mirror of
https://github.com/SteamDeckHomebrew/decky-loader.git
synced 2026-06-17 00:37:49 +00:00
Moved backend entirely into the backend folder
This commit is contained in:
WerWolv
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# Change PyInstaller files permissions
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import sys
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from typing import Dict
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from .localplatform import (chmod, chown, service_stop, service_start,
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ON_WINDOWS, get_log_level, get_live_reload,
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get_server_port, get_server_host, get_chown_plugin_path,
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get_privileged_path)
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if hasattr(sys, '_MEIPASS'):
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chmod(sys._MEIPASS, 755) # type: ignore
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# Full imports
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from asyncio import AbstractEventLoop, new_event_loop, set_event_loop, sleep
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from logging import basicConfig, getLogger
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from os import path
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from traceback import format_exc
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import multiprocessing
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import aiohttp_cors # type: ignore
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# Partial imports
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from aiohttp import client_exceptions
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from aiohttp.web import Application, Response, Request, get, run_app, static # type: ignore
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from aiohttp_jinja2 import setup as jinja_setup
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# local modules
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from .browser import PluginBrowser
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from .helpers import (REMOTE_DEBUGGER_UNIT, csrf_middleware, get_csrf_token,
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mkdir_as_user, get_system_pythonpaths, get_effective_user_id)
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from .injector import get_gamepadui_tab, Tab, close_old_tabs
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from .loader import Loader
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from .settings import SettingsManager
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from .updater import Updater
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from .utilities import Utilities
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from .customtypes import UserType
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basicConfig(
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level=get_log_level(),
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format="[%(module)s][%(levelname)s]: %(message)s"
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)
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logger = getLogger("Main")
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plugin_path = path.join(get_privileged_path(), "plugins")
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def chown_plugin_dir():
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if not path.exists(plugin_path): # For safety, create the folder before attempting to do anything with it
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mkdir_as_user(plugin_path)
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if not chown(plugin_path, UserType.HOST_USER) or not chmod(plugin_path, 555):
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logger.error(f"chown/chmod exited with a non-zero exit code")
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if get_chown_plugin_path() == True:
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chown_plugin_dir()
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class PluginManager:
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def __init__(self, loop: AbstractEventLoop) -> None:
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self.loop = loop
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self.web_app = Application()
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self.web_app.middlewares.append(csrf_middleware)
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self.cors = aiohttp_cors.setup(self.web_app, defaults={
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"https://steamloopback.host": aiohttp_cors.ResourceOptions(
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expose_headers="*",
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allow_headers="*",
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allow_credentials=True
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)
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})
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self.plugin_loader = Loader(self, plugin_path, self.loop, get_live_reload())
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self.settings = SettingsManager("loader", path.join(get_privileged_path(), "settings"))
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self.plugin_browser = PluginBrowser(plugin_path, self.plugin_loader.plugins, self.plugin_loader, self.settings)
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self.utilities = Utilities(self)
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self.updater = Updater(self)
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jinja_setup(self.web_app)
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async def startup(_: Application):
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if self.settings.getSetting("cef_forward", False):
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self.loop.create_task(service_start(REMOTE_DEBUGGER_UNIT))
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else:
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self.loop.create_task(service_stop(REMOTE_DEBUGGER_UNIT))
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self.loop.create_task(self.loader_reinjector())
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self.loop.create_task(self.load_plugins())
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self.web_app.on_startup.append(startup)
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self.loop.set_exception_handler(self.exception_handler)
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self.web_app.add_routes([get("/auth/token", self.get_auth_token)])
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for route in list(self.web_app.router.routes()):
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self.cors.add(route) # type: ignore
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self.web_app.add_routes([static("/static", path.join(path.dirname(__file__), 'static'))])
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self.web_app.add_routes([static("/legacy", path.join(path.dirname(__file__), 'legacy'))])
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def exception_handler(self, loop: AbstractEventLoop, context: Dict[str, str]):
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if context["message"] == "Unclosed connection":
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return
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loop.default_exception_handler(context)
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async def get_auth_token(self, request: Request):
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return Response(text=get_csrf_token())
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async def load_plugins(self):
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# await self.wait_for_server()
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logger.debug("Loading plugins")
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self.plugin_loader.import_plugins()
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# await inject_to_tab("SP", "window.syncDeckyPlugins();")
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if self.settings.getSetting("pluginOrder", None) == None:
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self.settings.setSetting("pluginOrder", list(self.plugin_loader.plugins.keys()))
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logger.debug("Did not find pluginOrder setting, set it to default")
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async def loader_reinjector(self):
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while True:
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tab = None
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nf = False
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dc = False
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while not tab:
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try:
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tab = await get_gamepadui_tab()
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except (client_exceptions.ClientConnectorError, client_exceptions.ServerDisconnectedError):
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if not dc:
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logger.debug("Couldn't connect to debugger, waiting...")
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dc = True
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pass
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except ValueError:
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if not nf:
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logger.debug("Couldn't find GamepadUI tab, waiting...")
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nf = True
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pass
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if not tab:
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await sleep(5)
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await tab.open_websocket()
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await tab.enable()
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await self.inject_javascript(tab, True)
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try:
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async for msg in tab.listen_for_message():
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# this gets spammed a lot
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if msg.get("method", None) != "Page.navigatedWithinDocument":
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logger.debug("Page event: " + str(msg.get("method", None)))
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if msg.get("method", None) == "Page.domContentEventFired":
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if not await tab.has_global_var("deckyHasLoaded", False):
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await self.inject_javascript(tab)
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if msg.get("method", None) == "Inspector.detached":
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logger.info("CEF has requested that we detach.")
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await tab.close_websocket()
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break
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# If this is a forceful disconnect the loop will just stop without any failure message. In this case, injector.py will handle this for us so we don't need to close the socket.
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# This is because of https://github.com/aio-libs/aiohttp/blob/3ee7091b40a1bc58a8d7846e7878a77640e96996/aiohttp/client_ws.py#L321
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logger.info("CEF has disconnected...")
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# At this point the loop starts again and we connect to the freshly started Steam client once it is ready.
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except Exception:
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logger.error("Exception while reading page events " + format_exc())
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await tab.close_websocket()
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pass
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# while True:
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# await sleep(5)
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# if not await tab.has_global_var("deckyHasLoaded", False):
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# logger.info("Plugin loader isn't present in Steam anymore, reinjecting...")
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# await self.inject_javascript(tab)
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async def inject_javascript(self, tab: Tab, first: bool=False, request: Request|None=None):
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logger.info("Loading Decky frontend!")
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try:
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if first:
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if await tab.has_global_var("deckyHasLoaded", False):
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await close_old_tabs()
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await tab.evaluate_js("try{if (window.deckyHasLoaded){setTimeout(() => location.reload(), 100)}else{window.deckyHasLoaded = true;(async()=>{try{while(!window.SP_REACT){await new Promise(r => setTimeout(r, 10))};await import('http://localhost:1337/frontend/index.js')}catch(e){console.error(e)};})();}}catch(e){console.error(e)}", False, False, False)
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except:
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logger.info("Failed to inject JavaScript into tab\n" + format_exc())
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pass
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def run(self):
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return run_app(self.web_app, host=get_server_host(), port=get_server_port(), loop=self.loop, access_log=None)
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def main():
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if ON_WINDOWS:
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# Fix windows/flask not recognising that .js means 'application/javascript'
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import mimetypes
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mimetypes.add_type('application/javascript', '.js')
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# Required for multiprocessing support in frozen files
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multiprocessing.freeze_support()
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else:
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if get_effective_user_id() != 0:
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logger.warning(f"decky is running as an unprivileged user, this is not officially supported and may cause issues")
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# Append the loader's plugin path to the recognized python paths
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sys.path.append(path.join(path.dirname(__file__), "plugin"))
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# Append the system and user python paths
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sys.path.extend(get_system_pythonpaths())
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loop = new_event_loop()
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set_event_loop(loop)
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PluginManager(loop).run()
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