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#!/usr/bin/python
# Copyright 2013 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import base64
import optparse
import subprocess
import sys
parser = optparse.OptionParser()
parser.set_usage("%prog [options] [key]")
parser.add_option("-r", "--raw", dest="raw", default=False, action="store_true",
help="Encode just the base32 key, not an otpauth:// URL.")
parser.add_option("-n", "--name", dest="name",
help="Provide a name for this otpauth token.")
(options, args) = parser.parse_args()
if len(args) >= 2:
parser.print_help()
sys.exit(1)
elif len(args) == 1:
hexkey = args[0]
else:
print "Enter key: ",
hexkey = sys.stdin.readline().rstrip()
binkey = base64.b16decode(hexkey, True)
b32key = base64.b32encode(binkey)
if options.raw:
msg = b32key
else:
if options.name is None:
msg = "otpauth://totp/token?secret=%s"%(b32key,)
else:
msg = "otpauth://totp/%s?secret=%s"%(options.name, b32key)
p = subprocess.Popen(['qrencode', '-s', '10', '-o', '-'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
(out, dummy) = p.communicate(msg)
if p.returncode != 0:
raise Exception("qrencode failed.")
p = subprocess.Popen(['display'], stdin=subprocess.PIPE)
p.communicate(out)
if p.returncode != 0:
raise Exception("display failed.")
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