72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
"""Session auth. Identity always comes from the session, never from a client profile header."""
|
|
from __future__ import annotations
|
|
|
|
import secrets
|
|
from datetime import datetime, timedelta
|
|
from typing import Optional
|
|
|
|
import bcrypt
|
|
from fastapi import Header, HTTPException
|
|
|
|
from db import get_db, row_to_dict
|
|
|
|
|
|
def hash_password(password: str) -> str:
|
|
return bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
|
|
|
|
|
|
def verify_password(password: str, stored_hash: str) -> bool:
|
|
if not stored_hash:
|
|
return False
|
|
try:
|
|
return bcrypt.checkpw(password.encode(), stored_hash.encode())
|
|
except Exception:
|
|
return False
|
|
|
|
|
|
def make_token() -> str:
|
|
return secrets.token_urlsafe(32)
|
|
|
|
|
|
def get_session(token: str) -> dict | None:
|
|
if not token:
|
|
return None
|
|
with get_db() as conn:
|
|
row = conn.execute(
|
|
"""
|
|
SELECT s.token, s.profile_id, s.expires_at, p.role, p.name, p.email
|
|
FROM sessions s
|
|
JOIN profiles p ON p.id = s.profile_id
|
|
WHERE s.token = ? AND s.expires_at > datetime('now')
|
|
""",
|
|
(token,),
|
|
).fetchone()
|
|
return row_to_dict(row)
|
|
|
|
|
|
def require_auth(x_auth_token: Optional[str] = Header(default=None, alias="X-Auth-Token")):
|
|
session = get_session(x_auth_token)
|
|
if not session:
|
|
raise HTTPException(401, "Nicht eingeloggt")
|
|
return session
|
|
|
|
|
|
def require_admin_dep(x_auth_token: Optional[str] = Header(default=None, alias="X-Auth-Token")):
|
|
session = get_session(x_auth_token)
|
|
if not session:
|
|
raise HTTPException(401, "Nicht eingeloggt")
|
|
if session.get("role") != "admin":
|
|
raise HTTPException(403, "Keine Berechtigung")
|
|
return session
|
|
|
|
|
|
def create_session(profile_id: str, session_days: int = 30) -> tuple[str, datetime]:
|
|
token = make_token()
|
|
expires = datetime.utcnow() + timedelta(days=session_days)
|
|
with get_db() as conn:
|
|
conn.execute(
|
|
"INSERT INTO sessions (token, profile_id, expires_at) VALUES (?, ?, ?)",
|
|
(token, profile_id, expires.isoformat(sep=" ")),
|
|
)
|
|
return token, expires
|