uni-app 小程式 Laravel+jwt 權限認證系列

import Request from './request';import jwt from '@/utils/auth/jwt.js'; // jwt 管理 见下文const http = new Request();const baseUrl = 'http://xxx'; // api 地址var platform = ''; // 登陆时需知道来自哪个平台的小程序用户// #ifdef MP-BAIDUplatform = 'MP-BAIDU';// #endif/* 设置全局配置 */http.setConfig((config) => { 
  config.baseUrl = baseUrl; //设置 api 地址
  config.header = {
    ...config.header  }
  return config})/* 请求之前拦截器 */http.interceptor.request((config, cancel) => {
    if (!platform) {cancel('缺少平台参数');}
    config.header = {
        ...config.header,
        platform:platform    } 
  if (config.custom.auth) {
      // 需要权限认证的路由 需携带自定义参数 {custom: {auth: true}}
    config.header.Authorization = jwt.getAccessToken();
  }
  return config})http.interceptor.response(async (response) => { /* 请求之后拦截器 */
    console.log(response);
    // 如果是需要权限认证的路由
    if(response.config.custom.auth){

            if(response.data.code == 4011){
                // 刷新 token
                jwt.setAccessToken(response.data.data.access_token);
                // 携带新 token 重新请求
                let repeatRes = await http.request(response.config);
                if ( repeatRes ) {
                    response = repeatRes;
                }
            }

    }
    return response}, (response) => { // 请求错误做点什么
    if(response.statusCode == 401){
        getApp().globalData.isLogin = false;
        uni.showToast({icon:'none',duration:2000,title: "请登录"})
    }else if(response.statusCode == 403){
        uni.showToast({
            title: "您没有权限进行此项操作，请联系客服。",
            icon: "none"
        });
    }
  return response})export {
  http}

import Vue from 'vue'import App from './App'import { http } from '@/utils/luch/index.js' //这里Vue.prototype.$http = http

Vue.config.productionTip = falseApp.mpType = 'app'const app = new Vue({
    ...App})app.$mount()

// 登陆
    public function login(Request $request)
    {
        $platform = $request->header('platform');
        if(!$platform || !in_array($platform,User::$platforms)){
            return Y::json(1001, '不支持的平台类型');
        }
        $post = $request->only(['encryptedData', 'iv', 'code']);
        $validator = Validator::make($post, [
            'encryptedData' => 'required',
            'iv'            => 'required',
            'code'          => 'required'
        ]);
        if ($validator->fails()) {return Y::json(1002,'非法请求');}
        switch ($platform) {
            case 'MP-BAIDU':
                $decryption = (new BdDataDecrypt())->decrypt($post['encryptedData'],$post['iv'],$post['code']);
                break;
            default:
                $decryption = false;
                break;
        }
        // var_dump($decryption);
        if($decryption !== false){
            $user = User::where('u_platform',$platform)->where('u_mobile',$decryption['mobile'])->first();
            if($user){
                $user->u_login_time = date('Y-m-d H:i:s',time());
                $user->save();
            }else{
                $user = User::create([
                    'u_username'=> substr_replace($decryption['mobile'],'******',3,6),
                    'u_nickname'=> User::crateNickName(),
                    'u_platform'=> $platform,
                    'u_mobile'   => $decryption['mobile'],
                    'u_openid'  => $decryption['openid'],
                    'u_regtime' => date('Y-m-d H:i:s',time())
                ]);
            }

            $token = auth()->login($user);
            return Y::json(
                array_merge(
                    $this->respondWithToken($token),
                    ['user'=>['nickName'=>$user->u_nickname]]
                )
            );
        }
        return Y::json(1003,'登录失败'); 
    }
    // 返回 token
    protected function respondWithToken($token)
    {
        return ['access_token' => $token];
    }

<?phpnamespace  App\Library;use App\Library\Y;class BdDataDecrypt{

    private $_appid;
    private $_app_key;
    private $_secret;
    private $_session_key;

    public function __construct()
    {
        $this->_appid       = env('BD_APPID');
        $this->_app_key     = env('BAIDU_KEY');
        $this->_secret      = env('BD_SECRET');
    }

    public function decrypt($encryptedData, $iv, $code){
        $res = $this->getSessionKey($code);
        if($res === false){return false;}
        $data['openid'] = $res['openid'];
        $res = $this->handle($encryptedData,$iv,$this->_app_key,$res['session_key']);
        if($res === false){return false;}
        $res = json_decode($res,true);
        $data['mobile'] = $res['mobile'];
        return $data;

    }

    public function getSessionKey($code)
    {
        $params['code']         = $code;
        $params['client_id']     = $this->_app_key;
        $params['sk']             = $this->_secret;
        $res = Y::curl("https://spapi.baidu.com/oauth/jscode2sessionkey",$params,0,1);
        // var_dump($res);
        /**
         * 错误返回
         * array(3) {
            ["errno"]=>
            int(1104)
            ["error"]=>
            string(33) "invalid code , expired or revoked"
            ["error_description"]=>
            string(33) "invalid code , expired or revoked"
            }
            成功返回：
            array(2) {
                ["openid"]=>
                string(26) "z45QjEfvkUJFwYlVcpjwST5G8w"
                ["session_key"]=>
                string(32) "51b9297ababbcf43c1a099256bf82d75"
            }
         */
        if( isset($res['error']) ){
            return false;
        }
        return $res;
    }

    /**
     * 官方 demo
     * return string(24) "{"mobile":"18288881111"}" or false
     */
    private function handle($ciphertext, $iv, $app_key, $session_key)
    {
        $session_key = base64_decode($session_key);
        $iv = base64_decode($iv);
        $ciphertext = base64_decode($ciphertext);

        $plaintext = false;
        if (function_exists("openssl_decrypt")) {
            $plaintext = openssl_decrypt($ciphertext, "AES-192-CBC", $session_key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, $iv);
        } else {
            $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, null, MCRYPT_MODE_CBC, null);
            mcrypt_generic_init($td, $session_key, $iv);
            $plaintext = mdecrypt_generic($td, $ciphertext);
            mcrypt_generic_deinit($td);
            mcrypt_module_close($td);
        }
        if ($plaintext == false) {
            return false;
        }
        // trim pkcs#7 padding
        $pad = ord(substr($plaintext, -1));
        $pad = ($pad  32) ? 0 : $pad;
        $plaintext = substr($plaintext, 0, strlen($plaintext) - $pad);
        $plaintext = substr($plaintext, 16);
        $unpack = unpack("Nlen/", substr($plaintext, 0, 4));
        $content = substr($plaintext, 4, $unpack['len']);
        $app_key_decode = substr($plaintext, $unpack['len'] + 4);
        return $app_key == $app_key_decode ? $content : false;
    }}

import jwt from '@/utils/auth/jwt.js';Vue.prototype.checkLogin = function(){
    var TOKEN  = jwt.getAccessToken();
    return new Promise((resolve, reject) => {
        if(TOKEN){
            http.get('/v1/auth/check',{custom: {auth: true}}).then(res=>{
                // 通过中间件 一定是登陆态
                resolve(true);
            }).catch(err=>{
                resolve(false);
                console.log(err) // 这里是401 403 后端500错误或者网络不好
            })
        }else{
            resolve(false) //没有token 一定是未登陆
        }
    })}

<script>
    export default {
        data() {
            return {
                isLogin:null
            }
        },
        onLoad() {
            this.checkLogin().then(loginStatus=>{
                this.isLogin = loginStatus;
            });
        },
        methods: {
        },
        components: {}
    }</script>