Check in the thirdparty libs needed for webkitpy.

Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/dns/rdtypes/ANY/NSEC3.py

Index: Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/dns/rdtypes/ANY/NSEC3.py
diff --git a/Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/dns/rdtypes/ANY/NSEC3.py b/Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/dns/rdtypes/ANY/NSEC3.py
new file mode 100644
index 0000000000000000000000000000000000000000..932d7b40327553a83e5f8c971f6558a4b94d8a11
--- /dev/null
+++ b/Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/dns/rdtypes/ANY/NSEC3.py
@@ -0,0 +1,182 @@
+# Copyright (C) 2004-2007, 2009, 2010 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 base64
+import cStringIO
+import string
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.rdatatype
+
+b32_hex_to_normal = string.maketrans('0123456789ABCDEFGHIJKLMNOPQRSTUV',
+                                     'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567')
+b32_normal_to_hex = string.maketrans('ABCDEFGHIJKLMNOPQRSTUVWXYZ234567',
+                                     '0123456789ABCDEFGHIJKLMNOPQRSTUV')
+
+# hash algorithm constants
+SHA1 = 1
+
+# flag constants
+OPTOUT = 1
+
+class NSEC3(dns.rdata.Rdata):
+    """NSEC3 record
+
+    @ivar algorithm: the hash algorithm number
+    @type algorithm: int
+    @ivar flags: the flags
+    @type flags: int
+    @ivar iterations: the number of iterations
+    @type iterations: int
+    @ivar salt: the salt
+    @type salt: string
+    @ivar next: the next name hash
+    @type next: string
+    @ivar windows: the windowed bitmap list
+    @type windows: list of (window number, string) tuples"""
+
+    __slots__ = ['algorithm', 'flags', 'iterations', 'salt', 'next', 'windows']
+
+    def __init__(self, rdclass, rdtype, algorithm, flags, iterations, salt,
+                 next, windows):
+        super(NSEC3, self).__init__(rdclass, rdtype)
+        self.algorithm = algorithm
+        self.flags = flags
+        self.iterations = iterations
+        self.salt = salt
+        self.next = next
+        self.windows = windows
+
+    def to_text(self, origin=None, relativize=True, **kw):
+        next = base64.b32encode(self.next).translate(b32_normal_to_hex).lower()
+        if self.salt == '':
+            salt = '-'
+        else:
+            salt = self.salt.encode('hex-codec')
+        text = ''
+        for (window, bitmap) in self.windows:
+            bits = []
+            for i in xrange(0, len(bitmap)):
+                byte = ord(bitmap[i])
+                for j in xrange(0, 8):
+                    if byte & (0x80 >> j):
+                        bits.append(dns.rdatatype.to_text(window * 256 + \
+                                                          i * 8 + j))
+            text += (' ' + ' '.join(bits))
+        return '%u %u %u %s %s%s' % (self.algorithm, self.flags, self.iterations,
+                                     salt, next, text)
+
+    def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+        algorithm = tok.get_uint8()
+        flags = tok.get_uint8()
+        iterations = tok.get_uint16()
+        salt = tok.get_string()
+        if salt == '-':
+            salt = ''
+        else:
+            salt = salt.decode('hex-codec')
+        next = tok.get_string().upper().translate(b32_hex_to_normal)
+        next = base64.b32decode(next)
+        rdtypes = []
+        while 1:
+            token = tok.get().unescape()
+            if token.is_eol_or_eof():
+                break
+            nrdtype = dns.rdatatype.from_text(token.value)
+            if nrdtype == 0:
+                raise dns.exception.SyntaxError("NSEC3 with bit 0")
+            if nrdtype > 65535:
+                raise dns.exception.SyntaxError("NSEC3 with bit > 65535")
+            rdtypes.append(nrdtype)
+        rdtypes.sort()
+        window = 0
+        octets = 0
+        prior_rdtype = 0
+        bitmap = ['\0'] * 32
+        windows = []
+        for nrdtype in rdtypes:
+            if nrdtype == prior_rdtype:
+                continue
+            prior_rdtype = nrdtype
+            new_window = nrdtype // 256
+            if new_window != window:
+                windows.append((window, ''.join(bitmap[0:octets])))
+                bitmap = ['\0'] * 32
+                window = new_window
+            offset = nrdtype % 256
+            byte = offset / 8
+            bit = offset % 8
+            octets = byte + 1
+            bitmap[byte] = chr(ord(bitmap[byte]) | (0x80 >> bit))
+        windows.append((window, ''.join(bitmap[0:octets])))
+        return cls(rdclass, rdtype, algorithm, flags, iterations, salt, next, windows)
+
+    from_text = classmethod(from_text)
+
+    def to_wire(self, file, compress = None, origin = None):
+        l = len(self.salt)
+        file.write(struct.pack("!BBHB", self.algorithm, self.flags,
+                               self.iterations, l))
+        file.write(self.salt)
+        l = len(self.next)
+        file.write(struct.pack("!B", l))
+        file.write(self.next)
+        for (window, bitmap) in self.windows:
+            file.write(chr(window))
+            file.write(chr(len(bitmap)))
+            file.write(bitmap)
+
+    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+        (algorithm, flags, iterations, slen) = struct.unpack('!BBHB',
+                                                             wire[current : current + 5])
+        current += 5
+        rdlen -= 5
+        salt = wire[current : current + slen]
+        current += slen
+        rdlen -= slen
+        (nlen, ) = struct.unpack('!B', wire[current])
+        current += 1
+        rdlen -= 1
+        next = wire[current : current + nlen]
+        current += nlen
+        rdlen -= nlen
+        windows = []
+        while rdlen > 0:
+            if rdlen < 3:
+                raise dns.exception.FormError("NSEC3 too short")
+            window = ord(wire[current])
+            octets = ord(wire[current + 1])
+            if octets == 0 or octets > 32:
+                raise dns.exception.FormError("bad NSEC3 octets")
+            current += 2
+            rdlen -= 2
+            if rdlen < octets:
+                raise dns.exception.FormError("bad NSEC3 bitmap length")
+            bitmap = wire[current : current + octets]
+            current += octets
+            rdlen -= octets
+            windows.append((window, bitmap))
+        return cls(rdclass, rdtype, algorithm, flags, iterations, salt, next, windows)
+
+    from_wire = classmethod(from_wire)
+
+    def _cmp(self, other):
+        b1 = cStringIO.StringIO()
+        self.to_wire(b1)
+        b2 = cStringIO.StringIO()
+        other.to_wire(b2)
+        return cmp(b1.getvalue(), b2.getvalue())