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- #!/usr/bin/env python
- #
- # mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
- # Copyright (C) 2013-2014 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
- import mmgen.config as g
- from mmgen.Opts import *
- from mmgen.license import *
- from mmgen.tx import *
- from mmgen.util import msg,qmsg
- help_data = {
- 'prog_name': g.prog_name,
- 'desc': "Sign Bitcoin transactions generated by {}-txcreate".format(g.proj_name.lower()),
- 'usage': "[opts] <transaction file> .. [mmgen wallet/seed/words/brainwallet file] .. [addrfile] ..",
- '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
- -I, --tx-id Display transaction ID and exit
- -k, --keys-from-file= f Provide additional keys for non-{pnm} addresses
- -K, --all-keys-from-file=f Like '-k', only use the keyfile as key source
- for ALL inputs, including {pnm} ones. Can be used
- for online signing without an {pnm} seed source.
- {pnm}-to-BTC mappings can optionally be verified
- using address file(s) listed on the command line
- -P, --passwd-file= f Get passphrase from file 'f'
- -q, --quiet Suppress warnings; overwrite files without
- prompting
- -V, --skip-key-preverify Skip optional key pre-verification step
- -b, --from-brain= l,p Generate keys from a user-created password,
- i.e. a "brainwallet", using seed length 'l' and
- hash preset 'p'
- -w, --use-wallet-dat Get keys from a running bitcoind
- -g, --from-incog Generate keys from an incognito wallet
- -X, --from-incog-hex Generate keys from an incognito hexadecimal wallet
- -G, --from-incog-hidden= f,o,l Generate keys from incognito data in file
- 'f' at offset 'o', with seed length of 'l'
- -m, --from-mnemonic Generate keys from an electrum-like mnemonic
- -s, --from-seed Generate keys from a seed in .{g.seed_ext} format
- """.format(g=g,pnm=g.proj_name),
- 'notes': """
- Transactions with either {pnm} or non-{pnm} input addresses may be signed.
- For non-{pnm} inputs, the bitcoind wallet.dat is used as the key source.
- For {pnm} inputs, key data is generated from your seed as with the
- {pnl}-addrgen and {pnl}-keygen utilities.
- Data for the --from-<what> options will be taken from a file if a second
- file is specified on the command line. Otherwise, the user will be
- prompted to enter the data.
- In cases of transactions with mixed {pnm} and non-{pnm} inputs, non-{pnm}
- keys must be supplied in a separate file (WIF format, one key per line)
- using the '--keys-from-file' option. Alternatively, one may get keys from
- a running bitcoind using the '--force-wallet-dat' option. First import the
- required {pnm} keys using 'bitcoind importprivkey'.
- For transaction outputs that are {pnm} addresses, {pnm}-to-Bitcoin address
- mappings are verified. Therefore, seed material for these addresses must
- be supplied on the command line (but see '--all-keys-from-file').
- Seed data supplied in files must have the following extensions:
- wallet: '.{g.wallet_ext}'
- seed: '.{g.seed_ext}'
- mnemonic: '.{g.mn_ext}'
- brainwallet: '.{g.brain_ext}'
- """.format(g=g,pnm=g.proj_name,pnl=g.proj_name.lower())
- }
- opts,infiles = parse_opts(sys.argv,help_data)
- for l in (
- ('tx_id', 'info'),
- ('keys_from_file','all_keys_from_file')
- ): check_incompatible_opts(opts,l)
- if "quiet" in opts: g.quiet = True
- if 'from_incog_hex' in opts or 'from_incog_hidden' in opts:
- opts['from_incog'] = True
- if 'all_keys_from_file' in opts:
- opts['keys_from_file'] = opts['all_keys_from_file']
- opts['skip_key_preverify'] = True
- if not infiles: usage(help_data)
- for i in infiles: check_infile(i)
- c = connect_to_bitcoind()
- saved_seeds = {}
- tx_files = [i for i in set(infiles) if get_extension(i) == g.rawtx_ext]
- addrfiles = [a for a in set(infiles) if get_extension(a) == g.addrfile_ext]
- infiles = list(set(infiles) - set(tx_files) - set(addrfiles))
- if not "info" in opts: do_license_msg(immed=True)
- if 'keys_from_file' in opts:
- keys_from_file = get_lines_from_file(opts['keys_from_file'],"key data",
- remove_comments=True)
- else: keys_from_file = []
- for tx_file in tx_files:
- m = "" if 'tx_id' in opts else "transaction data"
- tx_data = get_lines_from_file(tx_file,m)
- metadata,tx_hex,inputs_data,b2m_map = parse_tx_data(tx_data,tx_file)
- qmsg("Successfully opened transaction file '%s'" % tx_file)
- if 'tx_id' in opts:
- msg(metadata[0])
- sys.exit(0)
- if 'info' in opts:
- view_tx_data(c,inputs_data,tx_hex,b2m_map,metadata)
- sys.exit(0)
- # Are inputs mmgen addresses?
- mmgen_inputs = [i for i in inputs_data if parse_mmgen_label(i['account'])[0]]
- other_inputs = [i for i in inputs_data if not parse_mmgen_label(i['account'])[0]]
- if 'all_keys_from_file' in opts: other_inputs = inputs_data
- keys = keys_from_file
- if other_inputs and not keys and not 'use_wallet_dat' in opts:
- missing_keys_errormsg(other_inputs)
- sys.exit(2)
- if other_inputs and keys and not 'skip_key_preverify' in opts:
- a = [i['address'] for i in other_inputs]
- preverify_keys(a, keys)
- opts['skip_key_preverify'] = True
- if 'all_keys_from_file' in opts:
- if addrfiles:
- check_mmgen_to_btc_addr_mappings_addrfile(mmgen_inputs,b2m_map,addrfiles)
- else:
- confirm_or_exit(txmsg['skip_mapping_checks_warning'],"continue")
- else:
- check_mmgen_to_btc_addr_mappings(
- mmgen_inputs,b2m_map,infiles,saved_seeds,opts)
- if len(tx_files) > 1:
- msg("\nTransaction %s/%s:" % (tx_files.index(tx_file)+1,len(tx_files)))
- prompt = "View transaction data? (y)es, (N)o, (v)iew in pager"
- reply = prompt_and_get_char(prompt,"YyNnVv",enter_ok=True)
- if reply and reply in "YyVv":
- p = True if reply in "Vv" else False
- view_tx_data(c,inputs_data,tx_hex,b2m_map,metadata,pager=p)
- sig_data = [
- {"txid":i['txid'],"vout":i['vout'],"scriptPubKey":i['scriptPubKey']}
- for i in inputs_data]
- if mmgen_inputs and not 'all_keys_from_file' in opts:
- ml = [i['account'].split()[0] for i in mmgen_inputs]
- keys += get_keys_for_mmgen_addrs(ml,infiles,saved_seeds,opts)
- if 'use_wallet_dat' in opts:
- sig_tx = sign_tx_with_bitcoind_wallet(c,tx_hex,sig_data,keys,opts)
- else:
- sig_tx = sign_transaction(c,tx_hex,sig_data,keys)
- elif other_inputs:
- if keys:
- sig_tx = sign_transaction(c,tx_hex,sig_data,keys)
- else:
- sig_tx = sign_tx_with_bitcoind_wallet(c,tx_hex,sig_data,keys,opts)
- if sig_tx['complete']:
- prompt = "OK\nSave signed transaction?"
- if user_confirm(prompt,default_yes=True):
- outfile = "tx_%s[%s].%s" % (metadata[0],metadata[1],g.sigtx_ext)
- data = "{}\n{}\n{}\n{}\n".format(
- " ".join(metadata[:2] + [make_timestamp()]),
- sig_tx['hex'],
- repr(inputs_data),
- repr(b2m_map)
- )
- write_to_file(outfile,data,opts,"signed transaction",True,True)
- else:
- msg("failed\nSome keys were missing. Transaction could not be signed.")
- sys.exit(3)
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