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EDIT :: http_exceptions.py

"""Low-level http related exceptions.""" from textwrap import indent from typing import Optional, Union from .typedefs import _CIMultiDict __all__ = ("HttpProcessingError",) class HttpProcessingError(Exception): """HTTP error. Shortcut for raising HTTP errors with custom code, message and headers. code: HTTP Error code. message: (optional) Error message. headers: (optional) Headers to be sent in response, a list of pairs """ code = 0 message = "" headers = None def __init__( self, *, code: Optional[int] = None, message: str = "", headers: Optional[_CIMultiDict] = None, ) -> None: if code is not None: self.code = code self.headers = headers self.message = message def __str__(self) -> str: msg = indent(self.message, " ") return f"{self.code}, message:\n{msg}" def __repr__(self) -> str: return f"<{self.__class__.__name__}: {self.code}, message={self.message!r}>" class BadHttpMessage(HttpProcessingError): code = 400 message = "Bad Request" def __init__(self, message: str, *, headers: Optional[_CIMultiDict] = None) -> None: super().__init__(message=message, headers=headers) self.args = (message,) class HttpBadRequest(BadHttpMessage): code = 400 message = "Bad Request" class PayloadEncodingError(BadHttpMessage): """Base class for payload errors""" class ContentEncodingError(PayloadEncodingError): """Content encoding error.""" class TransferEncodingError(PayloadEncodingError): """transfer encoding error.""" class ContentLengthError(PayloadEncodingError): """Not enough data for satisfy content length header.""" class LineTooLong(BadHttpMessage): def __init__( self, line: str, limit: str = "Unknown", actual_size: str = "Unknown" ) -> None: super().__init__( f"Got more than {limit} bytes ({actual_size}) when reading {line}." ) self.args = (line, limit, actual_size) class InvalidHeader(BadHttpMessage): def __init__(self, hdr: Union[bytes, str]) -> None: hdr_s = hdr.decode(errors="backslashreplace") if isinstance(hdr, bytes) else hdr super().__init__(f"Invalid HTTP header: {hdr!r}") self.hdr = hdr_s self.args = (hdr,) class BadStatusLine(BadHttpMessage): def __init__(self, line: str = "", error: Optional[str] = None) -> None: if not isinstance(line, str): line = repr(line) super().__init__(error or f"Bad status line {line!r}") self.args = (line,) self.line = line class InvalidURLError(BadHttpMessage): pass

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