Revert "(experimental) force to use custom dns"

This reverts commit 2a6a5e62d4.
2019-04-28 18:11:11 +02:00
parent 2a6a5e62d4
commit 1747bc98db
100 changed files with 2 additions and 15717 deletions
@@ -1,122 +0,0 @@
-# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
-
-# Copyright (C) 2001-2017 Nominum, Inc.
-#
-# Permission to use, copy, modify, and distribute this software and its
-# documentation for any purpose with or without fee is hereby granted,
-# provided that the above copyright notice and this permission notice
-# appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
-# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-"""DNS Rdata Classes."""
-
-import re
-
-import dns.exception
-
-RESERVED0 = 0
-IN = 1
-CH = 3
-HS = 4
-NONE = 254
-ANY = 255
-
-_by_text = {
-    'RESERVED0': RESERVED0,
-    'IN': IN,
-    'CH': CH,
-    'HS': HS,
-    'NONE': NONE,
-    'ANY': ANY
-}
-
-# We construct the inverse mapping programmatically to ensure that we
-# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
-# would cause the mapping not to be true inverse.
-
-_by_value = {y: x for x, y in _by_text.items()}
-
-# Now that we've built the inverse map, we can add class aliases to
-# the _by_text mapping.
-
-_by_text.update({
-    'INTERNET': IN,
-    'CHAOS': CH,
-    'HESIOD': HS
-})
-
-_metaclasses = {
-    NONE: True,
-    ANY: True
-}
-
-_unknown_class_pattern = re.compile('CLASS([0-9]+)$', re.I)
-
-
-class UnknownRdataclass(dns.exception.DNSException):
-    """A DNS class is unknown."""
-
-
-def from_text(text):
-    """Convert text into a DNS rdata class value.
-
-    The input text can be a defined DNS RR class mnemonic or
-    instance of the DNS generic class syntax.
-
-    For example, "IN" and "CLASS1" will both result in a value of 1.
-
-    Raises ``dns.rdatatype.UnknownRdataclass`` if the class is unknown.
-
-    Raises ``ValueError`` if the rdata class value is not >= 0 and <= 65535.
-
-    Returns an ``int``.
-    """
-
-    value = _by_text.get(text.upper())
-    if value is None:
-        match = _unknown_class_pattern.match(text)
-        if match is None:
-            raise UnknownRdataclass
-        value = int(match.group(1))
-        if value < 0 or value > 65535:
-            raise ValueError("class must be between >= 0 and <= 65535")
-    return value
-
-
-def to_text(value):
-    """Convert a DNS rdata type value to text.
-
-    If the value has a known mnemonic, it will be used, otherwise the
-    DNS generic class syntax will be used.
-
-    Raises ``ValueError`` if the rdata class value is not >= 0 and <= 65535.
-
-    Returns a ``str``.
-    """
-
-    if value < 0 or value > 65535:
-        raise ValueError("class must be between >= 0 and <= 65535")
-    text = _by_value.get(value)
-    if text is None:
-        text = 'CLASS' + repr(value)
-    return text
-
-
-def is_metaclass(rdclass):
-    """True if the specified class is a metaclass.
-
-    The currently defined metaclasses are ANY and NONE.
-
-    *rdclass* is an ``int``.
-    """
-
-    if rdclass in _metaclasses:
-        return True
-    return False