copytag.py

#!/usr/bin/python

#  copytag.py - read all sectors from a standard tag and write them back 
#               to a blank
# 
#  Adam Laurie <adam@algroup.co.uk>
#  http://rfidiot.org/
# 
#  This code is copyright (c) Adam Laurie, 2006, All rights reserved.
#  For non-commercial use only, the following terms apply - for all other
#  uses, please contact the author:
#
#    This code is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This code 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.  See the
#    GNU General Public License for more details.
#


import rfidiot
import sys
import os
import string

try:
        card= rfidiot.card
except:
	print "Couldn't open reader!"
        os._exit(True)

card.info('copytag v0.1d')
card.select()
print '\nID: ' + card.uid
print '  Reading:'

buffer= []

card.select()
for x in range(98):
	if card.readblock(x):
		print '    Block %02x: %s\r' % (x , card.data),
		sys.stdout.flush()
		buffer.append(card.data)		
	else:
		if x == 0:
			print 'Read error: ', card.ISO7816ErrorCodes[card.errorcode]
		break

if x > 0:
	print '\nRead %d blocks' % x
	raw_input('Remove source tag and hit <CR> to continue...')
	targettype= card.tagtype	
	while 42:
		card.waitfortag('Waiting for blank tag...')
		print 'ID: ' + card.uid
		if card.tagtype != targettype:
			raw_input('Invalid tag type! Hit <CR> to continue...')
			continue
		if not card.readblock(0):
			raw_input('Tag not readable! Hit <CR> to continue...')
			continue
		if len(card.data) != len(buffer[0]):
			print 'Wrong blocksize! (%d / %d)' % (len(buffer[0]),len(card.data)),
			raw_input(' Hit <CR> to continue...')
			continue
		if string.upper(raw_input('*** Warning! Data will be overwritten! Continue (y/n)?')) == 'Y':
			break
		else:
			os._exit(False)
	print '  Writing:'
	for n in range(x):
		print '    Block %02x: %s\r' % (n , buffer[n]),
		sys.stdout.flush()
		if not card.writeblock(n, buffer[n]):
			print '\nWrite failed!'
	print '\n  Verifying:'
	for n in range(x):
		print '    Block %02x: %s' % (n , buffer[n]),
		if not card.readblock(n) or card.data != buffer[n]:
			print '\nVerify failed!'
			os._exit(True)
		print ' OK\r',
		sys.stdout.flush()
	print
	os._exit(False)
else:
	print 'No data!'
	os._exit(True)