1a8ec37bed
- Implement multi-format document support (PDF, XLSX, CSV, PPTX, TXT, Images) - Add S3-compatible storage service with tenant isolation - Create document organization service with hierarchical folders and tagging - Implement advanced document processing with table/chart extraction - Add batch upload capabilities (up to 50 files) - Create comprehensive document validation and security scanning - Implement automatic metadata extraction and categorization - Add document version control system - Update DEVELOPMENT_PLAN.md to mark Week 2 as completed - Add WEEK2_COMPLETION_SUMMARY.md with detailed implementation notes - All tests passing (6/6) - 100% success rate
209 lines
7.5 KiB
Python
209 lines
7.5 KiB
Python
"""
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Authentication and authorization service for the Virtual Board Member AI System.
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"""
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import logging
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from datetime import datetime, timedelta
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from typing import Optional, Dict, Any
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from fastapi import HTTPException, Depends, status
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from sqlalchemy.orm import Session
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import redis.asyncio as redis
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from app.core.config import settings
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from app.core.database import get_db
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from app.models.user import User
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from app.models.tenant import Tenant
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logger = logging.getLogger(__name__)
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# Security configurations
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security = HTTPBearer()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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class AuthService:
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"""Authentication service with tenant-aware authentication."""
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def __init__(self):
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self.redis_client = None
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self._init_redis()
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async def _init_redis(self):
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"""Initialize Redis connection for session management."""
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try:
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self.redis_client = redis.from_url(
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settings.REDIS_URL,
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encoding="utf-8",
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decode_responses=True
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)
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await self.redis_client.ping()
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logger.info("Redis connection established for auth service")
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except Exception as e:
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logger.error(f"Failed to connect to Redis: {e}")
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self.redis_client = None
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def verify_password(self, 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 get_password_hash(self, password: str) -> str:
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"""Generate password hash."""
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return pwd_context.hash(password)
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def create_access_token(self, data: Dict[str, Any], expires_delta: Optional[timedelta] = None) -> str:
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"""Create 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 verify_token(self, token: str) -> Dict[str, Any]:
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"""Verify and decode JWT token."""
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try:
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payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
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return payload
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except JWTError as e:
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logger.error(f"Token verification failed: {e}")
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raise 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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async def create_session(self, user_id: str, tenant_id: str, token: str) -> bool:
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"""Create user session in Redis."""
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if not self.redis_client:
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logger.warning("Redis not available, session not created")
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return False
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try:
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session_key = f"session:{user_id}:{tenant_id}"
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session_data = {
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"user_id": user_id,
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"tenant_id": tenant_id,
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"token": token,
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"created_at": datetime.utcnow().isoformat(),
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"expires_at": (datetime.utcnow() + timedelta(hours=24)).isoformat()
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}
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await self.redis_client.hset(session_key, mapping=session_data)
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await self.redis_client.expire(session_key, 86400) # 24 hours
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logger.info(f"Session created for user {user_id} in tenant {tenant_id}")
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return True
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except Exception as e:
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logger.error(f"Failed to create session: {e}")
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return False
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async def get_session(self, user_id: str, tenant_id: str) -> Optional[Dict[str, Any]]:
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"""Get user session from Redis."""
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if not self.redis_client:
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return None
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try:
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session_key = f"session:{user_id}:{tenant_id}"
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session_data = await self.redis_client.hgetall(session_key)
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if session_data:
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expires_at = datetime.fromisoformat(session_data["expires_at"])
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if datetime.utcnow() < expires_at:
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return session_data
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else:
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await self.redis_client.delete(session_key)
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return None
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except Exception as e:
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logger.error(f"Failed to get session: {e}")
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return None
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async def invalidate_session(self, user_id: str, tenant_id: str) -> bool:
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"""Invalidate user session."""
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if not self.redis_client:
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return False
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try:
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session_key = f"session:{user_id}:{tenant_id}"
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await self.redis_client.delete(session_key)
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logger.info(f"Session invalidated for user {user_id} in tenant {tenant_id}")
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return True
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except Exception as e:
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logger.error(f"Failed to invalidate session: {e}")
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return False
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# Global auth service instance
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auth_service = AuthService()
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async def get_current_user(
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credentials: HTTPAuthorizationCredentials = Depends(security),
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db: Session = Depends(get_db)
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) -> User:
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"""Get current authenticated user with tenant context."""
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token = credentials.credentials
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payload = auth_service.verify_token(token)
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user_id: str = payload.get("sub")
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tenant_id: str = payload.get("tenant_id")
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if user_id is None or tenant_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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headers={"WWW-Authenticate": "Bearer"},
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)
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# Verify session exists
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session = await auth_service.get_session(user_id, tenant_id)
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if not session:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Session expired or invalid",
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headers={"WWW-Authenticate": "Bearer"},
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)
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# Get user from database
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user = db.query(User).filter(
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User.id == user_id,
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User.tenant_id == tenant_id
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).first()
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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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return user
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async def get_current_active_user(current_user: User = Depends(get_current_user)) -> User:
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"""Get current active user."""
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if not current_user.is_active:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Inactive user"
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)
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return current_user
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def require_role(required_role: str):
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"""Decorator to require specific user role."""
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def role_checker(current_user: User = Depends(get_current_active_user)) -> User:
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if current_user.role != required_role and current_user.role != "admin":
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Insufficient permissions"
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)
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return current_user
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return role_checker
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def require_tenant_access():
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"""Decorator to ensure user has access to the specified tenant."""
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def tenant_checker(current_user: User = Depends(get_current_active_user)) -> User:
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# Additional tenant-specific checks can be added here
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return current_user
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return tenant_checker
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