mirror of
https://github.com/stardrophere/InsightRadar.git
synced 2026-06-06 00:39:21 +08:00
47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
from functools import lru_cache
|
|
import logging
|
|
import os
|
|
from typing import Optional, TYPE_CHECKING
|
|
import redis
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
REDIS_URL = os.getenv("REDIS_URL", "").strip()
|
|
REDIS_CONNECT_TIMEOUT_SECONDS = float(os.getenv("REDIS_CONNECT_TIMEOUT_SECONDS", "2"))
|
|
REDIS_SOCKET_TIMEOUT_SECONDS = float(os.getenv("REDIS_SOCKET_TIMEOUT_SECONDS", "2"))
|
|
|
|
_redis_client: Optional["redis.Redis"] = None
|
|
_initialized = False
|
|
|
|
@lru_cache
|
|
def get_redis_client() -> Optional["redis.Redis"]:
|
|
"""Return a singleton Redis client, or None when Redis is unavailable."""
|
|
global _redis_client, _initialized
|
|
|
|
if _initialized:
|
|
return _redis_client
|
|
|
|
_initialized = True
|
|
|
|
if not REDIS_URL:
|
|
logger.info("REDIS_URL 未配置，验证码将回退到内存存储")
|
|
_redis_client = None
|
|
return _redis_client
|
|
|
|
try:
|
|
_redis_client = redis.Redis.from_url(
|
|
REDIS_URL,
|
|
decode_responses=True,
|
|
socket_connect_timeout=REDIS_CONNECT_TIMEOUT_SECONDS,
|
|
socket_timeout=REDIS_SOCKET_TIMEOUT_SECONDS,
|
|
health_check_interval=30,
|
|
)
|
|
_redis_client.ping()
|
|
logger.info("Redis 连接成功，验证码将优先使用 Redis")
|
|
except Exception as exc: # pragma: no cover
|
|
logger.warning("Redis 连接失败，将回退到数据库存储。error=%s", exc)
|
|
_redis_client = None
|
|
|
|
return _redis_client
|