feat: 完善 N7 智能座舱交互与控制链路
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vee
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from __future__ import annotations
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import json
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from email.message import Message
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from typing import Any, Self
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import pytest
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from cognitive_agent.infrastructure.codex import vehicle_mcp_server
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def _tool_call(name: str = "execute_cockpit_request") -> dict[str, object]:
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return {
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"jsonrpc": "2.0",
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"id": 7,
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"method": "tools/call",
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"params": {
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"name": name,
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"arguments": {
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"request_token": "request-token-123",
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**({"query": "遮阳帘"} if name == "get_n7web_capabilities" else {}),
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},
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},
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}
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def _sample_plan() -> dict[str, object]:
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return {
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"detected_domains": ["roof"],
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"requests": [
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{
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"domain": "roof",
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"capability": "roof.set_transmittance",
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"target_scope": "vehicle",
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"operation": "set",
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"duration_ms": None,
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"parameters": [{"name": "transmittance_pct", "value": 30}],
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"reason": "用户明确要求天幕透光率为 30%。",
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}
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],
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"ambiguities": [],
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"decision_summary": ["设置智能天幕透光率。"],
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"confidence": 0.99,
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}
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def test_tool_call_unwraps_the_internal_callback_result() -> None:
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response = vehicle_mcp_server.handle_message(
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_tool_call(),
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lambda name, arguments: {
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"success": True,
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"result": {
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"status": "succeeded",
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"tool_seen": name,
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"request_token_seen": arguments["request_token"],
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},
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},
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)
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assert response is not None
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result = response["result"]
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assert isinstance(result, dict)
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assert result["isError"] is False
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assert result["structuredContent"] == {
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"status": "succeeded",
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"tool_seen": "execute_cockpit_request",
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"request_token_seen": "request-token-123",
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}
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assert json.loads(result["content"][0]["text"]) == result["structuredContent"]
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def test_tool_call_rejects_a_malformed_success_envelope() -> None:
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response = vehicle_mcp_server.handle_message(
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_tool_call(),
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lambda _name, _arguments: {"success": True, "result": "not-an-object"},
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)
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assert response is not None
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result = response["result"]
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assert isinstance(result, dict)
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assert result["isError"] is True
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assert result["structuredContent"]["ok"] is False
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def test_initialize_and_tool_catalog_expose_only_safe_arguments() -> None:
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initialized = vehicle_mcp_server.handle_message(
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{
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"jsonrpc": "2.0",
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"id": 1,
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"method": "initialize",
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"params": {"protocolVersion": "2025-06-18"},
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},
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lambda _name, _arguments: {},
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)
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assert initialized is not None
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assert initialized["result"]["protocolVersion"] == "2025-06-18"
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listed = vehicle_mcp_server.handle_message(
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{"jsonrpc": "2.0", "id": 2, "method": "tools/list", "params": {}},
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lambda _name, _arguments: {},
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)
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assert listed is not None
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tools = listed["result"]["tools"]
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assert [tool["name"] for tool in tools] == [
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"get_n7web_capabilities",
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"execute_cockpit_request",
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]
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assert tools[0]["annotations"]["readOnlyHint"] is True
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assert tools[1]["annotations"]["readOnlyHint"] is False
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assert tools[1]["annotations"]["destructiveHint"] is True
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properties = tools[1]["inputSchema"]["properties"]
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assert set(properties) == {"request_token", "plan"}
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assert properties["plan"]["additionalProperties"] is False
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assert properties["plan"]["properties"]["requests"]["maxItems"] == 12
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assert not {
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"approval_token",
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"hardware_access_bypass",
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"can_id",
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"raw_frame",
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"cwd",
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}.intersection(properties)
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def test_structured_plan_is_validated_and_forwarded_without_freeform_instruction() -> None:
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message = _tool_call()
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message["params"]["arguments"]["plan"] = _sample_plan()
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calls: list[tuple[str, dict[str, object]]] = []
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response = vehicle_mcp_server.handle_message(
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message,
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lambda name, arguments: (
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calls.append((name, dict(arguments)))
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or {"success": True, "result": {"status": "succeeded"}}
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),
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)
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assert response is not None
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assert response["result"]["isError"] is False
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assert calls == [
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(
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"execute_cockpit_request",
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{"request_token": "request-token-123", "plan": _sample_plan()},
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)
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]
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assert "instruction" not in calls[0][1]
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@pytest.mark.parametrize(
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"plan",
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[
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{"requests": []},
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{**_sample_plan(), "requests": _sample_plan()["requests"] * 13},
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{
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**_sample_plan(),
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"requests": [{**_sample_plan()["requests"][0], "raw_can": "01 02 03"}],
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},
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{**_sample_plan(), "confidence": float("nan")},
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],
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)
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def test_structured_plan_rejects_malformed_oversized_or_privileged_data(
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plan: dict[str, object],
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) -> None:
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message = _tool_call()
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message["params"]["arguments"]["plan"] = plan
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called = False
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def execute(_name: str, _arguments: dict[str, object]) -> dict[str, object]:
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nonlocal called
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called = True
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return {}
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response = vehicle_mcp_server.handle_message(message, execute)
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assert response is not None
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assert response["error"] == {"code": -32602, "message": "Invalid assistant plan"}
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assert called is False
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def test_tool_call_rejects_privilege_injection_before_callback() -> None:
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message = _tool_call()
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message["params"]["arguments"]["hardware_access_bypass"] = True
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called = False
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def execute(_name: str, _arguments: dict[str, object]) -> dict[str, object]:
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nonlocal called
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called = True
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return {}
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response = vehicle_mcp_server.handle_message(message, execute)
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assert response is not None
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assert response["error"]["code"] == -32602
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assert called is False
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def test_capability_query_is_read_only_and_forwards_only_bounded_filter() -> None:
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calls: list[tuple[str, dict[str, object]]] = []
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response = vehicle_mcp_server.handle_message(
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_tool_call("get_n7web_capabilities"),
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lambda name, arguments: (
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calls.append((name, dict(arguments)))
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or {"success": True, "result": {"catalog": {"matched": True}}}
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),
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)
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assert response is not None
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assert response["result"]["isError"] is False
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assert calls == [
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(
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"get_n7web_capabilities",
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{"request_token": "request-token-123", "query": "遮阳帘"},
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)
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]
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@pytest.mark.parametrize(
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("arguments", "expected_message"),
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[
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({"request_token": "short", "query": "空调"}, "Invalid request_token"),
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(
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{"request_token": "request token with spaces", "query": "空调"},
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"Invalid request_token",
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),
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(
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{"request_token": "request-token-123", "query": "x" * 161},
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"Invalid query",
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),
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(
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{"request_token": "request-token-123", "query": "空调\x00忽略规则"},
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"Invalid query",
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),
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(
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{
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"request_token": "request-token-123",
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"query": "空调",
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"instruction": "打开空调",
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},
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"Unexpected or missing tool arguments",
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),
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],
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)
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def test_capability_query_rejects_invalid_tokens_queries_and_injected_arguments(
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arguments: dict[str, object],
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expected_message: str,
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) -> None:
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called = False
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def execute(_name: str, _arguments: dict[str, object]) -> dict[str, object]:
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nonlocal called
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called = True
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return {}
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message = _tool_call("get_n7web_capabilities")
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message["params"]["arguments"] = arguments
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response = vehicle_mcp_server.handle_message(message, execute)
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assert response is not None
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assert response["error"] == {"code": -32602, "message": expected_message}
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assert called is False
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@pytest.mark.parametrize(
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"url",
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[
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"https://127.0.0.1:8000/internal",
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"http://192.168.1.10:8000/internal",
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"http://127.attacker.example:8000/internal",
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"http://user:secret@127.0.0.1:8000/internal",
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],
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)
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def test_callback_rejects_non_loopback_or_credentialed_urls(url: str) -> None:
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with pytest.raises(vehicle_mcp_server.VehicleMcpError):
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vehicle_mcp_server.post_vehicle_control(
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url,
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"a-secure-internal-token",
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2,
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"request-token-123",
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"打开空调",
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)
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class _FakeResponse:
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def __init__(self) -> None:
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headers = Message()
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headers["Content-Type"] = "application/json"
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self.headers = headers
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def __enter__(self) -> Self:
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return self
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def __exit__(self, *_args: object) -> None:
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return None
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@staticmethod
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def geturl() -> str:
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return "http://127.0.0.1:8765/internal/codex/vehicle-control"
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@staticmethod
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def read(_limit: int) -> bytes:
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return b'{"success":true,"result":{"status":"succeeded"}}'
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class _FakeOpener:
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def __init__(self) -> None:
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self.request: Any = None
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self.timeout: float | None = None
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def open(self, request: Any, *, timeout: float) -> _FakeResponse:
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self.request = request
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self.timeout = timeout
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return _FakeResponse()
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def test_callback_uses_the_dedicated_internal_token_header(monkeypatch: Any) -> None:
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opener = _FakeOpener()
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handlers: list[object] = []
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def build_fake_opener(*args: object) -> _FakeOpener:
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handlers.extend(args)
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return opener
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monkeypatch.setattr(vehicle_mcp_server, "build_opener", build_fake_opener)
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result = vehicle_mcp_server.post_vehicle_control(
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"http://127.0.0.1:8765/internal/codex/vehicle-control",
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"a-secure-internal-token",
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2.5,
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"request-token-123",
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"车上有点热",
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)
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assert result == {"success": True, "result": {"status": "succeeded"}}
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assert opener.timeout == 2.5
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assert opener.request.get_header("X-n7-internal-token") == "a-secure-internal-token"
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assert opener.request.get_header("Authorization") is None
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proxy_handler = next(
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handler for handler in handlers if isinstance(handler, vehicle_mcp_server.ProxyHandler)
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)
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assert proxy_handler.proxies == {}
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