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190 lines
10 KiB
Python
190 lines
10 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# ***********************IMPORTANT NMAP LICENSE TERMS************************
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# * *
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# * The Nmap Security Scanner is (C) 1996-2012 Insecure.Com LLC. Nmap is *
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# * also a registered trademark of Insecure.Com LLC. This program is free *
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# * software; you may redistribute and/or modify it under the terms of the *
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# * GNU General Public License as published by the Free Software *
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# * Foundation; Version 2 with the clarifications and exceptions described *
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# * below. This guarantees your right to use, modify, and redistribute *
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# * this software under certain conditions. If you wish to embed Nmap *
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# * technology into proprietary software, we sell alternative licenses *
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# * (contact sales@insecure.com). Dozens of software vendors already *
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# * license Nmap technology such as host discovery, port scanning, OS *
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# * detection, version detection, and the Nmap Scripting Engine. *
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# * *
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# * Note that the GPL places important restrictions on "derived works", yet *
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# * it does not provide a detailed definition of that term. To avoid *
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# * misunderstandings, we interpret that term as broadly as copyright law *
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# * allows. For example, we consider an application to constitute a *
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# * "derivative work" for the purpose of this license if it does any of the *
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# * following: *
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# * o Integrates source code from Nmap *
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# * o Reads or includes Nmap copyrighted data files, such as *
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# * nmap-os-db or nmap-service-probes. *
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# * o Executes Nmap and parses the results (as opposed to typical shell or *
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# * execution-menu apps, which simply display raw Nmap output and so are *
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# * not derivative works.) *
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# * o Integrates/includes/aggregates Nmap into a proprietary executable *
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# * installer, such as those produced by InstallShield. *
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# * o Links to a library or executes a program that does any of the above *
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# * *
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# * The term "Nmap" should be taken to also include any portions or derived *
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# * works of Nmap, as well as other software we distribute under this *
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# * license such as Zenmap, Ncat, and Nping. This list is not exclusive, *
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# * but is meant to clarify our interpretation of derived works with some *
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# * common examples. Our interpretation applies only to Nmap--we don't *
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# * speak for other people's GPL works. *
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# * *
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# * If you have any questions about the GPL licensing restrictions on using *
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# * Nmap in non-GPL works, we would be happy to help. As mentioned above, *
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# * we also offer alternative license to integrate Nmap into proprietary *
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# * applications and appliances. These contracts have been sold to dozens *
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# * of software vendors, and generally include a perpetual license as well *
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# * as providing for priority support and updates. They also fund the *
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# * continued development of Nmap. Please email sales@insecure.com for *
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# * further information. *
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# * *
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# * As a special exception to the GPL terms, Insecure.Com LLC grants *
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# * permission to link the code of this program with any version of the *
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# * OpenSSL library which is distributed under a license identical to that *
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# * listed in the included docs/licenses/OpenSSL.txt file, and distribute *
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# * linked combinations including the two. You must obey the GNU GPL in all *
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# * respects for all of the code used other than OpenSSL. If you modify *
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# * this file, you may extend this exception to your version of the file, *
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# * but you are not obligated to do so. *
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# * *
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# * If you received these files with a written license agreement or *
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# * contract stating terms other than the terms above, then that *
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# * alternative license agreement takes precedence over these comments. *
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# * *
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# * Source is provided to this software because we believe users have a *
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# * right to know exactly what a program is going to do before they run it. *
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# * This also allows you to audit the software for security holes (none *
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# * have been found so far). *
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# * *
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# * Source code also allows you to port Nmap to new platforms, fix bugs, *
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# * and add new features. You are highly encouraged to send your changes *
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# * to nmap-dev@insecure.org for possible incorporation into the main *
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# * distribution. By sending these changes to Fyodor or one of the *
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# * Insecure.Org development mailing lists, or checking them into the Nmap *
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# * source code repository, it is understood (unless you specify otherwise) *
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# * that you are offering the Nmap Project (Insecure.Com LLC) the *
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# * unlimited, non-exclusive right to reuse, modify, and relicense the *
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# * code. Nmap will always be available Open Source, but this is important *
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# * because the inability to relicense code has caused devastating problems *
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# * for other Free Software projects (such as KDE and NASM). We also *
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# * occasionally relicense the code to third parties as discussed above. *
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# * If you wish to specify special license conditions of your *
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# * contributions, just say so when you send them. *
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# * *
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# * This program is distributed in the hope that it will be useful, but *
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# * WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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# * General Public License v2.0 for more details at *
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# * http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file *
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# * included with Nmap. *
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# * *
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# ***************************************************************************/
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import datetime
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import os
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import subprocess
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import sys
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import tempfile
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import xml.sax
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from zenmapCore.Name import APP_NAME
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from zenmapCore.NmapParser import NmapParserSAX
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from zenmapCore.UmitConf import PathsConfig
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from zenmapCore.UmitLogging import log
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import zenmapCore.Paths
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# The [paths] configuration from zenmap.conf, used to get ndiff_command_path.
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paths_config = PathsConfig()
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class NdiffParseException(Exception):
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pass
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def get_path():
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"""Return a value for the PATH environment variable that is appropriate
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for the current platform. It will be the PATH from the environment plus
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possibly some platform-specific directories."""
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path_env = os.getenv("PATH")
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if path_env is None:
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search_paths = []
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else:
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search_paths = path_env.split(os.pathsep)
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for path in zenmapCore.Paths.get_extra_executable_search_paths():
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if path not in search_paths:
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search_paths.append(path)
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return os.pathsep.join(search_paths)
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class NdiffCommand(subprocess.Popen):
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def __init__(self, filename_a, filename_b, temporary_filenames = []):
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self.temporary_filenames = temporary_filenames
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search_paths = get_path()
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env = dict(os.environ)
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env["PATH"] = search_paths
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if getattr(sys, "frozen", None) == "macosx_app":
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# These variables are set by py2app, but they can interfere with
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# Ndiff because Ndiff is also a Python application. Without removing
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# these, Ndiff will attempt to run using the py2app-bundled Python
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# library, and may run into version or architecture mismatches.
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if env.has_key("PYTHONPATH"):
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del env["PYTHONPATH"]
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if env.has_key("PYTHONHOME"):
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del env["PYTHONHOME"]
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command_list = [paths_config.ndiff_command_path, "--verbose", "--", filename_a, filename_b]
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self.stdout_file = tempfile.TemporaryFile(mode = "rb", prefix = APP_NAME + "-ndiff-", suffix = ".xml")
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log.debug("Running command: %s" % repr(command_list))
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# See zenmapCore.NmapCommand.py for an explanation of the shell argument.
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subprocess.Popen.__init__(self, command_list, stdout = self.stdout_file, stderr = self.stdout_file, env = env, shell = (sys.platform == "win32"))
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def get_scan_diff(self):
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self.wait()
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self.stdout_file.seek(0)
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return self.stdout_file.read()
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def close(self):
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"""Clean up temporary files."""
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self.stdout_file.close()
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for filename in self.temporary_filenames:
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log.debug("Remove temporary diff file %s." % filename)
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os.remove(filename)
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self.temporary_filenames = []
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def kill(self):
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self.close()
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def ndiff(scan_a, scan_b):
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"""Run Ndiff on two scan results, which may be filenames or NmapParserSAX
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objects, and return a running NdiffCommand object."""
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temporary_filenames = []
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if isinstance(scan_a, NmapParserSAX):
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fd, filename_a = tempfile.mkstemp(prefix = APP_NAME + "-diff-", suffix = ".xml")
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temporary_filenames.append(filename_a)
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f = os.fdopen(fd, "wb")
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scan_a.write_xml(f)
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f.close()
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else:
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filename_a = scan_a
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if isinstance(scan_b, NmapParserSAX):
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fd, filename_b = tempfile.mkstemp(prefix = APP_NAME + "-diff-", suffix = ".xml")
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temporary_filenames.append(filename_b)
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f = os.fdopen(fd, "wb")
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scan_b.write_xml(f)
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f.close()
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else:
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filename_b = scan_b
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return NdiffCommand(filename_a, filename_b, temporary_filenames)
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