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1371 lines
48 KiB
1371 lines
48 KiB
#!/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 sys
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import base64
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import os
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import re
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import hashlib
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import copy
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import operator
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import ast
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import threading
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import random
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import aes
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import Queue
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import time
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from util import print_msg, print_error, user_dir, format_satoshis
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from bitcoin import *
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from account import *
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# AES encryption
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EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
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DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
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def pw_encode(s, password):
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if password:
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secret = Hash(password)
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return EncodeAES(secret, s)
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else:
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return s
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def pw_decode(s, password):
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if password is not None:
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secret = Hash(password)
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try:
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d = DecodeAES(secret, s)
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except:
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raise BaseException('Invalid password')
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return d
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else:
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return s
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from version import ELECTRUM_VERSION, SEED_VERSION
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class Wallet:
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def __init__(self, config={}):
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self.config = config
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self.electrum_version = ELECTRUM_VERSION
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self.gap_limit_for_change = 3 # constant
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# saved fields
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self.seed_version = config.get('seed_version', SEED_VERSION)
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self.gap_limit = config.get('gap_limit', 5)
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self.use_change = config.get('use_change',True)
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self.fee = int(config.get('fee_per_kb',20000))
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self.num_zeros = int(config.get('num_zeros',0))
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self.use_encryption = config.get('use_encryption', False)
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self.seed = config.get('seed', '') # encrypted
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self.labels = config.get('labels', {})
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self.frozen_addresses = config.get('frozen_addresses',[])
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self.prioritized_addresses = config.get('prioritized_addresses',[])
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self.addressbook = config.get('contacts', [])
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self.imported_keys = config.get('imported_keys',{})
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self.history = config.get('addr_history',{}) # address -> list(txid, height)
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self.master_public_keys = config.get('master_public_keys',{})
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self.master_private_keys = config.get('master_private_keys', {})
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self.load_accounts(config)
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self.transactions = {}
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tx = config.get('transactions',{})
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try:
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for k,v in tx.items(): self.transactions[k] = Transaction(v)
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except:
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print_msg("Warning: Cannot deserialize transactions. skipping")
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# not saved
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self.prevout_values = {} # my own transaction outputs
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self.spent_outputs = []
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# spv
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self.verifier = None
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# there is a difference between wallet.up_to_date and interface.is_up_to_date()
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# interface.is_up_to_date() returns true when all requests have been answered and processed
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# wallet.up_to_date is true when the wallet is synchronized (stronger requirement)
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self.up_to_date = False
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self.lock = threading.Lock()
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self.transaction_lock = threading.Lock()
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self.tx_event = threading.Event()
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if self.seed_version != SEED_VERSION:
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raise ValueError("This wallet seed is deprecated. Please run upgrade.py for a diagnostic.")
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for tx_hash, tx in self.transactions.items():
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if self.check_new_tx(tx_hash, tx):
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self.update_tx_outputs(tx_hash)
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else:
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print_error("unreferenced tx", tx_hash)
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self.transactions.pop(tx_hash)
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def set_up_to_date(self,b):
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with self.lock: self.up_to_date = b
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def is_up_to_date(self):
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with self.lock: return self.up_to_date
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def update(self):
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self.up_to_date = False
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self.interface.poke('synchronizer')
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while not self.is_up_to_date(): time.sleep(0.1)
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def import_key(self, sec, password):
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# check password
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seed = self.decode_seed(password)
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try:
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address = address_from_private_key(sec)
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except:
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raise BaseException('Invalid private key')
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if self.is_mine(address):
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raise BaseException('Address already in wallet')
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# store the originally requested keypair into the imported keys table
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self.imported_keys[address] = pw_encode(sec, password )
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self.config.set_key('imported_keys', self.imported_keys, True)
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return address
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def delete_imported_key(self, addr):
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if addr in self.imported_keys:
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self.imported_keys.pop(addr)
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self.config.set_key('imported_keys', self.imported_keys, True)
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def init_seed(self, seed):
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if self.seed: raise BaseException("a seed exists")
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if not seed:
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seed = random_seed(128)
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self.seed = seed
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def save_seed(self):
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self.config.set_key('seed', self.seed, True)
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self.config.set_key('seed_version', self.seed_version, True)
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master_k, master_c, master_K, master_cK = bip32_init(self.seed)
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# normal accounts
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k0, c0, K0, cK0 = bip32_private_derivation(master_k, master_c, "m/", "m/0'/")
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# p2sh 2of2
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k1, c1, K1, cK1 = bip32_private_derivation(master_k, master_c, "m/", "m/1'/")
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k2, c2, K2, cK2 = bip32_private_derivation(master_k, master_c, "m/", "m/2'/")
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# p2sh 2of3
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k3, c3, K3, cK3 = bip32_private_derivation(master_k, master_c, "m/", "m/3'/")
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k4, c4, K4, cK4 = bip32_private_derivation(master_k, master_c, "m/", "m/4'/")
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k5, c5, K5, cK5 = bip32_private_derivation(master_k, master_c, "m/", "m/5'/")
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self.master_public_keys = {
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"m/0'/": (c0, K0, cK0),
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"m/1'/": (c1, K1, cK1),
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"m/2'/": (c2, K2, cK2),
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"m/3'/": (c3, K3, cK3),
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"m/4'/": (c4, K4, cK4),
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"m/5'/": (c5, K5, cK5)
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}
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self.master_private_keys = {
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"m/0'/": k0,
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"m/1'/": k1,
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"m/2'/": k2,
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"m/3'/": k3,
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"m/4'/": k4,
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"m/5'/": k5
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}
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self.config.set_key('master_public_keys', self.master_public_keys, True)
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self.config.set_key('master_private_keys', self.master_private_keys, True)
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# create default account
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self.create_account('Main account')
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def find_root_by_master_key(self, c, K):
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for key, v in self.master_public_keys.items():
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if key == "m/":continue
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cc, KK, _ = v
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if (c == cc) and (K == KK):
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return key
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def deseed_root(self, seed, password):
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# for safety, we ask the user to enter their seed
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assert seed == self.decode_seed(password)
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self.seed = ''
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self.config.set_key('seed', '', True)
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def deseed_branch(self, k):
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# check that parent has no seed
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assert self.seed == ''
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self.master_private_keys.pop(k)
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self.config.set_key('master_private_keys', self.master_private_keys, True)
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def account_id(self, account_type, i):
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if account_type is None:
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return "m/0'/%d"%i
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elif account_type == '2of2':
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return "m/1'/%d & m/2'/%d"%(i,i)
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elif account_type == '2of3':
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return "m/3'/%d & m/4'/%d & m/5'/%d"%(i,i,i)
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else:
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raise BaseException('unknown account type')
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def num_accounts(self, account_type):
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keys = self.accounts.keys()
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i = 0
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while True:
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account_id = self.account_id(account_type, i)
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if account_id not in keys: break
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i += 1
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return i
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def create_account(self, name, account_type = None):
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i = self.num_accounts(account_type)
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account_id = self.account_id(account_type,i)
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if account_type is None:
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master_c0, master_K0, _ = self.master_public_keys["m/0'/"]
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c0, K0, cK0 = bip32_public_derivation(master_c0.decode('hex'), master_K0.decode('hex'), "m/0'/", "m/0'/%d"%i)
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account = BIP32_Account({ 'c':c0, 'K':K0, 'cK':cK0 })
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elif account_type == '2of2':
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master_c1, master_K1, _ = self.master_public_keys["m/1'/"]
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c1, K1, cK1 = bip32_public_derivation(master_c1.decode('hex'), master_K1.decode('hex'), "m/1'/", "m/1'/%d"%i)
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master_c2, master_K2, _ = self.master_public_keys["m/2'/"]
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c2, K2, cK2 = bip32_public_derivation(master_c2.decode('hex'), master_K2.decode('hex'), "m/2'/", "m/2'/%d"%i)
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account = BIP32_Account_2of2({ 'c':c1, 'K':K1, 'cK':cK1, 'c2':c2, 'K2':K2, 'cK2':cK2 })
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elif account_type == '2of3':
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master_c3, master_K3, _ = self.master_public_keys["m/3'/"]
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c3, K3, cK3 = bip32_public_derivation(master_c3.decode('hex'), master_K3.decode('hex'), "m/3'/", "m/3'/%d"%i)
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master_c4, master_K4, _ = self.master_public_keys["m/4'/"]
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c4, K4, cK4 = bip32_public_derivation(master_c4.decode('hex'), master_K4.decode('hex'), "m/4'/", "m/4'/%d"%i)
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master_c5, master_K5, _ = self.master_public_keys["m/5'/"]
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c5, K5, cK5 = bip32_public_derivation(master_c5.decode('hex'), master_K5.decode('hex'), "m/5'/", "m/5'/%d"%i)
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account = BIP32_Account_2of3({ 'c':c3, 'K':K3, 'cK':cK3, 'c2':c4, 'K2':K4, 'cK2':cK4, 'c3':c5, 'K3':K5, 'cK3':cK5 })
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self.accounts[account_id] = account
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self.save_accounts()
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self.labels[account_id] = name
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self.config.set_key('labels', self.labels, True)
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def save_accounts(self):
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d = {}
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for k, v in self.accounts.items():
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d[k] = v.dump()
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self.config.set_key('accounts', d, True)
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def load_accounts(self, config):
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d = config.get('accounts', {})
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self.accounts = {}
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for k, v in d.items():
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if '&' in k:
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self.accounts[k] = BIP32_Account_2of2(v)
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else:
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self.accounts[k] = BIP32_Account(v)
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def addresses(self, include_change = True):
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o = self.get_account_addresses(-1, include_change)
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for a in self.accounts.keys():
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o += self.get_account_addresses(a, include_change)
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return o
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def is_mine(self, address):
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return address in self.addresses(True)
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def is_change(self, address):
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if not self.is_mine(address): return False
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if address in self.imported_keys.keys(): return False
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acct, s = self.get_address_index(address)
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return s[0] == 1
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def get_master_public_key(self):
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raise
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return self.config.get("master_public_key")
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def get_master_private_key(self, account, password):
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master_k = pw_decode( self.master_private_keys[account], password)
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master_c, master_K, master_Kc = self.master_public_keys[account]
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try:
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K, Kc = get_pubkeys_from_secret(master_k.decode('hex'))
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assert K.encode('hex') == master_K
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except:
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raise BaseException("Invalid password")
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return master_k
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def get_address_index(self, address):
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if address in self.imported_keys.keys():
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return -1, None
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for account in self.accounts.keys():
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for for_change in [0,1]:
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addresses = self.accounts[account].get_addresses(for_change)
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for addr in addresses:
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if address == addr:
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return account, (for_change, addresses.index(addr))
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raise BaseException("not found")
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def rebase_sequence(self, account, sequence):
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c, i = sequence
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dd = []
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for a in account.split('&'):
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s = a.strip()
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m = re.match("(m/\d+'/)(\d+)", s)
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root = m.group(1)
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num = int(m.group(2))
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dd.append( (root, [num,c,i] ) )
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return dd
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def get_keyID(self, account, sequence):
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rs = self.rebase_sequence(account, sequence)
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dd = []
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for root, public_sequence in rs:
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c, K, _ = self.master_public_keys[root]
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s = '/' + '/'.join( map(lambda x:str(x), public_sequence) )
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dd.append( 'bip32(%s,%s,%s)'%(c,K, s) )
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return '&'.join(dd)
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def get_public_key(self, address):
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account, sequence = self.get_address_index(address)
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return self.accounts[account].get_pubkey( *sequence )
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def decode_seed(self, password):
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seed = pw_decode(self.seed, password)
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#todo: #self.sequences[0].check_seed(seed)
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return seed
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def get_private_key(self, address, password):
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out = []
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if address in self.imported_keys.keys():
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out.append( pw_decode( self.imported_keys[address], password ) )
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else:
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account, sequence = self.get_address_index(address)
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# assert address == self.accounts[account].get_address(*sequence)
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rs = self.rebase_sequence( account, sequence)
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for root, public_sequence in rs:
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if root not in self.master_private_keys.keys(): continue
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master_k = self.get_master_private_key(root, password)
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master_c, _, _ = self.master_public_keys[root]
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pk = bip32_private_key( public_sequence, master_k.decode('hex'), master_c.decode('hex'))
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out.append(pk)
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return out
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def signrawtransaction(self, tx, input_info, private_keys, password):
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import deserialize
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unspent_coins = self.get_unspent_coins()
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seed = self.decode_seed(password)
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# build a list of public/private keys
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keypairs = {}
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for sec in private_keys:
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pubkey = public_key_from_private_key(sec)
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keypairs[ pubkey ] = sec
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for txin in tx.inputs:
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# convert to own format
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txin['tx_hash'] = txin['prevout_hash']
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txin['index'] = txin['prevout_n']
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for item in input_info:
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if item.get('txid') == txin['tx_hash'] and item.get('vout') == txin['index']:
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txin['raw_output_script'] = item['scriptPubKey']
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txin['redeemScript'] = item.get('redeemScript')
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txin['KeyID'] = item.get('KeyID')
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break
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else:
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for item in unspent_coins:
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if txin['tx_hash'] == item['tx_hash'] and txin['index'] == item['index']:
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print_error( "tx input is in unspent coins" )
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txin['raw_output_script'] = item['raw_output_script']
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account, sequence = self.get_address_index(item['address'])
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if account != -1:
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txin['redeemScript'] = self.accounts[account].redeem_script(sequence)
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break
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else:
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raise BaseException("Unknown transaction input. Please provide the 'input_info' parameter, or synchronize this wallet")
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# if available, derive private_keys from KeyID
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keyid = txin.get('KeyID')
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if keyid:
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roots = []
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for s in keyid.split('&'):
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m = re.match("bip32\(([0-9a-f]+),([0-9a-f]+),(/\d+/\d+/\d+)", s)
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if not m: continue
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c = m.group(1)
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K = m.group(2)
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sequence = m.group(3)
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root = self.find_root_by_master_key(c,K)
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if not root: continue
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sequence = map(lambda x:int(x), sequence.strip('/').split('/'))
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root = root + '%d'%sequence[0]
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sequence = sequence[1:]
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roots.append((root,sequence))
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account_id = " & ".join( map(lambda x:x[0], roots) )
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account = self.accounts.get(account_id)
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if not account: continue
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addr = account.get_address(*sequence)
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txin['address'] = addr
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pk = self.get_private_key(addr, password)
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for sec in pk:
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pubkey = public_key_from_private_key(sec)
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keypairs[pubkey] = sec
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redeem_script = txin.get("redeemScript")
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print_error( "p2sh:", "yes" if redeem_script else "no")
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if redeem_script:
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|
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'))
|
|
txin['address'] = addr
|
|
|
|
# add private keys that are in the wallet
|
|
pk = self.get_private_key(addr, password)
|
|
for sec in pk:
|
|
pubkey = public_key_from_private_key(sec)
|
|
keypairs[pubkey] = sec
|
|
if not redeem_script:
|
|
txin['redeemPubkey'] = pubkey
|
|
|
|
print txin
|
|
|
|
tx.sign( keypairs )
|
|
|
|
def sign_message(self, address, message, password):
|
|
sec = self.get_private_key(address, password)
|
|
key = regenerate_key(sec)
|
|
compressed = is_compressed(sec)
|
|
return key.sign_message(message, compressed, address)
|
|
|
|
def verify_message(self, address, signature, message):
|
|
try:
|
|
EC_KEY.verify_message(address, signature, message)
|
|
return True
|
|
except BaseException as e:
|
|
print_error("Verification error: {0}".format(e))
|
|
return False
|
|
|
|
|
|
def change_gap_limit(self, value):
|
|
if value >= self.gap_limit:
|
|
self.gap_limit = value
|
|
self.config.set_key('gap_limit', self.gap_limit, True)
|
|
self.interface.poke('synchronizer')
|
|
return True
|
|
|
|
elif value >= self.min_acceptable_gap():
|
|
for key, account in self.accounts.items():
|
|
addresses = account[0]
|
|
k = self.num_unused_trailing_addresses(addresses)
|
|
n = len(addresses) - k + value
|
|
addresses = addresses[0:n]
|
|
self.accounts[key][0] = addresses
|
|
|
|
self.gap_limit = value
|
|
self.config.set_key('gap_limit', self.gap_limit, True)
|
|
self.save_accounts()
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def num_unused_trailing_addresses(self, addresses):
|
|
k = 0
|
|
for a in addresses[::-1]:
|
|
if self.history.get(a):break
|
|
k = k + 1
|
|
return k
|
|
|
|
def min_acceptable_gap(self):
|
|
# fixme: this assumes wallet is synchronized
|
|
n = 0
|
|
nmax = 0
|
|
|
|
for account in self.accounts.values():
|
|
addresses = account.get_addresses(0)
|
|
k = self.num_unused_trailing_addresses(addresses)
|
|
for a in addresses[0:-k]:
|
|
if self.history.get(a):
|
|
n = 0
|
|
else:
|
|
n += 1
|
|
if n > nmax: nmax = n
|
|
return nmax + 1
|
|
|
|
|
|
def address_is_old(self, address):
|
|
age = -1
|
|
h = self.history.get(address, [])
|
|
if h == ['*']:
|
|
return True
|
|
for tx_hash, tx_height in h:
|
|
if tx_height == 0:
|
|
tx_age = 0
|
|
else:
|
|
tx_age = self.verifier.height - tx_height + 1
|
|
if tx_age > age:
|
|
age = tx_age
|
|
return age > 2
|
|
|
|
|
|
def synchronize_sequence(self, account, for_change):
|
|
limit = self.gap_limit_for_change if for_change else self.gap_limit
|
|
new_addresses = []
|
|
while True:
|
|
addresses = account.get_addresses(for_change)
|
|
if len(addresses) < limit:
|
|
address = account.create_new_address(for_change)
|
|
self.history[address] = []
|
|
new_addresses.append( address )
|
|
continue
|
|
|
|
if map( lambda a: self.address_is_old(a), addresses[-limit:] ) == limit*[False]:
|
|
break
|
|
else:
|
|
address = account.create_new_address(for_change)
|
|
self.history[address] = []
|
|
new_addresses.append( address )
|
|
|
|
return new_addresses
|
|
|
|
|
|
def synchronize_account(self, account):
|
|
new = []
|
|
new += self.synchronize_sequence(account, 0)
|
|
new += self.synchronize_sequence(account, 1)
|
|
return new
|
|
|
|
def synchronize(self):
|
|
new = []
|
|
for account in self.accounts.values():
|
|
new += self.synchronize_account(account)
|
|
if new:
|
|
self.save_accounts()
|
|
self.config.set_key('addr_history', self.history, True)
|
|
return new
|
|
|
|
|
|
def is_found(self):
|
|
return self.history.values() != [[]] * len(self.history)
|
|
|
|
|
|
def add_contact(self, address, label=None):
|
|
self.addressbook.append(address)
|
|
self.config.set_key('contacts', self.addressbook, True)
|
|
if label:
|
|
self.labels[address] = label
|
|
self.config.set_key('labels', self.labels, True)
|
|
|
|
def delete_contact(self, addr):
|
|
if addr in self.addressbook:
|
|
self.addressbook.remove(addr)
|
|
self.config.set_key('addressbook', self.addressbook, True)
|
|
|
|
|
|
def fill_addressbook(self):
|
|
for tx_hash, tx in self.transactions.items():
|
|
is_relevant, is_send, _, _ = self.get_tx_value(tx)
|
|
if is_send:
|
|
for addr, v in tx.outputs:
|
|
if not self.is_mine(addr) and addr not in self.addressbook:
|
|
self.addressbook.append(addr)
|
|
# redo labels
|
|
# self.update_tx_labels()
|
|
|
|
def get_num_tx(self, address):
|
|
n = 0
|
|
for tx in self.transactions.values():
|
|
if address in map(lambda x:x[0], tx.outputs): n += 1
|
|
return n
|
|
|
|
|
|
def get_address_flags(self, addr):
|
|
flags = "C" if self.is_change(addr) else "I" if addr in self.imported_keys.keys() else "-"
|
|
flags += "F" if addr in self.frozen_addresses else "P" if addr in self.prioritized_addresses else "-"
|
|
return flags
|
|
|
|
|
|
def get_tx_value(self, tx, account=None):
|
|
domain = self.get_account_addresses(account)
|
|
return tx.get_value(domain, self.prevout_values)
|
|
|
|
|
|
def update_tx_outputs(self, tx_hash):
|
|
tx = self.transactions.get(tx_hash)
|
|
|
|
for i, (addr, value) in enumerate(tx.outputs):
|
|
key = tx_hash+ ':%d'%i
|
|
self.prevout_values[key] = value
|
|
|
|
for item in tx.inputs:
|
|
if self.is_mine(item.get('address')):
|
|
key = item['prevout_hash'] + ':%d'%item['prevout_n']
|
|
self.spent_outputs.append(key)
|
|
|
|
|
|
def get_addr_balance(self, address):
|
|
assert self.is_mine(address)
|
|
h = self.history.get(address,[])
|
|
if h == ['*']: return 0,0
|
|
c = u = 0
|
|
received_coins = [] # list of coins received at address
|
|
|
|
for tx_hash, tx_height in h:
|
|
tx = self.transactions.get(tx_hash)
|
|
if not tx: continue
|
|
|
|
for i, (addr, value) in enumerate(tx.outputs):
|
|
if addr == address:
|
|
key = tx_hash + ':%d'%i
|
|
received_coins.append(key)
|
|
|
|
for tx_hash, tx_height in h:
|
|
tx = self.transactions.get(tx_hash)
|
|
if not tx: continue
|
|
v = 0
|
|
|
|
for item in tx.inputs:
|
|
addr = item.get('address')
|
|
if addr == address:
|
|
key = item['prevout_hash'] + ':%d'%item['prevout_n']
|
|
value = self.prevout_values.get( key )
|
|
if key in received_coins:
|
|
v -= value
|
|
|
|
for i, (addr, value) in enumerate(tx.outputs):
|
|
key = tx_hash + ':%d'%i
|
|
if addr == address:
|
|
v += value
|
|
|
|
if tx_height:
|
|
c += v
|
|
else:
|
|
u += v
|
|
return c, u
|
|
|
|
|
|
def get_accounts(self):
|
|
accounts = {}
|
|
for k, account in self.accounts.items():
|
|
accounts[k] = self.labels.get(k, 'unnamed')
|
|
if self.imported_keys:
|
|
accounts[-1] = 'Imported keys'
|
|
return accounts
|
|
|
|
def get_account_addresses(self, a, include_change=True):
|
|
if a is None:
|
|
o = self.addresses(True)
|
|
elif a == -1:
|
|
o = self.imported_keys.keys()
|
|
else:
|
|
ac = self.accounts[a]
|
|
o = ac.get_addresses(0)
|
|
if include_change: o += ac.get_addresses(1)
|
|
return o
|
|
|
|
def get_imported_balance(self):
|
|
cc = uu = 0
|
|
for addr in self.imported_keys.keys():
|
|
c, u = self.get_addr_balance(addr)
|
|
cc += c
|
|
uu += u
|
|
return cc, uu
|
|
|
|
def get_account_balance(self, account):
|
|
if account is None:
|
|
return self.get_balance()
|
|
elif account == -1:
|
|
return self.get_imported_balance()
|
|
|
|
conf = unconf = 0
|
|
for addr in self.get_account_addresses(account):
|
|
c, u = self.get_addr_balance(addr)
|
|
conf += c
|
|
unconf += u
|
|
return conf, unconf
|
|
|
|
def get_frozen_balance(self):
|
|
conf = unconf = 0
|
|
for addr in self.frozen_addresses:
|
|
c, u = self.get_addr_balance(addr)
|
|
conf += c
|
|
unconf += u
|
|
return conf, unconf
|
|
|
|
|
|
def get_balance(self):
|
|
cc = uu = 0
|
|
for a in self.accounts.keys():
|
|
c, u = self.get_account_balance(a)
|
|
cc += c
|
|
uu += u
|
|
c, u = self.get_imported_balance()
|
|
cc += c
|
|
uu += u
|
|
return cc, uu
|
|
|
|
|
|
def get_unspent_coins(self, domain=None):
|
|
coins = []
|
|
if domain is None: domain = self.addresses(True)
|
|
for addr in domain:
|
|
h = self.history.get(addr, [])
|
|
if h == ['*']: continue
|
|
for tx_hash, tx_height in h:
|
|
tx = self.transactions.get(tx_hash)
|
|
if tx is None: raise BaseException("Wallet not synchronized")
|
|
for output in tx.d.get('outputs'):
|
|
if output.get('address') != addr: continue
|
|
key = tx_hash + ":%d" % output.get('index')
|
|
if key in self.spent_outputs: continue
|
|
output['tx_hash'] = tx_hash
|
|
coins.append(output)
|
|
return coins
|
|
|
|
|
|
|
|
def choose_tx_inputs( self, amount, fixed_fee, account = None ):
|
|
""" todo: minimize tx size """
|
|
total = 0
|
|
fee = self.fee if fixed_fee is None else fixed_fee
|
|
domain = self.get_account_addresses(account)
|
|
coins = []
|
|
prioritized_coins = []
|
|
for i in self.frozen_addresses:
|
|
if i in domain: domain.remove(i)
|
|
|
|
for i in self.prioritized_addresses:
|
|
if i in domain: domain.remove(i)
|
|
|
|
coins = self.get_unspent_coins(domain)
|
|
prioritized_coins = self.get_unspent_coins(self.prioritized_addresses)
|
|
|
|
inputs = []
|
|
coins = prioritized_coins + coins
|
|
|
|
for item in coins:
|
|
addr = item.get('address')
|
|
v = item.get('value')
|
|
total += v
|
|
inputs.append( item )
|
|
fee = self.estimated_fee(inputs) if fixed_fee is None else fixed_fee
|
|
if total >= amount + fee: break
|
|
else:
|
|
inputs = []
|
|
|
|
return inputs, total, fee
|
|
|
|
|
|
def estimated_fee(self, inputs):
|
|
estimated_size = len(inputs) * 180 + 80 # this assumes non-compressed keys
|
|
fee = self.fee * int(round(estimated_size/1024.))
|
|
if fee == 0: fee = self.fee
|
|
return fee
|
|
|
|
|
|
def add_tx_change( self, inputs, outputs, amount, fee, total, change_addr=None, account=0 ):
|
|
"add change to a transaction"
|
|
change_amount = total - ( amount + fee )
|
|
if change_amount != 0:
|
|
if not change_addr:
|
|
if account is None:
|
|
# send change to one of the accounts involved in the tx
|
|
address = inputs[0].get('address')
|
|
account, _ = self.get_address_index(address)
|
|
|
|
if not self.use_change or account == -1:
|
|
change_addr = inputs[-1]['address']
|
|
else:
|
|
change_addr = self.accounts[account].get_addresses(1)[-self.gap_limit_for_change]
|
|
|
|
# Insert the change output at a random position in the outputs
|
|
posn = random.randint(0, len(outputs))
|
|
outputs[posn:posn] = [( change_addr, change_amount)]
|
|
return outputs
|
|
|
|
|
|
def get_history(self, address):
|
|
with self.lock:
|
|
return self.history.get(address)
|
|
|
|
|
|
def get_status(self, h):
|
|
if not h: return None
|
|
if h == ['*']: return '*'
|
|
status = ''
|
|
for tx_hash, height in h:
|
|
status += tx_hash + ':%d:' % height
|
|
return hashlib.sha256( status ).digest().encode('hex')
|
|
|
|
|
|
def receive_tx_callback(self, tx_hash, tx, tx_height):
|
|
if not self.check_new_tx(tx_hash, tx):
|
|
# may happen due to pruning
|
|
print_error("received transaction that is no longer referenced in history", tx_hash)
|
|
return
|
|
|
|
with self.transaction_lock:
|
|
self.transactions[tx_hash] = 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)
|
|
self.update_tx_outputs(tx_hash)
|
|
|
|
|
|
def save_transactions(self):
|
|
tx = {}
|
|
for k,v in self.transactions.items():
|
|
tx[k] = str(v)
|
|
self.config.set_key('transactions', tx, True)
|
|
|
|
def receive_history_callback(self, addr, hist):
|
|
|
|
if not self.check_new_history(addr, hist):
|
|
raise BaseException("error: received history for %s is not consistent with known transactions"%addr)
|
|
|
|
with self.lock:
|
|
self.history[addr] = hist
|
|
self.config.set_key('addr_history', self.history, True)
|
|
|
|
if hist != ['*']:
|
|
for tx_hash, tx_height in hist:
|
|
if tx_height>0:
|
|
# add it in case it was previously unconfirmed
|
|
if self.verifier: self.verifier.add(tx_hash, tx_height)
|
|
|
|
|
|
def get_tx_history(self, account=None):
|
|
with self.transaction_lock:
|
|
history = self.transactions.items()
|
|
history.sort(key = lambda x: self.verifier.get_txpos(x[0]))
|
|
result = []
|
|
|
|
balance = 0
|
|
for tx_hash, tx in history:
|
|
is_relevant, is_mine, v, fee = self.get_tx_value(tx, account)
|
|
if v is not None: balance += v
|
|
|
|
c, u = self.get_account_balance(account)
|
|
|
|
if balance != c+u:
|
|
result.append( ('', 1000, 0, c+u-balance, None, c+u-balance, None ) )
|
|
|
|
balance = c + u - balance
|
|
for tx_hash, tx in history:
|
|
is_relevant, is_mine, value, fee = self.get_tx_value(tx, account)
|
|
if not is_relevant:
|
|
continue
|
|
if value is not None:
|
|
balance += value
|
|
|
|
conf, timestamp = self.verifier.get_confirmations(tx_hash) if self.verifier else (None, None)
|
|
result.append( (tx_hash, conf, is_mine, value, fee, balance, timestamp) )
|
|
|
|
return result
|
|
|
|
|
|
def get_label(self, tx_hash):
|
|
label = self.labels.get(tx_hash)
|
|
is_default = (label == '') or (label is None)
|
|
if is_default: label = self.get_default_label(tx_hash)
|
|
return label, is_default
|
|
|
|
|
|
def get_default_label(self, tx_hash):
|
|
tx = self.transactions.get(tx_hash)
|
|
default_label = ''
|
|
if tx:
|
|
is_relevant, is_mine, _, _ = self.get_tx_value(tx)
|
|
if is_mine:
|
|
for o in tx.outputs:
|
|
o_addr, _ = o
|
|
if not self.is_mine(o_addr):
|
|
try:
|
|
default_label = self.labels[o_addr]
|
|
except KeyError:
|
|
default_label = o_addr
|
|
break
|
|
else:
|
|
default_label = '(internal)'
|
|
else:
|
|
for o in tx.outputs:
|
|
o_addr, _ = o
|
|
if self.is_mine(o_addr) and not self.is_change(o_addr):
|
|
break
|
|
else:
|
|
for o in tx.outputs:
|
|
o_addr, _ = o
|
|
if self.is_mine(o_addr):
|
|
break
|
|
else:
|
|
o_addr = None
|
|
|
|
if o_addr:
|
|
dest_label = self.labels.get(o_addr)
|
|
try:
|
|
default_label = self.labels[o_addr]
|
|
except KeyError:
|
|
default_label = o_addr
|
|
|
|
return default_label
|
|
|
|
|
|
def mktx(self, outputs, password, fee=None, change_addr=None, account=None ):
|
|
|
|
for address, x in outputs:
|
|
assert is_valid(address)
|
|
|
|
amount = sum( map(lambda x:x[1], outputs) )
|
|
|
|
inputs, total, fee = self.choose_tx_inputs( amount, fee, account )
|
|
if not inputs:
|
|
raise ValueError("Not enough funds")
|
|
|
|
outputs = self.add_tx_change(inputs, outputs, amount, fee, total, change_addr, account)
|
|
tx = Transaction.from_io(inputs, outputs)
|
|
|
|
keypairs = {}
|
|
for i, txin in enumerate(tx.inputs):
|
|
address = txin['address']
|
|
|
|
account, sequence = self.get_address_index(address)
|
|
txin['KeyID'] = self.get_keyID(account, sequence)
|
|
|
|
redeemScript = self.accounts[account].redeem_script(sequence)
|
|
if redeemScript:
|
|
txin['redeemScript'] = redeemScript
|
|
assert address == self.accounts[account].get_address(*sequence)
|
|
else:
|
|
txin['redeemPubkey'] = self.accounts[account].get_pubkey(*sequence)
|
|
|
|
private_keys = self.get_private_key(address, password)
|
|
|
|
for sec in private_keys:
|
|
pubkey = public_key_from_private_key(sec)
|
|
keypairs[ pubkey ] = sec
|
|
|
|
tx.sign(keypairs)
|
|
|
|
for address, x in outputs:
|
|
if address not in self.addressbook and not self.is_mine(address):
|
|
self.addressbook.append(address)
|
|
|
|
return tx
|
|
|
|
|
|
|
|
def sendtx(self, tx):
|
|
# synchronous
|
|
h = self.send_tx(tx)
|
|
self.tx_event.wait()
|
|
return self.receive_tx(h)
|
|
|
|
def send_tx(self, tx):
|
|
# asynchronous
|
|
self.tx_event.clear()
|
|
self.interface.send([('blockchain.transaction.broadcast', [str(tx)])], 'synchronizer')
|
|
return tx.hash()
|
|
|
|
def receive_tx(self,tx_hash):
|
|
out = self.tx_result
|
|
if out != tx_hash:
|
|
return False, "error: " + out
|
|
return True, out
|
|
|
|
|
|
|
|
def update_password(self, seed, old_password, new_password):
|
|
if new_password == '': new_password = None
|
|
# this will throw an exception if unicode cannot be converted
|
|
self.seed = pw_encode( seed, new_password)
|
|
self.config.set_key('seed', self.seed, True)
|
|
self.use_encryption = (new_password != None)
|
|
self.config.set_key('use_encryption', self.use_encryption,True)
|
|
for k in self.imported_keys.keys():
|
|
a = self.imported_keys[k]
|
|
b = pw_decode(a, old_password)
|
|
c = pw_encode(b, new_password)
|
|
self.imported_keys[k] = c
|
|
self.config.set_key('imported_keys', self.imported_keys, True)
|
|
|
|
for k, v in self.master_private_keys.items():
|
|
b = pw_decode(v, old_password)
|
|
c = pw_encode(b, new_password)
|
|
self.master_private_keys[k] = c
|
|
self.config.set_key('master_private_keys', self.master_private_keys, True)
|
|
|
|
|
|
def freeze(self,addr):
|
|
if self.is_mine(addr) and addr not in self.frozen_addresses:
|
|
self.unprioritize(addr)
|
|
self.frozen_addresses.append(addr)
|
|
self.config.set_key('frozen_addresses', self.frozen_addresses, True)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def unfreeze(self,addr):
|
|
if self.is_mine(addr) and addr in self.frozen_addresses:
|
|
self.frozen_addresses.remove(addr)
|
|
self.config.set_key('frozen_addresses', self.frozen_addresses, True)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def prioritize(self,addr):
|
|
if self.is_mine(addr) and addr not in self.prioritized_addresses:
|
|
self.unfreeze(addr)
|
|
self.prioritized_addresses.append(addr)
|
|
self.config.set_key('prioritized_addresses', self.prioritized_addresses, True)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def unprioritize(self,addr):
|
|
if self.is_mine(addr) and addr in self.prioritized_addresses:
|
|
self.prioritized_addresses.remove(addr)
|
|
self.config.set_key('prioritized_addresses', self.prioritized_addresses, True)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def set_fee(self, fee):
|
|
if self.fee != fee:
|
|
self.fee = fee
|
|
self.config.set_key('fee_per_kb', self.fee, True)
|
|
|
|
|
|
def save(self):
|
|
print_error("Warning: wallet.save() is deprecated")
|
|
tx = {}
|
|
for k,v in self.transactions.items():
|
|
tx[k] = str(v)
|
|
|
|
s = {
|
|
'use_change': self.use_change,
|
|
'fee_per_kb': self.fee,
|
|
'addr_history': self.history,
|
|
'labels': self.labels,
|
|
'contacts': self.addressbook,
|
|
'num_zeros': self.num_zeros,
|
|
'frozen_addresses': self.frozen_addresses,
|
|
'prioritized_addresses': self.prioritized_addresses,
|
|
'gap_limit': self.gap_limit,
|
|
'transactions': tx,
|
|
}
|
|
for k, v in s.items():
|
|
self.config.set_key(k,v)
|
|
self.config.save()
|
|
|
|
def set_verifier(self, verifier):
|
|
self.verifier = verifier
|
|
|
|
# review transactions that are in the history
|
|
for addr, hist in self.history.items():
|
|
if hist == ['*']: continue
|
|
for tx_hash, tx_height in hist:
|
|
if tx_height>0:
|
|
# add it in case it was previously unconfirmed
|
|
self.verifier.add(tx_hash, tx_height)
|
|
|
|
|
|
# if we are on a pruning server, remove unverified transactions
|
|
vr = self.verifier.transactions.keys() + self.verifier.verified_tx.keys()
|
|
for tx_hash in self.transactions.keys():
|
|
if tx_hash not in vr:
|
|
self.transactions.pop(tx_hash)
|
|
|
|
|
|
|
|
def check_new_history(self, addr, hist):
|
|
|
|
# check that all tx in hist are relevant
|
|
if hist != ['*']:
|
|
for tx_hash, height in hist:
|
|
tx = self.transactions.get(tx_hash)
|
|
if not tx: continue
|
|
if not tx.has_address(addr):
|
|
return False
|
|
|
|
# check that we are not "orphaning" a transaction
|
|
old_hist = self.history.get(addr,[])
|
|
if old_hist == ['*']: return True
|
|
|
|
for tx_hash, height in old_hist:
|
|
if tx_hash in map(lambda x:x[0], hist): continue
|
|
found = False
|
|
for _addr, _hist in self.history.items():
|
|
if _addr == addr: continue
|
|
if _hist == ['*']: continue
|
|
_tx_hist = map(lambda x:x[0], _hist)
|
|
if tx_hash in _tx_hist:
|
|
found = True
|
|
break
|
|
|
|
if not found:
|
|
tx = self.transactions.get(tx_hash)
|
|
# tx might not be there
|
|
if not tx: continue
|
|
|
|
# already verified?
|
|
if self.verifier.get_height(tx_hash):
|
|
continue
|
|
# unconfirmed tx
|
|
print_error("new history is orphaning transaction:", tx_hash)
|
|
# check that all outputs are not mine, request histories
|
|
ext_requests = []
|
|
for _addr, _v in tx.outputs:
|
|
# assert not self.is_mine(_addr)
|
|
ext_requests.append( ('blockchain.address.get_history', [_addr]) )
|
|
|
|
ext_h = self.interface.synchronous_get(ext_requests)
|
|
print_error("sync:", ext_requests, ext_h)
|
|
height = None
|
|
for h in ext_h:
|
|
if h == ['*']: continue
|
|
for item in h:
|
|
if item.get('tx_hash') == tx_hash:
|
|
height = item.get('height')
|
|
if height:
|
|
print_error("found height for", tx_hash, height)
|
|
self.verifier.add(tx_hash, height)
|
|
else:
|
|
print_error("removing orphaned tx from history", tx_hash)
|
|
self.transactions.pop(tx_hash)
|
|
|
|
return True
|
|
|
|
|
|
|
|
def check_new_tx(self, tx_hash, tx):
|
|
# 1 check that tx is referenced in addr_history.
|
|
addresses = []
|
|
for addr, hist in self.history.items():
|
|
if hist == ['*']:continue
|
|
for txh, height in hist:
|
|
if txh == tx_hash:
|
|
addresses.append(addr)
|
|
|
|
if not addresses:
|
|
return False
|
|
|
|
# 2 check that referencing addresses are in the tx
|
|
for addr in addresses:
|
|
if not tx.has_address(addr):
|
|
return False
|
|
|
|
return True
|
|
|
|
|
|
|
|
|
|
class WalletSynchronizer(threading.Thread):
|
|
|
|
|
|
def __init__(self, wallet, config):
|
|
threading.Thread.__init__(self)
|
|
self.daemon = True
|
|
self.wallet = wallet
|
|
wallet.synchronizer = self
|
|
self.interface = self.wallet.interface
|
|
self.interface.register_channel('synchronizer')
|
|
self.wallet.interface.register_callback('connected', lambda: self.wallet.set_up_to_date(False))
|
|
self.was_updated = True
|
|
self.running = False
|
|
self.lock = threading.Lock()
|
|
|
|
def stop(self):
|
|
with self.lock: self.running = False
|
|
self.interface.poke('synchronizer')
|
|
|
|
def is_running(self):
|
|
with self.lock: return self.running
|
|
|
|
|
|
def subscribe_to_addresses(self, addresses):
|
|
messages = []
|
|
for addr in addresses:
|
|
messages.append(('blockchain.address.subscribe', [addr]))
|
|
self.interface.send( messages, 'synchronizer')
|
|
|
|
|
|
def run(self):
|
|
with self.lock: self.running = True
|
|
|
|
requested_tx = []
|
|
missing_tx = []
|
|
requested_histories = {}
|
|
|
|
# request any missing transactions
|
|
for history in self.wallet.history.values():
|
|
if history == ['*']: continue
|
|
for tx_hash, tx_height in history:
|
|
if self.wallet.transactions.get(tx_hash) is None and (tx_hash, tx_height) not in missing_tx:
|
|
missing_tx.append( (tx_hash, tx_height) )
|
|
print_error("missing tx", missing_tx)
|
|
|
|
# wait until we are connected, in case the user is not connected
|
|
while not self.interface.is_connected:
|
|
time.sleep(1)
|
|
|
|
# subscriptions
|
|
self.subscribe_to_addresses(self.wallet.addresses(True))
|
|
|
|
while self.is_running():
|
|
# 1. create new addresses
|
|
new_addresses = self.wallet.synchronize()
|
|
|
|
# request missing addresses
|
|
if new_addresses:
|
|
self.subscribe_to_addresses(new_addresses)
|
|
|
|
# request missing transactions
|
|
for tx_hash, tx_height in missing_tx:
|
|
if (tx_hash, tx_height) not in requested_tx:
|
|
self.interface.send([ ('blockchain.transaction.get',[tx_hash, tx_height]) ], 'synchronizer')
|
|
requested_tx.append( (tx_hash, tx_height) )
|
|
missing_tx = []
|
|
|
|
# detect if situation has changed
|
|
if not self.interface.is_up_to_date('synchronizer'):
|
|
if self.wallet.is_up_to_date():
|
|
self.wallet.set_up_to_date(False)
|
|
self.was_updated = True
|
|
else:
|
|
if not self.wallet.is_up_to_date():
|
|
self.wallet.set_up_to_date(True)
|
|
self.was_updated = True
|
|
|
|
if self.was_updated:
|
|
self.interface.trigger_callback('updated')
|
|
self.was_updated = False
|
|
|
|
# 2. get a response
|
|
r = self.interface.get_response('synchronizer')
|
|
|
|
# poke sends None. (needed during stop)
|
|
if not r: continue
|
|
|
|
# 3. handle response
|
|
method = r['method']
|
|
params = r['params']
|
|
result = r.get('result')
|
|
error = r.get('error')
|
|
if error:
|
|
print "error", r
|
|
continue
|
|
|
|
if method == 'blockchain.address.subscribe':
|
|
addr = params[0]
|
|
if self.wallet.get_status(self.wallet.get_history(addr)) != result:
|
|
if requested_histories.get(addr) is None:
|
|
self.interface.send([('blockchain.address.get_history', [addr])], 'synchronizer')
|
|
requested_histories[addr] = result
|
|
|
|
elif method == 'blockchain.address.get_history':
|
|
addr = params[0]
|
|
print_error("receiving history", addr, result)
|
|
if result == ['*']:
|
|
assert requested_histories.pop(addr) == '*'
|
|
self.wallet.receive_history_callback(addr, result)
|
|
else:
|
|
hist = []
|
|
# check that txids are unique
|
|
txids = []
|
|
for item in result:
|
|
tx_hash = item['tx_hash']
|
|
if tx_hash not in txids:
|
|
txids.append(tx_hash)
|
|
hist.append( (tx_hash, item['height']) )
|
|
|
|
if len(hist) != len(result):
|
|
raise BaseException("error: server sent history with non-unique txid", result)
|
|
|
|
# check that the status corresponds to what was announced
|
|
rs = requested_histories.pop(addr)
|
|
if self.wallet.get_status(hist) != rs:
|
|
raise BaseException("error: status mismatch: %s"%addr)
|
|
|
|
# store received history
|
|
self.wallet.receive_history_callback(addr, hist)
|
|
|
|
# request transactions that we don't have
|
|
for tx_hash, tx_height in hist:
|
|
if self.wallet.transactions.get(tx_hash) is None:
|
|
if (tx_hash, tx_height) not in requested_tx and (tx_hash, tx_height) not in missing_tx:
|
|
missing_tx.append( (tx_hash, tx_height) )
|
|
|
|
elif method == 'blockchain.transaction.get':
|
|
tx_hash = params[0]
|
|
tx_height = params[1]
|
|
assert tx_hash == hash_encode(Hash(result.decode('hex')))
|
|
tx = Transaction(result)
|
|
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
|
|
self.was_updated = True
|
|
requested_tx.remove( (tx_hash, tx_height) )
|
|
print_error("received tx:", tx_hash, len(tx.raw))
|
|
|
|
elif method == 'blockchain.transaction.broadcast':
|
|
self.wallet.tx_result = result
|
|
self.wallet.tx_event.set()
|
|
|
|
else:
|
|
print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result) )
|
|
|
|
if self.was_updated and not requested_tx:
|
|
self.interface.trigger_callback('updated')
|
|
self.interface.trigger_callback("new_transaction") # Updated gets called too many times from other places as well; if we use that signal we get the notification three times
|
|
|
|
|
|
self.was_updated = False
|
|
|