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414 lines
9.9 KiB
Python
414 lines
9.9 KiB
Python
import warnings
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from typing import Any, Dict, Iterable, List, Optional, Set # noqa
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from yarl import URL
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from .typedefs import LooseHeaders, StrOrURL
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from .web_response import Response
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__all__ = (
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'HTTPException',
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'HTTPError',
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'HTTPRedirection',
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'HTTPSuccessful',
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'HTTPOk',
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'HTTPCreated',
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'HTTPAccepted',
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'HTTPNonAuthoritativeInformation',
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'HTTPNoContent',
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'HTTPResetContent',
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'HTTPPartialContent',
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'HTTPMultipleChoices',
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'HTTPMovedPermanently',
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'HTTPFound',
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'HTTPSeeOther',
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'HTTPNotModified',
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'HTTPUseProxy',
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'HTTPTemporaryRedirect',
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'HTTPPermanentRedirect',
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'HTTPClientError',
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'HTTPBadRequest',
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'HTTPUnauthorized',
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'HTTPPaymentRequired',
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'HTTPForbidden',
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'HTTPNotFound',
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'HTTPMethodNotAllowed',
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'HTTPNotAcceptable',
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'HTTPProxyAuthenticationRequired',
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'HTTPRequestTimeout',
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'HTTPConflict',
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'HTTPGone',
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'HTTPLengthRequired',
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'HTTPPreconditionFailed',
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'HTTPRequestEntityTooLarge',
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'HTTPRequestURITooLong',
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'HTTPUnsupportedMediaType',
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'HTTPRequestRangeNotSatisfiable',
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'HTTPExpectationFailed',
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'HTTPMisdirectedRequest',
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'HTTPUnprocessableEntity',
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'HTTPFailedDependency',
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'HTTPUpgradeRequired',
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'HTTPPreconditionRequired',
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'HTTPTooManyRequests',
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'HTTPRequestHeaderFieldsTooLarge',
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'HTTPUnavailableForLegalReasons',
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'HTTPServerError',
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'HTTPInternalServerError',
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'HTTPNotImplemented',
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'HTTPBadGateway',
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'HTTPServiceUnavailable',
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'HTTPGatewayTimeout',
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'HTTPVersionNotSupported',
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'HTTPVariantAlsoNegotiates',
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'HTTPInsufficientStorage',
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'HTTPNotExtended',
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'HTTPNetworkAuthenticationRequired',
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)
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############################################################
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# HTTP Exceptions
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############################################################
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class HTTPException(Response, Exception):
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# You should set in subclasses:
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# status = 200
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status_code = -1
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empty_body = False
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__http_exception__ = True
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def __init__(self, *,
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headers: Optional[LooseHeaders]=None,
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reason: Optional[str]=None,
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body: Any=None,
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text: Optional[str]=None,
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content_type: Optional[str]=None) -> None:
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if body is not None:
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warnings.warn(
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"body argument is deprecated for http web exceptions",
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DeprecationWarning)
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Response.__init__(self, status=self.status_code,
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headers=headers, reason=reason,
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body=body, text=text, content_type=content_type)
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Exception.__init__(self, self.reason)
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if self.body is None and not self.empty_body:
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self.text = "{}: {}".format(self.status, self.reason)
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def __bool__(self) -> bool:
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return True
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class HTTPError(HTTPException):
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"""Base class for exceptions with status codes in the 400s and 500s."""
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class HTTPRedirection(HTTPException):
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"""Base class for exceptions with status codes in the 300s."""
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class HTTPSuccessful(HTTPException):
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"""Base class for exceptions with status codes in the 200s."""
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class HTTPOk(HTTPSuccessful):
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status_code = 200
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class HTTPCreated(HTTPSuccessful):
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status_code = 201
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class HTTPAccepted(HTTPSuccessful):
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status_code = 202
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class HTTPNonAuthoritativeInformation(HTTPSuccessful):
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status_code = 203
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class HTTPNoContent(HTTPSuccessful):
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status_code = 204
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empty_body = True
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class HTTPResetContent(HTTPSuccessful):
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status_code = 205
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empty_body = True
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class HTTPPartialContent(HTTPSuccessful):
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status_code = 206
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############################################################
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# 3xx redirection
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############################################################
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class _HTTPMove(HTTPRedirection):
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def __init__(self,
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location: StrOrURL,
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*,
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headers: Optional[LooseHeaders]=None,
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reason: Optional[str]=None,
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body: Any=None,
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text: Optional[str]=None,
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content_type: Optional[str]=None) -> None:
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if not location:
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raise ValueError("HTTP redirects need a location to redirect to.")
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super().__init__(headers=headers, reason=reason,
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body=body, text=text, content_type=content_type)
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self.headers['Location'] = str(URL(location))
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self.location = location
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class HTTPMultipleChoices(_HTTPMove):
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status_code = 300
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class HTTPMovedPermanently(_HTTPMove):
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status_code = 301
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class HTTPFound(_HTTPMove):
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status_code = 302
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# This one is safe after a POST (the redirected location will be
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# retrieved with GET):
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class HTTPSeeOther(_HTTPMove):
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status_code = 303
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class HTTPNotModified(HTTPRedirection):
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# FIXME: this should include a date or etag header
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status_code = 304
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empty_body = True
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class HTTPUseProxy(_HTTPMove):
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# Not a move, but looks a little like one
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status_code = 305
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class HTTPTemporaryRedirect(_HTTPMove):
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status_code = 307
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class HTTPPermanentRedirect(_HTTPMove):
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status_code = 308
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############################################################
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# 4xx client error
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############################################################
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class HTTPClientError(HTTPError):
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pass
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class HTTPBadRequest(HTTPClientError):
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status_code = 400
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class HTTPUnauthorized(HTTPClientError):
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status_code = 401
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class HTTPPaymentRequired(HTTPClientError):
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status_code = 402
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class HTTPForbidden(HTTPClientError):
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status_code = 403
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class HTTPNotFound(HTTPClientError):
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status_code = 404
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class HTTPMethodNotAllowed(HTTPClientError):
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status_code = 405
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def __init__(self,
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method: str,
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allowed_methods: Iterable[str],
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*,
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headers: Optional[LooseHeaders]=None,
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reason: Optional[str]=None,
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body: Any=None,
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text: Optional[str]=None,
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content_type: Optional[str]=None) -> None:
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allow = ','.join(sorted(allowed_methods))
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super().__init__(headers=headers, reason=reason,
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body=body, text=text, content_type=content_type)
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self.headers['Allow'] = allow
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self.allowed_methods = set(allowed_methods) # type: Set[str]
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self.method = method.upper()
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class HTTPNotAcceptable(HTTPClientError):
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status_code = 406
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class HTTPProxyAuthenticationRequired(HTTPClientError):
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status_code = 407
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class HTTPRequestTimeout(HTTPClientError):
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status_code = 408
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class HTTPConflict(HTTPClientError):
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status_code = 409
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class HTTPGone(HTTPClientError):
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status_code = 410
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class HTTPLengthRequired(HTTPClientError):
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status_code = 411
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class HTTPPreconditionFailed(HTTPClientError):
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status_code = 412
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class HTTPRequestEntityTooLarge(HTTPClientError):
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status_code = 413
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def __init__(self,
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max_size: float,
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actual_size: float,
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**kwargs: Any) -> None:
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kwargs.setdefault(
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'text',
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'Maximum request body size {} exceeded, '
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'actual body size {}'.format(max_size, actual_size)
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)
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super().__init__(**kwargs)
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class HTTPRequestURITooLong(HTTPClientError):
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status_code = 414
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class HTTPUnsupportedMediaType(HTTPClientError):
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status_code = 415
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class HTTPRequestRangeNotSatisfiable(HTTPClientError):
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status_code = 416
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class HTTPExpectationFailed(HTTPClientError):
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status_code = 417
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class HTTPMisdirectedRequest(HTTPClientError):
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status_code = 421
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class HTTPUnprocessableEntity(HTTPClientError):
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status_code = 422
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class HTTPFailedDependency(HTTPClientError):
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status_code = 424
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class HTTPUpgradeRequired(HTTPClientError):
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status_code = 426
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class HTTPPreconditionRequired(HTTPClientError):
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status_code = 428
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class HTTPTooManyRequests(HTTPClientError):
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status_code = 429
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class HTTPRequestHeaderFieldsTooLarge(HTTPClientError):
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status_code = 431
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class HTTPUnavailableForLegalReasons(HTTPClientError):
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status_code = 451
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def __init__(self,
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link: str,
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*,
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headers: Optional[LooseHeaders]=None,
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reason: Optional[str]=None,
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body: Any=None,
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text: Optional[str]=None,
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content_type: Optional[str]=None) -> None:
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super().__init__(headers=headers, reason=reason,
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body=body, text=text, content_type=content_type)
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self.headers['Link'] = '<%s>; rel="blocked-by"' % link
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self.link = link
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############################################################
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# 5xx Server Error
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############################################################
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# Response status codes beginning with the digit "5" indicate cases in
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# which the server is aware that it has erred or is incapable of
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# performing the request. Except when responding to a HEAD request, the
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# server SHOULD include an entity containing an explanation of the error
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# situation, and whether it is a temporary or permanent condition. User
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# agents SHOULD display any included entity to the user. These response
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# codes are applicable to any request method.
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class HTTPServerError(HTTPError):
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pass
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class HTTPInternalServerError(HTTPServerError):
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status_code = 500
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class HTTPNotImplemented(HTTPServerError):
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status_code = 501
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class HTTPBadGateway(HTTPServerError):
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status_code = 502
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class HTTPServiceUnavailable(HTTPServerError):
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status_code = 503
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class HTTPGatewayTimeout(HTTPServerError):
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status_code = 504
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class HTTPVersionNotSupported(HTTPServerError):
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status_code = 505
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class HTTPVariantAlsoNegotiates(HTTPServerError):
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status_code = 506
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class HTTPInsufficientStorage(HTTPServerError):
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status_code = 507
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class HTTPNotExtended(HTTPServerError):
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status_code = 510
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class HTTPNetworkAuthenticationRequired(HTTPServerError):
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status_code = 511
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