Partially revert "Fix issue 1362 and add a default favicon.ico (#1369)"

Kept the favicon, but have reverted the rest, as it unfortunately did
not seem to prevent the issue from occurring.

Original discussion: https://github.com/ankitects/anki/pull/1369

This reverts commit 6d0f7e7f05.

qt/aqt/main.py

@@ -1698,7 +1698,6 @@ title="{}" {}>{}</button>""".format(
     def setupMediaServer(self) -> None:
         self.mediaServer = aqt.mediasrv.MediaServer(self)
         self.mediaServer.start()
-        self.mediaServer.await_ready()
 
     def baseHTML(self) -> str:
         return f'<base href="{self.serverURL()}">'

qt/aqt/mediasrv.py

@@ -3,20 +3,16 @@
 
 from __future__ import annotations
 
-import datetime
 import logging
 import mimetypes
 import os
 import re
-import socket
 import sys
 import threading
 import time
 import traceback
-from contextlib import contextmanager
 from dataclasses import dataclass
-from http import HTTPStatus, client
-from typing import Any, Generator
+from http import HTTPStatus
 
 import flask
 import flask_cors  # type: ignore
@@ -36,18 +32,6 @@ from aqt.deckoptions import DeckOptionsDialog
 from aqt.operations.deck import update_deck_configs
 from aqt.qt import *
 
-
-@contextmanager
-def http_connection(
-    *args: Any, **kwds: Any
-) -> Generator[client.HTTPConnection, None, None]:
-    resource = client.HTTPConnection(*args, **kwds)
-    try:
-        yield resource
-    finally:
-        resource.close()
-
-
 app = flask.Flask(__name__, root_path="/fake")
 flask_cors.CORS(app)
 
@@ -137,45 +121,6 @@ class MediaServer(threading.Thread):
         except KeyError:
             pass
 
-    def getHost(self) -> str:
-        self._ready.wait()
-        return str(self.server.effective_host)  # type: ignore
-
-    def await_ready(self) -> None:
-        """Block until webserver can respond to requests.
-        Potentially solves a race condition at startup where some resources
-        fail to load.
-        https://github.com/ankitects/anki/pull/1369
-        """
-        self._check_server(self.getHost(), self.getPort(), "/favicon.ico")
-
-    @classmethod
-    def _check_server(
-        cls,
-        host: str,
-        port: int,
-        path_info: str = "/",
-        timeout: int = 1,
-        retries: int = 30,
-    ) -> int:
-        """Perform a request until the server reply"""
-        if retries < 0:
-            return 0
-        # https://github.com/Pylons/webtest/blob/4b8a3ebf984185ff4fefb31b4d0cf82682e1fcf7/webtest/http.py#L123-L132
-        for index in range(retries):
-            if dev_mode or index > 0:
-                print(
-                    f"{datetime.datetime.now()} awaiting media server on {host}:{port}..."
-                )
-            try:
-                with http_connection(host, port, timeout=timeout) as conn:
-                    conn.request("GET", path_info)
-                    res = conn.getresponse()
-                    return res.status
-            except (socket.error, client.HTTPException):
-                time.sleep(0.3)
-        return 0
-
 
 @app.route("/favicon.ico")
 def favicon() -> Response: