<?php
namespace Open\OAuth2;

use \Helpers\View as view;
use \Helpers\Table;

class Server extends \Zend_Controller_Plugin_Abstract
{
	public $db;
	public $auth = NULL;
	public $user;
	private $config;
	public $table;
	
	public function __construct($db = NULL,$auth = NULL){
		
		if(empty($db))
		{
			$this->db = \Zend_Registry::get('db');
		}else{
			$this->db = $db;
		}
		
		$this->config = \Zend_Registry::get('config');
		$this->table = new Table();
	}
	
	//根据ID或者Client_id获得app的信息
	public function getClientInfo($id)
	{
		if(empty($id))
		{
			return "无效参数";
		}
		
		if(is_numeric($id))
		{
			$field = "id";
		}else{
			$field = "client_id";
		}
		
		$sql = "SELECT * FROM {$this->table->oauth_clients} WHERE $field=? LIMIT 1";
		$sth = $this->db->prepare($sql);
		$sth->execute(array($id));
		$row = $sth->fetch();
		
		return $row;
	}
	
	//验证App
	public function clientCredentials($client_id,$client_secret)
	{
		
		$client = $this->getClientInfo($client_id);
		
		if(empty($client['id']))
		{
			return "此应用ID未被证实";
		}
		
		if($client['status'] == -1)
		{
			return "此应用已关闭";
		}
		
		if($client['client_secret'] !== $client_secret)
		{
			return "Invalid client secret";
		}
		
		return true;
	}
	
	
}