From 74cb1477bb921a2378ea22a552b71a48c11e0931 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Fri, 20 Jul 2018 16:34:32 +0200
Subject: Better API (integrated oauth completely)

---
 .../Api/Controllers/DefaultApiController.php       |  17 +++
 infrastructure/Api/routes_public.php               |   3 +
 infrastructure/Auth/AuthServiceProvider.php        |  41 +++++++
 .../Auth/Controllers/LoginController.php           |  38 +++++++
 .../Exceptions/InvalidCredentialsException.php     |  13 +++
 infrastructure/Auth/LoginProxy.php                 | 126 +++++++++++++++++++++
 .../Auth/Middleware/AccessTokenChecker.php         |  37 ++++++
 infrastructure/Auth/Requests/LoginRequest.php      |  21 ++++
 infrastructure/Auth/routes_protected.php           |   3 +
 infrastructure/Auth/routes_public.php              |   4 +
 infrastructure/Console/Kernel.php                  |  31 +++++
 infrastructure/Database/Eloquent/Model.php         |   9 ++
 infrastructure/Database/Eloquent/Repository.php    |   9 ++
 infrastructure/Events/Event.php                    |   8 ++
 infrastructure/Exceptions/Handler.php              |  50 ++++++++
 infrastructure/Http/ApiRequest.php                 |  21 ++++
 infrastructure/Http/Controller.php                 |  10 ++
 infrastructure/Http/Kernel.php                     |  47 ++++++++
 infrastructure/Http/Middleware/EncryptCookies.php  |  17 +++
 infrastructure/Http/RouteServiceProvider.php       |  23 ++++
 infrastructure/Testing/TestCase.php                |  29 +++++
 infrastructure/Testing/bootstrap.php               |   5 +
 .../Validation/resources/lang/en/validation.php    | 113 ++++++++++++++++++
 infrastructure/Version.php                         |  12 ++
 24 files changed, 687 insertions(+)
 create mode 100644 infrastructure/Api/Controllers/DefaultApiController.php
 create mode 100644 infrastructure/Api/routes_public.php
 create mode 100644 infrastructure/Auth/AuthServiceProvider.php
 create mode 100644 infrastructure/Auth/Controllers/LoginController.php
 create mode 100644 infrastructure/Auth/Exceptions/InvalidCredentialsException.php
 create mode 100644 infrastructure/Auth/LoginProxy.php
 create mode 100644 infrastructure/Auth/Middleware/AccessTokenChecker.php
 create mode 100644 infrastructure/Auth/Requests/LoginRequest.php
 create mode 100644 infrastructure/Auth/routes_protected.php
 create mode 100644 infrastructure/Auth/routes_public.php
 create mode 100644 infrastructure/Console/Kernel.php
 create mode 100644 infrastructure/Database/Eloquent/Model.php
 create mode 100644 infrastructure/Database/Eloquent/Repository.php
 create mode 100644 infrastructure/Events/Event.php
 create mode 100644 infrastructure/Exceptions/Handler.php
 create mode 100644 infrastructure/Http/ApiRequest.php
 create mode 100644 infrastructure/Http/Controller.php
 create mode 100644 infrastructure/Http/Kernel.php
 create mode 100644 infrastructure/Http/Middleware/EncryptCookies.php
 create mode 100644 infrastructure/Http/RouteServiceProvider.php
 create mode 100644 infrastructure/Testing/TestCase.php
 create mode 100644 infrastructure/Testing/bootstrap.php
 create mode 100644 infrastructure/Validation/resources/lang/en/validation.php
 create mode 100644 infrastructure/Version.php

(limited to 'infrastructure')

diff --git a/infrastructure/Api/Controllers/DefaultApiController.php b/infrastructure/Api/Controllers/DefaultApiController.php
new file mode 100644
index 0000000..cb850a5
--- /dev/null
+++ b/infrastructure/Api/Controllers/DefaultApiController.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Infrastructure\Api\Controllers;
+
+use Infrastructure\Http\Controller as BaseController;
+use Infrastructure\Version;
+
+class DefaultApiController extends BaseController
+{
+    public function index()
+    {
+        return response()->json([
+            'title'   => 'BEAM-Messenger',
+            'version' => Version::getGitTag()
+        ]);
+    }
+}
diff --git a/infrastructure/Api/routes_public.php b/infrastructure/Api/routes_public.php
new file mode 100644
index 0000000..3609ea8
--- /dev/null
+++ b/infrastructure/Api/routes_public.php
@@ -0,0 +1,3 @@
+<?php
+
+$router->get('/', 'DefaultApiController@index');
\ No newline at end of file
diff --git a/infrastructure/Auth/AuthServiceProvider.php b/infrastructure/Auth/AuthServiceProvider.php
new file mode 100644
index 0000000..944f812
--- /dev/null
+++ b/infrastructure/Auth/AuthServiceProvider.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Infrastructure\Auth;
+
+use Carbon\Carbon;
+use Laravel\Passport\Passport;
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
+
+class AuthServiceProvider extends ServiceProvider
+{
+    /**
+     * The policy mappings for the application.
+     *
+     * @var array
+     */
+    protected $policies = [
+        'App\Model' => 'App\Policies\ModelPolicy',
+    ];
+
+    /**
+     * Register any authentication / authorization services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $this->registerPolicies();
+
+        Passport::routes(function ($router) {
+            $router->forAccessTokens();
+            // Uncomment for allowing personal access tokens
+            // $router->forPersonalAccessTokens();
+            $router->forTransientTokens();
+        });
+
+        Passport::tokensExpireIn(Carbon::now()->addMinutes(10));
+
+        Passport::refreshTokensExpireIn(Carbon::now()->addDays(10));
+    }
+}
\ No newline at end of file
diff --git a/infrastructure/Auth/Controllers/LoginController.php b/infrastructure/Auth/Controllers/LoginController.php
new file mode 100644
index 0000000..a72f8a0
--- /dev/null
+++ b/infrastructure/Auth/Controllers/LoginController.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Infrastructure\Auth\Controllers;
+
+use Illuminate\Http\Request;
+use Infrastructure\Auth\LoginProxy;
+use Infrastructure\Auth\Requests\LoginRequest;
+use Infrastructure\Http\Controller;
+
+class LoginController extends Controller
+{
+    private $loginProxy;
+
+    public function __construct(LoginProxy $loginProxy)
+    {
+        $this->loginProxy = $loginProxy;
+    }
+
+    public function login(LoginRequest $request)
+    {
+        $email = $request->get('email');
+        $password = $request->get('password');
+
+        return $this->response($this->loginProxy->attemptLogin($email, $password));
+    }
+
+    public function refresh(Request $request)
+    {
+        return $this->response($this->loginProxy->attemptRefresh());
+    }
+
+    public function logout()
+    {
+        $this->loginProxy->logout();
+
+        return $this->response(null, 204);
+    }
+}
\ No newline at end of file
diff --git a/infrastructure/Auth/Exceptions/InvalidCredentialsException.php b/infrastructure/Auth/Exceptions/InvalidCredentialsException.php
new file mode 100644
index 0000000..45a8b6e
--- /dev/null
+++ b/infrastructure/Auth/Exceptions/InvalidCredentialsException.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Infrastructure\Auth\Exceptions;
+
+use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
+
+class InvalidCredentialsException extends UnauthorizedHttpException
+{
+    public function __construct($message = null, \Exception $previous = null, $code = 0)
+    {
+        parent::__construct('', $message, $previous, $code);
+    }
+}
\ No newline at end of file
diff --git a/infrastructure/Auth/LoginProxy.php b/infrastructure/Auth/LoginProxy.php
new file mode 100644
index 0000000..11783f0
--- /dev/null
+++ b/infrastructure/Auth/LoginProxy.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace Infrastructure\Auth;
+
+use Illuminate\Foundation\Application;
+use Infrastructure\Auth\Exceptions\InvalidCredentialsException;
+use Api\Users\Repositories\UserRepository;
+
+class LoginProxy
+{
+    const REFRESH_TOKEN = 'refreshToken';
+
+    private $apiConsumer;
+
+    private $auth;
+
+    private $cookie;
+
+    private $db;
+
+    private $request;
+
+    private $userRepository;
+
+    public function __construct(Application $app, UserRepository $userRepository) {
+        $this->userRepository = $userRepository;
+
+        $this->apiConsumer = $app->make('apiconsumer');
+        $this->auth = $app->make('auth');
+        $this->cookie = $app->make('cookie');
+        $this->db = $app->make('db');
+        $this->request = $app->make('request');
+    }
+
+    /**
+     * Attempt to create an access token using user credentials
+     *
+     * @param string $email
+     * @param string $password
+     */
+    public function attemptLogin($email, $password)
+    {
+        $user = $this->userRepository->getWhere('email', $email)->first();
+
+        if (!is_null($user)) {
+            return $this->proxy('password', [
+                'username' => $email,
+                'password' => $password
+            ]);
+        }
+
+        throw new InvalidCredentialsException();
+    }
+
+    /**
+     * Attempt to refresh the access token used a refresh token that 
+     * has been saved in a cookie
+     */
+    public function attemptRefresh()
+    {
+        $refreshToken = $this->request->cookie(self::REFRESH_TOKEN);
+
+        return $this->proxy('refresh_token', [
+            'refresh_token' => $refreshToken
+        ]);
+    }
+
+    /**
+     * Proxy a request to the OAuth server.
+     * 
+     * @param string $grantType what type of grant type should be proxied
+     * @param array $data the data to send to the server
+     */
+    public function proxy($grantType, array $data = [])
+    {
+        $data = array_merge($data, [
+            'client_id'     => env('PASSWORD_CLIENT_ID'),
+            'client_secret' => env('PASSWORD_CLIENT_SECRET'),
+            'grant_type'    => $grantType
+        ]);
+
+        $response = $this->apiConsumer->post('/oauth/token', $data);
+
+        if (!$response->isSuccessful()) {
+            throw new InvalidCredentialsException();
+        }
+
+        $data = json_decode($response->getContent());
+
+        // Create a refresh token cookie
+        $this->cookie->queue(
+            self::REFRESH_TOKEN,
+            $data->refresh_token,
+            864000, // 10 days
+            null,
+            null,
+            false,
+            true // HttpOnly
+        );
+
+        return [
+            'access_token' => $data->access_token,
+            'expires_in' => $data->expires_in
+        ];
+    }
+
+    /**
+     * Logs out the user. We revoke access token and refresh token. 
+     * Also instruct the client to forget the refresh cookie.
+     */
+    public function logout()
+    {
+        $accessToken = $this->auth->user()->token();
+
+        $refreshToken = $this->db
+            ->table('oauth_refresh_tokens')
+            ->where('access_token_id', $accessToken->id)
+            ->update([
+                'revoked' => true
+            ]);
+
+        $accessToken->revoke();
+
+        $this->cookie->queue($this->cookie->forget(self::REFRESH_TOKEN));
+    }
+}
diff --git a/infrastructure/Auth/Middleware/AccessTokenChecker.php b/infrastructure/Auth/Middleware/AccessTokenChecker.php
new file mode 100644
index 0000000..f79f5cb
--- /dev/null
+++ b/infrastructure/Auth/Middleware/AccessTokenChecker.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Infrastructure\Auth\Middleware;
+
+use Closure;
+use Illuminate\Foundation\Application;
+use Illuminate\Auth\Middleware\Authenticate;
+use Illuminate\Auth\AuthenticationException;
+use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
+
+class AccessTokenChecker
+{
+    private $app;
+
+    private $oAuthMiddleware;
+
+    public function __construct(
+        Application $app,
+        Authenticate $authenticate
+    ) {
+        $this->app = $app;
+        $this->authenticate = $authenticate;
+    }
+
+    public function handle($request, Closure $next, $scopesString = null)
+    {
+        if ($this->app->environment() !== 'testing') {
+            try {
+                return $this->authenticate->handle($request, $next, 'api');
+            } catch (AuthenticationException $e) {
+                throw new UnauthorizedHttpException('Challenge');
+            }
+        }
+
+        return $next($request);
+    }
+}
diff --git a/infrastructure/Auth/Requests/LoginRequest.php b/infrastructure/Auth/Requests/LoginRequest.php
new file mode 100644
index 0000000..5c5a3bb
--- /dev/null
+++ b/infrastructure/Auth/Requests/LoginRequest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Infrastructure\Auth\Requests;
+
+use Infrastructure\Http\ApiRequest;
+
+class LoginRequest extends ApiRequest
+{
+    public function authorize()
+    {
+        return true;
+    }
+
+    public function rules()
+    {
+        return [
+            'email'    => 'required|email',
+            'password' => 'required'
+        ];
+    }
+}
diff --git a/infrastructure/Auth/routes_protected.php b/infrastructure/Auth/routes_protected.php
new file mode 100644
index 0000000..0fe814f
--- /dev/null
+++ b/infrastructure/Auth/routes_protected.php
@@ -0,0 +1,3 @@
+<?php
+
+$router->post('/logout', 'LoginController@logout');
\ No newline at end of file
diff --git a/infrastructure/Auth/routes_public.php b/infrastructure/Auth/routes_public.php
new file mode 100644
index 0000000..79f5b51
--- /dev/null
+++ b/infrastructure/Auth/routes_public.php
@@ -0,0 +1,4 @@
+<?php
+
+$router->post('/login', 'LoginController@login');
+$router->post('/login/refresh', 'LoginController@refresh');
\ No newline at end of file
diff --git a/infrastructure/Console/Kernel.php b/infrastructure/Console/Kernel.php
new file mode 100644
index 0000000..dffc73a
--- /dev/null
+++ b/infrastructure/Console/Kernel.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Infrastructure\Console;
+
+use Api\Users\Console\AddUserCommand;
+use Illuminate\Console\Scheduling\Schedule;
+use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
+
+class Kernel extends ConsoleKernel
+{
+    /**
+     * The Artisan commands provided by your application.
+     *
+     * @var array
+     */
+    protected $commands = [
+        AddUserCommand::class
+    ];
+
+    /**
+     * Define the application's command schedule.
+     *
+     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
+     * @return void
+     */
+    protected function schedule(Schedule $schedule)
+    {
+        // $schedule->command('inspire')
+        //          ->hourly();
+    }
+}
diff --git a/infrastructure/Database/Eloquent/Model.php b/infrastructure/Database/Eloquent/Model.php
new file mode 100644
index 0000000..a7781f7
--- /dev/null
+++ b/infrastructure/Database/Eloquent/Model.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Infrastructure\Database\Eloquent;
+
+use Illuminate\Database\Eloquent\Model as BaseModel;
+
+abstract class Model extends BaseModel
+{
+}
diff --git a/infrastructure/Database/Eloquent/Repository.php b/infrastructure/Database/Eloquent/Repository.php
new file mode 100644
index 0000000..a8b2c0b
--- /dev/null
+++ b/infrastructure/Database/Eloquent/Repository.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Infrastructure\Database\Eloquent;
+
+use Optimus\Genie\Repository as BaseRepository;
+
+abstract class Repository extends BaseRepository
+{
+}
diff --git a/infrastructure/Events/Event.php b/infrastructure/Events/Event.php
new file mode 100644
index 0000000..2f19ea9
--- /dev/null
+++ b/infrastructure/Events/Event.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Infrastructure\Events;
+
+abstract class Event
+{
+    //
+}
diff --git a/infrastructure/Exceptions/Handler.php b/infrastructure/Exceptions/Handler.php
new file mode 100644
index 0000000..af48a29
--- /dev/null
+++ b/infrastructure/Exceptions/Handler.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Infrastructure\Exceptions;
+
+use Exception;
+use Illuminate\Validation\ValidationException;
+use Illuminate\Auth\Access\AuthorizationException;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
+use Symfony\Component\HttpKernel\Exception\HttpException;
+use Optimus\Heimdal\ExceptionHandler;
+
+class Handler extends ExceptionHandler
+{
+    /**
+     * A list of the exception types that should not be reported.
+     *
+     * @var array
+     */
+    protected $dontReport = [
+        AuthorizationException::class,
+        HttpException::class,
+        ModelNotFoundException::class,
+        ValidationException::class,
+    ];
+
+    /**
+     * Report or log an exception.
+     *
+     * This is a great spot to send exceptions to Sentry, Bugsnag, etc.
+     *
+     * @param  \Exception  $e
+     * @return void
+     */
+    public function report(Exception $e)
+    {
+        parent::report($e);
+    }
+
+    /**
+     * Render an exception into an HTTP response.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Exception  $e
+     * @return \Illuminate\Http\Response
+     */
+    public function render($request, Exception $e)
+    {
+        return parent::render($request, $e);
+    }
+}
diff --git a/infrastructure/Http/ApiRequest.php b/infrastructure/Http/ApiRequest.php
new file mode 100644
index 0000000..0183bb4
--- /dev/null
+++ b/infrastructure/Http/ApiRequest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Infrastructure\Http;
+
+use Illuminate\Contracts\Validation\Validator;
+use Illuminate\Foundation\Http\FormRequest;
+use Symfony\Component\HttpKernel\Exception\HttpException;
+use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
+
+abstract class ApiRequest extends FormRequest
+{
+    protected function failedValidation(Validator $validator)
+    {
+        throw new UnprocessableEntityHttpException($validator->errors()->toJson());
+    }
+
+    protected function failedAuthorization()
+    {
+        throw new HttpException(403);
+    }
+}
diff --git a/infrastructure/Http/Controller.php b/infrastructure/Http/Controller.php
new file mode 100644
index 0000000..aa567b9
--- /dev/null
+++ b/infrastructure/Http/Controller.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Infrastructure\Http;
+
+use Illuminate\Foundation\Validation\ValidatesRequests;
+use Optimus\Bruno\LaravelController;
+
+abstract class Controller extends LaravelController
+{
+}
diff --git a/infrastructure/Http/Kernel.php b/infrastructure/Http/Kernel.php
new file mode 100644
index 0000000..d74c8b3
--- /dev/null
+++ b/infrastructure/Http/Kernel.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Infrastructure\Http;
+
+use Illuminate\Foundation\Http\Kernel as HttpKernel;
+
+class Kernel extends HttpKernel
+{
+    /**
+     * The application's global HTTP middleware stack.
+     *
+     * These middleware are run during every request to your application.
+     *
+     * @var array
+     */
+    protected $middleware = [
+        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
+        \Infrastructure\Http\Middleware\EncryptCookies::class,
+        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
+        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
+    ];
+
+    /**
+     * The application's route middleware groups.
+     *
+     * @var array
+     */
+    protected $middlewareGroups = [
+
+    ];
+
+    /**
+     * The application's route middleware.
+     *
+     * These middleware may be assigned to groups or used individually.
+     *
+     * @var array
+     */
+    protected $routeMiddleware = [
+        'auth' => \Infrastructure\Auth\Middleware\AccessTokenChecker::class,
+        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
+        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
+        'can' => \Illuminate\Auth\Middleware\Authorize::class,
+        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
+        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
+    ];
+}
diff --git a/infrastructure/Http/Middleware/EncryptCookies.php b/infrastructure/Http/Middleware/EncryptCookies.php
new file mode 100644
index 0000000..80b8da3
--- /dev/null
+++ b/infrastructure/Http/Middleware/EncryptCookies.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Infrastructure\Http\Middleware;
+
+use Illuminate\Cookie\Middleware\EncryptCookies as BaseEncrypter;
+
+class EncryptCookies extends BaseEncrypter
+{
+    /**
+     * The names of the cookies that should not be encrypted.
+     *
+     * @var array
+     */
+    protected $except = [
+        //
+    ];
+}
diff --git a/infrastructure/Http/RouteServiceProvider.php b/infrastructure/Http/RouteServiceProvider.php
new file mode 100644
index 0000000..a17d253
--- /dev/null
+++ b/infrastructure/Http/RouteServiceProvider.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Infrastructure\Http;
+
+use Illuminate\Routing\Router;
+use Optimus\Api\System\RouteServiceProvider as ServiceProvider;
+
+class RouteServiceProvider extends ServiceProvider
+{
+    /**
+     * Define your route model bindings, pattern filters, etc.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $router = $this->app->make(Router::class);
+
+        $router->pattern('id', '[0-9]+');
+
+        parent::boot($router);
+    }
+}
diff --git a/infrastructure/Testing/TestCase.php b/infrastructure/Testing/TestCase.php
new file mode 100644
index 0000000..1770e1b
--- /dev/null
+++ b/infrastructure/Testing/TestCase.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Infrastructure\Testing;
+
+use Illuminate\Foundation\Testing\TestCase as LaravelTestCase;
+
+class TestCase extends LaravelTestCase
+{
+    /**
+     * The base URL to use while testing the application.
+     *
+     * @var string
+     */
+    protected $baseUrl = 'http://localhost';
+
+    /**
+     * Creates the application.
+     *
+     * @return \Illuminate\Foundation\Application
+     */
+    public function createApplication()
+    {
+        $app = require __DIR__.'/../../bootstrap/app.php';
+
+        $app->make(\Illuminate\Contracts\Console\Kernel::class)->bootstrap();
+
+        return $app;
+    }
+}
diff --git a/infrastructure/Testing/bootstrap.php b/infrastructure/Testing/bootstrap.php
new file mode 100644
index 0000000..f0aea64
--- /dev/null
+++ b/infrastructure/Testing/bootstrap.php
@@ -0,0 +1,5 @@
+<?php
+
+require_once __DIR__ . '/../../bootstrap/autoload.php';
+
+// bootstrap testing, e.g. seeding database etc.
diff --git a/infrastructure/Validation/resources/lang/en/validation.php b/infrastructure/Validation/resources/lang/en/validation.php
new file mode 100644
index 0000000..208281b
--- /dev/null
+++ b/infrastructure/Validation/resources/lang/en/validation.php
@@ -0,0 +1,113 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines contain the default error messages used by
+    | the validator class. Some of these rules have multiple versions such
+    | as the size rules. Feel free to tweak each of these messages here.
+    |
+    */
+
+    'accepted'             => 'The :attribute must be accepted.',
+    'active_url'           => 'The :attribute is not a valid URL.',
+    'after'                => 'The :attribute must be a date after :date.',
+    'alpha'                => 'The :attribute may only contain letters.',
+    'alpha_dash'           => 'The :attribute may only contain letters, numbers, and dashes.',
+    'alpha_num'            => 'The :attribute may only contain letters and numbers.',
+    'array'                => 'The :attribute must be an array.',
+    'before'               => 'The :attribute must be a date before :date.',
+    'between'              => [
+        'numeric' => 'The :attribute must be between :min and :max.',
+        'file'    => 'The :attribute must be between :min and :max kilobytes.',
+        'string'  => 'The :attribute must be between :min and :max characters.',
+        'array'   => 'The :attribute must have between :min and :max items.',
+    ],
+    'boolean'              => 'The :attribute must be true or false.',
+    'confirmed'            => 'The :attribute confirmation does not match.',
+    'date'                 => 'The :attribute is not a valid date.',
+    'date_format'          => 'The :attribute does not match the format :format.',
+    'different'            => 'The :attribute and :other must be different.',
+    'digits'               => 'The :attribute must be :digits digits.',
+    'digits_between'       => 'The :attribute must be between :min and :max digits.',
+    'distinct'             => 'The :attribute has a duplicate value.',
+    'email'                => 'The :attribute must be a valid email address.',
+    'exists'               => 'The selected :attribute is invalid.',
+    'filled'               => 'The :attribute is required.',
+    'image'                => 'The :attribute must be an image.',
+    'in'                   => 'The selected :attribute is invalid.',
+    'in_array'             => 'The :attribute does not exist in :other.',
+    'integer'              => 'The :attribute must be an integer.',
+    'ip'                   => 'The :attribute must be a valid IP address.',
+    'json'                 => 'The :attribute must be a valid JSON string.',
+    'max'                  => [
+        'numeric' => 'The :attribute may not be greater than :max.',
+        'file'    => 'The :attribute may not be greater than :max kilobytes.',
+        'string'  => 'The :attribute may not be greater than :max characters.',
+        'array'   => 'The :attribute may not have more than :max items.',
+    ],
+    'mimes'                => 'The :attribute must be a file of type: :values.',
+    'min'                  => [
+        'numeric' => 'The :attribute must be at least :min.',
+        'file'    => 'The :attribute must be at least :min kilobytes.',
+        'string'  => 'The :attribute must be at least :min characters.',
+        'array'   => 'The :attribute must have at least :min items.',
+    ],
+    'not_in'               => 'The selected :attribute is invalid.',
+    'numeric'              => 'The :attribute must be a number.',
+    'present'              => 'The :attribute must be present.',
+    'regex'                => 'The :attribute format is invalid.',
+    'required'             => 'The :attribute is required.',
+    'required_if'          => 'The :attribute is required when :other is :value.',
+    'required_unless'      => 'The :attribute is required unless :other is in :values.',
+    'required_with'        => 'The :attribute is required when :values is present.',
+    'required_with_all'    => 'The :attribute is required when :values is present.',
+    'required_without'     => 'The :attribute is required when :values is not present.',
+    'required_without_all' => 'The :attribute is required when none of :values are present.',
+    'same'                 => 'The :attribute and :other must match.',
+    'size'                 => [
+        'numeric' => 'The :attribute must be :size.',
+        'file'    => 'The :attribute must be :size kilobytes.',
+        'string'  => 'The :attribute must be :size characters.',
+        'array'   => 'The :attribute must contain :size items.',
+    ],
+    'string'               => 'The :attribute must be a string.',
+    'timezone'             => 'The :attribute must be a valid zone.',
+    'unique'               => 'The :attribute has already been taken.',
+    'url'                  => 'The :attribute format is invalid.',
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify custom validation messages for attributes using the
+    | convention "attribute.rule" to name the lines. This makes it quick to
+    | specify a specific custom language line for a given attribute rule.
+    |
+    */
+
+    'custom' => [
+        'attribute-name' => [
+            'rule-name' => 'custom-message',
+        ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Attributes
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used to swap attribute place-holders
+    | with something more reader friendly such as E-Mail Address instead
+    | of "email". This simply helps us make messages a little cleaner.
+    |
+    */
+
+    'attributes' => [],
+
+];
diff --git a/infrastructure/Version.php b/infrastructure/Version.php
new file mode 100644
index 0000000..9ca7941
--- /dev/null
+++ b/infrastructure/Version.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Infrastructure;
+
+class Version
+{
+    public static function getGitTag()
+    {
+        $versionFile = base_path('version.txt');
+        return file_exists($versionFile) ? file_get_contents($versionFile) : exec('git describe --tags');
+    }
+}
-- 
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