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Diffstat (limited to '.venv/lib/python3.12/site-packages/urllib3/exceptions.py')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/urllib3/exceptions.py | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/urllib3/exceptions.py b/.venv/lib/python3.12/site-packages/urllib3/exceptions.py new file mode 100644 index 00000000..03945782 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/urllib3/exceptions.py @@ -0,0 +1,327 @@ +from __future__ import annotations + +import socket +import typing +import warnings +from email.errors import MessageDefect +from http.client import IncompleteRead as httplib_IncompleteRead + +if typing.TYPE_CHECKING: + from .connection import HTTPConnection + from .connectionpool import ConnectionPool + from .response import HTTPResponse + from .util.retry import Retry + +# Base Exceptions + + +class HTTPError(Exception): + """Base exception used by this module.""" + + +class HTTPWarning(Warning): + """Base warning used by this module.""" + + +_TYPE_REDUCE_RESULT = tuple[typing.Callable[..., object], tuple[object, ...]] + + +class PoolError(HTTPError): + """Base exception for errors caused within a pool.""" + + def __init__(self, pool: ConnectionPool, message: str) -> None: + self.pool = pool + super().__init__(f"{pool}: {message}") + + def __reduce__(self) -> _TYPE_REDUCE_RESULT: + # For pickling purposes. + return self.__class__, (None, None) + + +class RequestError(PoolError): + """Base exception for PoolErrors that have associated URLs.""" + + def __init__(self, pool: ConnectionPool, url: str, message: str) -> None: + self.url = url + super().__init__(pool, message) + + def __reduce__(self) -> _TYPE_REDUCE_RESULT: + # For pickling purposes. + return self.__class__, (None, self.url, None) + + +class SSLError(HTTPError): + """Raised when SSL certificate fails in an HTTPS connection.""" + + +class ProxyError(HTTPError): + """Raised when the connection to a proxy fails.""" + + # The original error is also available as __cause__. + original_error: Exception + + def __init__(self, message: str, error: Exception) -> None: + super().__init__(message, error) + self.original_error = error + + +class DecodeError(HTTPError): + """Raised when automatic decoding based on Content-Type fails.""" + + +class ProtocolError(HTTPError): + """Raised when something unexpected happens mid-request/response.""" + + +#: Renamed to ProtocolError but aliased for backwards compatibility. +ConnectionError = ProtocolError + + +# Leaf Exceptions + + +class MaxRetryError(RequestError): + """Raised when the maximum number of retries is exceeded. + + :param pool: The connection pool + :type pool: :class:`~urllib3.connectionpool.HTTPConnectionPool` + :param str url: The requested Url + :param reason: The underlying error + :type reason: :class:`Exception` + + """ + + def __init__( + self, pool: ConnectionPool, url: str, reason: Exception | None = None + ) -> None: + self.reason = reason + + message = f"Max retries exceeded with url: {url} (Caused by {reason!r})" + + super().__init__(pool, url, message) + + +class HostChangedError(RequestError): + """Raised when an existing pool gets a request for a foreign host.""" + + def __init__( + self, pool: ConnectionPool, url: str, retries: Retry | int = 3 + ) -> None: + message = f"Tried to open a foreign host with url: {url}" + super().__init__(pool, url, message) + self.retries = retries + + +class TimeoutStateError(HTTPError): + """Raised when passing an invalid state to a timeout""" + + +class TimeoutError(HTTPError): + """Raised when a socket timeout error occurs. + + Catching this error will catch both :exc:`ReadTimeoutErrors + <ReadTimeoutError>` and :exc:`ConnectTimeoutErrors <ConnectTimeoutError>`. + """ + + +class ReadTimeoutError(TimeoutError, RequestError): + """Raised when a socket timeout occurs while receiving data from a server""" + + +# This timeout error does not have a URL attached and needs to inherit from the +# base HTTPError +class ConnectTimeoutError(TimeoutError): + """Raised when a socket timeout occurs while connecting to a server""" + + +class NewConnectionError(ConnectTimeoutError, HTTPError): + """Raised when we fail to establish a new connection. Usually ECONNREFUSED.""" + + def __init__(self, conn: HTTPConnection, message: str) -> None: + self.conn = conn + super().__init__(f"{conn}: {message}") + + def __reduce__(self) -> _TYPE_REDUCE_RESULT: + # For pickling purposes. + return self.__class__, (None, None) + + @property + def pool(self) -> HTTPConnection: + warnings.warn( + "The 'pool' property is deprecated and will be removed " + "in urllib3 v2.1.0. Use 'conn' instead.", + DeprecationWarning, + stacklevel=2, + ) + + return self.conn + + +class NameResolutionError(NewConnectionError): + """Raised when host name resolution fails.""" + + def __init__(self, host: str, conn: HTTPConnection, reason: socket.gaierror): + message = f"Failed to resolve '{host}' ({reason})" + super().__init__(conn, message) + + def __reduce__(self) -> _TYPE_REDUCE_RESULT: + # For pickling purposes. + return self.__class__, (None, None, None) + + +class EmptyPoolError(PoolError): + """Raised when a pool runs out of connections and no more are allowed.""" + + +class FullPoolError(PoolError): + """Raised when we try to add a connection to a full pool in blocking mode.""" + + +class ClosedPoolError(PoolError): + """Raised when a request enters a pool after the pool has been closed.""" + + +class LocationValueError(ValueError, HTTPError): + """Raised when there is something wrong with a given URL input.""" + + +class LocationParseError(LocationValueError): + """Raised when get_host or similar fails to parse the URL input.""" + + def __init__(self, location: str) -> None: + message = f"Failed to parse: {location}" + super().__init__(message) + + self.location = location + + +class URLSchemeUnknown(LocationValueError): + """Raised when a URL input has an unsupported scheme.""" + + def __init__(self, scheme: str): + message = f"Not supported URL scheme {scheme}" + super().__init__(message) + + self.scheme = scheme + + +class ResponseError(HTTPError): + """Used as a container for an error reason supplied in a MaxRetryError.""" + + GENERIC_ERROR = "too many error responses" + SPECIFIC_ERROR = "too many {status_code} error responses" + + +class SecurityWarning(HTTPWarning): + """Warned when performing security reducing actions""" + + +class InsecureRequestWarning(SecurityWarning): + """Warned when making an unverified HTTPS request.""" + + +class NotOpenSSLWarning(SecurityWarning): + """Warned when using unsupported SSL library""" + + +class SystemTimeWarning(SecurityWarning): + """Warned when system time is suspected to be wrong""" + + +class InsecurePlatformWarning(SecurityWarning): + """Warned when certain TLS/SSL configuration is not available on a platform.""" + + +class DependencyWarning(HTTPWarning): + """ + Warned when an attempt is made to import a module with missing optional + dependencies. + """ + + +class ResponseNotChunked(ProtocolError, ValueError): + """Response needs to be chunked in order to read it as chunks.""" + + +class BodyNotHttplibCompatible(HTTPError): + """ + Body should be :class:`http.client.HTTPResponse` like + (have an fp attribute which returns raw chunks) for read_chunked(). + """ + + +class IncompleteRead(HTTPError, httplib_IncompleteRead): + """ + Response length doesn't match expected Content-Length + + Subclass of :class:`http.client.IncompleteRead` to allow int value + for ``partial`` to avoid creating large objects on streamed reads. + """ + + partial: int # type: ignore[assignment] + expected: int + + def __init__(self, partial: int, expected: int) -> None: + self.partial = partial + self.expected = expected + + def __repr__(self) -> str: + return "IncompleteRead(%i bytes read, %i more expected)" % ( + self.partial, + self.expected, + ) + + +class InvalidChunkLength(HTTPError, httplib_IncompleteRead): + """Invalid chunk length in a chunked response.""" + + def __init__(self, response: HTTPResponse, length: bytes) -> None: + self.partial: int = response.tell() # type: ignore[assignment] + self.expected: int | None = response.length_remaining + self.response = response + self.length = length + + def __repr__(self) -> str: + return "InvalidChunkLength(got length %r, %i bytes read)" % ( + self.length, + self.partial, + ) + + +class InvalidHeader(HTTPError): + """The header provided was somehow invalid.""" + + +class ProxySchemeUnknown(AssertionError, URLSchemeUnknown): + """ProxyManager does not support the supplied scheme""" + + # TODO(t-8ch): Stop inheriting from AssertionError in v2.0. + + def __init__(self, scheme: str | None) -> None: + # 'localhost' is here because our URL parser parses + # localhost:8080 -> scheme=localhost, remove if we fix this. + if scheme == "localhost": + scheme = None + if scheme is None: + message = "Proxy URL had no scheme, should start with http:// or https://" + else: + message = f"Proxy URL had unsupported scheme {scheme}, should use http:// or https://" + super().__init__(message) + + +class ProxySchemeUnsupported(ValueError): + """Fetching HTTPS resources through HTTPS proxies is unsupported""" + + +class HeaderParsingError(HTTPError): + """Raised by assert_header_parsing, but we convert it to a log.warning statement.""" + + def __init__( + self, defects: list[MessageDefect], unparsed_data: bytes | str | None + ) -> None: + message = f"{defects or 'Unknown'}, unparsed data: {unparsed_data!r}" + super().__init__(message) + + +class UnrewindableBodyError(HTTPError): + """urllib3 encountered an error when trying to rewind a body""" |