77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
import functools
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import frappe
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import pyotp
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from frappe import auth
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def enabled(user_key: str = "user", raise_error: bool = False):
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"""
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Guard to check if two-factor authentication is enabled for a user.
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:param user_key: The key to retrieve the user from the request form if the session user is "Guest". Defaults to "user".
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:param raise_error: Whether to raise a PermissionError if 2FA is not enabled. Defaults to False.
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:raises frappe.PermissionError: If 2FA is not enabled and `raise_error` is True.
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"""
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def get_user() -> str:
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if frappe.session.user == "Guest":
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return (frappe.request.json or frappe.request.form).get(user_key, frappe.session.user)
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return frappe.session.user
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def wrapper(fn):
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@functools.wraps(fn)
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def inner(*args, **kwargs):
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if frappe.get_value("User 2FA", get_user(), "enabled"):
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return fn(*args, **kwargs)
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if raise_error:
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message = "Two-factor authentication is not enabled."
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frappe.throw(message, frappe.PermissionError)
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return None
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return inner
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return wrapper
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def verify(user_key: str = "user", code_key: str = "totp_code", raise_error: bool = False):
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"""
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Guard to verify two-factor authentication for a user.
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:param user_key: The key to retrieve the user from the request form if the session user is "Guest". Defaults to "user".
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:param code_key: The key to retrieve the TOTP code from the request form. Defaults to "totp_code".
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:param raise_error: Whether to raise a PermissionError if 2FA verification fails. Defaults to False.
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:raises frappe.PermissionError: If 2FA verification fails and `raise_error` is True.
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"""
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def get_user() -> str:
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if frappe.session.user == "Guest":
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return (frappe.request.json or frappe.request.form).get(user_key, frappe.session.user)
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return frappe.session.user
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def get_code() -> str:
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return (frappe.request.json or frappe.request.form).get(code_key, "")
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def verify_code(user: str, code: str):
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secret = auth.get_decrypted_password("User 2FA", user, "totp_secret")
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return secret and pyotp.TOTP(secret).verify(code)
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def wrapper(fn):
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@functools.wraps(fn)
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def inner(*args, **kwargs):
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user = get_user()
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code = get_code()
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if user and not frappe.get_value("User 2FA", user, "enabled"):
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return fn(*args, **kwargs)
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if user and code and verify_code(user, code):
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return fn(*args, **kwargs)
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if raise_error:
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message = "Two-factor authentication verification failed."
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frappe.throw(message, frappe.PermissionError)
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return None
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return inner
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return wrapper
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