Concord (Laravel) Module For Handling Permissions And Roles

This package is a fork of Spatie's Permission v2.1.5. Reason for fork was to convert the package into a Concord compliant module.

v1.0: Most of the changes have been ported from Spatie v2.9.0

This package allows you to manage user permissions and roles in a database.

Once installed you can do stuff like this:

// Adding permissions to a user
$user->givePermissionTo('edit articles');

// Adding permissions via a role
$user->assignRole('writer');

$role->givePermissionTo('edit articles');

If you're using multiple guards we've got you covered as well. Every guard will have its own set of permissions and roles that can be assigned to the guard's users. Read about it in the using multiple guards section of the readme.

Because all permissions will be registered on Laravel's gate, you can test if a user has a permission with Laravel's default can function:

$user->can('edit articles');

The original author of this package is Spatie, a webdesign agency in Antwerp, Belgium. You'll find an overview of all their open source projects on their website.

Installation

This version of the package is intended ton be used as a Concord module in Laravel 5.4 or higher. If you don't use Concord take a look at the original Spatie package.

You can install the package via composer:

composer require konekt/acl

Now add the module in config/concord.php file:

'modules' => [
    // ...
    Konekt\Acl\Providers\ModuleServiceProvider::class,
];

The package contains some migrations that you can run as usual by:

php artisan migrate

You can modify the configuration within app/concord.php:

return [
    'modules' => [
        // ...
        Konekt\Acl\Providers\ModuleServiceProvider::class => [
            /*
             * By default all permissions will be cached for 24 hours unless a permission or
             * role is updated. Then the cache will be flushed immediately.
             */
             
            'cache_expiration_time' => 60 * 24,
        
            /*
             * When set to true, the required permission/role names are added to the exception
             * message. This could be considered an information leak in some contexts, so
             * the default setting is false here for optimum safety.
             */
        
            'display_permission_in_exception' => false
            
        ]
    ]
];

The main difference between this fork and the original Spatie version is that models are managed via Concord's model proxies feature.

Thus Model classes and table names have been removed from config and have been added as Concord models. Thus you can easily replace them in your using Concord's facilities:

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Konekt\Acl\Contracts\Role as RoleContract;
use Konekt\Acl\Contracts\Permission as PermissionContract;

class AppServiceProvider extends ServiceProvider
{
    public function register()
    {
        // To override the role model
        $this->app->concord->registerModel(RoleContract::class, \App\Role::class);
        // To override the Permission model
        $this->app->concord->registerModel(PermissionContract::class, \App\Permission::class);
    }
}

If you also want to change the names of the db tables, set the $table property of the model:

namespace App;

use Konekt\Acl\Models\Role as BaseRole;

class Role extends BaseRole
{
    protected $table = 'my_roles_table_name';
}

Important: Make sure any custom model class implements its appropriate interface (Konekt\Acl\Contracts\Role, Konekt\Acl\Contracts\Permission)

Usage

First, add the Konekt\Acl\Traits\HasRoles trait to your User model(s):

use Illuminate\Foundation\Auth\User as Authenticatable;
use Konekt\Acl\Traits\HasRoles;

class User extends Authenticatable
{
    use HasRoles;
    
    // ...
}

• note that if you need to use HasRoles trait with another model ex.Page you will also need to add protected $guard_name = 'web'; as well to that model or you would get an error

use Illuminate\Database\Eloquent\Model;
use Spatie\Permission\Traits\HasRoles;

class Page extends Model
{
   use HasRoles;

   protected $guard_name = 'web'; // or whatever guard you want to use

   // ...
}

This package allows for users to be associated with permissions and roles. Every role is associated with multiple permissions. A Role and a Permission are regular Eloquent models. They require a name and can be created like this:

use Konekt\Acl\Models\Role;
use Konekt\Acl\Models\Permission;

$role = Role::create(['name' => 'writer']);
$permission = Permission::create(['name' => 'edit articles']);

If you want to use your own models instead of the built in ones, use their proxy counterparts instead:

use Konekt\Acl\Models\RoleProxy;
use Konekt\Acl\Models\PermissionProxy;

$role = RoleProxy::create(['name' => 'writer']);
$permission = PermissionProxy::create(['name' => 'edit articles']);

If you're using multiple guards the guard_name attribute needs to be set as well. Read about it in the using multiple guards section of the readme.

The HasRoles trait adds Eloquent relationships to your models, which can be accessed directly or used as a base query:

// get a list of all permissions directly assigned to the user
$permissions = $user->permissions;

// get all permissions inherited by the user via roles
$permissions = $user->getAllPermissions();

// get a collection of all defined roles
$roles = $user->getRoleNames(); // Returns a collection

The HasRoles trait also adds a role scope to your models to scope the query to certain roles or permissions:

$users = User::role('writer')->get(); // Returns only users with the role 'writer'

The role scope can accept a string, a \Spatie\Permission\Models\Role object or an \Illuminate\Support\Collection object.

The same trait also adds a scope to only get users that have a certain permission.

$users = User::permission('edit articles')->get(); // Returns only users with the permission 'edit articles' (inherited or directly)

The scope can accept a string, a \Spatie\Permission\Models\Permission object or an \Illuminate\Support\Collection object.

Using "direct" permissions (see below to use both roles and permissions)

A permission can be given to any user:

$user->givePermissionTo('edit articles');

// You can also give multiple permission at once
$user->givePermissionTo('edit articles', 'delete articles');

// You may also pass an array
$user->givePermissionTo(['edit articles', 'delete articles']);

A permission can be revoked from a user:

$user->revokePermissionTo('edit articles');

Or revoke & add new permissions in one go:

$user->syncPermissions(['edit articles', 'delete articles']);

You can test if a user has a permission:

$user->hasPermissionTo('edit articles');

...or if a user has multiple permissions:

$user->hasAnyPermission(['edit articles', 'publish articles', 'unpublish articles']);

Saved permissions will be registered with the Illuminate\Auth\Access\Gate class for the default guard. So you can test if a user has a permission with Laravel's default can function:

$user->can('edit articles');

Using permissions via roles

A role can be assigned to any user:

$user->assignRole('writer');

// You can also assign multiple roles at once
$user->assignRole('writer', 'admin');
// or as an array
$user->assignRole(['writer', 'admin']);

A role can be removed from a user:

$user->removeRole('writer');

Roles can also be synced:

// All current roles will be removed from the user and replaced by the array given
$user->syncRoles(['writer', 'admin']);

You can determine if a user has a certain role:

$user->hasRole('writer');

You can also determine if a user has any of a given list of roles:

$user->hasAnyRole(RoleProxy::all());

You can also determine if a user has all of a given list of roles:

$user->hasAllRoles(Role::all());

The assignRole, hasRole, hasAnyRole, hasAllRoles and removeRole functions can accept a string, a \Konekt\Acl\Models\Role object or an \Illuminate\Support\Collection object.

A permission can be given to a role:

$role->givePermissionTo('edit articles');

You can determine if a role has a certain permission:

$role->hasPermissionTo('edit articles');

A permission can be revoked from a role:

$role->revokePermissionTo('edit articles');

The givePermissionTo and revokePermissionTo functions can accept a string or a Konekt\Acl\Models\Permission object.

Permissions are inherited from roles automatically. Additionally, individual permissions can be assigned to the user too. For instance:

$role = Role::findByName('writer');
$role->givePermissionTo('edit articles');

$user->assignRole('writer');

$user->givePermissionTo('delete articles');

In the above example, a role is given permission to edit articles and this role is assigned to a user. Now the user can edit articles and additionally delete articles. The permission of 'delete articles' is the user's direct permission because it is assigned directly to them. When we call $user->hasDirectPermission('delete articles') it returns true, but false for $user->hasDirectPermission('edit articles').

This method is useful if one builds a form for setting permissions for roles and users in an application and wants to restrict or change inherited permissions of roles of the user, i.e. allowing to change only direct permissions of the user.

You can list all of these permissions:

// Direct permissions
$user->getDirectPermissions(); // Or $user->permissions;

// Permissions inherited from the user's roles
$user->getPermissionsViaRoles();

// All permissions which apply on the user (inherited and direct)
$user->getAllPermissions();

All these responses are collections of Konekt\Acl\Models\Permission objects.

If we follow the previous example, the first response will be a collection with the 'delete article' permission, the second will be a collection with the 'edit article' permission and the third will contain both.

If we follow the previous example, the first response will be a collection with the delete article permission and the second will be a collection with the edit article permission and the third will contain both.

Using Blade directives

This package also adds Blade directives to verify whether the currently logged in user has all or any of a given list of roles.

Optionally you can pass in the guard that the check will be performed on as a second argument.

Blade and Roles

Test for a specific role:

@role('writer')
    I am a writer!
@else
    I am not a writer...
@endrole

is the same as

@hasrole('writer')
    I am a writer!
@else
    I am not a writer...
@endhasrole

Test for any role in a list:

@hasanyrole($collectionOfRoles)
    I have one or more of these roles!
@else
    I have none of these roles...
@endhasanyrole
<!-- or -->
@hasanyrole('writer|admin')
    I am either a writer or an admin or both!
@else
    I have none of these roles...
@endhasanyrole

Test for all roles:

@hasallroles($collectionOfRoles)
    I have all of these roles!
@else
    I do not have all of these roles...
@endhasallroles
// or
@hasallroles('writer|admin')
    I am both a writer and an admin!
@else
    I do not have all of these roles...
@endhasallroles

Blade and Permissions

This package doesn't add any permission-specific Blade directives. Instead, use Laravel's native @can directive to check if a user has a certain permission.

@can('edit articles')
  //
@endcan

or

@if(auth()->user()->can('edit articles') && $some_other_condition)
  //
@endif

Using multiple guards

When using the default Laravel auth configuration all of the above methods will work out of the box, no extra configuration required.

However, when using multiple guards they will act like namespaces for your permissions and roles. Meaning every guard has its own set of permissions and roles that can be assigned to their user model.

Using permissions and roles with multiple guards

By default the default guard (config('auth.defaults.guard')) will be used as the guard for new permissions and roles. When creating permissions and roles for specific guards you'll have to specify their guard_name on the model:

// Create a superadmin role for the admin users
$role = RoleProxy::create(['guard_name' => 'admin', 'name' => 'superadmin']);

// Define a `publish articles` permission for the admin users belonging to the admin guard
$permission = Permission::create(['guard_name' => 'admin', 'name' => 'publish articles']);

// Define a *different* `publish articles` permission for the regular users belonging to the web guard
$permission = Permission::create(['guard_name' => 'web', 'name' => 'publish articles']);

To check if a user has permission for a specific guard:

$user->hasPermissionTo('publish articles', 'admin');

Assigning permissions and roles to guard users

You can use the same methods to assign permissions and roles to users as described above in using permissions via roles. Just make sure the guard_name on the permission or role matches the guard of the user, otherwise a GuardDoesNotMatch exception will be thrown.

Using blade directives with multiple guards

You can use all of the blade directives listed in using blade directives by passing in the guard you wish to use as the second argument to the directive:

@role('super-admin', 'admin')
    I am a super-admin!
@else
    I am not a super-admin...
@endrole

Using a middleware

This package comes with RoleMiddleware and PermissionMiddleware middleware. You can add them inside your app/Http/Kernel.php file.

protected $routeMiddleware = [
    // ...
    'role' => \Konekt\Acl\Http\Middleware\RoleMiddleware::class,
    'permission' => \Konekt\Acl\Http\Middleware\PermissionMiddleware::class,
];

Then you can protect your routes using middleware rules:

Route::group(['middleware' => ['role:super-admin']], function () {
    //
});

Route::group(['middleware' => ['permission:publish articles']], function () {
    //
});

Route::group(['middleware' => ['role:super-admin','permission:publish articles']], function () {
    //
});

Alternatively, you can separate multiple roles or permission with a | (pipe) character:

Route::group(['middleware' => ['role:super-admin|writer']], function () {
    //
});

Route::group(['middleware' => ['permission:publish articles|edit articles']], function () {
    //
});

You can protect your controllers similarly, by setting desired middleware in the constructor:

public function __construct()
{
    $this->middleware(['role:super-admin','permission:publish articles|edit articles']);
}

Catching role and permission failures

If you want to override the default 403 response, you can catch the UnauthorizedException using your app's exception handler:

public function render($request, Exception $exception)
{
    if ($exception instanceof \Konekt\Acl\Exceptions\UnauthorizedException) {
        // Code here ...
    }

    return parent::render($request, $exception);
}

Using artisan commands

You can create a role or permission from a console with artisan commands.

php artisan acl:create-role writer

php artisan acl:create-permission 'edit articles'

When creating permissions and roles for specific guards you can specify the guard names as a second argument:

php artisan acl:create-role writer web

php artisan acl:create-permission 'edit articles' web

Unit Testing

In your application's tests, if you are not seeding roles and permissions as part of your test setUp() then you may run into a chicken/egg situation where roles and permissions aren't registered with the gate (because your tests create them after that gate registration is done). Working around this is simple: In your tests simply add a setUp() instruction to re-register the permissions, like this:

    public function setUp()
    {
        // first include all the normal setUp operations
        parent::setUp();

        // now re-register all the roles and permissions
        $this->app->make(\Konekt\Acl\PermissionRegistrar::class)->registerPermissions();
    }

Database Seeding

Two notes about Database Seeding:

1. It is best to flush the konekt.acl.cache before seeding, to avoid cache conflict errors. This can be done from an Artisan command (see Troubleshooting: Cache section, later) or directly in a seeder class (see example below).

2. Here's a sample seeder, which clears the cache, creates permissions and then assigns permissions to roles:

   use Illuminate\Database\Seeder;
   use Konekt\Acl\Models\Role;
   use Konekt\Acl\Models\Permission;
   
   class RolesAndPermissionsSeeder extends Seeder
   {
       public function run()
   	{
       	// Reset cached roles and permissions
           app()['cache']->forget('konekt.acl.cache');
   
           // create permissions
           Permission::create(['name' => 'edit articles']);
           Permission::create(['name' => 'delete articles']);
           Permission::create(['name' => 'publish articles']);
           Permission::create(['name' => 'unpublish articles']);
   
           // create roles and assign existing permissions
           $role = Role::create(['name' => 'writer']);
           $role->givePermissionTo('edit articles');
           $role->givePermissionTo('delete articles');
   
           $role = Role::create(['name' => 'admin']);
           $role->givePermissionTo('publish articles');
           $role->givePermissionTo('unpublish articles');
       }
   }
   
   

Extending

If you need to extend or replace the existing Role or Permission models you just need to keep the following things in mind:

• Your Role model needs to implement the Konekt\Acl\Contracts\Role contract
• Your Permission model needs to implement the Konekt\Acl\Contracts\Permission contract
• In you app service provider invoke:

      $this->app->concord->registerModel(Konekt\Acl\Contracts\Role::class, \App\Role::class);
  

Cache

Role and Permission data are cached to speed up performance.

When you use the supplied methods for manipulating roles and permissions, the cache is automatically reset for you:

$user->assignRole('writer');
$user->removeRole('writer');
$user->syncRoles(params);
$role->givePermissionTo('edit articles');
$role->revokePermissionTo('edit articles');
$role->syncPermissions(params);
$permission->assignRole('writer');
$permission->removeRole('writer');
$permission->syncRoles(params);

HOWEVER, if you manipulate permission/role data directly in the database instead of calling the supplied methods, then you will not see the changes reflected in the application unless you manually reset the cache.

Manual cache reset

To manually reset the cache for this package, run:

php artisan acl:cache:clear

It is equivalent to running php artisan cache:forget konekt.acl.cache

Cache Identifier

TIP: If you are leveraging a caching service such as redis or memcached and there are other sites running on your server, you could run into cache clashes. It is prudent to set your own cache prefix in /config/cache.php to something unique for each application. This will prevent other applications from accidentally using/changing your cached data.

Need a UI?

The Konekt AppShell Package is an extensible Business Application boilerplate that incorporates this Acl package and contains a UI for managing permissions, roles & users.

This package doesn't come with any screens out of the box. To get started check out this extensive tutorial by Caleb Oki.

Changelog

Please see Changelog for more information what has changed recently.

Testing

composer test

Contributing

Please see CONTRIBUTING for details.

Postcardware

You're free to use this package (it's MIT-licensed), but if it makes it to your production environment Spatie will highly appreciate you send them a postcard from your hometown, mentioning which of their package(s) you are using.

Their address is: Spatie, Samberstraat 69D, 2060 Antwerp, Belgium.

All received postcards are published on spatie.be.

Credits

• Attila Fulop
• Freek Van der Herten
• All Contributors

This package is a modified variant of Spatie Permission package which is heavily based on Jeffrey Way's awesome Laracasts lessons on permissions and roles. His original code can be found in this repo on GitHub.

Special thanks to Alex Vanderbist who greatly helped with Spatie/Permission v2.

Resources

• How to create a UI for managing the permissions and roles

Alternatives

• spatie/laravel-permission
• JosephSilber/bouncer
• Zizaco/entrust
• bican/roles

License

The MIT License (MIT). Please see License File for more information.