Kris
4552bde837
该提交实现了完整的抖音开放平台IM渠道插件，包含： 1. 基础配置与账号管理能力 2. 消息去重、安全策略校验 3. 流式回复、多媒体消息发送 4. Webhook回调处理与事件解析 5. 配对认证与流量限流机制
44 lines
1.0 KiB
Python
44 lines
1.0 KiB
Python
import time
|
|
from collections import OrderedDict
|
|
|
|
|
|
class MessageDeduplicator:
|
|
MAX_SIZE = 10000
|
|
TTL_SECONDS = 300
|
|
|
|
def __init__(self, max_size: int = MAX_SIZE, ttl: int = TTL_SECONDS):
|
|
self._cache: OrderedDict[str, float] = OrderedDict()
|
|
self._max_size = max_size
|
|
self._ttl = ttl
|
|
|
|
def is_duplicate(self, msg_id: str) -> bool:
|
|
if not msg_id:
|
|
return False
|
|
|
|
self._evict_expired()
|
|
|
|
if msg_id in self._cache:
|
|
return True
|
|
|
|
self._cache[msg_id] = time.time()
|
|
self._cache.move_to_end(msg_id)
|
|
|
|
while len(self._cache) > self._max_size:
|
|
self._cache.popitem(last=False)
|
|
|
|
return False
|
|
|
|
def mark_seen(self, msg_id: str) -> None:
|
|
if not msg_id:
|
|
return
|
|
self._cache[msg_id] = time.time()
|
|
|
|
def _evict_expired(self):
|
|
now = time.time()
|
|
expired = [k for k, ts in self._cache.items() if now - ts > self._ttl]
|
|
for k in expired:
|
|
del self._cache[k]
|
|
|
|
def reset(self):
|
|
self._cache.clear()
|