X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=lib%2Fwallet.py;h=3b68c2a20f917d11ecddcbcdc0fc136c655a2561;hb=e2717284eb01826f2251a8f91f8f0d2a2b06ab35;hp=3cd0c9f2dec3671294bb2ba2b4b5bfe7b7290990;hpb=1662a9e9c5ea8668c7889fc0b47903c8bea2fa55;p=electrum-nvc.git diff --git a/lib/wallet.py b/lib/wallet.py index 3cd0c9f..3b68c2a 100644 --- a/lib/wallet.py +++ b/lib/wallet.py @@ -17,62 +17,36 @@ # along with this program. If not, see . import sys -import base64 import os -import re import hashlib -import copy -import operator import ast import threading import random -import aes -import Queue import time import math -from util import print_msg, print_error, format_satoshis +from util import print_msg, print_error + from bitcoin import * from account import * +from version import * + from transaction import Transaction from plugins import run_hook +import bitcoin +from synchronizer import WalletSynchronizer COINBASE_MATURITY = 100 DUST_THRESHOLD = 5430 -# AES encryption -EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s)) -DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e)) - -def pw_encode(s, password): - if password: - secret = Hash(password) - return EncodeAES(secret, s) - else: - return s - -def pw_decode(s, password): - if password is not None: - secret = Hash(password) - try: - d = DecodeAES(secret, s) - except Exception: - raise Exception('Invalid password') - return d - else: - return s - - +# internal ID for imported account +IMPORTED_ACCOUNT = '/x' - -from version import * - - -class WalletStorage: +class WalletStorage(object): def __init__(self, config): - self.lock = threading.Lock() + self.lock = threading.RLock() self.config = config self.data = {} self.file_exists = False @@ -81,7 +55,6 @@ class WalletStorage: if self.path: self.read(self.path) - def init_path(self, config): """Set the path of the wallet.""" @@ -109,7 +82,6 @@ class WalletStorage: return new_path - def read(self, path): """Read the contents of the wallet file.""" try: @@ -125,21 +97,22 @@ class WalletStorage: self.data = d self.file_exists = True - def get(self, key, default=None): - v = self.data.get(key) - if v is None: - v = default - return v + + with self.lock: + v = self.data.get(key) + if v is None: + v = default + return v def put(self, key, value, save = True): with self.lock: if value is not None: self.data[key] = value - else: + elif key in self.data: self.data.pop(key) - if save: + if save: self.write() def write(self): @@ -152,20 +125,17 @@ class WalletStorage: os.chmod(self.path,stat.S_IREAD | stat.S_IWRITE) - - - -class NewWallet: - +class Abstract_Wallet(object): + """ + Wallet classes are created to handle various address generation methods. + Completion states (watching-only, single account, no seed, etc) are handled inside classes. + """ def __init__(self, storage): - self.storage = storage self.electrum_version = ELECTRUM_VERSION self.gap_limit_for_change = 3 # constant - # saved fields self.seed_version = storage.get('seed_version', NEW_SEED_VERSION) - self.gap_limit = storage.get('gap_limit', 5) self.use_change = storage.get('use_change',True) self.use_encryption = storage.get('use_encryption', False) @@ -174,17 +144,14 @@ class NewWallet: self.frozen_addresses = storage.get('frozen_addresses',[]) self.addressbook = storage.get('contacts', []) - self.imported_keys = storage.get('imported_keys',{}) self.history = storage.get('addr_history',{}) # address -> list(txid, height) self.fee = int(storage.get('fee_per_kb', 10000)) - self.master_public_keys = storage.get('master_public_keys',{}) self.master_private_keys = storage.get('master_private_keys', {}) self.next_addresses = storage.get('next_addresses',{}) - # This attribute is set when wallet.start_threads is called. self.synchronizer = None @@ -192,14 +159,14 @@ class NewWallet: self.transactions = {} tx_list = self.storage.get('transactions',{}) - for k,v in tx_list.items(): + for k, raw in tx_list.items(): try: - tx = Transaction(v) + tx = Transaction.deserialize(raw) except Exception: print_msg("Warning: Cannot deserialize transactions. skipping") continue - self.add_extra_addresses(tx) + self.add_pubkey_addresses(tx) self.transactions[k] = tx for h,tx in self.transactions.items(): @@ -207,7 +174,6 @@ class NewWallet: print_error("removing unreferenced tx", h) self.transactions.pop(h) - # not saved self.prevout_values = {} # my own transaction outputs self.spent_outputs = [] @@ -218,200 +184,115 @@ class NewWallet: # there is a difference between wallet.up_to_date and interface.is_up_to_date() # interface.is_up_to_date() returns true when all requests have been answered and processed # wallet.up_to_date is true when the wallet is synchronized (stronger requirement) - + self.up_to_date = False self.lock = threading.Lock() self.transaction_lock = threading.Lock() self.tx_event = threading.Event() - for tx_hash, tx in self.transactions.items(): self.update_tx_outputs(tx_hash) - - def add_extra_addresses(self, tx): - h = tx.hash() + def add_pubkey_addresses(self, tx): # find the address corresponding to pay-to-pubkey inputs - tx.add_extra_addresses(self.transactions) - for o in tx.d.get('outputs'): - if o.get('is_pubkey'): + h = tx.hash() + + # inputs + tx.add_pubkey_addresses(self.transactions) + + # outputs of tx: inputs of tx2 + for type, x, v in tx.outputs: + if type == 'pubkey': for tx2 in self.transactions.values(): - tx2.add_extra_addresses({h:tx}) + tx2.add_pubkey_addresses({h:tx}) - - def can_create_accounts(self): - return True + def get_action(self): + pass + + def convert_imported_keys(self, password): + for k, v in self.imported_keys.items(): + sec = pw_decode(v, password) + pubkey = public_key_from_private_key(sec) + address = public_key_to_bc_address(pubkey.decode('hex')) + assert address == k + self.import_key(sec, password) + self.imported_keys.pop(k) + self.storage.put('imported_keys', self.imported_keys) + + def load_accounts(self): + self.accounts = {} + self.imported_keys = self.storage.get('imported_keys',{}) + + d = self.storage.get('accounts', {}) + for k, v in d.items(): + if k == 0: + v['mpk'] = self.storage.get('master_public_key') + self.accounts[k] = OldAccount(v) + elif v.get('imported'): + self.accounts[k] = ImportedAccount(v) + elif v.get('xpub3'): + self.accounts[k] = BIP32_Account_2of3(v) + elif v.get('xpub2'): + self.accounts[k] = BIP32_Account_2of2(v) + elif v.get('xpub'): + self.accounts[k] = BIP32_Account(v) + elif v.get('pending'): + self.accounts[k] = PendingAccount(v) + else: + print_error("cannot load account", v) + def synchronize(self): + pass + + def can_create_accounts(self): + return False def set_up_to_date(self,b): with self.lock: self.up_to_date = b - def is_up_to_date(self): with self.lock: return self.up_to_date - def update(self): self.up_to_date = False - while not self.is_up_to_date(): + while not self.is_up_to_date(): time.sleep(0.1) + def is_imported(self, addr): + account = self.accounts.get(IMPORTED_ACCOUNT) + if account: + return addr in account.get_addresses(0) + else: + return False + + def has_imported_keys(self): + account = self.accounts.get(IMPORTED_ACCOUNT) + return account is not None def import_key(self, sec, password): - # check password - seed = self.get_seed(password) try: - address = address_from_private_key(sec) + pubkey = public_key_from_private_key(sec) + address = public_key_to_bc_address(pubkey.decode('hex')) except Exception: raise Exception('Invalid private key') if self.is_mine(address): raise Exception('Address already in wallet') - - # store the originally requested keypair into the imported keys table - self.imported_keys[address] = pw_encode(sec, password ) - self.storage.put('imported_keys', self.imported_keys, True) + + if self.accounts.get(IMPORTED_ACCOUNT) is None: + self.accounts[IMPORTED_ACCOUNT] = ImportedAccount({'imported':{}}) + self.accounts[IMPORTED_ACCOUNT].add(address, pubkey, sec, password) + self.save_accounts() + if self.synchronizer: self.synchronizer.subscribe_to_addresses([address]) return address - - def delete_imported_key(self, addr): - if addr in self.imported_keys: - self.imported_keys.pop(addr) - self.storage.put('imported_keys', self.imported_keys, True) - - - def make_seed(self): - import mnemonic, ecdsa - entropy = ecdsa.util.randrange( pow(2,160) ) - nonce = 0 - while True: - ss = "%040x"%(entropy+nonce) - s = hashlib.sha256(ss.decode('hex')).digest().encode('hex') - # we keep only 13 words, that's approximately 139 bits of entropy - words = mnemonic.mn_encode(s)[0:13] - seed = ' '.join(words) - if is_new_seed(seed): - break # this will remove 8 bits of entropy - nonce += 1 - - return seed - - - def prepare_seed(self, seed): - import unicodedata - return NEW_SEED_VERSION, unicodedata.normalize('NFC', unicode(seed.strip())) - - - def save_seed(self, seed, password): - if self.seed: - raise Exception("a seed exists") - - self.seed_version, self.seed = self.prepare_seed(seed) - if password: - self.seed = pw_encode( self.seed, password) - self.use_encryption = True - else: - self.use_encryption = False - - self.storage.put('seed', self.seed, True) - self.storage.put('seed_version', self.seed_version, True) - self.storage.put('use_encryption', self.use_encryption,True) - self.create_master_keys(password) - - - def create_watching_only_wallet(self, xpub): - self.storage.put('seed_version', self.seed_version, True) - self.add_master_public_key("m/", xpub) - xpub0 = self.add_master_keys("m/", "m/0'", None) - account = BIP32_Account({'xpub':xpub0}) - self.add_account("m/0'", account) - - - def create_accounts(self, password): - seed = pw_decode(self.seed, password) - self.create_account('Main account', password) - - - def add_master_public_key(self, name, mpk): - self.master_public_keys[name] = mpk - self.storage.put('master_public_keys', self.master_public_keys, True) - - - def add_master_private_key(self, name, xpriv, password): - self.master_private_keys[name] = pw_encode(xpriv, password) - self.storage.put('master_private_keys', self.master_private_keys, True) - - - def add_master_keys(self, root, account_id, password): - x = self.master_private_keys.get(root) - if x: - master_xpriv = pw_decode(x, password ) - xpriv, xpub = bip32_private_derivation(master_xpriv, root, account_id) - self.add_master_public_key(account_id, xpub) - self.add_master_private_key(account_id, xpriv, password) - else: - master_xpub = self.master_public_keys[root] - xpub = bip32_public_derivation(master_xpub, root, account_id) - self.add_master_public_key(account_id, xpub) - return xpub - - - def add_root(self, name, mnemonic, password, add_private = True): - seed = mnemonic_to_seed(mnemonic,'').encode('hex') - xpriv, xpub = bip32_root(seed) - self.add_master_public_key(name, xpub) - if add_private: - self.add_master_private_key(name, xpriv, password) - - - def create_master_keys(self, password): - xpriv, xpub = bip32_root(self.get_seed(password)) - self.add_master_public_key("m/", xpub) - self.add_master_private_key("m/", xpriv, password) - - - def find_root_by_master_key(self, xpub): - for key, xpub2 in self.master_public_keys.items(): - if key == "m/":continue - if xpub == xpub2: - return key - - def is_watching_only(self): - return (self.seed == '') and (self.master_private_keys == {}) - - - def num_accounts(self): - keys = self.accounts.keys() - i = 0 - while True: - account_id = self.account_id(i) - if account_id not in keys: break - i += 1 - return i - - - def next_account_address(self, password): - i = self.num_accounts() - account_id = self.account_id(i) - - addr = self.next_addresses.get(account_id) - if not addr: - account = self.make_account(account_id, password) - addr = account.first_address() - self.next_addresses[account_id] = addr - self.storage.put('next_addresses', self.next_addresses) - - return account_id, addr - - def account_id(self, i): - return "m/%d'"%i - - def make_account(self, account_id, password): - """Creates and saves the master keys, but does not save the account""" - xpub = self.add_master_keys("m/", account_id, password) - account = BIP32_Account({'xpub':xpub}) - return account + def delete_imported_key(self, addr): + account = self.accounts[IMPORTED_ACCOUNT] + account.remove(addr) + if not account.get_addresses(0): + self.accounts.pop(IMPORTED_ACCOUNT) + self.save_accounts() def set_label(self, name, text = None): changed = False @@ -431,73 +312,8 @@ class NewWallet: run_hook('set_label', name, text, changed) return changed - - def create_account(self, name, password): - i = self.num_accounts() - account_id = self.account_id(i) - account = self.make_account(account_id, password) - self.add_account(account_id, account) - if name: - self.set_label(account_id, name) - - # add address of the next account - _, _ = self.next_account_address(password) - - - def add_account(self, account_id, account): - self.accounts[account_id] = account - if account_id in self.pending_accounts: - self.pending_accounts.pop(account_id) - self.storage.put('pending_accounts', self.pending_accounts) - self.save_accounts() - - - def save_accounts(self): - d = {} - for k, v in self.accounts.items(): - d[k] = v.dump() - self.storage.put('accounts', d, True) - - - - def load_accounts(self): - d = self.storage.get('accounts', {}) - self.accounts = {} - for k, v in d.items(): - if k == 0: - v['mpk'] = self.storage.get('master_public_key') - self.accounts[k] = OldAccount(v) - elif v.get('xpub3'): - self.accounts[k] = BIP32_Account_2of3(v) - elif v.get('xpub2'): - self.accounts[k] = BIP32_Account_2of2(v) - elif v.get('xpub'): - self.accounts[k] = BIP32_Account(v) - else: - raise - - self.pending_accounts = self.storage.get('pending_accounts',{}) - - - def delete_pending_account(self, k): - self.pending_accounts.pop(k) - self.storage.put('pending_accounts', self.pending_accounts) - - def account_is_pending(self, k): - return k in self.pending_accounts - - def create_pending_account(self, name, password): - account_id, addr = self.next_account_address(password) - self.set_label(account_id, name) - self.pending_accounts[account_id] = addr - self.storage.put('pending_accounts', self.pending_accounts) - - def get_pending_accounts(self): - return self.pending_accounts.items() - - def addresses(self, include_change = True, _next=True): - o = self.get_account_addresses(-1, include_change) + o = [] for a in self.accounts.keys(): o += self.get_account_addresses(a, include_change) @@ -507,37 +323,16 @@ class NewWallet: o += [addr] return o - def is_mine(self, address): return address in self.addresses(True) - def is_change(self, address): if not self.is_mine(address): return False - if address in self.imported_keys.keys(): return False acct, s = self.get_address_index(address) if s is None: return False return s[0] == 1 - def get_master_public_keys(self): - out = {} - for k, account in self.accounts.items(): - name = self.get_account_name(k) - mpk_text = '\n\n'.join( account.get_master_pubkeys() ) - out[name] = mpk_text - return out - - def get_master_private_key(self, account, password): - k = self.master_private_keys.get(account) - if not k: return - xpriv = pw_decode( k, password) - return xpriv - - def get_address_index(self, address): - if address in self.imported_keys.keys(): - return -1, None - for account in self.accounts.keys(): for for_change in [0,1]: addresses = self.accounts[account].get_addresses(for_change) @@ -551,164 +346,63 @@ class NewWallet: raise Exception("Address not found", address) - - def getpubkeys(self, addr): - assert is_valid(addr) and self.is_mine(addr) - account, sequence = self.get_address_index(addr) - if account != -1: - a = self.accounts[account] - return a.get_pubkeys( sequence ) - - - def get_roots(self, account): - roots = [] - for a in account.split('&'): - s = a.strip() - m = re.match("m/(\d+')", s) - roots.append( m.group(1) ) - return roots - - - def is_seeded(self, account): - return True - - - for root in self.get_roots(account): - if root not in self.master_private_keys.keys(): - return False - return True - - def rebase_sequence(self, account, sequence): - # account has one or more xpub - # sequence is a sequence of public derivations - c, i = sequence - dd = [] - for a in account.split('&'): - s = a.strip() - m = re.match("m/(\d+)'", s) - root = "m/" - num = int(m.group(1)) - dd.append( (root, [num,c,i] ) ) - return dd - - - - - - def get_seed(self, password): - s = pw_decode(self.seed, password) - seed = mnemonic_to_seed(s,'').encode('hex') - return seed - - - def get_mnemonic(self, password): - return pw_decode(self.seed, password) - - def get_private_key(self, address, password): if self.is_watching_only(): return [] - - # first check the provided password - seed = self.get_seed(password) - - out = [] - if address in self.imported_keys.keys(): - out.append( pw_decode( self.imported_keys[address], password ) ) - else: - account_id, sequence = self.get_address_index(address) - account = self.accounts[account_id] - xpubs = account.get_master_pubkeys() - roots = [k for k, v in self.master_public_keys.iteritems() if v in xpubs] - for root in roots: - xpriv = self.get_master_private_key(root, password) - if not xpriv: - continue - _, _, _, c, k = deserialize_xkey(xpriv) - pk = bip32_private_key( sequence, k, c ) - out.append(pk) - - return out - + account_id, sequence = self.get_address_index(address) + return self.accounts[account_id].get_private_key(sequence, self, password) def get_public_keys(self, address): account_id, sequence = self.get_address_index(address) return self.accounts[account_id].get_pubkeys(sequence) + def can_sign(self, tx): - def add_keypairs_from_wallet(self, tx, keypairs, password): - for txin in tx.inputs: - address = txin['address'] - if not self.is_mine(address): - continue - private_keys = self.get_private_key(address, password) - for sec in private_keys: - pubkey = public_key_from_private_key(sec) - keypairs[ pubkey ] = sec - if address in self.imported_keys.keys(): - txin['redeemPubkey'] = pubkey - - - def add_keypairs_from_KeyID(self, tx, keypairs, password): - # first check the provided password - seed = self.get_seed(password) - - for txin in tx.inputs: - keyid = txin.get('KeyID') - if keyid: - roots = [] - for s in keyid.split('&'): - m = re.match("bip32\((.*),(/\d+/\d+)\)", s) - if not m: continue - xpub = m.group(1) - sequence = m.group(2) - root = self.find_root_by_master_key(xpub) - if not root: continue - sequence = map(lambda x:int(x), sequence.strip('/').split('/')) - root = root + '%d'%sequence[0] - sequence = sequence[1:] - roots.append((root,sequence)) - - account_id = " & ".join( map(lambda x:x[0], roots) ) - account = self.accounts.get(account_id) - if not account: continue - addr = account.get_address(*sequence) - txin['address'] = addr # fixme: side effect - pk = self.get_private_key(addr, password) - for sec in pk: - pubkey = public_key_from_private_key(sec) - keypairs[pubkey] = sec + if self.is_watching_only(): + return False + if tx.is_complete(): + return False + addr_list, xpub_list = tx.inputs_to_sign() + for addr in addr_list: + if self.is_mine(addr): + return True - def signrawtransaction(self, tx, input_info, private_keys, password): + mpk = [ self.master_public_keys[k] for k in self.master_private_keys.keys() ] + for xpub, sequence in xpub_list: + if xpub in mpk: + return True - # check that the password is correct - seed = self.get_seed(password) + return False - # add input info - tx.add_input_info(input_info) + def add_keypairs(self, tx, keypairs, password): + # first check the provided password. This will raise if invalid. + self.check_password(password) - # add redeem script for coins that are in the wallet - # FIXME: add redeemPubkey too! + addr_list, xpub_list = tx.inputs_to_sign() + for addr in addr_list: + if self.is_mine(addr): + private_keys = self.get_private_key(addr, password) + for sec in private_keys: + pubkey = public_key_from_private_key(sec) + keypairs[ pubkey ] = sec - try: - unspent_coins = self.get_unspent_coins() - except: - # an exception may be raised is the wallet is not synchronized - unspent_coins = [] - - for txin in tx.inputs: - for item in unspent_coins: - if txin['prevout_hash'] == item['prevout_hash'] and txin['prevout_n'] == item['prevout_n']: - print_error( "tx input is in unspent coins" ) - txin['scriptPubKey'] = item['scriptPubKey'] - account, sequence = self.get_address_index(item['address']) - if account != -1: - txin['redeemScript'] = self.accounts[account].redeem_script(sequence) - print_error("added redeemScript", txin['redeemScript']) + for xpub, sequence in xpub_list: + # look for account that can sign + for k, account in self.accounts.items(): + if xpub in account.get_master_pubkeys(): break + else: + continue + pk = account.get_private_key(sequence, self, password) + for sec in pk: + pubkey = public_key_from_private_key(sec) + keypairs[pubkey] = sec + def signrawtransaction(self, tx, private_keys, password): + # check that the password is correct. This will raise if it's not. + self.get_seed(password) # build a list of public/private keys keypairs = {} @@ -718,14 +412,12 @@ class NewWallet: pubkey = public_key_from_private_key(sec) keypairs[ pubkey ] = sec - # add private_keys from KeyID - self.add_keypairs_from_KeyID(tx, keypairs, password) + # add private_keys + self.add_keypairs(tx, keypairs, password) - # add private keys from wallet - self.add_keypairs_from_wallet(tx, keypairs, password) + # sign the transaction self.sign_transaction(tx, keypairs, password) - def sign_message(self, address, message, password): keys = self.get_private_key(address, password) assert len(keys) == 1 @@ -734,176 +426,57 @@ class NewWallet: compressed = is_compressed(sec) return key.sign_message(message, compressed, address) - - def decrypt_message(self, pubkey, message, password): address = public_key_to_bc_address(pubkey.decode('hex')) keys = self.get_private_key(address, password) secret = keys[0] ec = regenerate_key(secret) decrypted = ec.decrypt_message(message) - return decrypted[0] - - - def change_gap_limit(self, value): - if value >= self.gap_limit: - self.gap_limit = value - self.storage.put('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.storage.put('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.network.get_local_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 check_pending_accounts(self): - for account_id, addr in self.next_addresses.items(): - if self.address_is_old(addr): - print_error( "creating account", account_id ) - xpub = self.master_public_keys[account_id] - account = BIP32_Account({'xpub':xpub}) - self.add_account(account_id, account) - self.next_addresses.pop(account_id) - - - def synchronize_account(self, account): - new = [] - new += self.synchronize_sequence(account, 0) - new += self.synchronize_sequence(account, 1) - return new - - - def synchronize(self): - self.check_pending_accounts() - new = [] - for account in self.accounts.values(): - new += self.synchronize_account(account) - if new: - self.save_accounts() - self.storage.put('addr_history', self.history, True) - return new - + return decrypted def is_found(self): - return self.history.values() != [[]] * len(self.history) - + return self.history.values() != [[]] * len(self.history) def add_contact(self, address, label=None): self.addressbook.append(address) self.storage.put('contacts', self.addressbook, True) - if label: + if label: self.set_label(address, label) - def delete_contact(self, addr): if addr in self.addressbook: self.addressbook.remove(addr) self.storage.put('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: + for addr in tx.get_output_addresses(): 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 + n = 0 for tx in self.transactions.values(): - if address in map(lambda x:x[0], tx.outputs): n += 1 + if address in tx.get_output_addresses(): 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 = "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 "-" 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): + for i, (addr, value) in enumerate(tx.get_outputs()): key = tx_hash+ ':%d'%i self.prevout_values[key] = value @@ -912,9 +485,8 @@ class NewWallet: key = item['prevout_hash'] + ':%d'%item['prevout_n'] self.spent_outputs.append(key) - def get_addr_balance(self, address): - assert self.is_mine(address) + #assert self.is_mine(address) h = self.history.get(address,[]) if h == ['*']: return 0,0 c = u = 0 @@ -924,7 +496,7 @@ class NewWallet: tx = self.transactions.get(tx_hash) if not tx: continue - for i, (addr, value) in enumerate(tx.outputs): + for i, (addr, value) in enumerate(tx.get_outputs()): if addr == address: key = tx_hash + ':%d'%i received_coins.append(key) @@ -939,10 +511,10 @@ class NewWallet: if addr == address: key = item['prevout_hash'] + ':%d'%item['prevout_n'] value = self.prevout_values.get( key ) - if key in received_coins: + if key in received_coins: v -= value - for i, (addr, value) in enumerate(tx.outputs): + for i, (addr, value) in enumerate(tx.get_outputs()): key = tx_hash + ':%d'%i if addr == address: v += value @@ -953,54 +525,30 @@ class NewWallet: u += v return c, u - def get_account_name(self, k): - default = "Unnamed account" - m = re.match("m/0'/(\d+)", k) - if m: - num = m.group(1) - if num == '0': - default = "Main account" - else: - default = "Account %s"%num - - m = re.match("m/1'/(\d+) & m/2'/(\d+)", k) - if m: - num = m.group(1) - default = "2of2 account %s"%num - name = self.labels.get(k, default) - return name - + return self.labels.get(k, self.accounts[k].get_name(k)) def get_account_names(self): - accounts = {} - for k, account in self.accounts.items(): - accounts[k] = self.get_account_name(k) - if self.imported_keys: - accounts[-1] = 'Imported keys' - return accounts - + account_names = {} + for k in self.accounts.keys(): + account_names[k] = self.get_account_name(k) + return account_names 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: + o = self.addresses(include_change) + elif a in self.accounts: ac = self.accounts[a] o = ac.get_addresses(0) if include_change: o += ac.get_addresses(1) return o - def get_imported_balance(self): - return self.get_balance(self.imported_keys.keys()) - def get_account_balance(self, account): return self.get_balance(self.get_account_addresses(account)) def get_frozen_balance(self): return self.get_balance(self.frozen_addresses) - + def get_balance(self, domain=None): if domain is None: domain = self.addresses(True) cc = uu = 0 @@ -1010,7 +558,6 @@ class NewWallet: uu += u return cc, uu - def get_unspent_coins(self, domain=None): coins = [] if domain is None: domain = self.addresses(True) @@ -1021,10 +568,10 @@ class NewWallet: tx = self.transactions.get(tx_hash) if tx is None: raise Exception("Wallet not synchronized") is_coinbase = tx.inputs[0].get('prevout_hash') == '0'*64 - for o in tx.d.get('outputs'): - output = o.copy() - if output.get('address') != addr: continue - key = tx_hash + ":%d" % output.get('prevout_n') + for i, (address, value) in enumerate(tx.get_outputs()): + output = {'address':address, 'value':value, 'prevout_n':i} + if address != addr: continue + key = tx_hash + ":%d"%i if key in self.spent_outputs: continue output['prevout_hash'] = tx_hash output['height'] = tx_height @@ -1035,28 +582,27 @@ class NewWallet: if coins: coins = sorted(coins) if coins[-1][0] != 0: - while coins[0][0] == 0: + while coins[0][0] == 0: coins = coins[1:] + [ coins[0] ] return [x[1] for x in coins] - - def choose_tx_inputs( self, amount, fixed_fee, num_outputs, domain = None ): + def choose_tx_inputs( self, amount, fixed_fee, num_outputs, domain = None, coins = None ): """ todo: minimize tx size """ total = 0 fee = self.fee if fixed_fee is None else fixed_fee - if domain is None: - domain = self.addresses(True) - for i in self.frozen_addresses: - if i in domain: domain.remove(i) + if not coins: + if domain is None: + domain = self.addresses(True) + for i in self.frozen_addresses: + if i in domain: domain.remove(i) + coins = self.get_unspent_coins(domain) - coins = self.get_unspent_coins(domain) inputs = [] for item in coins: if item.get('coinbase') and item.get('height') + COINBASE_MATURITY > self.network.get_local_height(): continue - addr = item.get('address') v = item.get('value') total += v inputs.append(item) @@ -1067,18 +613,16 @@ class NewWallet: return inputs, total, fee - def set_fee(self, fee): if self.fee != fee: self.fee = fee self.storage.put('fee_per_kb', self.fee, True) - + def estimated_fee(self, inputs, num_outputs): estimated_size = len(inputs) * 180 + num_outputs * 34 # this assumes non-compressed keys fee = self.fee * int(math.ceil(estimated_size/1000.)) return fee - def add_tx_change( self, inputs, outputs, amount, fee, total, change_addr=None): "add change to a transaction" change_amount = total - ( amount + fee ) @@ -1089,22 +633,20 @@ class NewWallet: address = inputs[0].get('address') account, _ = self.get_address_index(address) - if not self.use_change or account == -1: + if not self.use_change or account == IMPORTED_ACCOUNT: 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)] + outputs[posn:posn] = [( 'address', 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 '*' @@ -1113,11 +655,10 @@ class NewWallet: status += tx_hash + ':%d:' % height return hashlib.sha256( status ).digest().encode('hex') - def receive_tx_callback(self, tx_hash, tx, tx_height): with self.transaction_lock: - self.add_extra_addresses(tx) + self.add_pubkey_addresses(tx) 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) @@ -1125,11 +666,10 @@ class NewWallet: self.transactions[tx_hash] = tx self.network.pending_transactions_for_notifications.append(tx) self.save_transactions() - if self.verifier and tx_height>0: + 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(): @@ -1140,7 +680,7 @@ class NewWallet: if not self.check_new_history(addr, hist): raise Exception("error: received history for %s is not consistent with known transactions"%addr) - + with self.lock: self.history[addr] = hist self.storage.put('addr_history', self.history, True) @@ -1151,7 +691,6 @@ class NewWallet: # 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): if not self.verifier: return [] @@ -1160,7 +699,7 @@ class NewWallet: 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) @@ -1184,22 +723,19 @@ class NewWallet: 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 + for o_addr in tx.get_output_addresses(): if not self.is_mine(o_addr): try: default_label = self.labels[o_addr] @@ -1209,20 +745,17 @@ class NewWallet: else: default_label = '(internal)' else: - for o in tx.outputs: - o_addr, _ = o + for o_addr in tx.get_output_addresses(): if self.is_mine(o_addr) and not self.is_change(o_addr): break else: - for o in tx.outputs: - o_addr, _ = o + for o_addr in tx.get_output_addresses(): 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: @@ -1230,48 +763,53 @@ class NewWallet: return default_label - - def make_unsigned_transaction(self, outputs, fee=None, change_addr=None, domain=None ): - for address, x in outputs: - assert is_valid(address), "Address " + address + " is invalid!" - amount = sum( map(lambda x:x[1], outputs) ) - inputs, total, fee = self.choose_tx_inputs( amount, fee, len(outputs), domain ) + def make_unsigned_transaction(self, outputs, fee=None, change_addr=None, domain=None, coins=None ): + for type, address, x in outputs: + if type == 'op_return': + continue + if type == 'address': + assert is_address(address), "Address " + address + " is invalid!" + amount = sum( map(lambda x:x[2], outputs) ) + inputs, total, fee = self.choose_tx_inputs( amount, fee, len(outputs), domain, coins ) if not inputs: raise ValueError("Not enough funds") - self.add_input_info(inputs) + for txin in inputs: + self.add_input_info(txin) outputs = self.add_tx_change(inputs, outputs, amount, fee, total, change_addr) - return Transaction.from_io(inputs, outputs) - + return Transaction(inputs, outputs) - def mktx(self, outputs, password, fee=None, change_addr=None, domain= None ): - tx = self.make_unsigned_transaction(outputs, fee, change_addr, domain) + def mktx(self, outputs, password, fee=None, change_addr=None, domain= None, coins = None ): + tx = self.make_unsigned_transaction(outputs, fee, change_addr, domain, coins) keypairs = {} - self.add_keypairs_from_wallet(tx, keypairs, password) + self.add_keypairs(tx, keypairs, password) if keypairs: self.sign_transaction(tx, keypairs, password) return tx - - def add_input_info(self, inputs): - for txin in inputs: - address = txin['address'] - if address in self.imported_keys.keys(): - continue - account_id, sequence = self.get_address_index(address) - account = self.accounts[account_id] - txin['KeyID'] = account.get_keyID(sequence) - redeemScript = account.redeem_script(sequence) - if redeemScript: - txin['redeemScript'] = redeemScript - else: - txin['redeemPubkey'] = account.get_pubkey(*sequence) - + def add_input_info(self, txin): + address = txin['address'] + account_id, sequence = self.get_address_index(address) + account = self.accounts[account_id] + redeemScript = account.redeem_script(*sequence) + pubkeys = account.get_pubkeys(*sequence) + x_pubkeys = account.get_xpubkeys(*sequence) + # sort pubkeys and x_pubkeys, using the order of pubkeys + pubkeys, x_pubkeys = zip( *sorted(zip(pubkeys, x_pubkeys))) + txin['pubkeys'] = list(pubkeys) + txin['x_pubkeys'] = list(x_pubkeys) + txin['signatures'] = [None] * len(pubkeys) + + if redeemScript: + txin['redeemScript'] = redeemScript + txin['num_sig'] = 2 + else: + txin['redeemPubkey'] = account.get_pubkey(*sequence) + txin['num_sig'] = 1 def sign_transaction(self, tx, keypairs, password): tx.sign(keypairs) run_hook('sign_transaction', tx, password) - def sendtx(self, tx): # synchronous h = self.send_tx(tx) @@ -1289,27 +827,25 @@ class NewWallet: self.tx_event.set() def receive_tx(self, tx_hash, tx): - out = self.tx_result + out = self.tx_result if out != tx_hash: return False, "error: " + out run_hook('receive_tx', tx, self) return True, out + def update_password(self, old_password, new_password): + if new_password == '': + new_password = None + if self.has_seed(): + decoded = self.get_seed(old_password) + self.seed = pw_encode( decoded, new_password) + self.storage.put('seed', self.seed, True) - def update_password(self, old_password, new_password): - if new_password == '': new_password = None - decoded = self.get_seed(old_password) - self.seed = pw_encode( decoded, new_password) - self.storage.put('seed', self.seed, True) - self.use_encryption = (new_password != None) - self.storage.put('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.storage.put('imported_keys', self.imported_keys, True) + imported_account = self.accounts.get(IMPORTED_ACCOUNT) + if imported_account: + imported_account.update_password(old_password, new_password) + self.save_accounts() for k, v in self.master_private_keys.items(): b = pw_decode(v, old_password) @@ -1317,6 +853,8 @@ class NewWallet: self.master_private_keys[k] = c self.storage.put('master_private_keys', self.master_private_keys, True) + self.use_encryption = (new_password != None) + self.storage.put('use_encryption', self.use_encryption,True) def freeze(self,addr): if self.is_mine(addr) and addr not in self.frozen_addresses: @@ -1334,7 +872,6 @@ class NewWallet: else: return False - def set_verifier(self, verifier): self.verifier = verifier @@ -1346,17 +883,13 @@ class NewWallet: # 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: @@ -1384,7 +917,7 @@ class NewWallet: 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 @@ -1392,7 +925,7 @@ class NewWallet: 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: + for _addr in tx.get_output_addresses(): # assert not self.is_mine(_addr) ext_requests.append( ('blockchain.address.get_history', [_addr]) ) @@ -1413,15 +946,13 @@ class NewWallet: return True - - def check_new_tx(self, tx_hash, tx): - # 1 check that tx is referenced in addr_history. + # 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: + if txh == tx_hash: addresses.append(addr) if not addresses: @@ -1434,7 +965,6 @@ class NewWallet: return True - def start_threads(self, network): from verifier import TxVerifier self.network = network @@ -1453,6 +983,197 @@ class NewWallet: self.verifier.stop() self.synchronizer.stop() + def restore(self, cb): + pass + + def get_accounts(self): + return self.accounts + + def save_accounts(self): + d = {} + for k, v in self.accounts.items(): + d[k] = v.dump() + self.storage.put('accounts', d, True) + + def can_import(self): + return not self.is_watching_only() + + def is_used(self, address): + h = self.history.get(address,[]) + c, u = self.get_addr_balance(address) + return len(h), len(h) > 0 and c == -u + + def address_is_old(self, address, age_limit=2): + 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.network.get_local_height() - tx_height + 1 + if tx_age > age: + age = tx_age + return age > age_limit + + +class Imported_Wallet(Abstract_Wallet): + + def __init__(self, storage): + Abstract_Wallet.__init__(self, storage) + a = self.accounts.get(IMPORTED_ACCOUNT) + if not a: + self.accounts[IMPORTED_ACCOUNT] = ImportedAccount({'imported':{}}) + self.storage.put('wallet_type', 'imported', True) + + def is_watching_only(self): + acc = self.accounts[IMPORTED_ACCOUNT] + n = acc.keypairs.values() + return n == [(None, None)] * len(n) + + def has_seed(self): + return False + + def is_deterministic(self): + return False + + def check_password(self, password): + self.accounts[IMPORTED_ACCOUNT].get_private_key((0,0), self, password) + + def is_used(self, address): + h = self.history.get(address,[]) + return len(h), False + + def get_master_public_keys(self): + return {} + + def is_beyond_limit(self, address, account, is_change): + return False + + +class Deterministic_Wallet(Abstract_Wallet): + + def __init__(self, storage): + Abstract_Wallet.__init__(self, storage) + + def has_seed(self): + return self.seed != '' + + def is_deterministic(self): + return True + + def is_watching_only(self): + return not self.has_seed() + + def add_seed(self, seed, password): + if self.seed: + raise Exception("a seed exists") + + self.seed_version, self.seed = self.prepare_seed(seed) + if password: + self.seed = pw_encode( self.seed, password) + self.use_encryption = True + else: + self.use_encryption = False + + self.storage.put('seed', self.seed, True) + self.storage.put('seed_version', self.seed_version, True) + self.storage.put('use_encryption', self.use_encryption,True) + self.create_master_keys(password) + + def get_seed(self, password): + return pw_decode(self.seed, password) + + def get_mnemonic(self, password): + return self.get_seed(password) + + def change_gap_limit(self, value): + if value >= self.gap_limit: + self.gap_limit = value + self.storage.put('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.storage.put('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 create_new_address(self, account=None, for_change=0): + if account is None: + account = self.default_account() + address = account.create_new_address(for_change) + self.history[address] = [] + if self.synchronizer: + self.synchronizer.add(address) + self.save_accounts() + return address + + def synchronize_sequence(self, account, for_change): + limit = self.gap_limit_for_change if for_change else self.gap_limit + while True: + addresses = account.get_addresses(for_change) + if len(addresses) < limit: + self.create_new_address(account, for_change) + continue + if map( lambda a: self.address_is_old(a), addresses[-limit:] ) == limit*[False]: + break + else: + self.create_new_address(account, for_change) + + def check_pending_accounts(self): + for account_id, addr in self.next_addresses.items(): + if self.address_is_old(addr): + print_error( "creating account", account_id ) + xpub = self.master_public_keys[account_id] + account = BIP32_Account({'xpub':xpub}) + self.add_account(account_id, account) + self.next_addresses.pop(account_id) + + def synchronize_account(self, account): + self.synchronize_sequence(account, 0) + self.synchronize_sequence(account, 1) + + def synchronize(self): + self.check_pending_accounts() + for account in self.accounts.values(): + if type(account) in [ImportedAccount, PendingAccount]: + continue + self.synchronize_account(account) def restore(self, callback): from i18n import _ @@ -1462,8 +1183,8 @@ class NewWallet: msg = "%s\n%s %d\n%s %.1f"%( _("Please wait..."), _("Addresses generated:"), - len(self.addresses(True)), - _("Kilobytes received:"), + len(self.addresses(True)), + _("Kilobytes received:"), self.network.interface.bytes_received/1024.) apply(callback, (msg,)) @@ -1481,229 +1202,281 @@ class NewWallet: wait_for_wallet() else: self.synchronize() - self.fill_addressbook() + def create_account(self, name, password): + i = self.num_accounts() + account_id = self.account_id(i) + account = self.make_account(account_id, password) + self.add_account(account_id, account) + if name: + self.set_label(account_id, name) + # add address of the next account + _, _ = self.next_account_address(password) -class Wallet_2of2(NewWallet): - def __init__(self, storage): - NewWallet.__init__(self, storage) - self.storage.put('wallet_type', '2of2', True) + def add_account(self, account_id, account): + self.accounts[account_id] = account + self.save_accounts() - def can_create_accounts(self): - return False + def account_is_pending(self, k): + return type(self.accounts.get(k)) == PendingAccount - def make_account(self, account_id, password): - """Creates and saves the master keys, but does not save the account""" - xpub1 = self.master_public_keys.get("m/") - xpub2 = self.master_public_keys.get("cold/") - account = BIP32_Account_2of2({'xpub':xpub1, 'xpub2':xpub2}) - self.add_account('m/', account) + def delete_pending_account(self, k): + assert self.account_is_pending(k) + self.accounts.pop(k) + self.save_accounts() - def get_master_public_keys(self): - xpub1 = self.master_public_keys.get("m/") - xpub2 = self.master_public_keys.get("cold/") - return {'hot':xpub1, 'cold':xpub2} + def create_pending_account(self, name, password): + account_id, addr = self.next_account_address(password) + self.set_label(account_id, name) + self.accounts[account_id] = PendingAccount({'pending':addr}) + self.save_accounts() -class Wallet_2of3(Wallet_2of2): + def is_beyond_limit(self, address, account, is_change): + if type(account) == ImportedAccount: + return False + addr_list = account.get_addresses(is_change) + 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_action(self): + if not self.get_master_public_key(): + return 'create_seed' + if not self.accounts: + return 'create_accounts' + + +class NewWallet(Deterministic_Wallet): def __init__(self, storage): - NewWallet.__init__(self, storage) - self.storage.put('wallet_type', '2of3', True) + Deterministic_Wallet.__init__(self, storage) - def create_accounts(self, password): - xpub1 = self.master_public_keys.get("m/") - xpub2 = self.master_public_keys.get("cold/") - xpub3 = self.master_public_keys.get("remote/") - account = BIP32_Account_2of3({'xpub':xpub1, 'xpub2':xpub2, 'xpub3':xpub3}) - self.add_account('m/', account) + def default_account(self): + return self.accounts["m/0'"] + + def is_watching_only(self): + return not bool(self.master_private_keys) + + def can_create_accounts(self): + return 'm/' in self.master_private_keys.keys() + + def get_master_public_key(self): + """xpub of the main account""" + return self.master_public_keys.get("m/0'") def get_master_public_keys(self): - xpub1 = self.master_public_keys.get("m/") - xpub2 = self.master_public_keys.get("cold/") - xpub3 = self.master_public_keys.get("remote/") - return {'hot':xpub1, 'cold':xpub2, 'remote':xpub3} + out = {} + for k, account in self.accounts.items(): + name = self.get_account_name(k) + mpk_text = '\n\n'.join( account.get_master_pubkeys() ) + out[name] = mpk_text + return out + def get_master_private_key(self, account, password): + k = self.master_private_keys.get(account) + if not k: return + xpriv = pw_decode( k, password) + return xpriv -class WalletSynchronizer(threading.Thread): + def check_password(self, password): + xpriv = self.get_master_private_key( "m/", password ) + xpub = self.master_public_keys["m/"] + assert deserialize_xkey(xpriv)[3] == deserialize_xkey(xpub)[3] + def create_xprv_wallet(self, xprv, password): + xpub = bitcoin.xpub_from_xprv(xprv) + account = BIP32_Account({'xpub':xpub}) + account_id = 'm/' + bitcoin.get_xkey_name(xpub) + self.storage.put('seed_version', self.seed_version, True) + self.add_master_private_key(account_id, xprv, password) + self.add_master_public_key(account_id, xpub) + self.add_account(account_id, account) - def __init__(self, wallet, network): - threading.Thread.__init__(self) - self.daemon = True - self.wallet = wallet - self.network = network - self.was_updated = True - self.running = False - self.lock = threading.Lock() - self.queue = Queue.Queue() + def create_watching_only_wallet(self, xpub): + account = BIP32_Account({'xpub':xpub}) + account_id = 'm/' + bitcoin.get_xkey_name(xpub) + self.storage.put('seed_version', self.seed_version, True) + self.add_master_public_key(account_id, xpub) + self.add_account(account_id, account) - def stop(self): - with self.lock: self.running = False + def create_accounts(self, password): + # First check the password is valid (this raises if it isn't). + if not self.is_watching_only(): + self.check_password(password) + self.create_account('Main account', password) - def is_running(self): - with self.lock: return self.running + def add_master_public_key(self, name, xpub): + self.master_public_keys[name] = xpub + self.storage.put('master_public_keys', self.master_public_keys, True) - - def subscribe_to_addresses(self, addresses): - messages = [] - for addr in addresses: - messages.append(('blockchain.address.subscribe', [addr])) - self.network.subscribe( messages, lambda i,r: self.queue.put(r)) + def add_master_private_key(self, name, xpriv, password): + self.master_private_keys[name] = pw_encode(xpriv, password) + self.storage.put('master_private_keys', self.master_private_keys, True) + def add_master_keys(self, root, account_id, password): + x = self.master_private_keys.get(root) + if x: + master_xpriv = pw_decode(x, password ) + xpriv, xpub = bip32_private_derivation(master_xpriv, root, account_id) + self.add_master_public_key(account_id, xpub) + self.add_master_private_key(account_id, xpriv, password) + else: + master_xpub = self.master_public_keys[root] + xpub = bip32_public_derivation(master_xpub, root, account_id) + self.add_master_public_key(account_id, xpub) + return xpub - def run(self): - with self.lock: - self.running = True + def create_master_keys(self, password): + xpriv, xpub = bip32_root(mnemonic_to_seed(self.get_seed(password),'').encode('hex')) + self.add_master_public_key("m/", xpub) + self.add_master_private_key("m/", xpriv, password) - while self.is_running(): + def find_root_by_master_key(self, xpub): + for key, xpub2 in self.master_public_keys.items(): + if key == "m/":continue + if xpub == xpub2: + return key - if not self.network.is_connected(): - self.network.wait_until_connected() - - self.run_interface() + def num_accounts(self): + keys = [] + for k, v in self.accounts.items(): + if type(v) != BIP32_Account: + continue + keys.append(k) + i = 0 + while True: + account_id = self.account_id(i) + if account_id not in keys: break + i += 1 + return i - def run_interface(self): + def next_account_address(self, password): + i = self.num_accounts() + account_id = self.account_id(i) - print_error("synchronizer: connected to", self.network.main_server()) + addr = self.next_addresses.get(account_id) + if not addr: + account = self.make_account(account_id, password) + addr = account.first_address() + self.next_addresses[account_id] = addr + self.storage.put('next_addresses', self.next_addresses) - requested_tx = [] - missing_tx = [] - requested_histories = {} + return account_id, addr - # 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) ) + def account_id(self, i): + return "m/%d'"%i - if missing_tx: - print_error("missing tx", missing_tx) + def make_account(self, account_id, password): + """Creates and saves the master keys, but does not save the account""" + xpub = self.add_master_keys("m/", account_id, password) + account = BIP32_Account({'xpub':xpub}) + return account - # subscriptions - self.subscribe_to_addresses(self.wallet.addresses(True)) + def make_seed(self): + import mnemonic, ecdsa + entropy = ecdsa.util.randrange( pow(2,160) ) + nonce = 0 + while True: + ss = "%040x"%(entropy+nonce) + s = hashlib.sha256(ss.decode('hex')).digest().encode('hex') + # we keep only 13 words, that's approximately 139 bits of entropy + words = mnemonic.mn_encode(s)[0:13] + seed = ' '.join(words) + if is_new_seed(seed): + break # this will remove 8 bits of entropy + nonce += 1 + return seed - while self.is_running(): - # 1. create new addresses - new_addresses = self.wallet.synchronize() + def prepare_seed(self, seed): + import unicodedata + return NEW_SEED_VERSION, unicodedata.normalize('NFC', unicode(seed.strip())) - # 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.network.send([ ('blockchain.transaction.get',[tx_hash, tx_height]) ], lambda i,r: self.queue.put(r)) - requested_tx.append( (tx_hash, tx_height) ) - missing_tx = [] +class Wallet_2of2(NewWallet): + """ This class is used for multisignature addresses""" - # detect if situation has changed - if self.network.is_up_to_date() and self.queue.empty(): - if not self.wallet.is_up_to_date(): - self.wallet.set_up_to_date(True) - self.was_updated = True - else: - if self.wallet.is_up_to_date(): - self.wallet.set_up_to_date(False) - self.was_updated = True + def __init__(self, storage): + NewWallet.__init__(self, storage) + self.storage.put('wallet_type', '2of2', True) - if self.was_updated: - self.network.trigger_callback('updated') - self.was_updated = False + def default_account(self): + return self.accounts['m/'] - # 2. get a response - try: - r = self.queue.get(block=True, timeout=1) - except Queue.Empty: - continue + def can_create_accounts(self): + return False - # see if it changed - #if interface != self.network.interface: - # break - - if not r: - continue + def can_import(self): + return False - # 3. handle response - method = r['method'] - params = r['params'] - result = r.get('result') - error = r.get('error') - if error: - print "error", r - continue + def create_account(self, name, password): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + account = BIP32_Account_2of2({'xpub':xpub1, 'xpub2':xpub2}) + self.add_account('m/', account) - 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.network.send([('blockchain.address.get_history', [addr])], lambda i,r:self.queue.put(r)) - 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 Exception("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 Exception("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)) + def get_master_public_keys(self): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + return {'hot':xpub1, 'cold':xpub2} - else: - print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result) ) + def get_action(self): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + if xpub1 is None: + return 'create_seed' + if xpub2 is None: + return 'add_cosigner' + if not self.accounts: + return 'create_accounts' + + +class Wallet_2of3(Wallet_2of2): + """ This class is used for multisignature addresses""" - if self.was_updated and not requested_tx: - self.network.trigger_callback('updated') - # Updated gets called too many times from other places as well; if we use that signal we get the notification three times - self.network.trigger_callback("new_transaction") - self.was_updated = False + def __init__(self, storage): + Wallet_2of2.__init__(self, storage) + self.storage.put('wallet_type', '2of3', True) + + def create_account(self, name, password): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + xpub3 = self.master_public_keys.get("remote/") + account = BIP32_Account_2of3({'xpub':xpub1, 'xpub2':xpub2, 'xpub3':xpub3}) + self.add_account('m/', account) + def get_master_public_keys(self): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + xpub3 = self.master_public_keys.get("remote/") + return {'hot':xpub1, 'cold':xpub2, 'remote':xpub3} + def get_action(self): + xpub1 = self.master_public_keys.get("m/") + xpub2 = self.master_public_keys.get("cold/") + xpub3 = self.master_public_keys.get("remote/") + if xpub1 is None: + return 'create_seed' + if xpub2 is None or xpub3 is None: + return 'add_two_cosigners' + if not self.accounts: + return 'create_accounts' -class OldWallet(NewWallet): +class OldWallet(Deterministic_Wallet): - def can_create_accounts(self): - return False + def default_account(self): + return self.accounts[0] def make_seed(self): import mnemonic @@ -1725,18 +1498,19 @@ class OldWallet(NewWallet): seed = mnemonic.mn_decode(words) if not seed: raise Exception("Invalid seed") - - return OLD_SEED_VERSION, seed + return OLD_SEED_VERSION, seed def create_master_keys(self, password): - seed = pw_decode(self.seed, password) + seed = self.get_seed(password) mpk = OldAccount.mpk_from_seed(seed) self.storage.put('master_public_key', mpk, True) + def get_master_public_key(self): + return self.storage.get("master_public_key") + def get_master_public_keys(self): - mpk = self.storage.get("master_public_key") - return {'Main Account':mpk} + return {'Main Account':self.get_master_public_key()} def create_accounts(self, password): mpk = self.storage.get("master_public_key") @@ -1753,80 +1527,42 @@ class OldWallet(NewWallet): self.create_account(mpk) def get_seed(self, password): - seed = pw_decode(self.seed, password) - self.accounts[0].check_seed(seed) + seed = pw_decode(self.seed, password).encode('utf8') return seed + def check_password(self, password): + seed = self.get_seed(password) + self.accounts[0].check_seed(seed) + def get_mnemonic(self, password): import mnemonic - s = pw_decode(self.seed, password) + s = self.get_seed(password) return ' '.join(mnemonic.mn_encode(s)) - - def add_keypairs_from_KeyID(self, tx, keypairs, password): - # first check the provided password - seed = self.get_seed(password) - for txin in tx.inputs: - keyid = txin.get('KeyID') - if keyid: - m = re.match("old\(([0-9a-f]+),(\d+),(\d+)", keyid) - if not m: continue - mpk = m.group(1) - if mpk != self.storage.get('master_public_key'): continue - for_change = int(m.group(2)) - num = int(m.group(3)) - account = self.accounts[0] - addr = account.get_address(for_change, num) - txin['address'] = addr # fixme: side effect - pk = account.get_private_key(seed, (for_change, num)) - pubkey = public_key_from_private_key(pk) - keypairs[pubkey] = pk - - - def get_account_name(self, k): - assert k == 0 - return 'Main account' - - def is_seeded(self, account): - return self.seed is not None - - def get_private_key(self, address, password): - if self.is_watching_only(): - return [] - - # first check the provided password - seed = self.get_seed(password) - - out = [] - if address in self.imported_keys.keys(): - out.append( pw_decode( self.imported_keys[address], password ) ) - else: - account_id, sequence = self.get_address_index(address) - pk = self.accounts[0].get_private_key(seed, sequence) - out.append(pk) - return out - def check_pending_accounts(self): pass # 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): config = storage.config - if config.get('bitkey', False): - # if user requested support for Bitkey device, - # import Bitkey driver - from wallet_bitkey import WalletBitkey - return WalletBitkey(config) - - if storage.get('wallet_type') == '2of2': - return Wallet_2of2(storage) - if storage.get('wallet_type') == '2of3': - return Wallet_2of3(storage) + self.wallet_types = [ + ('standard', ("Standard wallet"), NewWallet if config.get('bip32') else OldWallet), + ('imported', ("Imported wallet"), Imported_Wallet), + ('2of2', ("Multisig wallet (2 of 2)"), Wallet_2of2), + ('2of3', ("Multisig wallet (2 of 3)"), Wallet_2of3) + ] + run_hook('add_wallet_types', self.wallet_types) + for t, l, WalletClass in self.wallet_types: + if t == storage.get('wallet_type'): + return WalletClass(storage) if not storage.file_exists: seed_version = NEW_SEED_VERSION if config.get('bip32') is True else OLD_SEED_VERSION @@ -1846,8 +1582,6 @@ class Wallet(object): print msg sys.exit(1) - - @classmethod def is_seed(self, seed): if not seed: @@ -1856,26 +1590,53 @@ class Wallet(object): return True elif is_new_seed(seed): return True - else: + else: return False @classmethod - def is_mpk(self, mpk): + def is_old_mpk(self, mpk): try: int(mpk, 16) - old = True + assert len(mpk) == 128 + return True except: - old = False - - if old: - return len(mpk) == 128 - else: - try: - deserialize_xkey(mpk) - return True - except: + return False + + @classmethod + def is_xpub(self, text): + try: + assert text[0:4] == 'xpub' + deserialize_xkey(text) + return True + except: + return False + + @classmethod + def is_xprv(self, text): + try: + assert text[0:4] == 'xprv' + deserialize_xkey(text) + return True + except: + return False + + @classmethod + def is_address(self, text): + if not text: + return False + for x in text.split(): + if not bitcoin.is_address(x): return False - + return True + + @classmethod + def is_private_key(self, text): + if not text: + return False + for x in text.split(): + if not bitcoin.is_private_key(x): + return False + return True @classmethod def from_seed(self, seed, storage): @@ -1887,20 +1648,35 @@ class Wallet(object): return w @classmethod - def from_mpk(self, mpk, storage): + def from_address(self, text, storage): + w = Imported_Wallet(storage) + for x in text.split(): + w.accounts[IMPORTED_ACCOUNT].add(x, None, None, None) + w.save_accounts() + return w - try: - int(mpk, 16) - old = True - except: - old = False + @classmethod + def from_private_key(self, text, storage): + w = Imported_Wallet(storage) + for x in text.split(): + w.import_key(x, None) + return w - if old: - w = OldWallet(storage) - w.seed = '' - w.create_watching_only_wallet(mpk) - else: - w = NewWallet(storage) - w.create_watching_only_wallet(mpk) + @classmethod + def from_old_mpk(self, mpk, storage): + w = OldWallet(storage) + w.seed = '' + w.create_watching_only_wallet(mpk) + return w + + @classmethod + def from_xpub(self, xpub, storage): + w = NewWallet(storage) + w.create_watching_only_wallet(xpub) + return w + @classmethod + def from_xprv(self, xprv, password, storage): + w = NewWallet(storage) + w.create_xprv_wallet(xprv, password) return w