mirror of
https://github.com/OHV-IT/collabrix.git
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93b98cfb5c
- Complete chat application similar to Microsoft Teams - Code snippet library with syntax highlighting - Real-time messaging with WebSockets - File upload with Office integration - Department-based permissions - Dark/Light theme support - Production deployment with SSL/Reverse Proxy - Docker containerization - PostgreSQL database with SQLModel ORM
105 lines
3.2 KiB
Python
105 lines
3.2 KiB
Python
from datetime import datetime, timedelta
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from typing import Optional
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from fastapi import Depends, HTTPException, status, Query
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from sqlmodel import Session, select
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from app.config import get_settings
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from app.database import get_session
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from app.models import User
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settings = get_settings()
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# Password hashing with Argon2 (modern alternative to bcrypt)
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pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")
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# HTTP Bearer token
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security = HTTPBearer(auto_error=False)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""Verify a password against a hash"""
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return pwd_context.verify(plain_password, hashed_password)
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def get_password_hash(password: str) -> str:
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"""Hash a password"""
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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.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(minutes=settings.access_token_expire_minutes)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, settings.secret_key, algorithm=settings.algorithm)
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return encoded_jwt
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def decode_access_token(token: str) -> Optional[str]:
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"""Decode JWT token and return username"""
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try:
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payload = jwt.decode(token, settings.secret_key, algorithms=[settings.algorithm])
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username: str = payload.get("sub")
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if username is None:
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return None
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return username
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except JWTError:
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return None
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async def get_current_user(
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credentials: Optional[HTTPAuthorizationCredentials] = Depends(security),
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token_query: Optional[str] = Query(None, alias="token"),
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session: Session = Depends(get_session)
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) -> User:
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"""Get current authenticated user from header or query parameter"""
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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 to get token from header first, then from query parameter
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token = None
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if credentials:
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token = credentials.credentials
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elif token_query:
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token = token_query
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if not token:
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raise credentials_exception
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username = decode_access_token(token)
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if username is None:
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raise credentials_exception
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statement = select(User).where(User.username == username)
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user = session.exec(statement).first()
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if user is None:
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raise credentials_exception
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# Refresh to avoid returning session object
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session.refresh(user)
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return user
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def authenticate_user(session: Session, username: str, password: str) -> Optional[User]:
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"""Authenticate a user"""
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statement = select(User).where(User.username == username)
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user = session.exec(statement).first()
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if not user:
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return None
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if not verify_password(password, user.hashed_password):
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return None
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return user
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