156 lines
4.7 KiB
Python
Executable file
156 lines
4.7 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
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# Copyright (C) 2013 by philemon <mmgen-py@yandex.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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mmgen-txcreate: Create a BTC transaction, sending to specified addresses
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"""
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import sys
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#from hashlib import sha256
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from mmgen.Opts import *
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from mmgen.license import *
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from mmgen.config import *
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from mmgen.tx import *
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from mmgen.utils import msg, msg_r, user_confirm
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from decimal import Decimal
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prog_name = sys.argv[0].split("/")[-1]
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help_data = {
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'prog_name': prog_name,
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'desc': "Create a BTC transaction, sending to specified addresses",
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'usage': "[opts] <address:amount>[,...] <transaction fee> <change address>",
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'options': """
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-h, --help Print this help message
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-d, --outdir d Specify an alternate directory 'd' for output
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-e, --echo-passphrase Print passphrase to screen when typing it
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-i, --info Display unspent outputs and exit
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-q, --quiet Suppress warnings; overwrite files without
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prompting
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Outputs to spend are chosen by the user via a menu.
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Ages of transactions are approximate based on an average block discovery
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interval of %s minutes.
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""" % mins_per_block
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}
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short_opts = "hd:eiq"
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long_opts = "help","outdir=","echo_passphrase","info","quiet"
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opts,cmd_args = process_opts(sys.argv,help_data,short_opts,long_opts)
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check_opts(opts,long_opts)
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if debug: show_opts_and_cmd_args(opts,cmd_args)
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if len(cmd_args) == 3:
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rcpt_arg,tx_fee,change_addr = cmd_args
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check_address(change_addr)
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elif len(cmd_args) == 2:
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rcpt_arg,tx_fee = cmd_args
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change_addr = ""
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elif len(cmd_args) == 0 and 'info' in opts:
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pass
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else: usage(help_data)
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if not 'info' in opts:
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tx_out = make_tx_out(rcpt_arg)
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for i in tx_out.keys(): check_address(i)
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for i in tx_out.values(): check_btc_amt(i)
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tx_fee = check_btc_amt(tx_fee)
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# Begin execution
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c = connect_to_bitcoind()
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if not 'quiet' in opts and not 'info' in opts: do_license_msg(immed=True)
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# Begin test
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# import mmgen.rpc
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# us = eval(get_data_from_file("listunspent.json"))
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# End test
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us = c.listunspent()
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if not us:
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msg_r("""
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No spendable outputs found! Import addresses with balances into your
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watch-only wallet using 'mmgen-addrimport' and then re-run this program.
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""")
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sys.exit(2)
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# write_to_file("listunspent.json",repr(us))
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# sys.exit()
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unspent = sort_and_view(us)
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total = trim_exponent(sum([i.amount for i in unspent]))
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msg("Total unspent: %s BTC (%s outputs)" % (total, len(unspent)))
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if 'info' in opts: sys.exit(0)
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send_amt = sum(tx_out.values())
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msg("Total amount to spend: %s BTC" % send_amt)
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while True:
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sel_nums = select_outputs(unspent,
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"Enter a range or space-separated list of outputs to spend: ")
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msg("Selected outputs: %s" % " ".join(str(i) for i in sel_nums))
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sel_unspent = [unspent[i-1] for i in sel_nums]
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lbls = set([verify_mmgen_label(
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i.account,return_str=True,check_label_len=True)
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for i in sel_unspent])
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lbls.discard("")
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if lbls and len(lbls) < len(sel_unspent):
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msg(txmsg['mixed_inputs'] % ", ".join(sorted(lbls)))
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if not user_confirm("Accept?"):
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continue
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total_in = trim_exponent(sum([o.amount for o in sel_unspent]))
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change = trim_exponent(total_in - (send_amt + tx_fee))
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if change >= 0:
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prompt = "Transaction produces %s BTC in change. OK?" % change
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if user_confirm(prompt,default_yes=True):
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break
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else:
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msg(txmsg['not_enough_btc'] % change)
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if change > 0 and not change_addr:
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msg(txmsg['throwaway_change'] % (change, total_in-tx_fee))
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sys.exit(2)
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tx_in = [{"txid":i.txid, "vout":i.vout} for i in sel_unspent]
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for i in tx_out.keys(): tx_out[i] = float(tx_out[i])
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if change: tx_out[change_addr] = float(change)
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tx_hex = c.createrawtransaction(tx_in,tx_out)
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msg("Transaction successfully created")
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prompt = "View decoded transaction? (y)es, (N)o, (v)iew in pager"
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reply = prompt_and_get_char(prompt,"YyNnVv",enter_ok=True)
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if reply and reply in "YyVv":
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pager = True if reply in "Vv" else False
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view_tx_data(c,[i.__dict__ for i in sel_unspent],tx_hex,pager=pager)
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prompt = "Save transaction?"
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if user_confirm(prompt,default_yes=True):
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print_tx_to_file(tx_hex,sel_unspent,send_amt,opts)
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else:
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msg("Transaction not saved")
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