#
#
-#from bitcoin import public_key_to_bc_address, hash_160_to_bc_address, hash_encode
-#import socket
-import time, hashlib
+import mmap
+import string
import struct
-addrtype = 0
-
-
-Hash = lambda x: hashlib.sha256(hashlib.sha256(x).digest()).digest()
-hash_encode = lambda x: x[::-1].encode('hex')
-hash_decode = lambda x: x.decode('hex')[::-1]
-
-def hash_160(public_key):
- md = hashlib.new('ripemd160')
- md.update(hashlib.sha256(public_key).digest())
- return md.digest()
-
-def public_key_to_bc_address(public_key):
- h160 = hash_160(public_key)
- return hash_160_to_bc_address(h160)
-
-def hash_160_to_bc_address(h160):
- vh160 = chr(addrtype) + h160
- h = Hash(vh160)
- addr = vh160 + h[0:4]
- return b58encode(addr)
-
-__b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-__b58base = len(__b58chars)
-
-def b58encode(v):
- """ encode v, which is a string of bytes, to base58."""
-
- long_value = 0L
- for (i, c) in enumerate(v[::-1]):
- long_value += (256**i) * ord(c)
-
- result = ''
- while long_value >= __b58base:
- div, mod = divmod(long_value, __b58base)
- result = __b58chars[mod] + result
- long_value = div
- result = __b58chars[long_value] + result
-
- # Bitcoin does a little leading-zero-compression:
- # leading 0-bytes in the input become leading-1s
- nPad = 0
- for c in v:
- if c == '\0': nPad += 1
- else: break
-
- return (__b58chars[0]*nPad) + result
-
-def b58decode(v, length):
- """ decode v into a string of len bytes."""
- long_value = 0L
- for (i, c) in enumerate(v[::-1]):
- long_value += __b58chars.find(c) * (__b58base**i)
-
- result = ''
- while long_value >= 256:
- div, mod = divmod(long_value, 256)
- result = chr(mod) + result
- long_value = div
- result = chr(long_value) + result
-
- nPad = 0
- for c in v:
- if c == __b58chars[0]: nPad += 1
- else: break
-
- result = chr(0)*nPad + result
- if length is not None and len(result) != length:
- return None
-
- return result
+import types
+from utils import *
-#
-# Workalike python implementation of Bitcoin's CDataStream class.
-#
-import struct
-import StringIO
-import mmap
class SerializationError(Exception):
- """ Thrown when there's a problem deserializing or serializing """
+ """Thrown when there's a problem deserializing or serializing."""
-class BCDataStream(object):
- def __init__(self):
- self.input = None
- self.read_cursor = 0
- def clear(self):
- self.input = None
- self.read_cursor = 0
-
- def write(self, bytes): # Initialize with string of bytes
- if self.input is None:
- self.input = bytes
- else:
- self.input += bytes
-
- def map_file(self, file, start): # Initialize with bytes from file
- self.input = mmap.mmap(file.fileno(), 0, access=mmap.ACCESS_READ)
- self.read_cursor = start
- def seek_file(self, position):
- self.read_cursor = position
- def close_file(self):
- self.input.close()
-
- def read_string(self):
- # Strings are encoded depending on length:
- # 0 to 252 : 1-byte-length followed by bytes (if any)
- # 253 to 65,535 : byte'253' 2-byte-length followed by bytes
- # 65,536 to 4,294,967,295 : byte '254' 4-byte-length followed by bytes
- # ... and the Bitcoin client is coded to understand:
- # greater than 4,294,967,295 : byte '255' 8-byte-length followed by bytes of string
- # ... but I don't think it actually handles any strings that big.
- if self.input is None:
- raise SerializationError("call write(bytes) before trying to deserialize")
+class BCDataStream(object):
+ """Workalike python implementation of Bitcoin's CDataStream class."""
+ def __init__(self):
+ self.input = None
+ self.read_cursor = 0
- try:
- length = self.read_compact_size()
- except IndexError:
- raise SerializationError("attempt to read past end of buffer")
+ def clear(self):
+ self.input = None
+ self.read_cursor = 0
+
+ def write(self, bytes): # Initialize with string of bytes
+ if self.input is None:
+ self.input = bytes
+ else:
+ self.input += bytes
+
+ def map_file(self, file, start): # Initialize with bytes from file
+ self.input = mmap.mmap(file.fileno(), 0, access=mmap.ACCESS_READ)
+ self.read_cursor = start
+
+ def seek_file(self, position):
+ self.read_cursor = position
+
+ def close_file(self):
+ self.input.close()
+
+ def read_string(self):
+ # Strings are encoded depending on length:
+ # 0 to 252 : 1-byte-length followed by bytes (if any)
+ # 253 to 65,535 : byte'253' 2-byte-length followed by bytes
+ # 65,536 to 4,294,967,295 : byte '254' 4-byte-length followed by bytes
+ # ... and the Bitcoin client is coded to understand:
+ # greater than 4,294,967,295 : byte '255' 8-byte-length followed by bytes of string
+ # ... but I don't think it actually handles any strings that big.
+ if self.input is None:
+ raise SerializationError("call write(bytes) before trying to deserialize")
+
+ try:
+ length = self.read_compact_size()
+ except IndexError:
+ raise SerializationError("attempt to read past end of buffer")
+
+ return self.read_bytes(length)
+
+ def write_string(self, string):
+ # Length-encoded as with read-string
+ self.write_compact_size(len(string))
+ self.write(string)
+
+ def read_bytes(self, length):
+ try:
+ result = self.input[self.read_cursor:self.read_cursor+length]
+ self.read_cursor += length
+ return result
+ except IndexError:
+ raise SerializationError("attempt to read past end of buffer")
+
+ return ''
+
+ def read_boolean(self):
+ return self.read_bytes(1)[0] != chr(0)
+
+ def read_int16(self):
+ return self._read_num('<h')
+
+ def read_uint16(self):
+ return self._read_num('<H')
+
+ def read_int32(self):
+ return self._read_num('<i')
+
+ def read_uint32(self):
+ return self._read_num('<I')
+
+ def read_int64(self):
+ return self._read_num('<q')
+
+ def read_uint64(self):
+ return self._read_num('<Q')
+
+ def write_boolean(self, val):
+ return self.write(chr(1) if val else chr(0))
+
+ def write_int16(self, val):
+ return self._write_num('<h', val)
+
+ def write_uint16(self, val):
+ return self._write_num('<H', val)
+
+ def write_int32(self, val):
+ return self._write_num('<i', val)
+
+ def write_uint32(self, val):
+ return self._write_num('<I', val)
+
+ def write_int64(self, val):
+ return self._write_num('<q', val)
+
+ def write_uint64(self, val):
+ return self._write_num('<Q', val)
+
+ def read_compact_size(self):
+ size = ord(self.input[self.read_cursor])
+ self.read_cursor += 1
+ if size == 253:
+ size = self._read_num('<H')
+ elif size == 254:
+ size = self._read_num('<I')
+ elif size == 255:
+ size = self._read_num('<Q')
+ return size
+
+ def write_compact_size(self, size):
+ if size < 0:
+ raise SerializationError("attempt to write size < 0")
+ elif size < 253:
+ self.write(chr(size))
+ elif size < 2**16:
+ self.write('\xfd')
+ self._write_num('<H', size)
+ elif size < 2**32:
+ self.write('\xfe')
+ self._write_num('<I', size)
+ elif size < 2**64:
+ self.write('\xff')
+ self._write_num('<Q', size)
+
+ def _read_num(self, format):
+ (i,) = struct.unpack_from(format, self.input, self.read_cursor)
+ self.read_cursor += struct.calcsize(format)
+ return i
+
+ def _write_num(self, format, num):
+ s = struct.pack(format, num)
+ self.write(s)
- return self.read_bytes(length)
- def write_string(self, string):
- # Length-encoded as with read-string
- self.write_compact_size(len(string))
- self.write(string)
+class EnumException(Exception):
+ pass
- def read_bytes(self, length):
- try:
- result = self.input[self.read_cursor:self.read_cursor+length]
- self.read_cursor += length
- return result
- except IndexError:
- raise SerializationError("attempt to read past end of buffer")
-
- return ''
-
- def read_boolean(self): return self.read_bytes(1)[0] != chr(0)
- def read_int16(self): return self._read_num('<h')
- def read_uint16(self): return self._read_num('<H')
- def read_int32(self): return self._read_num('<i')
- def read_uint32(self): return self._read_num('<I')
- def read_int64(self): return self._read_num('<q')
- def read_uint64(self): return self._read_num('<Q')
-
- def write_boolean(self, val): return self.write(chr(1) if val else chr(0))
- def write_int16(self, val): return self._write_num('<h', val)
- def write_uint16(self, val): return self._write_num('<H', val)
- def write_int32(self, val): return self._write_num('<i', val)
- def write_uint32(self, val): return self._write_num('<I', val)
- def write_int64(self, val): return self._write_num('<q', val)
- def write_uint64(self, val): return self._write_num('<Q', val)
-
- def read_compact_size(self):
- size = ord(self.input[self.read_cursor])
- self.read_cursor += 1
- if size == 253:
- size = self._read_num('<H')
- elif size == 254:
- size = self._read_num('<I')
- elif size == 255:
- size = self._read_num('<Q')
- return size
-
- def write_compact_size(self, size):
- if size < 0:
- raise SerializationError("attempt to write size < 0")
- elif size < 253:
- self.write(chr(size))
- elif size < 2**16:
- self.write('\xfd')
- self._write_num('<H', size)
- elif size < 2**32:
- self.write('\xfe')
- self._write_num('<I', size)
- elif size < 2**64:
- self.write('\xff')
- self._write_num('<Q', size)
-
- def _read_num(self, format):
- (i,) = struct.unpack_from(format, self.input, self.read_cursor)
- self.read_cursor += struct.calcsize(format)
- return i
-
- def _write_num(self, format, num):
- s = struct.pack(format, num)
- self.write(s)
-#
-# enum-like type
-# From the Python Cookbook, downloaded from http://code.activestate.com/recipes/67107/
-#
-import types, string, exceptions
+class Enumeration:
+ """enum-like type
-class EnumException(exceptions.Exception):
- pass
+ From the Python Cookbook, downloaded from http://code.activestate.com/recipes/67107/
+ """
-class Enumeration:
def __init__(self, name, enumList):
self.__doc__ = name
- lookup = { }
- reverseLookup = { }
+ lookup = {}
+ reverseLookup = {}
i = 0
- uniqueNames = [ ]
- uniqueValues = [ ]
+ uniqueNames = []
+ uniqueValues = []
for x in enumList:
- if type(x) == types.TupleType:
+ if isinstance(x, types.TupleType):
x, i = x
- if type(x) != types.StringType:
- raise EnumException, "enum name is not a string: " + x
- if type(i) != types.IntType:
- raise EnumException, "enum value is not an integer: " + i
+ if not isinstance(x, types.StringType):
+ raise EnumException("enum name is not a string: %r" % x)
+ if not isinstance(i, types.IntType):
+ raise EnumException("enum value is not an integer: %r" % i)
if x in uniqueNames:
- raise EnumException, "enum name is not unique: " + x
+ raise EnumException("enum name is not unique: %r" % x)
if i in uniqueValues:
- raise EnumException, "enum value is not unique for " + x
+ raise EnumException("enum value is not unique for %r" % x)
uniqueNames.append(x)
uniqueValues.append(i)
lookup[x] = i
i = i + 1
self.lookup = lookup
self.reverseLookup = reverseLookup
+
def __getattr__(self, attr):
- if not self.lookup.has_key(attr):
+ if attr not in self.lookup:
raise AttributeError
return self.lookup[attr]
+
def whatis(self, value):
return self.reverseLookup[value]
def long_hex(bytes):
return bytes.encode('hex_codec')
+
# This function comes from bitcointools, bct-LICENSE.txt.
def short_hex(bytes):
t = bytes.encode('hex_codec')
return t[0:4]+"..."+t[-4:]
-
def parse_TxIn(vds):
- d = {}
- d['prevout_hash'] = hash_encode(vds.read_bytes(32))
- d['prevout_n'] = vds.read_uint32()
- scriptSig = vds.read_bytes(vds.read_compact_size())
- d['sequence'] = vds.read_uint32()
- # actually I don't need that at all
- # if not is_coinbase: d['address'] = extract_public_key(scriptSig)
- # d['script'] = decode_script(scriptSig)
- return d
-
-
-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['raw_output_script'] = scriptPubKey.encode('hex')
- d['index'] = i
- return d
-
+ d = {}
+ d['prevout_hash'] = hash_encode(vds.read_bytes(32))
+ d['prevout_n'] = vds.read_uint32()
+ scriptSig = vds.read_bytes(vds.read_compact_size())
+ d['sequence'] = vds.read_uint32()
+
+ if scriptSig:
+ pubkeys, signatures, address = get_address_from_input_script(scriptSig)
+ else:
+ pubkeys = []
+ signatures = []
+ address = None
-def parse_Transaction(vds, is_coinbase):
- d = {}
- start = vds.read_cursor
- d['version'] = vds.read_int32()
- n_vin = vds.read_compact_size()
- d['inputs'] = []
- for i in xrange(n_vin):
- o = parse_TxIn(vds)
- if not is_coinbase:
- d['inputs'].append(o)
- n_vout = vds.read_compact_size()
- d['outputs'] = []
- for i in xrange(n_vout):
- o = parse_TxOut(vds, i)
+ d['address'] = address
+ d['signatures'] = signatures
- if o['address'] == "None" and o['value']==0:
- print("skipping strange tx output with zero value")
- continue
+ return d
- # if o['address'] != "None":
- d['outputs'].append(o)
- d['lockTime'] = vds.read_uint32()
- return d
+def parse_TxOut(vds, i):
+ d = {}
+ d['value'] = vds.read_int64()
+ scriptPubKey = vds.read_bytes(vds.read_compact_size())
+ d['address'] = get_address_from_output_script(scriptPubKey)
+ d['raw_output_script'] = scriptPubKey.encode('hex')
+ d['index'] = i
+ return d
+def parse_Transaction(vds, is_coinbase):
+ d = {}
+ start = vds.read_cursor
+ d['version'] = vds.read_int32()
+ n_vin = vds.read_compact_size()
+ d['inputs'] = []
+ for i in xrange(n_vin):
+ o = parse_TxIn(vds)
+ if not is_coinbase:
+ d['inputs'].append(o)
+ n_vout = vds.read_compact_size()
+ d['outputs'] = []
+ for i in xrange(n_vout):
+ o = parse_TxOut(vds, i)
+
+ #if o['address'] == "None" and o['value']==0:
+ # print("skipping strange tx output with zero value")
+ # continue
+ # if o['address'] != "None":
+ d['outputs'].append(o)
+
+ d['lockTime'] = vds.read_uint32()
+ return d
opcodes = Enumeration("Opcodes", [
- ("OP_0", 0), ("OP_PUSHDATA1",76), "OP_PUSHDATA2", "OP_PUSHDATA4", "OP_1NEGATE", "OP_RESERVED",
+ ("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",
"OP_8", "OP_9", "OP_10", "OP_11", "OP_12", "OP_13", "OP_14", "OP_15", "OP_16",
"OP_NOP", "OP_VER", "OP_IF", "OP_NOTIF", "OP_VERIF", "OP_VERNOTIF", "OP_ELSE", "OP_ENDIF", "OP_VERIFY",
"OP_WITHIN", "OP_RIPEMD160", "OP_SHA1", "OP_SHA256", "OP_HASH160",
"OP_HASH256", "OP_CODESEPARATOR", "OP_CHECKSIG", "OP_CHECKSIGVERIFY", "OP_CHECKMULTISIG",
"OP_CHECKMULTISIGVERIFY",
- ("OP_SINGLEBYTE_END", 0xF0),
- ("OP_DOUBLEBYTE_BEGIN", 0xF000),
- "OP_PUBKEY", "OP_PUBKEYHASH",
- ("OP_INVALIDOPCODE", 0xFFFF),
+ "OP_NOP1", "OP_NOP2", "OP_NOP3", "OP_NOP4", "OP_NOP5", "OP_NOP6", "OP_NOP7", "OP_NOP8", "OP_NOP9", "OP_NOP10",
+ ("OP_INVALIDOPCODE", 0xFF),
])
+
def script_GetOp(bytes):
- i = 0
- while i < len(bytes):
- vch = None
- opcode = ord(bytes[i])
- i += 1
- if opcode >= opcodes.OP_SINGLEBYTE_END:
- opcode <<= 8
- opcode |= ord(bytes[i])
- i += 1
-
- if opcode <= opcodes.OP_PUSHDATA4:
- nSize = opcode
- if opcode == opcodes.OP_PUSHDATA1:
- nSize = ord(bytes[i])
+ i = 0
+ while i < len(bytes):
+ vch = None
+ opcode = ord(bytes[i])
i += 1
- elif opcode == opcodes.OP_PUSHDATA2:
- (nSize,) = struct.unpack_from('<H', bytes, i)
- i += 2
- elif opcode == opcodes.OP_PUSHDATA4:
- (nSize,) = struct.unpack_from('<I', bytes, i)
- i += 4
- vch = bytes[i:i+nSize]
- i += nSize
- yield (opcode, vch, i)
+ if opcode <= opcodes.OP_PUSHDATA4:
+ nSize = opcode
+ if opcode == opcodes.OP_PUSHDATA1:
+ nSize = ord(bytes[i])
+ i += 1
+ elif opcode == opcodes.OP_PUSHDATA2:
+ (nSize,) = struct.unpack_from('<H', bytes, i)
+ i += 2
+ elif opcode == opcodes.OP_PUSHDATA4:
+ (nSize,) = struct.unpack_from('<I', bytes, i)
+ i += 4
+ if i+nSize > len(bytes):
+ vch = "_INVALID_"+bytes[i:]
+ i = len(bytes)
+ else:
+ vch = bytes[i:i+nSize]
+ i += nSize
+
+ yield (opcode, vch, i)
+
def script_GetOpName(opcode):
- return (opcodes.whatis(opcode)).replace("OP_", "")
+ try:
+ return (opcodes.whatis(opcode)).replace("OP_", "")
+ except KeyError:
+ return "InvalidOp_"+str(opcode)
+
def decode_script(bytes):
- result = ''
- for (opcode, vch, i) in script_GetOp(bytes):
- if len(result) > 0: result += " "
- if opcode <= opcodes.OP_PUSHDATA4:
- result += "%d:"%(opcode,)
- result += short_hex(vch)
- else:
- result += script_GetOpName(opcode)
- return result
+ result = ''
+ for (opcode, vch, i) in script_GetOp(bytes):
+ if len(result) > 0:
+ result += " "
+ if opcode <= opcodes.OP_PUSHDATA4:
+ result += "%d:" % (opcode,)
+ result += short_hex(vch)
+ else:
+ result += script_GetOpName(opcode)
+ return result
+
def match_decoded(decoded, to_match):
- if len(decoded) != len(to_match):
- return False;
- for i in range(len(decoded)):
- if to_match[i] == opcodes.OP_PUSHDATA4 and decoded[i][0] <= opcodes.OP_PUSHDATA4:
- continue # Opcodes below OP_PUSHDATA4 all just push data onto stack, and are equivalent.
- if to_match[i] != decoded[i][0]:
- return False
- return True
-
-def extract_public_key(bytes):
- decoded = [ x for x in script_GetOp(bytes) ]
-
- # non-generated TxIn transactions push a signature
- # (seventy-something bytes) and then their public key
- # (65 bytes) onto the stack:
- match = [ opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
- if match_decoded(decoded, match):
- return public_key_to_bc_address(decoded[1][1])
-
- # The Genesis Block, self-payments, and pay-by-IP-address payments look like:
- # 65 BYTES:... CHECKSIG
- match = [ opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG ]
- if match_decoded(decoded, match):
- return public_key_to_bc_address(decoded[0][1])
-
- # Pay-by-Bitcoin-address TxOuts look like:
- # DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
- match = [ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG ]
- if match_decoded(decoded, match):
- return hash_160_to_bc_address(decoded[2][1])
-
- # strange tx
- match = [ opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG, opcodes.OP_NOP ]
- if match_decoded(decoded, match):
- return hash_160_to_bc_address(decoded[2][1])
-
- #raise BaseException("address not found in script") see ce35795fb64c268a52324b884793b3165233b1e6d678ccaadf760628ec34d76b
- return "None"
+ if len(decoded) != len(to_match):
+ return False
+ for i in range(len(decoded)):
+ if to_match[i] == opcodes.OP_PUSHDATA4 and decoded[i][0] <= opcodes.OP_PUSHDATA4:
+ continue # Opcodes below OP_PUSHDATA4 all just push data onto stack, and are equivalent.
+ if to_match[i] != decoded[i][0]:
+ return False
+ return True
+
+
+
+def get_address_from_input_script(bytes):
+ try:
+ decoded = [ x for x in script_GetOp(bytes) ]
+ except:
+ # coinbase transactions raise an exception
+ return [], [], None
+
+ # non-generated TxIn transactions push a signature
+ # (seventy-something bytes) and then their public key
+ # (33 or 65 bytes) onto the stack:
+
+ match = [ opcodes.OP_PUSHDATA4, opcodes.OP_PUSHDATA4 ]
+ if match_decoded(decoded, match):
+ return None, None, public_key_to_bc_address(decoded[1][1])
+
+ # p2sh transaction, 2 of n
+ match = [ opcodes.OP_0 ]
+ while len(match) < len(decoded):
+ match.append(opcodes.OP_PUSHDATA4)
+
+ if match_decoded(decoded, match):
+
+ redeemScript = decoded[-1][1]
+ num = len(match) - 2
+ signatures = map(lambda x:x[1].encode('hex'), decoded[1:-1])
+ dec2 = [ x for x in script_GetOp(redeemScript) ]
+
+ # 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') ]
+ return pubkeys, signatures, hash_160_to_bc_address(hash_160(redeemScript), 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') ]
+ return pubkeys, signatures, hash_160_to_bc_address(hash_160(redeemScript), 5)
+
+ return [], [], None
+
+
+def get_address_from_output_script(bytes):
+ try:
+ decoded = [ x for x in script_GetOp(bytes) ]
+ except:
+ return "None"
+
+ # The Genesis Block, self-payments, and pay-by-IP-address payments look like:
+ # 65 BYTES:... CHECKSIG
+ match = [opcodes.OP_PUSHDATA4, opcodes.OP_CHECKSIG]
+ if match_decoded(decoded, match):
+ return public_key_to_bc_address(decoded[0][1])
+
+ # coins sent to black hole
+ # DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
+ match = [opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_0, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG]
+ if match_decoded(decoded, match):
+ return "None"
+
+ # Pay-by-Bitcoin-address TxOuts look like:
+ # DUP HASH160 20 BYTES:... EQUALVERIFY CHECKSIG
+ match = [opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG]
+ if match_decoded(decoded, match):
+ return hash_160_to_bc_address(decoded[2][1])
+
+ # strange tx
+ match = [opcodes.OP_DUP, opcodes.OP_HASH160, opcodes.OP_PUSHDATA4, opcodes.OP_EQUALVERIFY, opcodes.OP_CHECKSIG, opcodes.OP_NOP]
+ 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):
+ addr = hash_160_to_bc_address(decoded[1][1],5)
+ return addr
+
+ return "None"
git://git.novaco.in / electrum-server.git / blobdiff