commit afac84e231c424dbf2dc9588196114aec37f3f82
parent d2099d94e5b3ac3be5a8e09566189bb04317a8b6
Author: thomasv <thomasv@gitorious>
Date: Wed, 4 Sep 2013 16:46:27 +0200
move transaction code and fix issue #280
Diffstat:
8 files changed, 747 insertions(+), 701 deletions(-)
diff --git a/gui/gui_classic.py b/gui/gui_classic.py
@@ -41,7 +41,7 @@ except:
sys.exit("Error: Could not import icons_rc.py, please generate it with: 'pyrcc4 icons.qrc -o gui/icons_rc.py'")
from electrum.wallet import format_satoshis
-from electrum.bitcoin import Transaction, is_valid
+from electrum import Transaction
from electrum import mnemonic
from electrum import util, bitcoin, commands, Interface, Wallet
from electrum import SimpleConfig, Wallet, WalletStorage
diff --git a/lib/__init__.py b/lib/__init__.py
@@ -8,7 +8,8 @@ from interface import Interface, pick_random_server, DEFAULT_SERVERS
from simple_config import SimpleConfig
import bitcoin
import account
-from bitcoin import Transaction, EC_KEY, is_valid
+from transaction import Transaction
+
from mnemonic import mn_encode as mnemonic_encode
from mnemonic import mn_decode as mnemonic_decode
from commands import protected_commands, known_commands, offline_commands, Commands
diff --git a/lib/bitcoin.py b/lib/bitcoin.py
@@ -460,300 +460,6 @@ def bip32_private_key(sequence, k, chain):
MIN_RELAY_TX_FEE = 10000
-class Transaction:
-
- def __init__(self, raw):
- self.raw = raw
- self.deserialize()
- self.inputs = self.d['inputs']
- self.outputs = self.d['outputs']
- self.outputs = map(lambda x: (x['address'],x['value']), self.outputs)
- self.input_info = None
- self.is_complete = True
-
- @classmethod
- def from_io(klass, inputs, outputs):
- raw = klass.serialize(inputs, outputs, for_sig = -1) # for_sig=-1 means do not sign
- self = klass(raw)
- self.is_complete = False
- self.inputs = inputs
- self.outputs = outputs
- extras = []
- for i in self.inputs:
- e = { 'txid':i['tx_hash'], 'vout':i['index'], 'scriptPubKey':i.get('raw_output_script') }
- extras.append(e)
- self.input_info = extras
- return self
-
- def __str__(self):
- return self.raw
-
- @classmethod
- def multisig_script(klass, public_keys, num=None):
- n = len(public_keys)
- if num is None: num = n
- # supports only "2 of 2", and "2 of 3" transactions
- assert num <= n and n in [2,3]
-
- 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
- if n==2:
- s += '52'
- elif n==3:
- s += '53'
- else:
- raise
- s += 'ae'
-
- return s
-
- @classmethod
- def serialize( klass, inputs, outputs, for_sig = None ):
-
- s = int_to_hex(1,4) # version
- s += var_int( len(inputs) ) # number of inputs
- for i in range(len(inputs)):
- txin = inputs[i]
- s += txin['tx_hash'].decode('hex')[::-1].encode('hex') # prev hash
- s += int_to_hex(txin['index'],4) # prev index
-
- if for_sig is None:
- signatures = txin['signatures']
- pubkeys = txin['pubkeys']
- if not txin.get('redeemScript'):
- pubkey = pubkeys[0]
- sig = signatures[0]
- sig = sig + '01' # hashtype
- script = op_push(len(sig)/2)
- script += sig
- script += op_push(len(pubkey)/2)
- script += pubkey
- else:
- script = '00' # op_0
- for sig in signatures:
- sig = sig + '01'
- script += op_push(len(sig)/2)
- script += sig
-
- redeem_script = klass.multisig_script(pubkeys,2)
- script += op_push(len(redeem_script)/2)
- script += redeem_script
-
- elif for_sig==i:
- if txin.get('redeemScript'):
- script = txin['redeemScript'] # p2sh uses the inner script
- else:
- script = txin['raw_output_script'] # scriptsig
- else:
- script=''
- 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:
- addr, amount = output
- s += int_to_hex( amount, 8) # amount
- addrtype, hash_160 = bc_address_to_hash_160(addr)
- if addrtype == 0:
- script = '76a9' # op_dup, op_hash_160
- script += '14' # push 0x14 bytes
- script += hash_160.encode('hex')
- script += '88ac' # op_equalverify, op_checksig
- elif addrtype == 5:
- script = 'a9' # op_hash_160
- script += '14' # push 0x14 bytes
- script += hash_160.encode('hex')
- script += '87' # op_equal
- else:
- raise
-
- s += var_int( len(script)/2 ) # script length
- s += script # script
- s += int_to_hex(0,4) # lock time
- if for_sig is not None and for_sig != -1:
- s += int_to_hex(1, 4) # hash type
- return s
-
-
- def for_sig(self,i):
- return self.serialize(self.inputs, self.outputs, for_sig = i)
-
-
- def hash(self):
- return Hash(self.raw.decode('hex') )[::-1].encode('hex')
-
-
-
- def sign(self, keypairs):
- import deserialize
- is_complete = True
- print_error("tx.sign(), keypairs:", keypairs)
-
- for i, txin in enumerate(self.inputs):
-
- # if the input is multisig, parse redeem script
- redeem_script = txin.get('redeemScript')
- num, redeem_pubkeys = deserialize.parse_redeemScript(redeem_script) if redeem_script else (1, [txin.get('redeemPubkey')])
-
- # add pubkeys
- txin["pubkeys"] = redeem_pubkeys
- # get list of already existing signatures
- signatures = txin.get("signatures",[])
- # continue if this txin is complete
- if len(signatures) == num:
- continue
-
- tx_for_sig = self.serialize( self.inputs, self.outputs, for_sig = i )
- for pubkey in redeem_pubkeys:
- # check if we have the corresponding private key
- if pubkey in keypairs.keys():
- # add signature
- sec = keypairs[pubkey]
- compressed = is_compressed(sec)
- pkey = regenerate_key(sec)
- secexp = pkey.secret
- private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
- public_key = private_key.get_verifying_key()
- sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der )
- assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
- signatures.append( sig.encode('hex') )
- print_error("adding signature for", pubkey)
-
- txin["signatures"] = signatures
- is_complete = is_complete and len(signatures) == num
-
- self.is_complete = is_complete
- self.raw = self.serialize( self.inputs, self.outputs )
-
-
- def deserialize(self):
- import deserialize
- vds = deserialize.BCDataStream()
- vds.write(self.raw.decode('hex'))
- self.d = deserialize.parse_Transaction(vds)
- return self.d
-
-
- def has_address(self, addr):
- found = False
- for txin in self.inputs:
- if addr == txin.get('address'):
- found = True
- break
- for txout in self.outputs:
- if addr == txout[0]:
- found = True
- break
- return found
-
-
- def get_value(self, addresses, prevout_values):
- # return the balance for that tx
- is_relevant = False
- is_send = False
- is_pruned = False
- is_partial = False
- v_in = v_out = v_out_mine = 0
-
- for item in self.inputs:
- addr = item.get('address')
- if addr in addresses:
- is_send = True
- is_relevant = True
- key = item['prevout_hash'] + ':%d'%item['prevout_n']
- value = prevout_values.get( key )
- if value is None:
- is_pruned = True
- else:
- v_in += value
- else:
- is_partial = True
-
- if not is_send: is_partial = False
-
- for item in self.outputs:
- addr, value = item
- v_out += value
- if addr in addresses:
- v_out_mine += value
- is_relevant = True
-
- if is_pruned:
- # some inputs are mine:
- fee = None
- if is_send:
- v = v_out_mine - v_out
- else:
- # no input is mine
- v = v_out_mine
-
- else:
- v = v_out_mine - v_in
-
- if is_partial:
- # some inputs are mine, but not all
- fee = None
- is_send = v < 0
- else:
- # all inputs are mine
- fee = v_out - v_in
-
- return is_relevant, is_send, v, fee
-
- def as_dict(self):
- import json
- out = {
- "hex":self.raw,
- "complete":self.is_complete
- }
- if not self.is_complete:
- extras = []
- for i in self.inputs:
- e = { 'txid':i['tx_hash'], 'vout':i['index'],
- 'scriptPubKey':i.get('raw_output_script'),
- 'KeyID':i.get('KeyID'),
- 'redeemScript':i.get('redeemScript'),
- 'signatures':i.get('signatures'),
- 'pubkeys':i.get('pubkeys'),
- }
- extras.append(e)
- self.input_info = extras
-
- if self.input_info:
- out['input_info'] = json.dumps(self.input_info).replace(' ','')
-
- return out
-
-
- def requires_fee(self, verifier):
- # see https://en.bitcoin.it/wiki/Transaction_fees
- threshold = 57600000
- size = len(self.raw)/2
- if size >= 10000:
- return True
-
- for o in self.outputs:
- value = o[1]
- if value < 1000000:
- return True
- sum = 0
- for i in self.inputs:
- age = verifier.get_confirmations(i["tx_hash"])[0]
- sum += i["value"] * age
- priority = sum / size
- print_error(priority, threshold)
- return priority < threshold
-
-
def test_bip32(seed, sequence):
diff --git a/lib/deserialize.py b/lib/deserialize.py
@@ -1,392 +0,0 @@
-# this code comes from ABE. it can probably be simplified
-#
-#
-
-from bitcoin import public_key_to_bc_address, hash_160_to_bc_address, hash_encode, hash_160
-from util import print_error
-#import socket
-import time
-import struct
-
-#
-# 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 """
-
-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")
-
- 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)
-
-#
-# enum-like type
-# From the Python Cookbook, downloaded from http://code.activestate.com/recipes/67107/
-#
-import types, string, exceptions
-
-class EnumException(exceptions.Exception):
- pass
-
-class Enumeration:
- def __init__(self, name, enumList):
- self.__doc__ = name
- lookup = { }
- reverseLookup = { }
- i = 0
- uniqueNames = [ ]
- uniqueValues = [ ]
- for x in enumList:
- if type(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 x in uniqueNames:
- raise EnumException, "enum name is not unique: " + x
- if i in uniqueValues:
- raise EnumException, "enum value is not unique for " + x
- uniqueNames.append(x)
- uniqueValues.append(i)
- lookup[x] = i
- reverseLookup[i] = x
- i = i + 1
- self.lookup = lookup
- self.reverseLookup = reverseLookup
- def __getattr__(self, attr):
- if not self.lookup.has_key(attr):
- raise AttributeError
- return self.lookup[attr]
- def whatis(self, value):
- return self.reverseLookup[value]
-
-
-# This function comes from bitcointools, bct-LICENSE.txt.
-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')
- if len(t) < 11:
- return t
- 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()
-
- if scriptSig:
- pubkeys, signatures, address = get_address_from_input_script(scriptSig)
- else:
- pubkeys = []
- signatures = []
- address = None
-
- d['address'] = address
- d['signatures'] = signatures
-
- 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):
- d = {}
- start = vds.read_cursor
- d['version'] = vds.read_int32()
- n_vin = vds.read_compact_size()
- d['inputs'] = []
- for i in xrange(n_vin):
- d['inputs'].append(parse_TxIn(vds))
- n_vout = vds.read_compact_size()
- d['outputs'] = []
- for i in xrange(n_vout):
- d['outputs'].append(parse_TxOut(vds, i))
- d['lockTime'] = vds.read_uint32()
- return d
-
-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",
- "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_RETURN", "OP_TOALTSTACK", "OP_FROMALTSTACK", "OP_2DROP", "OP_2DUP", "OP_3DUP", "OP_2OVER", "OP_2ROT", "OP_2SWAP",
- "OP_IFDUP", "OP_DEPTH", "OP_DROP", "OP_DUP", "OP_NIP", "OP_OVER", "OP_PICK", "OP_ROLL", "OP_ROT",
- "OP_SWAP", "OP_TUCK", "OP_CAT", "OP_SUBSTR", "OP_LEFT", "OP_RIGHT", "OP_SIZE", "OP_INVERT", "OP_AND",
- "OP_OR", "OP_XOR", "OP_EQUAL", "OP_EQUALVERIFY", "OP_RESERVED1", "OP_RESERVED2", "OP_1ADD", "OP_1SUB", "OP_2MUL",
- "OP_2DIV", "OP_NEGATE", "OP_ABS", "OP_NOT", "OP_0NOTEQUAL", "OP_ADD", "OP_SUB", "OP_MUL", "OP_DIV",
- "OP_MOD", "OP_LSHIFT", "OP_RSHIFT", "OP_BOOLAND", "OP_BOOLOR",
- "OP_NUMEQUAL", "OP_NUMEQUALVERIFY", "OP_NUMNOTEQUAL", "OP_LESSTHAN",
- "OP_GREATERTHAN", "OP_LESSTHANOREQUAL", "OP_GREATERTHANOREQUAL", "OP_MIN", "OP_MAX",
- "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),
-])
-
-
-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 += 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)
-
-
-def script_GetOpName(opcode):
- return (opcodes.whatis(opcode)).replace("OP_", "")
-
-
-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
-
-
-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 and decoded[i][0]>0:
- 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
- print_error("cannot find address in input script", bytes.encode('hex'))
- return [], [], "(None)"
-
- # 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 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][:-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)
-
- print_error("cannot find address in input script", bytes.encode('hex'))
- 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 ]
- 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])
-
- # 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)"
-
-
diff --git a/lib/transaction.py b/lib/transaction.py
@@ -0,0 +1,715 @@
+#!/usr/bin/env python
+#
+# Electrum - lightweight Bitcoin client
+# Copyright (C) 2011 thomasv@gitorious
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+# Note: The deserialization code originally comes from ABE.
+
+
+from bitcoin import *
+from util import print_error
+import time
+import struct
+
+#
+# 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 """
+
+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")
+
+ 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)
+
+#
+# enum-like type
+# From the Python Cookbook, downloaded from http://code.activestate.com/recipes/67107/
+#
+import types, string, exceptions
+
+class EnumException(exceptions.Exception):
+ pass
+
+class Enumeration:
+ def __init__(self, name, enumList):
+ self.__doc__ = name
+ lookup = { }
+ reverseLookup = { }
+ i = 0
+ uniqueNames = [ ]
+ uniqueValues = [ ]
+ for x in enumList:
+ if type(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 x in uniqueNames:
+ raise EnumException, "enum name is not unique: " + x
+ if i in uniqueValues:
+ raise EnumException, "enum value is not unique for " + x
+ uniqueNames.append(x)
+ uniqueValues.append(i)
+ lookup[x] = i
+ reverseLookup[i] = x
+ i = i + 1
+ self.lookup = lookup
+ self.reverseLookup = reverseLookup
+ def __getattr__(self, attr):
+ if not self.lookup.has_key(attr):
+ raise AttributeError
+ return self.lookup[attr]
+ def whatis(self, value):
+ return self.reverseLookup[value]
+
+
+# This function comes from bitcointools, bct-LICENSE.txt.
+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')
+ if len(t) < 11:
+ return t
+ return t[0:4]+"..."+t[-4:]
+
+
+
+
+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",
+ "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_RETURN", "OP_TOALTSTACK", "OP_FROMALTSTACK", "OP_2DROP", "OP_2DUP", "OP_3DUP", "OP_2OVER", "OP_2ROT", "OP_2SWAP",
+ "OP_IFDUP", "OP_DEPTH", "OP_DROP", "OP_DUP", "OP_NIP", "OP_OVER", "OP_PICK", "OP_ROLL", "OP_ROT",
+ "OP_SWAP", "OP_TUCK", "OP_CAT", "OP_SUBSTR", "OP_LEFT", "OP_RIGHT", "OP_SIZE", "OP_INVERT", "OP_AND",
+ "OP_OR", "OP_XOR", "OP_EQUAL", "OP_EQUALVERIFY", "OP_RESERVED1", "OP_RESERVED2", "OP_1ADD", "OP_1SUB", "OP_2MUL",
+ "OP_2DIV", "OP_NEGATE", "OP_ABS", "OP_NOT", "OP_0NOTEQUAL", "OP_ADD", "OP_SUB", "OP_MUL", "OP_DIV",
+ "OP_MOD", "OP_LSHIFT", "OP_RSHIFT", "OP_BOOLAND", "OP_BOOLOR",
+ "OP_NUMEQUAL", "OP_NUMEQUALVERIFY", "OP_NUMNOTEQUAL", "OP_LESSTHAN",
+ "OP_GREATERTHAN", "OP_LESSTHANOREQUAL", "OP_GREATERTHANOREQUAL", "OP_MIN", "OP_MAX",
+ "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),
+])
+
+
+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 += 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)
+
+
+def script_GetOpName(opcode):
+ return (opcodes.whatis(opcode)).replace("OP_", "")
+
+
+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
+
+
+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 and decoded[i][0]>0:
+ 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
+ print_error("cannot find address in input script", bytes.encode('hex'))
+ return [], [], "(None)"
+
+ # payto_pubkey
+ match = [ opcodes.OP_PUSHDATA4 ]
+ if match_decoded(decoded, match):
+ return None, None, "(pubkey)"
+
+ # 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 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][:-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)
+
+ print_error("cannot find address in input script", bytes.encode('hex'))
+ 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 ]
+ if match_decoded(decoded, match):
+ return True, 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 False, 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 False, hash_160_to_bc_address(decoded[1][1],5)
+
+ return False, "(None)"
+
+
+class Transaction:
+
+ def __init__(self, raw):
+ self.raw = raw
+ self.deserialize()
+ self.inputs = self.d['inputs']
+ self.outputs = self.d['outputs']
+ self.outputs = map(lambda x: (x['address'],x['value']), self.outputs)
+ self.input_info = None
+ self.is_complete = True
+
+ @classmethod
+ def from_io(klass, inputs, outputs):
+ raw = klass.serialize(inputs, outputs, for_sig = -1) # for_sig=-1 means do not sign
+ self = klass(raw)
+ self.is_complete = False
+ self.inputs = inputs
+ self.outputs = outputs
+ extras = []
+ for i in self.inputs:
+ e = { 'txid':i['tx_hash'], 'vout':i['index'], 'scriptPubKey':i.get('raw_output_script') }
+ extras.append(e)
+ self.input_info = extras
+ return self
+
+ def __str__(self):
+ return self.raw
+
+ @classmethod
+ def multisig_script(klass, public_keys, num=None):
+ n = len(public_keys)
+ if num is None: num = n
+ # supports only "2 of 2", and "2 of 3" transactions
+ assert num <= n and n in [2,3]
+
+ 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
+ if n==2:
+ s += '52'
+ elif n==3:
+ s += '53'
+ else:
+ raise
+ s += 'ae'
+
+ return s
+
+ @classmethod
+ def serialize( klass, inputs, outputs, for_sig = None ):
+
+ s = int_to_hex(1,4) # version
+ s += var_int( len(inputs) ) # number of inputs
+ for i in range(len(inputs)):
+ txin = inputs[i]
+ s += txin['tx_hash'].decode('hex')[::-1].encode('hex') # prev hash
+ s += int_to_hex(txin['index'],4) # prev index
+
+ if for_sig is None:
+ signatures = txin['signatures']
+ pubkeys = txin['pubkeys']
+ if not txin.get('redeemScript'):
+ pubkey = pubkeys[0]
+ sig = signatures[0]
+ sig = sig + '01' # hashtype
+ script = op_push(len(sig)/2)
+ script += sig
+ script += op_push(len(pubkey)/2)
+ script += pubkey
+ else:
+ script = '00' # op_0
+ for sig in signatures:
+ sig = sig + '01'
+ script += op_push(len(sig)/2)
+ script += sig
+
+ redeem_script = klass.multisig_script(pubkeys,2)
+ script += op_push(len(redeem_script)/2)
+ script += redeem_script
+
+ elif for_sig==i:
+ if txin.get('redeemScript'):
+ script = txin['redeemScript'] # p2sh uses the inner script
+ else:
+ script = txin['raw_output_script'] # scriptsig
+ else:
+ script=''
+ 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:
+ addr, amount = output
+ s += int_to_hex( amount, 8) # amount
+ addrtype, hash_160 = bc_address_to_hash_160(addr)
+ if addrtype == 0:
+ script = '76a9' # op_dup, op_hash_160
+ script += '14' # push 0x14 bytes
+ script += hash_160.encode('hex')
+ script += '88ac' # op_equalverify, op_checksig
+ elif addrtype == 5:
+ script = 'a9' # op_hash_160
+ script += '14' # push 0x14 bytes
+ script += hash_160.encode('hex')
+ script += '87' # op_equal
+ else:
+ raise
+
+ s += var_int( len(script)/2 ) # script length
+ s += script # script
+ s += int_to_hex(0,4) # lock time
+ if for_sig is not None and for_sig != -1:
+ s += int_to_hex(1, 4) # hash type
+ return s
+
+
+ def for_sig(self,i):
+ return self.serialize(self.inputs, self.outputs, for_sig = i)
+
+
+ def hash(self):
+ return Hash(self.raw.decode('hex') )[::-1].encode('hex')
+
+
+
+ def sign(self, keypairs):
+ is_complete = True
+ print_error("tx.sign(), keypairs:", keypairs)
+
+ for i, txin in enumerate(self.inputs):
+
+ # if the input is multisig, parse redeem script
+ redeem_script = txin.get('redeemScript')
+ num, redeem_pubkeys = parse_redeemScript(redeem_script) if redeem_script else (1, [txin.get('redeemPubkey')])
+
+ # add pubkeys
+ txin["pubkeys"] = redeem_pubkeys
+ # get list of already existing signatures
+ signatures = txin.get("signatures",[])
+ # continue if this txin is complete
+ if len(signatures) == num:
+ continue
+
+ tx_for_sig = self.serialize( self.inputs, self.outputs, for_sig = i )
+ for pubkey in redeem_pubkeys:
+ # check if we have the corresponding private key
+ if pubkey in keypairs.keys():
+ # add signature
+ sec = keypairs[pubkey]
+ compressed = is_compressed(sec)
+ pkey = regenerate_key(sec)
+ secexp = pkey.secret
+ private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
+ public_key = private_key.get_verifying_key()
+ sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der )
+ assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
+ signatures.append( sig.encode('hex') )
+ print_error("adding signature for", pubkey)
+
+ txin["signatures"] = signatures
+ is_complete = is_complete and len(signatures) == num
+
+ self.is_complete = is_complete
+ self.raw = self.serialize( self.inputs, self.outputs )
+
+
+ def deserialize(self):
+ vds = BCDataStream()
+ vds.write(self.raw.decode('hex'))
+ d = {}
+ start = vds.read_cursor
+ d['version'] = vds.read_int32()
+ n_vin = vds.read_compact_size()
+ d['inputs'] = []
+ for i in xrange(n_vin):
+ d['inputs'].append(self.parse_input(vds))
+ n_vout = vds.read_compact_size()
+ d['outputs'] = []
+ for i in xrange(n_vout):
+ d['outputs'].append(self.parse_output(vds, i))
+ d['lockTime'] = vds.read_uint32()
+ self.d = d
+ return self.d
+
+
+ def parse_input(self, 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()
+
+ if scriptSig:
+ pubkeys, signatures, address = get_address_from_input_script(scriptSig)
+ else:
+ pubkeys = []
+ signatures = []
+ address = None
+
+ d['address'] = address
+ d['signatures'] = signatures
+ return d
+
+
+ def parse_output(self, vds, i):
+ d = {}
+ d['value'] = vds.read_int64()
+ scriptPubKey = vds.read_bytes(vds.read_compact_size())
+ is_pubkey, address = get_address_from_output_script(scriptPubKey)
+ d['is_pubkey'] = is_pubkey
+ d['address'] = address
+ d['raw_output_script'] = scriptPubKey.encode('hex')
+ d['index'] = i
+ return d
+
+
+ def add_extra_addresses(self, txlist):
+ for i in self.inputs:
+ if i.get("address") == "(pubkey)":
+ prev_tx = txlist.get(i.get('prevout_hash'))
+ if prev_tx:
+ address, value = prev_tx.outputs[i.get('prevout_n')]
+ print_error("found pay-to-pubkey address:", address)
+ i["address"] = address
+
+
+ def has_address(self, addr):
+ found = False
+ for txin in self.inputs:
+ if addr == txin.get('address'):
+ found = True
+ break
+ for txout in self.outputs:
+ if addr == txout[0]:
+ found = True
+ break
+ return found
+
+
+ def get_value(self, addresses, prevout_values):
+ # return the balance for that tx
+ is_relevant = False
+ is_send = False
+ is_pruned = False
+ is_partial = False
+ v_in = v_out = v_out_mine = 0
+
+ for item in self.inputs:
+ addr = item.get('address')
+ if addr in addresses:
+ is_send = True
+ is_relevant = True
+ key = item['prevout_hash'] + ':%d'%item['prevout_n']
+ value = prevout_values.get( key )
+ if value is None:
+ is_pruned = True
+ else:
+ v_in += value
+ else:
+ is_partial = True
+
+ if not is_send: is_partial = False
+
+ for item in self.outputs:
+ addr, value = item
+ v_out += value
+ if addr in addresses:
+ v_out_mine += value
+ is_relevant = True
+
+ if is_pruned:
+ # some inputs are mine:
+ fee = None
+ if is_send:
+ v = v_out_mine - v_out
+ else:
+ # no input is mine
+ v = v_out_mine
+
+ else:
+ v = v_out_mine - v_in
+
+ if is_partial:
+ # some inputs are mine, but not all
+ fee = None
+ is_send = v < 0
+ else:
+ # all inputs are mine
+ fee = v_out - v_in
+
+ return is_relevant, is_send, v, fee
+
+ def as_dict(self):
+ import json
+ out = {
+ "hex":self.raw,
+ "complete":self.is_complete
+ }
+ if not self.is_complete:
+ extras = []
+ for i in self.inputs:
+ e = { 'txid':i['tx_hash'], 'vout':i['index'],
+ 'scriptPubKey':i.get('raw_output_script'),
+ 'KeyID':i.get('KeyID'),
+ 'redeemScript':i.get('redeemScript'),
+ 'signatures':i.get('signatures'),
+ 'pubkeys':i.get('pubkeys'),
+ }
+ extras.append(e)
+ self.input_info = extras
+
+ if self.input_info:
+ out['input_info'] = json.dumps(self.input_info).replace(' ','')
+
+ return out
+
+
+ def requires_fee(self, verifier):
+ # see https://en.bitcoin.it/wiki/Transaction_fees
+ threshold = 57600000
+ size = len(self.raw)/2
+ if size >= 10000:
+ return True
+
+ for o in self.outputs:
+ value = o[1]
+ if value < 1000000:
+ return True
+ sum = 0
+ for i in self.inputs:
+ age = verifier.get_confirmations(i["tx_hash"])[0]
+ sum += i["value"] * age
+ priority = sum / size
+ print_error(priority, threshold)
+ return priority < threshold
+
+
diff --git a/lib/wallet.py b/lib/wallet.py
@@ -33,6 +33,7 @@ import time
from util import print_msg, print_error, format_satoshis
from bitcoin import *
from account import *
+from transaction import Transaction
# AES encryption
EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
@@ -164,12 +165,17 @@ class Wallet:
self.load_accounts()
self.transactions = {}
- tx = storage.get('transactions',{})
- try:
- for k,v in tx.items(): self.transactions[k] = Transaction(v)
- except:
- print_msg("Warning: Cannot deserialize transactions. skipping")
-
+ tx_list = self.storage.get('transactions',{})
+ for k,v in tx_list.items():
+ tx = Transaction(v)
+ try:
+ tx = Transaction(v)
+ except:
+ print_msg("Warning: Cannot deserialize transactions. skipping")
+ continue
+
+ self.add_transaction(tx)
+
# not saved
self.prevout_values = {} # my own transaction outputs
self.spent_outputs = []
@@ -194,6 +200,17 @@ class Wallet:
self.transactions.pop(tx_hash)
+ def add_transaction(self, tx):
+ h = tx.hash()
+ self.transactions[h] = tx
+ # find the address corresponding to pay-to-pubkey inputs
+ tx.add_extra_addresses(self.transactions)
+ for o in tx.d.get('outputs'):
+ if o.get('is_pubkey'):
+ for tx2 in self.transactions.values():
+ tx2.add_extra_addresses({h:tx})
+
+
def set_up_to_date(self,b):
with self.lock: self.up_to_date = b
@@ -521,7 +538,7 @@ class Wallet:
def signrawtransaction(self, tx, input_info, private_keys, password):
- import deserialize
+
unspent_coins = self.get_unspent_coins()
seed = self.decode_seed(password)
@@ -587,7 +604,7 @@ class Wallet:
if redeem_script:
addr = hash_160_to_bc_address(hash_160(redeem_script.decode('hex')), 5)
else:
- addr = deserialize.get_address_from_output_script(txin["raw_output_script"].decode('hex'))
+ addr = transaction.get_address_from_output_script(txin["raw_output_script"].decode('hex'))
txin['address'] = addr
# add private keys that are in the wallet
@@ -1002,10 +1019,8 @@ class Wallet:
return
with self.transaction_lock:
- self.transactions[tx_hash] = tx
-
+ self.add_transaction(tx)
self.interface.pending_transactions_for_notifications.append(tx)
-
self.save_transactions()
if self.verifier and tx_height>0:
self.verifier.add(tx_hash, tx_height)
diff --git a/plugins/qrscanner.py b/plugins/qrscanner.py
@@ -5,7 +5,8 @@ from PyQt4.QtCore import Qt
from electrum_gui.i18n import _
import re
-from electrum.bitcoin import MIN_RELAY_TX_FEE, Transaction, is_valid
+from electrum import Transaction
+from electrum.bitcoin import MIN_RELAY_TX_FEE, is_valid
from electrum_gui.qrcodewidget import QRCodeWidget
import electrum_gui.bmp
import json
diff --git a/setup.py b/setup.py
@@ -67,7 +67,7 @@ setup(name = "Electrum",
'electrum.util',
'electrum.account',
'electrum.bitcoin',
- 'electrum.deserialize',
+ 'electrum.transaction',
'electrum.verifier',
'electrum_gui.gui_gtk',
'electrum_gui.qt_console',
