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07fa6678e4
Python regards 'GPT\.INI$' as a string containing an invalid escape
sequence '\.', which is ignored (i.e. treated as the literal sequence
of those 2 characters), but only after Python has grumbled to itself,
and to you if you enabled DeprecationWarnings.
The proper thing to do here is use r-strings, like r'GPT\.INI$', which
tell Python that all backslashes are literal. Alternatively (as we do
once in this patch), the backslash can itself be escaped ('\\').
There are more problems of this nature in the build scripts.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Noel Power <npower@samba.org>
379 lines
13 KiB
Python
379 lines
13 KiB
Python
# GPO Parser for security extensions
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#
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# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
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# Written by Garming Sam <garming@catalyst.net.nz>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import codecs
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import collections
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import re
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from abc import ABCMeta, abstractmethod
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from xml.etree.ElementTree import Element, SubElement
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from samba.gp_parse import GPParser
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# [MS-GPSB] Security Protocol Extension
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class GptTmplInfParser(GPParser):
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sections = None
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encoding = 'utf-16'
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output_encoding = 'utf-16le'
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class AbstractParam:
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__metaclass__ = ABCMeta
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def __init__(self):
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self.param_list = []
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@abstractmethod
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def parse(self, line):
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pass
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@abstractmethod
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def write_section(self, header, fp):
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pass
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@abstractmethod
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def build_xml(self, xml_parent):
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pass
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@abstractmethod
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def from_xml(self, section):
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pass
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class IniParam(AbstractParam):
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# param_list = [(Key, Value),]
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def parse(self, line):
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key, val = line.split('=')
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self.param_list.append((key.strip(),
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val.strip()))
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# print key.strip(), val.strip()
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def write_section(self, header, fp):
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if len(self.param_list) == 0:
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return
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fp.write(u'[%s]\r\n' % header)
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for key_out, val_out in self.param_list:
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fp.write(u'%s = %s\r\n' % (key_out,
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val_out))
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def build_xml(self, xml_parent):
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for key_ini, val_ini in self.param_list:
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child = SubElement(xml_parent, 'Parameter')
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key = SubElement(child, 'Key')
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value = SubElement(child, 'Value')
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key.text = key_ini
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value.text = val_ini
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def from_xml(self, section):
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for param in section.findall('Parameter'):
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key = param.find('Key').text
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value = param.find('Value').text
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if value is None:
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value = ''
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self.param_list.append((key, value))
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class RegParam(AbstractParam):
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# param_list = [Value, Value, ...]
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def parse(self, line):
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# = can occur in a registry key, so don't parse these
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self.param_list.append(line)
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# print line
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def write_section(self, header, fp):
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if len(self.param_list) == 0:
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return
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fp.write(u'[%s]\r\n' % header)
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for param in self.param_list:
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fp.write(u'%s\r\n' % param)
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def build_xml(self, xml_parent):
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for val_ini in self.param_list:
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child = SubElement(xml_parent, 'Parameter')
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value = SubElement(child, 'Value')
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value.text = val_ini
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def from_xml(self, section):
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for param in section.findall('Parameter'):
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value = param.find('Value').text
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if value is None:
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value = ''
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self.param_list.append(value)
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class PrivSIDListParam(AbstractParam):
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# param_list = [(Key, [SID, SID,..]),
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def parse(self, line):
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key, val = line.split('=')
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self.param_list.append((key.strip(),
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[x.strip() for x in val.split(',')]))
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# print line
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def write_section(self, header, fp):
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if len(self.param_list) == 0:
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return
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fp.write(u'[%s]\r\n' % header)
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for key_out, val in self.param_list:
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val_out = u','.join(val)
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fp.write(u'%s = %s\r\n' % (key_out, val_out))
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def build_xml(self, xml_parent):
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for key_ini, sid_list in self.param_list:
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child = SubElement(xml_parent, 'Parameter')
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key = SubElement(child, 'Key')
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key.text = key_ini
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for val_ini in sid_list:
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value = SubElement(child, 'Value')
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value.attrib['user_id'] = 'TRUE'
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value.text = val_ini
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def from_xml(self, section):
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for param in section.findall('Parameter'):
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key = param.find('Key').text
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sid_list = []
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for val in param.findall('Value'):
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value = val.text
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if value is None:
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value = ''
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sid_list.append(value)
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self.param_list.append((key, sid_list))
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class NameModeACLParam(AbstractParam):
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# param_list = [[Name, Mode, ACL],]
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def parse(self, line):
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parameters = [None, None, None]
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current_arg = 0
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while line != '':
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# Read quoted string
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if line[:1] == '"':
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line = line[1:]
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findex = line.find('"')
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parameters[current_arg] = line[:findex]
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line = line[findex + 1:]
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# Skip past delimeter
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elif line[:1] == ',':
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line = line[1:]
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current_arg += 1
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# Read unquoted string
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else:
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findex = line.find(',')
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parameters[current_arg] = line[:findex]
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line = line[findex:]
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# print parameters
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# print line
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self.param_list.append(parameters)
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def write_section(self, header, fp):
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if len(self.param_list) == 0:
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return
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fp.write(u'[%s]\r\n' % header)
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for param in self.param_list:
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fp.write(u'"%s",%s,"%s"\r\n' % tuple(param))
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def build_xml(self, xml_parent):
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for name_mode_acl in self.param_list:
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child = SubElement(xml_parent, 'Parameter')
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value = SubElement(child, 'Value')
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value.text = name_mode_acl[0]
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value = SubElement(child, 'Value')
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value.text = name_mode_acl[1]
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value = SubElement(child, 'Value')
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value.attrib['acl'] = 'TRUE'
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value.text = name_mode_acl[2]
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def from_xml(self, section):
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for param in section.findall('Parameter'):
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name_mode_acl = [x.text if x.text else '' for x in param.findall('Value')]
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self.param_list.append(name_mode_acl)
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class MemberSIDListParam(AbstractParam):
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# param_list = [([XXXX, Memberof|Members], [SID, SID...]),...]
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def parse(self, line):
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key, val = line.split('=')
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key = key.strip()
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self.param_list.append((key.split('__'),
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[x.strip() for x in val.split(',')]))
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# print line
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def write_section(self, header, fp):
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if len(self.param_list) == 0:
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return
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fp.write(u'[%s]\r\n' % header)
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for key, val in self.param_list:
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key_out = u'__'.join(key)
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val_out = u','.join(val)
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fp.write(u'%s = %s\r\n' % (key_out, val_out))
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def build_xml(self, xml_parent):
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for key_ini, sid_list in self.param_list:
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child = SubElement(xml_parent, 'Parameter')
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key = SubElement(child, 'Key')
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key.text = key_ini[0]
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key.attrib['member_type'] = key_ini[1]
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key.attrib['user_id'] = 'TRUE'
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for val_ini in sid_list:
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value = SubElement(child, 'Value')
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value.attrib['user_id'] = 'TRUE'
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value.text = val_ini
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def from_xml(self, section):
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for param in section.findall('Parameter'):
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key = param.find('Key')
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member_type = key.attrib['member_type']
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sid_list = []
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for val in param.findall('Value'):
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value = val.text
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if value is None:
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value = ''
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sid_list.append(value)
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self.param_list.append(([key.text, member_type], sid_list))
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class UnicodeParam(AbstractParam):
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def parse(self, line):
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# print line
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pass
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def write_section(self, header, fp):
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fp.write(u'[Unicode]\r\nUnicode=yes\r\n')
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def build_xml(self, xml_parent):
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# We do not bother storing this field
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pass
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def from_xml(self, section):
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# We do not bother storing this field
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pass
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class VersionParam(AbstractParam):
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def parse(self, line):
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# print line
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pass
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def write_section(self, header, fp):
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out = u'[Version]\r\nsignature="$CHICAGO$"\r\nRevision=1\r\n'
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fp.write(out)
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def build_xml(self, xml_parent):
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# We do not bother storing this field
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pass
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def from_xml(self, section):
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# We do not bother storing this field
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pass
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def parse(self, contents):
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inf_file = contents.decode(self.encoding)
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self.sections = collections.OrderedDict([
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(u'Unicode', self.UnicodeParam()),
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(u'Version', self.VersionParam()),
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(u'System Access', self.IniParam()),
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(u'Kerberos Policy', self.IniParam()),
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(u'System Log', self.IniParam()),
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(u'Security Log', self.IniParam()),
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(u'Application Log', self.IniParam()),
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(u'Event Audit', self.IniParam()),
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(u'Registry Values', self.RegParam()),
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(u'Privilege Rights', self.PrivSIDListParam()),
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(u'Service General Setting', self.NameModeACLParam()),
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(u'Registry Keys', self.NameModeACLParam()),
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(u'File Security', self.NameModeACLParam()),
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(u'Group Membership', self.MemberSIDListParam()),
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])
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current_param_parser = None
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current_header_name = None
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for line in inf_file.splitlines():
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match = re.match(r'\[(.*)\]', line)
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if match:
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header_name = match.group(1)
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if header_name in self.sections:
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current_param_parser = self.sections[header_name]
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# print current_param_parser
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continue
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# print 'using', current_param_parser
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current_param_parser.parse(line)
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def write_binary(self, filename):
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with codecs.open(filename, 'wb+',
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self.output_encoding) as f:
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# Write the byte-order mark
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f.write(u'\ufeff')
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for s in self.sections:
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self.sections[s].write_section(s, f)
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def write_xml(self, filename):
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with open(filename, 'wb') as f:
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root = Element('GptTmplInfFile')
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for sec_inf in self.sections:
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section = SubElement(root, 'Section')
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section.attrib['name'] = sec_inf
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self.sections[sec_inf].build_xml(section)
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self.write_pretty_xml(root, f)
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# contents = codecs.open(filename, encoding='utf-8').read()
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# self.load_xml(fromstring(contents))
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def load_xml(self, root):
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self.sections = collections.OrderedDict([
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(u'Unicode', self.UnicodeParam()),
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(u'Version', self.VersionParam()),
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(u'System Access', self.IniParam()),
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(u'Kerberos Policy', self.IniParam()),
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(u'System Log', self.IniParam()),
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(u'Security Log', self.IniParam()),
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(u'Application Log', self.IniParam()),
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(u'Event Audit', self.IniParam()),
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(u'Registry Values', self.RegParam()),
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(u'Privilege Rights', self.PrivSIDListParam()),
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(u'Service General Setting', self.NameModeACLParam()),
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(u'Registry Keys', self.NameModeACLParam()),
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(u'File Security', self.NameModeACLParam()),
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(u'Group Membership', self.MemberSIDListParam()),
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])
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for s in root.findall('Section'):
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self.sections[s.attrib['name']].from_xml(s)
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