Files
odysseus/tests/test_skill_importer_security.py
T

156 lines
6.0 KiB
Python

import re
from unittest.mock import MagicMock, patch
import pytest
from services.memory.skill_importer import (
ResolvedSource,
SkillImportError,
check_outbound_url,
parse_skill_source,
)
## 1. Tests for Hostname Dispatch & Substring Spoofing
@pytest.mark.parametrize(
"url",
[
"https://skills.sh.attacker.com/owner/repo",
"https://evilskills.sh/owner/repo",
"https://notskills.sh/owner/repo",
"https://api.skills.sh/owner/repo",
"https://1.1.1.1/skills.sh/owner/repo",
"http://localhost/skills.sh/owner/repo",
],
)
def test_parse_skill_source_rejects_unsupported_host_before_fetch(url):
"""Unsupported authorities must never reach the network unwrap path."""
with patch("services.memory.skill_importer._get_checked") as mock_get:
with pytest.raises(SkillImportError):
parse_skill_source(url)
mock_get.assert_not_called()
@pytest.mark.parametrize("entry", ["https://skills.sh/my-skill", "https://www.skills.sh/my-skill"])
def test_parse_skill_source_unwraps_skills_sh_redirect_to_github(entry):
"""Both skills.sh spellings unwrap when the fetch lands on a GitHub host."""
with patch("services.memory.skill_importer._get_checked") as mock_get:
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.url = "https://github.com/test-owner/test-repo"
mock_get.return_value = mock_response
source = parse_skill_source(entry)
assert source.owner == "test-owner"
assert source.repo == "test-repo"
def test_parse_skill_source_rejects_skills_sh_page_that_never_reaches_github():
"""A skills.sh page that does not redirect to GitHub must fail loudly.
The live site serves the skill page from ``www.skills.sh`` and only ever
links the repository root, never the skill's subdirectory. Scraping a
``github.com`` link out of the body therefore resolves every skill in a
repo to the same bundle, so the importer must refuse rather than guess.
"""
body = '<html><body><a href="https://github.com/test-owner/test-repo">Repository</a></body></html>'
with patch("services.memory.skill_importer._get_checked") as mock_get:
mock_response = MagicMock()
mock_response.status_code = 200
mock_response.url = "https://www.skills.sh/anthropics/skills/pdf"
mock_response.text = body
mock_get.return_value = mock_response
with pytest.raises(
SkillImportError, match="did not redirect to GitHub"
) as exc_info:
parse_skill_source("https://skills.sh/anthropics/skills/pdf")
message = str(exc_info.value)
assert "exact skill folder or SKILL.md file" in message
assert "repository-root link alone is not sufficient" in message
@pytest.mark.parametrize(
("url", "expected"),
[
("ftp://github.com/o/r", "unsupported URL scheme: ftp"),
("file:///etc/passwd", "unsupported URL scheme: file"),
("gopher://github.com/o/r", "unsupported URL scheme: gopher"),
("javascript:alert(1)", "Only GitHub or skills.sh URLs are supported"),
("mailto:x@y.z", "Only GitHub or skills.sh URLs are supported"),
("data:text/html,<b>x</b>", "Only GitHub or skills.sh URLs are supported"),
("https://evil.example/o/r", "Only GitHub or skills.sh URLs are supported"),
],
)
def test_parse_skill_source_reports_the_real_reason_for_rejection(url, expected):
"""A supplied-but-unusable URL must not be reported as a missing URL."""
with patch("services.memory.skill_importer._get_checked") as mock_get:
with pytest.raises(SkillImportError, match=re.escape(expected)):
parse_skill_source(url)
mock_get.assert_not_called()
@pytest.mark.parametrize(
("url", "owner", "repo"),
[
("github.com/octocat/Hello-World", "octocat", "Hello-World"),
("HTTPS://github.com/octocat/Hello-World", "octocat", "Hello-World"),
("github.com:443/octocat/Hello-World", "octocat", "Hello-World"),
("github.com/octocat/Hello-World?q=a://b", "octocat", "Hello-World"),
],
)
def test_parse_skill_source_accepts_schemeless_and_uppercase_github(url, owner, repo):
"""A schemeless host, an uppercase scheme, and a ``://`` in the query all parse."""
source = parse_skill_source(url)
assert (source.owner, source.repo) == (owner, repo)
def test_parse_skill_source_valid_github():
"""Ensure standard GitHub URLs parse into the correct ResolvedSource fields."""
source = parse_skill_source("https://github.com/octocat/Hello-World/tree/main/docs")
assert isinstance(source, ResolvedSource)
assert source.owner == "octocat"
assert source.repo == "Hello-World"
assert source.ref == "main"
assert source.path == "docs"
## 2. Tests for SSRF Guard & CGNAT
def test_check_outbound_url_blocks_cgnat():
"""Ensure Carrier-Grade NAT (RFC 6598) block 100.64.0.0/10 is blocked."""
def mock_resolver(host):
return ["100.64.5.10"]
ok, reason = check_outbound_url("http://example.com", block_private=True, resolver=mock_resolver)
assert not ok
assert "private/shared/loopback" in reason # Updated to match your codebase's error string
def test_check_outbound_url_blocks_loopback():
"""Ensure loopback IPs (127.0.0.1) are blocked by default."""
def mock_resolver(host):
return ["127.0.0.1"]
ok, reason = check_outbound_url("http://localhost", block_private=True, resolver=mock_resolver)
assert not ok
def test_check_outbound_url_blocks_metadata():
"""Ensure cloud metadata endpoints (169.254.169.254) are blocked."""
def mock_resolver(host):
return ["169.254.169.254"]
ok, reason = check_outbound_url("http://metadata.google.internal", block_private=True, resolver=mock_resolver)
assert not ok
def test_check_outbound_url_allows_public_ip():
"""Ensure public routable IPs pass successfully."""
def mock_resolver(host):
return ["93.184.216.34"]
ok, reason = check_outbound_url("http://example.com", block_private=True, resolver=mock_resolver)
assert ok
assert reason == "ok"