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d639a53088cda2d558b32e9176076c4975a7bb4c
nmap/zenmap/zenmapGUI/DiffCompare.py
dmiller d639a53088 Bump copyright date in license headers
2019-05-28 21:36:04 +00:00

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# ***********************IMPORTANT NMAP LICENSE TERMS************************
# * *
# * The Nmap Security Scanner is (C) 1996-2019 Insecure.Com LLC ("The Nmap *
# * Project"). Nmap is also a registered trademark of the Nmap Project. *
# * 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, the Nmap Project 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. *
# * *
# * The Nmap Project has permission to redistribute Npcap, a packet *
# * capturing driver and library for the Microsoft Windows platform. *
# * Npcap is a separate work with it's own license rather than this Nmap *
# * license. Since the Npcap license does not permit redistribution *
# * without special permission, our Nmap Windows binary packages which *
# * contain Npcap may not be redistributed without special permission. *
# * *
# * 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, we are happy to help. As mentioned above, we also *
# * offer an 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 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. *
# * *
# * 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 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) *
# * *
# ***************************************************************************/
import gobject
import gtk
import pango
import os
import os.path
import sys
# Prevent loading PyXML
import xml
xml.__path__ = [x for x in xml.__path__ if "_xmlplus" not in x]
import xml.sax
from zenmapGUI.higwidgets.higdialogs import HIGAlertDialog, HIGDialog
from zenmapGUI.higwidgets.higboxes import HIGVBox, HIGHBox, \
hig_box_space_holder
from zenmapGUI.higwidgets.higlabels import HIGSectionLabel
from zenmapGUI.higwidgets.higtables import HIGTable
from zenmapGUI.higwidgets.higbuttons import HIGButton
from zenmapCore.NmapParser import NmapParser
from zenmapCore.UmitLogging import log
import zenmapCore.I18N
import zenmapCore.Diff
from zenmapGUI.FileChoosers import ResultsFileSingleChooserDialog
# In milliseconds.
NDIFF_CHECK_TIMEOUT = 200
class ScanChooser(HIGVBox):
"""This class allows the selection of scan results from the list of open
tabs or from a file. It emits the "changed" signal when the scan selection
has changed."""
__gsignals__ = {
"changed": (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ())
}
def __init__(self, scans, title):
self.__gobject_init__()
self.title = title
self.scan_dict = {}
# Setting HIGVBox
self.set_border_width(5)
self.set_spacing(6)
self._create_widgets()
self._pack_hbox()
self._attaching_widgets()
self._set_scrolled()
self._set_text_view()
self._set_open_button()
for scan in scans:
self.add_scan(scan.scan_name or scan.get_nmap_command(), scan)
self.combo_scan.connect('changed', self.show_scan)
self.combo_scan.connect('changed', lambda x: self.emit('changed'))
self._pack_noexpand_nofill(self.lbl_scan)
self._pack_expand_fill(self.hbox)
def _create_widgets(self):
self.lbl_scan = HIGSectionLabel(self.title)
self.hbox = HIGHBox()
self.table = HIGTable()
self.list_scan = gtk.ListStore(str)
self.combo_scan = gtk.ComboBoxEntry(self.list_scan, 0)
self.btn_open_scan = gtk.Button(stock=gtk.STOCK_OPEN)
self.exp_scan = gtk.Expander(_("Scan Output"))
self.scrolled = gtk.ScrolledWindow()
self.txt_scan_result = gtk.TextView()
self.txg_tag = gtk.TextTag("scan_style")
def get_buffer(self):
return self.txt_scan_result.get_buffer()
def show_scan(self, widget):
nmap_output = self.get_nmap_output()
if nmap_output:
self.txt_scan_result.get_buffer().set_text(nmap_output)
def normalize_output(self, output):
return "\n".join(output.split("\\n"))
def _pack_hbox(self):
self.hbox._pack_noexpand_nofill(hig_box_space_holder())
self.hbox._pack_expand_fill(self.table)
def _attaching_widgets(self):
self.table.attach(self.combo_scan, 0, 1, 0, 1, yoptions=0)
self.table.attach(
self.btn_open_scan, 1, 2, 0, 1, yoptions=0, xoptions=0)
self.table.attach(self.exp_scan, 0, 2, 1, 2)
def _set_scrolled(self):
self.scrolled.set_border_width(5)
self.scrolled.set_size_request(-1, 130)
# Packing scrolled window into expander
self.exp_scan.add(self.scrolled)
# Packing text view into scrolled window
self.scrolled.add_with_viewport(self.txt_scan_result)
# Setting scrolled window
self.scrolled.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
def _set_text_view(self):
self.txg_table = self.txt_scan_result.get_buffer().get_tag_table()
self.txg_table.add(self.txg_tag)
self.txg_tag.set_property("family", "Monospace")
self.txt_scan_result.set_wrap_mode(gtk.WRAP_WORD)
self.txt_scan_result.set_editable(False)
self.txt_scan_result.get_buffer().connect(
"changed", self._text_changed_cb)
def _set_open_button(self):
self.btn_open_scan.connect('clicked', self.open_file)
def open_file(self, widget):
file_chooser = ResultsFileSingleChooserDialog(_("Select Scan Result"))
response = file_chooser.run()
file_chosen = file_chooser.get_filename()
file_chooser.destroy()
if response == gtk.RESPONSE_OK:
try:
parser = NmapParser()
parser.parse_file(file_chosen)
except xml.sax.SAXParseException as e:
alert = HIGAlertDialog(
message_format='<b>%s</b>' % _('Error parsing file'),
secondary_text=_(
"The file is not an Nmap XML output file. "
"The parsing error that occurred was\n%s") % str(e))
alert.run()
alert.destroy()
return False
except Exception as e:
alert = HIGAlertDialog(
message_format='<b>%s</b>' % _(
'Cannot open selected file'),
secondary_text=_("""\
This error occurred while trying to open the file:
%s""") % str(e))
alert.run()
alert.destroy()
return False
scan_name = os.path.split(file_chosen)[-1]
self.add_scan(scan_name, parser)
self.combo_scan.set_active(len(self.list_scan) - 1)
def add_scan(self, scan_name, parser):
scan_id = 1
new_scan_name = scan_name
while new_scan_name in self.scan_dict.keys():
new_scan_name = "%s (%s)" % (scan_name, scan_id)
scan_id += 1
self.list_scan.append([new_scan_name])
self.scan_dict[new_scan_name] = parser
def _text_changed_cb(self, widget):
buff = self.txt_scan_result.get_buffer()
buff.apply_tag(
self.txg_tag, buff.get_start_iter(), buff.get_end_iter())
def get_parsed_scan(self):
"""Return the currently selected scan's parsed output as an NmapParser
object, or None if no valid scan is selected."""
selected_scan = self.combo_scan.child.get_text()
return self.scan_dict.get(selected_scan)
def get_nmap_output(self):
"""Return the currently selected scan's output as a string, or None if
no valid scan is selected."""
if self.parsed_scan is not None:
return self.parsed_scan.get_nmap_output()
else:
return None
nmap_output = property(get_nmap_output)
parsed_scan = property(get_parsed_scan)
class DiffWindow(gtk.Window):
def __init__(self, scans):
gtk.Window.__init__(self)
self.set_title(_("Compare Results"))
self.ndiff_process = None
# We allow the user to start a new diff before the old one has
# finished. We have to keep references to old processes until they
# finish to avoid problems when tearing down the Python interpreter at
# program exit.
self.old_processes = []
self.timer_id = None
self.main_vbox = HIGVBox()
self.diff_view = DiffView()
self.diff_view.set_size_request(-1, 100)
self.hbox_buttons = HIGHBox()
self.progress = gtk.ProgressBar()
self.btn_close = HIGButton(stock=gtk.STOCK_CLOSE)
self.hbox_selection = HIGHBox()
self.scan_chooser_a = ScanChooser(scans, _(u"A Scan"))
self.scan_chooser_b = ScanChooser(scans, _(u"B Scan"))
self._pack_widgets()
self._connect_widgets()
self.set_default_size(-1, 500)
# Initial Size Request
self.initial_size = self.get_size()
def _pack_widgets(self):
self.main_vbox.set_border_width(6)
self.hbox_selection.pack_start(self.scan_chooser_a, True, True)
self.hbox_selection.pack_start(self.scan_chooser_b, True, True)
self.main_vbox.pack_start(self.hbox_selection, False)
scroll = gtk.ScrolledWindow()
scroll.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
scroll.add(self.diff_view)
self.main_vbox.pack_start(scroll, True, True)
self.progress.hide()
self.progress.set_no_show_all(True)
self.hbox_buttons.pack_start(self.progress, False)
self.hbox_buttons.pack_end(self.btn_close, False)
self.main_vbox._pack_noexpand_nofill(self.hbox_buttons)
self.add(self.main_vbox)
def _connect_widgets(self):
self.connect("delete-event", self.close)
self.btn_close.connect("clicked", self.close)
self.scan_chooser_a.connect('changed', self.refresh_diff)
self.scan_chooser_b.connect('changed', self.refresh_diff)
def refresh_diff(self, widget):
"""This method is called whenever the diff output might have changed,
such as when a different scan was selected in one of the choosers."""
log.debug("Refresh diff.")
if (self.ndiff_process is not None and
self.ndiff_process.poll() is None):
# Put this in the list of old processes we keep track of.
self.old_processes.append(self.ndiff_process)
self.ndiff_process = None
scan_a = self.scan_chooser_a.parsed_scan
scan_b = self.scan_chooser_b.parsed_scan
if scan_a is None or scan_b is None:
self.diff_view.clear()
else:
try:
self.ndiff_process = zenmapCore.Diff.ndiff(scan_a, scan_b)
except OSError as e:
alert = HIGAlertDialog(
message_format=_("Error running ndiff"),
secondary_text=_(
"There was an error running the ndiff program.\n\n"
) + str(e).decode(sys.getdefaultencoding(), "replace"))
alert.run()
alert.destroy()
else:
self.progress.show()
if self.timer_id is None:
self.timer_id = gobject.timeout_add(
NDIFF_CHECK_TIMEOUT, self.check_ndiff_process)
def check_ndiff_process(self):
"""Check if the ndiff subprocess is done and show the diff if it is.
Also remove any finished processes from the old process list."""
# Check if any old background processes have finished.
for p in self.old_processes[:]:
if p.poll() is not None:
p.close()
self.old_processes.remove(p)
if self.ndiff_process is not None:
# We're running the most recent scan. Check if it's done.
status = self.ndiff_process.poll()
if status is None:
# Keep calling this function on a timer until the process
# finishes.
self.progress.pulse()
return True
if status == 0 or status == 1:
# Successful completion.
try:
diff = self.ndiff_process.get_scan_diff()
except zenmapCore.Diff.NdiffParseException as e:
alert = HIGAlertDialog(
message_format=_("Error parsing ndiff output"),
secondary_text=str(e))
alert.run()
alert.destroy()
else:
self.diff_view.show_diff(diff)
else:
# Unsuccessful completion.
error_text = _(
"The ndiff process terminated with status code %d."
) % status
stderr = self.ndiff_process.stderr.read()
if len(stderr) > 0:
error_text += "\n\n" + stderr
alert = HIGAlertDialog(
message_format=_("Error running ndiff"),
secondary_text=error_text)
alert.run()
alert.destroy()
self.progress.hide()
self.ndiff_process.close()
self.ndiff_process = None
if len(self.old_processes) > 0:
# Keep calling this callback.
return True
else:
# All done.
self.timer_id = None
return False
def close(self, widget=None, extra=None):
self.destroy()
class DiffView(gtk.TextView):
REMOVE_COLOR = "#ffaaaa"
ADD_COLOR = "#ccffcc"
"""A widget displaying a zenmapCore.Diff.ScanDiff."""
def __init__(self):
gtk.TextView.__init__(self)
self.set_editable(False)
buff = self.get_buffer()
# Create text markup tags.
buff.create_tag("=", font="Monospace")
buff.create_tag(
"-", font="Monospace", background=self.REMOVE_COLOR)
buff.create_tag("+", font="Monospace", background=self.ADD_COLOR)
def clear(self):
self.get_buffer().set_text(u"")
def show_diff(self, diff):
self.clear()
buff = self.get_buffer()
for line in diff.splitlines(True):
if line.startswith("-"):
tags = ["-"]
elif line.startswith("+"):
tags = ["+"]
else:
tags = ["="]
buff.insert_with_tags_by_name(buff.get_end_iter(), line, *tags)
if __name__ == "__main__":
from zenmapCore.NmapParser import NmapParser
parsed1 = NmapParser()
parsed2 = NmapParser()
parsed3 = NmapParser()
parsed4 = NmapParser()
parsed1.parse_file("test/xml_test1.xml")
parsed2.parse_file("test/xml_test2.xml")
parsed3.parse_file("test/xml_test3.xml")
parsed4.parse_file("test/xml_test4.xml")
dw = DiffWindow({"Parsed 1": parsed1,
"Parsed 2": parsed2,
"Parsed 3": parsed3,
"Parsed 4": parsed4})
dw.show_all()
dw.connect("delete-event", lambda x, y: gtk.main_quit())
gtk.main()
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