<?php
namespace weixin;
/**
 * @title        : 微信公众号基础接口
 * @desc         : 
 * @Author       : Rock
 * @Date         : 2023-04-06 19:06:59
 */

class Wx
{
	private $Appid;
	private $Appsecret;
	protected $access_token;
	public function __construct()
	{
		$this->Appid		=sysconfig('wchat.wxsub_appid');// 公众号APPID
		$this->Appsecret	=sysconfig('wchat.wxsub_secret');// 公众号SECRET
		$this->getAccessToken();
		
	}
 /**
  * @title: 获取AccessToken凭据
  * @desc: 描述
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-06 19:10:42
  */	
	public function getAccessToken()
	{
		$this->access_token=cache('client_credential_token');
		if(empty($this->access_token)){
			$tokenData = file_get_contents('https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$this->Appid.'&secret='.$this->Appsecret);
			$tokenData = json_decode($tokenData,true);
			if(isset($tokenData['access_token'])){
				$this->access_token = $tokenData['access_token'];
				cache('client_credential_token',$this->access_token,5400);
			}
		}
		return $this->access_token;
	}
 /**
  * @title: 获取unionid
  * @desc: 获取公众号openid关联的unionid
  * @param {string} {openid} {} {公众号openid}
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-08 08:57:39
  */	
	public function getUnionId($openid){
		$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$this->access_token."&openid=".$openid."&lang=zh_CN";
		$result = file_get_contents($url);
		$result = json_decode($result,true);
		if(false===isset($result['errcode']) && $result['subscribe']!=0){
			return $result['unionid'];
		}else{
			return "";
		}
	}
 /**
  * @title: 获得微信用户基本信息
  * @desc: 描述
  * @param {string} {openid} {} {公众号用户的OPENID}
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-06 19:11:33
  */	
	public function GetUserinfo(string $openid='')
	{
		$result=file_get_contents('https://api.weixin.qq.com/cgi-bin/user/info?access_token='.$this->access_token.'&openid='.$openid.'&lang=zh_CN');
		return json_decode($result,true);
	}
   /**
    * @title: 创建唯一带参数的公众号二维码
    * @desc: 描述
    * @param {int} {uid} {} {用户ID}
    * @return {*}
    * @author: Rock
    * @method: POST
    * @Date: 2023-04-06 19:12:28
    */	
  	public function CreateQrcode($uid)
    {
      	$rwm_file = runtime_path().'rwm'.DS.base64_encode('generalize_'.$uid).'.jpg';
        $json='{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$uid.'}}}';
        $result=Wxcommon::postXmlCurl($json,'https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token='.$this->access_token);
      	WLog('wx_create_qrcode',$result);
        $result=json_decode($result,true);
        $result=file_get_contents('https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket='.$result['ticket']);
        file_put_contents($rwm_file,$result);
      	return true;
	}
   /**
    * @title: 获得JSSDK票据数据
    * @desc: 描述
    * @return {*}
    * @author: Rock
    * @method: POST
    * @Date: 2023-04-06 19:27:56
    */	
  	public function JsapiTicket()
    {	
		$result=file_get_contents('https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='.$this->access_token.'&type=jsapi');
		$result=json_decode($result,true);
		return $result['ticket'];
	}
   /**
    * @title: 获得分享页面签名参数
    * @desc: 描述
    * @param {*} $url
    * @return {*}
    * @author: Rock
    * @method: POST
    * @Date: 2023-04-06 19:28:07
    */	
  	public function GetSign($url)
    {
      	$data['noncestr']=GetRandStr(32);
      	$data['jsapi_ticket']=$this->JsapiTicket();
      	$data['timestamp']=time();
      	$data['url']=$url;
      	$data['sign']=Wxcommon::MakeSign_SHA1($data);
		$data['appid']=$this->Appid;
      	return $data;
    }
 /**
  * @title: 创建公众号菜单
  * @desc: 描述
  * @param {*} {jsonmenu} {} {菜单数据}
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-06 19:28:32
  * @example
	$jsonmenu = '{
		"button":[
			{
				"type":"view",
				"name":"预约服务",
				"url":"http://sjjd.idaorui.com/"
			}
		]
	}';
	
  */	
	public function WxMenu($jsonmenu)
	{
		$URL="https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$this->access_token;
		return Wxcommon::postXmlCurl($jsonmenu,$URL);			
	}
 /**
  * @title: 微信公众号服务器事件处理
  * @desc: 描述
  * @param {*} {access_check} {} {接入验证}
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-06 19:34:39
  */	
	public function WxEvent($access_check=0)
	{
		$token = "o0Bfh608Q8XFn4SK9jYYIh";
		$postStr = file_get_contents("php://input");
		//接入验证
		if($access_check==1){
			return input('echostr');
		}
		//回调数据写入日志
		$result = \XmlToArray($postStr);
		//接收事件
		if($result['MsgType']=='event'){
			if($result['Event']=='subscribe'){
				//关注事件
				WLog('WxEvent',json_encode($result));
				$openid = $result['FromUserName'];
				$unionid= $this->getUnionId($openid);
				
			}else if($result['Event']=='unsubscribe'){
				//取关事件
				WLog('WxEvent',json_encode($result));
				
			}else if($result['Event']=='CLICK'){
				//点击事件
				
			}else if($result['Event']=='SCAN'){
				//扫码事件
				
			}
		}elseif($result['MsgType']=='text'){
			$to = $result['FromUserName'];
			$from = $result['ToUserName'];
			$text = $this->Config['wxreplay'];
			return "<xml>
			  <ToUserName><![CDATA[$to]]></ToUserName>
			  <FromUserName><![CDATA[$from]]></FromUserName>
			  <CreateTime>{time()}</CreateTime>
			  <MsgType><![CDATA[text]]></MsgType>
			  <Content><![CDATA[$text]]></Content>
			</xml>";
		}
		return 0;
	}
 /**
  * @title: 验证访问合法性
  * @desc: 描述
  * @param {string} {signature} {} {加密签名}
  * @param {string} {timestamp} {} {时间戳}
  * @param {string} {nonce} {} {随机数}
  * @param {string} {echostr} {} {随机字符串}
  * @return {*}
  * @author: Rock
  * @method: POST
  * @Date: 2023-04-07 16:21:16
  */	
	static public function checkSignature(string $signature,string $timestamp,string $nonce,string $token)
	{
		$tmpArr = array($token,$timestamp,$nonce);
		sort($tmpArr,SORT_STRING);
		$tmpStr = implode($tmpArr);
		$tmpStr = sha1($tmpStr);
		if($tmpStr == $signature){
			return true;
		}else{
			return false;
		}
	}
}
?>