php使用第三方登录

目前只做了微博和qq的，前面的去connect.qq.com,open.weibo.com注册的步骤省略

qq和weibo站点都有可以现在的php版本的api，qq的api相对高大上一些。

<script>
function toLogin(who)
{
     //以下为按钮点击事件的逻辑。注意这里要重新打开窗口
     //否则后面跳转到QQ登录，授权页面时会直接缩小当前浏览器的窗口，而不是打开新窗口
　　　//"/dlt/index.php?wherego="+who+"&back_url=$url",这里的$url需要使用urlencode，js的话要用escape，encodeUrl函数
　　//嵌套在iframe里时要用window.top.open
    var A=window.open("/dlt/index.php?wherego="+who,"OauthLogin","width=450,height=320,menubar=0,scrollbars=1,resizable=1,status=1,titlebar=0,toolbar=0,location=1");
}
</script>
<li class="dl_tips">
<a href="javascript:void(0);" onclick="toLogin('qq');"><cite><img src="<?=static_path('images/login/qq.png')?>" /></cite><cite>腾讯QQ登录</cite></a>
<a href="javascript:void(0);" onclick="toLogin('wb');"><cite><img src="<?=static_path('images/login/wb.png')?>" /></cite><cite>新浪微博登录</cite></a>
</li>

 整个实现登录的流程在一个独立的包里结构如下

/dlt---根目录
/dlt/index.php---入口地址
/dlt/callback.php--回调地址

/dlt/lib---自定类，配置义目录
/dlt/lib/dlt_client.php---流程入口
/dlt/lib/db_client.php
/dlt/lib/model.php


/dlt/sdk---第三方sdk目录
/dlt/qq/API---qq的sdk目录，目录详情省略
/dlt/wb/API---weibo的sdk目录，目录详情省略

/dlt/var---日志记录目录

 入口地址

<?php
$wherego = $_GET['wherego'];
if(!empty($wherego) && in_array( $wherego,array('qq','wb'))){
	require 'lib/dlt_client.php';
	$dlt_client = new DLT($wherego);
	$dlt_client->save_referer();
	$dlt_client->go();
}else{
	exit('传入参数错误');
}

 回调地址

<?php
$whereback = $_GET['whereback'];
if(!empty($whereback) && in_array( $whereback,array('qq','wb'))){
	require 'lib/dlt_client.php';
	$dlt_client = new DLT($whereback);
	$dlt_client->callback();
}else{
	exit('回传参数错误');
}

 流程入口文件

<?php
class DLT {
	public $who;
	public $db;
	public $user_model;
	public $e_logo_prefix = 'http://user.X.com/static/';
	private $_sdk_path;
	private $_dlt_back_url;
	
	public function __construct($who){
		$this->who = $who;
		$this->_sdk_path = dirname(dirname(__FILE__)) . '/sdk/';
	}
	
	public function save_referer(){
		if(!empty($_GET['back_url'])){
			setcookie ('dlt_back', $_GET['back_url'], time()+60*5, '/', 'X.com');
		}else if(!empty($_SERVER['HTTP_REFERER'])){
			setcookie ('dlt_back', $_SERVER['HTTP_REFERER'], time()+60*5, '/', 'X.com');
		}else{
			return false;
		}
	}
	
	public function go(){
		$function_name = 'go_' . $this->who;
		$this->$function_name();
	}
	
	public function callback(){
		$this->_dlt_back_url = $_COOKIE['dlt_back'];
		if(empty($this->_dlt_back_url)){
			$this->_dlt_back_url = 'http://user.X.com';
		}
		$function_name = 'callback_' . $this->who;
		$this->$function_name();
	}
	
	public function go_qq(){
		require_once($this->_sdk_path . "qq/API/qqConnectAPI.php");
		$qc = new QC();
		$qc->qq_login();
	}
	
	public function callback_qq(){
		require_once($this->_sdk_path . "qq/API/qqConnectAPI.php");
		$qc = new QC();
		$access_token = $qc->qq_callback();
		$openid = $qc->get_openid();
		//var_dump($access_token);
		//var_dump($openid);
		if(empty($openid) || empty($access_token)){
			exit('get QQ token error!');
		}
		$qc = new QC($access_token,$openid);
		$arr = $qc->get_user_info();
		//var_dump($arr);exit;
		if(!isset($arr['nickname'])){
			exit('get QQ userinfo error!');
		}
		$user_info['m_o_name'] = $arr["nickname"];
		$user_info['m_dlt_type'] = 'qq';
		$user_info['m_dlt_id'] = $openid;

		$this->do_login($user_info);
	}
	
	public function go_wb(){
		require_once($this->_sdk_path . "wb/API/wbConnectAPI.php");
		$wbc = new WBC();
		$wbc->wb_login();
	}
	
	public function callback_wb(){
		require_once($this->_sdk_path . "wb/API/wbConnectAPI.php");
		$wbc = new WBC();
		$access_token = $wbc->get_token();
		$uid = $wbc->get_uid();
		//var_dump($access_token);
		//var_dump($uid);
		if(empty($uid) || empty($access_token)){
			exit('get WB token error!');
		}
		$arr = $wbc->get_user_info();
		//var_dump($arr['name']);exit;
		if(!isset($arr['name'])){
			exit('get WB userinfo error!');
		}
		$user_info['m_o_name'] = $arr["name"];
		$user_info['m_dlt_type'] = 'wb';
		$user_info['m_dlt_id'] = $uid;

		$this->do_login($user_info);
	}
	
	public function do_login($user_info){
		require 'model.php';
　　　　		$this->model = new Model();
　　　　　　　　　　//没有就插入，有就返回唯一id
		$member_info = $this->model->check_member($user_info);
		if(empty($member_info)){
			exit('db operate error!');
		}
　　　　　　　　　　//回写获取的昵称
		$member_info['m_o_name'] = $user_info['m_o_name'];
		$this->init_session($member_info);
	}

	public function init_session($member_info){
		$data = $this->model->get_all($member_info['m_id']);
		
		$data['member_id'] = $data['m_id']; //会员id
		$data['member_name'] = $data ['m_o_name'] = $member_info['m_o_name']; //会员名
		$data['member_email'] = $data ['m_email']; //会员注册邮箱
		$data['contact_name'] = $data['mp_name']; //会员名
		$data['erp_source'] = $data ['m_source']; //会员来源地
		$data['member_identity'] = 1; //会员身份

		foreach($data as $key => $value){
			if(!in_array($key,$sessionArr)){
				unset($data[$key]);
			}
		}
		//因为两者的api中都是用了session_start，所以要先销毁掉。
		session_destroy();
		$config["lifetime"]=0;
		$config["path"] = '/';
		$config["domain"] = '.X.com'; 
		$config["secure"]=false;
		$config["httponly"] =false;
		session_set_cookie_params( 
			$config["lifetime"], 
			$config["path"], 
			$config["domain"], 
			$config["secure"], 
			$config["httponly"] 
		);
		session_name('mphsess_id');
		session_start();
　　		foreach($data as $key => $val){
			$_SESSION[$key] = $val;
		}
		$this->dlt_back();
	}
	
	//这里的window.opener.location.reload()有兼容性问题，可能还有跨域的问题，我在news站点使用，user站点的窗口不能调用父窗口news的reload方法。
　　　　//window.close()也有浏览器兼容性问题，有的需要添加window.opener=null
	public function dlt_back(){
		//header("Location: {$this->_dlt_back_url}");
		echo <<<EOT
<script language="javascript" type="text/javascript">
window.opener.location='{$this->_dlt_back_url}';
window.close();
</script>
EOT;
exit;
	}
}