canaille-globuzma/canaille/flaskutils.py

57 lines
1.3 KiB
Python

import ldap
from functools import wraps
from flask import session, abort
from canaille.models import User
def current_user():
if not session.get("user_dn"):
return None
if not isinstance(session.get("user_dn"), list):
del session["user_dn"]
return None
dn = session["user_dn"][-1]
try:
user = User.get(dn=dn)
except ldap.LDAPError:
return None
if not user:
try:
session["user_dn"] = session["user_dn"][:-1]
except IndexError:
del session["user_dn"]
return user
def user_needed():
def wrapper(view_function):
@wraps(view_function)
def decorator(*args, **kwargs):
user = current_user()
if not user:
abort(403)
return view_function(*args, user=user, **kwargs)
return decorator
return wrapper
def permissions_needed(*args):
permissions = set(args)
def wrapper(view_function):
@wraps(view_function)
def decorator(*args, **kwargs):
user = current_user()
if not user or not permissions.issubset(user.permissions):
abort(403)
return view_function(*args, user=user, **kwargs)
return decorator
return wrapper