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from asyncio import Task, create_task
from json import dumps, load, loads
from logging import getLogger
from os import path
from multiprocessing import Process
from .sandboxed_plugin import SandboxedPlugin
from .messages import MethodCallRequest, SocketMessageType
from ..enums import PluginLoadType
from ..localplatform.localsocket import LocalSocket
from typing import Any, Callable, Coroutine, Dict, List
EmittedEventCallbackType = Callable[[str, Any], Coroutine[Any, Any, Any]]
class PluginWrapper:
def __init__(self, file: str, plugin_directory: str, plugin_path: str, emit_callback: EmittedEventCallbackType) -> None:
self.file = file
self.plugin_path = plugin_path
self.plugin_directory = plugin_directory
self.version = None
self.load_type = PluginLoadType.LEGACY_EVAL_IIFE.value
json = load(open(path.join(plugin_path, plugin_directory, "plugin.json"), "r", encoding="utf-8"))
if path.isfile(path.join(plugin_path, plugin_directory, "package.json")):
package_json = load(open(path.join(plugin_path, plugin_directory, "package.json"), "r", encoding="utf-8"))
self.version = package_json["version"]
if ("type" in package_json and package_json["type"] == "module"):
self.load_type = PluginLoadType.ESMODULE_V1.value
self.name = json["name"]
self.author = json["author"]
self.flags = json["flags"]
self.api_version = json["api_version"] if "api_version" in json else 0
self.passive = not path.isfile(self.file)
self.log = getLogger("plugin")
self.sandboxed_plugin = SandboxedPlugin(self.name, self.passive, self.flags, self.file, self.plugin_directory, self.plugin_path, self.version, self.author, self.api_version)
# TODO: Maybe make LocalSocket not require on_new_message to make this cleaner
self._socket = LocalSocket(self.sandboxed_plugin.on_new_message)
self._listener_task: Task[Any]
self._method_call_requests: Dict[str, MethodCallRequest] = {}
self.emitted_event_callback: EmittedEventCallbackType = emit_callback
self.legacy_method_warning = False
def __str__(self) -> str:
return self.name
async def _response_listener(self):
while True:
try:
line = await self._socket.read_single_line()
if line != None:
res = loads(line)
if res["type"] == SocketMessageType.EVENT.value:
create_task(self.emitted_event_callback(res["event"], res["args"]))
elif res["type"] == SocketMessageType.RESPONSE.value:
self._method_call_requests.pop(res["id"]).set_result(res)
except:
pass
async def execute_legacy_method(self, method_name: str, kwargs: Dict[Any, Any]):
if not self.legacy_method_warning:
self.legacy_method_warning = True
self.log.warn(f"Plugin {self.name} is using legacy method calls. This will be removed in a future release.")
if self.passive:
raise RuntimeError("This plugin is passive (aka does not implement main.py)")
request = MethodCallRequest()
await self._socket.get_socket_connection()
await self._socket.write_single_line(dumps({ "type": SocketMessageType.CALL, "method": method_name, "args": kwargs, "id": request.id, "legacy": True }, ensure_ascii=False))
self._method_call_requests[request.id] = request
return await request.wait_for_result()
async def execute_method(self, method_name: str, args: List[Any]):
if self.passive:
raise RuntimeError("This plugin is passive (aka does not implement main.py)")
request = MethodCallRequest()
await self._socket.get_socket_connection()
await self._socket.write_single_line(dumps({ "type": SocketMessageType.CALL, "method": method_name, "args": args, "id": request.id }, ensure_ascii=False))
self._method_call_requests[request.id] = request
return await request.wait_for_result()
def start(self):
if self.passive:
return self
Process(target=self.sandboxed_plugin.initialize, args=[self._socket]).start()
self._listener_task = create_task(self._response_listener())
return self
def stop(self, uninstall: bool = False):
self._listener_task.cancel()
async def _(self: PluginWrapper):
await self._socket.write_single_line(dumps({ "stop": True, "uninstall": uninstall }, ensure_ascii=False))
await self._socket.close_socket_connection()
create_task(_(self))
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