Initial commit: InfoUser Monitor with FastAPI, agent, Docker, JWT auth, notifications, filters and CSV export

server/auth.py

@@ -0,0 +1,91 @@
+from datetime import datetime, timedelta, timezone
+from typing import Optional
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from sqlalchemy.orm import Session
+from config import get_settings
+from database import get_db
+import models
+
+settings = get_settings()
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login", auto_error=False)
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
+    to_encode = data.copy()
+    expire = datetime.now(timezone.utc) + (
+        expires_delta or timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    )
+    to_encode.update({"exp": expire, "type": "access"})
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+
+
+def create_refresh_token(data: dict) -> str:
+    to_encode = data.copy()
+    expire = datetime.now(timezone.utc) + timedelta(days=settings.REFRESH_TOKEN_EXPIRE_DAYS)
+    to_encode.update({"exp": expire, "type": "refresh"})
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+
+
+def verify_token(token: str, token_type: str) -> Optional[dict]:
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        if payload.get("type") != token_type:
+            return None
+        return payload
+    except JWTError:
+        return None
+
+
+def get_current_user(
+    token: Optional[str] = Depends(oauth2_scheme),
+    db: Session = Depends(get_db),
+) -> Optional[models.User]:
+    if not token:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Not authenticated",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    payload = verify_token(token, "access")
+    if not payload or "sub" not in payload:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
+    user = db.query(models.User).filter(models.User.username == payload["sub"]).first()
+    if not user:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found")
+    return user
+
+
+def require_admin(user: models.User = Depends(get_current_user)):
+    if user.role != "admin":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Admin required")
+    return user
+
+
+def create_default_admin(db: Session) -> Optional[models.User]:
+    if not settings.CREATE_ADMIN_ON_STARTUP:
+        return None
+    existing = db.query(models.User).filter(models.User.username == settings.ADMIN_USERNAME).first()
+    if existing:
+        return existing
+    admin = models.User(
+        username=settings.ADMIN_USERNAME,
+        password_hash=get_password_hash(settings.ADMIN_PASSWORD),
+        role="admin",
+    )
+    db.add(admin)
+    db.commit()
+    db.refresh(admin)
+    return admin