Laravel的Auth验证Token验证使用自定义Redis的例子

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

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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