# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""Tests for the RDAP protocol module."""

import email
import unittest
import urllib.error
import urllib.request

from abusectl import rdap


class RedirectPolicy(unittest.TestCase):
    """A redirect is remote data directing our next request.

    urllib.request.Request is used rather than a hand-rolled fake, because
    HTTPRedirectHandler reads attributes (origin_req_host, unverifiable,
    timeout) that a fake would have to reproduce exactly to prove anything.
    """

    def _request(self):
        return urllib.request.Request("https://rdap.example.invalid/ip/192.0.2.1")

    def test_an_https_to_http_downgrade_is_refused(self):
        handler = rdap._NoDowngradeRedirectHandler()
        with self.assertRaises(urllib.error.HTTPError):
            handler.redirect_request(
                self._request(), None, 302, "Found",
                email.message_from_string(""),
                "http://rdap.example.invalid/ip/192.0.2.1",
            )

    def test_an_https_to_https_redirect_is_allowed(self):
        handler = rdap._NoDowngradeRedirectHandler()
        result = handler.redirect_request(
            self._request(), None, 302, "Found",
            email.message_from_string(""),
            "https://other.example.invalid/ip/192.0.2.1",
        )
        self.assertIsNotNone(result)


if __name__ == "__main__":
    unittest.main()