Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/dns/rdtypes/IN/SRV.py

@@ -0,0 +1,75 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+# Copyright (C) 2003-2007, 2009-2011 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.
+
+import struct
+
+import dns.exception
+import dns.immutable
+import dns.name
+import dns.rdata
+import dns.rdtypes.util
+
+
+@dns.immutable.immutable
+class SRV(dns.rdata.Rdata):
+    """SRV record"""
+
+    # see: RFC 2782
+
+    __slots__ = ["priority", "weight", "port", "target"]
+
+    def __init__(self, rdclass, rdtype, priority, weight, port, target):
+        super().__init__(rdclass, rdtype)
+        self.priority = self._as_uint16(priority)
+        self.weight = self._as_uint16(weight)
+        self.port = self._as_uint16(port)
+        self.target = self._as_name(target)
+
+    def to_text(self, origin=None, relativize=True, **kw):
+        target = self.target.choose_relativity(origin, relativize)
+        return "%d %d %d %s" % (self.priority, self.weight, self.port, target)
+
+    @classmethod
+    def from_text(
+        cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
+    ):
+        priority = tok.get_uint16()
+        weight = tok.get_uint16()
+        port = tok.get_uint16()
+        target = tok.get_name(origin, relativize, relativize_to)
+        return cls(rdclass, rdtype, priority, weight, port, target)
+
+    def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
+        three_ints = struct.pack("!HHH", self.priority, self.weight, self.port)
+        file.write(three_ints)
+        self.target.to_wire(file, compress, origin, canonicalize)
+
+    @classmethod
+    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
+        (priority, weight, port) = parser.get_struct("!HHH")
+        target = parser.get_name(origin)
+        return cls(rdclass, rdtype, priority, weight, port, target)
+
+    def _processing_priority(self):
+        return self.priority
+
+    def _processing_weight(self):
+        return self.weight
+
+    @classmethod
+    def _processing_order(cls, iterable):
+        return dns.rdtypes.util.weighted_processing_order(iterable)