mirror of
https://github.com/StepanovPlaton/torrent_backend.git
synced 2026-04-03 20:30:38 +04:00
119 lines
3.7 KiB
Python
119 lines
3.7 KiB
Python
from typing import Annotated, Any
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from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
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from passlib.context import CryptContext
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from datetime import datetime, timedelta, timezone
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from fastapi import APIRouter, Depends, status, HTTPException
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from sqlalchemy.ext.asyncio import AsyncSession
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from pydantic import BaseModel
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from jose import JWTError, jwt
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import database as db
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from env import Env
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SECRET_KEY = Env.get_strict("JWT_SECRET_KEY", str)
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ACCESS_TOKEN_EXPIRE_MINUTES = \
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Env.get_strict("JWT_ACCESS_TOKEN_EXPIRE_MINUTES", int)
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crypt = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="auth")
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auth_router = APIRouter(prefix="/auth", tags=["Auth"])
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class Token(BaseModel):
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access_token: str
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token_type: str
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class TokenData(BaseModel):
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username: str
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email: str
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def check_password(password, hash): return crypt.verify(password, hash)
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def get_hash(password): return crypt.hash(password)
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async def get_user(token: str = Depends(oauth2_scheme),
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db_session: AsyncSession = Depends(db.get_session)):
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(token, SECRET_KEY)
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token_data = TokenData(**payload)
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except Exception as e:
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print(e)
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raise credentials_exception
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user = await db.get_user(db_session, token_data.username)
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print(user)
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if user is None:
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raise credentials_exception
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return user
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def create_token(user: db.User):
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access_token_expires = \
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timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
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expire = datetime.now(timezone.utc) + access_token_expires
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to_encode = {
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"id": user.id,
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"username": user.name,
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"email": user.email,
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"expire": str(expire)
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}
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encoded_jwt = jwt.encode(to_encode, SECRET_KEY)
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return Token(access_token=encoded_jwt, token_type="bearer")
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@auth_router.post("/registration")
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async def registration_user(
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user_data: db.UserCreate,
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db_session: AsyncSession = Depends(db.get_session)
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) -> Token:
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if (not await db.check_email(db_session, user_data.email)):
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="This email is occupied by another user",
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headers={"WWW-Authenticate": "Bearer"},
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)
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elif (await db.get_user(db_session, user_data.name) is not None):
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="User with the same name already exists",
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headers={"WWW-Authenticate": "Bearer"},
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)
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else:
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user = await db.add_user(db_session, user_data,
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get_hash(user_data.password))
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return create_token(user)
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@auth_router.post("")
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async def login_user(
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auth_data: OAuth2PasswordRequestForm = Depends(),
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db_session: AsyncSession = Depends(db.get_session)
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) -> Token:
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user = await db.get_user(db_session, auth_data.username)
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if (user is None):
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="User not found",
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headers={"WWW-Authenticate": "Bearer"},
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)
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if (not check_password(auth_data.password, user.hash_of_password)):
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Incorrect password",
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headers={"WWW-Authenticate": "Bearer"},
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)
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return create_token(user)
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@auth_router.get("/me", response_model=db.UserOpenData)
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async def read_me(user: db.User = Depends(get_user)):
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return user
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