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/// import asyncio import zlib from concurrent.futures import Executor from typing import Optional, cast try: try: import brotlicffi as brotli except ImportError: import brotli HAS_BROTLI = True except ImportError: # pragma: no cover HAS_BROTLI = False MAX_SYNC_CHUNK_SIZE = 1024 def encoding_to_mode( encoding: Optional[str] = None, suppress_deflate_header: bool = False, ) -> int: if encoding == "gzip": return 16 + zlib.MAX_WBITS return -zlib.MAX_WBITS if suppress_deflate_header else zlib.MAX_WBITS class ZlibBaseHandler: def __init__( self, mode: int, executor: Optional[Executor] = None, max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE, ): self._mode = mode self._executor = executor self._max_sync_chunk_size = max_sync_chunk_size class ZLibCompressor(ZlibBaseHandler): def __init__( self, encoding: Optional[str] = None, suppress_deflate_header: bool = False, level: Optional[int] = None, wbits: Optional[int] = None, strategy: int = zlib.Z_DEFAULT_STRATEGY, executor: Optional[Executor] = None, max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE, ): super().__init__( mode=encoding_to_mode(encoding, suppress_deflate_header) if wbits is None else wbits, executor=executor, max_sync_chunk_size=max_sync_chunk_size, ) if level is None: self._compressor = zlib.compressobj(wbits=self._mode, strategy=strategy) else: self._compressor = zlib.compressobj( wbits=self._mode, strategy=strategy, level=level ) self._compress_lock = asyncio.Lock() def compress_sync(self, data: bytes) -> bytes: return self._compressor.compress(data) async def compress(self, data: bytes) -> bytes: async with self._compress_lock: # To ensure the stream is consistent in the event # there are multiple writers, we need to lock # the compressor so that only one writer can # compress at a time. if ( self._max_sync_chunk_size is not None and len(data) > self._max_sync_chunk_size ): return await asyncio.get_event_loop().run_in_executor( self._executor, self.compress_sync, data ) return self.compress_sync(data) def flush(self, mode: int = zlib.Z_FINISH) -> bytes: return self._compressor.flush(mode) class ZLibDecompressor(ZlibBaseHandler): def __init__( self, encoding: Optional[str] = None, suppress_deflate_header: bool = False, executor: Optional[Executor] = None, max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE, ): super().__init__( mode=encoding_to_mode(encoding, suppress_deflate_header), executor=executor, max_sync_chunk_size=max_sync_chunk_size, ) self._decompressor = zlib.decompressobj(wbits=self._mode) def decompress_sync(self, data: bytes, max_length: int = 0)