support for multisig functions
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electrum
58
electrum
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@ -91,6 +91,10 @@ options:\n --fee, -f: set transaction fee\n --fromaddr, -s: send from address
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'unfreeze':'',
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'prioritize':'',
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'unprioritize':'',
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'createmultisig':'similar to bitcoind\'s command',
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'createrawtransaction':'similar to bitcoind\'s command',
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'decoderawtransaction':'similar to bitcoind\'s command',
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'signrawtransaction':'similar to bitcoind\'s command',
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}
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@ -103,10 +107,12 @@ offline_commands = [ 'password', 'mktx', 'signtx',
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'importprivkey', 'seed',
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'deseed','reseed',
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'freeze','unfreeze',
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'prioritize','unprioritize']
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'prioritize','unprioritize',
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'createmultisig', 'createrawtransaction', 'decoderawtransaction', 'signrawtransaction'
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]
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protected_commands = ['payto', 'password', 'mktx', 'signtx', 'seed', 'importprivkey','signmessage' ]
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protected_commands = ['payto', 'password', 'mktx', 'signtx', 'seed', 'importprivkey','signmessage', 'signrawtransaction' ]
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# get password routine
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def prompt_password(prompt, confirm=True):
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@ -690,5 +696,53 @@ if __name__ == '__main__':
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print_msg(wallet.unprioritize(addr))
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elif cmd == 'createmultisig':
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import ast
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from lib.bitcoin import *
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num = int(args[1])
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pubkeys = ast.literal_eval(args[2])
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assert isinstance(pubkeys,list)
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s = multisig_script(pubkeys, num)
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out = { "address": hash_160_to_bc_address(hash_160(s.decode('hex')), 5), "redeemScript":s }
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print_json(out)
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elif cmd == 'createrawtransaction':
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import ast
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inputs = ast.literal_eval(args[1])
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outputs = ast.literal_eval(args[2])
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inputs = map(lambda x: (None, None, x["txid"], x["vout"], None, None), inputs)
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outputs = map(lambda x: (x[0],int(x[1]*1e8)), outputs.items())
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tx = raw_tx(inputs, outputs, for_sig = -1) # for_sig=-1 means do not sign
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print_msg( tx )
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elif cmd == 'decoderawtransaction':
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print_json( bitcoin.deserialize(args[1]) )
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elif cmd == 'signrawtransaction':
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d = bitcoin.deserialize(args[1])
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txouts = args[2] if len(args)>2 else []
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private_keys = args[3] if len(args)>3 else []
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inputs = []
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for x in d['inputs']:
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txid = x["prevout_hash"]
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nout = x["prevout_n"]
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tx = wallet.transactions.get(txid)
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txout = tx['outputs'][nout]
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addr = txout['address']
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v = txout['value']
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inputs.append( (addr, v, txid, nout, txout['raw_output_script'], [(None,None)] ) )
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outputs = map(lambda x: (x['address'],x['value']), d['outputs'])
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print_error("inputs", inputs)
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print_error("outputs", outputs)
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tx = wallet.signed_tx( inputs, outputs, password )
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print_msg(tx)
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if cmd not in offline_commands and not options.offline:
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synchronizer.stop()
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@ -1,5 +1,5 @@
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from version import ELECTRUM_VERSION
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from util import format_satoshis, print_msg, print_error, set_verbosity
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from util import format_satoshis, print_msg, print_json, print_error, set_verbosity
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from i18n import set_language
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from wallet import WalletSynchronizer
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from wallet_factory import WalletFactory as Wallet
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@ -378,14 +378,33 @@ def raw_tx( inputs, outputs, for_sig = None ):
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s += var_int( len(tx_filter(script))/2 ) # script length
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s += script # script
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s += int_to_hex(0,4) # lock time
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if for_sig is not None: s += int_to_hex(1, 4) # hash type
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if for_sig is not None and for_sig != 1: s += int_to_hex(1, 4) # hash type
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return tx_filter(s)
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def multisig_script(public_keys):
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def deserialize(raw_tx):
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import deserialize
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vds = deserialize.BCDataStream()
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vds.write(raw_tx.decode('hex'))
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return deserialize.parse_Transaction(vds)
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def multisig_script(public_keys, num=None):
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# supports only "2 of 2", and "2 of 3" transactions
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n = len(public_keys)
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s = '52'
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if num is None:
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num = n
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assert num <= n and n <= 3 and n >= 2
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if num==2:
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s = '52'
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elif num == 3:
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s = '53'
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else:
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raise
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for k in public_keys:
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s += var_int(len(k)/2)
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s += k
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@ -22,6 +22,12 @@ def print_msg(*args):
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sys.stdout.write(" ".join(args) + "\n")
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sys.stdout.flush()
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def print_json(obj):
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import json
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s = json.dumps(obj,sort_keys = True, indent = 4)
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sys.stdout.write(s + "\n")
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sys.stdout.flush()
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def check_windows_wallet_migration():
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if os.path.exists(os.path.join(os.environ["LOCALAPPDATA"], "Electrum")):
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