Files
nanobot/nanobot/webui/settings_routes.py
T

374 lines
16 KiB
Python

"""HTTP route adapter for WebUI Settings APIs.
Keep WebUI Settings route handlers here, not in ``channels/websocket.py``.
The websocket channel owns transport concerns; this module owns WebUI Settings
request mapping and response shaping.
"""
from __future__ import annotations
import asyncio
import json
from collections.abc import Callable
from typing import Any
from websockets.http11 import Request as WsRequest
from websockets.http11 import Response
from nanobot.agent.tools.mcp import request_mcp_reload
from nanobot.bus.queue import MessageBus
from nanobot.webui.cli_apps_api import cli_apps_action, cli_apps_payload
from nanobot.webui.http_utils import query_first as _query_first
from nanobot.webui.mcp_presets_api import mcp_presets_settings_action
from nanobot.webui.settings_api import (
WebUISettingsError,
create_model_configuration,
decorate_settings_payload,
login_oauth_provider,
logout_oauth_provider,
provider_models_payload,
settings_payload,
settings_usage_payload,
update_agent_settings,
update_image_generation_settings,
update_model_configuration,
update_network_safety_settings,
update_provider_settings,
update_transcription_settings,
update_web_search_settings,
)
from nanobot.webui.version_check import check_for_update
QueryParams = dict[str, list[str]]
_MCP_VALUES_HEADER = "X-Nanobot-MCP-Values"
_MCP_VALUES_HEADER_MAX_BYTES = 64 * 1024
_MCP_PRESET_ACTIONS_BY_PATH = {
"/api/settings/mcp-presets/enable": "enable",
"/api/settings/mcp-presets/remove": "remove",
"/api/settings/mcp-presets/test": "test",
"/api/settings/mcp-presets/custom": "custom",
"/api/settings/mcp-presets/import": "import",
"/api/settings/mcp-presets/import-cursor": "import-cursor",
"/api/settings/mcp-presets/tools": "tools",
}
class WebUISettingsRouter:
"""Route WebUI Settings HTTP requests behind a transport-neutral boundary."""
def __init__(
self,
*,
bus: MessageBus,
logger: Any,
check_api_token: Callable[[WsRequest], bool],
parse_query: Callable[[str], QueryParams],
json_response: Callable[[dict[str, Any]], Response],
error_response: Callable[[int, str | None], Response],
runtime_surface: str,
runtime_capabilities: dict[str, Any],
) -> None:
self.bus = bus
self.logger = logger
self._check_api_token = check_api_token
self._parse_query = parse_query
self._json_response = json_response
self._error_response = error_response
self._runtime_surface = runtime_surface
self._runtime_capabilities = runtime_capabilities
self._restart_sections: set[str] = set()
async def dispatch(self, request: WsRequest, path: str) -> Response | None:
if path == "/api/settings":
return self._handle_settings(request)
if path == "/api/settings/usage":
return self._handle_settings_usage(request)
if path == "/api/settings/update":
return self._handle_settings_update(request)
if path == "/api/settings/model-configurations/create":
return self._handle_settings_model_configuration_create(request)
if path == "/api/settings/model-configurations/update":
return self._handle_settings_model_configuration_update(request)
if path == "/api/settings/provider/update":
return self._handle_settings_provider_update(request)
if path == "/api/settings/provider-models":
return await self._handle_settings_provider_models(request)
if path == "/api/settings/provider/oauth-login":
return await self._handle_settings_provider_oauth(request, "login")
if path == "/api/settings/provider/oauth-logout":
return await self._handle_settings_provider_oauth(request, "logout")
if path == "/api/settings/web-search/update":
return self._handle_settings_web_search_update(request)
if path == "/api/settings/image-generation/update":
return self._handle_settings_image_generation_update(request)
if path == "/api/settings/transcription/update":
return self._handle_settings_transcription_update(request)
if path == "/api/settings/network-safety/update":
return self._handle_settings_network_safety_update(request)
if path == "/api/settings/cli-apps":
return await self._handle_settings_cli_apps(request)
if path == "/api/settings/cli-apps/install":
return await self._handle_settings_cli_apps_action(request, "install")
if path == "/api/settings/cli-apps/update":
return await self._handle_settings_cli_apps_action(request, "update")
if path == "/api/settings/cli-apps/uninstall":
return await self._handle_settings_cli_apps_action(request, "uninstall")
if path == "/api/settings/cli-apps/test":
return await self._handle_settings_cli_apps_action(request, "test")
if path == "/api/settings/mcp-presets":
return await self._handle_settings_mcp_presets(request)
if path == "/api/settings/version-check":
return await self._handle_settings_version_check(request)
mcp_action = _MCP_PRESET_ACTIONS_BY_PATH.get(path)
if mcp_action is not None:
return await self._handle_settings_mcp_presets(request, mcp_action)
return None
def _query(self, request: WsRequest) -> QueryParams:
return self._parse_query(request.path)
def _authorized(self, request: WsRequest) -> bool:
return self._check_api_token(request)
def _unauthorized(self) -> Response:
return self._error_response(401, "Unauthorized")
def _with_restart_state(
self,
payload: dict[str, Any],
*,
section: str | None = None,
) -> dict[str, Any]:
"""Keep restart-required state alive for this gateway process."""
if section and payload.get("requires_restart"):
self._restart_sections.add(section)
sections = sorted(self._restart_sections)
payload = dict(payload)
if sections:
payload["requires_restart"] = True
return decorate_settings_payload(
payload,
surface=self._runtime_surface,
runtime_capability_overrides=self._runtime_capabilities,
restart_required_sections=sections,
)
def _parse_mcp_settings_query(self, request: WsRequest) -> QueryParams:
query = self._query(request)
raw = request.headers.get(_MCP_VALUES_HEADER)
if not raw:
return query
if len(raw.encode("utf-8")) > _MCP_VALUES_HEADER_MAX_BYTES:
raise WebUISettingsError("MCP settings payload is too large")
try:
payload = json.loads(raw)
except json.JSONDecodeError as exc:
raise WebUISettingsError("invalid MCP settings payload") from exc
if not isinstance(payload, dict):
raise WebUISettingsError("MCP settings payload must be a JSON object")
merged = {key: list(values) for key, values in query.items()}
for key, value in payload.items():
if not isinstance(key, str) or not key:
raise WebUISettingsError("MCP settings payload contains an invalid key")
if value is None:
continue
if isinstance(value, str):
text = value.strip()
else:
text = json.dumps(value, ensure_ascii=False, separators=(",", ":"))
if text:
merged[key] = [text]
return merged
def _handle_settings(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
return self._json_response(
self._with_restart_state(
settings_payload(
surface=self._runtime_surface,
runtime_capability_overrides=self._runtime_capabilities,
)
)
)
def _handle_settings_usage(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
return self._json_response(settings_usage_payload())
def _handle_settings_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_agent_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload, section="runtime"))
def _handle_settings_model_configuration_create(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = create_model_configuration(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload))
def _handle_settings_model_configuration_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_model_configuration(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload))
def _handle_settings_provider_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_provider_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload, section="image"))
async def _handle_settings_provider_models(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = await asyncio.to_thread(provider_models_payload, self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
except Exception:
self.logger.exception("failed to load provider model list")
return self._error_response(500, "failed to load provider model list")
return self._json_response(payload)
async def _handle_settings_provider_oauth(
self,
request: WsRequest,
action: str,
) -> Response:
if not self._authorized(request):
return self._unauthorized()
query = self._query(request)
try:
if action == "login":
payload = await asyncio.to_thread(login_oauth_provider, query)
else:
payload = await asyncio.to_thread(logout_oauth_provider, query)
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload))
def _handle_settings_web_search_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_web_search_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload, section="browser"))
def _handle_settings_image_generation_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_image_generation_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload, section="image"))
def _handle_settings_transcription_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_transcription_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload))
def _handle_settings_network_safety_update(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = update_network_safety_settings(self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
return self._json_response(self._with_restart_state(payload, section="runtime"))
async def _handle_settings_cli_apps(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
installed_only = (_query_first(self._query(request), "installed_only") or "").lower() in {
"1",
"true",
"yes",
}
try:
if installed_only:
payload = await asyncio.to_thread(cli_apps_payload, installed_only=True)
else:
payload = await asyncio.to_thread(cli_apps_payload)
except Exception:
self.logger.exception("failed to load CLI Apps payload")
return self._error_response(500, "failed to load CLI Apps")
return self._json_response(payload)
async def _handle_settings_cli_apps_action(
self,
request: WsRequest,
action: str,
) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = await asyncio.to_thread(cli_apps_action, action, self._query(request))
except WebUISettingsError as e:
return self._error_response(e.status, e.message)
except Exception as e:
status = getattr(e, "status", 500)
message = getattr(e, "message", str(e))
if status >= 500:
self.logger.exception("CLI Apps action '{}' failed", action)
return self._error_response(status, message)
return self._json_response(payload)
async def _handle_settings_mcp_presets(
self,
request: WsRequest,
action: str | None = None,
) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
payload = await mcp_presets_settings_action(
action,
self._parse_mcp_settings_query(request),
reload_mcp=lambda: request_mcp_reload(self.bus),
)
except Exception as e:
status = getattr(e, "status", 500)
message = getattr(e, "message", str(e))
if status >= 500:
self.logger.exception("MCP preset action '{}' failed", action or "list")
return self._error_response(status, message)
if action is None:
return self._json_response(payload)
return self._json_response(self._with_restart_state(payload, section="runtime"))
async def _handle_settings_version_check(self, request: WsRequest) -> Response:
if not self._authorized(request):
return self._unauthorized()
try:
update_info = await asyncio.to_thread(check_for_update)
except Exception:
self.logger.exception("version check failed")
return self._error_response(500, "version check failed")
return self._json_response({
"updateAvailable": update_info,
})