小程序前端代码
function WXlogin(){ wx.login({ success: function (code) { wx.getUserInfo({ success:function(userInfo){ //发起请求 wx.request({ url: domain+‘wxopen/wxapp/login‘, method:"POST", data:{ code: code.code, encryptedData: userInfo.encryptedData, iv: userInfo.iv, rawData: userInfo.rawData, signature: userInfo.signature, appid:extConfig.appid }, success:function(res){ console.log(res,‘login‘) wx.setStorageSync(‘session_3rd‘, res.data);//存token } }) } }) } }); } //重新登陆更新 function reLogin(sess_3rd){ console.log(sess_3rd,‘s3rd‘) //发起请求 wx.request({ url: domain + ‘wxopen/wxapp/reLogin‘, method: "POST", data: { session: sess_3rd, }, success: function (res) { console.log(res, ‘relogin‘) if(res.data == 0){ WXlogin();//重新登陆 }else{ wx.setStorageSync(‘session_3rd‘, res.data);//存token } } }) }
后端PHP代码
function login(){ $code = input(‘code‘);//登陆凭证 $encryptedData = input(‘encryptedData‘);// $iv = input(‘iv‘);// $rawData = input(‘rawData‘);// $signature = input(‘signature‘);// $appid = input(‘appid‘); //第三方token,换取session_key $comp_token = $this->component->getAccessToken(); $url =‘https://api.weixin.qq.com/sns/component/jscode2session?appid=‘.$appid.‘&js_code=‘.$code.‘&grant_type=authorization_code&component_appid=‘.$this->appid.‘&component_access_token=‘.$comp_token; $result = send_get($url); $result = json_decode($result,true); trace($result,‘登陆返回‘); //根据业务需要对数据包进行签名校验,确保数据的完整性。 $signature2 = sha1( $rawData.$result[‘session_key‘]); if ($signature != $signature2){ return [‘msg‘=>‘签名检验失败‘,‘status‘=>0]; } //解密获得用户的完整敏感信息 $pc = new wxappBizDataCrypt($appid, $result[‘session_key‘]); $errCode = $pc->decryptData($encryptedData, $iv, $data ); if ($errCode == 0) { $data = json_decode($data,true); $data[‘appid‘] = $data[‘watermark‘][‘appid‘]; $session_3rd = bin2hex(random_bytes(9)); $data[‘session_3rd‘] = $session_3rd; //检查用户是否存在,进行增加更新操作 $userInfo = new UserInfo(); $users = $userInfo::get([‘openid‘=>$result[‘openid‘]]); if ($users){ $ret = $userInfo->allowField(true)->isUpdate(true)->save($data,[‘openid‘=>$result[‘openid‘]]); }else{ $ret = $userInfo->allowField(true)->isUpdate(false)->save($data); } if ($ret) return $session_3rd; } return 0; } //登陆过期,重新登陆 function reLogin(){ $session = input(‘session‘); $users = $this->user->where([‘session_3rd‘=>$session])->find(); if ($users){ $session_3rd = bin2hex(random_bytes(9)); $ret = $this->user->where(‘id‘,$users[‘id‘])->update([‘session_3rd‘=>$session_3rd]);//更新3rd return $session_3rd; }else{ return 0; } }