Files
AstrBot/astrbot/dashboard/services/log_service.py
2026-06-27 09:45:11 +08:00

93 lines
3.1 KiB
Python

from __future__ import annotations
import asyncio
import json
import time
from collections.abc import AsyncGenerator
from astrbot.core import LogBroker, logger
from astrbot.core.config.astrbot_config import AstrBotConfig
class LogServiceError(Exception):
pass
class LogService:
def __init__(self, log_broker: LogBroker, config: AstrBotConfig) -> None:
self.log_broker = log_broker
self.config = config
@staticmethod
def format_log_sse(log: dict, ts: float) -> str:
payload = {
"type": "log",
**log,
}
return f"id: {ts}\ndata: {json.dumps(payload, ensure_ascii=False)}\n\n"
async def replay_cached_logs(self, last_event_id: str) -> AsyncGenerator[str]:
try:
last_ts = float(last_event_id)
cached_logs = list(self.log_broker.log_cache)
for log_item in cached_logs:
log_ts = float(log_item.get("time", 0))
if log_ts > last_ts:
yield self.format_log_sse(log_item, log_ts)
except ValueError:
pass
except Exception as exc:
logger.error(f"Log SSE 补发历史错误: {exc}")
async def stream_log_events(self, last_event_id: str | None) -> AsyncGenerator[str]:
queue = None
try:
if last_event_id:
async for event in self.replay_cached_logs(last_event_id):
yield event
queue = self.log_broker.register()
while True:
message = await queue.get()
current_ts = message.get("time", time.time())
yield self.format_log_sse(message, current_ts)
except asyncio.CancelledError:
pass
except Exception as exc:
logger.error(f"Log SSE 连接错误: {exc}")
finally:
if queue:
self.log_broker.unregister(queue)
def get_log_history(self) -> dict:
try:
return {"logs": list(self.log_broker.log_cache)}
except Exception as exc:
logger.error(f"获取日志历史失败: {exc}")
raise LogServiceError(f"获取日志历史失败: {exc}") from exc
def get_trace_settings(self) -> dict:
try:
return {"trace_enable": self.config.get("trace_enable", True)}
except Exception as exc:
logger.error(f"获取 Trace 设置失败: {exc}")
raise LogServiceError(f"获取 Trace 设置失败: {exc}") from exc
def update_trace_settings(self, payload: dict | None) -> str:
try:
if payload is None:
raise LogServiceError("请求数据为空")
trace_enable = payload.get("trace_enable")
if trace_enable is not None:
self.config["trace_enable"] = bool(trace_enable)
self.config.save_config()
return "Trace 设置已更新"
except LogServiceError:
raise
except Exception as exc:
logger.error(f"更新 Trace 设置失败: {exc}")
raise LogServiceError(f"更新 Trace 设置失败: {exc}") from exc