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# -*- test-case-name: twisted.names.test -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Exception class definitions for Twisted Names.
"""
from __future__ import division, absolute_import
from twisted.internet.defer import TimeoutError
class DomainError(ValueError):
"""
Indicates a lookup failed because there were no records matching the given
C{name, class, type} triple.
"""
class AuthoritativeDomainError(ValueError):
"""
Indicates a lookup failed for a name for which this server is authoritative
because there were no records matching the given C{name, class, type}
triple.
"""
class DNSQueryTimeoutError(TimeoutError):
"""
Indicates a lookup failed due to a timeout.
@ivar id: The id of the message which timed out.
"""
def __init__(self, id):
TimeoutError.__init__(self)
self.id = id
class DNSFormatError(DomainError):
"""
Indicates a query failed with a result of C{twisted.names.dns.EFORMAT}.
"""
class DNSServerError(DomainError):
"""
Indicates a query failed with a result of C{twisted.names.dns.ESERVER}.
"""
class DNSNameError(DomainError):
"""
Indicates a query failed with a result of C{twisted.names.dns.ENAME}.
"""
class DNSNotImplementedError(DomainError):
"""
Indicates a query failed with a result of C{twisted.names.dns.ENOTIMP}.
"""
class DNSQueryRefusedError(DomainError):
"""
Indicates a query failed with a result of C{twisted.names.dns.EREFUSED}.
"""
class DNSUnknownError(DomainError):
"""
Indicates a query failed with an unknown result.
"""
class ResolverError(Exception):
"""
Indicates a query failed because of a decision made by the local
resolver object.
"""
__all__ = [
'DomainError', 'AuthoritativeDomainError', 'DNSQueryTimeoutError',
'DNSFormatError', 'DNSServerError', 'DNSNameError',
'DNSNotImplementedError', 'DNSQueryRefusedError',
'DNSUnknownError', 'ResolverError']
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