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# 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 turning indicators into abuse contacts."""
import unittest
from abusectl import contacts
class Worklist(unittest.TestCase):
def test_ips_and_domains_are_resolvable(self):
iocs = [
{"id": "ioc-1", "type": "ipv4", "value": "198.51.100.7"},
{"id": "ioc-2", "type": "domain", "value": "example.invalid"},
]
work = contacts.worklist(iocs)
self.assertEqual(
{(item.kind, item.query) for item in work},
{("ip", "198.51.100.7"), ("domain", "example.invalid")},
)
def test_hashes_and_observations_are_not_resolvable(self):
iocs = [
{"id": "ioc-1", "type": "sha256", "value": "e3b0c442"},
{"id": "ioc-2", "type": "observation",
"value": "display-name-carries-address"},
]
self.assertEqual(contacts.worklist(iocs), [])
def test_a_url_contributes_only_its_host(self):
"""THE FOURTH PROPERTY. A query discloses what the user is looking
at, and a URL path can carry recipient identity that
suspect_path_segments deliberately flags rather than redacts."""
iocs = [{
"id": "ioc-1", "type": "url",
"value": "https://login.example.invalid/verify/victim%40example.org?e=REDACTED",
}]
work = contacts.worklist(iocs)
self.assertEqual(len(work), 1)
self.assertEqual(work[0].kind, "domain")
self.assertEqual(work[0].query, "login.example.invalid")
def test_url_userinfo_never_reaches_the_query(self):
iocs = [{
"id": "ioc-1", "type": "url",
"value": "https://victim%40example.org:secret@login.example.invalid/x",
}]
work = contacts.worklist(iocs)
self.assertEqual(work[0].query, "login.example.invalid")
def test_a_url_port_is_stripped(self):
iocs = [{"id": "ioc-1", "type": "url",
"value": "https://login.example.invalid:8443/x"}]
self.assertEqual(contacts.worklist(iocs)[0].query, "login.example.invalid")
def test_a_url_host_that_is_an_ip_resolves_as_an_ip(self):
iocs = [{"id": "ioc-1", "type": "url",
"value": "http://198.51.100.7/login"}]
work = contacts.worklist(iocs)
self.assertEqual(work[0].kind, "ip")
self.assertEqual(work[0].query, "198.51.100.7")
def test_a_bracketed_ipv6_url_host_resolves_as_an_ip(self):
iocs = [{"id": "ioc-1", "type": "url",
"value": "http://[2001:db8::1]/login"}]
work = contacts.worklist(iocs)
self.assertEqual(work[0].kind, "ip")
self.assertEqual(work[0].query, "2001:db8::1")
def test_hosts_fold_and_keep_every_contributing_ioc(self):
"""Twenty URLs on one host must produce one query."""
iocs = [
{"id": "ioc-1", "type": "url", "value": "https://a.example.invalid/one"},
{"id": "ioc-2", "type": "url", "value": "https://a.example.invalid/two"},
{"id": "ioc-3", "type": "domain", "value": "a.example.invalid"},
]
work = contacts.worklist(iocs)
self.assertEqual(len(work), 1)
self.assertEqual(work[0].iocs, ["ioc-1", "ioc-2", "ioc-3"])
def test_a_trailing_dot_folds_with_the_bare_host(self):
iocs = [
{"id": "ioc-1", "type": "domain", "value": "example.invalid."},
{"id": "ioc-2", "type": "domain", "value": "example.invalid"},
]
self.assertEqual(len(contacts.worklist(iocs)), 1)
def test_an_untrusted_hop_is_still_resolved(self):
"""A forged chain's IP may still be the real sender's; the
confidence marker stays in the manifest for review."""
iocs = [{"id": "ioc-1", "type": "ipv4", "value": "203.0.113.99",
"confidence": "untrusted-hop"}]
self.assertEqual(len(contacts.worklist(iocs)), 1)
def test_a_malformed_url_contributes_nothing(self):
iocs = [{"id": "ioc-1", "type": "url", "value": "not a url"}]
self.assertEqual(contacts.worklist(iocs), [])
class Resolve(unittest.TestCase):
IPV4 = {"services": [[["198.51.100.0/24"], ["https://rir.example.invalid/"]]]}
IPV6 = {"services": []}
DNS = {"services": [[["invalid"], ["https://registry.example.invalid/"]]]}
def _bootstraps(self):
return {"ipv4": self.IPV4, "ipv6": self.IPV6, "dns": self.DNS}
def test_an_ip_resolves_to_its_abuse_desk(self):
def fetch(url):
return {
"handle": "NET-1",
"entities": [{
"roles": ["abuse"],
"vcardArray": ["vcard", [
["version", {}, "text", "4.0"],
["email", {}, "text", "abuse@example.invalid"],
]],
}],
}
iocs = [{"id": "ioc-1", "type": "ipv4", "value": "198.51.100.7"}]
result = contacts.resolve(
iocs, bootstraps=self._bootstraps(), fetch=fetch
)
self.assertEqual(len(result), 1)
self.assertEqual(result[0]["iocs"], ["ioc-1"])
self.assertEqual(result[0]["query"], "198.51.100.7")
self.assertEqual(result[0]["abuse"], ["abuse@example.invalid"])
self.assertEqual(result[0]["handle"], "NET-1")
self.assertNotIn("error", result[0])
def test_no_abuse_role_records_a_reason_not_an_error(self):
def fetch(url):
return {"handle": "NET-2", "entities": []}
iocs = [{"id": "ioc-1", "type": "ipv4", "value": "198.51.100.7"}]
result = contacts.resolve(
iocs, bootstraps=self._bootstraps(), fetch=fetch
)
self.assertEqual(result[0]["abuse"], [])
self.assertEqual(result[0]["error"], "no abuse role published")
def test_no_rdap_server_records_a_reason(self):
def fetch(url):
raise AssertionError(f"should not have fetched {url}")
iocs = [{"id": "ioc-1", "type": "domain", "value": "example.test"}]
result = contacts.resolve(
iocs, bootstraps=self._bootstraps(), fetch=fetch
)
self.assertEqual(result[0]["abuse"], [])
self.assertIn("no rdap server", result[0]["error"])
def test_a_network_failure_is_per_query_and_does_not_stop_the_run(self):
def fetch(url):
if "198.51.100.7" in url:
raise OSError("connection timed out")
return {
"handle": "DOM-1",
"entities": [{
"roles": ["abuse"],
"vcardArray": ["vcard", [
["version", {}, "text", "4.0"],
["email", {}, "text", "abuse@example.invalid"],
]],
}],
}
iocs = [
{"id": "ioc-1", "type": "ipv4", "value": "198.51.100.7"},
{"id": "ioc-2", "type": "domain", "value": "example.invalid"},
]
result = contacts.resolve(
iocs, bootstraps=self._bootstraps(), fetch=fetch
)
self.assertEqual(len(result), 2)
failed = [r for r in result if r["query"] == "198.51.100.7"][0]
worked = [r for r in result if r["query"] == "example.invalid"][0]
self.assertIn("connection timed out", failed["error"])
self.assertEqual(worked["abuse"], ["abuse@example.invalid"])
def test_one_query_per_host_however_many_iocs(self):
calls = []
def fetch(url):
calls.append(url)
return {"handle": "DOM-1", "entities": []}
iocs = [
{"id": f"ioc-{n}", "type": "url",
"value": f"https://a.example.invalid/page{n}"}
for n in range(20)
]
result = contacts.resolve(
iocs, bootstraps=self._bootstraps(), fetch=fetch
)
self.assertEqual(len(calls), 1)
self.assertEqual(len(result[0]["iocs"]), 20)
def test_no_query_ever_carries_a_path(self):
"""THE FOURTH PROPERTY, asserted at the transport."""
calls = []
def fetch(url):
calls.append(url)
return {"handle": "DOM-1", "entities": []}
iocs = [{
"id": "ioc-1", "type": "url",
"value": "https://a.example.invalid/verify/victim%40example.org?e=x",
}]
contacts.resolve(iocs, bootstraps=self._bootstraps(), fetch=fetch)
for url in calls:
self.assertNotIn("victim", url)
self.assertNotIn("verify", url)
self.assertNotIn("%40", url)
self.assertNotIn("?", url)
if __name__ == "__main__":
unittest.main()
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