1 files changed, 132 insertions, 0 deletions
diff --git a/third_party/dnspython/dns/rdtypes/IN/NAPTR.py b/third_party/dnspython/dns/rdtypes/IN/NAPTR.py
new file mode 100644
index 0000000000..7fe043082b
--- /dev/null
+++ b/third_party/dnspython/dns/rdtypes/IN/NAPTR.py
@@ -0,0 +1,132 @@
+# 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.name
+import dns.rdata
+
+def _write_string(file, s):
+    l = len(s)
+    assert l < 256
+    byte = chr(l)
+    file.write(byte)
+    file.write(s)
+
+class NAPTR(dns.rdata.Rdata):
+    """NAPTR record
+
+    @ivar order: order
+    @type order: int
+    @ivar preference: preference
+    @type preference: int
+    @ivar flags: flags
+    @type flags: string
+    @ivar service: service
+    @type service: string
+    @ivar regexp: regular expression
+    @type regexp: string
+    @ivar replacement: replacement name
+    @type replacement: dns.name.Name object
+    @see: RFC 3403"""
+
+    __slots__ = ['order', 'preference', 'flags', 'service', 'regexp',
+                 'replacement']
+
+    def __init__(self, rdclass, rdtype, order, preference, flags, service,
+                 regexp, replacement):
+        super(NAPTR, self).__init__(rdclass, rdtype)
+        self.order = order
+        self.preference = preference
+        self.flags = flags
+        self.service = service
+        self.regexp = regexp
+        self.replacement = replacement
+
+    def to_text(self, origin=None, relativize=True, **kw):
+        replacement = self.replacement.choose_relativity(origin, relativize)
+        return '%d %d "%s" "%s" "%s" %s' % \
+               (self.order, self.preference,
+                dns.rdata._escapify(self.flags),
+                dns.rdata._escapify(self.service),
+                dns.rdata._escapify(self.regexp),
+                self.replacement)
+
+    def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+        order = tok.get_uint16()
+        preference = tok.get_uint16()
+        flags = tok.get_string()
+        service = tok.get_string()
+        regexp = tok.get_string()
+        replacement = tok.get_name()
+        replacement = replacement.choose_relativity(origin, relativize)
+        tok.get_eol()
+        return cls(rdclass, rdtype, order, preference, flags, service,
+                   regexp, replacement)
+
+    from_text = classmethod(from_text)
+
+    def to_wire(self, file, compress = None, origin = None):
+        two_ints = struct.pack("!HH", self.order, self.preference)
+        file.write(two_ints)
+        _write_string(file, self.flags)
+        _write_string(file, self.service)
+        _write_string(file, self.regexp)
+        self.replacement.to_wire(file, compress, origin)
+
+    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+        (order, preference) = struct.unpack('!HH', wire[current : current + 4])
+        current += 4
+        rdlen -= 4
+        strings = []
+        for i in xrange(3):
+            l = ord(wire[current])
+            current += 1
+            rdlen -= 1
+            if l > rdlen or rdlen < 0:
+                raise dns.exception.FormError
+            s = wire[current : current + l].unwrap()
+            current += l
+            rdlen -= l
+            strings.append(s)
+        (replacement, cused) = dns.name.from_wire(wire[: current + rdlen],
+                                                  current)
+        if cused != rdlen:
+            raise dns.exception.FormError
+        if not origin is None:
+            replacement = replacement.relativize(origin)
+        return cls(rdclass, rdtype, order, preference, strings[0], strings[1],
+                   strings[2], replacement)
+
+    from_wire = classmethod(from_wire)
+
+    def choose_relativity(self, origin = None, relativize = True):
+        self.replacement = self.replacement.choose_relativity(origin,
+                                                              relativize)
+
+    def _cmp(self, other):
+        sp = struct.pack("!HH", self.order, self.preference)
+        op = struct.pack("!HH", other.order, other.preference)
+        v = cmp(sp, op)
+        if v == 0:
+            v = cmp(self.flags, other.flags)
+            if v == 0:
+                v = cmp(self.service, other.service)
+                if v == 0:
+                    v = cmp(self.regexp, other.regexp)
+                    if v == 0:
+                        v = cmp(self.replacement, other.replacement)
+        return v