Replace tuupola/slim-jwt-auth with our fork

slim-jwt-auth currently does not support firebase/php-jwt 6.
This raise critical security alerts when our containers are scanned
(namely CVE-2021-46743).

There is an issue on the slim-jwt-auth repo for this, which I
have commented on, asking for further info:

tuupola/slim-jwt-auth#217

In the meantime, I have taken a copy of the key part of that
package and reworked it slightly so that it functions with
php-jwt v6. I also removed a lot of the options we're not
using.

The existing middleware which functions with slim-jwt-auth is
commented out but still present. To reinstate that package,
we just need to remove this commit.

service-admin/composer.json

@@ -24,7 +24,13 @@
         "ministryofjustice/opg-lpa-datamodels": "^13.3",
         "php-http/guzzle6-adapter": "^2.0.2",
         "slim/flash": "^0.4.0",
-        "tuupola/slim-jwt-auth": "^3.5.2",
+
+        "firebase/php-jwt": "^6.0",
+        "psr/http-message": "^1.0",
+        "tuupola/http-factory": "^0.4.0|^1.0.2",
+        "tuupola/callable-handler": "^0.3.0|^0.4.0|^1.0",
+        "psr/http-server-middleware": "^1.0",
+
         "laminas/laminas-authentication": "^2.8",
         "laminas/laminas-cache": "^3.1.2",
         "laminas/laminas-cache-storage-adapter-memory": "2.0",

service-admin/config/autoload/mezzio.global.php

@@ -25,14 +25,17 @@
 
     'api_base_uri' => getenv('OPG_LPA_ENDPOINTS_API') ?: null,
 
-    'admin_accounts' => (getenv('OPG_LPA_COMMON_ADMIN_ACCOUNTS') ? explode(',', getenv('OPG_LPA_COMMON_ADMIN_ACCOUNTS')) : []),
+    'admin_accounts' => (
+        getenv('OPG_LPA_COMMON_ADMIN_ACCOUNTS') ?
+            explode(',', getenv('OPG_LPA_COMMON_ADMIN_ACCOUNTS')) : []
+    ),
 
     'jwt' => [
         'secret'    => getenv('OPG_LPA_ADMIN_JWT_SECRET') ?: null,
         'path'      => '/',
         'header'    => 'lpa-admin',
         'cookie'    => 'lpa-admin',
-        'ttl'       => 60 * 15, //  15 minutes
+        'ttl'       => 60 * 15, // 15 minutes
         'algo'      => 'HS256',
     ],
 

service-admin/config/pipeline.php

@@ -1,5 +1,9 @@
 <?php
 
+/**
+ * Setup middleware pipeline:
+ */
+
 declare(strict_types=1);
 
 use App\Middleware;
@@ -17,10 +21,7 @@
 use Mezzio\Router\Middleware\RouteMiddleware;
 use Laminas\Stratigility\Middleware\ErrorHandler;
 
-/**
- * Setup middleware pipeline:
- */
-return function (Application $app, MiddlewareFactory $factory, ContainerInterface $container) : void {
+return function (Application $app, MiddlewareFactory $factory, ContainerInterface $container): void {
     // The error handler should be the first (most outer) middleware to catch
     // all Exceptions.
     $app->pipe(ErrorHandler::class);
@@ -60,7 +61,8 @@
 
     //  Set up the custom middleware to handle sessions and authorization
     $app->pipe(Middleware\Session\SessionMiddleware::class);
-    $app->pipe(JwtAuthentication::class);
+    //$app->pipe(JwtAuthentication::class);
+    $app->pipe(Middleware\Session\JwtMiddleware::class);
     $app->pipe(Middleware\Authorization\AuthorizationMiddleware::class);
     $app->pipe(Middleware\Session\CsrfMiddleware::class);
     $app->pipe(Middleware\Flash\SlimFlashMiddleware::class);

service-admin/src/App/src/ConfigProvider.php

@@ -5,7 +5,7 @@
 namespace App;
 
 use App\Logging\LoggingErrorListenerDelegatorFactory;
-use Tuupola\Middleware\JwtAuthentication;
+//use Tuupola\Middleware\JwtAuthentication;
 use Laminas\Stratigility\Middleware\ErrorHandler;
 
 /**
@@ -64,8 +64,10 @@ public function getDependencies(): array
                 Handler\UserFindHandler::class => Handler\UserFindHandlerFactory::class,
 
                 //  Middleware
-                JwtAuthentication::class =>
-                    Middleware\Session\JwtAuthenticationFactory::class,
+                //JwtAuthentication::class =>
+                //    Middleware\Session\JwtAuthenticationFactory::class,
+                Middleware\Session\JwtMiddleware::class =>
+                    Middleware\Session\JwtMiddlewareFactory::class,
                 Middleware\Authorization\AuthorizationMiddleware::class =>
                     Middleware\Authorization\AuthorizationMiddlewareFactory::class,
                 Middleware\Session\SessionMiddleware::class =>

service-admin/src/App/src/Middleware/Authorization/AuthorizationMiddleware.php

@@ -90,23 +90,23 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
         $roles = ['guest'];
 
         if (is_string($token)) {
-            //  Attempt to get a user with the token value
+            // Attempt to get a user with the token value
             $result = $this->authenticationService->verify($token);
 
             $identity = $result->getIdentity();
 
             if ($identity instanceof Identity) {
-                //  Try to get the user details
+                // Try to get the user details
                 $user = $this->userService->fetch($identity->getUserId() ?? '');
 
-                //  There is something wrong with the user here so throw an exception
+                // There is something wrong with the user here so throw an exception
                 if (!$user instanceof User) {
                     throw new Exception('Can not find a user for ID ' . $identity->getUserId());
                 }
 
                 $roles[] = 'authenticated-user';
             } else {
-                //  Clear the bad token
+                // Clear the bad token
                 $this->clearTokenData();
             }
         }
@@ -123,7 +123,7 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
         //  Check each role to see if the user has access to the route
         foreach ($roles as $role) {
             if ($this->rbac->hasRole($role) && $this->rbac->isGranted($role, $matchedRoute->getName())) {
-                //  Catch any unauthorized exceptions and trigger a sign out if required
+                // Catch any unauthorized exceptions and trigger a sign out if required
                 try {
                     return $handler->handle($request->withAttribute('user', $user));
                 } catch (ApiException $ae) {
@@ -136,7 +136,7 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
             }
         }
 
-        //  If there is no user (not logged in) then redirect to the sign in screen
+        // If there is no user (not logged in) then redirect to the sign in screen
         if (is_null($user)) {
             return new RedirectResponse($this->urlHelper->generate('sign.in'));
         }