1d54b4ec09
- Set up project structure and dependencies - Create SQLAlchemy database models - Set up Alembic for database migrations - Implement user registration and login endpoints - Add JWT token authentication - Create middleware for protected routes - Add health check endpoint - Update README with documentation generated with BackendIM... (backend.im)
83 lines
2.3 KiB
Python
83 lines
2.3 KiB
Python
from fastapi import Request, HTTPException, status
|
|
from fastapi.responses import JSONResponse
|
|
from app.utils.auth import decode_token
|
|
from app.database import SessionLocal
|
|
from app.models import User
|
|
from starlette.datastructures import Headers
|
|
import re
|
|
|
|
|
|
PUBLIC_PATHS = [
|
|
r'^/docs$',
|
|
r'^/redoc$',
|
|
r'^/openapi.json$',
|
|
r'^/auth/token$',
|
|
r'^/auth/login$',
|
|
r'^/users/$',
|
|
r'^/health$',
|
|
]
|
|
|
|
|
|
async def get_current_user(token: str):
|
|
"""
|
|
Get the current user from a JWT token
|
|
"""
|
|
payload = decode_token(token)
|
|
|
|
db = SessionLocal()
|
|
try:
|
|
user = db.query(User).filter(User.username == payload["username"]).first()
|
|
if user is None:
|
|
raise HTTPException(status_code=404, detail="User not found")
|
|
return user
|
|
finally:
|
|
db.close()
|
|
|
|
|
|
async def verify_token(request: Request, call_next):
|
|
"""
|
|
Middleware to verify JWT tokens
|
|
"""
|
|
# Check if the path is public
|
|
path = request.url.path
|
|
for pattern in PUBLIC_PATHS:
|
|
if re.match(pattern, path):
|
|
return await call_next(request)
|
|
|
|
# Get the Authorization header
|
|
auth_header = request.headers.get("Authorization")
|
|
if not auth_header:
|
|
return JSONResponse(
|
|
status_code=status.HTTP_401_UNAUTHORIZED,
|
|
content={"detail": "Not authenticated"},
|
|
headers={"WWW-Authenticate": "Bearer"},
|
|
)
|
|
|
|
# Extract the token
|
|
try:
|
|
scheme, token = auth_header.split()
|
|
if scheme.lower() != "bearer":
|
|
return JSONResponse(
|
|
status_code=status.HTTP_401_UNAUTHORIZED,
|
|
content={"detail": "Invalid authentication scheme"},
|
|
headers={"WWW-Authenticate": "Bearer"},
|
|
)
|
|
except ValueError:
|
|
return JSONResponse(
|
|
status_code=status.HTTP_401_UNAUTHORIZED,
|
|
content={"detail": "Invalid token format"},
|
|
headers={"WWW-Authenticate": "Bearer"},
|
|
)
|
|
|
|
# Verify the token and get the current user
|
|
try:
|
|
user = await get_current_user(token)
|
|
# Add the user to the request state
|
|
request.state.user = user
|
|
return await call_next(request)
|
|
except HTTPException as e:
|
|
return JSONResponse(
|
|
status_code=e.status_code,
|
|
content={"detail": e.detail},
|
|
headers=e.headers,
|
|
) |