Introducing thinkphp5.1 easywechat4 WeChat third-party open platform

Requirement description

1. The current mall (uid identification) authorizes the third-party development platform.
2. Web page authorization successful Then jump to another mall project link and bring the current WeChat user information and WeChat initialization verification signature.

Third-party platform authorization

Install easywechat4

$ composer require overtrue/wechat:~4.0 -vvv

Quote

use EasyWeChat\Factory;

Create a jump to WeChat scan QR code authorization page

/**
 * 开发平台授权跳转
 *
 * @return void
 */
public function accessView(){
    // 
    $uid = Request()->route('uid' , 0);
    $url = 'http://qgcloud.capsui.com/public/index/wxopen/config?uid=' . $uid;
    $this->assign('url' , $url);
    return $this->fetch();
}

Jump method (why don’t I write the previous method? Because WeChat requires the same An address)

/**
 * 开发平台跳转授权扫码页
 *
 * @return void
 */
public function config(){
    $uid = Request()->get('uid' , 0);
    $config = [
        'app_id'   => '开放平台第三方平台 APPID',
        'secret'   => '开放平台第三方平台 Secret',
        'token'    => '开放平台第三方平台 Token',
        'aes_key'  => '开放平台第三方平台 AES Key'
    ];
    $openPlatform = Factory::openPlatform($config);
    
    $url = $openPlatform->getPreAuthorizationUrl('http://qgcloud.capsui.com/public/index/wxopen/wxcallback?uid=' . $uid);

    $this->redirect($url);
}

Authorization callback (note: the first callback after scanning the code to confirm authorization will not take the uid parameter,)

引入 
use EasyWeChat\OpenPlatform\Server\Guard;

/**
 * 开发平台授权回调
 *
 * @return void
 */
public function wxcallback(){
    // 这个表是记录授权成功的
    //$Wxpublic   = new Wxpublic;
    // 这个表是记录授权成功后传过来所属uid商城绑定appid
    //$ShopConfig = new ShopConfig;

    $get = Request()->param();
    
    $config = [
        'app_id'   => '开放平台第三方平台 APPID',
        'secret'   => '开放平台第三方平台 Secret',
        'token'    => '开放平台第三方平台 Token',
        'aes_key'  => '开放平台第三方平台 AES Key'
    ];
    $openPlatform = Factory::openPlatform($config);
    $server       = $openPlatform->server;

    
    // 处理授权成功事件-第一次回调
    // 闭包方法!里面调用外面的方法请在use里面填写
    $server->push(function ($message) use ($openPlatform /*, $Wxpublic*/) {
        
        $authCode = $message['AuthorizationCode'];
        $res      = $openPlatform->handleAuthorize($authCode);

        if($res['authorization_info']['authorizer_refresh_token']){
            //授权成功记录到数据库
            //$Wxpublic->insert(['appid' => $res['authorization_info']['authorizer_appid'] , 'createtime' => time()]);
        }

    }, Guard::EVENT_AUTHORIZED);

    // 处理授权取消事件-第一次回调
    // 闭包方法!里面调用外面的方法请在use里面填写
    $server->push(function ($message) use(/*$Wxpublic , $ShopConfig*/) {
        //处理数据库逻辑
        //$Wxpublic::appid($message['AppId'])->delete();
        //$ShopConfig::appid($message['AppId'])->update(['token' => '']);
    }, Guard::EVENT_UNAUTHORIZED);
    
    // 第二次回调会带一个授权code和自定义参数商城id(uid)
    if(isset($get['auth_code']) && isset($get['uid'])){
        
        $res      = $openPlatform->handleAuthorize($get['auth_code']);
        $appid    = $res['authorization_info']['authorizer_appid'];
        //数据库逻辑
        //$isConfig = $Wxpublic::appid($appid)->count();
        
        //if($isConfig){
        //$add = $ShopConfig->where('uid' , $get['uid'])->update(['token' => $appid]);
        //}
    }

    return $server->serve();
}

Third-party platform web page authorization & WeChat JSSDK initialization signature generation

/**
 * 网页授权调起
 *
 * @return void
 */
public function htmlAccess(){
    $appid = Request()->get('appid' , 0);
    
    $config = [
        'app_id'   => '开放平台第三方平台 APPID',
        'secret'   => '开放平台第三方平台 Secret',
        'token'    => '开放平台第三方平台 Token',
        'aes_key'  => '开放平台第三方平台 AES Key'
    ];
    $openPlatform = Factory::openPlatform($config);
    $data         = $openPlatform->getAuthorizer($appid);
    $appid        = $data['authorization_info']['authorizer_appid'];
    $refreshToken = $data['authorization_info']['authorizer_refresh_token'];

    $officialAccount = $openPlatform->officialAccount($appid , $refreshToken);
    $oauth           = $officialAccount->oauth;
    
    // 回调授权地址
    $url      = "http://qgcloud.capsui.com/public/index/wxopen/callbackOpenid";
    $response = $officialAccount->oauth->scopes(['snsapi_userinfo'])->redirect($url)->send();

}

Web page authorization callback method

/**
 * 网页授权回调
 *
 * @return void
 */
public function callbackOpenid(){
    $appid = Request()->get('appid' , null);
    
    $config = [
        'app_id'   => '开放平台第三方平台 APPID',
        'secret'   => '开放平台第三方平台 Secret',
        'token'    => '开放平台第三方平台 Token',
        'aes_key'  => '开放平台第三方平台 AES Key'
    ];
    $openPlatform = Factory::openPlatform($config);
    $data         = $openPlatform->getAuthorizer($appid);
    
    $appid        = $data['authorization_info']['authorizer_appid'];
    $refreshToken = $data['authorization_info']['authorizer_refresh_token'];
    
    // 获取微信用户信息 如openid nickname等信息
    $officialAccount = $openPlatform->officialAccount($appid , $refreshToken);
    $oauth           = $officialAccount->oauth;
    $user            = $oauth->user();
    
    // 处理wxconfig初始化JSSDK
    $officialAccount->jssdk->setUrl('http://quguoshop.capsui.com/');
    $wxconfig = $officialAccount->jssdk->buildConfig(['chooseWXPay'], $debug = true, $beta = false, $json = true);

    $ShopConfig = new ShopConfig;
    $shopInfo   = $ShopConfig::appid($appid)->find();
    
    // 注意 这里我是带参数跳转到其他TP5项目里面再用缓存处理一下
    $url = 'http://quguoshop.capsui.com/public/wxoauthCallback?data=' . json_encode($user->toArray()) . '&token=' . $shopInfo['id'] . '&wxconfig=' . $wxconfig;
    $this->redirect($url);
}