from collections.abc import Mapping, Sequence
from io import BytesIO
from re import Pattern

from waitress.adjustments import Adjustments
from waitress.receiver import ChunkedReceiver, FixedStreamReceiver
from waitress.utilities import Error

def unquote_bytes_to_wsgi(bytestring: str | bytes | bytearray) -> str: ...

class ParsingError(Exception): ...
class TransferEncodingNotImplemented(Exception): ...

class HTTPRequestParser:
    completed: bool
    empty: bool
    expect_continue: bool
    headers_finished: bool
    header_plus: bytes
    chunked: bool
    content_length: int
    header_bytes_received: int
    body_bytes_received: int
    body_rcv: ChunkedReceiver | FixedStreamReceiver | None
    version: str
    error: Error | None
    connection_close: bool
    headers: Mapping[str, str]
    adj: Adjustments
    def __init__(self, adj: Adjustments) -> None: ...
    def received(self, data: bytes) -> int: ...
    first_line: str
    command: bytes
    url_scheme: str
    def parse_header(self, header_plus: bytes) -> None: ...
    def get_body_stream(self) -> BytesIO: ...
    def close(self) -> None: ...

def split_uri(uri: bytes) -> tuple[str, str, bytes, str, str]: ...
def get_header_lines(header: bytes) -> Sequence[bytes]: ...

first_line_re: Pattern[str]

def crack_first_line(line: str) -> tuple[bytes, bytes, bytes]: ...