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James Palmer committed 7329764

No longer used.

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ignite/util/uuid.py

-# (c) 2005 Ian Bicking and contributors; written for Paste
-# (http://pythonpaste.org)
-#
-# Licensed under the MIT license:
-# http://www.opensource.org/licenses/mit-license.php
-"""UUID (universally unique identifiers) as specified in RFC 4122.
-
-This module provides the UUID class and the functions uuid1(), uuid3(),
-uuid4(), uuid5() for generating version 1, 3, 4, and 5 UUIDs respectively.
-
-This module works with Python 2.3 or higher."""
-
-__author__ = 'Ka-Ping Yee <ping@zesty.ca>'
-__date__ = '$Date: 2005/11/30 11:51:58 $'.split()[1].replace('/', '-')
-__version__ = '$Revision: 1.10 $'
-
-RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE = [
-    'reserved for NCS compatibility', 'specified in RFC 4122',
-    'reserved for Microsoft compatibility', 'reserved for future definition']
-
-class UUID(object):
-    """Instances of the UUID class represent UUIDs as specified in RFC 4122.
-    Converting a UUID to a string using str() produces a string in the form
-    "{12345678-1234-1234-1234-123456789abc}".  The UUID constructor accepts
-    a similar string (braces and hyphens optional), or six integer arguments
-    (with 32-bit, 16-bit, 16-bit, 8-bit, 8-bit, and 48-bit values
-    respectively).  UUID objects have the following attributes:
-
-        bytes       gets or sets the UUID as a 16-byte string
-
-        urn         gets the UUID as a URN as specified in RFC 4122
-
-        variant     gets or sets the UUID variant as one of the constants
-                    RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE
-
-        version     gets or sets the UUID version number (1 through 5)
-    """
-
-    def __init__(self, *args):
-        """Create a UUID either from a string representation in hexadecimal
-        or from six integers (32-bit time_low, 16-bit time_mid, 16-bit
-        time_hi_ver, 8-bit clock_hi_res, 8-bit clock_low, 48-bit node)."""
-        if len(args) == 1:
-            digits = args[0].replace('urn:', '').replace('uuid:', '')
-            digits = digits.replace('{', '').replace('}', '').replace('-', '')
-            assert len(digits) == 32, ValueError('badly formed UUID string')
-            time_low = int(digits[:8], 16)
-            time_mid = int(digits[8:12], 16)
-            time_hi_ver = int(digits[12:16], 16)
-            clock_hi_res = int(digits[16:18], 16)
-            clock_low = int(digits[18:20], 16)
-            node = int(digits[20:32], 16)
-        else:
-            (time_low, time_mid, time_hi_ver,
-             clock_hi_res, clock_low, node) = args
-        assert 0 <= time_low < 0x100000000, ValueError('time_low out of range')
-        assert 0 <= time_mid < 1<<16, ValueError('time_mid out of range')
-        assert 0 <= time_hi_ver < 1<<16, ValueError('time_hi_ver out of range')
-        assert 0 <= clock_hi_res < 1<<8, ValueError('clock_hi_res out of range')
-        assert 0 <= clock_low < 1<<8, ValueError('clock_low out of range')
-        assert 0 <= node < 0x1000000000000, ValueError('node out of range')
-        self.time_low = time_low
-        self.time_mid = time_mid
-        self.time_hi_ver = time_hi_ver
-        self.clock_hi_res = clock_hi_res
-        self.clock_low = clock_low
-        self.node = node
-
-    def __cmp__(self, other):
-        return cmp(self.bytes, getattr(other, 'bytes', other))
-
-    def __str__(self):
-        return '{%08x-%04x-%04x-%02x%02x-%012x}' % (
-            self.time_low, self.time_mid, self.time_hi_ver,
-            self.clock_hi_res, self.clock_low, self.node)
-
-    def __repr__(self):
-        return 'UUID(%r)' % str(self)
-
-    def get_bytes(self):
-        def byte(n):
-            return chr(n & 0xff)
-
-        return (byte(self.time_low >> 24) + byte(self.time_low >> 16) +
-                byte(self.time_low >> 8) + byte(self.time_low) +
-                byte(self.time_mid >> 8) + byte(self.time_mid) +
-                byte(self.time_hi_ver >> 8) + byte(self.time_hi_ver) +
-                byte(self.clock_hi_res) + byte(self.clock_low) +
-                byte(self.node >> 40) + byte(self.node >> 32) +
-                byte(self.node >> 24) + byte(self.node >> 16) +
-                byte(self.node >> 8) + byte(self.node))
-
-    def set_bytes(self, bytes):
-        values = map(ord, bytes)
-        self.time_low = ((values[0] << 24) + (values[1] << 16) +
-                         (values[2] << 8) + values[3])
-        self.time_mid = (values[4] << 8) + values[5]
-        self.time_hi_ver = (values[6] << 8) + values[7]
-        self.clock_hi_res = values[8]
-        self.clock_low = values[9]
-        self.node = ((values[10] << 40) + (values[11] << 32) +
-                     (values[12] << 24) + (values[13] << 16) +
-                     (values[14] << 8) + values[15])
-
-    bytes = property(get_bytes, set_bytes)
-
-    def get_urn(self):
-        return 'urn:uuid:%08x-%04x-%04x-%02x%02x-%012x' % (
-            self.time_low, self.time_mid, self.time_hi_ver,
-            self.clock_hi_res, self.clock_low, self.node)
-
-    urn = property(get_urn)
-
-    def get_variant(self):
-        if not self.clock_hi_res & 0x80:
-            return RESERVED_NCS
-        elif not self.clock_hi_res & 0x40:
-            return RFC_4122
-        elif not self.clock_hi_res & 0x20:
-            return RESERVED_MICROSOFT
-        else:
-            return RESERVED_FUTURE
-
-    def set_variant(self, variant):
-        if variant == RESERVED_NCS:
-            self.clock_hi_res &= 0x7f
-        elif variant == RFC_4122:
-            self.clock_hi_res &= 0x3f
-            self.clock_hi_res |= 0x80
-        elif variant == RESERVED_MICROSOFT:
-            self.clock_hi_res &= 0x1f
-            self.clock_hi_res |= 0xc0
-        elif variant == RESERVED_FUTURE:
-            self.clock_hi_res &= 0x1f
-            self.clock_hi_res |= 0xe0
-        else:
-            raise ValueError('illegal variant identifier')
-
-    variant = property(get_variant, set_variant)
-
-    def get_version(self):
-        return self.time_hi_ver >> 12
-
-    def set_version(self, version):
-        assert 1 <= version <= 5, ValueError('illegal version number')
-        self.time_hi_ver &= 0x0fff
-        self.time_hi_ver |= (version << 12)
-
-    version = property(get_version, set_version)
-
-def unixgetaddr(program):
-    """Get the hardware address on a Unix machine."""
-    from os import popen
-    for line in popen(program):
-        words = line.lower().split()
-        if 'hwaddr' in words:
-            addr = words[words.index('hwaddr') + 1]
-            return int(addr.replace(':', ''), 16)
-        if 'ether' in words:
-            addr = words[words.index('ether') + 1]
-            return int(addr.replace(':', ''), 16)
-
-def wingetaddr(program):
-    """Get the hardware address on a Windows machine."""
-    from os import popen
-    for line in popen(program + ' /all'):
-        if line.strip().lower().startswith('physical address'):
-            addr = line.split(':')[-1].strip()
-            return int(addr.replace('-', ''), 16)
-
-def getaddr():
-    """Get the hardware address as a 48-bit integer."""
-    from os.path import join, isfile
-    for dir in ['/sbin', '/usr/sbin', r'c:\windows',
-                r'c:\windows\system', r'c:\windows\system32']:
-        if isfile(join(dir, 'ifconfig')):
-            return unixgetaddr(join(dir, 'ifconfig'))
-        if isfile(join(dir, 'ipconfig.exe')):
-            return wingetaddr(join(dir, 'ipconfig.exe'))
-
-def uuid1():
-    """Generate a UUID based on the time and hardware address."""
-    from time import time
-    from random import randrange
-    nanoseconds = int(time() * 1e9)
-    # 0x01b21dd213814000 is the number of 100-ns intervals between the
-    # UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
-    timestamp = int(nanoseconds/100) + 0x01b21dd213814000
-    clock = randrange(1<<16) # don't use stable storage
-    time_low = timestamp & (0x100000000 - 1)
-    time_mid = (timestamp >> 32) & 0xffff
-    time_hi_ver = (timestamp >> 48) & 0x0fff
-    clock_low = clock & 0xff
-    clock_hi_res = (clock >> 8) & 0x3f
-    node = getaddr()
-    uuid = UUID(time_low, time_mid, time_hi_ver, clock_low, clock_hi_res, node)
-    uuid.variant = RFC_4122
-    uuid.version = 1
-    return uuid
-
-def uuid3(namespace, name):
-    """Generate a UUID from the MD5 hash of a namespace UUID and a name."""
-    try:
-        from hashlib import md5
-    except ImportError:
-        from md5 import md5
-    uuid = UUID(0, 0, 0, 0, 0, 0)
-    uuid.bytes = md5(namespace.bytes + name).digest()[:16]
-    uuid.variant = RFC_4122
-    uuid.version = 3
-    return uuid
-
-def uuid4():
-    """Generate a random UUID."""
-    try:
-        from os import urandom
-    except:
-        from random import randrange
-        uuid = UUID(randrange(1<<32L), randrange(1<<16), randrange(1<<16),
-                    randrange(1<<8), randrange(1<<8), randrange(1<<48L))
-    else:
-        uuid = UUID(0, 0, 0, 0, 0, 0)
-        uuid.bytes = urandom(16)
-    uuid.variant = RFC_4122
-    uuid.version = 4
-    return uuid
-
-def uuid5(namespace, name):
-    """Generate a UUID from the SHA-1 hash of a namespace UUID and a name."""
-    try:
-        from hashlib import sha1
-    except ImportError:
-        from sha import sha as sha1
-    uuid = UUID(0, 0, 0, 0, 0, 0)
-    uuid.bytes = sha1(namespace.bytes + name).digest()[:16]
-    uuid.variant = RFC_4122
-    uuid.version = 5
-    return uuid
-
-NAMESPACE_DNS = UUID('{6ba7b810-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_URL = UUID('{6ba7b811-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_OID = UUID('{6ba7b812-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_X500 = UUID('{6ba7b814-9dad-11d1-80b4-00c04fd430c8}')