Laravel的Auth验证Token验证使用自定义Redis的例子
2019-09-30 10:48
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背景
项目用户量逐渐增大,接口调用次数越来越多,所以决定使用Redis存token,缓解数据库压力
调研
在config/auth.php文件中发现用户的驱动使用的是EloquentUserProvider服务提供器,然后查找EloquentUserProvider.php 然后发现在vendor/laravel/framework/src/Illuminate/Auth文件下存在该文件
<?php namespace Illuminate\Auth; use Illuminate\Support\Str; use Illuminate\Contracts\Auth\UserProvider; use Illuminate\Contracts\Hashing\Hasher as HasherContract; use Illuminate\Contracts\Auth\Authenticatable as UserContract; class EloquentUserProvider implements UserProvider { /** * The hasher implementation. * * @var \Illuminate\Contracts\Hashing\Hasher */ protected $hasher; /** * The Eloquent user model. * * @var string */ protected $model; /** * Create a new database user provider. * * @param \Illuminate\Contracts\Hashing\Hasher $hasher * @param string $model * @return void */ public function __construct(HasherContract $hasher, $model) { $this->model = $model; $this->hasher = $hasher; } /** * Retrieve a user by their unique identifier. * * @param mixed $identifier * @return \Illuminate\Contracts\Auth\Authenticatable|null */ public function retrieveById($identifier) { return $this->createModel()->newQuery()->find($identifier); } ... /** * Retrieve a user by the given credentials. * * @param array $credentials * @return \Illuminate\Contracts\Auth\Authenticatable|null */ public function retrieveByCredentials(array $credentials) { if (empty($credentials)) { return; } // First we will add each credential element to the query as a where clause. // Then we can execute the query and, if we found a user, return it in a // Eloquent User "model" that will be utilized by the Guard instances. $query = $this->createModel()->newQuery(); foreach ($credentials as $key => $value) { if (! Str::contains($key, 'password')) { $query->where($key, $value); } } return $query->first(); } ... }
实现代码
因为我们是需要在当前的Auth验证基础之上添加一层Redis缓存,所以最简单的办法继承EloquentUserProvider类,重写
retrieveByCredentials方法所以我们新建RedisUserProvider.php文件
<?php namespace App\Providers; use Illuminate\Auth\EloquentUserProvider; use Cache; class RedisUserProvider extends EloquentUserProvider { public function __construct($hasher, $model) { parent::__construct($hasher, $model); } /** * Retrieve a user by the given credentials. * * @param array $credentials * @return \Illuminate\Contracts\Auth\Authenticatable|null */ public function retrieveByCredentials(array $credentials) { if (!isset($credentials['token'])) { return; } $token = $credentials['token']; $redis = Cache::getRedis(); $userId = $redis->get($token); return $this->retrieveById($userId); } }
然后在AuthServiceProvider.php文件下修改如下代码
public function boot(GateContract $gate) { $this->registerPolicies($gate); //将redis注入Auth中 Auth::provider('redis',function($app, $config){ return new RedisUserProvider($app['hash'], $config['model']); }); }
修改config/auth.php用户的auth的驱动为redis。
后续
改完代码以后发现无法正常登录,一直提示用户或密码错误。。。然后看看了下用户认证方法是
auth('web')->once($credentials);然后看是在
Illuminate\Auth\SessionGuard文件中用到了RedisUserProvider文件中retrieveByCredentials方法中对用户进行密码验证,
于是修改RedisUserProvider文件
<?php namespace App\Providers; use Illuminate\Auth\EloquentUserProvider; use Illuminate\Support\Str; use Illuminate\Contracts\Auth\Authenticatable as UserContract; use Cache; class RedisUserProvider extends EloquentUserProvider { public function __construct($hasher, $model) { parent::__construct($hasher, $model); } /** * Retrieve a user by the given credentials. * * @param array $credentials * @return \Illuminate\Contracts\Auth\Authenticatable|null */ public function retrieveByCredentials(array $credentials) { if (empty($credentials)) { return; } if(isset($credentials['phone']) && isset($credentials['password'])){ // First we will add each credential element to the query as a where clause. // Then we can execute the query and, if we found a user, return it in a // Eloquent User "model" that will be utilized by the Guard instances. $query = $this->createModel()->newQuery(); foreach ($credentials as $key => $value) { if (! Str::contains($key, 'password')) { $query->where($key, $value); } } return $query->first(); } $token = $credentials['token']; $redis = Cache::getRedis(); $userId = $redis->get($token); return $this->retrieveById($userId); } }
然后登录成功啦!皆大欢喜!
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