a3eca3b7da
- FastAPI backend with SQLite database - JWT authentication (register, login) - User profiles with follow/unfollow - Posts with image upload and likes/dislikes - Comments with likes - Global and personalized feed - Comprehensive pytest test suite (37 tests) TASK-ID: 758f4029-702
67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
"""Authentication utilities for SocialPhoto."""
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from datetime import datetime, timedelta, timezone
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from typing import Optional
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from fastapi import Depends, HTTPException, status
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from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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# Configuration
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SECRET_KEY = "your-secret-key-change-in-production" # TODO: Move to env
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ALGORITHM = "HS256"
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ACCESS_TOKEN_EXPIRE_HOURS = 24
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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security = HTTPBearer()
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""Verify a password against its hash."""
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return pwd_context.verify(plain_password, hashed_password)
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def hash_password(password: str) -> str:
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"""Hash a password using bcrypt."""
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return pwd_context.hash(password)
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
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"""Create a JWT access token."""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.now(timezone.utc) + expires_delta
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else:
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expire = datetime.now(timezone.utc) + timedelta(hours=ACCESS_TOKEN_EXPIRE_HOURS)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
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return encoded_jwt
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def decode_token(token: str) -> dict:
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"""Decode and verify a JWT token."""
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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return payload
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except JWTError:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid authentication credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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async def get_current_user_id(
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credentials: HTTPAuthorizationCredentials = Depends(security),
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) -> int:
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"""Extract user ID from JWT token."""
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token = credentials.credentials
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payload = decode_token(token)
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user_id: int = payload.get("sub")
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if user_id is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid token payload",
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)
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return int(user_id)
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