C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// """Http related parsers and protocol.""" import asyncio import zlib from typing import Any, Awaitable, Callable, NamedTuple, Optional, Union # noqa from multidict import CIMultiDict from .abc import AbstractStreamWriter from .base_protocol import BaseProtocol from .compression_utils import ZLibCompressor from .helpers import NO_EXTENSIONS __all__ = ("StreamWriter", "HttpVersion", "HttpVersion10", "HttpVersion11") class HttpVersion(NamedTuple): major: int minor: int HttpVersion10 = HttpVersion(1, 0) HttpVersion11 = HttpVersion(1, 1) _T_OnChunkSent = Optional[Callable[[bytes], Awaitable[None]]] _T_OnHeadersSent = Optional[Callable[["CIMultiDict[str]"], Awaitable[None]]] class StreamWriter(AbstractStreamWriter): def __init__( self, protocol: BaseProtocol, loop: asyncio.AbstractEventLoop, on_chunk_sent: _T_OnChunkSent = None, on_headers_sent: _T_OnHeadersSent = None, ) -> None: self._protocol = protocol self.loop = loop self.length = None self.chunked = False self.buffer_size = 0 self.output_size = 0 self._eof = False self._compress: Optional[ZLibCompressor] = None self._drain_waiter = None self._on_chunk_sent: _T_OnChunkSent = on_chunk_sent self._on_headers_sent: _T_OnHeadersSent = on_headers_sent @property def transport(self) -> Optional[asyncio.Transport]: return self._protocol.transport @property def protocol(self) -> BaseProtocol: return self._protocol def enable_chunking(self) -> None: self.chunked = True def enable_compression( self, encoding: str = "deflate", strategy: int = zlib.Z_DEFAULT_STRATEGY ) -> None: self._compress = ZLibCompressor(encoding=encoding, strategy=strategy) def _write(self, chunk: bytes) -> None: size = len(chunk) self.buffer_size += size self.output_size += size transport = self.transport if not self._protocol.connected or transport is None or transport.is_closing(): raise ConnectionResetError("Cannot write to closing transport") transport.write(chunk) async def write( self, chunk: bytes, *, drain: bool = True, LIMIT: int = 0x10000 ) -> None: """Writes chunk of data to a stream. write_eof() indicates end of stream. writer can't be used after write_eof() method being called. write() return drain future. """ if self._on_chunk_sent is not None: await self._on_chunk_sent(chunk) if isinstance(chunk, memoryview): if chunk.nbytes != len(chunk): # just reshape it chunk = chunk.cast("c") if self._compress is not None: chunk = await self._compress.compress(chunk) if not chunk: return if self.length is not None: chunk_len = len(chunk) if self.length >= chunk_len: self.length = self.length - chunk_len else: chunk = chunk[: self.length] self.length = 0 if not chunk: return if chunk: if self.chunked: chunk_len_pre = ("%x\r\n" % len(chunk)).encode("ascii") chunk = chunk_len_pre + chunk + b"\r\n" self._write(chunk) if self.buffer_size > LIMIT and drain: self.buffer_size = 0 await self.drain() async def write_headers( self, status_line: str, headers: "CIMultiDict[str]" ) -> None: """Write request/response status and headers.""" if self._on_headers_sent is not None: await self._on_headers_sent(headers) # status + headers buf = _serialize_headers(status_line, headers) self._write(buf) async def write_eof(self, chunk: bytes = b"") -> None: if self._eof: return if chunk and self._on_chunk_sent is not None: await self._on_chunk_sent(chunk) if self._compress: