diff options
Diffstat (limited to 'backend/decky_loader/plugin/plugin.py')
| -rw-r--r-- | backend/decky_loader/plugin/plugin.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/backend/decky_loader/plugin/plugin.py b/backend/decky_loader/plugin/plugin.py new file mode 100644 index 00000000..6c338106 --- /dev/null +++ b/backend/decky_loader/plugin/plugin.py @@ -0,0 +1,84 @@ +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 .method_call_request import MethodCallRequest +from ..localplatform.localsocket import LocalSocket + +from typing import Any, Callable, Coroutine, Dict + +class PluginWrapper: + def __init__(self, file: str, plugin_directory: str, plugin_path: str) -> None: + self.file = file + self.plugin_path = plugin_path + self.plugin_directory = plugin_directory + + self.version = None + + 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"] + + self.name = json["name"] + self.author = json["author"] + self.flags = json["flags"] + + 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) + #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_message_callback: Callable[[Dict[Any, Any]], Coroutine[Any, Any, Any]] + + 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["id"] == "0": + create_task(self.emitted_message_callback(res["payload"])) + else: + self._method_call_requests.pop(res["id"]).set_result(res) + except: + pass + + def set_emitted_message_callback(self, callback: Callable[[Dict[Any, Any]], Coroutine[Any, Any, Any]]): + self.emitted_message_callback = callback + + async def execute_method(self, method_name: str, kwargs: Dict[Any, 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({ "method": method_name, "args": kwargs, "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): + self._listener_task.cancel() + async def _(self: PluginWrapper): + await self._socket.write_single_line(dumps({ "stop": True }, ensure_ascii=False)) + await self._socket.close_socket_connection() + create_task(_(self))
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