fix 优化远程交互内存占用

app/chain/__init__.py

@@ -1,9 +1,11 @@
+import pickle
 import traceback
 from pathlib import Path
 from typing import Optional, Any, Tuple, List, Set, Union, Dict
 
 from ruamel.yaml import CommentedMap
 
+from app.core.config import settings
 from app.core.context import Context
 from app.core.context import MediaInfo, TorrentInfo
 from app.core.event import EventManager
@@ -28,6 +30,23 @@ class ChainBase(AbstractSingleton, metaclass=Singleton):
         self.modulemanager = ModuleManager()
         self.eventmanager = EventManager()
 
+    @staticmethod
+    def __load_cache(filename: str) -> Any:
+        """
+        从本地加载缓存
+        """
+        cache_path = settings.TEMP_PATH / filename
+        if cache_path.exists():
+            return pickle.load(cache_path.open('rb'))
+        return None
+
+    @staticmethod
+    def __save_cache(cache: Any, filename: str) -> None:
+        """
+        保存缓存到本地
+        """
+        pickle.dump(cache, (settings.TEMP_PATH / filename).open('wb'))
+
     def run_module(self, method: str, *args, **kwargs) -> Any:
         """
         运行包含该方法的所有模块，然后返回结果

app/chain/message.py

@@ -16,7 +16,7 @@ class MessageChain(ChainBase):
     外来消息处理链
     """
     # 缓存的用户数据 {userid: {type: str, items: list}}
-    _user_cache: Dict[str, dict] = {}
+    _cache_file = "__user_messages__"
     # 每页数据量
     _page_size: int = 8
     # 当前页面
@@ -58,6 +58,9 @@ class MessageChain(ChainBase):
         if not text:
             logger.debug(f'未识别到消息内容：：{body}{form}{args}')
             return
+        # 加载缓存
+        user_cache: Dict[str, dict] = self.__load_cache(self._cache_file) or {}
+        # 处理消息
         logger.info(f'收到用户消息内容，用户：{userid}，内容：{text}')
         if text.startswith('/'):
             # 执行命令
@@ -72,7 +75,7 @@ class MessageChain(ChainBase):
 
         elif text.isdigit():
             # 缓存
-            cache_data: dict = self._user_cache.get(userid)
+            cache_data: dict = user_cache.get(userid)
             # 选择项目
             if not cache_data \
                     or not cache_data.get('items') \
@@ -125,7 +128,7 @@ class MessageChain(ChainBase):
                 # 搜索结果排序
                 contexts = self.torrenthelper.sort_torrents(contexts)
                 # 更新缓存
-                self._user_cache[userid] = {
+                user_cache[userid] = {
                     "type": "Torrent",
                     "items": contexts
                 }
@@ -201,7 +204,7 @@ class MessageChain(ChainBase):
 
         elif text.lower() == "p":
             # 上一页
-            cache_data: dict = self._user_cache.get(userid)
+            cache_data: dict = user_cache.get(userid)
             if not cache_data:
                 # 没有缓存
                 self.post_message(Notification(
@@ -240,7 +243,7 @@ class MessageChain(ChainBase):
 
         elif text.lower() == "n":
             # 下一页
-            cache_data: dict = self._user_cache.get(userid)
+            cache_data: dict = user_cache.get(userid)
             if not cache_data:
                 # 没有缓存
                 self.post_message(Notification(
@@ -296,7 +299,7 @@ class MessageChain(ChainBase):
             logger.info(f"搜索到 {len(medias)} 条相关媒体信息")
             # 记录当前状态
             self._current_meta = meta
-            self._user_cache[userid] = {
+            user_cache[userid] = {
                 'type': action,
                 'items': medias
             }
@@ -307,6 +310,8 @@ class MessageChain(ChainBase):
                                        title=meta.name,
                                        items=medias[:self._page_size],
                                        userid=userid, total=len(medias))
+        # 保存缓存
+        self.__save_cache(user_cache, self._cache_file)
 
     def __post_medias_message(self, channel: MessageChannel,
                               title: str, items: list, userid: str, total: int):

app/chain/subscribe.py

@@ -1,8 +1,6 @@
 import json
-import pickle
 import re
 from datetime import datetime
-from pathlib import Path
 from typing import Dict, List, Optional, Union, Tuple
 
 from app.chain import ChainBase
@@ -27,7 +25,7 @@ class SubscribeChain(ChainBase):
     订阅管理处理链
     """
 
-    __cache_path: Path = None
+    _cache_file = "__torrents_cache__"
 
     def __init__(self):
         super().__init__()
@@ -38,9 +36,6 @@ class SubscribeChain(ChainBase):
         self.message = MessageHelper()
         self.systemconfig = SystemConfigOper()
 
-        # 缓存路径
-        self.__cache_path = settings.TEMP_PATH / "__torrents_cache__"
-
     def add(self, title: str, year: str,
             mtype: MediaType = None,
             tmdbid: int = None,
@@ -302,7 +297,7 @@ class SubscribeChain(ChainBase):
         刷新站点最新资源
         """
         # 读取缓存
-        torrents_cache: Dict[str, List[Context]] = self.__load_cache()
+        torrents_cache: Dict[str, List[Context]] = self.__load_cache(self._cache_file) or {}
 
         # 所有站点索引
         indexers = self.siteshelper.get_indexers()
@@ -368,21 +363,7 @@ class SubscribeChain(ChainBase):
         # 从缓存中匹配订阅
         self.__match(torrents_cache)
         # 保存缓存到本地
-        self.__save_cache(torrents_cache)
+        self.__save_cache(torrents_cache, self._cache_file)
-
-    def __load_cache(self) -> Dict[str, List[Context]]:
-        """
-        从本地加载缓存
-        """
-        if self.__cache_path.exists():
-            return pickle.load(self.__cache_path.open('rb')) or {}
-        return {}
-
-    def __save_cache(self, cache: Dict[str, List[Context]]):
-        """
-        保存缓存到本地
-        """
-        pickle.dump(cache, self.__cache_path.open('wb'))
 
     def __match(self, torrents_cache: Dict[str, List[Context]]):
         """