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fix and simplify tx serialization

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This commit is contained in:
ThomasV 2014-04-03 21:23:35 +02:00
parent 8e644a4dc8
commit 02c3bc131e
1 changed files with 14 additions and 18 deletions
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32
lib/transaction.py
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@ -421,6 +421,7 @@ class Transaction:
@classmethod @classmethod
def serialize( klass, inputs, outputs, for_sig = None ): def serialize( klass, inputs, outputs, for_sig = None ):
push_script = lambda x: op_push(len(x)/2) + x
s = int_to_hex(1,4) # version s = int_to_hex(1,4) # version
s += var_int( len(inputs) ) # number of inputs s += var_int( len(inputs) ) # number of inputs
for i in range(len(inputs)): for i in range(len(inputs)):
@ -431,28 +432,23 @@ class Transaction:
if for_sig is None: if for_sig is None:
signatures = txin['signatures'] signatures = txin['signatures']
pubkeys = txin['pubkeys'] pubkeys = txin['pubkeys']
sig_list = ''
for pubkey in pubkeys:
sig = signatures.get(pubkey)
if not sig:
continue
sig = sig + '01'
sig_list += push_script(sig)
if not txin.get('redeemScript'): if not txin.get('redeemScript'):
pubkey = pubkeys[0] script = sig_list
script = '' script += push_script(pubkeys[0])
if signatures:
sig = signatures[0]
sig = sig + '01' # hashtype
script += op_push(len(sig)/2)
script += sig
script += op_push(len(pubkey)/2)
script += pubkey
else: else:
script = '00' # op_0 script = '00' # op_0
for pubkey in pubkeys: script += sig_list
sig = signatures.get(pubkey)
if not sig: continue
sig = sig + '01'
script += op_push(len(sig)/2)
script += sig
redeem_script = klass.multisig_script(pubkeys,2) redeem_script = klass.multisig_script(pubkeys,2)
script += op_push(len(redeem_script)/2) assert redeem_script == txin.get('redeemScript')
script += redeem_script script += push_script(redeem_script)
elif for_sig==i: elif for_sig==i:
if txin.get('redeemScript'): if txin.get('redeemScript'):