多个域名使用微信获取用户信息的解决办法

深藏阁楼爱情的钟 2022-08-21 07:39 83阅读 0赞

网页授权  
应用 A  ：a.com  
其他应用：b.com，c.com ...

## 一、网页授权  ##

注意授权域名 写主域名A 的域名地址

### 1. 方式一 ###

主应用 A 获取用户信息 并缓存  
   其他应用 通过 返回的唯一标识 来调用主应用的接口 获取信息  
  
  
   1) 跳转A应用 url?redirect\_uri=外部uri  
   2) 缓存外部uri  
   3) 跳转微信授权url?redirect\_uri=当前uri  
   4) 微信授权完成 获取code  
      根据code 获取到用户所有信息 并用  
      key(code,userinfo) 格式缓存  
   5) 跳回 外部uri 并携带参数 code  
   6) 外部应用 根据code 向A应用请求接口

取到用户信息

主应用 A---------------------------------------

/**
    	 * 入口文件
    	 */
    	public function wysq(){
    
    		$this->session->set_userdata('redirect_uri',$this->input->get('redirect_uri'));
    		
    		$array	=	array(
    		    'appid'			=>$this->_appid,
    		    'redirect_uri'	=>'http://'.$_SERVER['HTTP_HOST'].'/home/api/oauth',
    		    'response_type'	=>'code',
    		    'scope'			=>'snsapi_userinfo',//snsapi_base ,snsapi_userinfo
    		    'state'			=>'state'
    		);
    		$list	=	http_build_query($array);
    		$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?'.$list.'#wechat_redirect';
    		echo '<script> location.href="'.$url.'"</script>';exit;
    
    	}
    
    	public function oauth(){
     	    $code = $this->input->get('code');
                if($code){
    		$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    		$userinfo 	=  $this->curl->simple_get("https://api.weixin.qq.com/sns/oauth2/access_token?appid=$this->_appid&secret=$this->_appsecret&code=$code&grant_type=authorization_code");
    		$user	=	json_decode($userinfo);
    		$access_token =  $user->access_token;
    		$openid 	  =  $user->openid;
    
                    //这里判断用户是否存在啊
                    if($openid !== ''){
                        $this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
                        $baseinfo 	  = $this->curl->simple_get('https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN');
                        $info  		  = json_decode($baseinfo);
    
    		    if(empty($info)){
    		         die('微信返回有误！！！');
    		    }
    		    
    		    //coding here... 将info 存入缓存 key $code : $info
    
                        $gouri = $this->session->userdata('redirect_uri');
                        $gouri = stripos($gouri, '?') === false ? $gouri.'?code='.$code:$gouri.'&code='.$code;
                        header("Location:".$gouri);
    		    exit;
                	}else{
                	    die('微信返回有误！！！');
                    }
    	    }else{
    		die('微信返回有误！！！');
    	    }
    	}
    
    	//获取用户信息接口
    	public function getinfo(){
    	    header("Content-type: application/json");
    	    $code = $this->input->get('code');
    	    if($code){
    	        //coding here... 这里根据code 拿到用户信息 并删除缓存
    	        if($userinfo){
                        echo json_encode(array('status'=>1,'msg'=>'信息获取成功！','userinfo'=>$userinfo));
    		    exit;
    		}
    		echo json_encode(array('status'=>-2,'msg'=>'code已失效，请重新授权！'));
    		exit;
    	     }else{
    		echo json_encode(array('status'=>-1,'msg'=>'code不存在！'));
    		exit;
    	     }
    	}

其他应用：--------------------------------------------------

### 2. 方式二 ###

主应用 A 只跳转从微信取到 code  
   其他应用 通过 code 直接从微信拉取用户信息  
   1) 跳转A应用 url?redirect\_uri=外部uri  
   2) 缓存外部uri  
   3) 跳转微信授权url?redirect\_uri=当前uri  
   4) 微信授权完成 获取code  
   5) 跳回 外部uri 并携带参数 code  
   6) 根据 code 从微信拉取用户信息  
  
  
 主应用 A----------------------------------------------

其他应用：------------------------------------------

//授权入口
      public function other_auth(){
            $userinfo = $this->session->userdata('userinfo');
            if(!$userinfo){
    	    $redirect_uri = '当前url'.'/getuser';
    	    $uri = 'A应用地址'."?redirect_uri=".$redirect_uri;
    	    header("Location:".$uri);
    	    exit;
    	}
       }
    
       public function getuser(){
     	    $code = $this->input->get('code');
                if($code){
    		$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    		$userinfo 	=  $this->curl->simple_get("https://api.weixin.qq.com/sns/oauth2/access_token?appid=$this->_appid&secret=$this->_appsecret&code=$code&grant_type=authorization_code");
    		$user	=	json_decode($userinfo);
    		$access_token =  $user->access_token;
    		$openid 	  =  $user->openid;
    
                    //这里判断用户是否存在啊
                    if($openid !== ''){
                        $this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
                        $baseinfo 	  = $this->curl->simple_get('https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN');
                        $info  		  = json_decode($baseinfo);
    
    		    if(empty($info)){
    		         die('微信返回有误！！！');
    		    }
    		    
    		    //coding here... 这里已经获取到用户信息了
    
    		    exit;
                	}else{
                	    die('微信返回有误！！！');
                    }
    	    }else{
    		die('微信返回有误！！！');
    	    }
    	}

## 二、jssdk 获取 ##

(这个最多只能绑定3个域名)

### 1.方式一  ###

主应用 A 获取ticket  
    其他应用通过A 提供的ticket接口 获取ticket 并组建jssdk

主应用A ---------------------------------------------

//载入时
        public function index(){
    	header("Content-type: application/json");
    	$token	=  file_get_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt');
    	$nowtime = time();
    	if($token){
    	    $str	=	explode('`',$token);
    	    if($nowtime>=$str[1] or !$str[0]){
    		$access_token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_appsecret;
    		$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    		$src 	=  $this->curl->simple_get($access_token_url);
    		$crect	=		json_decode($src);
    		$access	= $crect->access_token;
    		$time	=	time()+7100;
    		$string	=	$access.'`'.$time;
    		$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt',$string);
       	    }else{
    		$access	=	$str[0];
      	    }
    	}else{
       	    $this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    	    $src =  $this->curl->simple_get("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_appsecret);
     	    $crect = json_decode($src);
    	    $access = $crect->access_token;
    	    $time = time()+7100;
    	    $string = $access.'`'.$time;
      	    $write = file_put_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt',$string);
    	}
    	$access_token = $access; //获取到基础access_token
    	//开始获取ticket
    	$ticket	= file_get_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt');
    	if($ticket){
    	    $str = explode('`',$ticket);
    	    if($nowtime>=$str[1] or !$str[0]){
                    $this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    		$access_token_ticket_url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$access_token&type=jsapi";
    		$src 	=  $this->curl->simple_get($access_token_ticket_url);
    		$crect	=		json_decode($src);
    		$access_ticket	= $crect->ticket;
    		$time	=	time()+7100;
    		$string	=	$access_ticket.'`'.$time;
    		$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt',$string);
    	    }else{
    		$access_ticket	=	$str[0];
    	    }
    	}else{
    	    $access_token_ticket_url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$access_token&type=jsapi";
    	    $this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    	    $src 	=  $this->curl->simple_get($access_token_ticket_url);
    	    $crect	=		json_decode($src);
    	    $access_ticket	= $crect->ticket;
    	    $time	=	time()+7100;
    	    $string	=	$access_ticket.'`'.$time;
    	    $write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt',$string);
    	}
    
    	echo json_encode(array('ticket'=>$access_ticket));
    	exit;
       }

其他应用-------------------------------------------------------

public function getjssdk(){
    
            $access_ticket = ->curl->simple_get('A应用提供的ticket接口地址');;
    	$data['timestamp'] 	= $nowtime;
    	$url = urldecode($_POST['url']);//这里获取url参数有个坑
    
    	$data['jsapi_ticket']	= $access_ticket;
    	$data['nonceStr']		= $this->getRandChar(16);
    	$data['signature'] 	= sha1("jsapi_ticket={$data['jsapi_ticket']}&noncestr={$data['nonceStr']}×tamp={$data['timestamp']}&url=$url");
    	$data['appId'] 		= $this->_appid;
            echo json_encode($data);
    	exit;
       }

### 2.方式二 ###

主应用 A 组建 jssdk   
    其他应用通过A 提供的jssdk 接口 直接获取

主应用A------------------------------------------------------------------

//载入时
    	public function index(){
    		header("Content-type: application/json");
    		$token	=  file_get_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt');
    		$nowtime = time();
    		if($token){
    		 	$str	=	explode('`',$token);
    			if($nowtime>=$str[1] or !$str[0]){
    
    				$access_token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_appsecret;
    				$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    				$src 	=  $this->curl->simple_get($access_token_url);
    				$crect	=		json_decode($src);
    				$access	= $crect->access_token;
    				$time	=	time()+7100;
    				$string	=	$access.'`'.$time;
    				$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt',$string);
    			}
    			else{
    
    				$access	=	$str[0];
    			}
    		 }
    		 else{
    
    		 	$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    			$src 	=  $this->curl->simple_get("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_appsecret);
    
    			$crect	=		json_decode($src);
    			$access	= $crect->access_token;
    			$time	=	time()+7100;
    			$string	=	$access.'`'.$time;
    			$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/token.txt',$string);
    		 }
    
    		$access_token = $access; //获取到基础access_token
    		//开始获取ticket
    		$ticket	=	file_get_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt');
    		 if($ticket)
    		 {
    		 	$str	=	explode('`',$ticket);
    			if($nowtime>=$str[1] or !$str[0])
    			{
    				$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    				$access_token_ticket_url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$access_token&type=jsapi";
    				$src 	=  $this->curl->simple_get($access_token_ticket_url);
    				$crect	=		json_decode($src);
    
    				$access_ticket	= $crect->ticket;
    				$time	=	time()+7100;
    				$string	=	$access_ticket.'`'.$time;
    				$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt',$string);
    			}
    			else
    			{
    				$access_ticket	=	$str[0];
    			}
    		 }
    		 else
    		 {
    			$access_token_ticket_url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$access_token&type=jsapi";
    			$this->curl->options(array(CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false));
    			$src 	=  $this->curl->simple_get($access_token_ticket_url);
    			$crect	=		json_decode($src);
    			$access_ticket	= $crect->ticket;
    			$time	=	time()+7100;
    			$string	=	$access_ticket.'`'.$time;
    			$write	=	file_put_contents($_SERVER['DOCUMENT_ROOT'].'/ticket.txt',$string);
    		 }
    
    		 if($this->input->get('gourl'))
    		 {
    		 	redirect($this->input->get('gourl'));
    		 }
    
    		 $data['timestamp'] 	= $nowtime;
    		 $url					= urldecode($_POST['url']);//这里获取url参数有个坑
    
    		 $data['jsapi_ticket']	= $access_ticket;
    		 $data['nonceStr']		= $this->getRandChar(16);
    		 $data['signature'] 	= sha1("jsapi_ticket={$data['jsapi_ticket']}&noncestr={$data['nonceStr']}×tamp={$data['timestamp']}&url=$url");
    		 $data['appId'] 		= $this->_appid;
    
    		 echo json_encode($data);
    		 exit;
    	}