tfix createrawtransaction, using extended serialization format - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 52e9c0b4988e928a95623834c826d1145a52b422
DIR parent 3d32bba0b9570916c3a433d5c3737079b8f56c3f
HTML Author: ThomasV <thomasv@gitorious>
Date: Mon, 29 Dec 2014 20:26:00 +0100
fix createrawtransaction, using extended serialization format
Diffstat:
M lib/commands.py | 19 ++++++++++++++-----
M lib/transaction.py | 122 +++++++++++++------------------
2 files changed, 66 insertions(+), 75 deletions(-)
---
DIR diff --git a/lib/commands.py b/lib/commands.py
t@@ -65,7 +65,7 @@ verifymessage_syntax = 'verifymessage <address> <signature> <message>\nIf you wa
register_command('contacts', 0, 0, False, True, False, 'Show your list of contacts')
register_command('create', 0, 0, False, True, False, 'Create a new wallet')
register_command('createmultisig', 2, 2, False, True, False, 'similar to bitcoind\'s command')
-register_command('createrawtransaction', 2, 2, False, True, False, 'similar to bitcoind\'s command')
+register_command('createrawtransaction', 2, 2, False, True, False, 'Create an unsigned transaction. The syntax is similar to bitcoind.')
register_command('deseed', 0, 0, False, True, False, 'Remove seed from wallet, creating a seedless, watching-only wallet.')
register_command('decoderawtransaction', 1, 1, False, False, False, 'similar to bitcoind\'s command')
register_command('getprivatekeys', 1, 1, False, True, True, 'Get the private keys of a given address', 'getprivatekeys <bitcoin address>')
t@@ -158,11 +158,20 @@ class Commands:
return {'address':r[0] }
def createrawtransaction(self, inputs, outputs):
+ coins = self.wallet.get_unspent_coins(None)
+ tx_inputs = []
for i in inputs:
- i['prevout_hash'] = i['txid']
- i['prevout_n'] = i['vout']
- outputs = map(lambda x: (x[0],int(1e8*x[1])), outputs.items())
- tx = Transaction(inputs, outputs)
+ prevout_hash = i['txid']
+ prevout_n = i['vout']
+ for c in coins:
+ if c['prevout_hash'] == prevout_hash and c['prevout_n'] == prevout_n:
+ self.wallet.add_input_info(c)
+ tx_inputs.append(c)
+ break
+ else:
+ raise BaseException('Transaction output not in wallet', prevout_hash+":%d"%prevout_n)
+ outputs = map(lambda x: ('address', x[0], int(1e8*x[1])), outputs.items())
+ tx = Transaction(tx_inputs, outputs)
return tx
def signtxwithkey(self, raw_tx, sec):
DIR diff --git a/lib/transaction.py b/lib/transaction.py
t@@ -204,24 +204,6 @@ def short_hex(bytes):
-
-def parse_redeemScript(bytes):
- dec = [ x for x in script_GetOp(bytes.decode('hex')) ]
-
- # 2 of 2
- match = [ opcodes.OP_2, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_2, opcodes.OP_CHECKMULTISIG ]
- if match_decoded(dec, match):
- pubkeys = [ dec[1][1].encode('hex'), dec[2][1].encode('hex') ]
- return 2, pubkeys
-
- # 2 of 3
- match = [ opcodes.OP_2, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_3, opcodes.OP_CHECKMULTISIG ]
- if match_decoded(dec, match):
- pubkeys = [ dec[1][1].encode('hex'), dec[2][1].encode('hex'), dec[3][1].encode('hex') ]
- return 2, pubkeys
-
-
-
opcodes = Enumeration("Opcodes", [
("OP_0", 0), ("OP_PUSHDATA1",76), "OP_PUSHDATA2", "OP_PUSHDATA4", "OP_1NEGATE", "OP_RESERVED",
"OP_1", "OP_2", "OP_3", "OP_4", "OP_5", "OP_6", "OP_7",
t@@ -581,12 +563,12 @@ class Transaction:
@classmethod
- def pay_script(self, type, addr):
- if type == 'op_return':
+ def pay_script(self, output_type, addr):
+ if output_type == 'op_return':
h = addr.encode('hex')
return '6a' + push_script(h)
else:
- assert type == 'address'
+ assert output_type == 'address'
addrtype, hash_160 = bc_address_to_hash_160(addr)
if addrtype == 0:
script = '76a9' # op_dup, op_hash_160
t@@ -600,70 +582,70 @@ class Transaction:
raise
return script
-
- def serialize(self, for_sig=None):
+ def input_script(self, txin, i, for_sig):
# for_sig:
# -1 : do not sign, estimate length
# i>=0 : serialized tx for signing input i
# None : add all known signatures
+ p2sh = txin.get('redeemScript') is not None
+ num_sig = txin['num_sig'] if p2sh else 1
+ address = txin['address']
+
+ x_signatures = txin['signatures']
+ signatures = filter(None, x_signatures)
+ is_complete = len(signatures) == num_sig
+
+ if for_sig in [-1, None]:
+ # if we have enough signatures, we use the actual pubkeys
+ # use extended pubkeys (with bip32 derivation)
+ if for_sig == -1:
+ # we assume that signature will be 0x48 bytes long
+ pubkeys = txin['pubkeys']
+ sig_list = [ "00" * 0x48 ] * num_sig
+ elif is_complete:
+ pubkeys = txin['pubkeys']
+ sig_list = ((sig + '01') for sig in signatures)
+ else:
+ pubkeys = txin['x_pubkeys']
+ sig_list = ((sig + '01') if sig else NO_SIGNATURE for sig in x_signatures)
+ script = ''.join(push_script(x) for x in sig_list)
+ if not p2sh:
+ x_pubkey = pubkeys[0]
+ if x_pubkey is None:
+ addrtype, h160 = bc_address_to_hash_160(txin['address'])
+ x_pubkey = 'fd' + (chr(addrtype) + h160).encode('hex')
+ script += push_script(x_pubkey)
+ else:
+ script = '00' + script # put op_0 in front of script
+ redeem_script = self.multisig_script(pubkeys,2)
+ script += push_script(redeem_script)
+
+ elif for_sig==i:
+ script = txin['redeemScript'] if p2sh else self.pay_script('address', address)
+ else:
+ script = ''
+
+ return script
+
+
+ def serialize(self, for_sig=None):
inputs = self.inputs
outputs = self.outputs
-
s = int_to_hex(1,4) # version
s += var_int( len(inputs) ) # number of inputs
for i, txin in enumerate(inputs):
-
s += txin['prevout_hash'].decode('hex')[::-1].encode('hex') # prev hash
- s += int_to_hex(txin['prevout_n'],4) # prev index
-
- p2sh = txin.get('redeemScript') is not None
- num_sig = txin['num_sig']
- address = txin['address']
-
- x_signatures = txin['signatures']
- signatures = filter(None, x_signatures)
- is_complete = len(signatures) == num_sig
-
- if for_sig in [-1, None]:
- # if we have enough signatures, we use the actual pubkeys
- # use extended pubkeys (with bip32 derivation)
- if for_sig == -1:
- # we assume that signature will be 0x48 bytes long
- pubkeys = txin['pubkeys']
- sig_list = [ "00" * 0x48 ] * num_sig
- elif is_complete:
- pubkeys = txin['pubkeys']
- sig_list = ((sig + '01') for sig in signatures)
- else:
- pubkeys = txin['x_pubkeys']
- sig_list = ((sig + '01') if sig else NO_SIGNATURE for sig in x_signatures)
- script = ''.join(push_script(x) for x in sig_list)
- if not p2sh:
- x_pubkey = pubkeys[0]
- if x_pubkey is None:
- addrtype, h160 = bc_address_to_hash_160(txin['address'])
- x_pubkey = 'fd' + (chr(addrtype) + h160).encode('hex')
- script += push_script(x_pubkey)
- else:
- script = '00' + script # put op_0 in front of script
- redeem_script = self.multisig_script(pubkeys,2)
- script += push_script(redeem_script)
-
- elif for_sig==i:
- script = txin['redeemScript'] if p2sh else self.pay_script('address', address)
- else:
- script = ''
-
+ s += int_to_hex(txin['prevout_n'], 4) # prev index
+ script = self.input_script(txin, i, for_sig)
s += var_int( len(script)/2 ) # script length
s += script
s += "ffffffff" # sequence
-
s += var_int( len(outputs) ) # number of outputs
for output in outputs:
- type, addr, amount = output
+ output_type, addr, amount = output
s += int_to_hex( amount, 8) # amount
- script = self.pay_script(type, addr)
+ script = self.pay_script(output_type, addr)
s += var_int( len(script)/2 ) # script length
s += script # script
s += int_to_hex(0,4) # lock time
t@@ -696,9 +678,9 @@ class Transaction:
for txin in self.inputs:
if txin.get('is_coinbase'):
continue
- signatures = filter(None, txin['signatures'])
+ signatures = filter(None, txin.get('signatures',[]))
s += len(signatures)
- r += txin['num_sig']
+ r += txin.get('num_sig',-1)
return s, r
def is_complete(self):