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117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
"""Tests for the skill_view path boundary check.
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Regression test: the original check used a hardcoded "/" separator which
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fails on Windows where Path.resolve() returns backslash-separated paths.
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Now uses Path.is_relative_to() which handles all platforms correctly.
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"""
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import os
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import pytest
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from pathlib import Path
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def _path_escapes_skill_dir(resolved: Path, skill_dir_resolved: Path) -> bool:
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"""Reproduce the boundary check from tools/skills_tool.py.
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Returns True when the resolved path is OUTSIDE the skill directory.
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"""
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return not resolved.is_relative_to(skill_dir_resolved)
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class TestSkillViewPathBoundaryCheck:
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"""Verify the path boundary check works on all platforms."""
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def test_valid_subpath_allowed(self, tmp_path):
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"""A file inside the skill directory must NOT be flagged."""
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skill_dir = tmp_path / "skills" / "axolotl"
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ref_file = skill_dir / "references" / "api.md"
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skill_dir.mkdir(parents=True)
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ref_file.parent.mkdir()
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ref_file.write_text("content")
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resolved = ref_file.resolve()
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skill_dir_resolved = skill_dir.resolve()
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is False
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def test_deeply_nested_subpath_allowed(self, tmp_path):
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"""Deeply nested valid paths must also pass."""
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skill_dir = tmp_path / "skills" / "ml-paper"
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deep_file = skill_dir / "templates" / "acl" / "formatting.md"
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skill_dir.mkdir(parents=True)
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deep_file.parent.mkdir(parents=True)
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deep_file.write_text("content")
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resolved = deep_file.resolve()
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skill_dir_resolved = skill_dir.resolve()
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is False
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def test_outside_path_blocked(self, tmp_path):
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"""A file outside the skill directory must be flagged."""
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skill_dir = tmp_path / "skills" / "axolotl"
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skill_dir.mkdir(parents=True)
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outside_file = tmp_path / "secret.env"
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outside_file.write_text("SECRET=123")
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resolved = outside_file.resolve()
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skill_dir_resolved = skill_dir.resolve()
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is True
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def test_sibling_skill_dir_blocked(self, tmp_path):
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"""A file in a sibling skill directory must be flagged.
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This catches prefix confusion: 'axolotl-v2' starts with 'axolotl'
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as a string but is a different directory.
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"""
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skill_dir = tmp_path / "skills" / "axolotl"
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sibling_dir = tmp_path / "skills" / "axolotl-v2"
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skill_dir.mkdir(parents=True)
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sibling_dir.mkdir(parents=True)
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sibling_file = sibling_dir / "SKILL.md"
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sibling_file.write_text("other skill")
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resolved = sibling_file.resolve()
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skill_dir_resolved = skill_dir.resolve()
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is True
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def test_skill_dir_itself_allowed(self, tmp_path):
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"""Requesting the skill directory itself must be allowed."""
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skill_dir = tmp_path / "skills" / "axolotl"
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skill_dir.mkdir(parents=True)
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resolved = skill_dir.resolve()
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skill_dir_resolved = skill_dir.resolve()
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is False
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class TestOldCheckWouldFail:
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"""Demonstrate the bug: the old hardcoded '/' check fails on Windows."""
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def _old_path_escapes(self, resolved: Path, skill_dir_resolved: Path) -> bool:
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"""The BROKEN check that used hardcoded '/'."""
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return (
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not str(resolved).startswith(str(skill_dir_resolved) + "/")
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and resolved != skill_dir_resolved
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)
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@pytest.mark.skipif(os.sep == "/", reason="Bug only manifests on Windows")
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def test_old_check_false_positive_on_windows(self, tmp_path):
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"""On Windows, the old check incorrectly blocks valid subpaths."""
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skill_dir = tmp_path / "skills" / "axolotl"
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ref_file = skill_dir / "references" / "api.md"
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skill_dir.mkdir(parents=True)
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ref_file.parent.mkdir()
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ref_file.write_text("content")
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resolved = ref_file.resolve()
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skill_dir_resolved = skill_dir.resolve()
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# Old check says it escapes (WRONG on Windows)
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assert self._old_path_escapes(resolved, skill_dir_resolved) is True
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# New check correctly allows it
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assert _path_escapes_skill_dir(resolved, skill_dir_resolved) is False
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