tsupport for multisig functions - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 972ba397d1eca79a3f6eddd4550480a198a6ae60
DIR parent f971c80d5812b629d00bdd5760a93889a4f6e0ab
HTML Author: thomasv <thomasv@gitorious>
Date: Wed, 20 Feb 2013 13:10:32 +0100
support for multisig functions
Diffstat:
M electrum | 58 +++++++++++++++++++++++++++++--
M lib/__init__.py | 2 +-
M lib/bitcoin.py | 25 ++++++++++++++++++++++---
M lib/util.py | 6 ++++++
4 files changed, 85 insertions(+), 6 deletions(-)
---
DIR diff --git a/electrum b/electrum
t@@ -91,6 +91,10 @@ options:\n --fee, -f: set transaction fee\n --fromaddr, -s: send from address
'unfreeze':'',
'prioritize':'',
'unprioritize':'',
+ 'createmultisig':'similar to bitcoind\'s command',
+ 'createrawtransaction':'similar to bitcoind\'s command',
+ 'decoderawtransaction':'similar to bitcoind\'s command',
+ 'signrawtransaction':'similar to bitcoind\'s command',
}
t@@ -103,10 +107,12 @@ offline_commands = [ 'password', 'mktx', 'signtx',
'importprivkey', 'seed',
'deseed','reseed',
'freeze','unfreeze',
- 'prioritize','unprioritize']
+ 'prioritize','unprioritize',
+ 'createmultisig', 'createrawtransaction', 'decoderawtransaction', 'signrawtransaction'
+ ]
-protected_commands = ['payto', 'password', 'mktx', 'signtx', 'seed', 'importprivkey','signmessage' ]
+protected_commands = ['payto', 'password', 'mktx', 'signtx', 'seed', 'importprivkey','signmessage', 'signrawtransaction' ]
# get password routine
def prompt_password(prompt, confirm=True):
t@@ -690,5 +696,53 @@ if __name__ == '__main__':
print_msg(wallet.unprioritize(addr))
+ elif cmd == 'createmultisig':
+ import ast
+ from lib.bitcoin import *
+ num = int(args[1])
+ pubkeys = ast.literal_eval(args[2])
+ assert isinstance(pubkeys,list)
+ s = multisig_script(pubkeys, num)
+ out = { "address": hash_160_to_bc_address(hash_160(s.decode('hex')), 5), "redeemScript":s }
+ print_json(out)
+
+
+ elif cmd == 'createrawtransaction':
+ import ast
+ inputs = ast.literal_eval(args[1])
+ outputs = ast.literal_eval(args[2])
+ inputs = map(lambda x: (None, None, x["txid"], x["vout"], None, None), inputs)
+ outputs = map(lambda x: (x[0],int(x[1]*1e8)), outputs.items())
+ tx = raw_tx(inputs, outputs, for_sig = -1) # for_sig=-1 means do not sign
+ print_msg( tx )
+
+
+ elif cmd == 'decoderawtransaction':
+ print_json( bitcoin.deserialize(args[1]) )
+
+
+ elif cmd == 'signrawtransaction':
+ d = bitcoin.deserialize(args[1])
+ txouts = args[2] if len(args)>2 else []
+ private_keys = args[3] if len(args)>3 else []
+
+ inputs = []
+ for x in d['inputs']:
+ txid = x["prevout_hash"]
+ nout = x["prevout_n"]
+ tx = wallet.transactions.get(txid)
+ txout = tx['outputs'][nout]
+ addr = txout['address']
+ v = txout['value']
+ inputs.append( (addr, v, txid, nout, txout['raw_output_script'], [(None,None)] ) )
+
+ outputs = map(lambda x: (x['address'],x['value']), d['outputs'])
+ print_error("inputs", inputs)
+ print_error("outputs", outputs)
+
+ tx = wallet.signed_tx( inputs, outputs, password )
+ print_msg(tx)
+
+
if cmd not in offline_commands and not options.offline:
synchronizer.stop()
DIR diff --git a/lib/__init__.py b/lib/__init__.py
t@@ -1,5 +1,5 @@
from version import ELECTRUM_VERSION
-from util import format_satoshis, print_msg, print_error, set_verbosity
+from util import format_satoshis, print_msg, print_json, print_error, set_verbosity
from i18n import set_language
from wallet import WalletSynchronizer
from wallet_factory import WalletFactory as Wallet
DIR diff --git a/lib/bitcoin.py b/lib/bitcoin.py
t@@ -378,14 +378,33 @@ def raw_tx( inputs, outputs, for_sig = None ):
s += var_int( len(tx_filter(script))/2 ) # script length
s += script # script
s += int_to_hex(0,4) # lock time
- if for_sig is not None: s += int_to_hex(1, 4) # hash type
+ if for_sig is not None and for_sig != 1: s += int_to_hex(1, 4) # hash type
return tx_filter(s)
-def multisig_script(public_keys):
+def deserialize(raw_tx):
+ import deserialize
+ vds = deserialize.BCDataStream()
+ vds.write(raw_tx.decode('hex'))
+ return deserialize.parse_Transaction(vds)
+
+
+def multisig_script(public_keys, num=None):
# supports only "2 of 2", and "2 of 3" transactions
n = len(public_keys)
- s = '52'
+
+ if num is None:
+ num = n
+
+ assert num <= n and n <= 3 and n >= 2
+
+ if num==2:
+ s = '52'
+ elif num == 3:
+ s = '53'
+ else:
+ raise
+
for k in public_keys:
s += var_int(len(k)/2)
s += k
DIR diff --git a/lib/util.py b/lib/util.py
t@@ -22,6 +22,12 @@ def print_msg(*args):
sys.stdout.write(" ".join(args) + "\n")
sys.stdout.flush()
+def print_json(obj):
+ import json
+ s = json.dumps(obj,sort_keys = True, indent = 4)
+ sys.stdout.write(s + "\n")
+ sys.stdout.flush()
+
def check_windows_wallet_migration():
if os.path.exists(os.path.join(os.environ["LOCALAPPDATA"], "Electrum")):