mirror of
https://github.com/eigent-ai/eigent.git
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346 lines
16 KiB
Python
346 lines
16 KiB
Python
import os
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import subprocess
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import time
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import asyncio
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import json
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from typing import Any, Dict, List, Optional
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from loguru import logger
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import websockets
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import websockets.exceptions
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from camel.models import BaseModelBackend
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from camel.toolkits.hybrid_browser_toolkit.hybrid_browser_toolkit_ts import (
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HybridBrowserToolkit as BaseHybridBrowserToolkit,
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)
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from camel.toolkits.hybrid_browser_toolkit.ws_wrapper import WebSocketBrowserWrapper as BaseWebSocketBrowserWrapper
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from app.component.command import bun, uv
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from app.component.environment import env
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from app.service.task import Agents
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from app.utils.listen.toolkit_listen import auto_listen_toolkit
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from app.utils.toolkit.abstract_toolkit import AbstractToolkit
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class WebSocketBrowserWrapper(BaseWebSocketBrowserWrapper):
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def __init__(self, config: Optional[Dict[str, Any]] = None):
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"""Initialize wrapper."""
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super().__init__(config)
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logger.info(f"WebSocketBrowserWrapper using ts_dir: {self.ts_dir}")
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async def _receive_loop(self):
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"""Background task to receive messages from WebSocket with enhanced logging."""
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logger.debug("WebSocket receive loop started")
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disconnect_reason = None
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try:
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while self.websocket:
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try:
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response_data = await self.websocket.recv()
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response = json.loads(response_data)
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message_id = response.get("id")
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if message_id and message_id in self._pending_responses:
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# Set the result for the waiting coroutine
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future = self._pending_responses.pop(message_id)
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if not future.done():
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future.set_result(response)
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logger.debug(f"Processed response for message {message_id}")
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else:
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# Log unexpected messages
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logger.warning(f"Received unexpected message: {response}")
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except asyncio.CancelledError:
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disconnect_reason = "Receive loop cancelled"
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logger.info(f"WebSocket disconnect: {disconnect_reason}")
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break
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except websockets.exceptions.ConnectionClosed as e:
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disconnect_reason = f"WebSocket closed: code={e.code}, reason={e.reason}"
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logger.warning(f"WebSocket disconnect: {disconnect_reason}")
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break
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except websockets.exceptions.WebSocketException as e:
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disconnect_reason = f"WebSocket error: {type(e).__name__}: {e}"
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logger.error(f"WebSocket disconnect: {disconnect_reason}")
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break
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except json.JSONDecodeError as e:
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logger.error(f"Failed to decode WebSocket message: {e}")
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continue # Try to continue on JSON errors
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except Exception as e:
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disconnect_reason = f"Unexpected error: {type(e).__name__}: {e}"
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logger.error(f"WebSocket disconnect: {disconnect_reason}", exc_info=True)
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# Notify all pending futures of the error
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for future in self._pending_responses.values():
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if not future.done():
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future.set_exception(e)
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self._pending_responses.clear()
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break
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finally:
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logger.info(f"WebSocket receive loop terminated. Reason: {disconnect_reason or 'Normal shutdown'}")
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# Mark the websocket as None to indicate disconnection
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self.websocket = None
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async def start(self):
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# Simply use the parent implementation which uses system npm/node
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logger.info("Starting WebSocket server using parent implementation (system npm/node)")
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await super().start()
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async def _send_command(self, command: str, params: Dict[str, Any]) -> Dict[str, Any]:
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"""Send a command to the WebSocket server with enhanced error handling."""
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try:
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# First ensure we have a valid connection
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if self.websocket is None:
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raise RuntimeError("WebSocket connection not established")
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# Check connection state before sending
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if hasattr(self.websocket, "state"):
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import websockets.protocol
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if self.websocket.state != websockets.protocol.State.OPEN:
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raise RuntimeError(f"WebSocket is in {self.websocket.state} state, not OPEN")
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logger.debug(f"Sending command '{command}' with params: {params}")
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# Call parent's _send_command
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result = await super()._send_command(command, params)
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logger.debug(f"Command '{command}' completed successfully")
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return result
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except RuntimeError as e:
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logger.error(f"Failed to send command '{command}': {e}")
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# Check if it's a connection issue
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if "WebSocket" in str(e) or "connection" in str(e).lower():
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# Mark connection as dead
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self.websocket = None
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raise
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except Exception as e:
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logger.error(f"Unexpected error sending command '{command}': {type(e).__name__}: {e}")
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raise
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# WebSocket connection pool
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class WebSocketConnectionPool:
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"""Manage WebSocket browser connections with session-based pooling."""
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def __init__(self):
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self._connections: Dict[str, WebSocketBrowserWrapper] = {}
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self._lock = asyncio.Lock()
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async def get_connection(self, session_id: str, config: Dict[str, Any]) -> WebSocketBrowserWrapper:
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"""Get or create a connection for the given session ID."""
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async with self._lock:
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# Check if we have an existing connection for this session
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if session_id in self._connections:
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wrapper = self._connections[session_id]
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# Comprehensive connection health check
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is_healthy = False
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if wrapper.websocket:
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try:
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# Check WebSocket state based on available attributes
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if hasattr(wrapper.websocket, "state"):
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import websockets.protocol
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is_healthy = wrapper.websocket.state == websockets.protocol.State.OPEN
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if not is_healthy:
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logger.debug(f"Session {session_id} WebSocket state: {wrapper.websocket.state}")
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elif hasattr(wrapper.websocket, "open"):
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is_healthy = wrapper.websocket.open
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else:
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# Try ping as last resort
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try:
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await asyncio.wait_for(wrapper.websocket.ping(), timeout=1.0)
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is_healthy = True
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except:
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is_healthy = False
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except Exception as e:
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logger.debug(f"Health check failed for session {session_id}: {e}")
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is_healthy = False
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if is_healthy:
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logger.debug(f"Reusing healthy WebSocket connection for session {session_id}")
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return wrapper
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else:
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# Connection is unhealthy, clean it up
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logger.info(f"Removing unhealthy WebSocket connection for session {session_id}")
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try:
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await wrapper.stop()
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except Exception as e:
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logger.debug(f"Error stopping unhealthy wrapper: {e}")
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del self._connections[session_id]
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# Create a new connection
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logger.info(f"Creating new WebSocket connection for session {session_id}")
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wrapper = WebSocketBrowserWrapper(config)
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await wrapper.start()
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self._connections[session_id] = wrapper
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logger.info(f"Successfully created WebSocket connection for session {session_id}")
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return wrapper
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async def close_connection(self, session_id: str):
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"""Close and remove a connection for the given session ID."""
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async with self._lock:
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if session_id in self._connections:
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wrapper = self._connections[session_id]
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try:
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await wrapper.stop()
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except Exception as e:
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logger.error(f"Error closing WebSocket connection for session {session_id}: {e}")
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del self._connections[session_id]
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logger.info(f"Closed WebSocket connection for session {session_id}")
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async def _close_connection_unlocked(self, session_id: str):
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"""Close connection without acquiring lock (for internal use)."""
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if session_id in self._connections:
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wrapper = self._connections[session_id]
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try:
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await wrapper.stop()
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except Exception as e:
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logger.error(f"Error closing WebSocket connection for session {session_id}: {e}")
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del self._connections[session_id]
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logger.info(f"Closed WebSocket connection for session {session_id}")
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async def close_all(self):
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"""Close all connections in the pool."""
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async with self._lock:
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for session_id in list(self._connections.keys()):
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await self._close_connection_unlocked(session_id)
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logger.info("Closed all WebSocket connections")
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# Global connection pool instance
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websocket_connection_pool = WebSocketConnectionPool()
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@auto_listen_toolkit(BaseHybridBrowserToolkit)
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class HybridBrowserToolkit(BaseHybridBrowserToolkit, AbstractToolkit):
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agent_name: str = Agents.search_agent
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def __init__(
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self,
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api_task_id: str,
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*,
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headless: bool = False,
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user_data_dir: str | None = None,
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stealth: bool = True,
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web_agent_model: BaseModelBackend | None = None,
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cache_dir: Optional[str] = None,
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enabled_tools: List[str] | None = None,
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browser_log_to_file: bool = False,
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log_dir: Optional[str] = None,
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session_id: str | None = None,
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default_start_url: Optional[str] = None,
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default_timeout: int | None = None,
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short_timeout: int | None = None,
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navigation_timeout: int | None = None,
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network_idle_timeout: int | None = None,
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screenshot_timeout: int | None = None,
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page_stability_timeout: int | None = None,
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dom_content_loaded_timeout: int | None = None,
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viewport_limit: bool = False,
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connect_over_cdp: bool = True,
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cdp_url: str | None = "http://localhost:9222",
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cdp_keep_current_page: bool = False,
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full_visual_mode: bool = False,
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) -> None:
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logger.info(f"[HybridBrowserToolkit] Initializing with api_task_id: {api_task_id}")
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self.api_task_id = api_task_id
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logger.debug(f"[HybridBrowserToolkit] api_task_id set to: {self.api_task_id}")
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logger.debug(f"[HybridBrowserToolkit] Calling super().__init__ with session_id: {session_id}")
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super().__init__(
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headless=headless,
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user_data_dir=user_data_dir,
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stealth=stealth,
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web_agent_model=web_agent_model,
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cache_dir=cache_dir,
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enabled_tools=enabled_tools,
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browser_log_to_file=browser_log_to_file,
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session_id=session_id,
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default_start_url=default_start_url,
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default_timeout=default_timeout,
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short_timeout=short_timeout,
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navigation_timeout=navigation_timeout,
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network_idle_timeout=network_idle_timeout,
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screenshot_timeout=screenshot_timeout,
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page_stability_timeout=page_stability_timeout,
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dom_content_loaded_timeout=dom_content_loaded_timeout,
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viewport_limit=viewport_limit,
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connect_over_cdp=connect_over_cdp,
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cdp_url=cdp_url,
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cdp_keep_current_page=cdp_keep_current_page,
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full_visual_mode=full_visual_mode,
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)
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logger.info(f"[HybridBrowserToolkit] Initialization complete for api_task_id: {self.api_task_id}")
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async def _ensure_ws_wrapper(self):
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"""Ensure WebSocket wrapper is initialized using connection pool."""
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logger.debug(f"[HybridBrowserToolkit] _ensure_ws_wrapper called for api_task_id: {getattr(self, 'api_task_id', 'NOT SET')}")
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global websocket_connection_pool
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# Get session ID from config or use default
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session_id = self._ws_config.get("session_id", "default")
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logger.debug(f"[HybridBrowserToolkit] Using session_id: {session_id}")
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# Get or create connection from pool
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self._ws_wrapper = await websocket_connection_pool.get_connection(session_id, self._ws_config)
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logger.info(f"[HybridBrowserToolkit] WebSocket wrapper initialized for session: {session_id}")
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# Additional health check
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if self._ws_wrapper.websocket is None:
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logger.warning(f"WebSocket connection for session {session_id} is None after pool retrieval, recreating...")
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await websocket_connection_pool.close_connection(session_id)
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self._ws_wrapper = await websocket_connection_pool.get_connection(session_id, self._ws_config)
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def clone_for_new_session(self, new_session_id: str | None = None) -> "HybridBrowserToolkit":
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import uuid
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if new_session_id is None:
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new_session_id = str(uuid.uuid4())[:8]
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return HybridBrowserToolkit(
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self.api_task_id,
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headless=self._headless,
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user_data_dir=self._user_data_dir,
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stealth=self._stealth,
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web_agent_model=self._web_agent_model,
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cache_dir=f"{self._cache_dir.rstrip('/')}/_clone_{new_session_id}/",
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enabled_tools=self.enabled_tools.copy(),
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browser_log_to_file=self._browser_log_to_file,
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log_dir=self.config_loader.get_toolkit_config().log_dir,
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session_id=new_session_id,
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default_start_url=self._default_start_url,
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default_timeout=self._default_timeout,
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short_timeout=self._short_timeout,
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navigation_timeout=self._navigation_timeout,
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network_idle_timeout=self._network_idle_timeout,
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screenshot_timeout=self._screenshot_timeout,
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page_stability_timeout=self._page_stability_timeout,
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dom_content_loaded_timeout=self._dom_content_loaded_timeout,
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viewport_limit=self._viewport_limit,
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connect_over_cdp=self.config_loader.get_browser_config().connect_over_cdp,
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cdp_url=f"http://localhost:{env('browser_port', '9222')}",
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cdp_keep_current_page=self.config_loader.get_browser_config().cdp_keep_current_page,
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full_visual_mode=self._full_visual_mode,
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)
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@classmethod
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def toolkit_name(cls) -> str:
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return "Browser Toolkit"
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async def close(self):
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"""Close the browser toolkit and release WebSocket connection."""
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try:
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# Close browser if needed
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if self._ws_wrapper:
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await super().browser_close()
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except Exception as e:
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logger.error(f"Error closing browser: {e}")
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# Release connection from pool
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session_id = self._ws_config.get("session_id", "default")
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await websocket_connection_pool.close_connection(session_id)
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logger.info(f"Released WebSocket connection for session {session_id}")
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def __del__(self):
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"""Cleanup when object is garbage collected."""
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if hasattr(self, "_ws_wrapper") and self._ws_wrapper:
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session_id = self._ws_config.get("session_id", "default")
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logger.debug(f"HybridBrowserToolkit for session {session_id} is being garbage collected")
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