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session.py
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session.py
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import time
from typing import Dict, Callable
from fastapi import WebSocket, WebSocketDisconnect
from opendevin.logger import opendevin_logger as logger
from .msg_stack import message_stack
DEL_DELT_SEC = 60 * 60 * 5
class Session:
sid: str
websocket: WebSocket | None
last_active_ts: int = 0
is_alive: bool = True
def __init__(self, sid: str, ws: WebSocket | None):
self.sid = sid
self.websocket = ws
self.last_active_ts = int(time.time())
async def loop_recv(self, dispatch: Callable):
try:
if self.websocket is None:
return
while True:
try:
data = await self.websocket.receive_json()
except ValueError:
await self.send_error('Invalid JSON')
continue
message_stack.add_message(self.sid, 'user', data)
action = data.get('action', None)
await dispatch(self.sid, action, data)
except WebSocketDisconnect:
self.is_alive = False
logger.info('WebSocket disconnected, sid: %s', self.sid)
except RuntimeError as e:
# WebSocket is not connected
if 'WebSocket is not connected' in str(e):
self.is_alive = False
logger.exception('Error in loop_recv: %s', e)
async def send(self, data: Dict[str, object]) -> bool:
try:
if self.websocket is None or not self.is_alive:
return False
await self.websocket.send_json(data)
self.last_active_ts = int(time.time())
return True
except WebSocketDisconnect:
self.is_alive = False
return False
async def send_error(self, message: str) -> bool:
"""Sends an error message to the client."""
return await self.send({'error': True, 'message': message})
async def send_message(self, message: str) -> bool:
"""Sends a message to the client."""
return await self.send({'message': message})
def update_connection(self, ws: WebSocket):
self.websocket = ws
self.is_alive = True
self.last_active_ts = int(time.time())
def load_from_data(self, data: Dict) -> bool:
self.last_active_ts = data.get('last_active_ts', 0)
if self.last_active_ts < int(time.time()) - DEL_DELT_SEC:
return False
self.is_alive = data.get('is_alive', False)
return True