type hints on main,plugin,updater,utilites.localsocket

backend/localsocket.py

@@ -1,10 +1,13 @@
-import asyncio, time, random
+import asyncio, time
+from typing import Awaitable, Callable
+import random
+
 from localplatform import ON_WINDOWS
 
 BUFFER_LIMIT = 2 ** 20  # 1 MiB
 
 class UnixSocket:
-    def __init__(self, on_new_message):
+    def __init__(self, on_new_message: Callable[[str], Awaitable[str|None]]):
         '''
         on_new_message takes 1 string argument.
         It's return value gets used, if not None, to write data to the socket.
@@ -46,28 +49,32 @@ class UnixSocket:
         self.reader = None
 
     async def read_single_line(self) -> str|None:
-        reader, writer = await self.get_socket_connection()
+        reader, _ = await self.get_socket_connection()
 
-        if self.reader == None:
-            return None
+        try:
+            assert reader
+        except AssertionError:
+            return
 
         return await self._read_single_line(reader)
 
     async def write_single_line(self, message : str):
-        reader, writer = await self.get_socket_connection()
+        _, writer = await self.get_socket_connection()
 
-        if self.writer == None:
-            return;
+        try:
+            assert writer
+        except AssertionError:
+            return
 
         await self._write_single_line(writer, message)
 
-    async def _read_single_line(self, reader) -> str:
+    async def _read_single_line(self, reader: asyncio.StreamReader) -> str:
         line = bytearray()
         while True:
             try:
                 line.extend(await reader.readuntil())
             except asyncio.LimitOverrunError:
-                line.extend(await reader.read(reader._limit))
+                line.extend(await reader.read(reader._limit)) # type: ignore
                 continue
             except asyncio.IncompleteReadError as err:
                 line.extend(err.partial)
@@ -77,27 +84,27 @@ class UnixSocket:
 
         return line.decode("utf-8")
     
-    async def _write_single_line(self, writer, message : str):
+    async def _write_single_line(self, writer: asyncio.StreamWriter, message : str):
         if not message.endswith("\n"):
             message += "\n"
 
         writer.write(message.encode("utf-8"))
         await writer.drain()
 
-    async def _listen_for_method_call(self, reader, writer):
+    async def _listen_for_method_call(self, reader: asyncio.StreamReader, writer: asyncio.StreamWriter):
         while True:
             line = await self._read_single_line(reader)
 
             try:
                 res = await self.on_new_message(line)
-            except Exception as e:
+            except Exception:
                 return
 
             if res != None:
                 await self._write_single_line(writer, res)
             
 class PortSocket (UnixSocket):
-    def __init__(self, on_new_message):
+    def __init__(self, on_new_message: Callable[[str], Awaitable[str|None]]):
         '''
         on_new_message takes 1 string argument.
         It's return value gets used, if not None, to write data to the socket.
@@ -125,7 +132,7 @@ class PortSocket (UnixSocket):
             return True
 
 if ON_WINDOWS:
-    class LocalSocket (PortSocket): 
+    class LocalSocket (PortSocket):  # type: ignore
         pass
 else:
     class LocalSocket (UnixSocket):

backend/main.py

@@ -1,5 +1,6 @@
 # Change PyInstaller files permissions
 import sys
+from typing import Dict
 from localplatform import (chmod, chown, service_stop, service_start,
                             ON_WINDOWS, get_log_level, get_live_reload, 
                             get_server_port, get_server_host, get_chown_plugin_path,
@@ -16,7 +17,7 @@ import multiprocessing
 import aiohttp_cors # type: ignore
 # Partial imports
 from aiohttp import client_exceptions
-from aiohttp.web import Application, Response, get, run_app, static # type: ignore
+from aiohttp.web import Application, Response, Request, get, run_app, static # type: ignore
 from aiohttp_jinja2 import setup as jinja_setup
 
 # local modules
@@ -70,7 +71,7 @@ class PluginManager:
 
         jinja_setup(self.web_app)
 
-        async def startup(_):
+        async def startup(_: Application):
             if self.settings.getSetting("cef_forward", False):
                 self.loop.create_task(service_start(REMOTE_DEBUGGER_UNIT))
             else:
@@ -84,16 +85,16 @@ class PluginManager:
         self.web_app.add_routes([get("/auth/token", self.get_auth_token)])
 
         for route in list(self.web_app.router.routes()):
-            self.cors.add(route)
+            self.cors.add(route) # type: ignore
         self.web_app.add_routes([static("/static", path.join(path.dirname(__file__), 'static'))])
         self.web_app.add_routes([static("/legacy", path.join(path.dirname(__file__), 'legacy'))])
 
-    def exception_handler(self, loop, context):
+    def exception_handler(self, loop: AbstractEventLoop, context: Dict[str, str]):
         if context["message"] == "Unclosed connection":
             return
         loop.default_exception_handler(context)
 
-    async def get_auth_token(self, request):
+    async def get_auth_token(self, request: Request):
         return Response(text=get_csrf_token())
 
     async def load_plugins(self):
@@ -144,7 +145,7 @@ class PluginManager:
                 # This is because of https://github.com/aio-libs/aiohttp/blob/3ee7091b40a1bc58a8d7846e7878a77640e96996/aiohttp/client_ws.py#L321
                 logger.info("CEF has disconnected...")
                 # At this point the loop starts again and we connect to the freshly started Steam client once it is ready.
-            except Exception as e:
+            except Exception:
                 logger.error("Exception while reading page events " + format_exc())
                 await tab.close_websocket()
                 pass
@@ -154,7 +155,7 @@ class PluginManager:
         #         logger.info("Plugin loader isn't present in Steam anymore, reinjecting...")
         #         await self.inject_javascript(tab)
 
-    async def inject_javascript(self, tab: Tab, first=False, request=None):
+    async def inject_javascript(self, tab: Tab, first: bool=False, request: Request|None=None):
         logger.info("Loading Decky frontend!")
         try:
             if first:

backend/plugin.py

@@ -20,7 +20,7 @@ class PluginWrapper:
         self.plugin_path = plugin_path
         self.plugin_directory = plugin_directory
         self.method_call_lock = Lock()
-        self.socket = LocalSocket(self._on_new_message)
+        self.socket: LocalSocket = LocalSocket(self._on_new_message)
 
         self.version = None
 

backend/updater.py

@@ -1,23 +1,31 @@
 import os
 import shutil
-import uuid
 from asyncio import sleep
-from ensurepip import version
 from json.decoder import JSONDecodeError
 from logging import getLogger
 from os import getcwd, path, remove
+from typing import List, TypedDict
+from backend.main import PluginManager
 from localplatform import chmod, service_restart, ON_LINUX, get_keep_systemd_service, get_selinux
 
 from aiohttp import ClientSession, web
 
 import helpers
-from injector import get_gamepadui_tab, inject_to_tab
+from injector import get_gamepadui_tab
 from settings import SettingsManager
 
 logger = getLogger("Updater")
 
+class RemoteVerAsset(TypedDict):
+    name: str
+    browser_download_url: str
+class RemoteVer(TypedDict):
+    tag_name: str
+    prerelease: bool
+    assets: List[RemoteVerAsset]
+
 class Updater:
-    def __init__(self, context) -> None:
+    def __init__(self, context: PluginManager) -> None:
         self.context = context
         self.settings = self.context.settings
         # Exposes updater methods to frontend
@@ -28,8 +36,8 @@ class Updater:
             "do_restart": self.do_restart,
             "check_for_updates": self.check_for_updates
         }
-        self.remoteVer = None
-        self.allRemoteVers = None
+        self.remoteVer: RemoteVer | None = None
+        self.allRemoteVers: List[RemoteVer] = []
         self.localVer = helpers.get_loader_version()
 
         try:
@@ -44,7 +52,7 @@ class Updater:
             ])
             context.loop.create_task(self.version_reloader())
 
-    async def _handle_server_method_call(self, request):
+    async def _handle_server_method_call(self, request: web.Request):
         method_name = request.match_info["method_name"]
         try:
             args = await request.json()
@@ -52,7 +60,7 @@ class Updater:
             args = {}
         res = {}
         try:
-            r = await self.updater_methods[method_name](**args)
+            r = await self.updater_methods[method_name](**args) # type: ignore
             res["result"] = r
             res["success"] = True
         except Exception as e:
@@ -105,7 +113,7 @@ class Updater:
         selectedBranch = self.get_branch(self.context.settings)
         async with ClientSession() as web:
             async with web.request("GET", "https://api.github.com/repos/SteamDeckHomebrew/decky-loader/releases", ssl=helpers.get_ssl_context()) as res:
-                remoteVersions = await res.json()
+                remoteVersions: List[RemoteVer] = await res.json()
                 if selectedBranch == 0:
                     logger.debug("release type: release")
                     remoteVersions = list(filter(lambda ver: ver["tag_name"].startswith("v") and not ver["prerelease"] and not ver["tag_name"].find("-pre") > 0 and ver["tag_name"], remoteVersions))
@@ -142,6 +150,7 @@ class Updater:
 
     async def do_update(self):
         logger.debug("Starting update.")
+        assert self.remoteVer
         version = self.remoteVer["tag_name"]
         download_url = None
         download_filename = "PluginLoader" if ON_LINUX else "PluginLoader.exe"

backend/utilities.py

@@ -1,3 +1,4 @@
+from os import stat_result
 import uuid
 from json.decoder import JSONDecodeError
 from os.path import splitext
@@ -5,12 +6,12 @@ import re
 from traceback import format_exc
 from stat import FILE_ATTRIBUTE_HIDDEN # type: ignore
 
-from asyncio import start_server, gather, open_connection
+from asyncio import StreamReader, StreamWriter, start_server, gather, open_connection
 from aiohttp import ClientSession, web
-from typing import Dict
+from typing import Callable, Coroutine, Dict, Any, List, TypedDict
 
 from logging import getLogger
-from backend.browser import PluginInstallType
+from backend.browser import PluginInstallRequest, PluginInstallType
 from backend.main import PluginManager
 from injector import inject_to_tab, get_gamepadui_tab, close_old_tabs, get_tab
 from pathlib import Path
@@ -18,10 +19,15 @@ from localplatform import ON_WINDOWS
 import helpers
 from localplatform import service_stop, service_start, get_home_path, get_username
 
+class FilePickerObj(TypedDict):
+    file: Path
+    filest: stat_result
+    is_dir: bool
+
 class Utilities:
     def __init__(self, context: PluginManager) -> None:
         self.context = context
-        self.util_methods: Dict[] = {
+        self.util_methods: Dict[str, Callable[..., Coroutine[Any, Any, Any]]] = {
             "ping": self.ping,
             "http_request": self.http_request,
             "install_plugin": self.install_plugin,
@@ -54,7 +60,7 @@ class Utilities:
                 web.post("/methods/{method_name}", self._handle_server_method_call)
             ])
 
-    async def _handle_server_method_call(self, request):
+    async def _handle_server_method_call(self, request: web.Request):
         method_name = request.match_info["method_name"]
         try:
             args = await request.json()
@@ -70,7 +76,7 @@ class Utilities:
             res["success"] = False
         return web.json_response(res)
 
-    async def install_plugin(self, artifact="", name="No name", version="dev", hash=False, install_type=PluginInstallType.INSTALL):
+    async def install_plugin(self, artifact: str="", name: str="No name", version: str="dev", hash: str="", install_type: PluginInstallType=PluginInstallType.INSTALL):
         return await self.context.plugin_browser.request_plugin_install(
             artifact=artifact,
             name=name,
@@ -79,21 +85,21 @@ class Utilities:
             install_type=install_type
         )
 
-    async def install_plugins(self, requests):
+    async def install_plugins(self, requests: List[PluginInstallRequest]):
         return await self.context.plugin_browser.request_multiple_plugin_installs(
             requests=requests
         )
 
-    async def confirm_plugin_install(self, request_id):
+    async def confirm_plugin_install(self, request_id: str):
         return await self.context.plugin_browser.confirm_plugin_install(request_id)
 
-    def cancel_plugin_install(self, request_id):
+    async def cancel_plugin_install(self, request_id: str):
         return self.context.plugin_browser.cancel_plugin_install(request_id)
 
-    async def uninstall_plugin(self, name):
+    async def uninstall_plugin(self, name: str):
         return await self.context.plugin_browser.uninstall_plugin(name)
 
-    async def http_request(self, method="", url="", **kwargs):
+    async def http_request(self, method: str="", url: str="", **kwargs: Any):
         async with ClientSession() as web:
             res = await web.request(method, url, ssl=helpers.get_ssl_context(), **kwargs)
             text = await res.text()
@@ -103,12 +109,13 @@ class Utilities:
             "body": text
         }
 
-    async def ping(self, **kwargs):
+    async def ping(self, **kwargs: Any):
         return "pong"
 
-    async def execute_in_tab(self, tab, run_async, code):
+    async def execute_in_tab(self, tab: str, run_async: bool, code: str):
         try:
             result = await inject_to_tab(tab, code, run_async)
+            assert result
             if "exceptionDetails" in result["result"]:
                 return {
                     "success": False,
@@ -125,7 +132,7 @@ class Utilities:
               "result": e
             }
 
-    async def inject_css_into_tab(self, tab, style):
+    async def inject_css_into_tab(self, tab: str, style: str):
         try:
             css_id = str(uuid.uuid4())
 
@@ -139,7 +146,7 @@ class Utilities:
                 }})()
                 """, False)
 
-            if "exceptionDetails" in result["result"]:
+            if result and "exceptionDetails" in result["result"]:
                 return {
                     "success": False,
                     "result": result["result"]
@@ -155,7 +162,7 @@ class Utilities:
                 "result": e
             }
 
-    async def remove_css_from_tab(self, tab, css_id):
+    async def remove_css_from_tab(self, tab: str, css_id: str):
         try:
             result = await inject_to_tab(tab,
                 f"""
@@ -167,7 +174,7 @@ class Utilities:
                 }})()
                 """, False)
 
-            if "exceptionDetails" in result["result"]:
+            if result and "exceptionDetails" in result["result"]:
                 return {
                     "success": False,
                     "result": result
@@ -182,10 +189,10 @@ class Utilities:
                 "result": e
             }
 
-    async def get_setting(self, key, default):
+    async def get_setting(self, key: str, default: Any):
         return self.context.settings.getSetting(key, default)
 
-    async def set_setting(self, key, value):
+    async def set_setting(self, key: str, value: Any):
         return self.context.settings.setSetting(key, value)
 
     async def allow_remote_debugging(self):
@@ -210,17 +217,18 @@ class Utilities:
         if path == None:
             path = get_home_path()
 
-        path = Path(path).resolve()
+        path_obj = Path(path).resolve()
 
-        files, folders = [], []
+        files: List[FilePickerObj] = []
+        folders: List[FilePickerObj] = []
 
         #Resolving all files/folders in the requested directory
-        for file in path.iterdir():
+        for file in path_obj.iterdir():
             if file.exists():
                 filest = file.stat()
                 is_hidden = file.name.startswith('.')
                 if ON_WINDOWS and not is_hidden:
-                    is_hidden = bool(filest.st_file_attributes & FILE_ATTRIBUTE_HIDDEN)
+                    is_hidden = bool(filest.st_file_attributes & FILE_ATTRIBUTE_HIDDEN) # type: ignore
                 if include_folders and file.is_dir():
                     if (is_hidden and include_hidden) or not is_hidden:
                         folders.append({"file": file, "filest": filest, "is_dir": True})
@@ -234,9 +242,9 @@ class Utilities:
         if filter_for is not None:
             try:
                 if re.compile(filter_for):
-                    files = filter(lambda file: re.search(filter_for, file.name) != None, files)
+                    files = list(filter(lambda file: re.search(filter_for, file["file"].name) != None, files))
             except re.error:
-                files = filter(lambda file: file.name.find(filter_for) != -1, files)
+                files = list(filter(lambda file: file["file"].name.find(filter_for) != -1, files))
         
         # Ordering logic
         ord_arg = order_by.split("_")
@@ -256,6 +264,9 @@ class Utilities:
                 files.sort(key=lambda x: x['filest'].st_size, reverse = not rev)
                 # Folders has no file size, order by name instead
                 folders.sort(key=lambda x: x['file'].name.casefold())
+            case _:
+                files.sort(key=lambda x: x['file'].name.casefold(), reverse = rev)
+                folders.sort(key=lambda x: x['file'].name.casefold(), reverse = rev)
         
         #Constructing the final file list, folders first
         all =   [{
@@ -275,14 +286,14 @@ class Utilities:
         
 
     # Based on https://stackoverflow.com/a/46422554/13174603
-    def start_rdt_proxy(self, ip, port):
-        async def pipe(reader, writer):
+    def start_rdt_proxy(self, ip: str, port: int):
+        async def pipe(reader: StreamReader, writer: StreamWriter):
             try:
                 while not reader.at_eof():
                     writer.write(await reader.read(2048))
             finally:
                 writer.close()
-        async def handle_client(local_reader, local_writer):
+        async def handle_client(local_reader: StreamReader, local_writer: StreamWriter):
             try:
                 remote_reader, remote_writer = await open_connection(
                     ip, port)
@@ -298,7 +309,8 @@ class Utilities:
     def stop_rdt_proxy(self):
         if self.rdt_proxy_server:
             self.rdt_proxy_server.close()
-            self.rdt_proxy_task.cancel()
+            if self.rdt_proxy_task:
+                self.rdt_proxy_task.cancel()
 
     async def _enable_rdt(self):
         # TODO un-hardcode port
@@ -348,11 +360,11 @@ class Utilities:
         await tab.evaluate_js("location.reload();", False, True, False)
         self.logger.info("React DevTools disabled")
 
-    async def get_user_info(self) -> dict:
+    async def get_user_info(self) -> Dict[str, str]:
         return {
             "username": get_username(),
             "path": get_home_path()
         }
     
-    async def get_tab_id(self, name):
+    async def get_tab_id(self, name: str):
         return (await get_tab(name)).id