You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
950 lines
34 KiB
950 lines
34 KiB
#!/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/>.
|
|
|
|
|
|
import sys, base64, os, re, hashlib, copy, operator, ast, threading, random
|
|
|
|
try:
|
|
import ecdsa
|
|
from ecdsa.util import string_to_number, number_to_string
|
|
except:
|
|
print "python-ecdsa does not seem to be installed. Try 'sudo easy_install ecdsa'"
|
|
sys.exit(1)
|
|
|
|
try:
|
|
import aes
|
|
except:
|
|
print "AES does not seem to be installed. Try 'sudo easy_install slowaes'"
|
|
sys.exit(1)
|
|
|
|
|
|
############ functions from pywallet #####################
|
|
|
|
addrtype = 0
|
|
|
|
def hash_160(public_key):
|
|
try:
|
|
md = hashlib.new('ripemd160')
|
|
md.update(hashlib.sha256(public_key).digest())
|
|
return md.digest()
|
|
except:
|
|
import ripemd
|
|
md = ripemd.new(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)
|
|
|
|
def bc_address_to_hash_160(addr):
|
|
bytes = b58decode(addr, 25)
|
|
return bytes[1:21]
|
|
|
|
__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
|
|
|
|
|
|
def Hash(data):
|
|
return hashlib.sha256(hashlib.sha256(data).digest()).digest()
|
|
|
|
def EncodeBase58Check(vchIn):
|
|
hash = Hash(vchIn)
|
|
return b58encode(vchIn + hash[0:4])
|
|
|
|
def DecodeBase58Check(psz):
|
|
vchRet = b58decode(psz, None)
|
|
key = vchRet[0:-4]
|
|
csum = vchRet[-4:]
|
|
hash = Hash(key)
|
|
cs32 = hash[0:4]
|
|
if cs32 != csum:
|
|
return None
|
|
else:
|
|
return key
|
|
|
|
def PrivKeyToSecret(privkey):
|
|
return privkey[9:9+32]
|
|
|
|
def SecretToASecret(secret):
|
|
vchIn = chr(addrtype+128) + secret
|
|
return EncodeBase58Check(vchIn)
|
|
|
|
def ASecretToSecret(key):
|
|
vch = DecodeBase58Check(key)
|
|
if vch and vch[0] == chr(addrtype+128):
|
|
return vch[1:]
|
|
else:
|
|
return False
|
|
|
|
########### end pywallet functions #######################
|
|
|
|
# URL decode
|
|
_ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
|
|
urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
|
|
|
|
|
|
def int_to_hex(i, length=1):
|
|
s = hex(i)[2:].rstrip('L')
|
|
s = "0"*(2*length - len(s)) + s
|
|
return s.decode('hex')[::-1].encode('hex')
|
|
|
|
|
|
# AES
|
|
EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
|
|
DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
|
|
|
|
|
|
|
|
# secp256k1, http://www.oid-info.com/get/1.3.132.0.10
|
|
_p = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2FL
|
|
_r = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141L
|
|
_b = 0x0000000000000000000000000000000000000000000000000000000000000007L
|
|
_a = 0x0000000000000000000000000000000000000000000000000000000000000000L
|
|
_Gx = 0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798L
|
|
_Gy = 0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8L
|
|
curve_secp256k1 = ecdsa.ellipticcurve.CurveFp( _p, _a, _b )
|
|
generator_secp256k1 = ecdsa.ellipticcurve.Point( curve_secp256k1, _Gx, _Gy, _r )
|
|
oid_secp256k1 = (1,3,132,0,10)
|
|
SECP256k1 = ecdsa.curves.Curve("SECP256k1", curve_secp256k1, generator_secp256k1, oid_secp256k1 )
|
|
|
|
|
|
def filter(s):
|
|
out = re.sub('( [^\n]*|)\n','',s)
|
|
out = out.replace(' ','')
|
|
out = out.replace('\n','')
|
|
return out
|
|
|
|
def raw_tx( inputs, outputs, for_sig = None ):
|
|
s = int_to_hex(1,4) + ' version\n'
|
|
s += int_to_hex( len(inputs) ) + ' number of inputs\n'
|
|
for i in range(len(inputs)):
|
|
_, _, p_hash, p_index, p_script, pubkey, sig = inputs[i]
|
|
s += p_hash.decode('hex')[::-1].encode('hex') + ' prev hash\n'
|
|
s += int_to_hex(p_index,4) + ' prev index\n'
|
|
if for_sig is None:
|
|
sig = sig + chr(1) # hashtype
|
|
script = int_to_hex( len(sig)) + ' push %d bytes\n'%len(sig)
|
|
script += sig.encode('hex') + ' sig\n'
|
|
pubkey = chr(4) + pubkey
|
|
script += int_to_hex( len(pubkey)) + ' push %d bytes\n'%len(pubkey)
|
|
script += pubkey.encode('hex') + ' pubkey\n'
|
|
elif for_sig==i:
|
|
script = p_script + ' scriptsig \n'
|
|
else:
|
|
script=''
|
|
s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
|
|
s += script
|
|
s += "ffffffff" + ' sequence\n'
|
|
s += int_to_hex( len(outputs) ) + ' number of outputs\n'
|
|
for output in outputs:
|
|
addr, amount = output
|
|
s += int_to_hex( amount, 8) + ' amount: %d\n'%amount
|
|
script = '76a9' # op_dup, op_hash_160
|
|
script += '14' # push 0x14 bytes
|
|
script += bc_address_to_hash_160(addr).encode('hex')
|
|
script += '88ac' # op_equalverify, op_checksig
|
|
s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
|
|
s += script + ' script \n'
|
|
s += int_to_hex(0,4) # lock time
|
|
if for_sig is not None: s += int_to_hex(1, 4) # hash type
|
|
return s
|
|
|
|
|
|
|
|
|
|
def format_satoshis(x, is_diff=False):
|
|
from decimal import Decimal
|
|
s = str( Decimal(x) /100000000 )
|
|
if is_diff and x>0:
|
|
s = "+" + s
|
|
if not '.' in s: s += '.'
|
|
p = s.find('.')
|
|
s += " "*( 9 - ( len(s) - p ))
|
|
s = " "*( 5 - ( p )) + s
|
|
return s
|
|
|
|
|
|
from version import ELECTRUM_VERSION, SEED_VERSION
|
|
from interface import DEFAULT_SERVERS
|
|
|
|
|
|
|
|
|
|
class Wallet:
|
|
def __init__(self, gui_callback = lambda: None):
|
|
|
|
self.electrum_version = ELECTRUM_VERSION
|
|
self.seed_version = SEED_VERSION
|
|
self.gui_callback = gui_callback
|
|
|
|
self.gap_limit = 5 # configuration
|
|
self.fee = 100000
|
|
self.master_public_key = ''
|
|
|
|
# saved fields
|
|
self.use_encryption = False
|
|
self.addresses = [] # receiving addresses visible for user
|
|
self.change_addresses = [] # addresses used as change
|
|
self.seed = '' # encrypted
|
|
self.history = {}
|
|
self.labels = {} # labels for addresses and transactions
|
|
self.aliases = {} # aliases for addresses
|
|
self.authorities = {} # trusted addresses
|
|
|
|
self.receipts = {} # signed URIs
|
|
self.receipt = None # next receipt
|
|
self.addressbook = [] # outgoing addresses, for payments
|
|
|
|
# not saved
|
|
self.tx_history = {}
|
|
|
|
self.imported_keys = {}
|
|
self.remote_url = None
|
|
|
|
self.was_updated = True
|
|
self.blocks = -1
|
|
self.banner = ''
|
|
self.up_to_date_event = threading.Event()
|
|
self.up_to_date_event.clear()
|
|
self.up_to_date = False
|
|
self.lock = threading.Lock()
|
|
self.tx_event = threading.Event()
|
|
|
|
#
|
|
self.addresses_waiting_for_status = []
|
|
self.addresses_waiting_for_history = []
|
|
self.pick_random_server()
|
|
|
|
|
|
|
|
def pick_random_server(self):
|
|
self.server = random.choice( DEFAULT_SERVERS ) # random choice when the wallet is created
|
|
|
|
def is_up_to_date(self):
|
|
return self.interface.responses.empty() and not ( self.addresses_waiting_for_status or self.addresses_waiting_for_history )
|
|
|
|
|
|
def set_server(self, server):
|
|
# raise an error if the format isnt correct
|
|
a,b,c = server.split(':')
|
|
b = int(b)
|
|
assert c in ['t','h','n']
|
|
# set the server
|
|
if server != self.server:
|
|
self.server = server
|
|
self.save()
|
|
self.interface.is_connected = False # this exits the polling loop
|
|
|
|
def set_path(self, wallet_path):
|
|
|
|
if wallet_path is not None:
|
|
self.path = wallet_path
|
|
else:
|
|
# backward compatibility: look for wallet file in the default data directory
|
|
if "HOME" in os.environ:
|
|
wallet_dir = os.path.join( os.environ["HOME"], '.electrum')
|
|
elif "LOCALAPPDATA" in os.environ:
|
|
wallet_dir = os.path.join( os.environ["LOCALAPPDATA"], 'Electrum' )
|
|
elif "APPDATA" in os.environ:
|
|
wallet_dir = os.path.join( os.environ["APPDATA"], 'Electrum' )
|
|
else:
|
|
raise BaseException("No home directory found in environment variables.")
|
|
|
|
if not os.path.exists( wallet_dir ): os.mkdir( wallet_dir )
|
|
self.path = os.path.join( wallet_dir, 'electrum.dat' )
|
|
|
|
def import_key(self, keypair, password):
|
|
address, key = keypair.split(':')
|
|
if not self.is_valid(address): return False
|
|
if address in self.all_addresses(): return False
|
|
b = ASecretToSecret( key )
|
|
if not b: return False
|
|
secexp = int( b.encode('hex'), 16)
|
|
private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve=SECP256k1 )
|
|
# sanity check
|
|
public_key = private_key.get_verifying_key()
|
|
if not address == public_key_to_bc_address( '04'.decode('hex') + public_key.to_string() ): return False
|
|
self.imported_keys[address] = self.pw_encode( key, password )
|
|
return True
|
|
|
|
def new_seed(self, password):
|
|
seed = "%032x"%ecdsa.util.randrange( pow(2,128) )
|
|
#self.init_mpk(seed)
|
|
# encrypt
|
|
self.seed = self.pw_encode( seed, password )
|
|
|
|
|
|
def init_mpk(self,seed):
|
|
# public key
|
|
curve = SECP256k1
|
|
secexp = self.stretch_key(seed)
|
|
master_private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
|
|
self.master_public_key = master_private_key.get_verifying_key().to_string()
|
|
|
|
def all_addresses(self):
|
|
return self.addresses + self.change_addresses + self.imported_keys.keys()
|
|
|
|
def is_mine(self, address):
|
|
return address in self.all_addresses()
|
|
|
|
def is_change(self, address):
|
|
return address in self.change_addresses
|
|
|
|
def is_valid(self,addr):
|
|
ADDRESS_RE = re.compile('[1-9A-HJ-NP-Za-km-z]{26,}\\Z')
|
|
if not ADDRESS_RE.match(addr): return False
|
|
try:
|
|
h = bc_address_to_hash_160(addr)
|
|
except:
|
|
return False
|
|
return addr == hash_160_to_bc_address(h)
|
|
|
|
def stretch_key(self,seed):
|
|
oldseed = seed
|
|
for i in range(100000):
|
|
seed = hashlib.sha256(seed + oldseed).digest()
|
|
return string_to_number( seed )
|
|
|
|
def get_sequence(self,n,for_change):
|
|
return string_to_number( Hash( "%d:%d:"%(n,for_change) + self.master_public_key ) )
|
|
|
|
def get_private_key(self, address, password):
|
|
""" Privatekey(type,n) = Master_private_key + H(n|S|type) """
|
|
order = generator_secp256k1.order()
|
|
|
|
if address in self.imported_keys.keys():
|
|
b = self.pw_decode( self.imported_keys[address], password )
|
|
b = ASecretToSecret( b )
|
|
secexp = int( b.encode('hex'), 16)
|
|
else:
|
|
if address in self.addresses:
|
|
n = self.addresses.index(address)
|
|
for_change = False
|
|
elif address in self.change_addresses:
|
|
n = self.change_addresses.index(address)
|
|
for_change = True
|
|
else:
|
|
raise BaseException("unknown address")
|
|
try:
|
|
seed = self.pw_decode( self.seed, password)
|
|
except:
|
|
raise BaseException("Invalid password")
|
|
secexp = self.stretch_key(seed)
|
|
secexp = ( secexp + self.get_sequence(n,for_change) ) % order
|
|
|
|
pk = number_to_string(secexp,order)
|
|
return pk
|
|
|
|
def msg_magic(self, message):
|
|
return "\x18Bitcoin Signed Message:\n" + chr( len(message) ) + message
|
|
|
|
def sign_message(self, address, message, password):
|
|
private_key = ecdsa.SigningKey.from_string( self.get_private_key(address, password), curve = SECP256k1 )
|
|
public_key = private_key.get_verifying_key()
|
|
signature = private_key.sign_digest( Hash( self.msg_magic( message ) ), sigencode = ecdsa.util.sigencode_string )
|
|
assert public_key.verify_digest( signature, Hash( self.msg_magic( message ) ), sigdecode = ecdsa.util.sigdecode_string)
|
|
for i in range(4):
|
|
sig = base64.b64encode( chr(27+i) + signature )
|
|
try:
|
|
self.verify_message( address, sig, message)
|
|
return sig
|
|
except:
|
|
continue
|
|
else:
|
|
raise BaseException("error: cannot sign message")
|
|
|
|
|
|
def verify_message(self, address, signature, message):
|
|
""" See http://www.secg.org/download/aid-780/sec1-v2.pdf for the math """
|
|
from ecdsa import numbertheory, ellipticcurve, util
|
|
import msqr
|
|
curve = curve_secp256k1
|
|
G = generator_secp256k1
|
|
order = G.order()
|
|
# extract r,s from signature
|
|
sig = base64.b64decode(signature)
|
|
if len(sig) != 65: raise BaseException("Wrong encoding")
|
|
r,s = util.sigdecode_string(sig[1:], order)
|
|
recid = ord(sig[0]) - 27
|
|
# 1.1
|
|
x = r + (recid/2) * order
|
|
# 1.3
|
|
alpha = ( x * x * x + curve.a() * x + curve.b() ) % curve.p()
|
|
beta = msqr.modular_sqrt(alpha, curve.p())
|
|
y = beta if (beta - recid) % 2 == 0 else curve.p() - beta
|
|
# 1.4 the constructor checks that nR is at infinity
|
|
R = ellipticcurve.Point(curve, x, y, order)
|
|
# 1.5 compute e from message:
|
|
h = Hash( self.msg_magic( message ) )
|
|
e = string_to_number(h)
|
|
minus_e = -e % order
|
|
# 1.6 compute Q = r^-1 (sR - eG)
|
|
inv_r = numbertheory.inverse_mod(r,order)
|
|
Q = inv_r * ( s * R + minus_e * G )
|
|
public_key = ecdsa.VerifyingKey.from_public_point( Q, curve = SECP256k1 )
|
|
# check that Q is the public key
|
|
public_key.verify_digest( sig[1:], h, sigdecode = ecdsa.util.sigdecode_string)
|
|
# check that we get the original signing address
|
|
addr = public_key_to_bc_address( '04'.decode('hex') + public_key.to_string() )
|
|
# print addr
|
|
if address != addr:
|
|
print "bad signature"
|
|
raise BaseException("Bad signature")
|
|
|
|
|
|
def create_new_address(self, for_change):
|
|
""" Publickey(type,n) = Master_public_key + H(n|S|type)*point """
|
|
curve = SECP256k1
|
|
n = len(self.change_addresses) if for_change else len(self.addresses)
|
|
z = self.get_sequence(n,for_change)
|
|
master_public_key = ecdsa.VerifyingKey.from_string( self.master_public_key, curve = SECP256k1 )
|
|
pubkey_point = master_public_key.pubkey.point + z*curve.generator
|
|
public_key2 = ecdsa.VerifyingKey.from_public_point( pubkey_point, curve = SECP256k1 )
|
|
address = public_key_to_bc_address( '04'.decode('hex') + public_key2.to_string() )
|
|
if for_change:
|
|
self.change_addresses.append(address)
|
|
else:
|
|
self.addresses.append(address)
|
|
|
|
self.history[address] = []
|
|
print address
|
|
return address
|
|
|
|
|
|
|
|
def synchronize(self):
|
|
if not self.master_public_key:
|
|
return []
|
|
|
|
new_addresses = []
|
|
while True:
|
|
if self.change_addresses == []:
|
|
new_addresses.append( self.create_new_address(True) )
|
|
continue
|
|
a = self.change_addresses[-1]
|
|
if self.history.get(a):
|
|
new_addresses.append( self.create_new_address(True) )
|
|
else:
|
|
break
|
|
|
|
n = self.gap_limit
|
|
while True:
|
|
if len(self.addresses) < n:
|
|
new_addresses.append( self.create_new_address(False) )
|
|
continue
|
|
if map( lambda a: self.history.get(a), self.addresses[-n:] ) == n*[[]]:
|
|
break
|
|
else:
|
|
new_addresses.append( self.create_new_address(False) )
|
|
|
|
if self.remote_url:
|
|
num = self.get_remote_number()
|
|
while len(self.addresses)<num:
|
|
new_addresses.append( self.create_new_address(False) )
|
|
|
|
return new_addresses
|
|
|
|
|
|
def get_remote_number(self):
|
|
import jsonrpclib
|
|
server = jsonrpclib.Server(self.remote_url)
|
|
out = server.getnum()
|
|
return out
|
|
|
|
def get_remote_mpk(self):
|
|
import jsonrpclib
|
|
server = jsonrpclib.Server(self.remote_url)
|
|
out = server.getkey()
|
|
return out
|
|
|
|
def is_found(self):
|
|
return (len(self.change_addresses) > 1 ) or ( len(self.addresses) > self.gap_limit )
|
|
|
|
def fill_addressbook(self):
|
|
for tx in self.tx_history.values():
|
|
if tx['value']<0:
|
|
for i in tx['outputs']:
|
|
if not self.is_mine(i) and i not in self.addressbook:
|
|
self.addressbook.append(i)
|
|
# redo labels
|
|
self.update_tx_labels()
|
|
|
|
|
|
def save(self):
|
|
s = {
|
|
'seed_version':self.seed_version,
|
|
'use_encryption':self.use_encryption,
|
|
'master_public_key': self.master_public_key.encode('hex'),
|
|
'fee':self.fee,
|
|
'server':self.server,
|
|
'seed':self.seed,
|
|
'addresses':self.addresses,
|
|
'change_addresses':self.change_addresses,
|
|
'history':self.history,
|
|
'labels':self.labels,
|
|
'contacts':self.addressbook,
|
|
'imported_keys':self.imported_keys,
|
|
'aliases':self.aliases,
|
|
'authorities':self.authorities,
|
|
'receipts':self.receipts,
|
|
}
|
|
f = open(self.path,"w")
|
|
f.write( repr(s) )
|
|
f.close()
|
|
|
|
def read(self):
|
|
import interface
|
|
|
|
upgrade_msg = """This wallet seed is deprecated. Please run upgrade.py for a diagnostic."""
|
|
self.file_exists = False
|
|
try:
|
|
f = open(self.path,"r")
|
|
data = f.read()
|
|
f.close()
|
|
except:
|
|
return
|
|
data = interface.old_to_new(data)
|
|
try:
|
|
d = ast.literal_eval( data )
|
|
self.seed_version = d.get('seed_version')
|
|
self.master_public_key = d.get('master_public_key').decode('hex')
|
|
self.use_encryption = d.get('use_encryption')
|
|
self.fee = int( d.get('fee') )
|
|
self.seed = d.get('seed')
|
|
self.server = d.get('server')
|
|
#blocks = d.get('blocks')
|
|
self.addresses = d.get('addresses')
|
|
self.change_addresses = d.get('change_addresses')
|
|
self.history = d.get('history')
|
|
self.labels = d.get('labels')
|
|
self.addressbook = d.get('contacts')
|
|
self.imported_keys = d.get('imported_keys',{})
|
|
self.aliases = d.get('aliases',{})
|
|
self.authorities = d.get('authorities',{})
|
|
self.receipts = d.get('receipts',{})
|
|
except:
|
|
raise BaseException("cannot read wallet file")
|
|
|
|
self.update_tx_history()
|
|
|
|
if self.seed_version != SEED_VERSION:
|
|
raise BaseException(upgrade_msg)
|
|
|
|
if self.remote_url: assert self.master_public_key.encode('hex') == self.get_remote_mpk()
|
|
|
|
self.file_exists = True
|
|
|
|
|
|
|
|
|
|
def get_addr_balance(self, addr):
|
|
assert self.is_mine(addr)
|
|
h = self.history.get(addr,[])
|
|
c = u = 0
|
|
for item in h:
|
|
v = item['value']
|
|
if item['height']:
|
|
c += v
|
|
else:
|
|
u += v
|
|
return c, u
|
|
|
|
def get_balance(self):
|
|
conf = unconf = 0
|
|
for addr in self.all_addresses():
|
|
c, u = self.get_addr_balance(addr)
|
|
conf += c
|
|
unconf += u
|
|
return conf, unconf
|
|
|
|
|
|
def choose_tx_inputs( self, amount, fixed_fee, from_addr = None ):
|
|
""" todo: minimize tx size """
|
|
total = 0
|
|
fee = self.fee if fixed_fee is None else fixed_fee
|
|
|
|
coins = []
|
|
domain = [from_addr] if from_addr else self.all_addresses()
|
|
for addr in domain:
|
|
h = self.history.get(addr)
|
|
if h is None: continue
|
|
for item in h:
|
|
if item.get('raw_output_script'):
|
|
coins.append( (addr,item))
|
|
|
|
coins = sorted( coins, key = lambda x: x[1]['timestamp'] )
|
|
inputs = []
|
|
for c in coins:
|
|
addr, item = c
|
|
v = item.get('value')
|
|
total += v
|
|
inputs.append((addr, v, item['tx_hash'], item['index'], item['raw_output_script'], None, None) )
|
|
fee = self.fee*len(inputs) if fixed_fee is None else fixed_fee
|
|
if total >= amount + fee: break
|
|
else:
|
|
#print "not enough funds: %d %d"%(total, fee)
|
|
inputs = []
|
|
return inputs, total, fee
|
|
|
|
def choose_tx_outputs( self, to_addr, amount, fee, total, change_addr=None ):
|
|
outputs = [ (to_addr, amount) ]
|
|
change_amount = total - ( amount + fee )
|
|
if change_amount != 0:
|
|
# normally, the update thread should ensure that the last change address is unused
|
|
if not change_addr:
|
|
change_addr = self.change_addresses[-1]
|
|
outputs.append( ( change_addr, change_amount) )
|
|
return outputs
|
|
|
|
def sign_inputs( self, inputs, outputs, password ):
|
|
s_inputs = []
|
|
for i in range(len(inputs)):
|
|
addr, v, p_hash, p_pos, p_scriptPubKey, _, _ = inputs[i]
|
|
private_key = ecdsa.SigningKey.from_string( self.get_private_key(addr, password), curve = SECP256k1 )
|
|
public_key = private_key.get_verifying_key()
|
|
pubkey = public_key.to_string()
|
|
tx = filter( raw_tx( inputs, outputs, for_sig = i ) )
|
|
sig = private_key.sign_digest( Hash( tx.decode('hex') ), sigencode = ecdsa.util.sigencode_der )
|
|
assert public_key.verify_digest( sig, Hash( tx.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
|
|
s_inputs.append( (addr, v, p_hash, p_pos, p_scriptPubKey, pubkey, sig) )
|
|
return s_inputs
|
|
|
|
def pw_encode(self, s, password):
|
|
if password:
|
|
secret = Hash(password)
|
|
return EncodeAES(secret, s)
|
|
else:
|
|
return s
|
|
|
|
def pw_decode(self, s, password):
|
|
if password is not None:
|
|
secret = Hash(password)
|
|
d = DecodeAES(secret, s)
|
|
if s == self.seed:
|
|
try:
|
|
d.decode('hex')
|
|
except:
|
|
raise BaseException("Invalid password")
|
|
return d
|
|
else:
|
|
return s
|
|
|
|
def get_status(self, address):
|
|
h = self.history.get(address)
|
|
if not h:
|
|
status = None
|
|
else:
|
|
lastpoint = h[-1]
|
|
status = lastpoint['block_hash']
|
|
if status == 'mempool':
|
|
status = status + ':%d'% len(h)
|
|
return status
|
|
|
|
def receive_status_callback(self, addr, status):
|
|
with self.lock:
|
|
if self.get_status(addr) != status:
|
|
#print "updating status for", addr, status
|
|
self.addresses_waiting_for_history.append(addr)
|
|
self.interface.get_history(addr)
|
|
if addr in self.addresses_waiting_for_status:
|
|
self.addresses_waiting_for_status.remove(addr)
|
|
|
|
def receive_history_callback(self, addr, data):
|
|
#print "updating history for", addr
|
|
with self.lock:
|
|
self.history[addr] = data
|
|
self.update_tx_history()
|
|
self.save()
|
|
if addr in self.addresses_waiting_for_history: self.addresses_waiting_for_history.remove(addr)
|
|
|
|
def get_tx_history(self):
|
|
lines = self.tx_history.values()
|
|
lines = sorted(lines, key=operator.itemgetter("timestamp"))
|
|
return lines
|
|
|
|
def update_tx_history(self):
|
|
self.tx_history= {}
|
|
for addr in self.all_addresses():
|
|
h = self.history.get(addr)
|
|
if h is None: continue
|
|
for tx in h:
|
|
tx_hash = tx['tx_hash']
|
|
line = self.tx_history.get(tx_hash)
|
|
if not line:
|
|
self.tx_history[tx_hash] = copy.copy(tx)
|
|
line = self.tx_history.get(tx_hash)
|
|
else:
|
|
line['value'] += tx['value']
|
|
if line['height'] == 0:
|
|
line['timestamp'] = 1e12
|
|
self.update_tx_labels()
|
|
|
|
def update_tx_labels(self):
|
|
for tx in self.tx_history.values():
|
|
default_label = ''
|
|
if tx['value']<0:
|
|
for o_addr in tx['outputs']:
|
|
if not self.is_change(o_addr):
|
|
dest_label = self.labels.get(o_addr)
|
|
if dest_label:
|
|
default_label = 'to: ' + dest_label
|
|
else:
|
|
default_label = 'to: ' + o_addr
|
|
else:
|
|
for o_addr in tx['outputs']:
|
|
if self.is_mine(o_addr) and not self.is_change(o_addr):
|
|
dest_label = self.labels.get(o_addr)
|
|
if dest_label:
|
|
default_label = 'at: ' + dest_label
|
|
else:
|
|
default_label = 'at: ' + o_addr
|
|
tx['default_label'] = default_label
|
|
|
|
def mktx(self, to_address, amount, label, password, fee=None, change_addr=None, from_addr= None):
|
|
if not self.is_valid(to_address):
|
|
raise BaseException("Invalid address")
|
|
inputs, total, fee = self.choose_tx_inputs( amount, fee, from_addr )
|
|
if not inputs:
|
|
raise BaseException("Not enough funds")
|
|
outputs = self.choose_tx_outputs( to_address, amount, fee, total, change_addr )
|
|
s_inputs = self.sign_inputs( inputs, outputs, password )
|
|
|
|
tx = filter( raw_tx( s_inputs, outputs ) )
|
|
if to_address not in self.addressbook:
|
|
self.addressbook.append(to_address)
|
|
if label:
|
|
tx_hash = Hash(tx.decode('hex') )[::-1].encode('hex')
|
|
self.labels[tx_hash] = label
|
|
|
|
return tx
|
|
|
|
def sendtx(self, tx):
|
|
tx_hash = Hash(tx.decode('hex') )[::-1].encode('hex')
|
|
self.tx_event.clear()
|
|
self.interface.send([('blockchain.transaction.broadcast', [tx])])
|
|
self.tx_event.wait()
|
|
out = self.tx_result
|
|
if out != tx_hash:
|
|
return False, "error: " + out
|
|
if self.receipt:
|
|
self.receipts[tx_hash] = self.receipt
|
|
self.receipt = None
|
|
return True, out
|
|
|
|
|
|
def read_alias(self, alias):
|
|
# this might not be the right place for this function.
|
|
import urllib
|
|
|
|
m1 = re.match('([\w\-\.]+)@((\w[\w\-]+\.)+[\w\-]+)', alias)
|
|
m2 = re.match('((\w[\w\-]+\.)+[\w\-]+)', alias)
|
|
if m1:
|
|
url = 'http://' + m1.group(2) + '/bitcoin.id/' + m1.group(1)
|
|
elif m2:
|
|
url = 'http://' + alias + '/bitcoin.id'
|
|
else:
|
|
return ''
|
|
try:
|
|
lines = urllib.urlopen(url).readlines()
|
|
except:
|
|
return ''
|
|
|
|
# line 0
|
|
line = lines[0].strip().split(':')
|
|
if len(line) == 1:
|
|
auth_name = None
|
|
target = signing_addr = line[0]
|
|
else:
|
|
target, auth_name, signing_addr, signature = line
|
|
msg = "alias:%s:%s:%s"%(alias,target,auth_name)
|
|
print msg, signature
|
|
self.verify_message(signing_addr, signature, msg)
|
|
|
|
# other lines are signed updates
|
|
for line in lines[1:]:
|
|
line = line.strip()
|
|
if not line: continue
|
|
line = line.split(':')
|
|
previous = target
|
|
print repr(line)
|
|
target, signature = line
|
|
self.verify_message(previous, signature, "alias:%s:%s"%(alias,target))
|
|
|
|
if not self.is_valid(target):
|
|
raise BaseException("Invalid bitcoin address")
|
|
|
|
return target, signing_addr, auth_name
|
|
|
|
def update_password(self, seed, new_password):
|
|
if new_password == '': new_password = None
|
|
self.use_encryption = (new_password != None)
|
|
self.seed = self.pw_encode( seed, new_password)
|
|
for k in self.imported_keys.keys():
|
|
a = self.imported_keys[k]
|
|
b = self.pw_decode(a, password)
|
|
c = self.pw_encode(b, new_password)
|
|
self.imported_keys[k] = c
|
|
self.save()
|
|
|
|
def get_alias(self, alias, interactive = False, show_message=None, question = None):
|
|
try:
|
|
target, signing_address, auth_name = self.read_alias(alias)
|
|
except BaseException, e:
|
|
# raise exception if verify fails (verify the chain)
|
|
if interactive:
|
|
show_message("Alias error: " + e.message)
|
|
return
|
|
|
|
print target, signing_address, auth_name
|
|
|
|
if auth_name is None:
|
|
a = self.aliases.get(alias)
|
|
if not a:
|
|
msg = "Warning: the alias '%s' is self-signed.\nThe signing address is %s.\n\nDo you want to add this alias to your list of contacts?"%(alias,signing_address)
|
|
if interactive and question( msg ):
|
|
self.aliases[alias] = (signing_address, target)
|
|
else:
|
|
target = None
|
|
else:
|
|
if signing_address != a[0]:
|
|
msg = "Warning: the key of alias '%s' has changed since your last visit! It is possible that someone is trying to do something nasty!!!\nDo you accept to change your trusted key?"%alias
|
|
if interactive and question( msg ):
|
|
self.aliases[alias] = (signing_address, target)
|
|
else:
|
|
target = None
|
|
else:
|
|
if signing_address not in self.authorities.keys():
|
|
msg = "The alias: '%s' links to %s\n\nWarning: this alias was signed by an unknown key.\nSigning authority: %s\nSigning address: %s\n\nDo you want to add this key to your list of trusted keys?"%(alias,target,auth_name,signing_address)
|
|
if interactive and question( msg ):
|
|
self.authorities[signing_address] = auth_name
|
|
else:
|
|
target = None
|
|
|
|
if target:
|
|
self.aliases[alias] = (signing_address, target)
|
|
|
|
return target
|
|
|
|
|
|
def parse_url(self, url, show_message, question):
|
|
o = url[8:].split('?')
|
|
address = o[0]
|
|
if len(o)>1:
|
|
params = o[1].split('&')
|
|
else:
|
|
params = []
|
|
|
|
amount = label = message = signature = identity = ''
|
|
for p in params:
|
|
k,v = p.split('=')
|
|
uv = urldecode(v)
|
|
if k == 'amount': amount = uv
|
|
elif k == 'message': message = uv
|
|
elif k == 'label': label = uv
|
|
elif k == 'signature':
|
|
identity, signature = uv.split(':')
|
|
url = url.replace('&%s=%s'%(k,v),'')
|
|
else:
|
|
print k,v
|
|
|
|
if signature:
|
|
if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', identity):
|
|
signing_address = self.get_alias(identity, True, show_message, question)
|
|
elif self.is_valid(identity):
|
|
signing_address = identity
|
|
else:
|
|
signing_address = None
|
|
if not signing_address:
|
|
return
|
|
try:
|
|
self.verify_message(signing_address, signature, url )
|
|
self.receipt = (signing_address, signature, url)
|
|
except:
|
|
show_message('Warning: the URI contains a bad signature.\nThe identity of the recipient cannot be verified.')
|
|
address = amount = label = identity = message = ''
|
|
|
|
if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', address):
|
|
payto_address = self.get_alias(address, True, show_message, question)
|
|
if payto_address:
|
|
address = address + ' <' + payto_address + '>'
|
|
|
|
return address, amount, label, message, signature, identity, url
|
|
|
|
|
|
def update(self):
|
|
self.interface.poke()
|
|
self.up_to_date_event.wait()
|
|
|
|
|
|
|
|
|