| from typing import Dict, List
|
|
|
| from aioquic.h3.events import DataReceived, H3Event, Headers, HeadersReceived
|
| from aioquic.quic.connection import QuicConnection
|
| from aioquic.quic.events import QuicEvent, StreamDataReceived
|
|
|
| H0_ALPN = ["hq-interop"]
|
|
|
|
|
| class H0Connection:
|
| """
|
| An HTTP/0.9 connection object.
|
| """
|
|
|
| def __init__(self, quic: QuicConnection):
|
| self._buffer: Dict[int, bytes] = {}
|
| self._headers_received: Dict[int, bool] = {}
|
| self._is_client = quic.configuration.is_client
|
| self._quic = quic
|
|
|
| def handle_event(self, event: QuicEvent) -> List[H3Event]:
|
| http_events: List[H3Event] = []
|
|
|
| if isinstance(event, StreamDataReceived) and (event.stream_id % 4) == 0:
|
| data = self._buffer.pop(event.stream_id, b"") + event.data
|
| if not self._headers_received.get(event.stream_id, False):
|
| if self._is_client:
|
| http_events.append(
|
| HeadersReceived(
|
| headers=[], stream_ended=False, stream_id=event.stream_id
|
| )
|
| )
|
| elif data.endswith(b"\r\n") or event.end_stream:
|
| method, path = data.rstrip().split(b" ", 1)
|
| http_events.append(
|
| HeadersReceived(
|
| headers=[(b":method", method), (b":path", path)],
|
| stream_ended=False,
|
| stream_id=event.stream_id,
|
| )
|
| )
|
| data = b""
|
| else:
|
|
|
| self._buffer[event.stream_id] = data
|
| return http_events
|
| self._headers_received[event.stream_id] = True
|
|
|
| http_events.append(
|
| DataReceived(
|
| data=data, stream_ended=event.end_stream, stream_id=event.stream_id
|
| )
|
| )
|
|
|
| return http_events
|
|
|
| def send_data(self, stream_id: int, data: bytes, end_stream: bool) -> None:
|
| self._quic.send_stream_data(stream_id, data, end_stream)
|
|
|
| def send_headers(
|
| self, stream_id: int, headers: Headers, end_stream: bool = False
|
| ) -> None:
|
| if self._is_client:
|
| headers_dict = dict(headers)
|
| data = headers_dict[b":method"] + b" " + headers_dict[b":path"] + b"\r\n"
|
| else:
|
| data = b""
|
| self._quic.send_stream_data(stream_id, data, end_stream)
|
|
|
