Updated script that can be controled by Nodejs web app

lib/python3.13/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