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‎.gitignore

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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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*$py.class
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# C extensions
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*.so
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# Distribution / packaging
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.Python
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env/
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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*.egg-info/
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.installed.cfg
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*.egg
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# PyInstaller
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# Usually these files are written by a python script from a template
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# before PyInstaller builds the exe, so as to inject date/other infos into it.
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*.manifest
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*.spec
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# Installer logs
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pip-log.txt
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pip-delete-this-directory.txt
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# Unit test / coverage reports
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htmlcov/
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.tox/
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.coverage
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.coverage.*
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.cache
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nosetests.xml
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coverage.xml
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*,cover
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# Translations
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*.mo
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*.pot
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# Django stuff:
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*.log
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# Sphinx documentation
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docs/_build/
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# PyBuilder
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target/

‎COPYING

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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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Version 2, December 2004
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Copyright (C) 2004 Sam Hocevar <[email protected]>
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Everyone is permitted to copy and distribute verbatim or modified
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copies of this license document, and changing it is allowed as long
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as the name is changed.
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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. You just DO WHAT THE FUCK YOU WANT TO.

‎MANIFEST.in

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include README.rst

‎README.rst

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=======
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Vncdesk
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=======
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*Vncdesk* was originally developed for scaling up applications on high DPI
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screens. Applications run in VNC desktops.
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Installation
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============
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Install dependencies:
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* Python 3
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* TigerVNC_ 1.4 or a compatible VNC server
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* gtk-vnc_ 0.5 or compatible
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Run with sufficient permissions::
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python setup.py install
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Usage
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=====
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Configuration for each desktop goes into a numbered directory below
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``~/.vncdesk``. For example the configuration in ``~/.vncdesk/2/`` can be run
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with::
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vncdesk 2
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Files:
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* ``settings.ini``, by example::
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[desktop]
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width = 1024
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height = 768
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* ``startup``: Startup script. Environment variables provided:
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- ``WIDTH``, ``HEIGHT``: Desktop size.
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- ``DISPLAY``: Display of the VNC server.
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- ``GUEST_DISPLAY``: Display of the VNC client.
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Example::
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#!/bin/sh
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xrdb -merge Xresources
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exec xfig -geometry ${WIDTH}x$HEIGHT+0+0
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* Application specific files, for example ``Xresources``::
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xfig*image_editor: DISPLAY=$GUEST_DISPLAY xdg-open
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xfig*pdfviewer: DISPLAY=$GUEST_DISPLAY xdg-open
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xfig*browser: DISPLAY=$GUEST_DISPLAY xdg-open
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* ``.password``: Generated every time anew, to password protect the connection
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also from other users on the same system.
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GDK 3 can scale the VNC viewer::
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GDK_SCALE=2
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Releasing a new version
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=======================
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* Use versioning scheme: `major.minor.patch`_
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* Tag version in Git.
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Coding convertions
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==================
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* Maximum line length: 80 characters
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* Comments in reStructuredText.
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License
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=======
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Except where noted otherwise, files are licensed under the WTFPL.
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Copyright © 2015 `Felix E. Klee <mailto:[email protected]>`
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This work is free. You can redistribute it and/or modify it under the terms of
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the Do What The Fuck You Want To Public License, Version 2, as published by Sam
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Hocevar. See the COPYING file for more details.
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.. _TigerVNC: http://tigervnc.org/
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.. _major.minor.patch: http://semver.org/
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.. _gtk-vnc: https://wiki.gnome.org/Projects/gtk-vnc

‎bin/vncdesk

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#!/usr/bin/python
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import vncdesk
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vncdesk.main()

‎setup.py

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from distutils.core import setup
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setup(
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name = "vncdesk",
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version = "1.0.0",
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author = "Felix E. Klee",
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author_email = "[email protected]",
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url = "https://github.com/feklee/vncdesk",
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packages = ["vncdesk"],
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scripts = ["bin/vncdesk"],
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license = "WTFPL",
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description = "Runs applications via VNC. Allows scaling applications.",
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long_description = open('README.rst').read()
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)

‎vncdesk/__init__.py

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from vncdesk.main import main

‎vncdesk/main.py

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#!/usr/bin/python
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from gi.repository import Gtk
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from gi.repository import Gdk
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from gi.repository import GtkVnc
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from vncdesk import vnc_server
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from sys import argv
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from vncdesk.util import exit_on_error
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def vnc_initialized(src, window):
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print("Connection initialized")
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window.show_all()
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window.set_size_request(vnc_server.width, vnc_server.height)
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window.set_resizable(False)
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def quit_all(widget = None):
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vnc_server.terminate()
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Gtk.main_quit()
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def vnc_disconnected(src):
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print("Disconnected from server")
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quit_all()
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def exit_with_usage():
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exit_on_error("Usage: " + argv[0] + " NUMBER")
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def read_cmd_line():
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if len(argv) != 2:
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exit_with_usage()
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try:
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return int(argv[1])
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except ValueError:
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exit_with_usage()
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def main():
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vnc_server.start(read_cmd_line())
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window = Gtk.Window()
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vnc = GtkVnc.Display()
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window.add(vnc)
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window.connect("destroy", quit_all)
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vnc.realize()
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vnc.set_pointer_local(False)
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vnc.set_credential(GtkVnc.DisplayCredential.PASSWORD, vnc_server.password)
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vnc.open_host("localhost", str(vnc_server.port))
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vnc.connect("vnc-initialized", vnc_initialized, window)
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vnc.connect("vnc-disconnected", vnc_disconnected)
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Gtk.main()

‎vncdesk/util.py

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from sys import exit, stderr
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def exit_on_error(msg):
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stderr.write(msg + "\n")
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exit(1)

‎vncdesk/vnc_server.py

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from os import path, environ, kill, system, chdir, access, X_OK
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import string
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import signal
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from time import sleep
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import uuid
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import threading
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import configparser
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from vncdesk.util import exit_on_error
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def read_settings():
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global width, height
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try:
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config = configparser.ConfigParser()
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config.read('settings.ini')
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width = int(config['desktop']['width'])
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height = int(config['desktop']['height'])
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except:
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exit_on_error("Cannot read settings or settings are corrupt")
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def set_environ():
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global _display, width, height
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environ["WIDTH"] = str(width)
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environ["HEIGHT"] = str(height)
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environ["GUEST_DISPLAY"] = environ["DISPLAY"]
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environ["DISPLAY"] = _display
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def terminate():
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global _xvnc_lock_filename
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if path.isfile(_xvnc_lock_filename):
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pid = int(open(_xvnc_lock_filename, 'r').read())
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kill(pid, signal.SIGTERM)
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def wait_for_xvnc():
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while not path.isfile(_xvnc_lock_filename):
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sleep(0.1)
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def start_xvnc():
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global _display, width, height, _number, port
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port = 5900 + _number
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cmd = " ".join(["Xvnc",
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_display,
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"-desktop xfig",
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"-geometry " + str(width) + "x" + str(height),
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"-rfbauth " + _password_filename,
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"-rfbport " + str(port),
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"-pn",
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"&"])
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terminate()
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system(cmd)
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wait_for_xvnc()
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def write_password_to_file():
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global _password_filename
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_password_filename = ".passwd"
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cmd = ";".join([
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"rm -f " + _password_filename,
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"umask 177",
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"|".join([
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"echo '" + password + "'",
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"vncpasswd -f >" + _password_filename
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])
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])
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system(cmd)
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def create_password():
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global password
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password = str(uuid.uuid4())
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write_password_to_file()
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def check_startup(filename):
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if not path.isfile(filename) or not access(filename, X_OK):
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exit_on_error("Cannot find executable startup script")
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def startup(filename):
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set_environ()
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check_startup(filename)
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system(filename)
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terminate()
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quit()
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def run_startup():
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filename = "./startup"
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check_startup(filename)
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t1 = threading.Thread(target = startup, args=(filename,))
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t1.start()
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def configure_xvnc():
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global _number
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system("vncconfig -nowin -display=:" + str(_number) + " &")
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def change_to_configuration_dir():
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global _number
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dirname = path.join(environ["HOME"], ".vncdesk", str(_number))
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try:
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chdir(dirname)
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except:
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exit_on_error("Cannot access directory " + dirname)
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def start(number):
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global _number, _display, _xvnc_lock_filename
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_number = number
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_display = ':' + str(_number)
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_xvnc_lock_filename = "/tmp/.X" + str(_number) + "-lock"
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change_to_configuration_dir()
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read_settings()
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create_password()
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start_xvnc()
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configure_xvnc()
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run_startup()

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