<?php


// +----------------------------------------------------------------------


// | TOPThink [ WE CAN DO IT JUST THINK ]


// +----------------------------------------------------------------------


// | Copyright (c) 2010 http://topthink.com All rights reserved.


// +----------------------------------------------------------------------


// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )


// +----------------------------------------------------------------------


// | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>


// +----------------------------------------------------------------------


// | RenrenSDK.class.php 2013-02-25


// +----------------------------------------------------------------------





class RenrenSDK extends ThinkOauth{


	/**


	 * 获取requestCode的api接口


	 * @var string


	 */


	protected $GetRequestCodeURL = 'https://graph.renren.com/oauth/authorize';





	/**


	 * 获取access_token的api接口


	 * @var string


	 */


	protected $GetAccessTokenURL = 'https://graph.renren.com/oauth/token';





	/**


	 * API根路径


	 * @var string


	 */


	protected $ApiBase = 'http://api.renren.com/restserver.do';





	/**


	 * 组装接口调用参数 并调用接口


	 * @param  string $api    微博API


	 * @param  string $param  调用API的额外参数


	 * @param  string $method HTTP请求方法 默认为GET


	 * @return json


	 */


	public function call($api, $param = '', $method = 'POST', $multi = false){


		/* 人人网调用公共参数 */


		$params = array(


			'method'       => $api,


			'access_token' => $this->Token['access_token'],


			'v'            => '1.0',


			'format'       => 'json',


		);


		


		$data = $this->http($this->url(''), $this->param($params, $param), $method);


		return json_decode($data, true);


	}


	


	/**


	 * 合并默认参数和额外参数


	 * @param array $params  默认参数


	 * @param array/string $param 额外参数


	 * @return array:


	 */


	protected function param($params, $param){


		$params = parent::param($params, $param);


		


		/* 签名 */


		ksort($params);


		$param = array();


		foreach ($params as $key => $value){


			$param[] = "{$key}={$value}";


		}


		$sign = implode('', $param).$this->AppSecret;


		$params['sig'] = md5($sign);





		return $params;


	}





	/**


	 * 解析access_token方法请求后的返回值


	 * @param string $result 获取access_token的方法的返回值


	 */


	protected function parseToken($result, $extend){


		$data = json_decode($result, true);


		if($data['access_token'] && $data['expires_in'] && $data['refresh_token'] && $data['user']['id']){


			$data['openid'] = $data['user']['id'];


			unset($data['user']);


			return $data;


		} else


			throw new Exception("获取人人网ACCESS_TOKEN出错：{$data['error_description']}");


	}


	


	/**


	 * 获取当前授权应用的openid


	 * @return string


	 */


	public function openid(){


		$data = $this->Token;


		if(!empty($data['openid']))


			return $data['openid'];


		else


			throw new Exception('没有获取到人人网用户ID！');


	}


}