<?php 
if (!defined('WEBSITE'))
{
	include_once(dirname(__FILE__).'/cls_http.php');
	class oath2 extends cls_http
	{
		public $tokenURL;
		public $authorizeURL;
		public $userURL;
		
		
		public $scope = '';
		public $app_key;
		public $app_secret;
		public $display = '';
		public $graphURL = '';
		
		
		public $token = array();
		public $meth = array();
		
		public $post_login = array();
		public $post_token = array();
		public $post_msg = array();
		
		
		function login( $callblock)
		{
			$pare = array();
			$pare['client_id'] = $this->app_key;
			$pare['redirect_uri'] = $callblock;
			$pare['response_type'] = 'code';
			//$pare['state'] = $callblock;
			$pare['scope'] = $this->scope;
			$pare['display'] = $this->display;
			setcookie('___OATH2_CALLBLOCK__' , $callblock , time()+3600 , '/');
			$p = array_merge($pare , $this->post_login);
			$p = $this->unset_null($p);
			return $this->authorizeURL .'?'. http_build_query($p);
		}
		
		function getAccessToken()
		{
			if(method_exists($this , 'gettoken'))
			{
				$this->token = $this->gettoken();
				return $this->token;
			}
			
			$pare = array();
			$pare['client_id'] = $this->app_key;
			$pare['client_secret'] = $this->app_secret;
			$pare['grant_type'] = 'authorization_code';
			$pare['code'] = $_REQUEST['code'];
			$pare['redirect_uri'] = $_COOKIE['___OATH2_CALLBLOCK__'];
			//print_r($_COOKIE);
			setcookie('___OATH2_CALLBLOCK__' , '' , time()-3600 , '/');
			$p = array_merge( $pare , $this->post_token);
			$p = $this->unset_null($p);
			
			
			
			$result = $this->http($this->tokenURL , $this->meth , $p);
			
			if(method_exists($this , 'getGraph'))
			{
				$token = $this->getGraph($result);
			}
			else
			{
				$token = json_decode($result , true);
			}
			$this->token = $token;
			return $token;
		}
		
		function setAccessToken( $token ){$this->token = $token; return true;}
		
		function getMessage()
		{
			$pare = array();
			$pare['client_id'] = $this->app_key;
			$pare['client_secret'] = $this->app_secret;
			$pare['access_token'] = $this->token['access_token'];
			
			if(!empty($this->token['refresh_token']))
			{
				$pare['refresh_token'] = $this->token['refresh_token'];
			}
			
			
			$p = array_merge( $pare , $this->token , $this->post_msg);
			$p = $this->unset_null($p);
			
			if(method_exists($this , 'sign'))
			{
				$this->sign( $p );
			}
			
			$result = $this->http($this->userURL , $this->meth  , $p);
			
			if(method_exists($this , 'is_error'))
			{
				$info = $this->is_error($result);
			}
			else
			{
				$info = json_decode($result , true);
			}
			
			if( method_exists($this , 'message') )
			{
				$info = $this->message($info);
			}
			return $info;
		}
		
		
		function unset_null( $pare ){$arr = $pare;foreach($arr as $key => $val){if(empty($val)){unset($arr[$key]);}}return $arr;}
		
	}
}
?>