124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
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#! /usr/bin/env python
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# ineptkeymac.py, version 1
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# This program runs on Mac OS X, version 10.6.2 and probably several other
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# versions. It uses Python 2.6, but it probably also runs on all versions
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# 2.x with x >= 5.
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# This program extracts the private RSA key for your ADE account in a
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# standard binary form (DER format) in a file of your choosing. Its purpose
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# is to make a backup of that key so that your legally bought ADE encoded
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# ebooks can be salvaged in case they would no longer be supported by ADE
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# software. No other usages are intended.
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# It has been tested with the key storage structure of ADE 1.7.1 and 1.7.2
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# and Sony Reader Library.
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# This software does not contain any encryption code. Its only use of
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# external encryption software is the use of openssl for the conversion of
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# the private key from pem to der format. It doesn't use encryption or
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# decryption, however.
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# You can run this program from the command line (python ineptkeymac.py
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# filename), or by doubleclicking when it has been associated with
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# Pythonlauncher. When no filename is given it will show a dialog to obtain one.
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from __future__ import with_statement
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__license__ = 'GPL v3'
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import sys
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import os
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import xml.etree.ElementTree as etree
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from contextlib import closing
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import Tkinter
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import Tkconstants
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import tkFileDialog
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from tkMessageBox import showerror
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from subprocess import Popen, PIPE
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import textwrap
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NS = 'http://ns.adobe.com/adept'
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ACTFILE = '~/Library/Application Support/Adobe/Digital Editions/activation.dat'
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HEADER = '-----BEGIN PRIVATE KEY-----\n'
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FOOTER = '\n-----END PRIVATE KEY-----\n'
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Gui = False
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def get_key():
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'''Returns the private key as a binary string (DER format)'''
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try:
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filename = os.path.expanduser(ACTFILE)
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tree = etree.parse(filename)
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xpath = '//{%s}credentials/{%s}privateLicenseKey' % (NS, NS)
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b64key = tree.findtext(xpath)
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pemkey = HEADER + textwrap.fill(b64key, 64) + FOOTER
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cmd = ['openssl', 'rsa', '-outform', 'der']
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proc = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE)
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stdout, stderr = proc.communicate(pemkey)
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if proc.returncode != 0:
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error("openssl error: " + stderr)
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return None
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return stdout
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except IOError:
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error("Can find keyfile. Maybe you should activate your Adobe ID.")
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sys.exit(1)
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def store_key(key, keypath):
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'''Store the key in the file given as keypath. If no keypath is given a
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dialog will ask for one.'''
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try:
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if keypath is None:
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keypath = get_keypath()
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if not keypath: # Cancelled
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return
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with closing(open(keypath, 'wb')) as outf:
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outf.write(key)
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except IOError, e:
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error("Can write keyfile: " + str(e))
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def get_keypath():
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keypath = tkFileDialog.asksaveasfilename(
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parent = None, title = 'Select file to store ADEPT key',
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initialdir = os.path.expanduser('~/Desktop'),
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initialfile = 'adeptkey.der',
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defaultextension = '.der', filetypes = [('DER-encoded files', '.der'),
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('All Files', '.*')])
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if keypath:
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keypath = os.path.normpath(keypath)
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return keypath
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def error(text):
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print text
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if Gui: showerror('Error!', text)
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def gui_main():
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root = Tkinter.Tk()
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root.iconify()
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global Gui
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Gui = True
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store_key(get_key(), None)
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return 0
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def main(argv=sys.argv):
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progname = os.path.basename(argv[0])
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if len(argv) == 1: # assume GUI if no argument given
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return gui_main()
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if len(argv) != 2:
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print "usage: %s KEYFILE" % (progname,)
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return 1
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store_key(get_key(), argv[1])
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if __name__ == '__main__':
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sys.exit(main())
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