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If you know that your registry has useless information in it and want to remove entries, this recipe was provide you with a simple way of accomplishing such a purpose. After entering strings to match and causing an EOF, the program will search for what you entered, and is designed to automatically delete what was requested. This is committed for archival to be run under Python 2.5 or later versions.

Python, 459 lines
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# ==============================================================================
# RegistrySAD.py
# ==============================================================================

from winreg import *

def main():
    faults = []
    try:
        while True:
            faults.append(raw_input('Fault: '))
    except EOFError:
        engine(faults)
    raw_input('====\nDONE\n====')

def engine(faults):
    faults = map(str.lower, faults)
    name = dict(map(reversed, HKEY.__dict__.items()))
    for hive in Registry():
        SAD(faults, hive, name[int(repr(hive)[4:-1])], False)

def SAD(faults, key, name, prune):
    try:
        for value in key.values:
            for fault in faults:
                if prune or fault in value.lower():
                    del key.values[value]
                    print 'DEL VAL: %s\\%s' % (name, value)
                    break
                else:
                    try:
                        if fault in key.values[value].value:
                            del key.values[value]
                            print 'DEL VAL: %s\\%s' % (name, value)
                            break
                    except:
                        pass
        for subkey in key.keys:
            search = True
            newname = '%s\\%s' % (name, subkey)
            for fault in faults:
                if prune or fault in subkey.lower():
                    search = False
                    SAD(faults, key.keys[subkey], newname, True)
                    del key.keys[subkey]
                    print 'DEL KEY:', '%s\\%s' % (name, subkey)
                    break
            if search:
                SAD(faults, key.keys[subkey], newname, False)
    except:
        pass

if __name__ == '__main__':
    main()

# ==============================================================================
# winreg.py
# ==============================================================================

'''Module for accessing MWR.

This module provides an advanced, easy-to-use API for
accessing and mutating the Microsoft Windows Registry.'''

################################################################################

__version__ = '$Revision: 0 $'
__date__ = 'September 27, 2007'
__author__ = 'Stephen "Zero" Chappell <my.bios@gmail.com>'
__credits__ = '''\
S. Schaub, for introducing me to programming.
B. Gates, for creating the Windows Registry.
F. Drake, for enforcing good Python documentation.'''

################################################################################

import _winreg
import sys as _sys
import time as _time

################################################################################

class HKEY:
    'Hive Constants'
    CLASSES_ROOT = -2147483648
    CURRENT_USER = -2147483647
    LOCAL_MACHINE = -2147483646
    USERS = -2147483645
    CURRENT_CONFIG = -2147483643

class KEY:
    'Mode Constants'
    QUERY_VALUE = 1
    SET_VALUE = 2
    CREATE_SUB_KEY = 4
    ENUMERATE_SUB_KEYS = 8
    NOTIFY = 16
    CREATE_LINK = 32
    WRITE = 131078
    EXECUTE = 131097
    READ = 131097
    ALL_ACCESS = 983103

class REG:
    'Type Constants'
    NONE = 0
    SZ = 1
    EXPAND_SZ = 2
    BINARY = 3
    DWORD = 4
    DWORD_BIG_ENDIAN = 5
    LINK = 6
    MULTI_SZ = 7
    RESOURCE_LIST = 8
    FULL_RESOURCE_DESCRIPTOR = 9
    RESOURCE_REQUIREMENTS_LIST = 10
    QWORD = 11

################################################################################

class _Value(object):

    '_Value(value) -> _Value'

    def __init__(self, value):
        'Initialize the _Value object.'
        self.__value = value
        self.__repr = '%s(%r)' % (self.__class__.__name__, value)

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def __get_value(self):
        'Private class method.'
        return self.__value

    value = property(__get_value, doc='Value of this object.')

class REG_NONE(_Value): pass
class REG_SZ(_Value): pass
class REG_EXPAND_SZ(_Value): pass
class REG_BINARY(_Value): pass
class REG_DWORD(_Value): pass
class REG_DWORD_BIG_ENDIAN(_Value): pass
class REG_LINK(_Value): pass
class REG_MULTI_SZ(_Value): pass
class REG_RESOURCE_LIST(_Value): pass
class REG_FULL_RESOURCE_DESCRIPTOR(_Value): pass
class REG_RESOURCE_REQUIREMENTS_LIST(_Value): pass
class REG_QWORD(_Value): pass

################################################################################

class Registry(object):

    'Registry([computer]) -> Registry'

    def __init__(self, computer=None):
        'Initialize the Registry object.'
        self.__computer = computer
        self.__repr = 'Registry()' if computer is None else 'Registry(%r)' % computer

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def __iter__(self):
        'Iterate over hives defined in HKEY.'
        return (Key(key, computer=self.__computer) for key in map(HKEY.__dict__.__getitem__, filter(str.isupper, dir(HKEY))))

    def __HKEY_CLASSES_ROOT(self):
        'Private class method.'
        return Key(HKEY.CLASSES_ROOT, computer=self.__computer)

    def __HKEY_CURRENT_USER(self):
        'Private class method.'
        return Key(HKEY.CURRENT_USER, computer=self.__computer)

    def __HKEY_LOCAL_MACHINE(self):
        'Private class method.'
        return Key(HKEY.LOCAL_MACHINE, computer=self.__computer)

    def __HKEY_USERS(self):
        'Private class method.'
        return Key(HKEY.USERS, computer=self.__computer)

    def __HKEY_CURRENT_CONFIG(self):
        'Private class method.'
        return Key(HKEY.CURRENT_CONFIG, computer=self.__computer)

    HKEY_CLASSES_ROOT = property(__HKEY_CLASSES_ROOT, doc='The CLASSES_ROOT hive.')
    HKEY_CURRENT_USER = property(__HKEY_CURRENT_USER, doc='The CURRENT_USER hive.')
    HKEY_LOCAL_MACHINE = property(__HKEY_LOCAL_MACHINE, doc='The LOCAL_MACHINE hive.')
    HKEY_USERS = property(__HKEY_USERS, doc='The USERS hive.')
    HKEY_CURRENT_CONFIG = property(__HKEY_CURRENT_CONFIG, doc='The CURRENT_CONFIG hive.')

################################################################################

class Key(object):

    '''Key(key[, subkey][, mode][, computer]) -> Key

    Key(key) -> Key
    Key(key, subkey) -> Key
    Key(key, mode=value) -> Key
    Key(key, subkey, mode) -> Key
    Key(key, computer=value) -> Key
    Key(key, subkey, computer=value) -> Key
    Key(key, mode=value, computer=value) -> Key
    Key(key, subkey, mode, computer) -> Key'''

    def __init__(self, key, subkey=None, mode=None, computer=None):
        'Initialize the Key object.'
        if isinstance(key, (int, _winreg.HKEYType)) and subkey is None and mode is None and computer is None:
            self.__key = _winreg.OpenKey(key, '')
        elif isinstance(key, Key) and subkey is None and mode is None and computer is None:
            self.__key = _winreg.OpenKey(key.__key, '')
        elif isinstance(key, (int, _winreg.HKEYType)) and isinstance(subkey, str) and mode is None and computer is None:
            self.__key = _winreg.OpenKey(key, subkey)
        elif isinstance(key, Key) and isinstance(subkey, str) and mode is None and computer is None:
            self.__key = _winreg.OpenKey(key.__key, subkey)
        elif isinstance(key, (int, _winreg.HKEYType)) and subkey is None and isinstance(mode, int) and computer is None:
            self.__key = _winreg.OpenKey(key, '', 0, mode)
        elif isinstance(key, Key) and subkey is None and isinstance(mode, int) and computer is None:
            self.__key = _winreg.OpenKey(key.__key, '', 0, mode)
        elif isinstance(key, (int, _winreg.HKEYType)) and isinstance(subkey, str) and isinstance(mode, int) and computer is None:
            self.__key = _winreg.OpenKey(key, subkey, 0, mode)
        elif isinstance(key, Key) and isinstance(subkey, str) and isinstance(mode, int) and computer is None:
            self.__key = _winreg.OpenKey(key.__key, subkey, 0, mode)
        elif isinstance(key, int) and subkey is None and mode is None and isinstance(computer, str):
            self.__key = _winreg.ConnectRegistry(computer, key)
        elif isinstance(key, int) and isinstance(subkey, str) and mode is None and isinstance(computer, str):
            self.__key = _winreg.OpenKey(_winreg.ConnectRegistry(computer, key), subkey)
        elif isinstance(key, int) and subkey is None and isinstance(mode, int) and isinstance(computer, str):
            self.__key = _winreg.OpenKey(_winreg.ConnectRegistry(computer, key), '', 0, mode)
        elif isinstance(key, int) and isinstance(subkey, str) and isinstance(mode, int) and isinstance(computer, str):
            self.__key = _winreg.OpenKey(_winreg.ConnectRegistry(computer, key), subkey, 0, mode)
        else:
            raise TypeError, 'Please check documentation.'
        self.__keys = Keys(self.__key)
        self.__values = Values(self.__key)
        self.__info = Info(self.__key)
        self.__repr = 'Key(%s)' % ', '.join([repr(key)] + ['%s=%r' % (key, value) for key, value in zip(('subkey', 'mode', 'computer'), (subkey, mode, computer)) if value is not None])

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def save(self, file_name):
        'Save this key to file.'
        _winreg.SaveKey(self.__key, file_name)

    def load(self, subkey, file_name):
        'Load subkey from file.'
        _winreg.LoadKey(self.__key, subkey, file_name)

    def __get_keys(self):
        'Private class method.'
        return self.__keys

    def __set_keys(self, keys):
        'Private class method.'
        if isinstance(keys, str):
            _winreg.CreateKey(self.__key, keys)
        elif isinstance(keys, (list, tuple)):
            for key in keys:
                self.keys = key
        else:
            raise TypeError, 'Key Could Not Be Created'

    def __del_keys(self):
        'Private class method.'
        try:
            while True:
                _winreg.DeleteKey(self.__key, _winreg.EnumKey(self.__key, 0))
        except EnvironmentError:
            pass

    def __get_values(self):
        'Private class method.'
        return self.__values

    def __set_values(self, values):
        'Private class method.'
        if isinstance(values, str):
            _winreg.SetValueEx(self.__key, values, 0, REG.SZ, _winreg.QueryValue(self.__key, ''))
        elif isinstance(values, (list, tuple)):
            for value in values:
                self.values = value
        else:
            raise TypeError, 'Value Could Not Be Created'

    def __del_values(self):
        'Private class method.'
        try:
            while True:
                _winreg.DeleteValue(self.__key, _winreg.EnumValue(self.__key, 0)[0])
        except EnvironmentError:
            pass

    def __get_value(self):
        'Private class method.'
        return _winreg.QueryValue(self.__key, '')

    def __set_value(self, value):
        'Private class method.'
        _winreg.SetValue(self.__key, '', REG.SZ, value)

    def __del_value(self):
        'Private class method.'
        _winreg.DeleteValue(self.__key, '')

    def __get_info(self):
        'Private class method.'
        return self.__info

    keys = property(__get_keys, __set_keys, __del_keys, 'Keys of this key.')
    values = property(__get_values, __set_values, __del_values, 'Values of this key.')
    value = property(__get_value, __set_value, __del_value, 'Value of this key.')
    info = property(__get_info, doc='Information about this key.')

################################################################################

class Keys(object):

    'Keys(key) -> Keys'

    def __init__(self, key):
        'Initialize the Keys object.'
        self.__key = key
        self.__repr = 'Keys(%r)' % key

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def __len__(self):
        'Return the number of keys.'
        return _winreg.QueryInfoKey(self.__key)[0]

    def __getitem__(self, key):
        'Return the specified key.'
        return Key(self.__key, key)

    def __setitem__(self, key, value):
        'Assign the item to a key.'
        key = Key(_winreg.CreateKey(self.__key, key), mode=KEY.ALL_ACCESS)
        for name in value.values:
            key.values[name] = value.values[name]
        for name in value.keys:
            key.keys[name] = value.keys[name]

    def __delitem__(self, key):
        'Delete the specified key.'
        _winreg.DeleteKey(self.__key, key)

    def __iter__(self):
        'Iterate over the key names.'
        return iter(tuple(_winreg.EnumKey(self.__key, index) for index in xrange(_winreg.QueryInfoKey(self.__key)[0])))

    def __contains__(self, item):
        'Check for a key\'s existence.'
        item = item.lower()
        for index in xrange(_winreg.QueryInfoKey(self.__key)[0]):
            if _winreg.EnumKey(self.__key, index).lower() == item:
                return True
        return False

################################################################################

class Values(object):

    'Values(key) -> Values'

    TYPES = REG_NONE, REG_SZ, REG_EXPAND_SZ, REG_BINARY, REG_DWORD, REG_DWORD_BIG_ENDIAN, REG_LINK, REG_MULTI_SZ, REG_RESOURCE_LIST, REG_FULL_RESOURCE_DESCRIPTOR, REG_RESOURCE_REQUIREMENTS_LIST, REG_QWORD

    def __init__(self, key):
        'Initialize the Values object.'
        self.__key = key
        self.__repr = 'Values(%r)' % key

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def __len__(self):
        'Return the number of values.'
        return _winreg.QueryInfoKey(self.__key)[1]

    def __getitem__(self, key):
        'Return the specified value.'
        item_value, item_type = _winreg.QueryValueEx(self.__key, key)
        return self.TYPES[item_type](item_value)

    def __setitem__(self, key, value):
        'Assign the item to a value.'
        if isinstance(value, self.TYPES):
            _winreg.SetValueEx(self.__key, key, 0, list(self.TYPES).index(value.__class__), value.value)
        else:
            _winreg.SetValueEx(self.__key, key, 0, _winreg.QueryValueEx(self.__key, key)[1], value)

    def __delitem__(self, key):
        'Delete the specified value.'
        _winreg.DeleteValue(self.__key, key)

    def __iter__(self):
        'Iterate over the value names.'
        return iter(tuple(_winreg.EnumValue(self.__key, index)[0] for index in xrange(_winreg.QueryInfoKey(self.__key)[1])))

    def __contains__(self, item):
        'Check for a value\'s existence.'
        item = item.lower()
        for index in xrange(_winreg.QueryInfoKey(self.__key)[1]):
            if _winreg.EnumValue(self.__key, index)[0].lower() == item:
                return True
        return False

################################################################################

class Info(object):

    'Info(key) -> Info'

    def __init__(self, key):
        'Initialize the Info object.'
        self.__key = key
        self.__repr = 'Info(%r)' % key

    def __repr__(self):
        'Return the object\'s representation.'
        return self.__repr

    def __get_keys(self):
        'Private class method.'
        return _winreg.QueryInfoKey(self.__key)[0]

    def __get_values(self):
        'Private class method.'
        return _winreg.QueryInfoKey(self.__key)[1]

    def __get_modified(self):
        'Private class method.'
        return _winreg.QueryInfoKey(self.__key)[2]

    def __get_difference(self):
        'Private class method.'
        return _time.time() + 11644473600.0 - self.modified / 10000000.0

    keys = property(__get_keys, doc='Number of keys.')
    values = property(__get_values, doc='Number of values.')
    modified = property(__get_modified, doc='Time last modified.')
    difference = property(__get_difference, doc='Seconds since modified.')

################################################################################

if __name__ == '__main__':
    _sys.stdout.write('Content-Type: text/plain\n\n')
    _sys.stdout.write(file(_sys.argv[0]).read())

2 comments

Dan Zemke 9 years, 4 months ago  # | flag

Your 'archive' tags are not useful for the community, please reconsider.

Stephen Chappell (author) 9 years, 4 months ago  # | flag

Thanks for the notice. Labeling a recipe as being python2.5 is probably sufficient. Hopefully, people are moving to Python 3.