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#!/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/
# *
# ***************************************************************************/
# This prints the normal (text) output of a single scan. Ideas for further
# development:
#
# Print the topology graphic. The graphic is already made with Cairo so the
# same code can be used to draw on the print context.
#
# Print in color with highlighting, like NmapOutputViewer.
#
# Add a header to each page with the Nmap command and page number.
#
# Add options to the print dialog to control the font, coloring, and anything
# else. This might go in a separate Print Setup dialog.
import gi
gi.require_version("Gtk", "3.0")
gi.require_version("PangoCairo", "1.0")
from gi.repository import Gtk, GLib, Pango, PangoCairo
MONOSPACE_FONT_DESC = Pango.FontDescription("Monospace 12")
class PrintState(object):
"""This is the userdatum passed to Gtk.PrintOperation callbacks."""
def __init__(self, inventory, entry):
"""entry is a ScansListStoreEntry."""
if entry.parsed:
# Finished scan.
output = entry.parsed.nmap_output
else:
# Still running, failed, or cancelled.
output = entry.command.get_output()
if not output:
output = "\n"
self.lines = output.splitlines()
def begin_print(self, op, context):
"""Calculates the number of printed pages."""
# Typeset a dummy line to get the exact line height.
layout = context.create_pango_layout()
layout.set_font_description(MONOSPACE_FONT_DESC)
layout.set_text("dummy", -1)
line = layout.get_line(0)
# get_extents()[1].height is the height of the logical rectangle.
line_height = line.get_extents()[1].height / Pango.SCALE
page_height = context.get_height()
self.lines_per_page = int(page_height / line_height)
op.set_n_pages((len(self.lines) - 1) // self.lines_per_page + 1)
def draw_page(self, op, context, page_nr):
this_page_lines = self.lines[
page_nr * self.lines_per_page:
(page_nr + 1) * self.lines_per_page]
layout = context.create_pango_layout()
# Do no wrapping.
layout.set_width(-1)
layout.set_font_description(MONOSPACE_FONT_DESC)
text = "\n".join(this_page_lines)
layout.set_text(text, -1)
cr = context.get_cairo_context()
PangoCairo.show_layout(cr, layout)
def run_print_operation(inventory, entry):
op = Gtk.PrintOperation()
state = PrintState(inventory, entry)
op.connect("begin-print", state.begin_print)
op.connect("draw-page", state.draw_page)
try:
op.run(Gtk.PrintOperationAction.PRINT_DIALOG, None)
except GLib.GError:
# Canceling the print operation can result in the error
# GError: Error from StartDoc
# http://seclists.org/nmap-dev/2012/q4/161
pass
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