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- #!/usr/bin/env python
- #
- # mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
- # Copyright (C) 2013 by philemon <mmgen-py@yandex.com>
- #
- # This program 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 3 of the License, or
- # (at your option) any later version.
- #
- # This program 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.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program. If not, see <http://www.gnu.org/licenses/>.
- """
- mmgen-txsign: Sign a Bitcoin transaction generated by mmgen-txcreate
- """
- import sys
- #from hashlib import sha256
- from mmgen.Opts import *
- from mmgen.license import *
- from mmgen.config import *
- from mmgen.tx import *
- from mmgen.utils import check_opts, msg, user_confirm, check_infile, get_lines_from_file, my_getpass, my_raw_input
- prog_name = sys.argv[0].split("/")[-1]
- help_data = {
- 'prog_name': prog_name,
- 'desc': "Sign a Bitcoin transaction generated by mmgen-txcreate",
- 'usage': "[opts] <transaction file>",
- 'options': """
- -h, --help Print this help message
- -d, --outdir d Specify an alternate directory 'd' for output
- -e, --echo-passphrase Print passphrase to screen when typing it
- -i, --info Display information about the transaction and exit
- -q, --quiet Suppress warnings; overwrite files without asking
- """
- }
- short_opts = "hd:eiq"
- long_opts = "help","outdir=","echo_passphrase","info","quiet"
- opts,cmd_args = process_opts(sys.argv,help_data,short_opts,long_opts)
- # Exits on invalid input
- check_opts(opts, ('outdir',))
- if debug:
- print "Processed options: %s" % repr(opts)
- print "Cmd args: %s" % repr(cmd_args)
- if len(cmd_args) == 1:
- infile = cmd_args[0]
- check_infile(infile)
- else: usage(help_data)
- # Begin execution
- c = connect_to_bitcoind()
- tx_data = get_lines_from_file(infile,"transaction data")
- metadata,tx_hex,sig_data,inputs_data = parse_tx_data(tx_data)
- if 'info' in opts:
- view_tx_data(c,inputs_data,tx_hex,metadata)
- sys.exit(0)
- if not 'quiet' in opts and not 'info' in opts: do_license_msg()
- msg("Successfully opened transaction file '%s'" % infile)
- if user_confirm("View transaction data? ",default_yes=False):
- view_tx_data(c,inputs_data,tx_hex,metadata)
- prompt = "Enter passphrase for bitcoind wallet: "
- if 'echo_passphrase' in opts:
- password = my_raw_input(prompt)
- else:
- password = my_getpass(prompt)
- wallet_enc = True
- from bitcoinrpc import exceptions
- try:
- c.walletpassphrase(password, 9999)
- except exceptions.WalletWrongEncState:
- msg("Wallet is unencrypted")
- wallet_enc = False
- except exceptions.WalletPassphraseIncorrect:
- msg("Passphrase incorrect")
- sys.exit(3)
- except exceptions.WalletAlreadyUnlocked:
- msg("WARNING: Wallet already unlocked!")
- else:
- msg("Passphrase OK")
- try:
- sig_tx = c.signrawtransaction(tx_hex,sig_data)
- # sig_tx = {'hex':"deadbeef0123456789ab",'complete':True}
- except:
- msg("Failed to sign transaction")
- if wallet_enc:
- c.walletlock()
- msg("Locking wallet")
- sys.exit(3)
- if wallet_enc:
- c.walletlock()
- msg("Locking wallet")
- if sig_tx['complete']:
- msg("Signing completed")
- else:
- msg("Signing failed: 'complete=%s'" % sig_tx['complete'])
- sys.exit(3)
- prompt = "Save signed transaction?"
- if user_confirm(prompt,default_yes=True):
- print_signed_tx_to_file(tx_hex,sig_tx['hex'],metadata,opts)
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