Merge branch 'master' of https://github.com/php-casbin/laravel-authz into feature-use-gates-1.0

Author: Dobmod

README.md

@@ -279,14 +279,17 @@ Route::group(['middleware' => ['http_request']], function () {
 
 ### Using Gates
 
-You can use Laravel Gates to check if a user has a permission, provided that you have set an existing user instance as the currently authenticated user using `Auth::login`. See [Gates](https://laravel.com/docs/11.x/authorization#gates) for more details.
+You can use Laravel Gates to check if a user has a permission, provided that you have set an existing user instance as the currently authenticated user.
 
 ```php
-if(Gate::allows('enforcer', ['articles', 'read'])) {
-    // The user can read articles
-};
+$user->can('articles,read');
+// For multiple enforcers
+$user->can('articles,read', 'second');
+// The methods cant, cannot, canAny, etc. also work
 ```
 
+If you require custom Laravel Gates, you can disable the automatic registration by setting `enabled_register_at_gates` to `false` in the lauthz file. After that, you can use `Gates::before` or `Gates::after` in your ServiceProvider to register custom Gates. See [Gates](https://laravel.com/docs/11.x/authorization#gates) for more details.
+
 ### Multiple enforcers
 
 If you need multiple permission controls in your project, you can configure multiple enforcers.

config/lauthz.php

@@ -6,6 +6,14 @@
      */
     'default' => 'basic',
 
+    /*
+     * Lauthz Localizer
+     */
+    'localizer' => [
+        // changes whether enforcer will register at gates.
+        'enabled_register_at_gates' => true
+    ],
+
     'basic' => [
         /*
         * Casbin model setting.

src/EnforcerLocalizer.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace Lauthz;
+
+use Illuminate\Contracts\Auth\Access\Authorizable;
+use Illuminate\Contracts\Auth\Access\Gate;
+use Lauthz\Facades\Enforcer;
+
+class EnforcerLocalizer
+{
+    /**
+     * The application instance.
+     *
+     * @var \Illuminate\Foundation\Application
+     */
+    protected $app;
+
+    /**
+     * Create a new localizer instance.
+     *
+     * @param \Illuminate\Foundation\Application $app
+     */
+    public function __construct($app)
+    {
+        $this->app = $app;
+    }
+
+    /**
+     * Register the localizer based on the configuration.
+     */
+    public function register()
+    {
+        if ($this->app->config->get('lauthz.localizer.enabled_register_at_gates')) {
+            $this->registerAtGate();
+        }
+    }
+
+    /**
+     * Register the localizer at the gate.
+     */
+    protected function registerAtGate()
+    {
+        $this->app->make(Gate::class)->before(function (Authorizable $user, string $ability, array $guards) {
+            /** @var \Illuminate\Contracts\Auth\Authenticatable $user */
+            $identifier = $user->getAuthIdentifier();
+            if (method_exists($user, 'getAuthzIdentifier')) {
+                /** @var \Lauthz\Tests\Models\User $user */
+                $identifier = $user->getAuthzIdentifier();
+            }
+            $identifier = strval($identifier);
+            $ability = explode(',', $ability);
+            if (empty($guards)) {
+                return Enforcer::enforce($identifier, ...$ability);
+            }
+
+            foreach ($guards as $guard) {
+                return Enforcer::guard($guard)->enforce($identifier, ...$ability);
+            }
+        });
+    }
+}

src/EnforcerManager.php

@@ -7,10 +7,10 @@
 use Casbin\Model\Model;
 use Casbin\Log\Log;
 use Lauthz\Contracts\Factory;
-use Lauthz\Contracts\ModelLoader;
 use Lauthz\Models\Rule;
 use Illuminate\Support\Arr;
 use InvalidArgumentException;
+use Lauthz\Loaders\ModelLoaderManager;
 
 /**
  * @mixin \Casbin\Enforcer
@@ -87,7 +87,8 @@ protected function resolve($name)
         }
 
         $model = new Model();
-        $loader = $this->app->make(ModelLoader::class, $config);
+        $loader = $this->app->make(ModelLoaderManager::class);
+        $loader->initFromConfig($config);
         $loader->loadModel($model);
 
         $adapter = Arr::get($config, 'adapter');

src/LauthzServiceProvider.php

@@ -2,11 +2,9 @@
 
 namespace Lauthz;
 
-use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\ServiceProvider;
-use Lauthz\Contracts\ModelLoader;
-use Lauthz\Facades\Enforcer;
-use Lauthz\Loaders\ModelLoaderFactory;
+use Lauthz\EnforcerLocalizer;
+use Lauthz\Loaders\ModelLoaderManager;
 use Lauthz\Models\Rule;
 use Lauthz\Observers\RuleObserver;
 
@@ -34,6 +32,8 @@ public function boot()
         $this->mergeConfigFrom(__DIR__ . '/../config/lauthz.php', 'lauthz');
 
         $this->bootObserver();
+
+        $this->registerLocalizer();
     }
 
     /**
@@ -55,28 +55,22 @@ public function register()
             return new EnforcerManager($app);
         });
 
-        $this->app->bind(ModelLoader::class, function($app, $config) {
-            return ModelLoaderFactory::createFromConfig($config);
+        $this->app->singleton(ModelLoaderManager::class, function ($app) {
+            return new ModelLoaderManager($app);
         });
 
-        $this->registerGates();
+        $this->app->singleton(EnforcerLocalizer::class, function ($app) {
+            return new EnforcerLocalizer($app);
+        });
     }
 
     /**
      * Register a gate that allows users to use Laravel's built-in Gate to call Enforcer.
      *
      * @return void
      */
-    protected function registerGates()
+    protected function registerLocalizer()
     {
-        Gate::define('enforcer', function ($user, ...$args) {
-            $identifier = $user->getAuthIdentifier();
-            if (method_exists($user, 'getAuthzIdentifier')) {
-                $identifier = $user->getAuthzIdentifier();
-            }
-            $identifier = strval($identifier);
-
-            return Enforcer::enforce($identifier, ...$args);
-        });
+        $this->app->make(EnforcerLocalizer::class)->register();
     }
 }

src/Loaders/ModelLoaderFactory.php

@@ -0,0 +1,108 @@
+<?php
+
+namespace Lauthz\Loaders;
+
+use Illuminate\Support\Arr;
+use Illuminate\Support\Str;
+use Illuminate\Support\Manager;
+use InvalidArgumentException;
+
+/**
+ * The model loader manager.
+ *
+ * A model loader is responsible for a loading model from an arbitrary source.
+ * Developers can customize loading behavior by implementing
+ * and register the custom loader in AppServiceProvider through `app(LoaderManager::class)->extend()`.
+ *
+ * Built-in loader implementations include:
+ *  - FileLoader: For loading model from file.
+ *  - TextLoader: Suitable for model defined as a multi-line string.
+ *  - UrlLoader: Handles model loading from URL.
+ *
+ *  To utilize a built-in or custom loader, set 'model.config_type' in the configuration to match one of the above types.
+ */
+class ModelLoaderManager extends Manager
+{
+
+    /**
+     * The array of the lauthz driver configuration.
+     * 
+     * @var array
+     */
+    protected $config;
+
+    /**
+     * Initialize configuration for the loader manager instance.
+     *
+     * @param array $config the lauthz driver configuration.
+     */
+    public function initFromConfig(array $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * Get the default driver from the configuration.
+     *
+     * @return string The default driver name.
+     */
+    public function getDefaultDriver()
+    {
+        return Arr::get($this->config, 'model.config_type', '');
+    }
+
+    /**
+     * Create a new TextLoader instance.
+     *
+     * @return TextLoader
+     */
+    public function createTextDriver()
+    {
+        return new TextLoader($this->config);
+    }
+
+    /**
+     * Create a new UrlLoader instance.
+     *
+     * @return UrlLoader
+     */
+    public function createUrlDriver()
+    {
+        return new UrlLoader($this->config);
+    }
+
+    /**
+     * Create a new FileLoader instance.
+     *
+     * @return FileLoader
+     */
+    public function createFileDriver()
+    {
+        return new FileLoader($this->config);
+    }
+
+    /**
+     * Create a new driver instance.
+     *
+     * @param  string  $driver
+     * @return mixed
+     *
+     * @throws \InvalidArgumentException
+     */
+    protected function createDriver($driver)
+    {
+        if(empty($driver)) {
+            throw new InvalidArgumentException('Unsupported empty model loader type.');
+        }
+
+        if (isset($this->customCreators[$driver])) {
+            return $this->callCustomCreator($driver);
+        }
+        $method = 'create' . Str::studly($driver) . 'Driver';
+        if (method_exists($this, $method)) {
+            return $this->$method();
+        }
+
+        throw new InvalidArgumentException("Unsupported model loader type: {$driver}.");
+    }
+}

src/Loaders/ModelLoaderManager.php

@@ -31,6 +31,7 @@ public function handle($request, Closure $next, ...$args)
         $user = Auth::user();
         $identifier = $user->getAuthIdentifier();
         if (method_exists($user, 'getAuthzIdentifier')) {
+            /** @var \Lauthz\Tests\Models\User $user */
             $identifier = $user->getAuthzIdentifier();
         }
         $identifier = strval($identifier);

src/Middlewares/EnforcerMiddleware.php

@@ -2,10 +2,10 @@
 
 namespace Lauthz\Tests;
 
-use Enforcer;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
 use Casbin\Persist\Adapters\Filter;
 use Casbin\Exceptions\InvalidFilterTypeException;
+use Lauthz\Facades\Enforcer;
 
 class DatabaseAdapterTest extends TestCase
 {
@@ -309,7 +309,7 @@ public function testLoadFilteredPolicy()
         $this->assertEquals([
             ['bob', 'data2', 'write']
         ], Enforcer::getPolicy());
-        
+
         // Filter
         $filter = new Filter(['v2'], ['read']);
         Enforcer::loadFilteredPolicy($filter);