Release 22.6 (#2487)

sanic/server/async_server.py

@@ -5,7 +5,6 @@ import asyncio
 from typing import TYPE_CHECKING
 
 from sanic.exceptions import SanicException
-from sanic.log import deprecation
 
 
 if TYPE_CHECKING:
@@ -35,15 +34,6 @@ class AsyncioServer:
         self.serve_coro = serve_coro
         self.server = None
 
-    @property
-    def init(self):
-        deprecation(
-            "AsyncioServer.init has been deprecated and will be removed "
-            "in v22.6. Use Sanic.state.is_started instead.",
-            22.6,
-        )
-        return self.app.state.is_started
-
     def startup(self):
         """
         Trigger "before_server_start" events

sanic/server/protocols/http_protocol.py

@@ -2,8 +2,6 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING, Optional
 
-from aioquic.h3.connection import H3_ALPN, H3Connection
-
 from sanic.http.constants import HTTP
 from sanic.http.http3 import Http3
 from sanic.touchup.meta import TouchUpMeta
@@ -17,13 +15,6 @@ import sys
 from asyncio import CancelledError
 from time import monotonic as current_time
 
-from aioquic.asyncio import QuicConnectionProtocol
-from aioquic.quic.events import (
-    DatagramFrameReceived,
-    ProtocolNegotiated,
-    QuicEvent,
-)
-
 from sanic.exceptions import RequestTimeout, ServiceUnavailable
 from sanic.http import Http, Stage
 from sanic.log import Colors, error_logger, logger
@@ -32,6 +23,21 @@ from sanic.request import Request
 from sanic.server.protocols.base_protocol import SanicProtocol
 
 
+ConnectionProtocol = type("ConnectionProtocol", (), {})
+try:
+    from aioquic.asyncio import QuicConnectionProtocol
+    from aioquic.h3.connection import H3_ALPN, H3Connection
+    from aioquic.quic.events import (
+        DatagramFrameReceived,
+        ProtocolNegotiated,
+        QuicEvent,
+    )
+
+    ConnectionProtocol = QuicConnectionProtocol
+except ModuleNotFoundError:  # no cov
+    ...
+
+
 class HttpProtocolMixin:
     __slots__ = ()
     __version__: HTTP
@@ -278,7 +284,7 @@ class HttpProtocol(HttpProtocolMixin, SanicProtocol, metaclass=TouchUpMeta):
             error_logger.exception("protocol.data_received")
 
 
-class Http3Protocol(HttpProtocolMixin, QuicConnectionProtocol):
+class Http3Protocol(HttpProtocolMixin, ConnectionProtocol):  # type: ignore
     HTTP_CLASS = Http3
     __version__ = HTTP.VERSION_3
 

sanic/server/runners.py

@@ -6,6 +6,7 @@ from ssl import SSLContext
 from typing import TYPE_CHECKING, Dict, Optional, Type, Union
 
 from sanic.config import Config
+from sanic.exceptions import ServerError
 from sanic.http.constants import HTTP
 from sanic.http.tls import get_ssl_context
 from sanic.server.events import trigger_events
@@ -23,8 +24,6 @@ from functools import partial
 from signal import SIG_IGN, SIGINT, SIGTERM, Signals
 from signal import signal as signal_func
 
-from aioquic.asyncio import serve as quic_serve
-
 from sanic.application.ext import setup_ext
 from sanic.compat import OS_IS_WINDOWS, ctrlc_workaround_for_windows
 from sanic.http.http3 import SessionTicketStore, get_config
@@ -39,6 +38,14 @@ from sanic.server.socket import (
 )
 
 
+try:
+    from aioquic.asyncio import serve as quic_serve
+
+    HTTP3_AVAILABLE = True
+except ModuleNotFoundError:  # no cov
+    HTTP3_AVAILABLE = False
+
+
 def serve(
     host,
     port,
@@ -273,6 +280,10 @@ def _serve_http_3(
     register_sys_signals: bool = True,
     run_multiple: bool = False,
 ):
+    if not HTTP3_AVAILABLE:
+        raise ServerError(
+            "Cannot run HTTP/3 server without aioquic installed. "
+        )
     protocol = partial(Http3Protocol, app=app)
     ticket_store = SessionTicketStore()
     ssl_context = get_ssl_context(app, ssl)