3 # Electrum - lightweight Bitcoin client
4 # Copyright (C) 2011 thomasv@gitorious
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
28 from util import print_msg, print_error
34 from transaction import Transaction
35 from plugins import run_hook
37 from synchronizer import WalletSynchronizer
39 COINBASE_MATURITY = 100
42 # internal ID for imported account
43 IMPORTED_ACCOUNT = '/x'
49 def __init__(self, config):
50 self.lock = threading.Lock()
53 self.file_exists = False
54 self.path = self.init_path(config)
55 print_error( "wallet path", self.path )
60 def init_path(self, config):
61 """Set the path of the wallet."""
63 # command line -w option
64 path = config.get('wallet_path')
69 path = config.get('default_wallet_path')
74 dirpath = os.path.join(config.path, "wallets")
75 if not os.path.exists(dirpath):
78 new_path = os.path.join(config.path, "wallets", "default_wallet")
80 # default path in pre 1.9 versions
81 old_path = os.path.join(config.path, "electrum.dat")
82 if os.path.exists(old_path) and not os.path.exists(new_path):
83 os.rename(old_path, new_path)
89 """Read the contents of the wallet file."""
91 with open(self.path, "r") as f:
96 d = ast.literal_eval( data ) #parse raw data from reading wallet file
98 raise IOError("Cannot read wallet file.")
101 self.file_exists = True
104 def get(self, key, default=None):
105 v = self.data.get(key)
110 def put(self, key, value, save = True):
113 if value is not None:
114 self.data[key] = value
115 elif key in self.data:
122 f = open(self.path,"w")
125 if 'ANDROID_DATA' not in os.environ:
127 os.chmod(self.path,stat.S_IREAD | stat.S_IWRITE)
130 class Abstract_Wallet:
132 Wallet classes are created to handle various address generation methods.
133 Completion states (watching-only, single account, no seed, etc) are handled inside classes.
136 def __init__(self, storage):
137 self.storage = storage
138 self.electrum_version = ELECTRUM_VERSION
139 self.gap_limit_for_change = 3 # constant
141 self.seed_version = storage.get('seed_version', NEW_SEED_VERSION)
142 self.gap_limit = storage.get('gap_limit', 5)
143 self.use_change = storage.get('use_change',True)
144 self.use_encryption = storage.get('use_encryption', False)
145 self.seed = storage.get('seed', '') # encrypted
146 self.labels = storage.get('labels', {})
147 self.frozen_addresses = storage.get('frozen_addresses',[])
148 self.addressbook = storage.get('contacts', [])
150 self.history = storage.get('addr_history',{}) # address -> list(txid, height)
152 self.fee = int(storage.get('fee_per_kb', 10000))
154 self.master_public_keys = storage.get('master_public_keys',{})
155 self.master_private_keys = storage.get('master_private_keys', {})
157 self.next_addresses = storage.get('next_addresses',{})
160 # This attribute is set when wallet.start_threads is called.
161 self.synchronizer = None
165 self.transactions = {}
166 tx_list = self.storage.get('transactions',{})
167 for k, raw in tx_list.items():
169 tx = Transaction.deserialize(raw)
171 print_msg("Warning: Cannot deserialize transactions. skipping")
174 self.add_pubkey_addresses(tx)
175 self.transactions[k] = tx
177 for h,tx in self.transactions.items():
178 if not self.check_new_tx(h, tx):
179 print_error("removing unreferenced tx", h)
180 self.transactions.pop(h)
185 self.prevout_values = {} # my own transaction outputs
186 self.spent_outputs = []
191 # there is a difference between wallet.up_to_date and interface.is_up_to_date()
192 # interface.is_up_to_date() returns true when all requests have been answered and processed
193 # wallet.up_to_date is true when the wallet is synchronized (stronger requirement)
195 self.up_to_date = False
196 self.lock = threading.Lock()
197 self.transaction_lock = threading.Lock()
198 self.tx_event = threading.Event()
199 for tx_hash, tx in self.transactions.items():
200 self.update_tx_outputs(tx_hash)
202 def add_pubkey_addresses(self, tx):
203 # find the address corresponding to pay-to-pubkey inputs
207 tx.add_pubkey_addresses(self.transactions)
209 # outputs of tx: inputs of tx2
210 for x, v in tx.outputs:
211 if x.startswith('pubkey:'):
212 for tx2 in self.transactions.values():
213 tx2.add_pubkey_addresses({h:tx})
215 def get_action(self):
218 def convert_imported_keys(self, password):
219 for k, v in self.imported_keys.items():
220 sec = pw_decode(v, password)
221 pubkey = public_key_from_private_key(sec)
222 address = public_key_to_bc_address(pubkey.decode('hex'))
224 self.import_key(sec, password)
225 self.imported_keys.pop(k)
226 self.storage.put('imported_keys', self.imported_keys)
228 def load_accounts(self):
230 self.imported_keys = self.storage.get('imported_keys',{})
232 d = self.storage.get('accounts', {})
233 for k, v in d.items():
235 v['mpk'] = self.storage.get('master_public_key')
236 self.accounts[k] = OldAccount(v)
237 elif v.get('imported'):
238 self.accounts[k] = ImportedAccount(v)
240 self.accounts[k] = BIP32_Account_2of3(v)
242 self.accounts[k] = BIP32_Account_2of2(v)
244 self.accounts[k] = BIP32_Account(v)
245 elif v.get('pending'):
246 self.accounts[k] = PendingAccount(v)
248 print_error("cannot load account", v)
250 def synchronize(self):
253 def can_create_accounts(self):
256 def set_up_to_date(self,b):
257 with self.lock: self.up_to_date = b
259 def is_up_to_date(self):
260 with self.lock: return self.up_to_date
263 self.up_to_date = False
264 while not self.is_up_to_date():
267 def is_imported(self, addr):
268 account = self.accounts.get(IMPORTED_ACCOUNT)
270 return addr in account.get_addresses(0)
274 def has_imported_keys(self):
275 account = self.accounts.get(IMPORTED_ACCOUNT)
276 return account is not None
278 def import_key(self, sec, password):
280 pubkey = public_key_from_private_key(sec)
281 address = public_key_to_bc_address(pubkey.decode('hex'))
283 raise Exception('Invalid private key')
285 if self.is_mine(address):
286 raise Exception('Address already in wallet')
288 if self.accounts.get(IMPORTED_ACCOUNT) is None:
289 self.accounts[IMPORTED_ACCOUNT] = ImportedAccount({'imported':{}})
290 self.accounts[IMPORTED_ACCOUNT].add(address, pubkey, sec, password)
293 if self.synchronizer:
294 self.synchronizer.subscribe_to_addresses([address])
297 def delete_imported_key(self, addr):
298 account = self.accounts[IMPORTED_ACCOUNT]
300 if not account.get_addresses(0):
301 self.accounts.pop(IMPORTED_ACCOUNT)
304 def set_label(self, name, text = None):
306 old_text = self.labels.get(name)
309 self.labels[name] = text
313 self.labels.pop(name)
317 self.storage.put('labels', self.labels, True)
319 run_hook('set_label', name, text, changed)
322 def addresses(self, include_change = True, _next=True):
324 for a in self.accounts.keys():
325 o += self.get_account_addresses(a, include_change)
328 for addr in self.next_addresses.values():
333 def is_mine(self, address):
334 return address in self.addresses(True)
336 def is_change(self, address):
337 if not self.is_mine(address): return False
338 acct, s = self.get_address_index(address)
339 if s is None: return False
342 def get_address_index(self, address):
344 for account in self.accounts.keys():
345 for for_change in [0,1]:
346 addresses = self.accounts[account].get_addresses(for_change)
347 for addr in addresses:
349 return account, (for_change, addresses.index(addr))
351 for k,v in self.next_addresses.items():
355 raise Exception("Address not found", address)
357 def get_private_key(self, address, password):
358 if self.is_watching_only():
360 account_id, sequence = self.get_address_index(address)
361 return self.accounts[account_id].get_private_key(sequence, self, password)
363 def get_public_keys(self, address):
364 account_id, sequence = self.get_address_index(address)
365 return self.accounts[account_id].get_pubkeys(sequence)
367 def can_sign(self, tx):
369 if self.is_watching_only():
375 addr_list, xpub_list = tx.inputs_to_sign()
376 for addr in addr_list:
377 if self.is_mine(addr):
380 mpk = [ self.master_public_keys[k] for k in self.master_private_keys.keys() ]
381 for xpub, sequence in xpub_list:
387 def add_keypairs(self, tx, keypairs, password):
388 # first check the provided password. This will raise if invalid.
389 self.check_password(password)
391 addr_list, xpub_list = tx.inputs_to_sign()
392 for addr in addr_list:
393 if self.is_mine(addr):
394 private_keys = self.get_private_key(addr, password)
395 for sec in private_keys:
396 pubkey = public_key_from_private_key(sec)
397 keypairs[ pubkey ] = sec
399 for xpub, sequence in xpub_list:
400 # look for account that can sign
401 for k, account in self.accounts.items():
402 if xpub in account.get_master_pubkeys():
406 pk = account.get_private_key(sequence, self, password)
408 pubkey = public_key_from_private_key(sec)
409 keypairs[pubkey] = sec
411 def signrawtransaction(self, tx, private_keys, password):
412 # check that the password is correct. This will raise if it's not.
413 self.get_seed(password)
415 # build a list of public/private keys
418 # add private keys from parameter
419 for sec in private_keys:
420 pubkey = public_key_from_private_key(sec)
421 keypairs[ pubkey ] = sec
424 self.add_keypairs(tx, keypairs, password)
426 # sign the transaction
427 self.sign_transaction(tx, keypairs, password)
429 def sign_message(self, address, message, password):
430 keys = self.get_private_key(address, password)
431 assert len(keys) == 1
433 key = regenerate_key(sec)
434 compressed = is_compressed(sec)
435 return key.sign_message(message, compressed, address)
437 def decrypt_message(self, pubkey, message, password):
438 address = public_key_to_bc_address(pubkey.decode('hex'))
439 keys = self.get_private_key(address, password)
441 ec = regenerate_key(secret)
442 decrypted = ec.decrypt_message(message)
446 return self.history.values() != [[]] * len(self.history)
448 def add_contact(self, address, label=None):
449 self.addressbook.append(address)
450 self.storage.put('contacts', self.addressbook, True)
452 self.set_label(address, label)
454 def delete_contact(self, addr):
455 if addr in self.addressbook:
456 self.addressbook.remove(addr)
457 self.storage.put('addressbook', self.addressbook, True)
459 def fill_addressbook(self):
460 for tx_hash, tx in self.transactions.items():
461 is_relevant, is_send, _, _ = self.get_tx_value(tx)
463 for addr in tx.get_output_addresses():
464 if not self.is_mine(addr) and addr not in self.addressbook:
465 self.addressbook.append(addr)
467 # self.update_tx_labels()
469 def get_num_tx(self, address):
471 for tx in self.transactions.values():
472 if address in tx.get_output_addresses(): n += 1
475 def get_address_flags(self, addr):
476 flags = "C" if self.is_change(addr) else "I" if addr in self.imported_keys.keys() else "-"
477 flags += "F" if addr in self.frozen_addresses else "-"
480 def get_tx_value(self, tx, account=None):
481 domain = self.get_account_addresses(account)
482 return tx.get_value(domain, self.prevout_values)
484 def update_tx_outputs(self, tx_hash):
485 tx = self.transactions.get(tx_hash)
487 for i, (addr, value) in enumerate(tx.get_outputs()):
488 key = tx_hash+ ':%d'%i
489 self.prevout_values[key] = value
491 for item in tx.inputs:
492 if self.is_mine(item.get('address')):
493 key = item['prevout_hash'] + ':%d'%item['prevout_n']
494 self.spent_outputs.append(key)
496 def get_addr_balance(self, address):
497 #assert self.is_mine(address)
498 h = self.history.get(address,[])
499 if h == ['*']: return 0,0
501 received_coins = [] # list of coins received at address
503 for tx_hash, tx_height in h:
504 tx = self.transactions.get(tx_hash)
507 for i, (addr, value) in enumerate(tx.get_outputs()):
509 key = tx_hash + ':%d'%i
510 received_coins.append(key)
512 for tx_hash, tx_height in h:
513 tx = self.transactions.get(tx_hash)
517 for item in tx.inputs:
518 addr = item.get('address')
520 key = item['prevout_hash'] + ':%d'%item['prevout_n']
521 value = self.prevout_values.get( key )
522 if key in received_coins:
525 for i, (addr, value) in enumerate(tx.get_outputs()):
526 key = tx_hash + ':%d'%i
536 def get_account_name(self, k):
537 return self.labels.get(k, self.accounts[k].get_name(k))
539 def get_account_names(self):
541 for k in self.accounts.keys():
542 account_names[k] = self.get_account_name(k)
545 def get_account_addresses(self, a, include_change=True):
547 o = self.addresses(include_change)
548 elif a in self.accounts:
549 ac = self.accounts[a]
550 o = ac.get_addresses(0)
551 if include_change: o += ac.get_addresses(1)
554 def get_account_balance(self, account):
555 return self.get_balance(self.get_account_addresses(account))
557 def get_frozen_balance(self):
558 return self.get_balance(self.frozen_addresses)
560 def get_balance(self, domain=None):
561 if domain is None: domain = self.addresses(True)
564 c, u = self.get_addr_balance(addr)
569 def get_unspent_coins(self, domain=None):
571 if domain is None: domain = self.addresses(True)
573 h = self.history.get(addr, [])
574 if h == ['*']: continue
575 for tx_hash, tx_height in h:
576 tx = self.transactions.get(tx_hash)
577 if tx is None: raise Exception("Wallet not synchronized")
578 is_coinbase = tx.inputs[0].get('prevout_hash') == '0'*64
579 for i, (address, value) in enumerate(tx.get_outputs()):
580 output = {'address':address, 'value':value, 'prevout_n':i}
581 if address != addr: continue
582 key = tx_hash + ":%d"%i
583 if key in self.spent_outputs: continue
584 output['prevout_hash'] = tx_hash
585 output['height'] = tx_height
586 output['coinbase'] = is_coinbase
587 coins.append((tx_height, output))
591 coins = sorted(coins)
592 if coins[-1][0] != 0:
593 while coins[0][0] == 0:
594 coins = coins[1:] + [ coins[0] ]
595 return [x[1] for x in coins]
597 def choose_tx_inputs( self, amount, fixed_fee, num_outputs, domain = None, coins = None ):
598 """ todo: minimize tx size """
600 fee = self.fee if fixed_fee is None else fixed_fee
604 domain = self.addresses(True)
605 for i in self.frozen_addresses:
606 if i in domain: domain.remove(i)
607 coins = self.get_unspent_coins(domain)
612 if item.get('coinbase') and item.get('height') + COINBASE_MATURITY > self.network.get_local_height():
614 v = item.get('value')
617 fee = self.estimated_fee(inputs, num_outputs) if fixed_fee is None else fixed_fee
618 if total >= amount + fee: break
622 return inputs, total, fee
624 def set_fee(self, fee):
627 self.storage.put('fee_per_kb', self.fee, True)
629 def estimated_fee(self, inputs, num_outputs):
630 estimated_size = len(inputs) * 180 + num_outputs * 34 # this assumes non-compressed keys
631 fee = self.fee * int(math.ceil(estimated_size/1000.))
634 def add_tx_change( self, inputs, outputs, amount, fee, total, change_addr=None):
635 "add change to a transaction"
636 change_amount = total - ( amount + fee )
637 if change_amount > DUST_THRESHOLD:
640 # send change to one of the accounts involved in the tx
641 address = inputs[0].get('address')
642 account, _ = self.get_address_index(address)
644 if not self.use_change or account == IMPORTED_ACCOUNT:
645 change_addr = inputs[-1]['address']
647 change_addr = self.accounts[account].get_addresses(1)[-self.gap_limit_for_change]
649 # Insert the change output at a random position in the outputs
650 posn = random.randint(0, len(outputs))
651 outputs[posn:posn] = [( change_addr, change_amount)]
654 def get_history(self, address):
656 return self.history.get(address)
658 def get_status(self, h):
659 if not h: return None
660 if h == ['*']: return '*'
662 for tx_hash, height in h:
663 status += tx_hash + ':%d:' % height
664 return hashlib.sha256( status ).digest().encode('hex')
666 def receive_tx_callback(self, tx_hash, tx, tx_height):
668 with self.transaction_lock:
669 self.add_pubkey_addresses(tx)
670 if not self.check_new_tx(tx_hash, tx):
671 # may happen due to pruning
672 print_error("received transaction that is no longer referenced in history", tx_hash)
674 self.transactions[tx_hash] = tx
675 self.network.pending_transactions_for_notifications.append(tx)
676 self.save_transactions()
677 if self.verifier and tx_height>0:
678 self.verifier.add(tx_hash, tx_height)
679 self.update_tx_outputs(tx_hash)
681 def save_transactions(self):
683 for k,v in self.transactions.items():
685 self.storage.put('transactions', tx, True)
687 def receive_history_callback(self, addr, hist):
689 if not self.check_new_history(addr, hist):
690 raise Exception("error: received history for %s is not consistent with known transactions"%addr)
693 self.history[addr] = hist
694 self.storage.put('addr_history', self.history, True)
697 for tx_hash, tx_height in hist:
699 # add it in case it was previously unconfirmed
700 if self.verifier: self.verifier.add(tx_hash, tx_height)
702 def get_tx_history(self, account=None):
703 if not self.verifier:
706 with self.transaction_lock:
707 history = self.transactions.items()
708 history.sort(key = lambda x: self.verifier.get_txpos(x[0]))
712 for tx_hash, tx in history:
713 is_relevant, is_mine, v, fee = self.get_tx_value(tx, account)
714 if v is not None: balance += v
716 c, u = self.get_account_balance(account)
719 result.append( ('', 1000, 0, c+u-balance, None, c+u-balance, None ) )
721 balance = c + u - balance
722 for tx_hash, tx in history:
723 is_relevant, is_mine, value, fee = self.get_tx_value(tx, account)
726 if value is not None:
729 conf, timestamp = self.verifier.get_confirmations(tx_hash) if self.verifier else (None, None)
730 result.append( (tx_hash, conf, is_mine, value, fee, balance, timestamp) )
734 def get_label(self, tx_hash):
735 label = self.labels.get(tx_hash)
736 is_default = (label == '') or (label is None)
737 if is_default: label = self.get_default_label(tx_hash)
738 return label, is_default
740 def get_default_label(self, tx_hash):
741 tx = self.transactions.get(tx_hash)
744 is_relevant, is_mine, _, _ = self.get_tx_value(tx)
746 for o_addr in tx.get_output_addresses():
747 if not self.is_mine(o_addr):
749 default_label = self.labels[o_addr]
751 default_label = '>' + o_addr
754 default_label = '(internal)'
756 for o_addr in tx.get_output_addresses():
757 if self.is_mine(o_addr) and not self.is_change(o_addr):
760 for o_addr in tx.get_output_addresses():
761 if self.is_mine(o_addr):
768 default_label = self.labels[o_addr]
770 default_label = '<' + o_addr
774 def make_unsigned_transaction(self, outputs, fee=None, change_addr=None, domain=None, coins=None ):
775 for address, x in outputs:
776 if address.startswith('OP_RETURN:'):
778 assert is_address(address), "Address " + address + " is invalid!"
779 amount = sum( map(lambda x:x[1], outputs) )
780 inputs, total, fee = self.choose_tx_inputs( amount, fee, len(outputs), domain, coins )
782 raise ValueError("Not enough funds")
784 self.add_input_info(txin)
785 outputs = self.add_tx_change(inputs, outputs, amount, fee, total, change_addr)
786 return Transaction(inputs, outputs)
788 def mktx(self, outputs, password, fee=None, change_addr=None, domain= None, coins = None ):
789 tx = self.make_unsigned_transaction(outputs, fee, change_addr, domain, coins)
791 self.add_keypairs(tx, keypairs, password)
793 self.sign_transaction(tx, keypairs, password)
796 def add_input_info(self, txin):
797 address = txin['address']
798 account_id, sequence = self.get_address_index(address)
799 account = self.accounts[account_id]
800 redeemScript = account.redeem_script(*sequence)
801 pubkeys = account.get_pubkeys(*sequence)
802 x_pubkeys = account.get_xpubkeys(*sequence)
803 # sort pubkeys and x_pubkeys, using the order of pubkeys
804 pubkeys, x_pubkeys = zip( *sorted(zip(pubkeys, x_pubkeys)))
805 txin['pubkeys'] = list(pubkeys)
806 txin['x_pubkeys'] = list(x_pubkeys)
807 txin['signatures'] = [None] * len(pubkeys)
810 txin['redeemScript'] = redeemScript
813 txin['redeemPubkey'] = account.get_pubkey(*sequence)
816 def sign_transaction(self, tx, keypairs, password):
818 run_hook('sign_transaction', tx, password)
820 def sendtx(self, tx):
824 return self.receive_tx(h, tx)
826 def send_tx(self, tx):
828 self.tx_event.clear()
829 self.network.send([('blockchain.transaction.broadcast', [str(tx)])], self.on_broadcast)
832 def on_broadcast(self, i, r):
833 self.tx_result = r.get('result')
836 def receive_tx(self, tx_hash, tx):
839 return False, "error: " + out
840 run_hook('receive_tx', tx, self)
843 def update_password(self, old_password, new_password):
844 if new_password == '':
848 decoded = self.get_seed(old_password)
849 self.seed = pw_encode( decoded, new_password)
850 self.storage.put('seed', self.seed, True)
852 imported_account = self.accounts.get(IMPORTED_ACCOUNT)
854 imported_account.update_password(old_password, new_password)
857 for k, v in self.master_private_keys.items():
858 b = pw_decode(v, old_password)
859 c = pw_encode(b, new_password)
860 self.master_private_keys[k] = c
861 self.storage.put('master_private_keys', self.master_private_keys, True)
863 self.use_encryption = (new_password != None)
864 self.storage.put('use_encryption', self.use_encryption,True)
866 def freeze(self,addr):
867 if self.is_mine(addr) and addr not in self.frozen_addresses:
868 self.frozen_addresses.append(addr)
869 self.storage.put('frozen_addresses', self.frozen_addresses, True)
874 def unfreeze(self,addr):
875 if self.is_mine(addr) and addr in self.frozen_addresses:
876 self.frozen_addresses.remove(addr)
877 self.storage.put('frozen_addresses', self.frozen_addresses, True)
882 def set_verifier(self, verifier):
883 self.verifier = verifier
885 # review transactions that are in the history
886 for addr, hist in self.history.items():
887 if hist == ['*']: continue
888 for tx_hash, tx_height in hist:
890 # add it in case it was previously unconfirmed
891 self.verifier.add(tx_hash, tx_height)
893 # if we are on a pruning server, remove unverified transactions
894 vr = self.verifier.transactions.keys() + self.verifier.verified_tx.keys()
895 for tx_hash in self.transactions.keys():
896 if tx_hash not in vr:
897 self.transactions.pop(tx_hash)
899 def check_new_history(self, addr, hist):
900 # check that all tx in hist are relevant
902 for tx_hash, height in hist:
903 tx = self.transactions.get(tx_hash)
905 if not tx.has_address(addr):
908 # check that we are not "orphaning" a transaction
909 old_hist = self.history.get(addr,[])
910 if old_hist == ['*']: return True
912 for tx_hash, height in old_hist:
913 if tx_hash in map(lambda x:x[0], hist): continue
915 for _addr, _hist in self.history.items():
916 if _addr == addr: continue
917 if _hist == ['*']: continue
918 _tx_hist = map(lambda x:x[0], _hist)
919 if tx_hash in _tx_hist:
924 tx = self.transactions.get(tx_hash)
925 # tx might not be there
929 if self.verifier.get_height(tx_hash):
932 print_error("new history is orphaning transaction:", tx_hash)
933 # check that all outputs are not mine, request histories
935 for _addr in tx.get_output_addresses():
936 # assert not self.is_mine(_addr)
937 ext_requests.append( ('blockchain.address.get_history', [_addr]) )
939 ext_h = self.network.synchronous_get(ext_requests)
940 print_error("sync:", ext_requests, ext_h)
943 if h == ['*']: continue
945 if item.get('tx_hash') == tx_hash:
946 height = item.get('height')
948 print_error("found height for", tx_hash, height)
949 self.verifier.add(tx_hash, height)
951 print_error("removing orphaned tx from history", tx_hash)
952 self.transactions.pop(tx_hash)
956 def check_new_tx(self, tx_hash, tx):
957 # 1 check that tx is referenced in addr_history.
959 for addr, hist in self.history.items():
960 if hist == ['*']:continue
961 for txh, height in hist:
963 addresses.append(addr)
968 # 2 check that referencing addresses are in the tx
969 for addr in addresses:
970 if not tx.has_address(addr):
975 def start_threads(self, network):
976 from verifier import TxVerifier
977 self.network = network
978 if self.network is not None:
979 self.verifier = TxVerifier(self.network, self.storage)
980 self.verifier.start()
981 self.set_verifier(self.verifier)
982 self.synchronizer = WalletSynchronizer(self, network)
983 self.synchronizer.start()
986 self.synchronizer =None
988 def stop_threads(self):
991 self.synchronizer.stop()
993 def restore(self, cb):
996 def get_accounts(self):
999 def save_accounts(self):
1001 for k, v in self.accounts.items():
1003 self.storage.put('accounts', d, True)
1005 def can_import(self):
1006 return not self.is_watching_only()
1008 def is_used(self, address):
1009 h = self.history.get(address,[])
1010 c, u = self.get_addr_balance(address)
1011 return len(h), len(h) > 0 and c == -u
1013 def address_is_old(self, address, age_limit=2):
1015 h = self.history.get(address, [])
1018 for tx_hash, tx_height in h:
1022 tx_age = self.network.get_local_height() - tx_height + 1
1025 return age > age_limit
1028 class Imported_Wallet(Abstract_Wallet):
1030 def __init__(self, storage):
1031 Abstract_Wallet.__init__(self, storage)
1032 a = self.accounts.get(IMPORTED_ACCOUNT)
1034 self.accounts[IMPORTED_ACCOUNT] = ImportedAccount({'imported':{}})
1035 self.storage.put('wallet_type', 'imported', True)
1037 def is_watching_only(self):
1038 acc = self.accounts[IMPORTED_ACCOUNT]
1039 n = acc.keypairs.values()
1040 return n == [(None, None)] * len(n)
1045 def is_deterministic(self):
1048 def check_password(self, password):
1049 self.accounts[IMPORTED_ACCOUNT].get_private_key((0,0), self, password)
1051 def is_used(self, address):
1052 h = self.history.get(address,[])
1053 return len(h), False
1055 def get_master_public_keys(self):
1058 def is_beyond_limit(self, address, account, is_change):
1061 class Deterministic_Wallet(Abstract_Wallet):
1063 def __init__(self, storage):
1064 Abstract_Wallet.__init__(self, storage)
1067 return self.seed != ''
1069 def is_deterministic(self):
1072 def is_watching_only(self):
1073 return not self.has_seed()
1075 def add_seed(self, seed, password):
1077 raise Exception("a seed exists")
1079 self.seed_version, self.seed = self.prepare_seed(seed)
1081 self.seed = pw_encode( self.seed, password)
1082 self.use_encryption = True
1084 self.use_encryption = False
1086 self.storage.put('seed', self.seed, True)
1087 self.storage.put('seed_version', self.seed_version, True)
1088 self.storage.put('use_encryption', self.use_encryption,True)
1089 self.create_master_keys(password)
1091 def get_seed(self, password):
1092 return pw_decode(self.seed, password)
1094 def get_mnemonic(self, password):
1095 return self.get_seed(password)
1097 def change_gap_limit(self, value):
1098 if value >= self.gap_limit:
1099 self.gap_limit = value
1100 self.storage.put('gap_limit', self.gap_limit, True)
1101 #self.interface.poke('synchronizer')
1104 elif value >= self.min_acceptable_gap():
1105 for key, account in self.accounts.items():
1106 addresses = account[0]
1107 k = self.num_unused_trailing_addresses(addresses)
1108 n = len(addresses) - k + value
1109 addresses = addresses[0:n]
1110 self.accounts[key][0] = addresses
1112 self.gap_limit = value
1113 self.storage.put('gap_limit', self.gap_limit, True)
1114 self.save_accounts()
1119 def num_unused_trailing_addresses(self, addresses):
1121 for a in addresses[::-1]:
1122 if self.history.get(a):break
1126 def min_acceptable_gap(self):
1127 # fixme: this assumes wallet is synchronized
1131 for account in self.accounts.values():
1132 addresses = account.get_addresses(0)
1133 k = self.num_unused_trailing_addresses(addresses)
1134 for a in addresses[0:-k]:
1135 if self.history.get(a):
1139 if n > nmax: nmax = n
1142 def create_new_address(self, account=None, for_change=0):
1144 account = self.default_account()
1145 address = account.create_new_address(for_change)
1146 self.history[address] = []
1147 if self.synchronizer:
1148 self.synchronizer.add(address)
1149 self.save_accounts()
1152 def synchronize_sequence(self, account, for_change):
1153 limit = self.gap_limit_for_change if for_change else self.gap_limit
1155 addresses = account.get_addresses(for_change)
1156 if len(addresses) < limit:
1157 self.create_new_address(account, for_change)
1159 if map( lambda a: self.address_is_old(a), addresses[-limit:] ) == limit*[False]:
1162 self.create_new_address(account, for_change)
1164 def check_pending_accounts(self):
1165 for account_id, addr in self.next_addresses.items():
1166 if self.address_is_old(addr):
1167 print_error( "creating account", account_id )
1168 xpub = self.master_public_keys[account_id]
1169 account = BIP32_Account({'xpub':xpub})
1170 self.add_account(account_id, account)
1171 self.next_addresses.pop(account_id)
1173 def synchronize_account(self, account):
1174 self.synchronize_sequence(account, 0)
1175 self.synchronize_sequence(account, 1)
1177 def synchronize(self):
1178 self.check_pending_accounts()
1179 for account in self.accounts.values():
1180 if type(account) in [ImportedAccount, PendingAccount]:
1182 self.synchronize_account(account)
1184 def restore(self, callback):
1186 def wait_for_wallet():
1187 self.set_up_to_date(False)
1188 while not self.is_up_to_date():
1189 msg = "%s\n%s %d\n%s %.1f"%(
1190 _("Please wait..."),
1191 _("Addresses generated:"),
1192 len(self.addresses(True)),
1193 _("Kilobytes received:"),
1194 self.network.interface.bytes_received/1024.)
1196 apply(callback, (msg,))
1199 def wait_for_network():
1200 while not self.network.is_connected():
1201 msg = "%s \n" % (_("Connecting..."))
1202 apply(callback, (msg,))
1205 # wait until we are connected, because the user might have selected another server
1211 self.fill_addressbook()
1213 def create_account(self, name, password):
1214 i = self.num_accounts()
1215 account_id = self.account_id(i)
1216 account = self.make_account(account_id, password)
1217 self.add_account(account_id, account)
1219 self.set_label(account_id, name)
1221 # add address of the next account
1222 _, _ = self.next_account_address(password)
1225 def add_account(self, account_id, account):
1226 self.accounts[account_id] = account
1227 self.save_accounts()
1229 def account_is_pending(self, k):
1230 return type(self.accounts.get(k)) == PendingAccount
1232 def delete_pending_account(self, k):
1233 assert self.account_is_pending(k)
1234 self.accounts.pop(k)
1235 self.save_accounts()
1237 def create_pending_account(self, name, password):
1238 account_id, addr = self.next_account_address(password)
1239 self.set_label(account_id, name)
1240 self.accounts[account_id] = PendingAccount({'pending':addr})
1241 self.save_accounts()
1243 def is_beyond_limit(self, address, account, is_change):
1244 if type(account) == ImportedAccount:
1246 addr_list = account.get_addresses(is_change)
1247 i = addr_list.index(address)
1248 prev_addresses = addr_list[:max(0, i)]
1249 limit = self.gap_limit_for_change if is_change else self.gap_limit
1250 if len(prev_addresses) < limit:
1252 prev_addresses = prev_addresses[max(0, i - limit):]
1253 for addr in prev_addresses:
1254 if self.address_is_old(addr):
1258 def get_action(self):
1259 if not self.master_public_keys:
1260 return 'create_seed'
1261 if not self.accounts:
1262 return 'create_accounts'
1265 class NewWallet(Deterministic_Wallet):
1267 def __init__(self, storage):
1268 Deterministic_Wallet.__init__(self, storage)
1270 def default_account(self):
1271 return self.accounts["m/0'"]
1273 def is_watching_only(self):
1274 return not bool(self.master_private_keys)
1276 def can_create_accounts(self):
1277 return 'm/' in self.master_private_keys.keys()
1279 def get_master_public_key(self):
1280 """xpub of the main account"""
1281 return self.master_public_keys.get("m/0'")
1283 def get_master_public_keys(self):
1285 for k, account in self.accounts.items():
1286 name = self.get_account_name(k)
1287 mpk_text = '\n\n'.join( account.get_master_pubkeys() )
1288 out[name] = mpk_text
1291 def get_master_private_key(self, account, password):
1292 k = self.master_private_keys.get(account)
1294 xpriv = pw_decode( k, password)
1297 def check_password(self, password):
1298 xpriv = self.get_master_private_key( "m/", password )
1299 xpub = self.master_public_keys["m/"]
1300 assert deserialize_xkey(xpriv)[3] == deserialize_xkey(xpub)[3]
1302 def create_xprv_wallet(self, xprv, password):
1303 xpub = bitcoin.xpub_from_xprv(xprv)
1304 account = BIP32_Account({'xpub':xpub})
1305 account_id = 'm/' + bitcoin.get_xkey_name(xpub)
1306 self.storage.put('seed_version', self.seed_version, True)
1307 self.add_master_private_key(account_id, xprv, password)
1308 self.add_master_public_key(account_id, xpub)
1309 self.add_account(account_id, account)
1311 def create_watching_only_wallet(self, xpub):
1312 account = BIP32_Account({'xpub':xpub})
1313 account_id = 'm/' + bitcoin.get_xkey_name(xpub)
1314 self.storage.put('seed_version', self.seed_version, True)
1315 self.add_master_public_key(account_id, xpub)
1316 self.add_account(account_id, account)
1318 def create_accounts(self, password):
1319 # First check the password is valid (this raises if it isn't).
1320 if not self.is_watching_only():
1321 self.check_password(password)
1322 self.create_account('Main account', password)
1324 def add_master_public_key(self, name, xpub):
1325 self.master_public_keys[name] = xpub
1326 self.storage.put('master_public_keys', self.master_public_keys, True)
1328 def add_master_private_key(self, name, xpriv, password):
1329 self.master_private_keys[name] = pw_encode(xpriv, password)
1330 self.storage.put('master_private_keys', self.master_private_keys, True)
1332 def add_master_keys(self, root, account_id, password):
1333 x = self.master_private_keys.get(root)
1335 master_xpriv = pw_decode(x, password )
1336 xpriv, xpub = bip32_private_derivation(master_xpriv, root, account_id)
1337 self.add_master_public_key(account_id, xpub)
1338 self.add_master_private_key(account_id, xpriv, password)
1340 master_xpub = self.master_public_keys[root]
1341 xpub = bip32_public_derivation(master_xpub, root, account_id)
1342 self.add_master_public_key(account_id, xpub)
1345 def create_master_keys(self, password):
1346 xpriv, xpub = bip32_root(mnemonic_to_seed(self.get_seed(password),'').encode('hex'))
1347 self.add_master_public_key("m/", xpub)
1348 self.add_master_private_key("m/", xpriv, password)
1350 def find_root_by_master_key(self, xpub):
1351 for key, xpub2 in self.master_public_keys.items():
1352 if key == "m/":continue
1356 def num_accounts(self):
1358 for k, v in self.accounts.items():
1359 if type(v) != BIP32_Account:
1365 account_id = self.account_id(i)
1366 if account_id not in keys: break
1370 def next_account_address(self, password):
1371 i = self.num_accounts()
1372 account_id = self.account_id(i)
1374 addr = self.next_addresses.get(account_id)
1376 account = self.make_account(account_id, password)
1377 addr = account.first_address()
1378 self.next_addresses[account_id] = addr
1379 self.storage.put('next_addresses', self.next_addresses)
1381 return account_id, addr
1383 def account_id(self, i):
1386 def make_account(self, account_id, password):
1387 """Creates and saves the master keys, but does not save the account"""
1388 xpub = self.add_master_keys("m/", account_id, password)
1389 account = BIP32_Account({'xpub':xpub})
1392 def make_seed(self):
1393 import mnemonic, ecdsa
1394 entropy = ecdsa.util.randrange( pow(2,160) )
1397 ss = "%040x"%(entropy+nonce)
1398 s = hashlib.sha256(ss.decode('hex')).digest().encode('hex')
1399 # we keep only 13 words, that's approximately 139 bits of entropy
1400 words = mnemonic.mn_encode(s)[0:13]
1401 seed = ' '.join(words)
1402 if is_new_seed(seed):
1403 break # this will remove 8 bits of entropy
1407 def prepare_seed(self, seed):
1409 return NEW_SEED_VERSION, unicodedata.normalize('NFC', unicode(seed.strip()))
1412 class Wallet_2of2(NewWallet):
1413 """ This class is used for multisignature addresses"""
1415 def __init__(self, storage):
1416 NewWallet.__init__(self, storage)
1417 self.storage.put('wallet_type', '2of2', True)
1419 def default_account(self):
1420 return self.accounts['m/']
1422 def can_create_accounts(self):
1425 def can_import(self):
1428 def create_account(self, name, password):
1429 xpub1 = self.master_public_keys.get("m/")
1430 xpub2 = self.master_public_keys.get("cold/")
1431 account = BIP32_Account_2of2({'xpub':xpub1, 'xpub2':xpub2})
1432 self.add_account('m/', account)
1434 def get_master_public_keys(self):
1435 xpub1 = self.master_public_keys.get("m/")
1436 xpub2 = self.master_public_keys.get("cold/")
1437 return {'hot':xpub1, 'cold':xpub2}
1439 def get_action(self):
1440 xpub1 = self.master_public_keys.get("m/")
1441 xpub2 = self.master_public_keys.get("cold/")
1443 return 'create_seed'
1445 return 'add_cosigner'
1446 if not self.accounts:
1447 return 'create_accounts'
1450 class Wallet_2of3(Wallet_2of2):
1451 """ This class is used for multisignature addresses"""
1453 def __init__(self, storage):
1454 Wallet_2of2.__init__(self, storage)
1455 self.storage.put('wallet_type', '2of3', True)
1457 def create_account(self, name, password):
1458 xpub1 = self.master_public_keys.get("m/")
1459 xpub2 = self.master_public_keys.get("cold/")
1460 xpub3 = self.master_public_keys.get("remote/")
1461 account = BIP32_Account_2of3({'xpub':xpub1, 'xpub2':xpub2, 'xpub3':xpub3})
1462 self.add_account('m/', account)
1464 def get_master_public_keys(self):
1465 xpub1 = self.master_public_keys.get("m/")
1466 xpub2 = self.master_public_keys.get("cold/")
1467 xpub3 = self.master_public_keys.get("remote/")
1468 return {'hot':xpub1, 'cold':xpub2, 'remote':xpub3}
1470 def get_action(self):
1471 xpub1 = self.master_public_keys.get("m/")
1472 xpub2 = self.master_public_keys.get("cold/")
1473 xpub3 = self.master_public_keys.get("remote/")
1475 return 'create_seed'
1476 if xpub2 is None or xpub3 is None:
1477 return 'add_two_cosigners'
1478 if not self.accounts:
1479 return 'create_accounts'
1482 class OldWallet(Deterministic_Wallet):
1484 def default_account(self):
1485 return self.accounts[0]
1487 def make_seed(self):
1489 seed = random_seed(128)
1490 return ' '.join(mnemonic.mn_encode(seed))
1492 def prepare_seed(self, seed):
1494 # see if seed was entered as hex
1499 return OLD_SEED_VERSION, str(seed)
1503 words = seed.split()
1504 seed = mnemonic.mn_decode(words)
1506 raise Exception("Invalid seed")
1508 return OLD_SEED_VERSION, seed
1510 def create_master_keys(self, password):
1511 seed = self.get_seed(password)
1512 mpk = OldAccount.mpk_from_seed(seed)
1513 self.storage.put('master_public_key', mpk, True)
1515 def get_master_public_key(self):
1516 return self.storage.get("master_public_key")
1518 def get_master_public_keys(self):
1519 return {'Main Account':self.get_master_public_key()}
1521 def create_accounts(self, password):
1522 mpk = self.storage.get("master_public_key")
1523 self.create_account(mpk)
1525 def create_account(self, mpk):
1526 self.accounts[0] = OldAccount({'mpk':mpk, 0:[], 1:[]})
1527 self.save_accounts()
1529 def create_watching_only_wallet(self, mpk):
1530 self.seed_version = OLD_SEED_VERSION
1531 self.storage.put('seed_version', self.seed_version, True)
1532 self.storage.put('master_public_key', mpk, True)
1533 self.create_account(mpk)
1535 def get_seed(self, password):
1536 seed = pw_decode(self.seed, password).encode('utf8')
1539 def check_password(self, password):
1540 seed = self.get_seed(password)
1541 self.accounts[0].check_seed(seed)
1543 def get_mnemonic(self, password):
1545 s = self.get_seed(password)
1546 return ' '.join(mnemonic.mn_encode(s))
1548 def check_pending_accounts(self):
1552 # former WalletFactory
1553 class Wallet(object):
1554 """The main wallet "entry point".
1555 This class is actually a factory that will return a wallet of the correct
1556 type when passed a WalletStorage instance."""
1558 def __new__(self, storage):
1559 config = storage.config
1561 self.wallet_types = [
1562 ('standard', ("Standard wallet"), NewWallet if config.get('bip32') else OldWallet),
1563 ('imported', ("Imported wallet"), Imported_Wallet),
1564 ('2of2', ("Multisig wallet (2 of 2)"), Wallet_2of2),
1565 ('2of3', ("Multisig wallet (2 of 3)"), Wallet_2of3)
1567 run_hook('add_wallet_types', self.wallet_types)
1569 for t, l, WalletClass in self.wallet_types:
1570 if t == storage.get('wallet_type'):
1571 return WalletClass(storage)
1573 if not storage.file_exists:
1574 seed_version = NEW_SEED_VERSION if config.get('bip32') is True else OLD_SEED_VERSION
1576 seed_version = storage.get('seed_version')
1577 if not seed_version:
1578 seed_version = OLD_SEED_VERSION if len(storage.get('master_public_key')) == 128 else NEW_SEED_VERSION
1580 if seed_version == OLD_SEED_VERSION:
1581 return OldWallet(storage)
1582 elif seed_version == NEW_SEED_VERSION:
1583 return NewWallet(storage)
1585 msg = "This wallet seed is not supported."
1586 if seed_version in [5]:
1587 msg += "\nTo open this wallet, try 'git checkout seed_v%d'"%seed_version
1592 def is_seed(self, seed):
1595 elif is_old_seed(seed):
1597 elif is_new_seed(seed):
1603 def is_old_mpk(self, mpk):
1606 assert len(mpk) == 128
1612 def is_xpub(self, text):
1614 assert text[0:4] == 'xpub'
1615 deserialize_xkey(text)
1621 def is_xprv(self, text):
1623 assert text[0:4] == 'xprv'
1624 deserialize_xkey(text)
1630 def is_address(self, text):
1633 for x in text.split():
1634 if not bitcoin.is_address(x):
1639 def is_private_key(self, text):
1642 for x in text.split():
1643 if not bitcoin.is_private_key(x):
1648 def from_seed(self, seed, storage):
1649 if is_old_seed(seed):
1651 elif is_new_seed(seed):
1657 def from_address(self, text, storage):
1658 w = Imported_Wallet(storage)
1659 for x in text.split():
1660 w.accounts[IMPORTED_ACCOUNT].add(x, None, None, None)
1665 def from_private_key(self, text, storage):
1666 w = Imported_Wallet(storage)
1667 for x in text.split():
1668 w.import_key(x, None)
1672 def from_old_mpk(self, mpk, storage):
1673 w = OldWallet(storage)
1675 w.create_watching_only_wallet(mpk)
1679 def from_xpub(self, xpub, storage):
1680 w = NewWallet(storage)
1681 w.create_watching_only_wallet(xpub)
1685 def from_xprv(self, xprv, password, storage):
1686 w = NewWallet(storage)
1687 w.create_xprv_wallet(xprv, password)