mashangyoujiu/Application/Common/Business/AuthMerchant.class.php

<?php

namespace Common\Business;
//[1.6.9]
use Think\Jssdk;
use Think\Jssdks;

class AuthMerchant
{
    /**
     * 授权给商户公众号
     * @param $param
     * [
     * merchant_id
     * code
     * ]
     * @return mixed
     */
    Public function auth($param)
    {
        //定义全局门店id
        if (empty($param['merchant_id'])) {
            return callBack(statusCode()['error'], "非法访问");
        }
        $setResult = $this->checkSet($param);
        if ($setResult['status'] != 1) {
            return $setResult;
        }
        $set = $setResult['data'];    //商户的公众号配置
        if (strpos($_SERVER["HTTP_USER_AGENT"], "MicroMessenger")) {
            switch ($set['type']) {
                case 1:
                    //商户自定义配置的公众号
                    //判断code是否存在
                    if (!empty($param['code'])) {
                        if ($param['code'] != 'authdeny') {
                            //用户授权
                            $options['appid'] = $set['appid'];
                            $options['appsecret'] = $set['appsercet'];
                            $wx = new \Util\Wx\Wechat($options);
                            $wx_call = $wx->getOauthAccessToken($param['code']);//获取access_token和openid
                            if (!$wx_call) {
                                return callBack(statusCode()['error'], "授权失败");
                            }else{
                                return callBack(statusCode()['success'], "获取成功", $wx_call['openid']);
                            }
                        } else {
                            return callBack(statusCode()['error'], "请授权");
                        }
                    } else {
                        $this->getCode([
                            'appid' => $set['appid'],
                            'appsecret' => $set['appsercet'],
                            'type' => 1
                        ]);
                    }
                    break;
                case 2:
                    //商户授权的公众号
                    $options = [
                       'appid'=>$set['authorizer_appid']
                    ];
                    $appinfo = M('appweixin')->where(['id' => 1])->find();
                    //判断code是否存在
                    if (!empty($param['code'])) {
                        if ($param['code'] != 'authdeny') {
                            //用户授权
                            $wx = new \Util\Wx\Wechat($options);
                            $token = get_acc_token();
                            $wx_call = $wx->getOauthAccessTokens($param['code'], $appinfo['appid'], $token);//获取access_token和openid
                            if (!$wx_call) {
                                return callBack(statusCode()['error'], "获取失败");
                            }else{
                                return callBack(statusCode()['success'], "获取成功", $wx_call['openid']);
                            }
                        } else {
                            return callBack(statusCode()['error'], "请授权");
                        }
                    } else {
                        $this->getCode([
                            'appid' => $options['appid'],
                            'third_appid' => $appinfo['appid'],
                            'type' => 2
                        ]);
                    }
                    break;
                default:
                    return callBack(statusCode()['error'], "微信配置参数有误");
                    break;
            }
        } else {
            return callBack(statusCode()['error'], "请使用微信浏览器访问本应用！");
        }
    }


    /**
     * 获取code
     * @param $param
     * [
     * type 1 自定义公众号  2 授权的公众号
     * appid  公众号app_id
     * appsecret 公众号 secret
     * third_appid 第三方appid
     * ]
     * @return mixed
     */
    public function getCode($param)
    {
        $options['appid'] = $param['appid'];
        if ($param['type'] == 1) {
            $options['appsecret'] = $param['appsecret'];
        }
        if ($_SERVER["HTTPS"] == "on") {
            $title = 'https';
        } else {
            $title = 'http';
        }
        $url = $title . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $wx = new \Util\Wx\Wechat($options);
        if ($param['type'] == 1) {
            $_url = $wx->getOauthRedirect($url, '1', 'snsapi_userinfo');
        } else {
            $_url = $wx->getOauthRedirects($url, '1', 'snsapi_userinfo', $param['third_appid']);
        }
        header("Location:" . $_url);
        exit;
    }


    /**
     * 设置全局变量  全局缓存SET
     * @param $param
     * @return mixed
     */
    public function checkSet($param)
    {
        $set = M('wxconfig')->where(['merchantid' => $param['merchant_id']])->find();
        if (!empty($set)) {
            return callBack(statusCode()['success'], "系统全局设置已定义", $set);
        } else {
            return callBack(statusCode()['error'], "系统全局设置未定义");
        }
    }

}