OV-8: protect routing

backend/package.json

@@ -34,13 +34,14 @@
         "convict": "6.2.4",
         "dotenv": "16.4.5",
         "fastify": "4.28.1",
+        "fastify-plugin": "4.5.1",
+        "jose": "5.7.0",
         "knex": "3.1.0",
         "objection": "3.1.4",
         "pg": "8.12.0",
         "pino": "9.3.2",
         "pino-pretty": "10.3.1",
         "shared": "*",
-        "swagger-jsdoc": "6.2.8",
-        "jose": "5.7.0"
+        "swagger-jsdoc": "6.2.8"
     }
 }

backend/src/bundles/users/user.repository.ts

@@ -10,8 +10,10 @@ class UserRepository implements Repository {
         this.userModel = userModel;
     }
 
-    public find(): ReturnType<Repository['find']> {
-        return Promise.resolve(null);
+    public async find(userId: number): Promise<UserEntity | null> {
+        const user = await this.userModel.query().findById(userId).execute();
+
+        return user ? UserEntity.initialize(user) : null;
     }
 
     public async findByEmail(email: string): Promise<UserEntity | null> {

backend/src/bundles/users/user.service.ts

@@ -16,8 +16,8 @@ class UserService implements Service {
         this.userRepository = userRepository;
     }
 
-    public find(): ReturnType<Service['find']> {
-        return Promise.resolve(null);
+    public async find(userId: number): Promise<UserEntity | null> {
+        return await this.userRepository.find(userId);
     }
 
     public async findByEmail(email: string): Promise<UserEntity | null> {

backend/src/bundles/users/users.ts

@@ -16,6 +16,7 @@ export {
     type UserSignUpRequestDto,
     type UserSignUpResponseDto,
 } from './types/types.js';
+export { type UserEntity } from './user.entity.js';
 export { UserModel } from './user.model.js';
 export {
     userSignInValidationSchema,

backend/src/common/constants/constants.ts

@@ -1 +1,2 @@
 export { USER_PASSWORD_SALT_ROUNDS } from './user.constants.js';
+export { WHITE_ROUTES } from './white-routes.constants.js';

backend/src/common/constants/white-routes.constants.ts

@@ -0,0 +1,14 @@
+import { ApiPath, AuthApiPath } from 'shared';
+
+const WHITE_ROUTES = [
+    {
+        path: `/api/v1${ApiPath.AUTH}${AuthApiPath.SIGN_IN}`,
+        method: 'POST',
+    },
+    {
+        path: `/api/v1${ApiPath.AUTH}${AuthApiPath.SIGN_UP}`,
+        method: 'POST',
+    },
+];
+
+export { WHITE_ROUTES };

backend/src/common/plugins/auth/auth-jwt.plugin.ts

@@ -0,0 +1,58 @@
+import fp from 'fastify-plugin';
+import { HttpCode, HttpError, HttpHeader } from 'shared';
+
+import { userService } from '~/bundles/users/users.js';
+import { tokenService } from '~/common/services/services.js';
+
+import { ErrorMessage, Hook } from './enums/enums.js';
+import { type Route } from './types/types.js';
+import { isRouteInWhiteList } from './utils/utils.js';
+
+type Options = {
+    routesWhiteList: Route[];
+};
+
+const authenticateJWT = fp<Options>((fastify, { routesWhiteList }, done) => {
+    fastify.decorateRequest('user', null);
+
+    fastify.addHook(Hook.PRE_HANDLER, async (request) => {
+        if (isRouteInWhiteList(routesWhiteList, request)) {
+            return;
+        }
+
+        const authHeader = request.headers[HttpHeader.AUTHORIZATION];
+
+        if (!authHeader) {
+            throw new HttpError({
+                message: ErrorMessage.MISSING_TOKEN,
+                status: HttpCode.UNAUTHORIZED,
+            });
+        }
+
+        const [, token] = authHeader.split(' ');
+
+        const userId = await tokenService.getUserIdFromToken(token as string);
+
+        if (!userId) {
+            throw new HttpError({
+                message: ErrorMessage.INVALID_TOKEN,
+                status: HttpCode.UNAUTHORIZED,
+            });
+        }
+
+        const user = await userService.find(userId);
+
+        if (!user) {
+            throw new HttpError({
+                message: ErrorMessage.MISSING_USER,
+                status: HttpCode.BAD_REQUEST,
+            });
+        }
+
+        request.user = user;
+    });
+
+    done();
+});
+
+export { authenticateJWT };

backend/src/common/plugins/auth/enums/enums.ts

@@ -0,0 +1,2 @@
+export { ErrorMessage } from './error-message.enum.js';
+export { Hook } from './hook.enum.js';

backend/src/common/plugins/auth/enums/error-message.enum.ts

@@ -0,0 +1,7 @@
+const ErrorMessage = {
+    MISSING_TOKEN: 'You are not logged in',
+    INVALID_TOKEN: 'Token is no longer valid. Please log in again.',
+    MISSING_USER: 'User with this id does not exist.',
+} as const;
+
+export { ErrorMessage };

backend/src/common/plugins/auth/enums/hook.enum.ts

@@ -0,0 +1,5 @@
+const Hook = {
+    PRE_HANDLER: 'preHandler',
+} as const;
+
+export { Hook };

backend/src/common/plugins/auth/types/route.type.ts

@@ -0,0 +1,6 @@
+type Route = {
+    path: string;
+    method: 'GET' | 'POST' | 'PUT' | 'PATCH' | 'DELETE';
+};
+
+export { type Route };

backend/src/common/plugins/auth/types/types.ts

@@ -0,0 +1 @@
+export { type Route } from './route.type.js';

backend/src/common/plugins/auth/utils/check-white-routes.util.ts

@@ -0,0 +1,15 @@
+import { type FastifyRequest } from 'fastify';
+
+import { type Route } from '../types/types.js';
+
+const isRouteInWhiteList = (
+    routesWhiteList: Route[],
+    request: FastifyRequest,
+): boolean => {
+    return routesWhiteList.some(
+        (route) =>
+            route.path === request.url && route.method === request.method,
+    );
+};
+
+export { isRouteInWhiteList };

backend/src/common/plugins/auth/utils/utils.ts

@@ -0,0 +1 @@
+export { isRouteInWhiteList } from './check-white-routes.util.js';

backend/src/common/plugins/plugins.ts

@@ -0,0 +1 @@
+export { authenticateJWT } from './auth/auth-jwt.plugin.js';

backend/src/common/server-application/base-server-app.ts

@@ -22,6 +22,8 @@ import {
     type ValidationSchema,
 } from '~/common/types/types.js';
 
+import { WHITE_ROUTES } from '../constants/constants.js';
+import { authenticateJWT } from '../plugins/plugins.js';
 import {
     type ServerApp,
     type ServerAppApi,
@@ -122,6 +124,12 @@ class BaseServerApp implements ServerApp {
         );
     }
 
+    private registerPlugins(): void {
+        this.app.register(authenticateJWT, {
+            routesWhiteList: WHITE_ROUTES,
+        });
+    }
+
     private initValidationCompiler(): void {
         this.app.setValidatorCompiler(
             ({ schema }: { schema: ValidationSchema }) => {
@@ -200,6 +208,8 @@ class BaseServerApp implements ServerApp {
 
         await this.initMiddlewares();
 
+        this.registerPlugins();
+
         this.initValidationCompiler();
 
         this.initErrorHandler();

backend/src/common/types/fastify.d.ts

@@ -0,0 +1,9 @@
+import 'fastify';
+
+import { type UserEntity } from '~/bundles/users/users.js';
+
+declare module 'fastify' {
+    interface FastifyRequest {
+        user: UserEntity;
+    }
+}

backend/src/common/types/repository.type.ts

@@ -1,5 +1,5 @@
 type Repository<T = unknown> = {
-    find(): Promise<T>;
+    find(id: number): Promise<T | null>;
     findAll(): Promise<T[]>;
     create(payload: unknown): Promise<T>;
     update(): Promise<T>;

backend/src/common/types/service.type.ts

@@ -1,5 +1,5 @@
 type Service<T = unknown> = {
-    find(): Promise<T>;
+    find(id: number): Promise<T | null>;
     findAll(): Promise<{
         items: T[];
     }>;

shared/src/framework/http/enums/http-code.enum.ts

@@ -4,6 +4,8 @@ const HttpCode = {
     BAD_REQUEST: 400,
     UNPROCESSED_ENTITY: 422,
     INTERNAL_SERVER_ERROR: 500,
+    UNAUTHORIZED: 401,
+    FORBIDDEN: 403,
 } as const;
 
 export { HttpCode };