
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}
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/**
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* Returns true if call accepts xhtml
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*
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* @return bool
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*/
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public static function accepts_xhtml()
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{
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return self::accepts('xhtml');
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}
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/**
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* Returns true if call accepts xml
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*
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* @return bool
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*/
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public static function accepts_xml()
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{
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return self::accepts('xml');
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}
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/**
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* Returns true if call accepts rss
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*
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* @return bool
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*/
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public static function accepts_rss()
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{
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return self::accepts('rss');
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}
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/**
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* Returns true if call accepts atom
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*
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* @return bool
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*/
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public static function accepts_atom()
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{
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return self::accepts('atom');
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}
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/**
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* Returns true if the request is POST
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*
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* @return bool
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*/
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public static function is_post()
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{
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return self::method() == 'post';
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}
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/**
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* Returns true if the request is PUT
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*
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* @return bool
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*/
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public static function is_put()
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{
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return self::method() == 'put';
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}
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/**
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* Returns true if the request is GET
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*
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* @return bool
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*/
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public static function is_get()
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{
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return self::method() == 'get';
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}
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/**
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* Returns true if the request is DELETE
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*
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* @return bool
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*/
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public static function is_delete()
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{
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return self::method() == 'delete';
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}
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/**
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* Returns current request method
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*
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* @return string
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*/
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public static function method()
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{
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$method = strtolower($_SERVER['REQUEST_METHOD']);
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if (!in_array($method, self::$http_methods))
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throw new Kohana_Exception('request.unknown_method', $method);
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return $method;
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}
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/**
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* Returns boolean of whether client accepts content type
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*
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* @return boolean
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*/
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public static function accepts($type = null)
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{
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if (empty(self::$accept_types))
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{
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self::$accept_types = explode(',', $_SERVER['HTTP_ACCEPT']);
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foreach (self::$accept_types as $key => $accept_type)
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{
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if (strpos($accept_type, ';'))
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{
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$accept_type = explode(';', $accept_type);
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self::$accept_types[$key] = $accept_type[0];
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}
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}
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}
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if ($type == null)
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{
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return self::$accept_types;
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}
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elseif (is_string($type))
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{
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$type = strtolower($type);
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// If client only accepts */*, then assume default HTML browser
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if ($type == 'html' && self::$accept_types === array('*/*'))
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return true;
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if (!in_array($type, array_keys(self::$accept_types)))
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return false;
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$accept_types = Config::get('mimes.' . $type);
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if (is_array($accept_types))
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{
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foreach ($accept_types as $type)
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{
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if (in_array($type, self::$accept_types))
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return true;
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}
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}
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else
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{
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if (in_array($accept_types, self::$accept_types))
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return true;
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}
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return false;
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}
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}
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}
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