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1869 lines
67 KiB
1869 lines
67 KiB
# Electrum - lightweight Bitcoin client
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# Copyright (C) 2015 Thomas Voegtlin
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# Wallet classes:
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# - Imported_Wallet: imported address, no keystore
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# - Standard_Wallet: one keystore, P2PKH
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# - Multisig_Wallet: several keystores, P2SH
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import os
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import threading
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import random
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import time
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import json
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import copy
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import errno
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from functools import partial
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from collections import defaultdict
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from .i18n import _
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from .util import NotEnoughFunds, PrintError, UserCancelled, profiler, format_satoshis
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from .bitcoin import *
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from .version import *
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from .keystore import load_keystore, Hardware_KeyStore
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from .storage import multisig_type
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from . import transaction
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from .transaction import Transaction
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from .plugins import run_hook
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from . import bitcoin
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from . import coinchooser
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from .synchronizer import Synchronizer
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from .verifier import SPV
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from . import paymentrequest
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from .paymentrequest import PR_PAID, PR_UNPAID, PR_UNKNOWN, PR_EXPIRED
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from .paymentrequest import InvoiceStore
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from .contacts import Contacts
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TX_STATUS = [
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_('Replaceable'),
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_('Unconfirmed parent'),
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_('Low fee'),
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_('Unconfirmed'),
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_('Not Verified'),
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]
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class Abstract_Wallet(PrintError):
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"""
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Wallet classes are created to handle various address generation methods.
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Completion states (watching-only, single account, no seed, etc) are handled inside classes.
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"""
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max_change_outputs = 3
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def __init__(self, storage):
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self.electrum_version = ELECTRUM_VERSION
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self.storage = storage
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self.network = None
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# verifier (SPV) and synchronizer are started in start_threads
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self.synchronizer = None
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self.verifier = None
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self.gap_limit_for_change = 6 # constant
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# saved fields
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self.use_change = storage.get('use_change', True)
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self.multiple_change = storage.get('multiple_change', False)
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self.labels = storage.get('labels', {})
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self.frozen_addresses = set(storage.get('frozen_addresses',[]))
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self.stored_height = storage.get('stored_height', 0) # last known height (for offline mode)
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self.history = storage.get('addr_history',{}) # address -> list(txid, height)
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self.load_keystore()
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self.load_addresses()
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self.load_transactions()
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self.build_reverse_history()
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# load requests
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self.receive_requests = self.storage.get('payment_requests', {})
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# Transactions pending verification. A map from tx hash to transaction
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# height. Access is not contended so no lock is needed.
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self.unverified_tx = defaultdict(int)
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# Verified transactions. Each value is a (height, timestamp, block_pos) tuple. Access with self.lock.
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self.verified_tx = storage.get('verified_tx3', {})
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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.check_history()
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# save wallet type the first time
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if self.storage.get('wallet_type') is None:
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self.storage.put('wallet_type', self.wallet_type)
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# invoices and contacts
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self.invoices = InvoiceStore(self.storage)
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self.contacts = Contacts(self.storage)
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def diagnostic_name(self):
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return self.basename()
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def __str__(self):
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return self.basename()
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def get_master_public_key(self):
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return None
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@profiler
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def load_transactions(self):
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self.txi = self.storage.get('txi', {})
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self.txo = self.storage.get('txo', {})
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self.tx_fees = self.storage.get('tx_fees', {})
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self.pruned_txo = self.storage.get('pruned_txo', {})
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tx_list = self.storage.get('transactions', {})
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self.transactions = {}
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for tx_hash, raw in tx_list.items():
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tx = Transaction(raw)
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self.transactions[tx_hash] = tx
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if self.txi.get(tx_hash) is None and self.txo.get(tx_hash) is None and (tx_hash not in self.pruned_txo.values()):
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self.print_error("removing unreferenced tx", tx_hash)
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self.transactions.pop(tx_hash)
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@profiler
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def save_transactions(self, write=False):
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with self.transaction_lock:
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tx = {}
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for k,v in self.transactions.items():
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tx[k] = str(v)
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self.storage.put('transactions', tx)
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self.storage.put('txi', self.txi)
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self.storage.put('txo', self.txo)
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self.storage.put('tx_fees', self.tx_fees)
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self.storage.put('pruned_txo', self.pruned_txo)
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self.storage.put('addr_history', self.history)
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if write:
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self.storage.write()
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def clear_history(self):
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with self.transaction_lock:
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self.txi = {}
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self.txo = {}
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self.tx_fees = {}
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self.pruned_txo = {}
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self.save_transactions()
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with self.lock:
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self.history = {}
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self.tx_addr_hist = {}
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@profiler
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def build_reverse_history(self):
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self.tx_addr_hist = {}
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for addr, hist in self.history.items():
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for tx_hash, h in hist:
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s = self.tx_addr_hist.get(tx_hash, set())
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s.add(addr)
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self.tx_addr_hist[tx_hash] = s
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@profiler
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def check_history(self):
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save = False
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mine_addrs = list(filter(lambda k: self.is_mine(self.history[k]), self.history.keys()))
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if len(mine_addrs) != len(self.history.keys()):
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save = True
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for addr in mine_addrs:
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hist = self.history[addr]
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for tx_hash, tx_height in hist:
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if tx_hash in self.pruned_txo.values() or self.txi.get(tx_hash) or self.txo.get(tx_hash):
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continue
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tx = self.transactions.get(tx_hash)
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if tx is not None:
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self.add_transaction(tx_hash, tx)
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save = True
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if save:
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self.save_transactions()
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def basename(self):
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return os.path.basename(self.storage.path)
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def save_addresses(self):
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self.storage.put('addresses', {'receiving':self.receiving_addresses, 'change':self.change_addresses})
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def load_addresses(self):
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d = self.storage.get('addresses', {})
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if type(d) != dict: d={}
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self.receiving_addresses = d.get('receiving', [])
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self.change_addresses = d.get('change', [])
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def synchronize(self):
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pass
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def set_up_to_date(self, up_to_date):
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with self.lock:
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self.up_to_date = up_to_date
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if up_to_date:
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self.save_transactions(write=True)
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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 set_label(self, name, text = None):
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changed = False
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old_text = self.labels.get(name)
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if text:
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text = text.replace("\n", " ")
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if old_text != text:
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self.labels[name] = text
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changed = True
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else:
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if old_text:
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self.labels.pop(name)
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changed = True
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if changed:
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run_hook('set_label', self, name, text)
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self.storage.put('labels', self.labels)
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return changed
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def is_mine(self, address):
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return address in self.get_addresses()
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def is_change(self, address):
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if not self.is_mine(address):
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return False
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return address in self.change_addresses
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def get_address_index(self, address):
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if address in self.receiving_addresses:
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return False, self.receiving_addresses.index(address)
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if address in self.change_addresses:
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return True, self.change_addresses.index(address)
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raise Exception("Address not found", address)
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def export_private_key(self, address, password):
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""" extended WIF format """
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if self.is_watching_only():
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return []
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index = self.get_address_index(address)
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pk, compressed = self.keystore.get_private_key(index, password)
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if self.txin_type in ['p2sh', 'p2wsh', 'p2wsh-p2sh']:
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pubkeys = self.get_public_keys(address)
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redeem_script = self.pubkeys_to_redeem_script(pubkeys)
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else:
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redeem_script = None
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return bitcoin.serialize_privkey(pk, compressed, self.txin_type), redeem_script
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def get_public_keys(self, address):
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sequence = self.get_address_index(address)
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return self.get_pubkeys(*sequence)
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def add_unverified_tx(self, tx_hash, tx_height):
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if tx_height == 0 and tx_hash in self.verified_tx:
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self.verified_tx.pop(tx_hash)
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self.verifier.merkle_roots.pop(tx_hash, None)
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# tx will be verified only if height > 0
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if tx_hash not in self.verified_tx:
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self.unverified_tx[tx_hash] = tx_height
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def add_verified_tx(self, tx_hash, info):
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# Remove from the unverified map and add to the verified map and
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self.unverified_tx.pop(tx_hash, None)
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with self.lock:
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self.verified_tx[tx_hash] = info # (tx_height, timestamp, pos)
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height, conf, timestamp = self.get_tx_height(tx_hash)
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self.network.trigger_callback('verified', tx_hash, height, conf, timestamp)
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def get_unverified_txs(self):
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'''Returns a map from tx hash to transaction height'''
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return self.unverified_tx
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def undo_verifications(self, blockchain, height):
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'''Used by the verifier when a reorg has happened'''
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txs = set()
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with self.lock:
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for tx_hash, item in list(self.verified_tx.items()):
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tx_height, timestamp, pos = item
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if tx_height >= height:
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header = blockchain.read_header(tx_height)
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# fixme: use block hash, not timestamp
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if not header or header.get('timestamp') != timestamp:
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self.verified_tx.pop(tx_hash, None)
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txs.add(tx_hash)
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return txs
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def get_local_height(self):
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""" return last known height if we are offline """
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return self.network.get_local_height() if self.network else self.stored_height
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def get_tx_height(self, tx_hash):
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""" return the height and timestamp of a verified transaction. """
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with self.lock:
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if tx_hash in self.verified_tx:
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height, timestamp, pos = self.verified_tx[tx_hash]
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conf = max(self.get_local_height() - height + 1, 0)
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return height, conf, timestamp
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else:
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height = self.unverified_tx[tx_hash]
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return height, 0, False
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def get_txpos(self, tx_hash):
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"return position, even if the tx is unverified"
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with self.lock:
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x = self.verified_tx.get(tx_hash)
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y = self.unverified_tx.get(tx_hash)
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if x:
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height, timestamp, pos = x
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return height, pos
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elif y > 0:
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return y, 0
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else:
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return 1e12 - y, 0
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def is_found(self):
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return self.history.values() != [[]] * len(self.history)
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def get_num_tx(self, address):
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""" return number of transactions where address is involved """
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return len(self.history.get(address, []))
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def get_tx_delta(self, tx_hash, address):
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"effect of tx on address"
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# pruned
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if tx_hash in self.pruned_txo.values():
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return None
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delta = 0
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# substract the value of coins sent from address
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d = self.txi.get(tx_hash, {}).get(address, [])
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for n, v in d:
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delta -= v
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# add the value of the coins received at address
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d = self.txo.get(tx_hash, {}).get(address, [])
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for n, v, cb in d:
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delta += v
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return delta
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def get_wallet_delta(self, tx):
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""" effect of tx on wallet """
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addresses = self.get_addresses()
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is_relevant = False
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is_mine = False
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is_pruned = False
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is_partial = False
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v_in = v_out = v_out_mine = 0
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for item in tx.inputs():
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addr = item.get('address')
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if addr in addresses:
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is_mine = True
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is_relevant = True
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d = self.txo.get(item['prevout_hash'], {}).get(addr, [])
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for n, v, cb in d:
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if n == item['prevout_n']:
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value = v
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break
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else:
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value = None
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if value is None:
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is_pruned = True
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else:
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v_in += value
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else:
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is_partial = True
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if not is_mine:
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is_partial = False
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for addr, value in tx.get_outputs():
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v_out += value
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if addr in addresses:
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v_out_mine += value
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is_relevant = True
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if is_pruned:
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# some inputs are mine:
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fee = None
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if is_mine:
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v = v_out_mine - v_out
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else:
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# no input is mine
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v = v_out_mine
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else:
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v = v_out_mine - v_in
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if is_partial:
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# some inputs are mine, but not all
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fee = None
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else:
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# all inputs are mine
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fee = v_in - v_out
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if not is_mine:
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fee = None
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return is_relevant, is_mine, v, fee
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def get_tx_info(self, tx):
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is_relevant, is_mine, v, fee = self.get_wallet_delta(tx)
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exp_n = None
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can_broadcast = False
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can_bump = False
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label = ''
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height = conf = timestamp = None
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tx_hash = tx.txid()
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if tx.is_complete():
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if tx_hash in self.transactions.keys():
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label = self.get_label(tx_hash)
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height, conf, timestamp = self.get_tx_height(tx_hash)
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if height > 0:
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if conf:
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status = _("%d confirmations") % conf
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else:
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status = _('Not verified')
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else:
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status = _('Unconfirmed')
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if fee is None:
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fee = self.tx_fees.get(tx_hash)
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if fee and self.network.config.has_fee_estimates():
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size = tx.estimated_size()
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fee_per_kb = fee * 1000 / size
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exp_n = self.network.config.reverse_dynfee(fee_per_kb)
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can_bump = is_mine and not tx.is_final()
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else:
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status = _("Signed")
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can_broadcast = self.network is not None
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else:
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s, r = tx.signature_count()
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status = _("Unsigned") if s == 0 else _('Partially signed') + ' (%d/%d)'%(s,r)
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if is_relevant:
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if is_mine:
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if fee is not None:
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amount = v + fee
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else:
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amount = v
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else:
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amount = v
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else:
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amount = None
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return tx_hash, status, label, can_broadcast, can_bump, amount, fee, height, conf, timestamp, exp_n
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def get_addr_io(self, address):
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h = self.history.get(address, [])
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received = {}
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sent = {}
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for tx_hash, height in h:
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l = self.txo.get(tx_hash, {}).get(address, [])
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for n, v, is_cb in l:
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received[tx_hash + ':%d'%n] = (height, v, is_cb)
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for tx_hash, height in h:
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l = self.txi.get(tx_hash, {}).get(address, [])
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for txi, v in l:
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sent[txi] = height
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return received, sent
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def get_addr_utxo(self, address):
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coins, spent = self.get_addr_io(address)
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for txi in spent:
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coins.pop(txi)
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out = {}
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for txo, v in coins.items():
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tx_height, value, is_cb = v
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prevout_hash, prevout_n = txo.split(':')
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x = {
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'address':address,
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'value':value,
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'prevout_n':int(prevout_n),
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'prevout_hash':prevout_hash,
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'height':tx_height,
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'coinbase':is_cb
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}
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out[txo] = x
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return out
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# return the total amount ever received by an address
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def get_addr_received(self, address):
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received, sent = self.get_addr_io(address)
|
|
return sum([v for height, v, is_cb in received.values()])
|
|
|
|
# return the balance of a bitcoin address: confirmed and matured, unconfirmed, unmatured
|
|
def get_addr_balance(self, address):
|
|
received, sent = self.get_addr_io(address)
|
|
c = u = x = 0
|
|
for txo, (tx_height, v, is_cb) in received.items():
|
|
if is_cb and tx_height + COINBASE_MATURITY > self.get_local_height():
|
|
x += v
|
|
elif tx_height > 0:
|
|
c += v
|
|
else:
|
|
u += v
|
|
if txo in sent:
|
|
if sent[txo] > 0:
|
|
c -= v
|
|
else:
|
|
u -= v
|
|
return c, u, x
|
|
|
|
def get_spendable_coins(self, domain, config):
|
|
confirmed_only = config.get('confirmed_only', False)
|
|
return self.get_utxos(domain, exclude_frozen=True, mature=True, confirmed_only=confirmed_only)
|
|
|
|
def get_utxos(self, domain = None, exclude_frozen = False, mature = False, confirmed_only = False):
|
|
coins = []
|
|
if domain is None:
|
|
domain = self.get_addresses()
|
|
if exclude_frozen:
|
|
domain = set(domain) - self.frozen_addresses
|
|
for addr in domain:
|
|
utxos = self.get_addr_utxo(addr)
|
|
for x in utxos.values():
|
|
if confirmed_only and x['height'] <= 0:
|
|
continue
|
|
if mature and x['coinbase'] and x['height'] + COINBASE_MATURITY > self.get_local_height():
|
|
continue
|
|
coins.append(x)
|
|
continue
|
|
return coins
|
|
|
|
def dummy_address(self):
|
|
return self.get_receiving_addresses()[0]
|
|
|
|
def get_addresses(self):
|
|
out = []
|
|
out += self.get_receiving_addresses()
|
|
out += self.get_change_addresses()
|
|
return out
|
|
|
|
def get_frozen_balance(self):
|
|
return self.get_balance(self.frozen_addresses)
|
|
|
|
def get_balance(self, domain=None):
|
|
if domain is None:
|
|
domain = self.get_addresses()
|
|
cc = uu = xx = 0
|
|
for addr in domain:
|
|
c, u, x = self.get_addr_balance(addr)
|
|
cc += c
|
|
uu += u
|
|
xx += x
|
|
return cc, uu, xx
|
|
|
|
def get_address_history(self, address):
|
|
with self.lock:
|
|
return self.history.get(address, [])
|
|
|
|
def find_pay_to_pubkey_address(self, prevout_hash, prevout_n):
|
|
dd = self.txo.get(prevout_hash, {})
|
|
for addr, l in dd.items():
|
|
for n, v, is_cb in l:
|
|
if n == prevout_n:
|
|
self.print_error("found pay-to-pubkey address:", addr)
|
|
return addr
|
|
|
|
def add_transaction(self, tx_hash, tx):
|
|
is_coinbase = tx.inputs()[0]['type'] == 'coinbase'
|
|
with self.transaction_lock:
|
|
# add inputs
|
|
self.txi[tx_hash] = d = {}
|
|
for txi in tx.inputs():
|
|
addr = txi.get('address')
|
|
if txi['type'] != 'coinbase':
|
|
prevout_hash = txi['prevout_hash']
|
|
prevout_n = txi['prevout_n']
|
|
ser = prevout_hash + ':%d'%prevout_n
|
|
if addr == "(pubkey)":
|
|
addr = self.find_pay_to_pubkey_address(prevout_hash, prevout_n)
|
|
# find value from prev output
|
|
if addr and self.is_mine(addr):
|
|
dd = self.txo.get(prevout_hash, {})
|
|
for n, v, is_cb in dd.get(addr, []):
|
|
if n == prevout_n:
|
|
if d.get(addr) is None:
|
|
d[addr] = []
|
|
d[addr].append((ser, v))
|
|
break
|
|
else:
|
|
self.pruned_txo[ser] = tx_hash
|
|
|
|
# add outputs
|
|
self.txo[tx_hash] = d = {}
|
|
for n, txo in enumerate(tx.outputs()):
|
|
ser = tx_hash + ':%d'%n
|
|
_type, x, v = txo
|
|
if _type == TYPE_ADDRESS:
|
|
addr = x
|
|
elif _type == TYPE_PUBKEY:
|
|
addr = bitcoin.public_key_to_p2pkh(bfh(x))
|
|
else:
|
|
addr = None
|
|
if addr and self.is_mine(addr):
|
|
if d.get(addr) is None:
|
|
d[addr] = []
|
|
d[addr].append((n, v, is_coinbase))
|
|
# give v to txi that spends me
|
|
next_tx = self.pruned_txo.get(ser)
|
|
if next_tx is not None:
|
|
self.pruned_txo.pop(ser)
|
|
dd = self.txi.get(next_tx, {})
|
|
if dd.get(addr) is None:
|
|
dd[addr] = []
|
|
dd[addr].append((ser, v))
|
|
# save
|
|
self.transactions[tx_hash] = tx
|
|
|
|
def remove_transaction(self, tx_hash):
|
|
with self.transaction_lock:
|
|
self.print_error("removing tx from history", tx_hash)
|
|
#tx = self.transactions.pop(tx_hash)
|
|
for ser, hh in list(self.pruned_txo.items()):
|
|
if hh == tx_hash:
|
|
self.pruned_txo.pop(ser)
|
|
# add tx to pruned_txo, and undo the txi addition
|
|
for next_tx, dd in self.txi.items():
|
|
for addr, l in list(dd.items()):
|
|
ll = l[:]
|
|
for item in ll:
|
|
ser, v = item
|
|
prev_hash, prev_n = ser.split(':')
|
|
if prev_hash == tx_hash:
|
|
l.remove(item)
|
|
self.pruned_txo[ser] = next_tx
|
|
if l == []:
|
|
dd.pop(addr)
|
|
else:
|
|
dd[addr] = l
|
|
try:
|
|
self.txi.pop(tx_hash)
|
|
self.txo.pop(tx_hash)
|
|
except KeyError:
|
|
self.print_error("tx was not in history", tx_hash)
|
|
|
|
def receive_tx_callback(self, tx_hash, tx, tx_height):
|
|
self.add_transaction(tx_hash, tx)
|
|
self.add_unverified_tx(tx_hash, tx_height)
|
|
|
|
def receive_history_callback(self, addr, hist, tx_fees):
|
|
with self.lock:
|
|
old_hist = self.history.get(addr, [])
|
|
for tx_hash, height in old_hist:
|
|
if (tx_hash, height) not in hist:
|
|
# remove tx if it's not referenced in histories
|
|
self.tx_addr_hist[tx_hash].remove(addr)
|
|
if not self.tx_addr_hist[tx_hash]:
|
|
self.remove_transaction(tx_hash)
|
|
self.history[addr] = hist
|
|
|
|
for tx_hash, tx_height in hist:
|
|
# add it in case it was previously unconfirmed
|
|
self.add_unverified_tx(tx_hash, tx_height)
|
|
# add reference in tx_addr_hist
|
|
s = self.tx_addr_hist.get(tx_hash, set())
|
|
s.add(addr)
|
|
self.tx_addr_hist[tx_hash] = s
|
|
# if addr is new, we have to recompute txi and txo
|
|
tx = self.transactions.get(tx_hash)
|
|
if tx is not None and self.txi.get(tx_hash, {}).get(addr) is None and self.txo.get(tx_hash, {}).get(addr) is None:
|
|
self.add_transaction(tx_hash, tx)
|
|
|
|
# Store fees
|
|
self.tx_fees.update(tx_fees)
|
|
|
|
def get_history(self, domain=None):
|
|
# get domain
|
|
if domain is None:
|
|
domain = self.get_addresses()
|
|
# 1. Get the history of each address in the domain, maintain the
|
|
# delta of a tx as the sum of its deltas on domain addresses
|
|
tx_deltas = defaultdict(int)
|
|
for addr in domain:
|
|
h = self.get_address_history(addr)
|
|
for tx_hash, height in h:
|
|
delta = self.get_tx_delta(tx_hash, addr)
|
|
if delta is None or tx_deltas[tx_hash] is None:
|
|
tx_deltas[tx_hash] = None
|
|
else:
|
|
tx_deltas[tx_hash] += delta
|
|
|
|
# 2. create sorted history
|
|
history = []
|
|
for tx_hash in tx_deltas:
|
|
delta = tx_deltas[tx_hash]
|
|
height, conf, timestamp = self.get_tx_height(tx_hash)
|
|
history.append((tx_hash, height, conf, timestamp, delta))
|
|
history.sort(key = lambda x: self.get_txpos(x[0]))
|
|
history.reverse()
|
|
|
|
# 3. add balance
|
|
c, u, x = self.get_balance(domain)
|
|
balance = c + u + x
|
|
h2 = []
|
|
for tx_hash, height, conf, timestamp, delta in history:
|
|
h2.append((tx_hash, height, conf, timestamp, delta, balance))
|
|
if balance is None or delta is None:
|
|
balance = None
|
|
else:
|
|
balance -= delta
|
|
h2.reverse()
|
|
|
|
# fixme: this may happen if history is incomplete
|
|
if balance not in [None, 0]:
|
|
self.print_error("Error: history not synchronized")
|
|
return []
|
|
|
|
return h2
|
|
|
|
def get_label(self, tx_hash):
|
|
label = self.labels.get(tx_hash, '')
|
|
if label is '':
|
|
label = self.get_default_label(tx_hash)
|
|
return label
|
|
|
|
def get_default_label(self, tx_hash):
|
|
if self.txi.get(tx_hash) == {}:
|
|
d = self.txo.get(tx_hash, {})
|
|
labels = []
|
|
for addr in d.keys():
|
|
label = self.labels.get(addr)
|
|
if label:
|
|
labels.append(label)
|
|
return ', '.join(labels)
|
|
return ''
|
|
|
|
def get_tx_status(self, tx_hash, height, conf, timestamp):
|
|
from .util import format_time
|
|
if conf == 0:
|
|
tx = self.transactions.get(tx_hash)
|
|
if not tx:
|
|
return 3, 'unknown'
|
|
is_final = tx and tx.is_final()
|
|
fee = self.tx_fees.get(tx_hash)
|
|
if fee and self.network and self.network.config.has_fee_estimates():
|
|
size = len(tx.raw)/2
|
|
low_fee = int(self.network.config.dynfee(0)*size/1000)
|
|
is_lowfee = fee < low_fee * 0.5
|
|
else:
|
|
is_lowfee = False
|
|
if height==0 and not is_final:
|
|
status = 0
|
|
elif height < 0:
|
|
status = 1
|
|
elif height == 0 and is_lowfee:
|
|
status = 2
|
|
elif height == 0:
|
|
status = 3
|
|
else:
|
|
status = 4
|
|
else:
|
|
status = 4 + min(conf, 6)
|
|
time_str = format_time(timestamp) if timestamp else _("unknown")
|
|
status_str = TX_STATUS[status] if status < 5 else time_str
|
|
return status, status_str
|
|
|
|
def relayfee(self):
|
|
RELAY_FEE = 5000
|
|
MAX_RELAY_FEE = 50000
|
|
f = self.network.relay_fee if self.network and self.network.relay_fee else RELAY_FEE
|
|
return min(f, MAX_RELAY_FEE)
|
|
|
|
def dust_threshold(self):
|
|
# Change <= dust threshold is added to the tx fee
|
|
return 182 * 3 * self.relayfee() / 1000
|
|
|
|
def make_unsigned_transaction(self, inputs, outputs, config, fixed_fee=None, change_addr=None):
|
|
# check outputs
|
|
i_max = None
|
|
for i, o in enumerate(outputs):
|
|
_type, data, value = o
|
|
if _type == TYPE_ADDRESS:
|
|
if not is_address(data):
|
|
raise BaseException("Invalid bitcoin address:" + data)
|
|
if value == '!':
|
|
if i_max is not None:
|
|
raise BaseException("More than one output set to spend max")
|
|
i_max = i
|
|
|
|
# Avoid index-out-of-range with inputs[0] below
|
|
if not inputs:
|
|
raise NotEnoughFunds()
|
|
|
|
if fixed_fee is None and config.fee_per_kb() is None:
|
|
raise BaseException('Dynamic fee estimates not available')
|
|
|
|
for item in inputs:
|
|
self.add_input_info(item)
|
|
|
|
# change address
|
|
if change_addr:
|
|
change_addrs = [change_addr]
|
|
else:
|
|
addrs = self.get_change_addresses()[-self.gap_limit_for_change:]
|
|
if self.use_change and addrs:
|
|
# New change addresses are created only after a few
|
|
# confirmations. Select the unused addresses within the
|
|
# gap limit; if none take one at random
|
|
change_addrs = [addr for addr in addrs if
|
|
self.get_num_tx(addr) == 0]
|
|
if not change_addrs:
|
|
change_addrs = [random.choice(addrs)]
|
|
else:
|
|
change_addrs = [inputs[0]['address']]
|
|
|
|
# Fee estimator
|
|
if fixed_fee is None:
|
|
fee_estimator = partial(self.estimate_fee, config)
|
|
else:
|
|
fee_estimator = lambda size: fixed_fee
|
|
|
|
if i_max is None:
|
|
# Let the coin chooser select the coins to spend
|
|
max_change = self.max_change_outputs if self.multiple_change else 1
|
|
coin_chooser = coinchooser.get_coin_chooser(config)
|
|
tx = coin_chooser.make_tx(inputs, outputs, change_addrs[:max_change],
|
|
fee_estimator, self.dust_threshold())
|
|
else:
|
|
sendable = sum(map(lambda x:x['value'], inputs))
|
|
_type, data, value = outputs[i_max]
|
|
outputs[i_max] = (_type, data, 0)
|
|
tx = Transaction.from_io(inputs, outputs[:])
|
|
fee = fee_estimator(tx.estimated_size())
|
|
amount = max(0, sendable - tx.output_value() - fee)
|
|
outputs[i_max] = (_type, data, amount)
|
|
tx = Transaction.from_io(inputs, outputs[:])
|
|
|
|
# Sort the inputs and outputs deterministically
|
|
tx.BIP_LI01_sort()
|
|
# Timelock tx to current height.
|
|
tx.locktime = self.get_local_height()
|
|
run_hook('make_unsigned_transaction', self, tx)
|
|
return tx
|
|
|
|
def estimate_fee(self, config, size):
|
|
fee = int(config.fee_per_kb() * size / 1000.)
|
|
return fee
|
|
|
|
def mktx(self, outputs, password, config, fee=None, change_addr=None, domain=None):
|
|
coins = self.get_spendable_coins(domain, config)
|
|
tx = self.make_unsigned_transaction(coins, outputs, config, fee, change_addr)
|
|
self.sign_transaction(tx, password)
|
|
return tx
|
|
|
|
def _append_utxos_to_inputs(self, inputs, network, pubkey, txin_type, imax):
|
|
if txin_type != 'p2pk':
|
|
address = bitcoin.pubkey_to_address(txin_type, pubkey)
|
|
sh = bitcoin.address_to_scripthash(address)
|
|
else:
|
|
script = bitcoin.public_key_to_p2pk_script(pubkey)
|
|
sh = bitcoin.script_to_scripthash(script)
|
|
address = '(pubkey)'
|
|
u = network.synchronous_get(('blockchain.scripthash.listunspent', [sh]))
|
|
for item in u:
|
|
if len(inputs) >= imax:
|
|
break
|
|
item['address'] = address
|
|
item['type'] = txin_type
|
|
item['prevout_hash'] = item['tx_hash']
|
|
item['prevout_n'] = item['tx_pos']
|
|
item['pubkeys'] = [pubkey]
|
|
item['x_pubkeys'] = [pubkey]
|
|
item['signatures'] = [None]
|
|
item['num_sig'] = 1
|
|
inputs.append(item)
|
|
|
|
def sweep(self, privkeys, network, config, recipient, fee=None, imax=100):
|
|
|
|
def find_utxos_for_privkey(txin_type, privkey, compressed):
|
|
pubkey = bitcoin.public_key_from_private_key(privkey, compressed)
|
|
self._append_utxos_to_inputs(inputs, network, pubkey, txin_type, imax)
|
|
keypairs[pubkey] = privkey, compressed
|
|
|
|
inputs = []
|
|
keypairs = {}
|
|
for sec in privkeys:
|
|
txin_type, privkey, compressed = bitcoin.deserialize_privkey(sec)
|
|
|
|
find_utxos_for_privkey(txin_type, privkey, compressed)
|
|
|
|
# do other lookups to increase support coverage
|
|
if is_minikey(sec):
|
|
# minikeys don't have a compressed byte
|
|
# we lookup both compressed and uncompressed pubkeys
|
|
find_utxos_for_privkey(txin_type, privkey, not compressed)
|
|
elif txin_type == 'p2pkh':
|
|
# WIF serialization does not distinguish p2pkh and p2pk
|
|
# we also search for pay-to-pubkey outputs
|
|
find_utxos_for_privkey('p2pk', privkey, compressed)
|
|
|
|
if not inputs:
|
|
raise BaseException(_('No inputs found. (Note that inputs need to be confirmed)'))
|
|
|
|
total = sum(i.get('value') for i in inputs)
|
|
if fee is None:
|
|
outputs = [(TYPE_ADDRESS, recipient, total)]
|
|
tx = Transaction.from_io(inputs, outputs)
|
|
fee = self.estimate_fee(config, tx.estimated_size())
|
|
|
|
if total - fee < 0:
|
|
raise BaseException(_('Not enough funds on address.') + '\nTotal: %d satoshis\nFee: %d'%(total, fee))
|
|
|
|
if total - fee < self.dust_threshold():
|
|
raise BaseException(_('Not enough funds on address.') + '\nTotal: %d satoshis\nFee: %d\nDust Threshold: %d'%(total, fee, self.dust_threshold()))
|
|
|
|
outputs = [(TYPE_ADDRESS, recipient, total - fee)]
|
|
locktime = self.get_local_height()
|
|
|
|
tx = Transaction.from_io(inputs, outputs, locktime=locktime)
|
|
tx.set_rbf(True)
|
|
tx.sign(keypairs)
|
|
return tx
|
|
|
|
def is_frozen(self, addr):
|
|
return addr in self.frozen_addresses
|
|
|
|
def set_frozen_state(self, addrs, freeze):
|
|
'''Set frozen state of the addresses to FREEZE, True or False'''
|
|
if all(self.is_mine(addr) for addr in addrs):
|
|
if freeze:
|
|
self.frozen_addresses |= set(addrs)
|
|
else:
|
|
self.frozen_addresses -= set(addrs)
|
|
self.storage.put('frozen_addresses', list(self.frozen_addresses))
|
|
return True
|
|
return False
|
|
|
|
def prepare_for_verifier(self):
|
|
# review transactions that are in the history
|
|
for addr, hist in self.history.items():
|
|
for tx_hash, tx_height in hist:
|
|
# add it in case it was previously unconfirmed
|
|
self.add_unverified_tx(tx_hash, tx_height)
|
|
|
|
# if we are on a pruning server, remove unverified transactions
|
|
with self.lock:
|
|
vr = list(self.verified_tx.keys()) + list(self.unverified_tx.keys())
|
|
for tx_hash in self.transactions.keys():
|
|
if tx_hash not in vr:
|
|
self.print_error("removing transaction", tx_hash)
|
|
self.transactions.pop(tx_hash)
|
|
|
|
def start_threads(self, network):
|
|
self.network = network
|
|
if self.network is not None:
|
|
self.prepare_for_verifier()
|
|
self.verifier = SPV(self.network, self)
|
|
self.synchronizer = Synchronizer(self, network)
|
|
network.add_jobs([self.verifier, self.synchronizer])
|
|
else:
|
|
self.verifier = None
|
|
self.synchronizer = None
|
|
|
|
def stop_threads(self):
|
|
if self.network:
|
|
self.network.remove_jobs([self.synchronizer, self.verifier])
|
|
self.synchronizer.release()
|
|
self.synchronizer = None
|
|
self.verifier = None
|
|
# Now no references to the syncronizer or verifier
|
|
# remain so they will be GC-ed
|
|
self.storage.put('stored_height', self.get_local_height())
|
|
self.save_transactions()
|
|
self.storage.put('verified_tx3', self.verified_tx)
|
|
self.storage.write()
|
|
|
|
def wait_until_synchronized(self, callback=None):
|
|
def wait_for_wallet():
|
|
self.set_up_to_date(False)
|
|
while not self.is_up_to_date():
|
|
if callback:
|
|
msg = "%s\n%s %d"%(
|
|
_("Please wait..."),
|
|
_("Addresses generated:"),
|
|
len(self.addresses(True)))
|
|
callback(msg)
|
|
time.sleep(0.1)
|
|
def wait_for_network():
|
|
while not self.network.is_connected():
|
|
if callback:
|
|
msg = "%s \n" % (_("Connecting..."))
|
|
callback(msg)
|
|
time.sleep(0.1)
|
|
# wait until we are connected, because the user
|
|
# might have selected another server
|
|
if self.network:
|
|
wait_for_network()
|
|
wait_for_wallet()
|
|
else:
|
|
self.synchronize()
|
|
|
|
def can_export(self):
|
|
return not self.is_watching_only() and hasattr(self.keystore, 'get_private_key')
|
|
|
|
def is_used(self, address):
|
|
h = self.history.get(address,[])
|
|
c, u, x = self.get_addr_balance(address)
|
|
return len(h) > 0 and c + u + x == 0
|
|
|
|
def is_empty(self, address):
|
|
c, u, x = self.get_addr_balance(address)
|
|
return c+u+x == 0
|
|
|
|
def address_is_old(self, address, age_limit=2):
|
|
age = -1
|
|
h = self.history.get(address, [])
|
|
for tx_hash, tx_height in h:
|
|
if tx_height == 0:
|
|
tx_age = 0
|
|
else:
|
|
tx_age = self.get_local_height() - tx_height + 1
|
|
if tx_age > age:
|
|
age = tx_age
|
|
return age > age_limit
|
|
|
|
def bump_fee(self, tx, delta):
|
|
if tx.is_final():
|
|
raise BaseException(_("Cannot bump fee: transaction is final"))
|
|
inputs = copy.deepcopy(tx.inputs())
|
|
outputs = copy.deepcopy(tx.outputs())
|
|
for txin in inputs:
|
|
txin['signatures'] = [None] * len(txin['signatures'])
|
|
self.add_input_info(txin)
|
|
# use own outputs
|
|
s = list(filter(lambda x: self.is_mine(x[1]), outputs))
|
|
# ... unless there is none
|
|
if not s:
|
|
s = outputs
|
|
x_fee = run_hook('get_tx_extra_fee', self, tx)
|
|
if x_fee:
|
|
x_fee_address, x_fee_amount = x_fee
|
|
s = filter(lambda x: x[1]!=x_fee_address, s)
|
|
|
|
# prioritize low value outputs, to get rid of dust
|
|
s = sorted(s, key=lambda x: x[2])
|
|
for o in s:
|
|
i = outputs.index(o)
|
|
otype, address, value = o
|
|
if value - delta >= self.dust_threshold():
|
|
outputs[i] = otype, address, value - delta
|
|
delta = 0
|
|
break
|
|
else:
|
|
del outputs[i]
|
|
delta -= value
|
|
if delta > 0:
|
|
continue
|
|
if delta > 0:
|
|
raise BaseException(_('Cannot bump fee: could not find suitable outputs'))
|
|
locktime = self.get_local_height()
|
|
return Transaction.from_io(inputs, outputs, locktime=locktime)
|
|
|
|
def cpfp(self, tx, fee):
|
|
txid = tx.txid()
|
|
for i, o in enumerate(tx.outputs()):
|
|
otype, address, value = o
|
|
if otype == TYPE_ADDRESS and self.is_mine(address):
|
|
break
|
|
else:
|
|
return
|
|
coins = self.get_addr_utxo(address)
|
|
item = coins.get(txid+':%d'%i)
|
|
if not item:
|
|
return
|
|
self.add_input_info(item)
|
|
inputs = [item]
|
|
outputs = [(TYPE_ADDRESS, address, value - fee)]
|
|
locktime = self.get_local_height()
|
|
return Transaction.from_io(inputs, outputs, locktime=locktime)
|
|
|
|
def add_input_info(self, txin):
|
|
address = txin['address']
|
|
if self.is_mine(address):
|
|
txin['type'] = self.get_txin_type(address)
|
|
# segwit needs value to sign
|
|
if txin.get('value') is None and txin['type'] in ['p2wpkh', 'p2wsh', 'p2wpkh-p2sh', 'p2wsh-p2sh']:
|
|
received, spent = self.get_addr_io(address)
|
|
item = received.get(txin['prevout_hash']+':%d'%txin['prevout_n'])
|
|
tx_height, value, is_cb = item
|
|
txin['value'] = value
|
|
self.add_input_sig_info(txin, address)
|
|
|
|
def can_sign(self, tx):
|
|
if tx.is_complete():
|
|
return False
|
|
for k in self.get_keystores():
|
|
if k.can_sign(tx):
|
|
return True
|
|
return False
|
|
|
|
def get_input_tx(self, tx_hash):
|
|
# First look up an input transaction in the wallet where it
|
|
# will likely be. If co-signing a transaction it may not have
|
|
# all the input txs, in which case we ask the network.
|
|
tx = self.transactions.get(tx_hash)
|
|
if not tx and self.network:
|
|
request = ('blockchain.transaction.get', [tx_hash])
|
|
tx = Transaction(self.network.synchronous_get(request))
|
|
return tx
|
|
|
|
def add_hw_info(self, tx):
|
|
# add previous tx for hw wallets
|
|
for txin in tx.inputs():
|
|
tx_hash = txin['prevout_hash']
|
|
txin['prev_tx'] = self.get_input_tx(tx_hash)
|
|
# add output info for hw wallets
|
|
info = {}
|
|
xpubs = self.get_master_public_keys()
|
|
for txout in tx.outputs():
|
|
_type, addr, amount = txout
|
|
if self.is_change(addr):
|
|
index = self.get_address_index(addr)
|
|
pubkeys = self.get_public_keys(addr)
|
|
# sort xpubs using the order of pubkeys
|
|
sorted_pubkeys, sorted_xpubs = zip(*sorted(zip(pubkeys, xpubs)))
|
|
info[addr] = index, sorted_xpubs, self.m if isinstance(self, Multisig_Wallet) else None
|
|
tx.output_info = info
|
|
|
|
def sign_transaction(self, tx, password):
|
|
if self.is_watching_only():
|
|
return
|
|
# hardware wallets require extra info
|
|
if any([(isinstance(k, Hardware_KeyStore) and k.can_sign(tx)) for k in self.get_keystores()]):
|
|
self.add_hw_info(tx)
|
|
# sign
|
|
for k in self.get_keystores():
|
|
try:
|
|
if k.can_sign(tx):
|
|
k.sign_transaction(tx, password)
|
|
except UserCancelled:
|
|
continue
|
|
|
|
def get_unused_addresses(self):
|
|
# fixme: use slots from expired requests
|
|
domain = self.get_receiving_addresses()
|
|
return [addr for addr in domain if not self.history.get(addr)
|
|
and addr not in self.receive_requests.keys()]
|
|
|
|
def get_unused_address(self):
|
|
addrs = self.get_unused_addresses()
|
|
if addrs:
|
|
return addrs[0]
|
|
|
|
def get_receiving_address(self):
|
|
# always return an address
|
|
domain = self.get_receiving_addresses()
|
|
if not domain:
|
|
return
|
|
choice = domain[0]
|
|
for addr in domain:
|
|
if not self.history.get(addr):
|
|
if addr not in self.receive_requests.keys():
|
|
return addr
|
|
else:
|
|
choice = addr
|
|
return choice
|
|
|
|
def get_payment_status(self, address, amount):
|
|
local_height = self.get_local_height()
|
|
received, sent = self.get_addr_io(address)
|
|
l = []
|
|
for txo, x in received.items():
|
|
h, v, is_cb = x
|
|
txid, n = txo.split(':')
|
|
info = self.verified_tx.get(txid)
|
|
if info:
|
|
tx_height, timestamp, pos = info
|
|
conf = local_height - tx_height
|
|
else:
|
|
conf = 0
|
|
l.append((conf, v))
|
|
vsum = 0
|
|
for conf, v in reversed(sorted(l)):
|
|
vsum += v
|
|
if vsum >= amount:
|
|
return True, conf
|
|
return False, None
|
|
|
|
def get_payment_request(self, addr, config):
|
|
r = self.receive_requests.get(addr)
|
|
if not r:
|
|
return
|
|
out = copy.copy(r)
|
|
out['URI'] = 'bitcoin:' + addr + '?amount=' + format_satoshis(out.get('amount'))
|
|
status, conf = self.get_request_status(addr)
|
|
out['status'] = status
|
|
if conf is not None:
|
|
out['confirmations'] = conf
|
|
# check if bip70 file exists
|
|
rdir = config.get('requests_dir')
|
|
if rdir:
|
|
key = out.get('id', addr)
|
|
path = os.path.join(rdir, 'req', key[0], key[1], key)
|
|
if os.path.exists(path):
|
|
baseurl = 'file://' + rdir
|
|
rewrite = config.get('url_rewrite')
|
|
if rewrite:
|
|
baseurl = baseurl.replace(*rewrite)
|
|
out['request_url'] = os.path.join(baseurl, 'req', key[0], key[1], key, key)
|
|
out['URI'] += '&r=' + out['request_url']
|
|
out['index_url'] = os.path.join(baseurl, 'index.html') + '?id=' + key
|
|
websocket_server_announce = config.get('websocket_server_announce')
|
|
if websocket_server_announce:
|
|
out['websocket_server'] = websocket_server_announce
|
|
else:
|
|
out['websocket_server'] = config.get('websocket_server', 'localhost')
|
|
websocket_port_announce = config.get('websocket_port_announce')
|
|
if websocket_port_announce:
|
|
out['websocket_port'] = websocket_port_announce
|
|
else:
|
|
out['websocket_port'] = config.get('websocket_port', 9999)
|
|
return out
|
|
|
|
def get_request_status(self, key):
|
|
r = self.receive_requests.get(key)
|
|
if r is None:
|
|
return PR_UNKNOWN
|
|
address = r['address']
|
|
amount = r.get('amount')
|
|
timestamp = r.get('time', 0)
|
|
if timestamp and type(timestamp) != int:
|
|
timestamp = 0
|
|
expiration = r.get('exp')
|
|
if expiration and type(expiration) != int:
|
|
expiration = 0
|
|
conf = None
|
|
if amount:
|
|
if self.up_to_date:
|
|
paid, conf = self.get_payment_status(address, amount)
|
|
status = PR_PAID if paid else PR_UNPAID
|
|
if status == PR_UNPAID and expiration is not None and time.time() > timestamp + expiration:
|
|
status = PR_EXPIRED
|
|
else:
|
|
status = PR_UNKNOWN
|
|
else:
|
|
status = PR_UNKNOWN
|
|
return status, conf
|
|
|
|
def make_payment_request(self, addr, amount, message, expiration):
|
|
timestamp = int(time.time())
|
|
_id = bh2u(Hash(addr + "%d"%timestamp))[0:10]
|
|
r = {'time':timestamp, 'amount':amount, 'exp':expiration, 'address':addr, 'memo':message, 'id':_id}
|
|
return r
|
|
|
|
def sign_payment_request(self, key, alias, alias_addr, password):
|
|
req = self.receive_requests.get(key)
|
|
alias_privkey = self.export_private_key(alias_addr, password)[0]
|
|
pr = paymentrequest.make_unsigned_request(req)
|
|
paymentrequest.sign_request_with_alias(pr, alias, alias_privkey)
|
|
req['name'] = pr.pki_data
|
|
req['sig'] = bh2u(pr.signature)
|
|
self.receive_requests[key] = req
|
|
self.storage.put('payment_requests', self.receive_requests)
|
|
|
|
def add_payment_request(self, req, config):
|
|
addr = req['address']
|
|
amount = req.get('amount')
|
|
message = req.get('memo')
|
|
self.receive_requests[addr] = req
|
|
self.storage.put('payment_requests', self.receive_requests)
|
|
self.set_label(addr, message) # should be a default label
|
|
|
|
rdir = config.get('requests_dir')
|
|
if rdir and amount is not None:
|
|
key = req.get('id', addr)
|
|
pr = paymentrequest.make_request(config, req)
|
|
path = os.path.join(rdir, 'req', key[0], key[1], key)
|
|
if not os.path.exists(path):
|
|
try:
|
|
os.makedirs(path)
|
|
except OSError as exc:
|
|
if exc.errno != errno.EEXIST:
|
|
raise
|
|
with open(os.path.join(path, key), 'wb') as f:
|
|
f.write(pr.SerializeToString())
|
|
# reload
|
|
req = self.get_payment_request(addr, config)
|
|
with open(os.path.join(path, key + '.json'), 'w') as f:
|
|
f.write(json.dumps(req))
|
|
return req
|
|
|
|
def remove_payment_request(self, addr, config):
|
|
if addr not in self.receive_requests:
|
|
return False
|
|
r = self.receive_requests.pop(addr)
|
|
rdir = config.get('requests_dir')
|
|
if rdir:
|
|
key = r.get('id', addr)
|
|
for s in ['.json', '']:
|
|
n = os.path.join(rdir, 'req', key[0], key[1], key, key + s)
|
|
if os.path.exists(n):
|
|
os.unlink(n)
|
|
self.storage.put('payment_requests', self.receive_requests)
|
|
return True
|
|
|
|
def get_sorted_requests(self, config):
|
|
def f(x):
|
|
try:
|
|
addr = x.get('address')
|
|
return self.get_address_index(addr) or addr
|
|
except:
|
|
return addr
|
|
return sorted(map(lambda x: self.get_payment_request(x, config), self.receive_requests.keys()), key=f)
|
|
|
|
def get_fingerprint(self):
|
|
raise NotImplementedError()
|
|
|
|
def can_import_privkey(self):
|
|
return False
|
|
|
|
def can_import_address(self):
|
|
return False
|
|
|
|
def can_delete_address(self):
|
|
return False
|
|
|
|
def add_address(self, address):
|
|
if address not in self.history:
|
|
self.history[address] = []
|
|
if self.synchronizer:
|
|
self.synchronizer.add(address)
|
|
|
|
def has_password(self):
|
|
return self.storage.get('use_encryption', False)
|
|
|
|
def check_password(self, password):
|
|
self.keystore.check_password(password)
|
|
|
|
def sign_message(self, address, message, password):
|
|
index = self.get_address_index(address)
|
|
return self.keystore.sign_message(index, message, password)
|
|
|
|
def decrypt_message(self, pubkey, message, password):
|
|
addr = self.pubkeys_to_address(pubkey)
|
|
index = self.get_address_index(addr)
|
|
return self.keystore.decrypt_message(index, message, password)
|
|
|
|
|
|
class Simple_Wallet(Abstract_Wallet):
|
|
# wallet with a single keystore
|
|
|
|
def get_keystore(self):
|
|
return self.keystore
|
|
|
|
def get_keystores(self):
|
|
return [self.keystore]
|
|
|
|
def is_watching_only(self):
|
|
return self.keystore.is_watching_only()
|
|
|
|
def can_change_password(self):
|
|
return self.keystore.can_change_password()
|
|
|
|
def update_password(self, old_pw, new_pw, encrypt=False):
|
|
if old_pw is None and self.has_password():
|
|
raise InvalidPassword()
|
|
self.keystore.update_password(old_pw, new_pw)
|
|
self.save_keystore()
|
|
self.storage.set_password(new_pw, encrypt)
|
|
self.storage.write()
|
|
|
|
def save_keystore(self):
|
|
self.storage.put('keystore', self.keystore.dump())
|
|
|
|
|
|
class Imported_Wallet(Simple_Wallet):
|
|
# wallet made of imported addresses
|
|
|
|
wallet_type = 'imported'
|
|
txin_type = 'address'
|
|
|
|
def __init__(self, storage):
|
|
Abstract_Wallet.__init__(self, storage)
|
|
|
|
def is_watching_only(self):
|
|
return self.keystore is None
|
|
|
|
def get_keystores(self):
|
|
return [self.keystore] if self.keystore else []
|
|
|
|
def can_import_privkey(self):
|
|
return bool(self.keystore)
|
|
|
|
def load_keystore(self):
|
|
self.keystore = load_keystore(self.storage, 'keystore') if self.storage.get('keystore') else None
|
|
|
|
def save_keystore(self):
|
|
self.storage.put('keystore', self.keystore.dump())
|
|
|
|
def load_addresses(self):
|
|
self.addresses = self.storage.get('addresses', {})
|
|
# fixme: a reference to addresses is needed
|
|
if self.keystore:
|
|
self.keystore.addresses = self.addresses
|
|
|
|
def save_addresses(self):
|
|
self.storage.put('addresses', self.addresses)
|
|
|
|
def can_change_password(self):
|
|
return not self.is_watching_only()
|
|
|
|
def can_import_address(self):
|
|
return self.is_watching_only()
|
|
|
|
def can_delete_address(self):
|
|
return True
|
|
|
|
def has_seed(self):
|
|
return False
|
|
|
|
def is_deterministic(self):
|
|
return False
|
|
|
|
def is_used(self, address):
|
|
return False
|
|
|
|
def is_change(self, address):
|
|
return False
|
|
|
|
def get_master_public_keys(self):
|
|
return []
|
|
|
|
def is_beyond_limit(self, address, is_change):
|
|
return False
|
|
|
|
def get_fingerprint(self):
|
|
return ''
|
|
|
|
def get_addresses(self, include_change=False):
|
|
return sorted(self.addresses.keys())
|
|
|
|
def get_receiving_addresses(self):
|
|
return self.get_addresses()
|
|
|
|
def get_change_addresses(self):
|
|
return []
|
|
|
|
def import_address(self, address):
|
|
if not bitcoin.is_address(address):
|
|
return ''
|
|
if address in self.addresses:
|
|
return ''
|
|
self.addresses[address] = {}
|
|
self.storage.put('addresses', self.addresses)
|
|
self.storage.write()
|
|
self.add_address(address)
|
|
return address
|
|
|
|
def delete_address(self, address):
|
|
if address not in self.addresses:
|
|
return
|
|
|
|
transactions_to_remove = set() # only referred to by this address
|
|
transactions_new = set() # txs that are not only referred to by address
|
|
with self.lock:
|
|
for addr, details in self.history.items():
|
|
if addr == address:
|
|
for tx_hash, height in details:
|
|
transactions_to_remove.add(tx_hash)
|
|
else:
|
|
for tx_hash, height in details:
|
|
transactions_new.add(tx_hash)
|
|
transactions_to_remove -= transactions_new
|
|
self.history.pop(address, None)
|
|
|
|
for tx_hash in transactions_to_remove:
|
|
self.remove_transaction(tx_hash)
|
|
self.tx_fees.pop(tx_hash, None)
|
|
self.verified_tx.pop(tx_hash, None)
|
|
self.unverified_tx.pop(tx_hash, None)
|
|
self.transactions.pop(tx_hash, None)
|
|
# FIXME: what about pruned_txo?
|
|
|
|
self.storage.put('verified_tx3', self.verified_tx)
|
|
self.save_transactions()
|
|
|
|
self.set_label(address, None)
|
|
self.remove_payment_request(address, {})
|
|
self.set_frozen_state([address], False)
|
|
|
|
pubkey = self.get_public_key(address)
|
|
self.addresses.pop(address)
|
|
if pubkey:
|
|
self.keystore.delete_imported_key(pubkey)
|
|
self.save_keystore()
|
|
self.storage.put('addresses', self.addresses)
|
|
|
|
self.storage.write()
|
|
|
|
def get_address_index(self, address):
|
|
return self.get_public_key(address)
|
|
|
|
def get_public_key(self, address):
|
|
return self.addresses[address].get('pubkey')
|
|
|
|
def import_private_key(self, sec, pw, redeem_script=None):
|
|
try:
|
|
txin_type, pubkey = self.keystore.import_privkey(sec, pw)
|
|
except Exception:
|
|
raise BaseException('Invalid private key', sec)
|
|
if txin_type in ['p2pkh', 'p2wpkh', 'p2wpkh-p2sh']:
|
|
if redeem_script is not None:
|
|
raise BaseException('Cannot use redeem script with', txin_type, sec)
|
|
addr = bitcoin.pubkey_to_address(txin_type, pubkey)
|
|
elif txin_type in ['p2sh', 'p2wsh', 'p2wsh-p2sh']:
|
|
if redeem_script is None:
|
|
raise BaseException('Redeem script required for', txin_type, sec)
|
|
addr = bitcoin.redeem_script_to_address(txin_type, redeem_script)
|
|
else:
|
|
raise NotImplementedError(txin_type)
|
|
self.addresses[addr] = {'type':txin_type, 'pubkey':pubkey, 'redeem_script':redeem_script}
|
|
self.save_keystore()
|
|
self.save_addresses()
|
|
self.storage.write()
|
|
self.add_address(addr)
|
|
return addr
|
|
|
|
def export_private_key(self, address, password):
|
|
d = self.addresses[address]
|
|
pubkey = d['pubkey']
|
|
redeem_script = d['redeem_script']
|
|
sec = pw_decode(self.keystore.keypairs[pubkey], password)
|
|
return sec, redeem_script
|
|
|
|
def get_txin_type(self, address):
|
|
return self.addresses[address].get('type', 'address')
|
|
|
|
def add_input_sig_info(self, txin, address):
|
|
if self.is_watching_only():
|
|
x_pubkey = 'fd' + address_to_script(address)
|
|
txin['x_pubkeys'] = [x_pubkey]
|
|
txin['signatures'] = [None]
|
|
return
|
|
if txin['type'] in ['p2pkh', 'p2wpkh', 'p2wpkh-p2sh']:
|
|
pubkey = self.addresses[address]['pubkey']
|
|
txin['num_sig'] = 1
|
|
txin['x_pubkeys'] = [pubkey]
|
|
txin['signatures'] = [None]
|
|
else:
|
|
redeem_script = self.addresses[address]['redeem_script']
|
|
num_sig = 2
|
|
num_keys = 3
|
|
txin['num_sig'] = num_sig
|
|
txin['redeem_script'] = redeem_script
|
|
txin['signatures'] = [None] * num_keys
|
|
|
|
def pubkeys_to_address(self, pubkey):
|
|
for addr, v in self.addresses.items():
|
|
if v.get('pubkey') == pubkey:
|
|
return addr
|
|
|
|
class Deterministic_Wallet(Abstract_Wallet):
|
|
|
|
def __init__(self, storage):
|
|
Abstract_Wallet.__init__(self, storage)
|
|
self.gap_limit = storage.get('gap_limit', 20)
|
|
|
|
def has_seed(self):
|
|
return self.keystore.has_seed()
|
|
|
|
def is_deterministic(self):
|
|
return self.keystore.is_deterministic()
|
|
|
|
def get_receiving_addresses(self):
|
|
return self.receiving_addresses
|
|
|
|
def get_change_addresses(self):
|
|
return self.change_addresses
|
|
|
|
def get_seed(self, password):
|
|
return self.keystore.get_seed(password)
|
|
|
|
def add_seed(self, seed, pw):
|
|
self.keystore.add_seed(seed, pw)
|
|
|
|
def change_gap_limit(self, value):
|
|
'''This method is not called in the code, it is kept for console use'''
|
|
if value >= self.gap_limit:
|
|
self.gap_limit = value
|
|
self.storage.put('gap_limit', self.gap_limit)
|
|
return True
|
|
elif value >= self.min_acceptable_gap():
|
|
addresses = self.get_receiving_addresses()
|
|
k = self.num_unused_trailing_addresses(addresses)
|
|
n = len(addresses) - k + value
|
|
self.receiving_addresses = self.receiving_addresses[0:n]
|
|
self.gap_limit = value
|
|
self.storage.put('gap_limit', self.gap_limit)
|
|
self.save_addresses()
|
|
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
|
|
addresses = self.get_receiving_addresses()
|
|
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 create_new_address(self, for_change=False):
|
|
assert type(for_change) is bool
|
|
addr_list = self.change_addresses if for_change else self.receiving_addresses
|
|
n = len(addr_list)
|
|
x = self.derive_pubkeys(for_change, n)
|
|
address = self.pubkeys_to_address(x)
|
|
addr_list.append(address)
|
|
self.save_addresses()
|
|
self.add_address(address)
|
|
return address
|
|
|
|
def synchronize_sequence(self, for_change):
|
|
limit = self.gap_limit_for_change if for_change else self.gap_limit
|
|
while True:
|
|
addresses = self.get_change_addresses() if for_change else self.get_receiving_addresses()
|
|
if len(addresses) < limit:
|
|
self.create_new_address(for_change)
|
|
continue
|
|
if list(map(lambda a: self.address_is_old(a), addresses[-limit:] )) == limit*[False]:
|
|
break
|
|
else:
|
|
self.create_new_address(for_change)
|
|
|
|
def synchronize(self):
|
|
with self.lock:
|
|
if self.is_deterministic():
|
|
self.synchronize_sequence(False)
|
|
self.synchronize_sequence(True)
|
|
else:
|
|
if len(self.receiving_addresses) != len(self.keystore.keypairs):
|
|
pubkeys = self.keystore.keypairs.keys()
|
|
self.receiving_addresses = [self.pubkeys_to_address(i) for i in pubkeys]
|
|
self.save_addresses()
|
|
for addr in self.receiving_addresses:
|
|
self.add_address(addr)
|
|
|
|
def is_beyond_limit(self, address, is_change):
|
|
addr_list = self.get_change_addresses() if is_change else self.get_receiving_addresses()
|
|
i = addr_list.index(address)
|
|
prev_addresses = addr_list[:max(0, i)]
|
|
limit = self.gap_limit_for_change if is_change else self.gap_limit
|
|
if len(prev_addresses) < limit:
|
|
return False
|
|
prev_addresses = prev_addresses[max(0, i - limit):]
|
|
for addr in prev_addresses:
|
|
if self.history.get(addr):
|
|
return False
|
|
return True
|
|
|
|
def get_master_public_keys(self):
|
|
return [self.get_master_public_key()]
|
|
|
|
def get_fingerprint(self):
|
|
return self.get_master_public_key()
|
|
|
|
def get_txin_type(self, address):
|
|
return self.txin_type
|
|
|
|
|
|
class Simple_Deterministic_Wallet(Simple_Wallet, Deterministic_Wallet):
|
|
|
|
""" Deterministic Wallet with a single pubkey per address """
|
|
|
|
def __init__(self, storage):
|
|
Deterministic_Wallet.__init__(self, storage)
|
|
|
|
def get_public_key(self, address):
|
|
sequence = self.get_address_index(address)
|
|
pubkey = self.get_pubkey(*sequence)
|
|
return pubkey
|
|
|
|
def load_keystore(self):
|
|
self.keystore = load_keystore(self.storage, 'keystore')
|
|
try:
|
|
xtype = bitcoin.xpub_type(self.keystore.xpub)
|
|
except:
|
|
xtype = 'standard'
|
|
self.txin_type = 'p2pkh' if xtype == 'standard' else xtype
|
|
|
|
def get_pubkey(self, c, i):
|
|
return self.derive_pubkeys(c, i)
|
|
|
|
def get_public_keys(self, address):
|
|
return [self.get_public_key(address)]
|
|
|
|
def add_input_sig_info(self, txin, address):
|
|
derivation = self.get_address_index(address)
|
|
x_pubkey = self.keystore.get_xpubkey(*derivation)
|
|
txin['x_pubkeys'] = [x_pubkey]
|
|
txin['signatures'] = [None]
|
|
txin['num_sig'] = 1
|
|
|
|
def get_master_public_key(self):
|
|
return self.keystore.get_master_public_key()
|
|
|
|
def derive_pubkeys(self, c, i):
|
|
return self.keystore.derive_pubkey(c, i)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class Standard_Wallet(Simple_Deterministic_Wallet):
|
|
wallet_type = 'standard'
|
|
|
|
def pubkeys_to_address(self, pubkey):
|
|
return bitcoin.pubkey_to_address(self.txin_type, pubkey)
|
|
|
|
|
|
class Multisig_Wallet(Deterministic_Wallet):
|
|
# generic m of n
|
|
gap_limit = 20
|
|
|
|
def __init__(self, storage):
|
|
self.wallet_type = storage.get('wallet_type')
|
|
self.m, self.n = multisig_type(self.wallet_type)
|
|
Deterministic_Wallet.__init__(self, storage)
|
|
|
|
def get_pubkeys(self, c, i):
|
|
return self.derive_pubkeys(c, i)
|
|
|
|
def pubkeys_to_address(self, pubkeys):
|
|
redeem_script = self.pubkeys_to_redeem_script(pubkeys)
|
|
return bitcoin.redeem_script_to_address(self.txin_type, redeem_script)
|
|
|
|
def pubkeys_to_redeem_script(self, pubkeys):
|
|
return transaction.multisig_script(sorted(pubkeys), self.m)
|
|
|
|
def derive_pubkeys(self, c, i):
|
|
return [k.derive_pubkey(c, i) for k in self.get_keystores()]
|
|
|
|
def load_keystore(self):
|
|
self.keystores = {}
|
|
for i in range(self.n):
|
|
name = 'x%d/'%(i+1)
|
|
self.keystores[name] = load_keystore(self.storage, name)
|
|
self.keystore = self.keystores['x1/']
|
|
xtype = bitcoin.xpub_type(self.keystore.xpub)
|
|
self.txin_type = 'p2sh' if xtype == 'standard' else xtype
|
|
|
|
def save_keystore(self):
|
|
for name, k in self.keystores.items():
|
|
self.storage.put(name, k.dump())
|
|
|
|
def get_keystore(self):
|
|
return self.keystores.get('x1/')
|
|
|
|
def get_keystores(self):
|
|
return [self.keystores[i] for i in sorted(self.keystores.keys())]
|
|
|
|
def update_password(self, old_pw, new_pw, encrypt=False):
|
|
if old_pw is None and self.has_password():
|
|
raise InvalidPassword()
|
|
for name, keystore in self.keystores.items():
|
|
if keystore.can_change_password():
|
|
keystore.update_password(old_pw, new_pw)
|
|
self.storage.put(name, keystore.dump())
|
|
self.storage.set_password(new_pw, encrypt)
|
|
self.storage.write()
|
|
|
|
def has_seed(self):
|
|
return self.keystore.has_seed()
|
|
|
|
def can_change_password(self):
|
|
return self.keystore.can_change_password()
|
|
|
|
def is_watching_only(self):
|
|
return not any([not k.is_watching_only() for k in self.get_keystores()])
|
|
|
|
def get_master_public_key(self):
|
|
return self.keystore.get_master_public_key()
|
|
|
|
def get_master_public_keys(self):
|
|
return [k.get_master_public_key() for k in self.get_keystores()]
|
|
|
|
def get_fingerprint(self):
|
|
return ''.join(sorted(self.get_master_public_keys()))
|
|
|
|
def add_input_sig_info(self, txin, address):
|
|
# x_pubkeys are not sorted here because it would be too slow
|
|
# they are sorted in transaction.get_sorted_pubkeys
|
|
# pubkeys is set to None to signal that x_pubkeys are unsorted
|
|
derivation = self.get_address_index(address)
|
|
txin['x_pubkeys'] = [k.get_xpubkey(*derivation) for k in self.get_keystores()]
|
|
txin['pubkeys'] = None
|
|
# we need n place holders
|
|
txin['signatures'] = [None] * self.n
|
|
txin['num_sig'] = self.m
|
|
|
|
|
|
wallet_types = ['standard', 'multisig', 'imported']
|
|
|
|
def register_wallet_type(category):
|
|
wallet_types.append(category)
|
|
|
|
wallet_constructors = {
|
|
'standard': Standard_Wallet,
|
|
'old': Standard_Wallet,
|
|
'xpub': Standard_Wallet,
|
|
'imported': Imported_Wallet
|
|
}
|
|
|
|
def register_constructor(wallet_type, constructor):
|
|
wallet_constructors[wallet_type] = constructor
|
|
|
|
# former WalletFactory
|
|
class Wallet(object):
|
|
"""The main wallet "entry point".
|
|
This class is actually a factory that will return a wallet of the correct
|
|
type when passed a WalletStorage instance."""
|
|
|
|
def __new__(self, storage):
|
|
wallet_type = storage.get('wallet_type')
|
|
WalletClass = Wallet.wallet_class(wallet_type)
|
|
wallet = WalletClass(storage)
|
|
# Convert hardware wallets restored with older versions of
|
|
# Electrum to BIP44 wallets. A hardware wallet does not have
|
|
# a seed and plugins do not need to handle having one.
|
|
rwc = getattr(wallet, 'restore_wallet_class', None)
|
|
if rwc and storage.get('seed', ''):
|
|
storage.print_error("converting wallet type to " + rwc.wallet_type)
|
|
storage.put('wallet_type', rwc.wallet_type)
|
|
wallet = rwc(storage)
|
|
return wallet
|
|
|
|
@staticmethod
|
|
def wallet_class(wallet_type):
|
|
if multisig_type(wallet_type):
|
|
return Multisig_Wallet
|
|
if wallet_type in wallet_constructors:
|
|
return wallet_constructors[wallet_type]
|
|
raise RuntimeError("Unknown wallet type: " + wallet_type)
|
|
|
|
|