第三方登录之支付宝登录，基于ThinkSDK

增加ThinkSDK的支付宝第三方登录
1、配置文件增加相应参数//支付宝登录
'THINK_SDK_ALIPAY' => array(
'APP_KEY' => '', //应用注册成功后分配的 APP ID
'APP_SECRET' => '', //应用注册成功后分配的KEY
'CALLBACK' => URL_CALLBACK . 'alipay',
),2、相关SDK代码，因为我们公司用的zend framework，我将thinkSDK移植进来肯定做了修改，所以仅供参考。支付宝登录与其他的不同，登录时有sign验证，而且只用请求一次，所以重载了thinkouath的部分类。 /**
* @Author: 杰少pakey
* @Email : [e-mail]
* @File : AlipaySDK.php
*/

class AlipaySDK extends ThinkOauth{
/**
* 获取requestCode的api接口
* @var string
*/
protected $GetRequestCodeURL = 'https://mapi.alipay.com/gateway.do';

/**
* API根路径
* @var string
*/
protected $ApiBase = 'https://mapi.alipay.com/gateway.do';

public function getRequestCodeURL(){
$this->config();
$params = array(
'input_charset' => 'utf-8',
'login_service' => 'user_auth',
'partner' => $this->AppKey,
'request_id'=>date('YmdHis').rand(1000,9999),
'return_url'=>$this->Callback,
'return_url_failed'=>$this->Callback,
'service'=>'wap.user.common.login',
);
$params['sign']=$this->createSign($params);
$params['sign_type']='MD5';
return $this->GetRequestCodeURL . '?' . http_build_query($params);
}

public function getAccessToken($code='',$extend=''){
$sign=$_GET['sign'];
unset($_GET['a'],$_GET['type'],$_GET['sign']);
if ($sign===$this->createSign($_GET)){
$this->Token=array(
'access_token'=>$_GET['login_token'],
'openid'=>$_GET['user_id'],
);
return $this->Token;
}else{
exit('签名验证失败');
}
}

protected function createSign($params)
{
ksort($params);
$stringToBeSigned = "";
$i = 0;
foreach ($params as $k => $v) {
if ($i == 0) {
$stringToBeSigned .= "$k" . "=" . "$v";
} else {
$stringToBeSigned .= "&" . "$k" . "=" . "$v";
}
$i++;
}
unset ($k, $v);
return md5($stringToBeSigned.$this->AppSecret);
}

/**
* 组装接口调用参数 并调用接口
*/
public function call($api, $param = array(), $method = 'GET', $multi = false){
$param['partner']=$this->AppKey;
$param['sign']=$this->createSign($param);
$param['sign_type']='MD5';
$data = $this->http($this->url($api), $param, $method);
return ($data);
}

/**
* 解析access_token方法请求后的返回值
*/
protected function parseToken($result, $extend){

}

/**
* 获取当前授权应用的openid
*/
public function openid(){
$data = $this->Token;
if(!empty($data['openid']))
return $data['openid'];
else
exit('没有获取到支付宝用户ID！');
}

}3、获取信息的接口，支付宝默认仅提供userid和usertype，更多需要去申请。另外返回是xml，需要解析，这里就简单做下示例。public static function alipay($token){
$alipay=DKOauth::getInstance('alipay', $token);
$param=array(
'_input_charset'=>'utf-8',
'input_charset'=>'utf-8',
'service'=>'mobile.common.login.userInfo.query',
'token'=>$token['access_token'],
'format'=>'json',
);
$data=$alipay->call('',$param);
return $data;
}首发：http://pakey.net/blog/557.html，有问题请到这里留言

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