mirror of
https://github.com/CloakHQ/CloakBrowser.git
synced 2026-06-23 11:41:46 +02:00
906 lines
39 KiB
Python
906 lines
39 KiB
Python
"""Tests for auto-update and version management."""
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from __future__ import annotations
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import base64
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import hashlib
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import os
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from pathlib import Path
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from unittest.mock import MagicMock, patch
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import pytest
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from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
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from cloakbrowser.config import (
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CHROMIUM_VERSION,
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_version_newer,
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_version_tuple,
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get_chromium_version,
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get_download_url,
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get_effective_version,
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get_platform_tag,
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)
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from cloakbrowser.download import (
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BinaryVerificationError,
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_check_wrapper_update,
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_download_and_extract,
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_download_pro_binary,
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_fetch_checksums,
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_fetch_signed_manifest,
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_get_latest_chromium_version,
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_parse_checksums,
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_parse_manifest_version,
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_should_check_for_update,
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_verify_checksum,
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_verify_download_checksum,
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_verify_pro_download,
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_verify_signature,
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_write_version_marker,
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check_for_update,
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clear_cache,
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ensure_binary,
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)
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class TestVersionComparison:
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def test_version_tuple_parsing(self):
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assert _version_tuple("145.0.7718.0") == (145, 0, 7718, 0)
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assert _version_tuple("142.0.7444.175") == (142, 0, 7444, 175)
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def test_newer_version(self):
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assert _version_newer("145.0.7718.0", "142.0.7444.175") is True
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def test_older_version(self):
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assert _version_newer("142.0.7444.175", "145.0.7718.0") is False
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def test_same_version(self):
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assert _version_newer("142.0.7444.175", "142.0.7444.175") is False
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def test_patch_bump(self):
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assert _version_newer("142.0.7444.176", "142.0.7444.175") is True
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def test_major_bump(self):
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assert _version_newer("143.0.0.0", "142.9.9999.999") is True
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def test_5th_segment_parsing(self):
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assert _version_tuple("145.0.7632.109.2") == (145, 0, 7632, 109, 2)
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def test_build_bump(self):
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assert _version_newer("145.0.7632.109.3", "145.0.7632.109.2") is True
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def test_build_suffix_newer_than_no_suffix(self):
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assert _version_newer("145.0.7632.109.2", "145.0.7632.109") is True
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def test_no_suffix_older_than_build_suffix(self):
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assert _version_newer("145.0.7632.109", "145.0.7632.109.2") is False
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def test_new_chromium_beats_old_build(self):
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assert _version_newer("146.0.0.0", "145.0.7632.109.2") is True
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class TestDownloadUrl:
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def test_default_url_format(self):
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url = get_download_url()
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assert "cloakbrowser.dev" in url
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assert f"chromium-v{get_chromium_version()}" in url
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assert url.endswith(".tar.gz")
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def test_custom_version_url(self):
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url = get_download_url("145.0.7718.0")
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assert "chromium-v145.0.7718.0" in url
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def test_no_old_repo_reference(self):
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url = get_download_url()
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assert "chromium-stealth-builds" not in url
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class TestShouldCheckForUpdate:
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def test_disabled_by_env(self):
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with patch.dict(os.environ, {"CLOAKBROWSER_AUTO_UPDATE": "false"}):
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assert _should_check_for_update() is False
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def test_disabled_by_env_case_insensitive(self):
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with patch.dict(os.environ, {"CLOAKBROWSER_AUTO_UPDATE": "False"}):
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assert _should_check_for_update() is False
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def test_disabled_by_binary_override(self):
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with patch.dict(os.environ, {"CLOAKBROWSER_BINARY_PATH": "/some/path"}):
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assert _should_check_for_update() is False
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def test_disabled_by_custom_download_url(self):
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with patch.dict(
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os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": "https://my-mirror.com"}
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):
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assert _should_check_for_update() is False
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def test_rate_limited(self, tmp_path):
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import time
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with patch.dict(
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os.environ,
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{
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"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
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"CLOAKBROWSER_BINARY_PATH": "",
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"CLOAKBROWSER_AUTO_UPDATE": "",
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"CLOAKBROWSER_DOWNLOAD_URL": "",
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},
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):
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check_file = tmp_path / ".last_update_check"
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check_file.write_text(str(time.time()))
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assert _should_check_for_update() is False
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def test_stale_rate_limit_allows_check(self, tmp_path):
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import time
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with patch.dict(
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os.environ,
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{
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"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
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"CLOAKBROWSER_BINARY_PATH": "",
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"CLOAKBROWSER_AUTO_UPDATE": "",
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"CLOAKBROWSER_DOWNLOAD_URL": "",
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},
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):
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check_file = tmp_path / ".last_update_check"
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check_file.write_text(str(time.time() - 7200)) # 2 hours ago
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assert _should_check_for_update() is True
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class TestEffectiveVersion:
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def test_no_marker_returns_platform_version(self, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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assert get_effective_version() == get_chromium_version()
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def test_marker_with_newer_version(self, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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marker = tmp_path / f"latest_version_{get_platform_tag()}"
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marker.write_text("999.0.0.0")
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# Binary doesn't exist, so should fall back
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assert get_effective_version() == get_chromium_version()
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def test_marker_with_older_version_ignored(self, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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marker = tmp_path / f"latest_version_{get_platform_tag()}"
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marker.write_text("100.0.0.0")
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assert get_effective_version() == get_chromium_version()
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class TestGetLatestVersion:
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"""Tests for _get_latest_chromium_version with platform-aware asset checking."""
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def _make_assets(self, platforms: list[str]) -> list[dict]:
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"""Helper to build asset list from platform tags."""
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return [{"name": f"cloakbrowser-{p}.tar.gz"} for p in platforms]
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def _platform_tarball(self) -> str:
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return f"cloakbrowser-{get_platform_tag()}.tar.gz"
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def test_parses_chromium_tag_with_platform_asset(self):
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mock_response = MagicMock()
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mock_response.json.return_value = [
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{
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"tag_name": "chromium-v145.0.7718.0",
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"draft": False,
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"assets": self._make_assets(["linux-x64", "darwin-arm64", "darwin-x64", "windows-x64"]),
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},
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]
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mock_response.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_response):
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result = _get_latest_chromium_version()
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assert result == "145.0.7718.0"
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def test_skips_release_without_platform_asset(self):
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"""If latest release has no asset for our platform, fall back to older release."""
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mock_response = MagicMock()
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mock_response.json.return_value = [
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{
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"tag_name": "chromium-v145.0.7718.0",
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"draft": False,
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"assets": self._make_assets(["linux-x64"]), # Linux only
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},
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{
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"tag_name": "chromium-v142.0.7444.175",
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"draft": False,
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"assets": self._make_assets(["linux-x64", "darwin-arm64", "darwin-x64", "windows-x64"]),
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},
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]
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mock_response.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_response):
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result = _get_latest_chromium_version()
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tag = get_platform_tag()
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if tag == "linux-x64":
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assert result == "145.0.7718.0"
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else:
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assert result == "142.0.7444.175"
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def test_skips_draft_releases(self):
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mock_response = MagicMock()
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all_platforms = ["linux-x64", "darwin-arm64", "darwin-x64", "windows-x64"]
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mock_response.json.return_value = [
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{"tag_name": "chromium-v999.0.0.0", "draft": True, "assets": self._make_assets(all_platforms)},
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{"tag_name": "chromium-v145.0.7718.0", "draft": False, "assets": self._make_assets(all_platforms)},
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]
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mock_response.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_response):
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result = _get_latest_chromium_version()
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assert result == "145.0.7718.0"
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def test_skips_non_chromium_tags(self):
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mock_response = MagicMock()
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all_platforms = ["linux-x64", "darwin-arm64", "darwin-x64", "windows-x64"]
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mock_response.json.return_value = [
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{"tag_name": "v0.2.0", "draft": False, "assets": self._make_assets(all_platforms)},
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{"tag_name": "chromium-v145.0.7718.0", "draft": False, "assets": self._make_assets(all_platforms)},
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]
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mock_response.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_response):
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result = _get_latest_chromium_version()
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assert result == "145.0.7718.0"
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def test_returns_none_when_no_platform_assets(self):
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"""If no release has our platform, return None."""
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mock_response = MagicMock()
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mock_response.json.return_value = [
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{
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"tag_name": "chromium-v145.0.7718.0",
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"draft": False,
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"assets": [{"name": "cloakbrowser-freebsd-x64.tar.gz"}],
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},
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]
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mock_response.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_response):
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result = _get_latest_chromium_version()
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assert result is None
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def test_network_error_returns_none(self):
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with patch("cloakbrowser.download.httpx.get", side_effect=Exception("timeout")):
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result = _get_latest_chromium_version()
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assert result is None
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class TestWrapperUpdateCheck:
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"""Tests for _check_wrapper_update (PyPI version check)."""
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def setup_method(self):
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import cloakbrowser.download as dl
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dl._wrapper_update_checked = False
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def test_warns_when_newer_version_available(self, caplog):
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mock_resp = MagicMock()
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mock_resp.json.return_value = {"info": {"version": "99.0.0"}}
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mock_resp.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_resp):
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import logging
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with caplog.at_level(logging.WARNING):
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_check_wrapper_update()
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assert "Update available" in caplog.text
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assert "99.0.0" in caplog.text
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def test_silent_when_current(self, caplog):
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import cloakbrowser.download as dl
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mock_resp = MagicMock()
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mock_resp.json.return_value = {"info": {"version": dl._wrapper_version}}
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mock_resp.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_resp):
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import logging
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with caplog.at_level(logging.WARNING):
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_check_wrapper_update()
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assert "Update available" not in caplog.text
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def test_disabled_by_auto_update_env(self):
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with patch.dict(os.environ, {"CLOAKBROWSER_AUTO_UPDATE": "false"}):
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with patch("cloakbrowser.download.httpx.get") as mock_get:
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_check_wrapper_update()
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mock_get.assert_not_called()
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def test_disabled_by_custom_download_url(self):
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with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": "https://mirror.example.com"}):
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with patch("cloakbrowser.download.httpx.get") as mock_get:
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_check_wrapper_update()
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mock_get.assert_not_called()
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def test_network_error_silent(self, caplog):
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with patch("cloakbrowser.download.httpx.get", side_effect=Exception("timeout")):
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import logging
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with caplog.at_level(logging.WARNING):
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_check_wrapper_update()
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assert "Update available" not in caplog.text
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def test_runs_only_once(self):
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mock_resp = MagicMock()
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mock_resp.json.return_value = {"info": {"version": "0.0.1"}}
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mock_resp.raise_for_status = MagicMock()
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with patch("cloakbrowser.download.httpx.get", return_value=mock_resp) as mock_get:
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_check_wrapper_update()
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_check_wrapper_update()
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assert mock_get.call_count == 1
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class TestParseChecksums:
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HASH_A = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
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HASH_B = "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2"
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def test_standard_format(self):
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text = (
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f"{self.HASH_A} cloakbrowser-linux-x64.tar.gz\n"
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f"{self.HASH_B} cloakbrowser-darwin-arm64.tar.gz\n"
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)
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result = _parse_checksums(text)
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assert result["cloakbrowser-linux-x64.tar.gz"] == self.HASH_A
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assert result["cloakbrowser-darwin-arm64.tar.gz"] == self.HASH_B
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def test_binary_mode_asterisk(self):
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text = f"{self.HASH_A} *cloakbrowser-linux-x64.tar.gz\n"
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result = _parse_checksums(text)
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assert "cloakbrowser-linux-x64.tar.gz" in result
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def test_empty_lines_skipped(self):
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text = f"\n\n{self.HASH_A} file.tar.gz\n\n"
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result = _parse_checksums(text)
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assert len(result) == 1
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def test_uppercase_lowered(self):
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text = f"{self.HASH_A.upper()} file.tar.gz\n"
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result = _parse_checksums(text)
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assert result["file.tar.gz"] == self.HASH_A
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def test_empty_input(self):
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assert _parse_checksums("") == {}
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assert _parse_checksums(" \n \n") == {}
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class TestVerifyChecksum:
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def test_matching_checksum(self, tmp_path):
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content = b"test binary content"
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file = tmp_path / "test.tar.gz"
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file.write_bytes(content)
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expected = hashlib.sha256(content).hexdigest()
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# Should not raise
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_verify_checksum(file, expected)
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def test_mismatched_checksum(self, tmp_path):
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file = tmp_path / "test.tar.gz"
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file.write_bytes(b"real content")
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with pytest.raises(RuntimeError, match="Checksum verification failed"):
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_verify_checksum(file, "0" * 64)
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class TestClearCache:
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def test_removes_dir(self, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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# Create some content
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(tmp_path / "chromium-145").mkdir()
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(tmp_path / "chromium-145" / "chrome").write_bytes(b"binary")
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clear_cache()
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assert not tmp_path.exists()
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def test_noop_if_missing(self, tmp_path):
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nonexistent = tmp_path / "nonexistent"
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(nonexistent)}):
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clear_cache() # Should not raise
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class TestCheckForUpdate:
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@patch("cloakbrowser.download._maybe_trigger_update_check")
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def test_returns_none_when_current(self, _mock_update):
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with patch("cloakbrowser.download._get_latest_chromium_version", return_value=None):
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assert check_for_update() is None
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@patch("cloakbrowser.download._maybe_trigger_update_check")
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def test_returns_none_on_network_error(self, _mock_update):
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with patch("cloakbrowser.download._get_latest_chromium_version", side_effect=Exception("timeout")):
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# _get_latest_chromium_version catches exceptions internally, but
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# check_for_update itself can also fail — test graceful None return
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with patch("cloakbrowser.download._get_latest_chromium_version", return_value=None):
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assert check_for_update() is None
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@patch("cloakbrowser.download._maybe_trigger_update_check")
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def test_returns_version_when_newer(self, _mock_update, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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with patch("cloakbrowser.download._get_latest_chromium_version", return_value="999.0.0.0"):
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with patch("cloakbrowser.download._download_and_extract"):
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result = check_for_update()
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assert result == "999.0.0.0"
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@patch("cloakbrowser.download._maybe_trigger_update_check")
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def test_skips_download_if_already_cached(self, _mock_update, tmp_path):
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with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
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# Create the binary dir so it looks already downloaded
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binary_dir = tmp_path / "chromium-999.0.0.0"
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binary_dir.mkdir()
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with patch("cloakbrowser.download._get_latest_chromium_version", return_value="999.0.0.0"):
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with patch("cloakbrowser.download._download_and_extract") as mock_dl:
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result = check_for_update()
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assert result == "999.0.0.0"
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mock_dl.assert_not_called()
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class TestEnsureBinary:
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@patch("cloakbrowser.download._maybe_trigger_update_check")
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def test_local_override(self, _mock_update, tmp_path):
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binary = tmp_path / "chrome"
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binary.write_bytes(b"binary")
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with patch.dict(os.environ, {"CLOAKBROWSER_BINARY_PATH": str(binary)}):
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result = ensure_binary()
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assert result == str(binary)
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@patch("cloakbrowser.download._maybe_trigger_update_check")
|
|
def test_local_override_missing_file(self, _mock_update):
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_BINARY_PATH": "/nonexistent/chrome"}):
|
|
with pytest.raises(FileNotFoundError, match="does not exist"):
|
|
ensure_binary()
|
|
|
|
@patch("cloakbrowser.download._maybe_trigger_update_check")
|
|
def test_cached_binary_found(self, _mock_update, tmp_path):
|
|
with patch.dict(os.environ, {
|
|
"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
|
|
"CLOAKBROWSER_BINARY_PATH": "",
|
|
}):
|
|
# Create a fake cached binary
|
|
version = get_chromium_version()
|
|
with patch("cloakbrowser.download.get_binary_path") as mock_path:
|
|
fake_binary = tmp_path / "chrome"
|
|
fake_binary.write_bytes(b"binary")
|
|
fake_binary.chmod(0o755)
|
|
mock_path.return_value = fake_binary
|
|
with patch("cloakbrowser.download.check_platform_available"):
|
|
result = ensure_binary()
|
|
assert result == str(fake_binary)
|
|
|
|
@patch("cloakbrowser.download._maybe_trigger_update_check")
|
|
def test_downloads_when_missing(self, _mock_update, tmp_path):
|
|
with patch.dict(os.environ, {
|
|
"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
|
|
"CLOAKBROWSER_BINARY_PATH": "",
|
|
}):
|
|
fake_binary = tmp_path / "chrome"
|
|
with patch("cloakbrowser.download.check_platform_available"):
|
|
with patch("cloakbrowser.download.get_binary_path") as mock_path:
|
|
# effective == platform_version (no marker), so fallback block skipped.
|
|
# Call 1: get_binary_path(effective) → nonexistent (triggers download)
|
|
# Call 2: get_binary_path() → fake_binary (post-download verify)
|
|
mock_path.side_effect = [
|
|
tmp_path / "nonexistent", # pre-download: not cached
|
|
fake_binary, # post-download: binary ready
|
|
]
|
|
with patch("cloakbrowser.download._download_and_extract") as mock_dl:
|
|
fake_binary.write_bytes(b"binary")
|
|
result = ensure_binary()
|
|
mock_dl.assert_called_once()
|
|
assert result == str(fake_binary)
|
|
|
|
|
|
class TestWriteVersionMarker:
|
|
def test_creates_file(self, tmp_path):
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_CACHE_DIR": str(tmp_path)}):
|
|
_write_version_marker("999.0.0.0")
|
|
marker = tmp_path / f"latest_version_{get_platform_tag()}"
|
|
assert marker.exists()
|
|
assert marker.read_text() == "999.0.0.0"
|
|
|
|
|
|
class TestDownloadFallback:
|
|
"""Verify primary server (cloakbrowser.dev) → GitHub Releases fallback on HTTP errors."""
|
|
|
|
def test_binary_download_falls_back_on_http_error(self, tmp_path):
|
|
"""HTTP error from primary triggers GitHub Releases fallback for binary download."""
|
|
with patch.dict(os.environ, {
|
|
"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
|
|
"CLOAKBROWSER_DOWNLOAD_URL": "",
|
|
}):
|
|
urls_called = []
|
|
|
|
def mock_download_file(url, dest):
|
|
urls_called.append(url)
|
|
if "cloakbrowser.dev" in url:
|
|
raise Exception("HTTP 429 Too Many Requests")
|
|
# GitHub fallback succeeds
|
|
dest.write_bytes(b"fake")
|
|
|
|
# This test exercises URL fallback, not verification — stub the
|
|
# (now signature-based, non-bypassable) verify step.
|
|
with patch("cloakbrowser.download._download_file", side_effect=mock_download_file), \
|
|
patch("cloakbrowser.download._verify_download_checksum"), \
|
|
patch("cloakbrowser.download._extract_archive"), \
|
|
patch("cloakbrowser.download._show_welcome"):
|
|
_download_and_extract()
|
|
|
|
assert len(urls_called) == 2
|
|
assert "cloakbrowser.dev" in urls_called[0]
|
|
assert "github.com" in urls_called[1]
|
|
|
|
def test_binary_download_no_fallback_with_custom_url(self, tmp_path):
|
|
"""Custom CLOAKBROWSER_DOWNLOAD_URL disables GitHub fallback — error propagates."""
|
|
with patch.dict(os.environ, {
|
|
"CLOAKBROWSER_CACHE_DIR": str(tmp_path),
|
|
"CLOAKBROWSER_DOWNLOAD_URL": "https://my-mirror.com/releases",
|
|
"CLOAKBROWSER_SKIP_CHECKSUM": "true",
|
|
}):
|
|
with patch("cloakbrowser.download._download_file", side_effect=Exception("503")):
|
|
with pytest.raises(Exception, match="503"):
|
|
_download_and_extract()
|
|
|
|
def test_checksum_fetch_falls_back_on_http_error(self):
|
|
"""HTTP error from primary checksum URL triggers GitHub fallback."""
|
|
valid_checksums = (
|
|
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
|
|
" cloakbrowser-linux-x64.tar.gz\n"
|
|
)
|
|
|
|
def mock_get(url, **kwargs):
|
|
resp = MagicMock()
|
|
if "cloakbrowser.dev" in url:
|
|
resp.raise_for_status.side_effect = Exception("HTTP 429")
|
|
return resp
|
|
# GitHub URL succeeds
|
|
resp.text = valid_checksums
|
|
resp.raise_for_status = MagicMock()
|
|
return resp
|
|
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}):
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=mock_get):
|
|
result = _fetch_checksums()
|
|
|
|
assert result is not None
|
|
assert "cloakbrowser-linux-x64.tar.gz" in result
|
|
|
|
def test_checksum_fetch_returns_none_when_both_fail(self):
|
|
"""Both primary and GitHub checksum URLs fail → returns None (skip verification)."""
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}):
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=Exception("network error")):
|
|
result = _fetch_checksums()
|
|
|
|
assert result is None
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Signed-manifest verification (Ed25519). Trust root is the pinned public key,
|
|
# not the same-origin SHA256SUMS — this is what closes M1 (#308).
|
|
# ---------------------------------------------------------------------------
|
|
def _make_key():
|
|
priv = Ed25519PrivateKey.generate()
|
|
from cryptography.hazmat.primitives import serialization
|
|
|
|
raw = priv.public_key().public_bytes(
|
|
encoding=serialization.Encoding.Raw,
|
|
format=serialization.PublicFormat.Raw,
|
|
)
|
|
return priv, base64.b64encode(raw).decode()
|
|
|
|
|
|
def _sign(priv, manifest_bytes: bytes) -> bytes:
|
|
"""Return SHA256SUMS.sig content (base64 of the raw signature), as served."""
|
|
return base64.b64encode(priv.sign(manifest_bytes))
|
|
|
|
|
|
class TestSignatureVerification:
|
|
"""_verify_signature: the cryptographic gate over the raw manifest bytes."""
|
|
|
|
def test_valid_signature_passes(self):
|
|
priv, pub_b64 = _make_key()
|
|
manifest = b"abc cloakbrowser-linux-x64.tar.gz\n"
|
|
sig = _sign(priv, manifest)
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]):
|
|
_verify_signature(manifest, sig) # no raise
|
|
|
|
def test_tampered_manifest_fails(self):
|
|
priv, pub_b64 = _make_key()
|
|
manifest = b"abc cloakbrowser-linux-x64.tar.gz\n"
|
|
sig = _sign(priv, manifest)
|
|
tampered = manifest.replace(b"abc", b"xyz")
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]):
|
|
with pytest.raises(RuntimeError, match="signature verification failed"):
|
|
_verify_signature(tampered, sig)
|
|
|
|
def test_wrong_key_fails(self):
|
|
priv, _ = _make_key()
|
|
_, other_pub = _make_key()
|
|
manifest = b"data\n"
|
|
sig = _sign(priv, manifest)
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [other_pub]):
|
|
with pytest.raises(RuntimeError, match="signature verification failed"):
|
|
_verify_signature(manifest, sig)
|
|
|
|
def test_malformed_signature_fails(self):
|
|
_, pub_b64 = _make_key()
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]):
|
|
with pytest.raises(RuntimeError, match="Malformed"):
|
|
_verify_signature(b"data\n", b"!!!not base64!!!")
|
|
|
|
def test_placeholder_key_is_skipped_not_crashing(self):
|
|
"""An unparseable pinned key (placeholder) must not abort — a real key still validates."""
|
|
priv, pub_b64 = _make_key()
|
|
manifest = b"data\n"
|
|
sig = _sign(priv, manifest)
|
|
with patch(
|
|
"cloakbrowser.download.BINARY_SIGNING_PUBKEYS",
|
|
["REPLACE_WITH_REAL_ED25519_PUBLIC_KEY_BASE64", pub_b64],
|
|
):
|
|
_verify_signature(manifest, sig) # no raise
|
|
|
|
def test_key_rotation_second_key_accepts(self):
|
|
"""A manifest signed with the new key validates while the old key stays pinned."""
|
|
old_priv, old_pub = _make_key()
|
|
new_priv, new_pub = _make_key()
|
|
manifest = b"rotated\n"
|
|
sig = _sign(new_priv, manifest)
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [old_pub, new_pub]):
|
|
_verify_signature(manifest, sig) # no raise
|
|
|
|
|
|
class TestVerifyDownloadChecksumSigned:
|
|
"""_verify_download_checksum on the official path: signature + version + hash, fail-closed."""
|
|
|
|
def _hash(self, data: bytes) -> str:
|
|
return hashlib.sha256(data).hexdigest()
|
|
|
|
def _manifest(self, body: str, version: str | None = None) -> bytes:
|
|
"""Build a signed-manifest body with the bound version line prepended."""
|
|
v = version if version is not None else get_chromium_version()
|
|
return f"version={v}\n{body}".encode()
|
|
|
|
def test_valid_manifest_and_hash_passes(self, tmp_path):
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real binary")
|
|
tarball = get_download_url().rsplit("/", 1)[-1]
|
|
manifest = self._manifest(f"{self._hash(b'the real binary')} {tarball}\n")
|
|
sig = _sign(priv, manifest)
|
|
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=(manifest, sig)):
|
|
_verify_download_checksum(archive) # no raise
|
|
|
|
def test_tampered_binary_fails_hash(self, tmp_path):
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"a malicious binary") # different bytes
|
|
tarball = get_download_url().rsplit("/", 1)[-1]
|
|
manifest = self._manifest(f"{self._hash(b'the real binary')} {tarball}\n")
|
|
sig = _sign(priv, manifest)
|
|
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="Checksum verification failed"):
|
|
_verify_download_checksum(archive)
|
|
|
|
def test_wrong_version_fails_downgrade(self, tmp_path):
|
|
"""A genuinely-signed manifest for a DIFFERENT version is rejected (downgrade)."""
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real binary")
|
|
tarball = get_download_url().rsplit("/", 1)[-1]
|
|
# Manifest declares an old version, but we ask for get_chromium_version().
|
|
manifest = self._manifest(
|
|
f"{self._hash(b'the real binary')} {tarball}\n", version="1.0.0.0"
|
|
)
|
|
sig = _sign(priv, manifest)
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="Version mismatch"):
|
|
_verify_download_checksum(archive)
|
|
|
|
def test_missing_version_line_fails(self, tmp_path):
|
|
"""A signed manifest without a version line is rejected (binding required)."""
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real binary")
|
|
tarball = get_download_url().rsplit("/", 1)[-1]
|
|
manifest = f"{self._hash(b'the real binary')} {tarball}\n".encode() # no version=
|
|
sig = _sign(priv, manifest)
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="Version mismatch"):
|
|
_verify_download_checksum(archive)
|
|
|
|
def test_missing_signed_manifest_fails_closed(self, tmp_path):
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"x")
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=None):
|
|
with pytest.raises(RuntimeError, match="signed SHA256SUMS"):
|
|
_verify_download_checksum(archive)
|
|
|
|
def test_manifest_without_entry_fails(self, tmp_path):
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"x")
|
|
manifest = self._manifest("deadbeef some-other-file.tar.gz\n") # no entry for our tarball
|
|
sig = _sign(priv, manifest)
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_DOWNLOAD_URL": ""}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download._fetch_signed_manifest", return_value=(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="no entry for"):
|
|
_verify_download_checksum(archive)
|
|
|
|
def test_custom_url_uses_plain_checksum_and_skip(self, tmp_path):
|
|
"""Self-hosted CLOAKBROWSER_DOWNLOAD_URL keeps the legacy skippable path."""
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"x")
|
|
with patch.dict(os.environ, {
|
|
"CLOAKBROWSER_DOWNLOAD_URL": "https://my-mirror.test",
|
|
"CLOAKBROWSER_SKIP_CHECKSUM": "true",
|
|
}):
|
|
# Signature path must NOT be consulted for a custom mirror.
|
|
with patch("cloakbrowser.download._fetch_signed_manifest") as mocked:
|
|
_verify_download_checksum(archive) # skip honored, no raise
|
|
mocked.assert_not_called()
|
|
|
|
|
|
class TestVerifyProDownloadSigned:
|
|
"""_verify_pro_download: Pro binaries get the SAME non-bypassable signature
|
|
check as the free official path (parity — closes the Pro M1 gap)."""
|
|
|
|
PRO_VERSION = "147.0.1.0"
|
|
|
|
def _hash(self, data: bytes) -> str:
|
|
return hashlib.sha256(data).hexdigest()
|
|
|
|
def _tarball(self) -> str:
|
|
return get_download_url().rsplit("/", 1)[-1]
|
|
|
|
def _mock_fetch(self, manifest: bytes, sig: bytes):
|
|
"""httpx.get stub: returns the .sig for *.sig URLs, manifest otherwise."""
|
|
def mock_get(url, **kwargs):
|
|
resp = MagicMock()
|
|
resp.raise_for_status = MagicMock()
|
|
resp.content = sig if url.endswith(".sig") else manifest
|
|
return resp
|
|
return mock_get
|
|
|
|
def test_valid_pro_manifest_passes(self, tmp_path):
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real pro binary")
|
|
manifest = (
|
|
f"version={self.PRO_VERSION}\n"
|
|
f"{self._hash(b'the real pro binary')} {self._tarball()}\n"
|
|
).encode()
|
|
sig = _sign(priv, manifest)
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download.httpx.get", side_effect=self._mock_fetch(manifest, sig)):
|
|
_verify_pro_download(archive, self.PRO_VERSION) # no raise
|
|
|
|
def test_skip_checksum_does_not_bypass(self, tmp_path):
|
|
"""CLOAKBROWSER_SKIP_CHECKSUM must NOT weaken Pro verification (the point)."""
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"a malicious pro binary") # bytes differ from manifest
|
|
manifest = (
|
|
f"version={self.PRO_VERSION}\n"
|
|
f"{self._hash(b'the real pro binary')} {self._tarball()}\n"
|
|
).encode()
|
|
sig = _sign(priv, manifest)
|
|
with patch.dict(os.environ, {"CLOAKBROWSER_SKIP_CHECKSUM": "true"}), \
|
|
patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download.httpx.get", side_effect=self._mock_fetch(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="Checksum verification failed"):
|
|
_verify_pro_download(archive, self.PRO_VERSION)
|
|
|
|
def test_missing_manifest_is_transient_not_tampering(self, tmp_path):
|
|
"""A failed manifest FETCH is transient (router falls back to free), so it
|
|
must be a plain RuntimeError — NOT a BinaryVerificationError, which the
|
|
router re-raises as a hard failure."""
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"x")
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=Exception("404")):
|
|
with pytest.raises(RuntimeError) as ei:
|
|
_verify_pro_download(archive, self.PRO_VERSION)
|
|
assert not isinstance(ei.value, BinaryVerificationError)
|
|
|
|
def test_wrong_version_fails_downgrade(self, tmp_path):
|
|
"""A genuinely-signed Pro manifest for a DIFFERENT version is rejected."""
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real pro binary")
|
|
manifest = (
|
|
f"version=1.0.0.0\n" # declares old version, we ask for PRO_VERSION
|
|
f"{self._hash(b'the real pro binary')} {self._tarball()}\n"
|
|
).encode()
|
|
sig = _sign(priv, manifest)
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download.httpx.get", side_effect=self._mock_fetch(manifest, sig)):
|
|
with pytest.raises(RuntimeError, match="Version mismatch"):
|
|
_verify_pro_download(archive, self.PRO_VERSION)
|
|
|
|
def test_tampered_manifest_fails_signature(self, tmp_path):
|
|
"""A manifest tampered after signing fails the signature gate (not the hash)."""
|
|
priv, pub_b64 = _make_key()
|
|
archive = tmp_path / "binary"
|
|
archive.write_bytes(b"the real pro binary")
|
|
manifest = (
|
|
f"version={self.PRO_VERSION}\n"
|
|
f"{self._hash(b'the real pro binary')} {self._tarball()}\n"
|
|
).encode()
|
|
sig = _sign(priv, manifest)
|
|
tampered = manifest.replace(self._tarball().encode(), b"evil.tar.gz")
|
|
with patch("cloakbrowser.download.BINARY_SIGNING_PUBKEYS", [pub_b64]), \
|
|
patch("cloakbrowser.download.httpx.get", side_effect=self._mock_fetch(tampered, sig)):
|
|
with pytest.raises(RuntimeError, match="signature verification failed"):
|
|
_verify_pro_download(archive, self.PRO_VERSION)
|
|
|
|
|
|
class TestProDownloadVersionPinned:
|
|
"""The Pro download must request the explicit version, NOT /latest, so the
|
|
served artifact matches the version-pinned signed manifest it's verified
|
|
against (no latest-advances TOCTOU)."""
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def test_download_url_is_version_pinned(self):
|
|
from cloakbrowser.config import DOWNLOAD_BASE_URL
|
|
|
|
captured = {}
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|
|
|
def fake_download_file(url, dest, headers=None):
|
|
captured["url"] = url
|
|
|
|
with patch("cloakbrowser.download._download_file", side_effect=fake_download_file), \
|
|
patch("cloakbrowser.download._verify_pro_download"), \
|
|
patch("cloakbrowser.download._extract_archive"):
|
|
_download_pro_binary("147.0.1.0", "cb_key")
|
|
|
|
assert captured["url"] == f"{DOWNLOAD_BASE_URL}/api/download/147.0.1.0"
|
|
assert not captured["url"].endswith("/latest")
|
|
|
|
|
|
class TestVersionBinding:
|
|
"""The 'version=<v>' line: read by new wrappers, ignored by old parsers."""
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|
|
|
def test_parse_manifest_version(self):
|
|
manifest = "version=146.0.7680.177.5\nabc cloakbrowser-linux-x64.tar.gz\n"
|
|
assert _parse_manifest_version(manifest) == "146.0.7680.177.5"
|
|
|
|
def test_parse_manifest_version_absent(self):
|
|
assert _parse_manifest_version("abc cloakbrowser-linux-x64.tar.gz\n") is None
|
|
|
|
def test_old_checksum_parser_ignores_version_line(self):
|
|
"""Regression: the version line must not pollute the old hash map."""
|
|
h = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
|
|
manifest = f"version=146.0.7680.177.5\n{h} cloakbrowser-linux-x64.tar.gz\n"
|
|
result = _parse_checksums(manifest)
|
|
assert result == {"cloakbrowser-linux-x64.tar.gz": h}
|
|
|
|
|
|
class TestFetchSignedManifest:
|
|
"""_fetch_signed_manifest pairs SHA256SUMS + .sig from the same origin."""
|
|
|
|
def test_fetches_both_from_primary(self):
|
|
def mock_get(url, **kwargs):
|
|
resp = MagicMock()
|
|
resp.raise_for_status = MagicMock()
|
|
resp.content = b"SIG" if url.endswith(".sig") else b"MANIFEST"
|
|
return resp
|
|
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=mock_get):
|
|
result = _fetch_signed_manifest("1.2.3.4")
|
|
assert result == (b"MANIFEST", b"SIG")
|
|
|
|
def test_falls_back_to_github_when_primary_missing_sig(self):
|
|
def mock_get(url, **kwargs):
|
|
resp = MagicMock()
|
|
resp.content = b"SIG" if url.endswith(".sig") else b"MANIFEST"
|
|
if "cloakbrowser.dev" in url and url.endswith(".sig"):
|
|
resp.raise_for_status.side_effect = Exception("404")
|
|
else:
|
|
resp.raise_for_status = MagicMock()
|
|
return resp
|
|
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=mock_get):
|
|
result = _fetch_signed_manifest("1.2.3.4")
|
|
assert result == (b"MANIFEST", b"SIG")
|
|
|
|
def test_returns_none_when_all_fail(self):
|
|
with patch("cloakbrowser.download.httpx.get", side_effect=Exception("network")):
|
|
assert _fetch_signed_manifest("1.2.3.4") is None
|