сделал аутентификацию в апи

api/app/application/roles_repository.py

@@ -0,0 +1,27 @@
+from typing import Optional
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.domain.models.roles import Role
+
+
+class RolesRepository:
+    def __init__(self, db: AsyncSession) -> None:
+        self.db = db
+
+    async def get_by_id(self, role_id: int) -> Optional[Role]:
+        query = (
+            select(Role)
+            .filter_by(role_id=role_id)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()
+
+    async def get_by_title(self, title: str) -> Optional[Role]:
+        query = (
+            select(Role)
+            .filter_by(title=title)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()

api/app/application/statuses_repository.py

@@ -0,0 +1,27 @@
+from typing import Optional
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.domain.models.statuses import Status
+
+
+class StatusesRepository:
+    def __init__(self, db: AsyncSession) -> None:
+        self.db = db
+
+    async def get_by_id(self, status_id: int) -> Optional[Status]:
+        query = (
+            select(Status)
+            .filter_by(id=status_id)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()
+
+    async def get_by_title(self, title: str) -> Optional[Status]:
+        query = (
+            select(Status)
+            .filter_by(title=title)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()

api/app/application/users_repository.py

@@ -0,0 +1,38 @@
+from typing import Optional
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.domain.models.users import User
+
+
+class UsersRepository:
+    def __init__(self, db: AsyncSession) -> None:
+        self.db = db
+
+    async def get_by_id(self, user_id: int) -> Optional[User]:
+        query = (
+            select(User)
+            .filter_by(id=user_id)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()
+
+    async def get_by_login(self, login: str) -> Optional[User]:
+        query = (
+            select(User)
+            .filter_by(login=login)
+        )
+        result = await self.db.execute(query)
+        return result.scalars().first()
+
+    async def create(self, user: User) -> User:
+        self.db.add(user)
+        await self.db.commit()
+        await self.db.refresh(user)
+        return user
+
+    async def update(self, user: User) -> User:
+        await self.db.merge(user)
+        await self.db.commit()
+        return user

api/app/controllers/auth_router.py

@@ -0,0 +1,23 @@
+from fastapi import APIRouter, Depends, Response
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database.session import get_db
+from app.domain.entities.auth import LoginRequest, LoginResponse
+from app.infrastructure.auth_service import AuthService
+
+auth_router = APIRouter()
+
+
+@auth_router.post(
+    '/login/',
+    response_model=LoginResponse,
+    summary='User authentication',
+    description='Logs in the user and outputs the `access_token` ',
+)
+async def auth_user(
+        response: Response,
+        user_data: LoginRequest,
+        db: AsyncSession = Depends(get_db)
+):
+    auth_service = AuthService(db)
+    return await auth_service.authenticate_user(user_data)

api/app/core/constants.py

@@ -0,0 +1,9 @@
+class UserStatuses:
+    ACTIVE = 'active'
+    BLOCKED = 'blocked'
+
+
+class UserRoles:
+    STUDENT = 'student'
+    TEACHER = 'teacher'
+    ADMIN = 'root'

api/app/domain/entities/auth.py

@@ -0,0 +1,11 @@
+from pydantic import BaseModel, EmailStr, Field
+
+
+class LoginRequest(BaseModel):
+    login: str = Field(max_length=250)
+    password: str = Field(min_length=8)
+
+
+class LoginResponse(BaseModel):
+    user_id: int
+    access_token: str

api/app/domain/entities/users.py

@@ -0,0 +1,30 @@
+from datetime import date
+from typing import Optional
+
+from pydantic import BaseModel, EmailStr, Field
+
+
+class UserCreate(BaseModel):
+    first_name: str = Field(max_length=250)
+    last_name: str = Field(max_length=250)
+    patronymic: Optional[str] = Field(default=None, max_length=250)
+    login: str = Field(max_length=250)
+    email: Optional[EmailStr] = None
+    birthdate: date
+    password: str = Field(min_length=8)
+    role_id: Optional[int] = Field(default=None)
+    repeat_password: str = Field(min_length=8)
+
+
+class UserRead(BaseModel):
+    first_name: str
+    last_name: str
+    patronymic: Optional[str]
+    login: str
+    email: Optional[EmailStr]
+    birthdate: date
+    status_id: int
+    role_id: int
+
+    class Config:
+        orm_mode = True

api/app/domain/models/users.py

@@ -4,6 +4,7 @@ from typing import List
 from sqlalchemy import String, ForeignKey
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 from sqlalchemy.sql import func
+from werkzeug.security import check_password_hash, generate_password_hash
 
 from app.domain.models.base import PhotoAbstract
 
@@ -43,3 +44,9 @@ class User(PhotoAbstract):
         back_populates='student',
         foreign_keys=['student_id'],
     )
+
+    def check_password(self, password):
+        return check_password_hash(self.password_hash, password)
+
+    def set_password(self, password):
+        self.password_hash = generate_password_hash(password)

api/app/infrastructure/auth_service.py

@@ -0,0 +1,37 @@
+import datetime
+from typing import Optional
+
+import jwt
+from fastapi import HTTPException
+from sqlalchemy.ext.asyncio import AsyncSession
+from starlette import status
+
+from app.application.users_repository import UsersRepository
+from app.domain.entities.auth import LoginRequest
+from app.settings import get_auth_data
+
+
+class AuthService:
+    def __init__(self, db: AsyncSession):
+        self.users_repository = UsersRepository(db)
+
+    async def authenticate_user(self, user_data: LoginRequest) -> Optional[dict]:
+        user = await self.users_repository.get_by_login(user_data.login)
+        if user and user.check_password(user_data.password):
+            access_token = self.create_access_token({"user_id": user.id})
+            return {
+                "access_token": access_token,
+                "user_id": user.id
+            }
+
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Неправильный логин или пароль")
+
+    @staticmethod
+    def create_access_token(data: dict) -> str:
+        to_encode = data.copy()
+        expire = datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(days=30)
+        to_encode.update({"exp": expire})
+        auth_data = get_auth_data()
+        encode_jwt = jwt.encode(to_encode, auth_data['secret_key'], algorithm=auth_data['algorithm'])
+
+        return encode_jwt

api/app/infrastructure/dependencies.py

@@ -0,0 +1,47 @@
+import jwt
+from fastapi import Depends, HTTPException, Security
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+from sqlalchemy.ext.asyncio import AsyncSession
+from starlette import status
+
+from app.application.users_repository import UsersRepository
+from app.core.constants import UserStatuses
+from app.database.session import get_db
+from app.domain.models.users import User
+from app.settings import get_auth_data, Settings
+
+security = HTTPBearer()
+
+
+async def require_auth_user(
+        credentials: HTTPAuthorizationCredentials = Security(security),
+        db: AsyncSession = Depends(get_db)
+):
+    auth_data = get_auth_data()
+
+    try:
+        payload = jwt.decode(credentials.credentials, auth_data['secret_key'], algorithms=[auth_data['algorithm']])
+    except jwt.ExpiredSignatureError:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail='Ошибка авторизации')
+    except jwt.InvalidTokenError:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail='Ошибка авторизации')
+
+    user_id = payload.get('user_id')
+    if user_id is None:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail='Ошибка авторизации')
+
+    user = await UsersRepository(db).get_by_id(user_id)
+    if user is None:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail='Ошибка авторизации')
+
+    if user.status != UserStatuses.ACTIVE:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail='Ошибка авторизации')
+
+    return user
+
+
+def require_admin(user: User = Depends(require_auth_user)):
+    if user.role.title != Settings().root_role_name:
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail='Ошибка доступа')
+
+    return user

api/app/infrastructure/users_service.py

@@ -0,0 +1,102 @@
+import re
+from typing import Optional
+
+from fastapi import HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.application.roles_repository import RolesRepository
+from app.application.statuses_repository import StatusesRepository
+from app.application.users_repository import UsersRepository
+from app.domain.entities.users import UserCreate, UserRead
+from app.domain.models.users import User
+from app.settings import Settings
+
+
+class UsersService:
+    def __init__(self, db: AsyncSession):
+        self.users_repository = UsersRepository(db)
+        self.roles_repository = RolesRepository(db)
+        self.statuses_repository = StatusesRepository(db)
+        self.settings = Settings()
+
+    async def create_user(self, create_user_entity: UserCreate) -> Optional[UserRead]:
+        user = await self.users_repository.get_by_login(create_user_entity.login)
+        if user:
+            raise HTTPException(
+                status_code=status.HTTP_400_BAD_REQUEST,
+                detail='Пользователь с таким логином уже существует',
+            )
+
+        if create_user_entity.password != create_user_entity.repeat_password:
+            raise HTTPException(
+                status_code=status.HTTP_400_BAD_REQUEST,
+                detail='Пароли не совпадают',
+            )
+
+        if not self.is_strong_password(create_user_entity.repeat_password):
+            raise HTTPException(
+                status_code=status.HTTP_400_BAD_REQUEST,
+                detail='Пароль слишком слабый. Пароль должен содержать не менее 8 символов, включая хотя бы одну букву и одну цифру и один специальный символ.'
+            )
+
+        default_status = await self.statuses_repository.get_by_title(self.settings.default_status)
+        if default_status is None:
+            raise HTTPException(
+                status_code=status.HTTP_424_FAILED_DEPENDENCY,
+                detail='Статус по умолчанию не найден',
+            )
+
+        user = User(
+            first_name=create_user_entity.first_name,
+            last_name=create_user_entity.last_name,
+            patronymic=create_user_entity.patronymic,
+            login=create_user_entity.login,
+            email=create_user_entity.email,
+            birthdate=create_user_entity.birthdate,
+            status_id=default_status.status_id,
+        )
+
+        if create_user_entity.role_id is None:
+            default_role = await self.roles_repository.get_by_title(self.settings.default_role_name)
+            if default_role is None:
+                raise HTTPException(
+                    status_code=status.HTTP_424_FAILED_DEPENDENCY,
+                    detail='Роль по умолчанию не найдена',
+                )
+
+            user.role_id = default_role.id
+
+        else:
+            role = await self.roles_repository.get_by_id(create_user_entity.role_id)
+            if role is None:
+                raise HTTPException(
+                    status_code=status.HTTP_400_BAD_REQUEST,
+                    detail='Роль с таким ID не найдена',
+                )
+
+            user.role_id = role.id
+
+        user.set_password(create_user_entity.password)
+
+        user = await self.users_repository.create(user)
+
+        return UserRead.model_validate(user)
+
+    @staticmethod
+    def is_strong_password(password: str) -> bool:
+        if len(password) < 8:
+            return False
+
+        if not re.search(r'[A-Z]', password):
+            return False
+
+        if not re.search(r'[a-z]', password):
+            return False
+
+        if not re.search(r'\d', password):
+            return False
+
+        if not re.search(r'[!@#$%^&*(),.?\':{}|<>]', password):
+            return False
+
+        return True

api/app/main.py

@@ -0,0 +1,30 @@
+from fastapi import FastAPI
+from starlette.middleware.cors import CORSMiddleware
+
+from app.controllers.auth_router import auth_router
+from app.settings import Settings
+
+
+def start_app():
+    api_app = FastAPI()
+    settings = Settings()
+
+    api_app.add_middleware(
+        CORSMiddleware,
+        allow_origins=['*'],
+        allow_credentials=True,
+        allow_methods=['*'],
+        allow_headers=['*'],
+    )
+
+    api_app.include_router(auth_router, prefix=f'{settings.prefix}/auth', tags=['auth'])
+
+    return api_app
+
+
+app = start_app()
+
+
+@app.get('/', tags=['root'])
+async def root():
+    return {'message': 'Hello :з'}

api/app/settings.py

@@ -13,7 +13,21 @@ class Settings(BaseSettings):
     db_name: str = Field(alias='DB_NAME')
     db_schema: str = Field(alias='DB_SCHEMA')
 
+    secret_key: str = Field(alias='SECRET_KEY')
+    algorithm: str = Field(alias='ALGORITHM', default='sha256')
+
+    default_role_name: str = Field(alias='DEFAULT_ROLE_NAME', default='student')
+    root_role_name: str = Field(alias='ROOT_ROLE_NAME', default='root')
+    default_status: str = Field(alias='DEFAULT_STATUS', default='active')
+
+    prefix: str = Field(alias='PREFIX', default='/api/v1')
+
 
 def get_db_url() -> str:
     settings = Settings()
     return f'{settings.db_driver}://{settings.db_user}:{settings.db_password}@{settings.db_host}:{settings.db_port}/{settings.db_name}'
+
+
+def get_auth_data() -> dict:
+    settings = Settings()
+    return {'secret_key': settings.secret_key, 'algorithm': settings.algorithm}

api/req.txt

@@ -3,3 +3,6 @@ pydantic-settings==2.12.0
 alembic==1.17.2
 asyncpg==0.31.0
 greenlet==3.2.4
+werkzeug==3.1.3
+pyjwt==2.9.0
+fastapi==0.115.0