|
| 1 | +import jwt |
| 2 | +from datetime import datetime, timedelta |
| 3 | +from typing import Optional |
| 4 | +from fastapi import Depends, HTTPException, status |
| 5 | +from fastapi.security import OAuth2PasswordBearer |
| 6 | +from starlette.authentication import requires |
| 7 | +from cotlette.contrib.auth.users.models import UserModel |
| 8 | + |
| 9 | + |
| 10 | +# Настройки JWT |
| 11 | +SECRET_KEY = "your-secret-key-here" |
| 12 | +ALGORITHM = "HS256" |
| 13 | +ACCESS_TOKEN_EXPIRE_MINUTES = 30 |
| 14 | + |
| 15 | +oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token") |
| 16 | + |
| 17 | + |
| 18 | +def create_access_token(data: dict, expires_delta: Optional[timedelta] = None): |
| 19 | + to_encode = data.copy() |
| 20 | + if expires_delta: |
| 21 | + expire = datetime.utcnow() + expires_delta |
| 22 | + else: |
| 23 | + expire = datetime.utcnow() + timedelta(minutes=15) |
| 24 | + to_encode.update({"exp": expire}) |
| 25 | + encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM) |
| 26 | + return encoded_jwt |
| 27 | + |
| 28 | + |
| 29 | +def verify_token(token: str): |
| 30 | + try: |
| 31 | + payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM]) |
| 32 | + email: str = payload.get("sub") |
| 33 | + if email is None: |
| 34 | + return None |
| 35 | + return email |
| 36 | + except jwt.PyJWTError: |
| 37 | + return None |
| 38 | + |
| 39 | + |
| 40 | +async def get_current_user(token: str = Depends(oauth2_scheme)): |
| 41 | + email = verify_token(token) |
| 42 | + if email is None: |
| 43 | + raise HTTPException( |
| 44 | + status_code=status.HTTP_401_UNAUTHORIZED, |
| 45 | + detail="Could not validate credentials", |
| 46 | + headers={"WWW-Authenticate": "Bearer"}, |
| 47 | + ) |
| 48 | + user = UserModel.objects.filter(email=email).first() |
| 49 | + if user is None: |
| 50 | + raise HTTPException(status_code=404, detail="User not found") |
| 51 | + return user |
| 52 | + |
| 53 | + |
| 54 | +async def get_current_active_user(current_user: UserModel = Depends(get_current_user)): |
| 55 | + if not current_user.is_active: |
| 56 | + raise HTTPException(status_code=400, detail="Inactive user") |
| 57 | + return current_user |
| 58 | + |
| 59 | + |
| 60 | +async def get_current_active_superuser(current_user: UserModel = Depends(get_current_user)): |
| 61 | + if not current_user.is_superuser: |
| 62 | + raise HTTPException( |
| 63 | + status_code=400, detail="The user doesn't have enough privileges" |
| 64 | + ) |
| 65 | + return current_user |
| 66 | + |
| 67 | + |
| 68 | +# Функции для работы с паролями (заглушки) |
| 69 | +async def hash_password(password: str) -> str: |
| 70 | + # В реальном приложении здесь должна быть хеширование пароля |
| 71 | + return password |
| 72 | + |
| 73 | + |
| 74 | +async def check_password(plain_password: str, hashed_password: str) -> bool: |
| 75 | + # В реальном приложении здесь должна быть проверка пароля |
| 76 | + return plain_password == hashed_password |
| 77 | + |
| 78 | + |
| 79 | +def generate_jwt(user_id: int) -> str: |
| 80 | + # Генерация JWT токена |
| 81 | + data = {"sub": str(user_id)} |
| 82 | + return create_access_token(data, timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)) |
| 83 | + |
| 84 | + |
| 85 | +# Дополнительные функции для различных способов аутентификации |
| 86 | +async def get_current_user_from_token(token: str): |
| 87 | + return await get_current_user(token) |
| 88 | + |
| 89 | + |
| 90 | +async def get_current_active_user_from_token(token: str): |
| 91 | + return await get_current_active_user(await get_current_user(token)) |
| 92 | + |
| 93 | + |
| 94 | +async def get_current_active_superuser_from_token(token: str): |
| 95 | + return await get_current_active_superuser(await get_current_user(token)) |
| 96 | + |
| 97 | + |
| 98 | +async def get_current_user_from_cookie(request): |
| 99 | + # Получение пользователя из cookie |
| 100 | + token = request.cookies.get("jwt") |
| 101 | + if token: |
| 102 | + return await get_current_user(token) |
| 103 | + return None |
| 104 | + |
| 105 | + |
| 106 | +async def get_current_active_user_from_cookie(request): |
| 107 | + user = await get_current_user_from_cookie(request) |
| 108 | + if user: |
| 109 | + return await get_current_active_user(user) |
| 110 | + return None |
| 111 | + |
| 112 | + |
| 113 | +async def get_current_active_superuser_from_cookie(request): |
| 114 | + user = await get_current_user_from_cookie(request) |
| 115 | + if user: |
| 116 | + return await get_current_active_superuser(user) |
| 117 | + return None |
| 118 | + |
| 119 | + |
| 120 | +async def get_current_user_from_header(request): |
| 121 | + # Получение пользователя из заголовка |
| 122 | + auth_header = request.headers.get("Authorization") |
| 123 | + if auth_header and auth_header.startswith("Bearer "): |
| 124 | + token = auth_header.split(" ")[1] |
| 125 | + return await get_current_user(token) |
| 126 | + return None |
| 127 | + |
| 128 | + |
| 129 | +async def get_current_active_user_from_header(request): |
| 130 | + user = await get_current_user_from_header(request) |
| 131 | + if user: |
| 132 | + return await get_current_active_user(user) |
| 133 | + return None |
| 134 | + |
| 135 | + |
| 136 | +async def get_current_active_superuser_from_header(request): |
| 137 | + user = await get_current_user_from_header(request) |
| 138 | + if user: |
| 139 | + return await get_current_active_superuser(user) |
| 140 | + return None |
| 141 | + |
| 142 | + |
| 143 | +async def get_current_user_from_query(request): |
| 144 | + # Получение пользователя из query параметра |
| 145 | + token = request.query_params.get("token") |
| 146 | + if token: |
| 147 | + return await get_current_user(token) |
| 148 | + return None |
| 149 | + |
| 150 | + |
| 151 | +async def get_current_active_user_from_query(request): |
| 152 | + user = await get_current_user_from_query(request) |
| 153 | + if user: |
| 154 | + return await get_current_active_user(user) |
| 155 | + return None |
| 156 | + |
| 157 | + |
| 158 | +async def get_current_active_superuser_from_query(request): |
| 159 | + user = await get_current_user_from_query(request) |
| 160 | + if user: |
| 161 | + return await get_current_active_superuser(user) |
| 162 | + return None |
| 163 | + |
| 164 | + |
| 165 | +async def get_current_user_from_body(request): |
| 166 | + # Получение пользователя из body |
| 167 | + body = await request.json() |
| 168 | + token = body.get("token") |
| 169 | + if token: |
| 170 | + return await get_current_user(token) |
| 171 | + return None |
| 172 | + |
| 173 | + |
| 174 | +async def get_current_active_user_from_body(request): |
| 175 | + user = await get_current_user_from_body(request) |
| 176 | + if user: |
| 177 | + return await get_current_active_user(user) |
| 178 | + return None |
| 179 | + |
| 180 | + |
| 181 | +async def get_current_active_superuser_from_body(request): |
| 182 | + user = await get_current_user_from_body(request) |
| 183 | + if user: |
| 184 | + return await get_current_active_superuser(user) |
| 185 | + return None |
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