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2f23d996bdb1925f9374c02358d268a524d0658e
nmap/zenmap/radialnet/core/XMLHandler.py
dmiller 2f23d996bd Prevent PyXML from importing, causing crashes 
http://seclists.org/nmap-dev/2014/q2/318

Essentially, we import the xml name, then override its search path,
stripping out the _xmlplus paths that PyXML uses. This leaves only the
Python 2 standard library path, which is what Zenmap was written for.
2014-05-21 03:53:58 +00:00

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# vim: set fileencoding=utf-8 :
# ***********************IMPORTANT NMAP LICENSE TERMS************************
# * *
# * The Nmap Security Scanner is (C) 1996-2013 Insecure.Com LLC. Nmap is *
# * also a registered trademark of Insecure.Com LLC. This program is free *
# * software; you may redistribute and/or modify it under the terms of the *
# * GNU General Public License as published by the Free Software *
# * Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS *
# * AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your right to use, *
# * modify, and redistribute this software under certain conditions. If *
# * you wish to embed Nmap technology into proprietary software, we sell *
# * alternative licenses (contact sales@nmap.com). Dozens of software *
# * vendors already license Nmap technology such as host discovery, port *
# * scanning, OS detection, version detection, and the Nmap Scripting *
# * Engine. *
# * *
# * Note that the GPL places important restrictions on "derivative works", *
# * yet it does not provide a detailed definition of that term. To avoid *
# * misunderstandings, we interpret that term as broadly as copyright law *
# * allows. For example, we consider an application to constitute a *
# * derivative work for the purpose of this license if it does any of the *
# * following with any software or content covered by this license *
# * ("Covered Software"): *
# * *
# * o Integrates source code from Covered Software. *
# * *
# * o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
# * or nmap-service-probes. *
# * *
# * o Is designed specifically to execute Covered Software and parse the *
# * results (as opposed to typical shell or execution-menu apps, which will *
# * execute anything you tell them to). *
# * *
# * o Includes Covered Software in a proprietary executable installer. The *
# * installers produced by InstallShield are an example of this. Including *
# * Nmap with other software in compressed or archival form does not *
# * trigger this provision, provided appropriate open source decompression *
# * or de-archiving software is widely available for no charge. For the *
# * purposes of this license, an installer is considered to include Covered *
# * Software even if it actually retrieves a copy of Covered Software from *
# * another source during runtime (such as by downloading it from the *
# * Internet). *
# * *
# * o Links (statically or dynamically) to a library which does any of the *
# * above. *
# * *
# * o Executes a helper program, module, or script to do any of the above. *
# * *
# * This list is not exclusive, but is meant to clarify our interpretation *
# * of derived works with some common examples. Other people may interpret *
# * the plain GPL differently, so we consider this a special exception to *
# * the GPL that we apply to Covered Software. Works which meet any of *
# * these conditions must conform to all of the terms of this license, *
# * particularly including the GPL Section 3 requirements of providing *
# * source code and allowing free redistribution of the work as a whole. *
# * *
# * As another special exception to the GPL terms, Insecure.Com LLC grants *
# * permission to link the code of this program with any version of the *
# * OpenSSL library which is distributed under a license identical to that *
# * listed in the included docs/licenses/OpenSSL.txt file, and distribute *
# * linked combinations including the two. *
# * *
# * Any redistribution of Covered Software, including any derived works, *
# * must obey and carry forward all of the terms of this license, including *
# * obeying all GPL rules and restrictions. For example, source code of *
# * the whole work must be provided and free redistribution must be *
# * allowed. All GPL references to "this License", are to be treated as *
# * including the terms and conditions of this license text as well. *
# * *
# * Because this license imposes special exceptions to the GPL, Covered *
# * Work may not be combined (even as part of a larger work) with plain GPL *
# * software. The terms, conditions, and exceptions of this license must *
# * be included as well. This license is incompatible with some other open *
# * source licenses as well. In some cases we can relicense portions of *
# * Nmap or grant special permissions to use it in other open source *
# * software. Please contact fyodor@nmap.org with any such requests. *
# * Similarly, we don't incorporate incompatible open source software into *
# * Covered Software without special permission from the copyright holders. *
# * *
# * If you have any questions about the licensing restrictions on using *
# * Nmap in other works, are happy to help. As mentioned above, we also *
# * offer alternative license to integrate Nmap into proprietary *
# * applications and appliances. These contracts have been sold to dozens *
# * of software vendors, and generally include a perpetual license as well *
# * as providing for priority support and updates. They also fund the *
# * continued development of Nmap. Please email sales@nmap.com for further *
# * information. *
# * *
# * If you have received a written license agreement or contract for *
# * Covered Software stating terms other than these, you may choose to use *
# * and redistribute Covered Software under those terms instead of these. *
# * *
# * Source is provided to this software because we believe users have a *
# * right to know exactly what a program is going to do before they run it. *
# * This also allows you to audit the software for security holes (none *
# * have been found so far). *
# * *
# * Source code also allows you to port Nmap to new platforms, fix bugs, *
# * and add new features. You are highly encouraged to send your changes *
# * to the dev@nmap.org mailing list for possible incorporation into the *
# * main distribution. By sending these changes to Fyodor or one of the *
# * Insecure.Org development mailing lists, or checking them into the Nmap *
# * source code repository, it is understood (unless you specify otherwise) *
# * that you are offering the Nmap Project (Insecure.Com LLC) the *
# * unlimited, non-exclusive right to reuse, modify, and relicense the *
# * code. Nmap will always be available Open Source, but this is important *
# * because the inability to relicense code has caused devastating problems *
# * for other Free Software projects (such as KDE and NASM). We also *
# * occasionally relicense the code to third parties as discussed above. *
# * If you wish to specify special license conditions of your *
# * contributions, just say so when you send them. *
# * *
# * This program is distributed in the hope that it will be useful, but *
# * WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Nmap *
# * license file for more details (it's in a COPYING file included with *
# * Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
# * *
# ***************************************************************************/
# Prevent loading PyXML
import xml
xml.__path__ = [x for x in xml.__path__ if "_xmlplus" not in x]
import xml.sax
import xml.sax.saxutils
from xml.sax.xmlreader import AttributesImpl as Attributes
def convert_to_utf8(text):
"""
"""
return text.encode('utf8', 'replace')
class XMLNode:
"""
"""
def __init__(self, name):
"""
"""
self.__name = name
self.__text = ""
self.__attrs = dict()
self.__children = []
def set_text(self, text):
"""
"""
self.__text = text
def get_text(self):
"""
"""
return self.__text
def set_name(self, name):
"""
"""
self.__name = name
def get_name(self):
"""
"""
return self.__name
def add_attr(self, key, value):
"""
"""
self.__attrs[key] = value
def add_child(self, child):
"""
"""
self.__children.append(child)
def get_keys(self):
"""
"""
return self.__attrs.keys()
def get_attr(self, attr):
"""
"""
return self.__attrs.get(attr)
def get_attrs(self):
"""
"""
return self.__attrs
def get_children(self):
"""
"""
return self.__children
def query_children(self, name, attr, value, first=False, deep=False):
"""
"""
result = []
for child in self.__children:
if child.get_name() == name:
if attr in child.get_attrs():
c_value = child.get_attr(attr)
if c_value == value or c_value == str(value):
result.append(child)
if deep:
c_result = child.query_children(name, attr, value, first, deep)
if c_result is not None:
if first:
return c_result
else:
result.extend(c_result)
if first and len(result) > 0:
return result[0]
if first:
return None
return result
def search_children(self, name, first=False, deep=False):
"""
"""
result = []
for child in self.__children:
if child.get_name() == name:
result.append(child)
if first:
return result[0]
if deep:
c_result = child.search_children(name, first, deep)
if c_result is not None and c_result != []:
if first:
return c_result
else:
result.extend(c_result)
if first:
return None
return result
class XMLWriter(xml.sax.saxutils.XMLGenerator):
"""
"""
def __init__(self, file, root=None, encoding="utf-8"):
"""
"""
xml.sax.saxutils.XMLGenerator.__init__(self, file, encoding)
self.__root = root
def set_root(self, root):
"""
"""
self.__root = root
def write(self):
"""
"""
self.startDocument()
self.write_xml_node([self.__root])
self.endDocument()
def write_xml_node(self, root):
"""
"""
for child in root:
self.startElement(child.get_name(), Attributes(child.get_attrs()))
if child.get_text() != "":
self.characters(child.get_text())
self.write_xml_node(child.get_children())
self.endElement(child.get_name())
class XMLReader(xml.sax.ContentHandler):
"""
"""
def __init__(self, file=None):
"""
"""
self.__text = ""
self.__status = []
self.__file = file
self.__root = None
self.__parser = xml.sax.make_parser()
self.__parser.setContentHandler(self)
def set_file(self, file, root):
"""
"""
self.__file = file
def get_file(self):
"""
"""
return self.__file
def get_root(self):
"""
"""
return self.__root
def parse(self):
"""
"""
if self.__file is not None:
self.__parser.parse(self.__file)
def startDocument(self):
"""
"""
pass
def startElement(self, name, attrs):
"""
"""
# create new node
node = XMLNode(name)
# putting attributes and values in node
for attr in attrs.getNames():
node.add_attr(attr, convert_to_utf8(attrs.get(attr).strip()))
# who is my father?
if len(self.__status) > 0:
self.__status[-1].add_child(node)
if self.__root is None:
self.__root = node
self.__status.append(node)
def endElement(self, name):
"""
"""
self.__status[-1].set_text(convert_to_utf8(self.__text.strip()))
self.__text = ""
self.__status.pop()
def endDocument(self):
"""
"""
pass
def characters(self, text):
"""
"""
self.__text += text
if __name__ == "__main__":
import sys
reader = XMLReader(sys.argv[1])
reader.parse()
root = reader.get_root()
writer = XMLWriter(open("test.xml", 'w'), root)
writer.write()
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