Files
nanobot/tests/test_exec_security.py

70 lines
2.3 KiB
Python

"""Tests for exec tool internal URL blocking."""
from __future__ import annotations
import socket
from unittest.mock import patch
import pytest
from nanobot.agent.tools.shell import ExecTool
def _fake_resolve_private(hostname, port, family=0, type_=0):
return [(socket.AF_INET, socket.SOCK_STREAM, 0, "", ("169.254.169.254", 0))]
def _fake_resolve_localhost(hostname, port, family=0, type_=0):
return [(socket.AF_INET, socket.SOCK_STREAM, 0, "", ("127.0.0.1", 0))]
def _fake_resolve_public(hostname, port, family=0, type_=0):
return [(socket.AF_INET, socket.SOCK_STREAM, 0, "", ("93.184.216.34", 0))]
@pytest.mark.asyncio
async def test_exec_blocks_curl_metadata():
tool = ExecTool()
with patch("nanobot.security.network.socket.getaddrinfo", _fake_resolve_private):
result = await tool.execute(
command='curl -s -H "Metadata-Flavor: Google" http://169.254.169.254/computeMetadata/v1/'
)
assert "Error" in result
assert "internal" in result.lower() or "private" in result.lower()
@pytest.mark.asyncio
async def test_exec_blocks_wget_localhost():
tool = ExecTool()
with patch("nanobot.security.network.socket.getaddrinfo", _fake_resolve_localhost):
result = await tool.execute(command="wget http://localhost:8080/secret -O /tmp/out")
assert "Error" in result
@pytest.mark.asyncio
async def test_exec_allows_normal_commands():
tool = ExecTool(timeout=5)
result = await tool.execute(command="echo hello")
assert "hello" in result
assert "Error" not in result.split("\n")[0]
@pytest.mark.asyncio
async def test_exec_allows_curl_to_public_url():
"""Commands with public URLs should not be blocked by the internal URL check."""
tool = ExecTool()
with patch("nanobot.security.network.socket.getaddrinfo", _fake_resolve_public):
guard_result = tool._guard_command("curl https://example.com/api", "/tmp")
assert guard_result is None
@pytest.mark.asyncio
async def test_exec_blocks_chained_internal_url():
"""Internal URLs buried in chained commands should still be caught."""
tool = ExecTool()
with patch("nanobot.security.network.socket.getaddrinfo", _fake_resolve_private):
result = await tool.execute(
command="echo start && curl http://169.254.169.254/latest/meta-data/ && echo done"
)
assert "Error" in result