Implementation of the backend for the OAuth2 clients management

api/modules/oauth/controllers/IdentityController.php

@@ -0,0 +1,39 @@
+<?php
+namespace api\modules\oauth\controllers;
+
+use api\controllers\Controller;
+use api\modules\oauth\models\IdentityInfo;
+use common\rbac\Permissions as P;
+use Yii;
+use yii\filters\AccessControl;
+use yii\helpers\ArrayHelper;
+
+class IdentityController extends Controller {
+
+    public function behaviors(): array {
+        return ArrayHelper::merge(Controller::behaviors(), [
+            'access' => [
+                'class' => AccessControl::class,
+                'rules' => [
+                    [
+                        'actions' => ['index'],
+                        'allow' => true,
+                        'roles' => [P::OBTAIN_ACCOUNT_INFO],
+                        'roleParams' => function() {
+                            /** @noinspection NullPointerExceptionInspection */
+                            return [
+                                'accountId' => Yii::$app->user->getIdentity()->getAccount()->id,
+                            ];
+                        },
+                    ],
+                ],
+            ],
+        ]);
+    }
+
+    public function actionIndex(): array {
+        /** @noinspection NullPointerExceptionInspection */
+        return (new IdentityInfo(Yii::$app->user->getIdentity()->getAccount()))->info();
+    }
+
+}