BREAKING CHANGE: upgrade to PHP 8.0 and PHP-Casbin 4.0 (#75)

* feat: Integrate Laravel's built-in authorization Gates

- Integrate Laravel's built-in authorization Gates (#70)
- Added guidance for Gates in README.md

* docs: fix CI badge and update TOC in README.md

.github/workflows/build.yml

@@ -27,73 +27,7 @@ jobs:
         #        laravel: [ ]
         #        stability: [ prefer-lowest, prefer-stable ]
         include:
-          # Laravel 5.5
-          - php: 7.1
-            laravel: 5.5.*
-            phpunit: ~6.0
-          - php: 7.2
-            laravel: 5.5.*
-            phpunit: ~6.0
-          - php: 7.3
-            laravel: 5.5.*
-            phpunit: ~6.0
-
-          # Laravel 5.6
-          - php: 7.1
-            laravel: 5.6.*
-            phpunit: ~7.0
-          - php: 7.2
-            laravel: 5.6.*
-            phpunit: ~7.0
-          - php: 7.3
-            laravel: 5.6.*
-            phpunit: ~7.0
-
-          # Laravel 5.7
-          - php: 7.1
-            laravel: 5.7.*
-            phpunit: ~7.5
-          - php: 7.2
-            laravel: 5.7.*
-            phpunit: ~7.5
-          - php: 7.3
-            laravel: 5.7.*
-            phpunit: ~7.5
-
-          # Laravel 5.8
-          - php: 7.1
-            laravel: 5.8.*
-            phpunit: ~7.5
-          - php: 7.2
-            laravel: 5.8.*
-            phpunit: ~8.0
-          - php: 7.3
-            laravel: 5.8.*
-            phpunit: ~8.0
-
-          # Laravel 6.x
-          - php: 7.2
-            laravel: 6.*
-            phpunit: ~8.0
-          - php: 7.3
-            laravel: 6.*
-            phpunit: ~8.0
-
-          # Laravel 7.x
-          - php: 7.3
-            laravel: 7.*
-            phpunit: ~9.0
-          - php: 7.4
-            laravel: 7.*
-            phpunit: ~9.0
-
           # Laravel 8.x
-          - php: 7.3
-            laravel: 8.*
-            phpunit: ~9.0
-          - php: 7.4
-            laravel: 8.*
-            phpunit: ~9.0
           - php: 8.0
             laravel: 8.*
             phpunit: ~9.0
@@ -101,7 +35,18 @@ jobs:
           - php: 8.0
             laravel: 9.*
             phpunit: ~9.0
-
+          # Laravel 10.x
+          - php: 8.1
+            laravel: 10.*
+            phpunit: ~9.0
+          # Laravel 11.x
+          - php: 8.2
+            laravel: 11.*
+            phpunit: ~10.5
+          - php: 8.3
+            laravel: 11.*
+            phpunit: ~10.5
+            
     name: Laravel${{ matrix.laravel }}-PHP${{ matrix.php }}
 
     steps:
@@ -126,8 +71,13 @@ jobs:
           composer install --prefer-dist --no-progress --no-suggest
 
       - name: Run test suite
+        if: matrix.laravel != '11.*'
         run: ./vendor/bin/phpunit -v
 
+      - name: Run test suite laravel 11
+        if: matrix.laravel == '11.*'
+        run: ./vendor/bin/phpunit -c phpunit.10.xml
+
       - name: Run Coveralls
         env:
           COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -152,9 +102,9 @@ jobs:
     needs: [ test, upload-coverage ]
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: '14.17'
+          node-version: 'lts/*'
 
       - name: Run semantic-release
         env:

README.md

@@ -8,7 +8,7 @@
 
 <p align="center">
     <a href="https://github.com/php-casbin/laravel-authz/actions">
-        <img src="https://github.com/php-casbin/laravel-authz/workflows/build/badge.svg?branch=master" alt="Build Status">
+        <img src="https://github.com/php-casbin/laravel-authz/actions/workflows/build.yml/badge.svg?branch=master" alt="Build Status">
     </a>
     <a href="https://coveralls.io/github/php-casbin/laravel-authz">
         <img src="https://coveralls.io/repos/github/php-casbin/laravel-authz/badge.svg" alt="Coverage Status">
@@ -35,6 +35,7 @@ All you need to learn to use `Casbin` first.
   * [Using a middleware](#using-a-middleware)
     * [basic Enforcer Middleware](#basic-enforcer-middleware)
     * [HTTP Request Middleware ( RESTful is also supported )](#http-request-middleware--restful-is-also-supported-)
+  * [Using Gates](#using-gates)
   * [Multiple enforcers](#multiple-enforcers)
   * [Using artisan commands](#using-artisan-commands)
   * [Cache](#using-cache)
@@ -105,7 +106,7 @@ use Enforcer;
 Enforcer::addPermissionForUser('eve', 'articles', 'read');
 // adds a role for a user.
 Enforcer::addRoleForUser('eve', 'writer');
-// adds permissions to a rule
+// adds permissions to a role
 Enforcer::addPolicy('writer', 'articles','edit');
 
 ```
@@ -222,7 +223,7 @@ Determines whether a user has a permission.
 Enforcer::hasPermissionForUser('eve', 'articles', 'read');  // true or false
 ```
 
-See [Casbin API](https://casbin.org/docs/en/management-api) for more APIs.
+See [Casbin API](https://casbin.org/docs/management-api#reference) for more APIs.
 
 ### Using a middleware
 
@@ -277,6 +278,19 @@ 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.
+
+```php
+$user->can('articles,read');
+// For multiple enforcers
+$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.
@@ -335,6 +349,8 @@ Adds a role for a user:
 
 ```bash
 php artisan role:assign eve writer
+# Specify the ptype of the role assignment by using the --ptype option.
+php artisan role:assign eve writer --ptype=g2
 ```
 
 ### Using cache

composer.json

@@ -20,18 +20,17 @@
     ],
     "license": "Apache-2.0",
     "require": {
-        "php": ">=7.1.0",
-        "illuminate/support": "~5.5|~6.0|~7.0|~8.0|~9.0",
-        "illuminate/database": "~5.5|~6.0|~7.0|~8.0|~9.0",
-        "illuminate/console": "~5.5|~6.0|~7.0|~8.0|~9.0",
-        "casbin/casbin": "~3.1",
-        "casbin/psr3-bridge": "^1.1"
+        "php": ">=8.0",
+        "illuminate/support": "~8.0|~9.0|~10.0|~11.0",
+        "illuminate/database": "~8.0|~9.0|~10.0|~11.0",
+        "illuminate/console": "~8.0|~9.0|~10.0|~11.0",
+        "casbin/casbin": "~4.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "~7.0|~8.0|~9.0",
-        "php-coveralls/php-coveralls": "^2.4",
+        "phpunit/phpunit": "~9.0|~10.5",
+        "php-coveralls/php-coveralls": "^2.7",
         "mockery/mockery": "^1.0",
-        "laravel/laravel": "~5.5|~6.0|~7.0|~8.0|~9.0"
+        "laravel/laravel": "~9.0|~10.0|~11.0"
     },
     "autoload": {
         "psr-4": {

config/lauthz.php

@@ -6,17 +6,27 @@ return [
      */
     'default' => 'basic',
 
+    /*
+     * Lauthz Localizer
+     */
+    'localizer' => [
+        // changes whether enforcer will register at gates.
+        'enabled_register_at_gates' => true
+    ],
+
     'basic' => [
         /*
         * Casbin model setting.
         */
         'model' => [
-            // Available Settings: "file", "text"
+            // Available Settings: "file", "text", "url"
             'config_type' => 'file',
 
             'config_file_path' => __DIR__ . DIRECTORY_SEPARATOR . 'lauthz-rbac-model.conf',
 
             'config_text' => '',
+
+            'config_url' => ''
         ],
 
         /*

phpunit.10.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+    backupGlobals="false" 
+    bootstrap="vendor/autoload.php" 
+    colors="true" 
+    processIsolation="false" 
+    stopOnFailure="false" 
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd">
+    <testsuites>
+        <testsuite name="Application Test Suite">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <coverage includeUncoveredFiles="true"
+          pathCoverage="false"
+          ignoreDeprecatedCodeUnits="true"
+          disableCodeCoverageIgnore="true">
+        <report>
+            <clover outputFile="build/logs/clover.xml"/>
+            <html outputDirectory="build/html" lowUpperBound="50" highLowerBound="90"/>
+        </report>
+    </coverage>
+
+    <source>
+        <include>
+            <directory>./src</directory>
+        </include>
+    </source>
+
+    <php>
+        <env name="APP_ENV" value="testing"/>
+        <env name="BCRYPT_ROUNDS" value="4"/>
+        <env name="CACHE_DRIVER" value="array"/>
+        <env name="MAIL_DRIVER" value="array"/>
+        <env name="QUEUE_CONNECTION" value="sync"/>
+        <env name="SESSION_DRIVER" value="array"/>
+
+        <env name="DB_DATABASE" value="lauthz"/>
+        <env name="DB_USERNAME" value="root"/>
+    </php>
+</phpunit>

phpunit.xml

@@ -1,36 +1,36 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false">
-    <testsuites>
-        <testsuite name="Application Test Suite">
-            <directory>./tests/</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
-    <logging>
-        <log type="coverage-clover" target="build/logs/clover.xml"/>
-        <log type="coverage-html" target="build/html"/>
-    </logging>
-    <php>
-        <env name="APP_ENV" value="testing"/>
-        <env name="BCRYPT_ROUNDS" value="4"/>
-        <env name="CACHE_DRIVER" value="array"/>
-        <env name="MAIL_DRIVER" value="array"/>
-        <env name="QUEUE_CONNECTION" value="sync"/>
-        <env name="SESSION_DRIVER" value="array"/>
-
-        <env name="DB_DATABASE" value="lauthz"/>
-        <env name="DB_USERNAME" value="root"/>
-    </php>
-</phpunit>
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+    backupGlobals="false" 
+    bootstrap="vendor/autoload.php" 
+    colors="true" 
+    processIsolation="false" 
+    stopOnFailure="false" 
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd">
+    <testsuites>
+        <testsuite name="Application Test Suite">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">./src</directory>
+        </whitelist>
+    </filter>
+
+    <logging>
+        <log type="coverage-clover" target="build/logs/clover.xml"/>
+        <log type="coverage-html" target="build/html"/>
+    </logging>
+
+    <php>
+        <env name="APP_ENV" value="testing"/>
+        <env name="BCRYPT_ROUNDS" value="4"/>
+        <env name="CACHE_DRIVER" value="array"/>
+        <env name="MAIL_DRIVER" value="array"/>
+        <env name="QUEUE_CONNECTION" value="sync"/>
+        <env name="SESSION_DRIVER" value="array"/>
+
+        <env name="DB_DATABASE" value="lauthz"/>
+        <env name="DB_USERNAME" value="root"/>
+    </php>
+</phpunit>

src/Adapters/DatabaseAdapter.php

@@ -186,7 +186,7 @@ class DatabaseAdapter implements DatabaseAdapterContract, BatchDatabaseAdapterCo
      */
     public function removePolicies(string $sec, string $ptype, array $rules): void
     {
-        DB::transaction(function () use ($sec, $rules, $ptype) {
+        $this->eloquent->getConnection()->transaction(function () use ($sec, $rules, $ptype) {
             foreach ($rules as $rule) {
                 $this->removePolicy($sec, $ptype, $rule);
             }
@@ -256,7 +256,11 @@ class DatabaseAdapter implements DatabaseAdapterContract, BatchDatabaseAdapterCo
         foreach($oldRule as $k => $v) {
             $instance->where('v' . $k, $v);
         }
-        $instance->first();
+        $instance = $instance->first();
+        if (!$instance) {
+            return;
+        }
+
         $update = [];
         foreach($newPolicy as $k => $v) {
             $update['v' . $k] = $v;
@@ -276,7 +280,7 @@ class DatabaseAdapter implements DatabaseAdapterContract, BatchDatabaseAdapterCo
      */
     public function updatePolicies(string $sec, string $ptype, array $oldRules, array $newRules): void
     {
-        DB::transaction(function () use ($sec, $ptype, $oldRules, $newRules) {
+        $this->eloquent->getConnection()->transaction(function () use ($sec, $ptype, $oldRules, $newRules) {
             foreach ($oldRules as $i => $oldRule) {
                 $this->updatePolicy($sec, $ptype, $oldRule, $newRules[$i]);
             }
@@ -296,7 +300,7 @@ class DatabaseAdapter implements DatabaseAdapterContract, BatchDatabaseAdapterCo
     public function updateFilteredPolicies(string $sec, string $ptype, array $newPolicies, int $fieldIndex, string ...$fieldValues): array
     {
         $oldRules = [];
-        DB::transaction(function () use ($sec, $ptype, $fieldIndex, $fieldValues, $newPolicies, &$oldRules) {
+        $this->eloquent->getConnection()->transaction(function () use ($sec, $ptype, $fieldIndex, $fieldValues, $newPolicies, &$oldRules) {
             $oldRules = $this->_removeFilteredPolicy($sec, $ptype, $fieldIndex, ...$fieldValues);
             $this->addPolicies($sec, $ptype, $newPolicies);
         });

src/Commands/RoleAssign.php

@@ -17,7 +17,8 @@ class RoleAssign extends Command
      */
     protected $signature = 'role:assign
                             {user : the identifier of user}
-                            {role : the name of role}';
+                            {role : the name of role}
+                            {--ptype= : the ptype of role}';
 
     /**
      * The console command description.
@@ -35,8 +36,9 @@ class RoleAssign extends Command
     {
         $user = $this->argument('user');
         $role = $this->argument('role');
+        $ptype = $this->option('ptype') ?: 'g';
 
-        $ret = Enforcer::addRoleForUser($user, $role);
+        $ret = Enforcer::addNamedGroupingPolicy($ptype, $user, $role);
         if ($ret) {
             $this->info('Added `'.$role.'` role to `'.$user.'` successfully');
         } else {

src/Contracts/ModelLoader.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Lauthz\Contracts;
+
+
+use Casbin\Model\Model;
+
+interface  ModelLoader
+{
+    /**
+     * Loads model definitions into the provided model object.
+     *
+     * @param Model $model
+     * @return void
+     */
+    function loadModel(Model $model): void;
+}

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

@@ -2,14 +2,15 @@
 
 namespace Lauthz;
 
-use Casbin\Bridge\Logger\LoggerBridge;
 use Casbin\Enforcer;
 use Casbin\Model\Model;
 use Casbin\Log\Log;
+use Casbin\Log\Logger\DefaultLogger;
 use Lauthz\Contracts\Factory;
 use Lauthz\Models\Rule;
 use Illuminate\Support\Arr;
 use InvalidArgumentException;
+use Lauthz\Loaders\ModelLoaderManager;
 
 /**
  * @mixin \Casbin\Enforcer
@@ -79,19 +80,17 @@ class EnforcerManager implements Factory
 
         if ($logger = Arr::get($config, 'log.logger')) {
             if (is_string($logger)) {
-                $logger = $this->app->make($logger);
+                $logger = new DefaultLogger($this->app->make($logger));
             }
 
-            Log::setLogger(new LoggerBridge($logger));
+            Log::setLogger($logger);
         }
 
         $model = new Model();
-        $configType = Arr::get($config, 'model.config_type');
-        if ('file' == $configType) {
-            $model->loadModel(Arr::get($config, 'model.config_file_path', ''));
-        } elseif ('text' == $configType) {
-            $model->loadModelFromText(Arr::get($config, 'model.config_text', ''));
-        }
+        $loader = $this->app->make(ModelLoaderManager::class);
+        $loader->initFromConfig($config);
+        $loader->loadModel($model);
+
         $adapter = Arr::get($config, 'adapter');
         if (!is_null($adapter)) {
             $adapter = $this->app->make($adapter, [
@@ -99,7 +98,7 @@ class EnforcerManager implements Factory
             ]);
         }
 
-        return new Enforcer($model, $adapter, Arr::get($config, 'log.enabled', false));
+        return new Enforcer($model, $adapter, $logger, Arr::get($config, 'log.enabled', false));
     }
 
     /**

src/LauthzServiceProvider.php

@@ -3,6 +3,8 @@
 namespace Lauthz;
 
 use Illuminate\Support\ServiceProvider;
+use Lauthz\EnforcerLocalizer;
+use Lauthz\Loaders\ModelLoaderManager;
 use Lauthz\Models\Rule;
 use Lauthz\Observers\RuleObserver;
 
@@ -30,6 +32,8 @@ class LauthzServiceProvider extends ServiceProvider
         $this->mergeConfigFrom(__DIR__ . '/../config/lauthz.php', 'lauthz');
 
         $this->bootObserver();
+
+        $this->registerLocalizer();
     }
 
     /**
@@ -50,5 +54,23 @@ class LauthzServiceProvider extends ServiceProvider
         $this->app->singleton('enforcer', function ($app) {
             return new EnforcerManager($app);
         });
+
+        $this->app->singleton(ModelLoaderManager::class, function ($app) {
+            return new ModelLoaderManager($app);
+        });
+
+        $this->app->singleton(EnforcerLocalizer::class, function ($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 registerLocalizer()
+    {
+        $this->app->make(EnforcerLocalizer::class)->register();
     }
 }

src/Loaders/FileLoader.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Lauthz\Loaders;
+
+use Casbin\Model\Model;
+use Illuminate\Support\Arr;
+use Lauthz\Contracts\ModelLoader;
+
+class FileLoader implements ModelLoader
+{
+    /**
+     * The path to the model file.
+     *
+     * @var string
+     */
+    private $filePath;
+
+    /**
+     * Constructor to initialize the file path.
+     *
+     * @param array $config
+     */
+    public function __construct(array $config)
+    {
+        $this->filePath = Arr::get($config, 'model.config_file_path', '');
+    }
+
+    /**
+     * Loads model from file.
+     *
+     * @param Model $model
+     * @return void
+     * @throws \Casbin\Exceptions\CasbinException
+     */
+    public function loadModel(Model $model): void
+    {
+        $model->loadModel($this->filePath);
+    }
+}

src/Loaders/ModelLoaderManager.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/TextLoader.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Lauthz\Loaders;
+
+use Casbin\Model\Model;
+use Illuminate\Support\Arr;
+use Lauthz\Contracts\ModelLoader;
+
+class TextLoader implements ModelLoader
+{
+    /**
+     * Model text.
+     *
+     * @var string
+     */
+    private $text;
+
+    /**
+     * Constructor to initialize the model text.
+     *
+     * @param array $config
+     */
+    public function __construct(array $config)
+    {
+        $this->text = Arr::get($config, 'model.config_text', '');
+    }
+
+    /**
+     * Loads model from text.
+     *
+     * @param Model $model
+     * @return void
+     * @throws \Casbin\Exceptions\CasbinException
+     */
+    public function loadModel(Model $model): void
+    {
+        $model->loadModelFromText($this->text);
+    }
+}

src/Loaders/UrlLoader.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Lauthz\Loaders;
+
+use Casbin\Model\Model;
+use Illuminate\Support\Arr;
+use Lauthz\Contracts\ModelLoader;
+use RuntimeException;
+
+class UrlLoader implements ModelLoader
+{
+    /**
+     * The url to fetch the remote model string.
+     *
+     * @var string
+     */
+    private $url;
+
+    /**
+     * Constructor to initialize the url path.
+     *
+     * @param array $config
+     */
+    public function __construct(array $config)
+    {
+        $this->url = Arr::get($config, 'model.config_url', '');
+    }
+
+    /**
+     * Loads model from remote url.
+     *
+     * @param Model $model
+     * @return void
+     * @throws \Casbin\Exceptions\CasbinException
+     * @throws RuntimeException
+     */
+    public function loadModel(Model $model): void
+    {
+        $contextOptions = [
+            'http' => [
+                'method'  => 'GET',
+                'header'  => "Accept: text/plain\r\n",
+                'timeout' => 3
+            ]
+        ];
+
+        $context = stream_context_create($contextOptions);
+        $response = @file_get_contents($this->url, false, $context);
+        if ($response === false) {
+            $error = error_get_last();
+            throw new RuntimeException(
+                "Failed to fetch remote model " . $this->url . ": " . $error['message']
+            );
+        }
+
+        $model->loadModelFromText($response);
+    }
+}

src/Middlewares/EnforcerMiddleware.php

@@ -31,6 +31,7 @@ class EnforcerMiddleware
         $user = Auth::user();
         $identifier = $user->getAuthIdentifier();
         if (method_exists($user, 'getAuthzIdentifier')) {
+            /** @var \Lauthz\Tests\Models\User $user */
             $identifier = $user->getAuthzIdentifier();
         }
         $identifier = strval($identifier);

tests/Commands/RoleAssignTest.php

@@ -2,6 +2,7 @@
 
 namespace Lauthz\Tests\Commands;
 
+use Casbin\Model\Model;
 use Lauthz\Facades\Enforcer;
 use Lauthz\Tests\TestCase;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
@@ -19,5 +20,21 @@ class RoleAssignTest extends TestCase
         $exitCode = Artisan::call('role:assign', ['user' => 'eve', 'role' => 'writer']);
         $this->assertFalse(0 === $exitCode);
         $this->assertTrue(Enforcer::hasRoleForUser('eve', 'writer'));
+
+        $model = Model::newModel();
+        $model->addDef('r', 'r', 'sub, obj, act');
+        $model->addDef('p', 'p', 'sub, obj, act');
+        $model->addDef('g', 'g', '_, _');
+        $model->addDef('g', 'g2', '_, _');
+        $model->addDef('e', 'e', 'some(where (p.eft == allow))');
+        $model->addDef('m', 'm', 'g(r.sub, p.sub) && g2(r.obj, p.obj) && r.act == p.act');
+        Enforcer::setModel($model);
+        Enforcer::loadPolicy();
+        $this->assertFalse(Enforcer::hasNamedGroupingPolicy('g2', 'eve', 'writer'));
+        $exitCode = Artisan::call('role:assign', ['user' => 'eve', 'role' => 'writer', '--ptype' => 'g2']);
+        $this->assertTrue(0 === $exitCode);
+        $exitCode = Artisan::call('role:assign', ['user' => 'eve', 'role' => 'writer', '--ptype' => 'g2']);
+        $this->assertFalse(0 === $exitCode);
+        $this->assertTrue(Enforcer::hasNamedGroupingPolicy('g2', 'eve', 'writer'));
     }
 }

tests/DatabaseAdapterForCacheTest.php

@@ -2,11 +2,9 @@
 
 namespace Lauthz\Tests;
 
-use Enforcer;
 use Lauthz\Models\Rule;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
-use Casbin\Persist\Adapters\Filter;
-use Casbin\Exceptions\InvalidFilterTypeException;
+use Lauthz\Facades\Enforcer;
 
 class DatabaseAdapterForCacheTest extends TestCase
 {

tests/DatabaseAdapterTest.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 @@ class DatabaseAdapterTest extends TestCase
         $this->assertEquals([
             ['bob', 'data2', 'write']
         ], Enforcer::getPolicy());
-        
+
         // Filter
         $filter = new Filter(['v2'], ['read']);
         Enforcer::loadFilteredPolicy($filter);

tests/EnforcerCustomLocalizerTest.php

@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Contracts\Auth\Access\Gate;
+use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Lauthz\Tests\TestCase;
+
+class EnforcerCustomLocalizerTest extends TestCase
+{
+    use DatabaseMigrations;
+
+    public function testCustomRegisterAtGatesBefore()
+    {
+        $user = $this->user("alice");
+        $this->assertFalse($user->can('data3,read'));
+
+        app(Gate::class)->before(function () {
+            return true;
+        });
+
+        $this->assertTrue($user->can('data3,read'));
+    }
+
+    public function testCustomRegisterAtGatesDefine()
+    {
+        $user = $this->user("alice");
+        $this->assertFalse($user->can('data3,read'));
+
+        app(Gate::class)->define('data3,read', function () {
+            return true;
+        });
+
+        $this->assertTrue($user->can('data3,read'));
+    }
+
+    public function initConfig()
+    {
+        parent::initConfig();
+        $this->app['config']->set('lauthz.localizer.enabled_register_at_gates', false);
+    }
+}

tests/EnforcerLocalizerTest.php

@@ -0,0 +1,69 @@
+<?php
+
+use Illuminate\Contracts\Auth\Access\Gate;
+use Illuminate\Foundation\Testing\DatabaseMigrations;
+use Lauthz\Facades\Enforcer;
+use Lauthz\Tests\TestCase;
+
+class EnforcerLocalizerTest extends TestCase
+{
+    use DatabaseMigrations;
+
+    public function testRegisterAtGates()
+    {
+        $user = $this->user('alice');
+        $this->assertTrue($user->can('data1,read'));
+        $this->assertFalse($user->can('data1,write'));
+        $this->assertFalse($user->cannot('data2,read'));
+
+        Enforcer::guard('second')->addPolicy('alice', 'data1', 'read');
+        $this->assertTrue($user->can('data1,read', 'second'));
+        $this->assertFalse($user->can('data3,read', 'second'));
+    }
+
+    public function testNotLogin()
+    {
+        $this->assertFalse(app(Gate::class)->allows('data1,read'));
+        $this->assertTrue(app(Gate::class)->forUser($this->user('alice'))->allows('data1,read'));
+        $this->assertFalse(app(Gate::class)->forUser($this->user('bob'))->allows('data1,read'));
+    }
+
+    public function testAfterLogin()
+    {
+        $this->login('alice');
+        $this->assertTrue(app(Gate::class)->allows('data1,read'));
+        $this->assertTrue(app(Gate::class)->allows('data2,read'));
+        $this->assertTrue(app(Gate::class)->allows('data2,write'));
+
+        $this->login('bob');
+        $this->assertFalse(app(Gate::class)->allows('data1,read'));
+        $this->assertTrue(app(Gate::class)->allows('data2,write'));
+    }
+
+    public function initConfig()
+    {
+        parent::initConfig();
+        $this->app['config']->set('lauthz.second.model.config_type', 'text');
+        $this->app['config']->set(
+            'lauthz.second.model.config_text',
+            $this->getModelText()
+        );
+    }
+
+    protected function getModelText(): string
+    {
+        return <<<EOT
+[request_definition]
+r = sub, obj, act
+
+[policy_definition]
+p = sub, obj, act
+
+[policy_effect]
+e = some(where (p.eft == allow))
+
+[matchers]
+m = r.sub == p.sub && r.obj == p.obj && r.act == p.act
+EOT;
+    }
+}

tests/ModelLoaderTest.php

@@ -0,0 +1,138 @@
+<?php
+
+namespace Lauthz\Tests;
+
+use Lauthz\Facades\Enforcer;
+use Lauthz\Loaders\ModelLoaderManager;
+use InvalidArgumentException;
+use RuntimeException;
+
+
+class ModelLoaderTest extends TestCase
+{
+    public function testUrlLoader(): void
+    {
+        $this->initUrlConfig();
+
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+
+        Enforcer::addPolicy('data_admin', 'data', 'read');
+        Enforcer::addRoleForUser('alice', 'data_admin');
+        $this->assertTrue(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    public function testTextLoader(): void
+    {
+        $this->initTextConfig();
+
+        Enforcer::addPolicy('data_admin', 'data', 'read');
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+        $this->assertTrue(Enforcer::enforce('data_admin', 'data', 'read'));
+    }
+
+    public function testFileLoader(): void
+    {
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+
+        Enforcer::addPolicy('data_admin', 'data', 'read');
+        Enforcer::addRoleForUser('alice', 'data_admin');
+        $this->assertTrue(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    public function testCustomLoader(): void
+    {
+        $this->initCustomConfig();
+        Enforcer::guard('second')->addPolicy('data_admin', 'data', 'read');
+        $this->assertFalse(Enforcer::guard('second')->enforce('alice', 'data', 'read'));
+        $this->assertTrue(Enforcer::guard('second')->enforce('data_admin', 'data', 'read'));
+    }
+
+    public function testMultipleLoader(): void
+    {
+        $this->testFileLoader();
+        $this->testCustomLoader();
+    }
+
+    public function testEmptyModel(): void
+    {
+        Enforcer::shouldUse('third');
+        $this->expectException(InvalidArgumentException::class);
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    public function testEmptyLoaderType(): void
+    {
+        $this->app['config']->set('lauthz.basic.model.config_type', '');
+        $this->expectException(InvalidArgumentException::class);
+
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    public function testNotExistLoaderType(): void
+    {
+        $this->app['config']->set('lauthz.basic.model.config_type', 'not_exist');
+        $this->expectException(InvalidArgumentException::class);
+
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    public function testBadUrlConnection(): void
+    {
+        $this->initUrlConfig();
+        $this->app['config']->set('lauthz.basic.model.config_url', 'http://filenoexists');
+        $this->expectException(RuntimeException::class);
+
+        $this->assertFalse(Enforcer::enforce('alice', 'data', 'read'));
+    }
+
+    protected function initUrlConfig(): void
+    {
+        $this->app['config']->set('lauthz.basic.model.config_type', 'url');
+        $this->app['config']->set(
+            'lauthz.basic.model.config_url',
+            'https://raw.githubusercontent.com/casbin/casbin/master/examples/rbac_model.conf'
+        );
+    }
+
+    protected function initTextConfig(): void
+    {
+        $this->app['config']->set('lauthz.basic.model.config_type', 'text');
+        $this->app['config']->set(
+            'lauthz.basic.model.config_text',
+            $this->getModelText()
+        );
+    }
+
+    protected function initCustomConfig(): void
+    {
+        $this->app['config']->set('lauthz.second.model.config_type', 'custom');
+        $this->app['config']->set(
+            'lauthz.second.model.config_text',
+            $this->getModelText()
+        );
+
+        $config = $this->app['config']->get('lauthz.second');
+        $loader = $this->app->make(ModelLoaderManager::class);
+
+        $loader->extend('custom', function () use ($config) {
+            return new \Lauthz\Loaders\TextLoader($config);
+        });
+    }
+
+    protected function getModelText(): string
+    {
+        return <<<EOT
+[request_definition]
+r = sub, obj, act
+
+[policy_definition]
+p = sub, obj, act
+
+[policy_effect]
+e = some(where (p.eft == allow))
+
+[matchers]
+m = r.sub == p.sub && r.obj == p.obj && r.act == p.act
+EOT;
+    }
+}

tests/RequestMiddlewareTest.php

@@ -5,6 +5,7 @@ namespace Lauthz\Tests;
 use Lauthz\Middlewares\RequestMiddleware;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
 use Illuminate\Http\Request;
+use Lauthz\Facades\Enforcer;
 use Lauthz\Models\Rule;
 
 class RequestMiddlewareTest extends TestCase
@@ -34,11 +35,19 @@ class RequestMiddlewareTest extends TestCase
         $this->assertEquals($this->middleware(Request::create('/foo1/123', 'PUT')), 'Unauthorized Exception');
 
         $this->assertEquals($this->middleware(Request::create('/proxy', 'GET')), 'Unauthorized Exception');
+        
+        Enforcer::guard('second')->addPolicy('alice', '/foo1/*', '(GET|POST)');
+
+        $this->assertEquals($this->middleware(Request::create('/foo1/123', 'GET'), 'second'), 200);
+        $this->assertEquals($this->middleware(Request::create('/foo1/123', 'POST'), 'second'), 200);
+        $this->assertEquals($this->middleware(Request::create('/foo1/123', 'PUT'), 'second'), 'Unauthorized Exception');
+
+        $this->assertEquals($this->middleware(Request::create('/proxy', 'GET'), 'second'), 'Unauthorized Exception');
     }
 
-    protected function middleware($request)
+    protected function middleware($request, ...$guards)
     {
-        return parent::runMiddleware(RequestMiddleware::class, $request);
+        return parent::runMiddleware(RequestMiddleware::class, $request, ...$guards);
     }
 
     protected function initConfig()
@@ -62,6 +71,8 @@ e = some(where (p.eft == allow))
 m = g(r.sub, p.sub) && r.sub == p.sub && keyMatch2(r.obj, p.obj) && regexMatch(r.act, p.act)
 EOT;
         $this->app['config']->set('lauthz.basic.model.config_text', $text);
+        $this->app['config']->set('lauthz.second.model.config_type', 'text');
+        $this->app['config']->set('lauthz.second.model.config_text', $text);
     }
 
     protected function initTable()

tests/TestCase.php

@@ -27,9 +27,9 @@ abstract class TestCase extends BaseTestCase
         });
 
         $this->app->make(Kernel::class)->bootstrap();
+        $this->initConfig();
 
         $this->app->register(\Lauthz\LauthzServiceProvider::class);
-        $this->initConfig();
 
         $this->artisan('vendor:publish', ['--provider' => 'Lauthz\LauthzServiceProvider']);
         $this->artisan('migrate', ['--force' => true]);
@@ -46,6 +46,7 @@ abstract class TestCase extends BaseTestCase
         $this->app['config']->set('database.default', 'mysql');
         $this->app['config']->set('database.connections.mysql.charset', 'utf8');
         $this->app['config']->set('database.connections.mysql.collation', 'utf8_unicode_ci');
+        $this->app['config']->set('cache.default', 'array');
         // $app['config']->set('lauthz.log.enabled', true);
     }