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1 # -*- test-case-name: twisted.names.test -*- | |
2 # Copyright (c) 2001-2004 Twisted Matrix Laboratories. | |
3 # See LICENSE for details. | |
4 | |
5 """ | |
6 Exception class definitions for Twisted Names. | |
7 """ | |
8 | |
9 from twisted.internet.defer import TimeoutError | |
10 | |
11 | |
12 class DomainError(ValueError): | |
13 """ | |
14 Indicates a lookup failed because there were no records matching the given | |
15 C{name, class, type} triple. | |
16 """ | |
17 | |
18 | |
19 | |
20 class AuthoritativeDomainError(ValueError): | |
21 """ | |
22 Indicates a lookup failed for a name for which this server is authoritative | |
23 because there were no records matching the given C{name, class, type} | |
24 triple. | |
25 """ | |
26 | |
27 | |
28 | |
29 class DNSQueryTimeoutError(TimeoutError): | |
30 """ | |
31 Indicates a lookup failed due to a timeout. | |
32 | |
33 @ivar id: The id of the message which timed out. | |
34 """ | |
35 def __init__(self, id): | |
36 TimeoutError.__init__(self) | |
37 self.id = id | |
38 | |
39 | |
40 | |
41 class DNSFormatError(DomainError): | |
42 """ | |
43 Indicates a query failed with a result of L{twisted.names.dns.EFORMAT}. | |
44 """ | |
45 | |
46 | |
47 | |
48 class DNSServerError(DomainError): | |
49 """ | |
50 Indicates a query failed with a result of L{twisted.names.dns.ESERVER}. | |
51 """ | |
52 | |
53 | |
54 | |
55 class DNSNameError(DomainError): | |
56 """ | |
57 Indicates a query failed with a result of L{twisted.names.dns.ENAME}. | |
58 """ | |
59 | |
60 | |
61 | |
62 class DNSNotImplementedError(DomainError): | |
63 """ | |
64 Indicates a query failed with a result of L{twisted.names.dns.ENOTIMP}. | |
65 """ | |
66 | |
67 | |
68 | |
69 class DNSQueryRefusedError(DomainError): | |
70 """ | |
71 Indicates a query failed with a result of L{twisted.names.dns.EREFUSED}. | |
72 """ | |
73 | |
74 | |
75 | |
76 class DNSUnknownError(DomainError): | |
77 """ | |
78 Indicates a query failed with an unknown result. | |
79 """ | |
80 | |
81 | |
82 | |
83 __all__ = [ | |
84 'DomainError', 'AuthoritativeDomainError', 'DNSQueryTimeoutError', | |
85 | |
86 'DNSFormatError', 'DNSServerError', 'DNSNameError', | |
87 'DNSNotImplementedError', 'DNSQueryRefusedError', | |
88 'DNSUnknownError'] | |
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