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100 lines
4.4 KiB
Python
100 lines
4.4 KiB
Python
"""Tests for CLI security features (CLI-001: clipboard tool validation)."""
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import importlib.machinery
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import importlib.util
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import sys
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from pathlib import Path
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from unittest.mock import patch
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import pytest
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def load_fpaste_module():
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"""Load the fpaste script as a module."""
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fpaste_path = Path(__file__).parent.parent / "fpaste"
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spec = importlib.util.spec_from_loader(
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"fpaste",
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importlib.machinery.SourceFileLoader("fpaste", str(fpaste_path)),
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)
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if spec is None or spec.loader is None:
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pytest.skip("Could not load fpaste module")
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return None # unreachable, but helps mypy
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assert spec is not None # mypy: narrow type after skip
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assert spec.loader is not None
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fpaste = importlib.util.module_from_spec(spec)
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sys.modules["fpaste"] = fpaste
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spec.loader.exec_module(fpaste)
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return fpaste
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class TestClipboardPathValidation:
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"""Tests for CLI-001: clipboard tool path validation."""
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@pytest.fixture
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def fpaste(self):
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"""Load fpaste module."""
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return load_fpaste_module()
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def test_trusted_unix_paths(self, fpaste):
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"""Paths in trusted Unix directories should be accepted."""
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assert fpaste.is_trusted_clipboard_path("/usr/bin/xclip") is True
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assert fpaste.is_trusted_clipboard_path("/usr/local/bin/xsel") is True
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assert fpaste.is_trusted_clipboard_path("/bin/cat") is True
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assert fpaste.is_trusted_clipboard_path("/opt/homebrew/bin/pbcopy") is True
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def test_untrusted_unix_paths(self, fpaste):
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"""Paths in user-writable directories should be rejected."""
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assert fpaste.is_trusted_clipboard_path("/home/user/bin/xclip") is False
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assert fpaste.is_trusted_clipboard_path("/tmp/xclip") is False # noqa: S108
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assert fpaste.is_trusted_clipboard_path("/var/tmp/malicious") is False # noqa: S108
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assert fpaste.is_trusted_clipboard_path("./xclip") is False
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assert fpaste.is_trusted_clipboard_path("") is False
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def test_none_path_rejected(self, fpaste):
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"""None path should be rejected."""
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# is_trusted_clipboard_path should handle None gracefully
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assert fpaste.is_trusted_clipboard_path(None) is False
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@pytest.mark.skipif(sys.platform != "win32", reason="Windows path tests only run on Windows")
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def test_trusted_windows_paths(self, fpaste):
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"""Paths in trusted Windows directories should be accepted."""
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# Test Windows paths (case-insensitive)
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assert fpaste.is_trusted_clipboard_path("C:\\Windows\\System32\\clip.exe") is True
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assert fpaste.is_trusted_clipboard_path("C:\\WINDOWS\\SYSTEM32\\clip.exe") is True
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assert fpaste.is_trusted_clipboard_path("C:\\Program Files\\tool.exe") is True
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def test_untrusted_windows_paths(self, fpaste):
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"""Paths in user-writable Windows directories should be rejected."""
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assert fpaste.is_trusted_clipboard_path("C:\\Users\\user\\xclip.exe") is False
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assert fpaste.is_trusted_clipboard_path("C:\\Temp\\malicious.exe") is False
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def test_find_clipboard_command_rejects_untrusted(self, fpaste):
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"""find_clipboard_command should reject tools in untrusted paths."""
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with patch("shutil.which") as mock_which:
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# Untrusted path should be rejected
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mock_which.return_value = "/tmp/malicious/xclip" # noqa: S108
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result = fpaste.find_clipboard_command(fpaste.CLIPBOARD_READ_COMMANDS)
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assert result is None
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def test_find_clipboard_command_accepts_trusted(self, fpaste):
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"""find_clipboard_command should accept tools in trusted paths."""
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with patch("shutil.which") as mock_which:
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# Trusted path should be accepted
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mock_which.return_value = "/usr/bin/xclip"
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result = fpaste.find_clipboard_command(fpaste.CLIPBOARD_READ_COMMANDS)
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assert result is not None
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assert result[0] == "/usr/bin/xclip"
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def test_find_clipboard_uses_absolute_path(self, fpaste):
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"""find_clipboard_command should use absolute paths."""
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with patch("shutil.which") as mock_which:
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mock_which.return_value = "/usr/bin/xclip"
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result = fpaste.find_clipboard_command(fpaste.CLIPBOARD_READ_COMMANDS)
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# Should use absolute path, not just tool name
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assert result[0] == "/usr/bin/xclip"
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# Rest of command args should be preserved
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assert "-selection" in result
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assert "clipboard" in result
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