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Diffstat (limited to 'zenmap/zenmapGUI/Print.py')
| -rw-r--r-- | zenmap/zenmapGUI/Print.py | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/zenmap/zenmapGUI/Print.py b/zenmap/zenmapGUI/Print.py new file mode 100644 index 0000000..a6b2f2f --- /dev/null +++ b/zenmap/zenmapGUI/Print.py @@ -0,0 +1,135 @@ +#!/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 |