<?php
class LongbingUpgrade{

    private $uniacid ;
    //产品/商品名称
    private $goods_name ;


    //授权服务器地址
    private $base_url ;
    //检查授权的地址
    private $check_url ;
    //上传小程序
    private $uploadWxapp_url ;
    private $get_auth_url ;

    //获取授权详情
    private $get_domain_param_url;

    private $http_host ;
    private $server_name ;
    private $request_time ;


    private $public_key ;
    private $domain_name_info ;


    private $goods_version_info ; //版本的基本信息
    private $goods_version_updata_info ; //包括文件下载地址  和 解压密码


    private $errorMsg = '授权失败，请联系系统提供商，Tel：15680635005 。';

    private $is_debug  = false ;
    private $token_path;

    function __construct($uniacid ,  $goodsName ,$is_debug = false ){

        //是否开启调试
        $this->is_debug  = $is_debug ;

        $this->token_path = dirname(__FILE__).'/token.key';

        $this->uniacid = $uniacid .'';

        $this->goods_name = $goodsName;
        $this->base_url = 'http://shouquan.migugu.com/';
        $this->base_url = $this->is_debug ?    'http://shouquan.migugu.com/' : 'http://auth.soqq.com.cn/' ;
        $this->base_url = 'http://auth.soqq.com.cn/'; //ToDo 调试模式 线下接口 授权接口写死

        $this->check_url = $this->base_url .'auth/home.Index/index';
        $this->uploadWxapp_url = $this->base_url .'auth/home.Index/uploadWxapp';
        $this->get_auth_url = $this->base_url .'auth/home.Index/getAuth' ;
        $this->get_domain_param_url = $this->base_url .'auth/home.Index/domain_param' ;
        $this->get_wxapp_version_url = $this->base_url .'auth/home.Index/getWxappVersion' ;
        $this->clear_up_token  = $this->base_url .'auth/home.Index/clearToken' ;


        $this->http_host = $_SERVER['HTTP_HOST'];
        $this->server_name = $_SERVER['SERVER_NAME'];
        $this->request_time = $_SERVER['REQUEST_TIME'].'';

    }

    /**
     * @author jingshuixian
     * @DataTime: 2020-06-08 13:12
     * @功能说明:
     */
    public function checkAuth(){
        try {
            //清除双方授权token --重新获取
            $this->clearUp();

            $this->public_key = $this->getPublicKey();
            $this->getUpgradeMsg();

            if(empty($this->public_key)){
                return $this->returnErrorDataInfo( '(001)'.$this->errorMsg );
            }else{

                $data['domain'] = $this->domain_name_info ;
                $data['version'] = $this->goods_version_info ;

                return $this->returnDataInfo($data);
            }
        }catch (\Exception $e){
            return $this->returnErrorDataInfo( "请用授权域名登陆 进行站点绑定" );
        }

    }


    /**
     * @author jingshuixian
     * @DataTime: 2020-06-08 11:52
     * @功能说明: 站点授权信息
     */
    private function getAuthMsg(){
        if(empty($this->domain_name_info) || count($this->domain_name_info) == 0 ){
            return $this->returnDataInfo([],'(002)'.$this->errorMsg);
        }else{
            return $this->returnDataInfo($this->domain_name_info);
        }
    }


    /**
     * @author jingshuixian
     * @DataTime: 2020-06-05 12:55
     * @功能说明:
     */
    private function getUpgradeMsg(){

        try{

            $this->public_key = $this->getPublicKey();
            if(!$this->public_key){
                return $this->returnErrorDataInfo( "请用授权域名登陆 进行站点绑定" );
            }

            $siginStr = $this->getSiginData([]);
            $result = $this->curl_post($this->check_url ,$this->getPostData($siginStr)) ;
            $result = json_decode( $result,true);

            $data = $result['data'];

            openssl_public_decrypt(base64_decode($data['goods_version_updata_info']), $sigin, $this->public_key);

            $sigin = json_decode($sigin , true) ;

            $this->goods_version_info =  $data['goods_version_info'];
            $this->goods_version_updata_info =  $sigin;

            return $this->returnDataInfo($this->goods_version_info);

        }catch (Exception $e){
            return $this->returnErrorDataInfo( "获取更新信息异常" );
        }

    }

    /**
     * @author jingshuixian
     * @DataTime: 2020-06-05 14:09
     * @功能说明: 开始升级
     */
    public function update($toFilePath = null  , $tempPaht = null){
        //获取升级包信息
        //检查权限
        //下载升级包
        //解压升级包
        //写入版本文件

        if(!$this->goods_version_info && !$this->goods_version_updata_info){
            $this->getUpgradeMsg();
        }

        //状态码判断 2020/6/18 16:45  /  lichuanming
        if($this->goods_version_updata_info['url'] === 'ae40000001'){
            return $this->returnErrorDataInfo ('升级服务已到期') ;
        }

        $result = $this->get_file($this->goods_version_updata_info['url'] , $tempPaht);

        if($result === false){
            return $this->returnErrorDataInfo ('下载文件失败') ;
        }

        $toFilePath  = empty($toFilePath) ?  './' : $toFilePath ;
        $this->unzip($result , $toFilePath , $this->goods_version_updata_info['password'] );

        return $this->returnDataInfo([],'更新成功' , '200') ;
    }

    /**
     * @param array $data
     * @param string $msg
     * @param int $code
     * @功能说明: 返回 json 数据
     * @author jingshuixian
     * @DataTime: 2020-06-06 21:25
     */
    public function returnDataInfo($data = [] , $msg = '' , $code = 20000){
        $resultData = [
            'code' => $code ,
            'msg'  => $msg,
            'data' => $data
        ];
        return $resultData ;
    }

    public function returnErrorDataInfo($msg = '' , $code = -1 , $data = []){
        return $this->returnDataInfo($data ,$msg  ,$code);
    }


    /**
     * @author jingshuixian
     * @DataTime: 2020-06-05 16:02
     * @功能说明:上传微信小程序
     */
    public function uploadWxapp($uploadInfo,$wxapp_version = '')
    {

        //获取当前系统版本信息
        //提交需要上传的版本信息
        //验证系统的平台ID    版本ID  域名  平台ID  模块ID  上传KEY
        //加密签名
        //提交上传

        /*try{
            if(!$this->goods_version_updata_info){
                $this->getUpgradeMsg();
            }

            $siginStr = $this->getSiginData();

            $postData =  $this->getPostData($siginStr);
            $uploadInfo =  $this->getSiginDataByOpenSSL($uploadInfo);
            $this->log("uploadWxapp = uploadInfo", $uploadInfo);
            $postData['ext_data'] = $uploadInfo;

            $this->log("uploadWxapp = postData", $postData);

            $result = $this->curl_post( $this->uploadWxapp_url  ,$postData) ;

            $this->log( "获取授权信息一" ,$result);

            $result = json_decode( $result,true);

            $this->log( "获取授权信息二" ,$result);

            return $this->returnDataInfo($result);
        }catch (\Exception $e){
            return $this->returnErrorDataInfo('上传失败');
        }*/


        try{
            $postData =  $this->getPostData('');
            $postData['ext_data'] = json_encode($uploadInfo);
            $postData['wxapp_version'] = $wxapp_version; //新增微信版本号

            $this->log("uploadWxapp = postData", $postData);

            $result = $this->curl_post( $this->uploadWxapp_url  ,$postData) ;

            $this->log( "获取授权信息一" ,$result);

            $result = json_decode( $result,true);

            $this->log( "获取授权信息二" ,$result);

            return empty($result) ?  $this->returnErrorDataInfo('上传繁忙，稍后再试。。(001)') :  $result;
        }catch (\Exception $e){
            return $this->returnErrorDataInfo('上传繁忙，稍后再试。。(002)');
        }

    }

    /**
     **@param $version_no
     * @功能说明: 当前系统版本号
     * @author lichuanming
     * @DataTime: 2020/6/22 17:31
     */
    public function getWxappVersion($version_no){
        try{
            $postData =  $this->getPostData('');

            $postData['version'] = $version_no;
            $this->log("uploadWxapp = postData", $postData);

            $result = $this->curl_post( $this->get_wxapp_version_url  ,$postData) ;
            $this->log( "获取版本信息一" ,$result);

            $result = json_decode( $result,true);

            $this->log( "获取版本信息二" ,$result);

            return $result['data'];
        }catch (\Exception $e){
            return $this->returnErrorDataInfo('无法获取小程序版本信息');
        }
    }


    /**
     **@author lichuanming
     * @DataTime: 2020/6/18 19:13
     * @功能说明: 获取saas端的值
     */
    public function getsAuthConfig(){

        $this->public_key = $this->getPublicKey();

        if(empty($this->public_key )){

            return [];
        }

        $siginStr = $this->getSiginData([]);

        $result = $this->curl_post($this->get_domain_param_url ,$this->getPostData($siginStr)) ;

        $result = json_decode( $result,true);

        $param_list = $result['data']['param_list'];

        if(is_array($param_list)){
            foreach ($param_list as $key =>$item){
                $param = '';
                openssl_public_decrypt(base64_decode($item), $param, $this->public_key);
                $param_list[$key] = $param;
            }
        }

        return $param_list;
    }


    /**
     * @param $siginStr
     * @功能说明: 获取提交信息
     * @author jingshuixian
     * @DataTime: 2020-06-05 16:35
     */
    private function getPostData($siginStr)
    {

        $postData = $this->getPublicPostData();
        $postData['sigin' ] =  $siginStr;

        return $postData ;
    }

    /**
     * @author jingshuixian
     * @DataTime: 2020-06-05 16:13
     * @功能说明: 获取签名信息
     */
    private function getSiginData($extData = [] , $siginType = 1 )
    {

        $data = $this->getPublicPostData();
        if (!empty($extData)){
            $data['ext_data'] = $extData ;
        }

        ksort($data);
        $str_data = json_encode($data);

        //$siginType = 1 采用 公钥加密

        if($siginType == 1 ){
            openssl_public_encrypt($str_data, $encrypted, $this->public_key);

            if(empty($encrypted)){
                return  false ;
            }
            //处理特殊字符
            $encrypted = base64_encode($encrypted);

        }else{ #其他只做数据签名,不做信息加密
            $encrypted =$this->getSiginDataByHash($data);
        }
        return  $encrypted ;

    }


    private function getSiginDataByOpenSSL($data){
        $str_data = is_array($data) ? json_encode($data) : $data;
        openssl_public_encrypt($str_data, $encrypted, $this->public_key);
        if(empty($encrypted)){
            return  false ;
        }
        //处理特殊字符
        $encrypted = base64_encode($encrypted);
        return $encrypted;
    }


    /**
     * @param $data
     * @功能说明: 普通数据签名算法(只支持 str 和数组 签名 )
     * @author jingshuixian
     * @DataTime: 2020-06-06 15:10
     */
    private function getSiginDataByHash($data){
        $data['token'] = $data['token']?$data['token']:'';
        $this->log( 'getSiginDataByHash data ' , $data);
        $data = is_array( $data ) ? json_encode($data)  : (is_string($data) ? $data : time() . '') . 'LongbingShuixian';

        $siginStr = hash( 'sha256', $data) ;

        return $siginStr ;
    }

    /**
     * @author jingshuixian
     * @DataTime: 2020-06-06 14:45
     * @功能说明: 获取公共提交数据
     */
    private function getPublicPostData(){
        $app_model_name =  config('app.AdminModelList')['app_model_name'];
        $token =  @file_get_contents($this->token_path) ;
        $token =  $token?json_decode($token,true):'';
        if(!empty($token)){
            $token = $token['token'];
        }

        $data = [
            'uniacid' => $this->uniacid ,
            'app_model_name' => $app_model_name , //2020/6/22 新增参数 By.lichuanming
            'goods_name' => $this->goods_name,
            'http_host' => $this->http_host ,
            'server_name' => $this->server_name ,
            'request_time' => $this->request_time ,
            'token' => $token
        ];
        return $data ;
    }

    /**
     * @param $url
     * @param string $folder
     * @功能说明: 下载文件
     * @author jingshuixian
     * @DataTime: 2020-06-05 14:15
     */
    private function get_file($url, $folder = './data/upgradex/') {
        set_time_limit(24 * 60 * 60);
        $target_dir = $folder . '';
        if (!is_dir($target_dir)) {
            mkdir($target_dir, 0777, true);
        }
        $newfname = date('Ymd') . rand(1000, 10000000) . uniqid() . '.zip';
        $newfname = $target_dir . $newfname;
        $file = @fopen($url, "rb");
        if ($file) {
            $newf = fopen($newfname, "wb");
            if ($newf) while (!feof($file)) {
                fwrite($newf, fread($file, 1024 * 8) , 1024 * 8);
            }

            fclose($file);
            if ($newf) {
                fclose($newf);
            }

        }else{
            return false ;
        }

        return $newfname;
    }

    /**
     * @param $filename
     * @param $toFilepath
     * @param null $password 解压密码
     * @功能说明: 解压文件
     * @author jingshuixian
     * @DataTime: 2020-06-05 14:44
     */
    private function unzip($filename  , $toFilepath  , $password = null){
        $zip = new ZipArchive;
        $res = $zip->open($filename);
        if ($res === true){
            $password  && $zip->setPassword($password);    //解压密码
            $zip->extractTo($toFilepath);
            $zip->close();
        }

        return true ;
    }

    /**
     * @param $key
     * @param $value
     * @功能说明: 打印日志
     * @author jingshuixian
     * @DataTime: 2020-06-05 13:29
     */
    public function log($key , $value){
        //关闭和开启调试
        if($this->is_debug)
        {
            echo $key ." = " .(is_array($value) ? json_encode($value) : $value)  . '<br /><br /><br /> ';
        }else{
            return false ;
        }


    }

    /**
     * @author jingshuixian
     * @DataTime: 2020-06-05 13:34
     * @功能说明: 获取秘钥
     */
    private function getPublicKey(){


        if(!empty($this->public_key)){
            $this->log( "已经获得 " , $this->public_key);
            return  $this->public_key ;
        }

        $this->log('获取秘钥：' ,'开始');
        $siginStr = $this->getSiginData([] , 2);
        $this->log('获取秘钥 sigin：' ,$siginStr);

        $result = $this->curl_post($this->get_auth_url  ,$this->getPostData($siginStr) ) ;
        $this->log('获取秘钥 result：' ,$result);

        $result = json_decode( $result,true);
        // todo 需要判断返回结果是否正确

        $this->domain_name_info = $result['data']['domain_name_info'];

        //写入token文件
        $this->log("获取秘钥 保持token路径: " , dirname(__FILE__));

        $token = $result['data']['token'];
        $resultWriteToken = $this->writein_token($token);
        $this->log("获取秘钥 写入token: " , $resultWriteToken ? '成功' : '失败' );

        $this->public_key = $result['data']['public_key'];
        return $this->public_key;

    }

    /**
     * @param $url
     * @param array $data
     * @功能说明: post 请求
     * @author jingshuixian
     * @DataTime: 2020-06-05 12:53
     */
    private function curl_post($url , $data=array()){

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);

        // POST数据
        curl_setopt($ch, CURLOPT_POST, 1);
        // 把post的变量加上
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

        $output = curl_exec($ch);

        curl_close($ch);

        return $output;

    }

    /**
     **@param array $token
     * @功能说明: token写入
     * @author lichuanming
     * @DataTime: 2020/6/19 11:35
     */
    private function writein_token($token):bool {
        $resultWriteToken = false;
        if(is_array($token)){
            //数据正常 直接保存
            $resultWriteToken = file_put_contents($this->token_path , json_encode($token));

        }else{
            //读取原有token 数据
            $token =  @file_get_contents($this->token_path) ;
            $token =  $token?json_decode($token,true):'';

            if(!empty($token)){
                if($token['token_expiration_time'] < time()){
                    $token['token'] = '';
                    //写入空token
                    $resultWriteToken = file_put_contents($this->token_path , json_encode($token));
                }
            }
        }

        return  $resultWriteToken?true:false;
    }

    /**
     **@author lichuanming
     * @DataTime: 2020/6/23 14:33
     * @功能说明: 重置双方通讯token
     */
    private function clearUp(){
        //读取原有token 数据
        $token =  @file_get_contents($this->token_path) ;
        $token =  $token?json_decode($token,true):'';

        if(!empty($token)){
            if($token['token_expiration_time'] < time() || !$token['token']){ //token 过期
                $this->public_key = $this->getPublicKey();
                $siginStr = $this->getSiginData([]);

                $result = $this->curl_post($this->clear_up_token,$this->getPostData($siginStr));
                $result = json_decode($result,true);
                if($result['data']['clear']){ //清除成功
                    $this->public_key = null;
                }
            }
        }
    }
}