jaseg

This is old!

Hey there,

occassionally, people still seem to stumble across this script because it seems it shows up in some search results. Please be aware that I made this script ten years ago, and by now, there is probably a better way to achieve the same result.

Have a nice day!

jaseg

Windows XP as your screensaver!

Overview

When xscreensaver starts screen saving, instead of a boring screen saver it spawns a small shell script. This shell script starts a new X server with a very minimal awesome window manager and unfreezes a kvm virtual machine containing a Windows XP on that X server, ready to be used by any passersby. To unlock the screen, you need to switch back to the VT where your usual X is running. As soon as the screen is unlocked, xscreensaver sends a SIGTERM to the shell script which in turn stops all the X servers, window managers and virtual machines it launched and resets the VM image. Should the VM exit before the screen is unlocked because somebody pressed "Shut down" the VM image is reset and the VM restarted.

Setup

jaseg

#!/usr/bin/env python3
import ctypes

import gi

gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, GLib

gi.require_version('GL', '1.0')
from OpenGL import GL, GLX

jaseg

#!/bin/bash

user="crlf"

function irccmd {
	echo -e "$1\r" >&3
}

function send_message {
	if [ -n "$2" ]; then

jaseg

Prelude

Since password managers are big and complicated and I currently am pretty bored since I am sitting in a car for a few hours, here is a simple algorithm to generate resource-specific, unique passwords using a master password and no password database.

WARNING

As pointed out here: http://news.ycombinator.com/item?id=4374888 this method is broken.

Usage

jaseg

#!/usr/bin/env python3
import numpy as np
from math import sin, cos, pi, sqrt
import svgwrite
import itertools

def cam(f):
	""" Returns a camera matrix for the given focal length """
	return np.array(((1,0,0,0),
					 (0,1,0,0),

jaseg

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import re

pinyinToneMarks = {
    u'a': u'āáǎà', u'e': u'ēéěè', u'i': u'īíǐì',
    u'o': u'ōóǒò', u'u': u'ūúǔù', u'ü': u'ǖǘǚǜ',
    u'A': u'ĀÁǍÀ', u'E': u'ĒÉĚÈ', u'I': u'ĪÍǏÌ',
    u'O': u'ŌÓǑÒ', u'U': u'ŪÚǓÙ', u'Ü': u'ǕǗǙǛ'
}

jaseg

#!/usr/bin/env python3
# coding: utf-8

import csv
import argparse

avm_xml_template = '''<?xml version="1.0" encoding="utf-8"?>
<phonebooks>
<phonebook>
{entries}

jaseg

What is still missing

• mullvad-up.sh as called from openvpn.conf would be unnecessary if openvpn would fork after setting up the tun interface, for then its contents could be realized with a few systemd ExecStartPost-directives.
• Some means of automatically detecting and stopping/reconnecting a broken connection would be nice.
• Due to libcurl being buggy, transmission-daemon leaks DNS requests. I don't mind, if you do, consider using a couple of iptables rules to route any packets coming from transmission's UID through a special routing table.

jaseg

# Modified cd that also displays the directory's contents if the listing is less than 5 lines long
function cd
        if test -n "$argv"
                if test -e $argv -a ! -d (realpath $argv)
                        set argv (dirname $argv)
                end
        end
        builtin cd $argv
        and test (ls -C -w $COLUMNS |wc -l) -le 5; and ls
end