111 lines
3.2 KiB
Python
111 lines
3.2 KiB
Python
"""请求历史记录。
|
|
|
|
为管理后台提供最近请求查询能力，默认仅保留最近 500 条，
|
|
重启后会从磁盘恢复最近一次快照。
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import json
|
|
import os
|
|
import threading
|
|
from collections import deque
|
|
from datetime import datetime, timezone
|
|
from typing import Any
|
|
|
|
from settings import DATA_DIR
|
|
|
|
_MAX_RECORDS = 500
|
|
_FILE_PATH = os.path.join(DATA_DIR, 'request_logs.json')
|
|
|
|
|
|
def _now_iso() -> str:
|
|
return datetime.now(timezone.utc).isoformat().replace('+00:00', 'Z')
|
|
|
|
|
|
def _safe_int(value: Any) -> int:
|
|
try:
|
|
return int(value or 0)
|
|
except (TypeError, ValueError):
|
|
return 0
|
|
|
|
|
|
def _normalize_usage(usage: dict[str, Any] | None) -> dict[str, int]:
|
|
usage = usage or {}
|
|
input_tokens = _safe_int(
|
|
usage.get('prompt_tokens', usage.get('input_tokens', 0))
|
|
)
|
|
output_tokens = _safe_int(
|
|
usage.get('completion_tokens', usage.get('output_tokens', 0))
|
|
)
|
|
total_tokens = _safe_int(usage.get('total_tokens', input_tokens + output_tokens))
|
|
return {
|
|
'input_tokens': input_tokens,
|
|
'output_tokens': output_tokens,
|
|
'total_tokens': total_tokens,
|
|
}
|
|
|
|
|
|
class RequestHistory:
|
|
def __init__(self) -> None:
|
|
self._lock = threading.Lock()
|
|
self._records: deque[dict[str, Any]] = deque(maxlen=_MAX_RECORDS)
|
|
self._load()
|
|
|
|
def record(
|
|
self,
|
|
*,
|
|
route: str,
|
|
client_model: str,
|
|
actual_model: str,
|
|
backend: str,
|
|
upstream_url: str,
|
|
usage: dict[str, Any] | None,
|
|
duration_ms: int,
|
|
started_at: str | None = None,
|
|
status: str = 'ok',
|
|
error_message: str = '',
|
|
) -> None:
|
|
record = {
|
|
'requested_at': started_at or _now_iso(),
|
|
'route': route,
|
|
'requested_model': client_model or '',
|
|
'actual_model': actual_model or '',
|
|
'backend': backend or '',
|
|
'upstream_url': upstream_url or '',
|
|
'duration_ms': max(_safe_int(duration_ms), 0),
|
|
'status': status or 'ok',
|
|
'error_message': error_message or '',
|
|
'usage': _normalize_usage(usage),
|
|
'recorded_at': _now_iso(),
|
|
}
|
|
with self._lock:
|
|
self._records.appendleft(record)
|
|
self._persist_locked()
|
|
|
|
def get_recent(self, limit: int = _MAX_RECORDS) -> list[dict[str, Any]]:
|
|
size = max(1, min(_safe_int(limit), _MAX_RECORDS))
|
|
with self._lock:
|
|
return list(self._records)[:size]
|
|
|
|
def _load(self) -> None:
|
|
if not os.path.exists(_FILE_PATH):
|
|
return
|
|
try:
|
|
with open(_FILE_PATH, 'r', encoding='utf-8') as f:
|
|
data = json.load(f)
|
|
if not isinstance(data, list):
|
|
return
|
|
for item in data[:_MAX_RECORDS]:
|
|
if isinstance(item, dict):
|
|
self._records.append(item)
|
|
except (OSError, json.JSONDecodeError):
|
|
self._records.clear()
|
|
|
|
def _persist_locked(self) -> None:
|
|
os.makedirs(DATA_DIR, exist_ok=True)
|
|
with open(_FILE_PATH, 'w', encoding='utf-8') as f:
|
|
json.dump(list(self._records), f, ensure_ascii=False, indent=2)
|
|
|
|
|
|
request_history = RequestHistory()
|