QQ互联OAuth

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1. [代码][PHP]代码     跳至                     [1]     [全屏预览]

/**
 * QQ互联 oauth
 * @author dyllen
 *
 */
class Oauth
{
	//取Authorization Code Url
	const PC_CODE_URL = 'https://graph.qq.com/oauth2.0/authorize';
	
	//取Access Token Url
	const PC_ACCESS_TOKEN_URL = 'https://graph.qq.com/oauth2.0/token';
	
	//取用户 Open Id Url
	const OPEN_ID_URL = 'https://graph.qq.com/oauth2.0/me';
	
	//用户授权之后的回调地址
	public $redirectUri = null;
	
	// App Id
	public $appid = null;
	
	//App Key
	public $appKey = null;
	
	//授权列表
	//字符串，多个用逗号隔开
	public $scope = null;
	
	//授权code
	public $code = null;
	
	//续期access token的凭证
	public $refreshToken = null;
	
	//access token
	public $accessToken = null;
	
	//access token 有效期，单位秒
	public $expiresIn = null;
	
	//state
	public $state = null;
	
	public $openid = null;
	
	//construct
	public function __construct($config=[])
	{
		foreach($config as $key => $value) {
			$this->$key = $value;
		}
	}
	
	/**
	 * 得到获取Code的url
	 * @throws \InvalidArgumentException
	 * @return string
	 */
	public function codeUrl()
	{
		if (!$this->redirectUri) {
			throw new \Exception('parameter $redirectUri must be set.');
		}
		$query = [
				'response_type' => 'code',
				'client_id' => $this->appid,
				'redirect_uri' => $this->redirectUri,
				'state' => $this->getState(),
				'scope' => $this->scope,
		];
	
		return self::PC_CODE_URL . '?' . http_build_query($query);
	}
	
	/**
	 * 取access token
	 * @throws Exception
	 * @return boolean
	 */
	public function getAccessToken()
	{
		$params = [
				'grant_type' => 'authorization_code',
				'client_id' => $this->appid,
				'client_secret' => $this->appKey,
				'code' => $this->code,
				'redirect_uri' => $this->redirectUri,
		];
	
		$url = self::PC_ACCESS_TOKEN_URL . '?' . http_build_query($params);
		$content = $this->getUrl($url);
		parse_str($content, $res);
		if ( !isset($res['access_token']) ) {
			$this->thrwoError($content);
		}
	
		$this->accessToken = $res['access_token'];
		$this->expiresIn = $res['expires_in'];
		$this->refreshToken = $res['refresh_token'];
	
		return true;
	}
	
	/**
	 * 刷新access token
	 * @throws Exception
	 * @return boolean
	 */
	public function refreshToken()
	{
		$params = [
				'grant_type' => 'refresh_token',
				'client_id' => $this->appid,
				'client_secret' => $this->appKey,
				'refresh_token' => $this->refreshToken,
		];
	
		$url = self::PC_ACCESS_TOKEN_URL . '?' . http_build_query($params);
		$content = $this->getUrl($url);
		parse_str($content, $res);
		if ( !isset($res['access_token']) ) {
			$this->thrwoError($content);
		}
	
		$this->accessToken = $res['access_token'];
		$this->expiresIn = $res['expires_in'];
		$this->refreshToken = $res['refresh_token'];
	
		return true;
	}
	
	/**
	 * 取用户open id
	 * @return string
	 */
	public function getOpenid()
	{
		$params = [
				'access_token' => $this->accessToken,
		];
	
		$url = self::OPEN_ID_URL . '?' . http_build_query($params);
			
		$this->openid = $this->parseOpenid( $this->getUrl($url) );
		
		return $this->openid;
	}
	
	/**
	 * get方式取url内容
	 * @param string $url
	 * @return mixed
	 */
	public function getUrl($url)
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		curl_setopt($ch, CURLOPT_URL, $url);
		$response =  curl_exec($ch);
		curl_close($ch);
	
		return $response;
	}
	
	/**
	 * post方式取url内容
	 * @param string $url
	 * @param array $keysArr
	 * @param number $flag
	 * @return mixed
	 */
	public function postUrl($url, $keysArr, $flag = 0)
	{
		$ch = curl_init();
		if(! $flag) curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		curl_setopt($ch, CURLOPT_POST, TRUE);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $keysArr);
		curl_setopt($ch, CURLOPT_URL, $url);
		$ret = curl_exec($ch);
	
		curl_close($ch);
		return $ret;
	}
	
	
	/**
	 * 取state
	 * @return string
	 */
	protected function getState()
	{
		$this->state = md5(uniqid(rand(), true));
		//state暂存在缓存里面
		//自己定义
                //。。。。。。。。。
	
		return $this->state;
	}
	
	/**
	 * 验证state
	 * @return boolean
	 */
	protected function verifyState()
	{
		//。。。。。。。
	}
	
    /**
     * 抛出异常
     * @param string $error
     * @throws \Exception
     */
	protected function thrwoError($error)
	{
		$subError = substr($error, strpos($error, "{"));
		$subError = strstr($subError, "}", true) . "}";
		$error = json_decode($subError, true);
		
		throw new \Exception($error['error_description'], (int)$error['error']);
	}
	
	/**
	 * 从获取openid接口的返回数据中解析出openid
	 * @param string $str
	 * @return string
	 */
	protected function parseOpenid($str)
	{
		$subStr = substr($str, strpos($str, "{"));
		$subStr = strstr($subStr, "}", true) . "}";
		$strArr = json_decode($subStr, true);
		if(!isset($strArr['openid'])) {
			$this->thrwoError($str);
		}
		
		return $strArr['openid'];
	}
}

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