Загрузить файлы в «venv/Lib/site-packages/dns»

venv/Lib/site-packages/dns/exception.py

@@ -0,0 +1,169 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+# Copyright (C) 2003-2017 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.
+
+"""Common DNS Exceptions.
+
+Dnspython modules may also define their own exceptions, which will
+always be subclasses of ``DNSException``.
+"""
+
+
+from typing import Set
+
+
+class DNSException(Exception):
+    """Abstract base class shared by all dnspython exceptions.
+
+    It supports two basic modes of operation:
+
+    a) Old/compatible mode is used if ``__init__`` was called with
+    empty *kwargs*.  In compatible mode all *args* are passed
+    to the standard Python Exception class as before and all *args* are
+    printed by the standard ``__str__`` implementation.  Class variable
+    ``msg`` (or doc string if ``msg`` is ``None``) is returned from ``str()``
+    if *args* is empty.
+
+    b) New/parametrized mode is used if ``__init__`` was called with
+    non-empty *kwargs*.
+    In the new mode *args* must be empty and all kwargs must match
+    those set in class variable ``supp_kwargs``. All kwargs are stored inside
+    ``self.kwargs`` and used in a new ``__str__`` implementation to construct
+    a formatted message based on the ``fmt`` class variable, a ``string``.
+
+    In the simplest case it is enough to override the ``supp_kwargs``
+    and ``fmt`` class variables to get nice parametrized messages.
+    """
+
+    msg: str | None = None  # non-parametrized message
+    supp_kwargs: Set[str] = set()  # accepted parameters for _fmt_kwargs (sanity check)
+    fmt: str | None = None  # message parametrized with results from _fmt_kwargs
+
+    def __init__(self, *args, **kwargs):
+        self._check_params(*args, **kwargs)
+        if kwargs:
+            # This call to a virtual method from __init__ is ok in our usage
+            self.kwargs = self._check_kwargs(**kwargs)  # lgtm[py/init-calls-subclass]
+            self.msg = str(self)
+        else:
+            self.kwargs = dict()  # defined but empty for old mode exceptions
+        if self.msg is None:
+            # doc string is better implicit message than empty string
+            self.msg = self.__doc__
+        if args:
+            super().__init__(*args)
+        else:
+            super().__init__(self.msg)
+
+    def _check_params(self, *args, **kwargs):
+        """Old exceptions supported only args and not kwargs.
+
+        For sanity we do not allow to mix old and new behavior."""
+        if args or kwargs:
+            assert bool(args) != bool(
+                kwargs
+            ), "keyword arguments are mutually exclusive with positional args"
+
+    def _check_kwargs(self, **kwargs):
+        if kwargs:
+            assert (
+                set(kwargs.keys()) == self.supp_kwargs
+            ), f"following set of keyword args is required: {self.supp_kwargs}"
+        return kwargs
+
+    def _fmt_kwargs(self, **kwargs):
+        """Format kwargs before printing them.
+
+        Resulting dictionary has to have keys necessary for str.format call
+        on fmt class variable.
+        """
+        fmtargs = {}
+        for kw, data in kwargs.items():
+            if isinstance(data, list | set):
+                # convert list of <someobj> to list of str(<someobj>)
+                fmtargs[kw] = list(map(str, data))
+                if len(fmtargs[kw]) == 1:
+                    # remove list brackets [] from single-item lists
+                    fmtargs[kw] = fmtargs[kw].pop()
+            else:
+                fmtargs[kw] = data
+        return fmtargs
+
+    def __str__(self):
+        if self.kwargs and self.fmt:
+            # provide custom message constructed from keyword arguments
+            fmtargs = self._fmt_kwargs(**self.kwargs)
+            return self.fmt.format(**fmtargs)
+        else:
+            # print *args directly in the same way as old DNSException
+            return super().__str__()
+
+
+class FormError(DNSException):
+    """DNS message is malformed."""
+
+
+class SyntaxError(DNSException):
+    """Text input is malformed."""
+
+
+class UnexpectedEnd(SyntaxError):
+    """Text input ended unexpectedly."""
+
+
+class TooBig(DNSException):
+    """The DNS message is too big."""
+
+
+class Timeout(DNSException):
+    """The DNS operation timed out."""
+
+    supp_kwargs = {"timeout"}
+    fmt = "The DNS operation timed out after {timeout:.3f} seconds"
+
+    # We do this as otherwise mypy complains about unexpected keyword argument
+    # idna_exception
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+
+class UnsupportedAlgorithm(DNSException):
+    """The DNSSEC algorithm is not supported."""
+
+
+class AlgorithmKeyMismatch(UnsupportedAlgorithm):
+    """The DNSSEC algorithm is not supported for the given key type."""
+
+
+class ValidationFailure(DNSException):
+    """The DNSSEC signature is invalid."""
+
+
+class DeniedByPolicy(DNSException):
+    """Denied by DNSSEC policy."""
+
+
+class ExceptionWrapper:
+    def __init__(self, exception_class):
+        self.exception_class = exception_class
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        if exc_type is not None and not isinstance(exc_val, self.exception_class):
+            raise self.exception_class(str(exc_val)) from exc_val
+        return False

venv/Lib/site-packages/dns/flags.py

@@ -0,0 +1,123 @@
+# 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 Message Flags."""
+
+import enum
+from typing import Any
+
+# Standard DNS flags
+
+
+class Flag(enum.IntFlag):
+    #: Query Response
+    QR = 0x8000
+    #: Authoritative Answer
+    AA = 0x0400
+    #: Truncated Response
+    TC = 0x0200
+    #: Recursion Desired
+    RD = 0x0100
+    #: Recursion Available
+    RA = 0x0080
+    #: Authentic Data
+    AD = 0x0020
+    #: Checking Disabled
+    CD = 0x0010
+
+
+# EDNS flags
+
+
+class EDNSFlag(enum.IntFlag):
+    #: DNSSEC answer OK
+    DO = 0x8000
+
+
+def _from_text(text: str, enum_class: Any) -> int:
+    flags = 0
+    tokens = text.split()
+    for t in tokens:
+        flags |= enum_class[t.upper()]
+    return flags
+
+
+def _to_text(flags: int, enum_class: Any) -> str:
+    text_flags = []
+    for k, v in enum_class.__members__.items():
+        if flags & v != 0:
+            text_flags.append(k)
+    return " ".join(text_flags)
+
+
+def from_text(text: str) -> int:
+    """Convert a space-separated list of flag text values into a flags
+    value.
+
+    Returns an ``int``
+    """
+
+    return _from_text(text, Flag)
+
+
+def to_text(flags: int) -> str:
+    """Convert a flags value into a space-separated list of flag text
+    values.
+
+    Returns a ``str``.
+    """
+
+    return _to_text(flags, Flag)
+
+
+def edns_from_text(text: str) -> int:
+    """Convert a space-separated list of EDNS flag text values into a EDNS
+    flags value.
+
+    Returns an ``int``
+    """
+
+    return _from_text(text, EDNSFlag)
+
+
+def edns_to_text(flags: int) -> str:
+    """Convert an EDNS flags value into a space-separated list of EDNS flag
+    text values.
+
+    Returns a ``str``.
+    """
+
+    return _to_text(flags, EDNSFlag)
+
+
+### BEGIN generated Flag constants
+
+QR = Flag.QR
+AA = Flag.AA
+TC = Flag.TC
+RD = Flag.RD
+RA = Flag.RA
+AD = Flag.AD
+CD = Flag.CD
+
+### END generated Flag constants
+
+### BEGIN generated EDNSFlag constants
+
+DO = EDNSFlag.DO
+
+### END generated EDNSFlag constants

venv/Lib/site-packages/dns/grange.py

@@ -0,0 +1,72 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+# Copyright (C) 2012-2017 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 GENERATE range conversion."""
+
+from typing import Tuple
+
+import dns.exception
+
+
+def from_text(text: str) -> Tuple[int, int, int]:
+    """Convert the text form of a range in a ``$GENERATE`` statement to an
+    integer.
+
+    *text*, a ``str``, the textual range in ``$GENERATE`` form.
+
+    Returns a tuple of three ``int`` values ``(start, stop, step)``.
+    """
+
+    start = -1
+    stop = -1
+    step = 1
+    cur = ""
+    state = 0
+    # state   0   1   2
+    #         x - y / z
+
+    if text and text[0] == "-":
+        raise dns.exception.SyntaxError("Start cannot be a negative number")
+
+    for c in text:
+        if c == "-" and state == 0:
+            start = int(cur)
+            cur = ""
+            state = 1
+        elif c == "/":
+            stop = int(cur)
+            cur = ""
+            state = 2
+        elif c.isdigit():
+            cur += c
+        else:
+            raise dns.exception.SyntaxError(f"Could not parse {c}")
+
+    if state == 0:
+        raise dns.exception.SyntaxError("no stop value specified")
+    elif state == 1:
+        stop = int(cur)
+    else:
+        assert state == 2
+        step = int(cur)
+
+    assert step >= 1
+    assert start >= 0
+    if start > stop:
+        raise dns.exception.SyntaxError("start must be <= stop")
+
+    return (start, stop, step)

venv/Lib/site-packages/dns/immutable.py

@@ -0,0 +1,68 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+import collections.abc
+from typing import Any, Callable
+
+from dns._immutable_ctx import immutable
+
+
+@immutable
+class Dict(collections.abc.Mapping):  # lgtm[py/missing-equals]
+    def __init__(
+        self,
+        dictionary: Any,
+        no_copy: bool = False,
+        map_factory: Callable[[], collections.abc.MutableMapping] = dict,
+    ):
+        """Make an immutable dictionary from the specified dictionary.
+
+        If *no_copy* is `True`, then *dictionary* will be wrapped instead
+        of copied.  Only set this if you are sure there will be no external
+        references to the dictionary.
+        """
+        if no_copy and isinstance(dictionary, collections.abc.MutableMapping):
+            self._odict = dictionary
+        else:
+            self._odict = map_factory()
+            self._odict.update(dictionary)
+        self._hash = None
+
+    def __getitem__(self, key):
+        return self._odict.__getitem__(key)
+
+    def __hash__(self):  # pylint: disable=invalid-hash-returned
+        if self._hash is None:
+            h = 0
+            for key in sorted(self._odict.keys()):
+                h ^= hash(key)
+            object.__setattr__(self, "_hash", h)
+        # this does return an int, but pylint doesn't figure that out
+        return self._hash
+
+    def __len__(self):
+        return len(self._odict)
+
+    def __iter__(self):
+        return iter(self._odict)
+
+
+def constify(o: Any) -> Any:
+    """
+    Convert mutable types to immutable types.
+    """
+    if isinstance(o, bytearray):
+        return bytes(o)
+    if isinstance(o, tuple):
+        try:
+            hash(o)
+            return o
+        except Exception:
+            return tuple(constify(elt) for elt in o)
+    if isinstance(o, list):
+        return tuple(constify(elt) for elt in o)
+    if isinstance(o, dict):
+        cdict = dict()
+        for k, v in o.items():
+            cdict[k] = constify(v)
+        return Dict(cdict, True)
+    return o

venv/Lib/site-packages/dns/inet.py

@@ -0,0 +1,195 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+# Copyright (C) 2003-2017 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.
+
+"""Generic Internet address helper functions."""
+
+import socket
+from typing import Any, Tuple
+
+import dns.ipv4
+import dns.ipv6
+
+# We assume that AF_INET and AF_INET6 are always defined.  We keep
+# these here for the benefit of any old code (unlikely though that
+# is!).
+AF_INET = socket.AF_INET
+AF_INET6 = socket.AF_INET6
+
+
+def inet_pton(family: int, text: str) -> bytes:
+    """Convert the textual form of a network address into its binary form.
+
+    *family* is an ``int``, the address family.
+
+    *text* is a ``str``, the textual address.
+
+    Raises ``NotImplementedError`` if the address family specified is not
+    implemented.
+
+    Returns a ``bytes``.
+    """
+
+    if family == AF_INET:
+        return dns.ipv4.inet_aton(text)
+    elif family == AF_INET6:
+        return dns.ipv6.inet_aton(text, True)
+    else:
+        raise NotImplementedError
+
+
+def inet_ntop(family: int, address: bytes) -> str:
+    """Convert the binary form of a network address into its textual form.
+
+    *family* is an ``int``, the address family.
+
+    *address* is a ``bytes``, the network address in binary form.
+
+    Raises ``NotImplementedError`` if the address family specified is not
+    implemented.
+
+    Returns a ``str``.
+    """
+
+    if family == AF_INET:
+        return dns.ipv4.inet_ntoa(address)
+    elif family == AF_INET6:
+        return dns.ipv6.inet_ntoa(address)
+    else:
+        raise NotImplementedError
+
+
+def af_for_address(text: str) -> int:
+    """Determine the address family of a textual-form network address.
+
+    *text*, a ``str``, the textual address.
+
+    Raises ``ValueError`` if the address family cannot be determined
+    from the input.
+
+    Returns an ``int``.
+    """
+
+    try:
+        dns.ipv4.inet_aton(text)
+        return AF_INET
+    except Exception:
+        try:
+            dns.ipv6.inet_aton(text, True)
+            return AF_INET6
+        except Exception:
+            raise ValueError
+
+
+def is_multicast(text: str) -> bool:
+    """Is the textual-form network address a multicast address?
+
+    *text*, a ``str``, the textual address.
+
+    Raises ``ValueError`` if the address family cannot be determined
+    from the input.
+
+    Returns a ``bool``.
+    """
+
+    try:
+        first = dns.ipv4.inet_aton(text)[0]
+        return first >= 224 and first <= 239
+    except Exception:
+        try:
+            first = dns.ipv6.inet_aton(text, True)[0]
+            return first == 255
+        except Exception:
+            raise ValueError
+
+
+def is_address(text: str) -> bool:
+    """Is the specified string an IPv4 or IPv6 address?
+
+    *text*, a ``str``, the textual address.
+
+    Returns a ``bool``.
+    """
+
+    try:
+        dns.ipv4.inet_aton(text)
+        return True
+    except Exception:
+        try:
+            dns.ipv6.inet_aton(text, True)
+            return True
+        except Exception:
+            return False
+
+
+def low_level_address_tuple(high_tuple: Tuple[str, int], af: int | None = None) -> Any:
+    """Given a "high-level" address tuple, i.e.
+    an (address, port) return the appropriate "low-level" address tuple
+    suitable for use in socket calls.
+
+    If an *af* other than ``None`` is provided, it is assumed the
+    address in the high-level tuple is valid and has that af.  If af
+    is ``None``, then af_for_address will be called.
+    """
+    address, port = high_tuple
+    if af is None:
+        af = af_for_address(address)
+    if af == AF_INET:
+        return (address, port)
+    elif af == AF_INET6:
+        i = address.find("%")
+        if i < 0:
+            # no scope, shortcut!
+            return (address, port, 0, 0)
+        # try to avoid getaddrinfo()
+        addrpart = address[:i]
+        scope = address[i + 1 :]
+        if scope.isdigit():
+            return (addrpart, port, 0, int(scope))
+        try:
+            return (addrpart, port, 0, socket.if_nametoindex(scope))
+        except AttributeError:  # pragma: no cover  (we can't really test this)
+            ai_flags = socket.AI_NUMERICHOST
+            ((*_, tup), *_) = socket.getaddrinfo(address, port, flags=ai_flags)
+            return tup
+    else:
+        raise NotImplementedError(f"unknown address family {af}")
+
+
+def any_for_af(af):
+    """Return the 'any' address for the specified address family."""
+    if af == socket.AF_INET:
+        return "0.0.0.0"
+    elif af == socket.AF_INET6:
+        return "::"
+    raise NotImplementedError(f"unknown address family {af}")
+
+
+def canonicalize(text: str) -> str:
+    """Verify that *address* is a valid text form IPv4 or IPv6 address and return its
+    canonical text form.  IPv6 addresses with scopes are rejected.
+
+    *text*, a ``str``, the address in textual form.
+
+    Raises ``ValueError`` if the text is not valid.
+    """
+    try:
+        return dns.ipv6.canonicalize(text)
+    except Exception:
+        try:
+            return dns.ipv4.canonicalize(text)
+        except Exception:
+            raise ValueError