perf(settings): 优化settings配置 (#5515)

* stash

* perf: 优化 动态seting

* perf(settings): 优化settings配置

* perf: 完成终端和安全setting

* perf: 修改翻译

* perf: 去掉其他位置的DYNAMIC

* perf: 还原回来原来的一些代码

* perf: 优化ldap

* perf: 移除dynmic config

* perf: 去掉debug消息

* perf: 优化 refresh 命名

Co-authored-by: ibuler <ibuler@qq.com>

apps/settings/signals_handler.py

@@ -1,28 +1,44 @@
 # -*- coding: utf-8 -*-
 #
 import json
+import threading
 
 from django.dispatch import receiver
 from django.db.models.signals import post_save, pre_save
+from django.utils.functional import LazyObject
 
 from jumpserver.utils import current_request
+from common.decorator import on_transaction_commit
 from common.utils import get_logger, ssh_key_gen
+from common.utils.connection import RedisPubSub
 from common.signals import django_ready
 from .models import Setting
 
 logger = get_logger(__file__)
 
 
-@receiver(post_save, sender=Setting, dispatch_uid="my_unique_identifier")
+def get_settings_pub_sub():
+    return RedisPubSub('settings')
+
+
+class SettingSubPub(LazyObject):
+    def _setup(self):
+        self._wrapped = get_settings_pub_sub()
+
+
+setting_pub_sub = SettingSubPub()
+
+
+@receiver(post_save, sender=Setting)
+@on_transaction_commit
 def refresh_settings_on_changed(sender, instance=None, **kwargs):
     if instance:
-        instance.refresh_setting()
+        setting_pub_sub.publish(instance.name)
 
 
 @receiver(django_ready)
 def on_django_ready_add_db_config(sender, **kwargs):
-    from django.conf import settings
-    settings.DYNAMIC.db_setting = Setting
+    Setting.refresh_all_settings()
 
 
 @receiver(django_ready)
@@ -41,9 +57,27 @@ def auto_generate_terminal_host_key(sender, **kwargs):
 def on_create_set_created_by(sender, instance=None, **kwargs):
     if getattr(instance, '_ignore_auto_created_by', False) is True:
         return
-    if hasattr(instance, 'created_by') and not instance.created_by:
-        if current_request and current_request.user.is_authenticated:
-            user_name = current_request.user.name
-            if isinstance(user_name, str):
-                user_name = user_name[:30]
-            instance.created_by = user_name
+    if not hasattr(instance, 'created_by') or instance.created_by:
+        return
+    if current_request and current_request.user.is_authenticated:
+        user_name = current_request.user.name
+        if isinstance(user_name, str):
+            user_name = user_name[:30]
+        instance.created_by = user_name
+
+
+@receiver(django_ready)
+def subscribe_settings_change(sender, **kwargs):
+    logger.debug("Start subscribe setting change")
+
+    def keep_subscribe():
+        sub = setting_pub_sub.subscribe()
+        for msg in sub.listen():
+            if msg["type"] != "message":
+                continue
+            item = msg['data'].decode()
+            logger.debug("Found setting change: {}".format(str(item)))
+            Setting.refresh_item(item)
+    t = threading.Thread(target=keep_subscribe)
+    t.daemon = True
+    t.start()