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import datetime |
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import typing |
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from pyramid.authentication import CallbackAuthenticationPolicy |
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from pyramid.authentication import SessionAuthenticationPolicy |
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from pyramid.interfaces import IAuthenticationPolicy |
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from pyramid.request import Request |
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from zope.interface import implementer |
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from tracim_backend.exceptions import UserDoesNotExist |
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from tracim_backend.lib.core.user import UserApi |
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from tracim_backend.lib.utils.request import TracimRequest |
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from tracim_backend.models import User |
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BASIC_AUTH_WEBUI_REALM = "tracim" |
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TRACIM_API_KEY_HEADER = "Tracim-Api-Key" |
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TRACIM_API_USER_EMAIL_LOGIN_HEADER = "Tracim-Api-Login" |
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### |
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# Pyramid HTTP Basic Auth |
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### |
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def basic_auth_check_credentials( |
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login: str, |
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cleartext_password: str, |
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request: TracimRequest |
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) -> typing.Optional[list]: |
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""" |
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Check credential for pyramid basic_auth |
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:param login: login of user |
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:param cleartext_password: user password in cleartext |
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:param request: Pyramid request |
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:return: None if auth failed, list of permissions if auth succeed |
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""" |
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# Do not accept invalid user |
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user = _get_auth_unsafe_user(request) |
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if not user \ |
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or user.email != login \ |
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or not user.is_active \ |
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or user.is_deleted \ |
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or not user.validate_password(cleartext_password): |
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return None |
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return [] |
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def _get_auth_unsafe_user( |
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request: Request, |
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) -> typing.Optional[User]: |
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""" |
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:param request: pyramid request |
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:return: User or None |
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""" |
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app_config = request.registry.settings['CFG'] |
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uapi = UserApi(None, session=request.dbsession, config=app_config) |
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try: |
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login = request.unauthenticated_userid |
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if not login: |
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return None |
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user = uapi.get_one_by_email(login) |
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except UserDoesNotExist: |
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return None |
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return user |
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### |
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# Pyramid cookie auth policy |
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### |
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@implementer(IAuthenticationPolicy) |
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class CookieSessionAuthentificationPolicy(SessionAuthenticationPolicy): |
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def __init__(self, reissue_time: int, debug: bool = False): |
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SessionAuthenticationPolicy.__init__(self, debug=debug, callback=None) |
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self._reissue_time = reissue_time |
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def authenticated_userid(self, request): |
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# check if user is correct |
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user = _get_auth_unsafe_user(request) |
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# do not allow invalid_user + ask for cleanup of session cookie |
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if not user or not user.is_active or user.is_deleted: |
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request.session.delete() |
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return None |
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# recreate session if need renew |
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if not request.session.new: |
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now = datetime.datetime.now() |
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last_access_datetime = datetime.datetime.utcfromtimestamp(request.session.last_accessed) |
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reissue_limit = last_access_datetime + datetime.timedelta(seconds=self._reissue_time) # nopep8 |
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if now > reissue_limit: # nopep8 |
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request.session.regenerate_id() |
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return request.unauthenticated_userid |
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def forget(self, request): |
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""" Remove the stored userid from the session.""" |
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if self.userid_key in request.session: |
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request.session.delete() |
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return [] |
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### |
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# Pyramid API key auth |
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### |
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@implementer(IAuthenticationPolicy) |
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class ApiTokenAuthentificationPolicy(CallbackAuthenticationPolicy): |
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def __init__(self, api_key_header: str, api_user_email_login_header: str): |
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self.api_key_header = api_key_header |
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self.api_user_email_login_header = api_user_email_login_header |
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def authenticated_userid(self, request): |
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app_config = request.registry.settings['CFG'] # type:'CFG' |
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valid_api_key = app_config.API_KEY |
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api_key = request.headers.get(self.api_key_header) |
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if not api_key or not valid_api_key: |
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return None |
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if valid_api_key != api_key: |
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return None |
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# check if user is correct |
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user = _get_auth_unsafe_user(request) |
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if not user or not user.is_active or user.is_deleted: |
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return None |
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return request.unauthenticated_userid |
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def unauthenticated_userid(self, request): |
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return request.headers.get(self.api_user_email_login_header) |
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def remember(self, request, userid, **kw): |
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return [] |
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def forget(self, request): |
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return [] |
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tracim /
tracim_v2
