106 lines
3.3 KiB
Text
106 lines
3.3 KiB
Text
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#!/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: Send BTC from specified outputs 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 check_opts, msg, 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': "Send BTC from specified outputs to specified addresses",
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'usage': "[opts] <recipient 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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-q, --quiet Suppress warnings; overwrite files without asking
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"""
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}
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short_opts = "hd:eq"
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long_opts = "help","outdir=","echo_passphrase","quiet"
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opts,cmd_args = process_opts(sys.argv,help_data,short_opts,long_opts)
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# Exits on invalid input
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check_opts(opts, ('outdir',))
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if debug:
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print "Processed options: %s" % repr(opts)
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print "Cmd args: %s" % repr(cmd_args)
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if len(cmd_args) == 4:
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rcpt_addr,send_amt,tx_fee,change_addr = cmd_args
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check_address(change_addr)
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elif len(cmd_args) == 3:
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rcpt_addr,send_amt,tx_fee = cmd_args
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change_addr = ""
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else: usage(help_data)
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check_address(rcpt_addr)
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send_amt = check_btc_amt(send_amt)
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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: do_license_msg()
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unspent = sort_and_view(c.listunspent())
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total = remove_exponent(sum([i.amount for i in unspent]))
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msg("Total unspent: %s BTC" % total)
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msg("Amount to spend: %s BTC" % send_amt)
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msg("%s unspent outputs total" % len(unspent))
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sel_unspent = select_outputs(unspent,"Choose the outputs to spend: ")
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total_in = remove_exponent(sum([o.amount for o in sel_unspent]))
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change = remove_exponent(total_in - (send_amt + tx_fee))
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if change < 0:
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msg(txmsg['not_enough_btc'] % change)
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sys.exit(2)
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elif 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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tx_out = {rcpt_addr:float(send_amt), change_addr:float(change)}
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tx_hex = c.createrawtransaction(tx_in,tx_out)
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msg("Transaction successfully created\n")
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prompt = "View decoded transaction?"
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if user_confirm(prompt,default_yes=False):
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view_tx_data(c,[i.__dict__ for i in sel_unspent],tx_hex)
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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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