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- # encoding:utf-8
-
- import importlib
- import json
- import os
- from common.singleton import singleton
- from .event import *
- from .plugin import *
- from common.log import logger
-
-
- @singleton
- class PluginManager:
- def __init__(self):
- self.plugins = {}
- self.listening_plugins = {}
- self.instances = {}
-
- def register(self, name: str, desc: str, version: str, author: str):
- def wrapper(plugincls):
- self.plugins[name] = plugincls
- plugincls.name = name
- plugincls.desc = desc
- plugincls.version = version
- plugincls.author = author
- plugincls.enabled = True
- logger.info("Plugin %s_v%s registered" % (name, version))
- return plugincls
- return wrapper
-
- def save_config(self, pconf):
- with open("plugins/plugins.json", "w", encoding="utf-8") as f:
- json.dump(pconf, f, indent=4, ensure_ascii=False)
-
- def load_config(self):
- logger.info("Loading plugins config...")
- plugins_dir = "plugins"
- for plugin_name in os.listdir(plugins_dir):
- plugin_path = os.path.join(plugins_dir, plugin_name)
- if os.path.isdir(plugin_path):
- # 判断插件是否包含同名.py文件
- main_module_path = os.path.join(plugin_path, plugin_name+".py")
- if os.path.isfile(main_module_path):
- # 导入插件
- import_path = "{}.{}.{}".format(plugins_dir, plugin_name, plugin_name)
- main_module = importlib.import_module(import_path)
-
- modified = False
- if os.path.exists("plugins/plugins.json"):
- with open("plugins/plugins.json", "r", encoding="utf-8") as f:
- pconf = json.load(f)
- else:
- modified = True
- pconf = {"plugins": []}
- for name, plugincls in self.plugins.items():
- if name not in [plugin["name"] for plugin in pconf["plugins"]]:
- modified = True
- logger.info("Plugin %s not found in pconfig, adding to pconfig..." % name)
- pconf["plugins"].append({"name": name, "enabled": True})
- if modified:
- self.save_config(pconf)
- return pconf
-
- def load_plugins(self):
- pconf = self.load_config()
- logger.debug("plugins.json config={}".format(pconf))
- for plugin in pconf["plugins"]:
- name = plugin["name"]
- enabled = plugin["enabled"]
- self.plugins[name].enabled = enabled
-
- for name, plugincls in self.plugins.items():
- if plugincls.enabled:
- if name not in self.instances:
- instance = plugincls()
- self.instances[name] = instance
- for event in instance.handlers:
- if event not in self.listening_plugins:
- self.listening_plugins[event] = []
- self.listening_plugins[event].append(name)
-
- def emit_event(self, e_context: EventContext, *args, **kwargs):
- if e_context.event in self.listening_plugins:
- for name in self.listening_plugins[e_context.event]:
- if e_context.action == EventAction.CONTINUE:
- logger.debug("Plugin %s triggered by event %s" % (name,e_context.event))
- instance = self.instances[name]
- instance.handlers[e_context.event](e_context, *args, **kwargs)
- return e_context
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