kamawanu

#!/bin/bash

HOST=$(hostname)

function install_postfix() {
echo | sudo debconf-set-selections <<__EOF
postfix	postfix/root_address	string	
postfix	postfix/rfc1035_violation	boolean	false
postfix	postfix/mydomain_warning	boolean	
postfix	postfix/mynetworks	string	127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128

kamawanu

#!python
# -*- coding: utf-8 -*-

import sys, unicodedata, logging, re, os.path

basepath = os.path.dirname( sys.argv[0] )

sys.path.append( os.path.join( basepath, "pyexcelerator-0.6.4.1.zip") ) # http://sourceforge.net/projects/pyexcelerator/

import pyExcelerator

kamawanu

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

def grep_packages(grep_word)
  package_list      = `adb shell pm list package`
  grep_package_list = package_list.split(/\s+/).map { |line| line.sub(/^package:/, '') }.select { |line| line.include?(grep_word) }

  if grep_package_list.size == 1
    return grep_package_list[0]
  elsif grep_package_list.size > 1

kamawanu

"""
Dependencies:

    pip install tabulate simplejson python-cjson ujson yajl msgpack-python

"""

from timeit import timeit 
from tabulate import tabulate

kamawanu

./android list sdk --all

./android update sdk --no-ui --all --filter 87,81,1,2,3,82,tool,platform-tool

kamawanu

Principles of Adult Behavior

1. Be patient. No matter what.
2. Don’t badmouth: Assign responsibility, not blame. Say nothing of another you wouldn’t say to him.
3. Never assume the motives of others are, to them, less noble than yours are to you.
4. Expand your sense of the possible.
5. Don’t trouble yourself with matters you truly cannot change.
6. Expect no more of anyone than you can deliver yourself.
7. Tolerate ambiguity.
8. Laugh at yourself frequently.

kamawanu

sudo apt install python3-pip
sudo pip3 install ariblib

kamawanu

# -o- coding: utf-8 -o-
# ISO3166 python dict 
# oficial list in http://www.iso.org/iso/iso_3166_code_lists

ISO3166 = {
	'AF': 'AFGHANISTAN',
	'AX': 'ÅLAND ISLANDS',
	'AL': 'ALBANIA',
	'DZ': 'ALGERIA',
	'AS': 'AMERICAN SAMOA',

kamawanu

kamawanu

Controlling the Brother P-Touch Cube label maker from a computer

The Brother PTP300BT label maker is intended to be controlled using the official Brother P-Touch Design & Print iOS/Android app. The app has arbitrary limits on what you can print (1 text object and up to 3 preset icons), so I thought it would be a fun challenge to reverse engineer the protocol to print whatever I wanted.

Python code at the bottom if you want to skip the fine details.

Process

Intitially I had a quick peek at the Android APK to see if there was any useful information inside. The code that handles the communication with the printer in Print&Design turned out to be a native library, but the app clearly prepares a bitmap image and passes it to this native library for printing. Bitmaps are definitely something we can work with.