tdeserialize: p2sh trnsactions - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 094fb8b0a06edb2e2fdbd780658bed310c5af3b8
DIR parent 789223c8715103fd24158e23322992e7ad51e136
HTML Author: thomasv <thomasv@gitorious>
Date: Wed, 30 Jan 2013 20:34:26 +0100
deserialize: p2sh trnsactions
Diffstat:
M lib/deserialize.py | 44 ++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 6 deletions(-)
---
DIR diff --git a/lib/deserialize.py b/lib/deserialize.py
t@@ -2,7 +2,7 @@
#
#
-from bitcoin import public_key_to_bc_address, hash_160_to_bc_address, hash_encode
+from bitcoin import public_key_to_bc_address, hash_160_to_bc_address, hash_encode, multisig_script, hash_160
#import socket
import time
import struct
t@@ -186,8 +186,7 @@ def parse_TxIn(vds):
d['prevout_n'] = vds.read_uint32()
scriptSig = vds.read_bytes(vds.read_compact_size())
d['sequence'] = vds.read_uint32()
- d['address'] = extract_public_key(scriptSig)
- #d['script'] = decode_script(scriptSig)
+ d['address'] = get_address_from_input_script(scriptSig)
return d
t@@ -195,8 +194,7 @@ def parse_TxOut(vds, i):
d = {}
d['value'] = vds.read_int64()
scriptPubKey = vds.read_bytes(vds.read_compact_size())
- d['address'] = extract_public_key(scriptPubKey)
- #d['script'] = decode_script(scriptPubKey)
+ d['address'] = get_address_from_output_script(scriptPubKey)
d['raw_output_script'] = scriptPubKey.encode('hex')
d['index'] = i
return d
t@@ -293,7 +291,7 @@ def match_decoded(decoded, to_match):
return False
return True
-def extract_public_key(bytes):
+def get_address_from_input_script(bytes):
decoded = [ x for x in script_GetOp(bytes) ]
# non-generated TxIn transactions push a signature
t@@ -303,6 +301,35 @@ def extract_public_key(bytes):
if match_decoded(decoded, match):
return public_key_to_bc_address(decoded[1][1])
+ # p2sh transaction, 2 of n
+ match = [ opcodes.OP_0, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
+ if match_decoded(decoded, match):
+ bytes = decoded[3][1]
+ dec2 = [ x for x in script_GetOp(bytes) ]
+
+ # 2 of 2
+ match2 = [ opcodes.OP_2, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_2, opcodes.OP_CHECKMULTISIG ]
+ if match_decoded(dec2, match2):
+ pubkeys = [ dec2[1][1].encode('hex'), dec2[2][1].encode('hex') ]
+ s = multisig_script(pubkeys)
+ return hash_160_to_bc_address(hash_160(s.decode('hex')), 5)
+
+ # 2 of 3
+ match2 = [ opcodes.OP_2, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4, opcodes.OP_3, opcodes.OP_CHECKMULTISIG ]
+ if match_decoded(dec2, match2):
+ pubkeys = [ dec2[1][1].encode('hex'), dec2[2][1].encode('hex'), dec2[3][1].encode('hex') ]
+ s = multisig_script(pubkeys)
+ return hash_160_to_bc_address(hash_160(s.decode('hex')), 5)
+
+ return "p2sh, unknown"
+
+
+ return "(None)"
+
+
+def get_address_from_output_script(bytes):
+ decoded = [ x for x in script_GetOp(bytes) ]
+
# The Genesis Block, self-payments, and pay-by-IP-address payments look like:
# 65 BYTES:... CHECKSIG
match = [ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ]
t@@ -315,4 +342,9 @@ def extract_public_key(bytes):
if match_decoded(decoded, match):
return hash_160_to_bc_address(decoded[2][1])
+ # p2sh
+ match = [ opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUAL ]
+ if match_decoded(decoded, match):
+ return hash_160_to_bc_address(decoded[1][1],5)
+
return "(None)"