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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:42:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:42:04 +0000 |
commit | 0d47952611198ef6b1163f366dc03922d20b1475 (patch) | |
tree | 3d840a3b8c0daef0754707bfb9f5e873b6b1ac13 /zenmap/zenmapCore/Diff.py | |
parent | Initial commit. (diff) | |
download | nmap-0d47952611198ef6b1163f366dc03922d20b1475.tar.xz nmap-0d47952611198ef6b1163f366dc03922d20b1475.zip |
Adding upstream version 7.94+git20230807.3be01efb1+dfsg.upstream/7.94+git20230807.3be01efb1+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'zenmap/zenmapCore/Diff.py')
-rw-r--r-- | zenmap/zenmapCore/Diff.py | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/zenmap/zenmapCore/Diff.py b/zenmap/zenmapCore/Diff.py new file mode 100644 index 0000000..44f1271 --- /dev/null +++ b/zenmap/zenmapCore/Diff.py @@ -0,0 +1,187 @@ +#!/usr/bin/env python3 + +# ***********************IMPORTANT NMAP LICENSE TERMS************************ +# * +# * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap +# * Project"). Nmap is also a registered trademark of the Nmap Project. +# * +# * This program is distributed under the terms of the Nmap Public Source +# * License (NPSL). The exact license text applying to a particular Nmap +# * release or source code control revision is contained in the LICENSE +# * file distributed with that version of Nmap or source code control +# * revision. More Nmap copyright/legal information is available from +# * https://nmap.org/book/man-legal.html, and further information on the +# * NPSL license itself can be found at https://nmap.org/npsl/ . This +# * header summarizes some key points from the Nmap license, but is no +# * substitute for the actual license text. +# * +# * Nmap is generally free for end users to download and use themselves, +# * including commercial use. It is available from https://nmap.org. +# * +# * The Nmap license generally prohibits companies from using and +# * redistributing Nmap in commercial products, but we sell a special Nmap +# * OEM Edition with a more permissive license and special features for +# * this purpose. See https://nmap.org/oem/ +# * +# * If you have received a written Nmap license agreement or contract +# * stating terms other than these (such as an Nmap OEM license), you may +# * choose to use and redistribute Nmap under those terms instead. +# * +# * The official Nmap Windows builds include the Npcap software +# * (https://npcap.com) for packet capture and transmission. It is under +# * separate license terms which forbid redistribution without special +# * permission. So the official Nmap Windows builds may not be redistributed +# * without special permission (such as an Nmap OEM license). +# * +# * 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. +# * +# * Source code also allows you to port Nmap to new platforms, fix bugs, and add +# * new features. You are highly encouraged to submit your changes as a Github PR +# * or by email to the dev@nmap.org mailing list for possible incorporation into +# * the main distribution. Unless you specify otherwise, it is understood that +# * you are offering us very broad rights to use your submissions as described in +# * the Nmap Public Source License Contributor Agreement. This is important +# * because we fund the project by selling licenses with various terms, and also +# * because the inability to relicense code has caused devastating problems for +# * other Free Software projects (such as KDE and NASM). +# * +# * The free version of Nmap 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. Warranties, +# * indemnification and commercial support are all available through the +# * Npcap OEM program--see https://nmap.org/oem/ +# * +# ***************************************************************************/ + +import os +import subprocess +import sys +import tempfile +# Prevent loading PyXML +import xml +xml.__path__ = [x for x in xml.__path__ if "_xmlplus" not in x] + +import xml.sax + +from zenmapCore.Name import APP_NAME +from zenmapCore.NmapParser import NmapParserSAX +from zenmapCore.UmitConf import PathsConfig +from zenmapCore.UmitLogging import log +import zenmapCore.Paths + +# The [paths] configuration from zenmap.conf, used to get ndiff_command_path. +paths_config = PathsConfig() + + +class NdiffParseException(Exception): + pass + + +def get_path(): + """Return a value for the PATH environment variable that is appropriate + for the current platform. It will be the PATH from the environment plus + possibly some platform-specific directories.""" + path_env = os.getenv("PATH") + if path_env is None: + search_paths = [] + else: + search_paths = path_env.split(os.pathsep) + for path in zenmapCore.Paths.get_extra_executable_search_paths(): + if path not in search_paths: + search_paths.append(path) + return os.pathsep.join(search_paths) + + +class NdiffCommand(subprocess.Popen): + def __init__(self, filename_a, filename_b, temporary_filenames=[]): + self.temporary_filenames = temporary_filenames + + search_paths = get_path() + env = dict(os.environ) + env["PATH"] = search_paths + if "Zenmap.app" in sys.executable: + # These vars are set by the launcher, but they can interfere with + # Ndiff because Ndiff is also a Python application. Without + # removing these, Ndiff will attempt to run using the + # bundled Python library, and may run into version or + # architecture mismatches. + if "PYTHONPATH" in env: + del env["PYTHONPATH"] + if "PYTHONHOME" in env: + del env["PYTHONHOME"] + + command_list = [ + paths_config.ndiff_command_path, + "--verbose", + "--", + filename_a, + filename_b + ] + self.stdout_file = tempfile.TemporaryFile( + mode="r", + prefix=APP_NAME + "-ndiff-", + suffix=".xml" + ) + + log.debug("Running command: %s" % repr(command_list)) + # shell argument explained in zenmapCore.NmapCommand.py + subprocess.Popen.__init__( + self, + command_list, + universal_newlines=True, + stdout=self.stdout_file, + stderr=self.stdout_file, + env=env, + shell=(sys.platform == "win32") + ) + + def get_scan_diff(self): + self.wait() + self.stdout_file.seek(0) + + return self.stdout_file.read() + + def close(self): + """Clean up temporary files.""" + self.stdout_file.close() + for filename in self.temporary_filenames: + log.debug("Remove temporary diff file %s." % filename) + os.remove(filename) + self.temporary_filenames = [] + + def kill(self): + self.close() + + +def ndiff(scan_a, scan_b): + """Run Ndiff on two scan results, which may be filenames or NmapParserSAX + objects, and return a running NdiffCommand object.""" + temporary_filenames = [] + + if isinstance(scan_a, NmapParserSAX): + fd, filename_a = tempfile.mkstemp( + prefix=APP_NAME + "-diff-", + suffix=".xml" + ) + temporary_filenames.append(filename_a) + f = os.fdopen(fd, "w") + scan_a.write_xml(f) + f.close() + else: + filename_a = scan_a + + if isinstance(scan_b, NmapParserSAX): + fd, filename_b = tempfile.mkstemp( + prefix=APP_NAME + "-diff-", + suffix=".xml" + ) + temporary_filenames.append(filename_b) + f = os.fdopen(fd, "w") + scan_b.write_xml(f) + f.close() + else: + filename_b = scan_b + + return NdiffCommand(filename_a, filename_b, temporary_filenames) |