separate bitcoin related functions from wallet.py
This commit is contained in:
parent
728ae0d184
commit
5717b43661
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@ -1,3 +1,4 @@
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from wallet import Wallet, format_satoshis
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from wallet import Wallet, format_satoshis
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from interface import WalletSynchronizer, Interface, pick_random_server, DEFAULT_SERVERS
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from interface import WalletSynchronizer, Interface, pick_random_server, DEFAULT_SERVERS
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from simple_config import SimpleConfig
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from simple_config import SimpleConfig
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import bitcoin
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@ -0,0 +1,211 @@
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#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2011 thomasv@gitorious
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import hashlib, base64, ecdsa, re
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def rev_hex(s):
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return s.decode('hex')[::-1].encode('hex')
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def int_to_hex(i, length=1):
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s = hex(i)[2:].rstrip('L')
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s = "0"*(2*length - len(s)) + s
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return rev_hex(s)
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def Hash(data):
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return hashlib.sha256(hashlib.sha256(data).digest()).digest()
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############ functions from pywallet #####################
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addrtype = 0
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def hash_160(public_key):
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try:
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md = hashlib.new('ripemd160')
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md.update(hashlib.sha256(public_key).digest())
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return md.digest()
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except:
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import ripemd
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md = ripemd.new(hashlib.sha256(public_key).digest())
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return md.digest()
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def public_key_to_bc_address(public_key):
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h160 = hash_160(public_key)
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return hash_160_to_bc_address(h160)
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def hash_160_to_bc_address(h160):
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vh160 = chr(addrtype) + h160
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h = Hash(vh160)
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addr = vh160 + h[0:4]
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return b58encode(addr)
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def bc_address_to_hash_160(addr):
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bytes = b58decode(addr, 25)
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return bytes[1:21]
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def encode_point(pubkey, compressed=False):
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order = generator_secp256k1.order()
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p = pubkey.pubkey.point
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x_str = ecdsa.util.number_to_string(p.x(), order)
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y_str = ecdsa.util.number_to_string(p.y(), order)
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if compressed:
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return chr(2 + (p.y() & 1)) + x_str
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else:
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return chr(4) + pubkey.to_string() #x_str + y_str
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__b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
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__b58base = len(__b58chars)
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def b58encode(v):
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""" encode v, which is a string of bytes, to base58."""
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long_value = 0L
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for (i, c) in enumerate(v[::-1]):
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long_value += (256**i) * ord(c)
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result = ''
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while long_value >= __b58base:
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div, mod = divmod(long_value, __b58base)
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result = __b58chars[mod] + result
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long_value = div
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result = __b58chars[long_value] + result
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# Bitcoin does a little leading-zero-compression:
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# leading 0-bytes in the input become leading-1s
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nPad = 0
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for c in v:
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if c == '\0': nPad += 1
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else: break
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return (__b58chars[0]*nPad) + result
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def b58decode(v, length):
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""" decode v into a string of len bytes."""
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long_value = 0L
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for (i, c) in enumerate(v[::-1]):
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long_value += __b58chars.find(c) * (__b58base**i)
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result = ''
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while long_value >= 256:
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div, mod = divmod(long_value, 256)
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result = chr(mod) + result
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long_value = div
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result = chr(long_value) + result
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nPad = 0
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for c in v:
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if c == __b58chars[0]: nPad += 1
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else: break
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result = chr(0)*nPad + result
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if length is not None and len(result) != length:
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return None
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return result
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def EncodeBase58Check(vchIn):
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hash = Hash(vchIn)
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return b58encode(vchIn + hash[0:4])
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def DecodeBase58Check(psz):
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vchRet = b58decode(psz, None)
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key = vchRet[0:-4]
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csum = vchRet[-4:]
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hash = Hash(key)
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cs32 = hash[0:4]
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if cs32 != csum:
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return None
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else:
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return key
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def PrivKeyToSecret(privkey):
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return privkey[9:9+32]
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def SecretToASecret(secret):
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vchIn = chr(addrtype+128) + secret
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return EncodeBase58Check(vchIn)
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def ASecretToSecret(key):
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vch = DecodeBase58Check(key)
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if vch and vch[0] == chr(addrtype+128):
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return vch[1:]
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else:
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return False
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########### end pywallet functions #######################
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# secp256k1, http://www.oid-info.com/get/1.3.132.0.10
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_p = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2FL
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_r = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141L
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_b = 0x0000000000000000000000000000000000000000000000000000000000000007L
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_a = 0x0000000000000000000000000000000000000000000000000000000000000000L
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_Gx = 0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798L
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_Gy = 0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8L
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curve_secp256k1 = ecdsa.ellipticcurve.CurveFp( _p, _a, _b )
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generator_secp256k1 = ecdsa.ellipticcurve.Point( curve_secp256k1, _Gx, _Gy, _r )
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oid_secp256k1 = (1,3,132,0,10)
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SECP256k1 = ecdsa.curves.Curve("SECP256k1", curve_secp256k1, generator_secp256k1, oid_secp256k1 )
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def filter(s):
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out = re.sub('( [^\n]*|)\n','',s)
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out = out.replace(' ','')
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out = out.replace('\n','')
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return out
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def raw_tx( inputs, outputs, for_sig = None ):
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s = int_to_hex(1,4) + ' version\n'
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s += int_to_hex( len(inputs) ) + ' number of inputs\n'
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for i in range(len(inputs)):
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_, _, p_hash, p_index, p_script, pubkey, sig = inputs[i]
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s += p_hash.decode('hex')[::-1].encode('hex') + ' prev hash\n'
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s += int_to_hex(p_index,4) + ' prev index\n'
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if for_sig is None:
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sig = sig + chr(1) # hashtype
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script = int_to_hex( len(sig)) + ' push %d bytes\n'%len(sig)
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script += sig.encode('hex') + ' sig\n'
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pubkey = chr(4) + pubkey
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script += int_to_hex( len(pubkey)) + ' push %d bytes\n'%len(pubkey)
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script += pubkey.encode('hex') + ' pubkey\n'
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elif for_sig==i:
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script = p_script + ' scriptsig \n'
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else:
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script=''
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s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
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s += script
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s += "ffffffff" + ' sequence\n'
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s += int_to_hex( len(outputs) ) + ' number of outputs\n'
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for output in outputs:
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addr, amount = output
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s += int_to_hex( amount, 8) + ' amount: %d\n'%amount
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script = '76a9' # op_dup, op_hash_160
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script += '14' # push 0x14 bytes
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script += bc_address_to_hash_160(addr).encode('hex')
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script += '88ac' # op_equalverify, op_checksig
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s += int_to_hex( len(filter(script))/2 ) + ' script length \n'
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s += script + ' script \n'
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s += int_to_hex(0,4) # lock time
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if for_sig is not None: s += int_to_hex(1, 4) # hash type
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return s
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27
lib/util.py
27
lib/util.py
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@ -1,6 +1,5 @@
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import os
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import os, sys
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import platform
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import platform
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import sys
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def print_error(*args):
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def print_error(*args):
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# Stringify args
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# Stringify args
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sys.stderr.write(" ".join(args) + "\n")
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sys.stderr.write(" ".join(args) + "\n")
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sys.stderr.flush()
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sys.stderr.flush()
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def user_dir():
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def user_dir():
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if "HOME" in os.environ:
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if "HOME" in os.environ:
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return os.path.join(os.environ["HOME"], ".electrum")
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return os.path.join(os.environ["HOME"], ".electrum")
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else:
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else:
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raise BaseException("No home directory found in environment variables.")
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raise BaseException("No home directory found in environment variables.")
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def appdata_dir():
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def appdata_dir():
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"""Find the path to the application data directory; add an electrum folder and return path."""
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"""Find the path to the application data directory; add an electrum folder and return path."""
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if platform.system() == "Windows":
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if platform.system() == "Windows":
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else:
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else:
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raise Exception("Unknown system")
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raise Exception("Unknown system")
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def get_resource_path(*args):
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def get_resource_path(*args):
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return os.path.join(".", *args)
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return os.path.join(".", *args)
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def local_data_dir():
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def local_data_dir():
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"""Return path to the data folder."""
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"""Return path to the data folder."""
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assert sys.argv
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assert sys.argv
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@ -40,3 +43,23 @@ def local_data_dir():
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local_data = os.path.join(prefix_path, "data")
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local_data = os.path.join(prefix_path, "data")
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return local_data
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return local_data
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def format_satoshis(x, is_diff=False, num_zeros = 0):
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from decimal import Decimal
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s = Decimal(x)
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sign, digits, exp = s.as_tuple()
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digits = map(str, digits)
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while len(digits) < 9:
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digits.insert(0,'0')
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digits.insert(-8,'.')
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s = ''.join(digits).rstrip('0')
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if sign:
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s = '-' + s
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elif is_diff:
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s = "+" + s
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p = s.find('.')
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s += "0"*( 1 + num_zeros - ( len(s) - p ))
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s += " "*( 9 - ( len(s) - p ))
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s = " "*( 5 - ( p )) + s
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return s
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219
lib/wallet.py
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lib/wallet.py
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@ -30,233 +30,21 @@ import aes
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import ecdsa
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import ecdsa
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from ecdsa.util import string_to_number, number_to_string
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from ecdsa.util import string_to_number, number_to_string
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from util import print_error
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from util import print_error, user_dir, format_satoshis
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from util import user_dir
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from bitcoin import *
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############ functions from pywallet #####################
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addrtype = 0
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def hash_160(public_key):
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try:
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md = hashlib.new('ripemd160')
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md.update(hashlib.sha256(public_key).digest())
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return md.digest()
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except:
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import ripemd
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md = ripemd.new(hashlib.sha256(public_key).digest())
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return md.digest()
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def public_key_to_bc_address(public_key):
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h160 = hash_160(public_key)
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return hash_160_to_bc_address(h160)
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def hash_160_to_bc_address(h160):
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vh160 = chr(addrtype) + h160
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h = Hash(vh160)
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addr = vh160 + h[0:4]
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return b58encode(addr)
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def bc_address_to_hash_160(addr):
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bytes = b58decode(addr, 25)
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return bytes[1:21]
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def encode_point(pubkey, compressed=False):
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order = generator_secp256k1.order()
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p = pubkey.pubkey.point
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x_str = ecdsa.util.number_to_string(p.x(), order)
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y_str = ecdsa.util.number_to_string(p.y(), order)
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if compressed:
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return chr(2 + (p.y() & 1)) + x_str
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else:
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return chr(4) + pubkey.to_string() #x_str + y_str
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__b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
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__b58base = len(__b58chars)
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def b58encode(v):
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""" encode v, which is a string of bytes, to base58."""
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long_value = 0L
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for (i, c) in enumerate(v[::-1]):
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long_value += (256**i) * ord(c)
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result = ''
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while long_value >= __b58base:
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div, mod = divmod(long_value, __b58base)
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result = __b58chars[mod] + result
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long_value = div
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result = __b58chars[long_value] + result
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# Bitcoin does a little leading-zero-compression:
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# leading 0-bytes in the input become leading-1s
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nPad = 0
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for c in v:
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if c == '\0': nPad += 1
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else: break
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return (__b58chars[0]*nPad) + result
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def b58decode(v, length):
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""" decode v into a string of len bytes."""
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long_value = 0L
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for (i, c) in enumerate(v[::-1]):
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long_value += __b58chars.find(c) * (__b58base**i)
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result = ''
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while long_value >= 256:
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div, mod = divmod(long_value, 256)
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result = chr(mod) + result
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long_value = div
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|
||||||
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
|
# URL decode
|
||||||
_ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
|
_ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
|
||||||
urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
|
urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
|
||||||
|
|
||||||
|
# AES encryption
|
||||||
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))
|
EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
|
||||||
DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
|
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, num_zeros = 0):
|
|
||||||
from decimal import Decimal
|
|
||||||
s = Decimal(x)
|
|
||||||
sign, digits, exp = s.as_tuple()
|
|
||||||
digits = map(str, digits)
|
|
||||||
while len(digits) < 9:
|
|
||||||
digits.insert(0,'0')
|
|
||||||
digits.insert(-8,'.')
|
|
||||||
s = ''.join(digits).rstrip('0')
|
|
||||||
if sign:
|
|
||||||
s = '-' + s
|
|
||||||
elif is_diff:
|
|
||||||
s = "+" + s
|
|
||||||
|
|
||||||
p = s.find('.')
|
|
||||||
s += "0"*( 1 + num_zeros - ( len(s) - p ))
|
|
||||||
s += " "*( 9 - ( len(s) - p ))
|
|
||||||
s = " "*( 5 - ( p )) + s
|
|
||||||
return s
|
|
||||||
|
|
||||||
|
|
||||||
from version import ELECTRUM_VERSION, SEED_VERSION
|
from version import ELECTRUM_VERSION, SEED_VERSION
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
class Wallet:
|
class Wallet:
|
||||||
def __init__(self, config={}):
|
def __init__(self, config={}):
|
||||||
|
|
||||||
|
@ -285,7 +73,6 @@ class Wallet:
|
||||||
self.addressbook = config.get('contacts', []) # outgoing addresses, for payments
|
self.addressbook = config.get('contacts', []) # outgoing addresses, for payments
|
||||||
self.imported_keys = config.get('imported_keys',{})
|
self.imported_keys = config.get('imported_keys',{})
|
||||||
|
|
||||||
|
|
||||||
# not saved
|
# not saved
|
||||||
self.receipt = None # next receipt
|
self.receipt = None # next receipt
|
||||||
self.tx_history = {}
|
self.tx_history = {}
|
||||||
|
|
|
@ -2,21 +2,11 @@
|
||||||
|
|
||||||
import sys, hashlib
|
import sys, hashlib
|
||||||
from electrum import Interface
|
from electrum import Interface
|
||||||
|
from electrum.bitcoin import Hash, rev_hex, int_to_hex
|
||||||
|
|
||||||
"""validate a transaction (SPV)"""
|
"""validate a transaction (SPV)"""
|
||||||
|
|
||||||
|
|
||||||
Hash = lambda x: hashlib.sha256(hashlib.sha256(x).digest()).digest()
|
|
||||||
|
|
||||||
def rev_hex(s):
|
|
||||||
return s.decode('hex')[::-1].encode('hex')
|
|
||||||
|
|
||||||
def int_to_hex(i, length=1):
|
|
||||||
s = hex(i)[2:].rstrip('L')
|
|
||||||
s = "0"*(2*length - len(s)) + s
|
|
||||||
return rev_hex(s)
|
|
||||||
|
|
||||||
|
|
||||||
i = Interface({'server':'ecdsa.org:50002:s'})
|
i = Interface({'server':'ecdsa.org:50002:s'})
|
||||||
i.start()
|
i.start()
|
||||||
|
|
||||||
|
|
1
setup.py
1
setup.py
|
@ -59,6 +59,7 @@ setup(name = "Electrum",
|
||||||
'electrum.bmp',
|
'electrum.bmp',
|
||||||
'electrum.msqr',
|
'electrum.msqr',
|
||||||
'electrum.util',
|
'electrum.util',
|
||||||
|
'electrum.bitcoin',
|
||||||
'electrum.i18n'],
|
'electrum.i18n'],
|
||||||
description = "Lightweight Bitcoin Wallet",
|
description = "Lightweight Bitcoin Wallet",
|
||||||
author = "thomasv",
|
author = "thomasv",
|
||||||
|
|
Loading…
Reference in New Issue