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/>.
33 from util import print_msg, print_error, format_satoshis
36 from transaction import Transaction
37 from plugins import run_hook
39 COINBASE_MATURITY = 100
42 EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
43 DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
45 def pw_encode(s, password):
47 secret = Hash(password)
48 return EncodeAES(secret, s)
52 def pw_decode(s, password):
53 if password is not None:
54 secret = Hash(password)
56 d = DecodeAES(secret, s)
58 raise BaseException('Invalid password')
72 def __init__(self, config):
73 self.lock = threading.Lock()
75 self.file_exists = False
76 self.path = self.init_path(config)
77 print_error( "wallet path", self.path )
82 def init_path(self, config):
83 """Set the path of the wallet."""
85 # command line -w option
86 path = config.get('wallet_path')
91 path = config.get('default_wallet_path')
96 dirpath = os.path.join(config.path, "wallets")
97 if not os.path.exists(dirpath):
100 new_path = os.path.join(config.path, "wallets", "default_wallet")
102 # default path in pre 1.9 versions
103 old_path = os.path.join(config.path, "electrum.dat")
104 if os.path.exists(old_path) and not os.path.exists(new_path):
105 os.rename(old_path, new_path)
110 def read(self, path):
111 """Read the contents of the wallet file."""
113 with open(self.path, "r") as f:
118 d = ast.literal_eval( data ) #parse raw data from reading wallet file
120 raise IOError("Cannot read wallet file.")
123 self.file_exists = True
126 def get(self, key, default=None):
127 return self.data.get(key, default)
129 def put(self, key, value, save = True):
132 if value is not None:
133 self.data[key] = value
141 f = open(self.path,"w")
144 if 'ANDROID_DATA' not in os.environ:
146 os.chmod(self.path,stat.S_IREAD | stat.S_IWRITE)
151 def __init__(self, storage):
153 self.storage = storage
154 self.electrum_version = ELECTRUM_VERSION
155 self.gap_limit_for_change = 3 # constant
158 self.seed_version = storage.get('seed_version', SEED_VERSION)
160 self.gap_limit = storage.get('gap_limit', 5)
161 self.use_change = storage.get('use_change',True)
162 self.use_encryption = storage.get('use_encryption', False)
163 self.seed = storage.get('seed', '') # encrypted
164 self.labels = storage.get('labels', {})
165 self.frozen_addresses = storage.get('frozen_addresses',[])
166 self.prioritized_addresses = storage.get('prioritized_addresses',[])
167 self.addressbook = storage.get('contacts', [])
169 self.imported_keys = storage.get('imported_keys',{})
170 self.history = storage.get('addr_history',{}) # address -> list(txid, height)
172 self.fee = int(storage.get('fee_per_kb',20000))
174 self.master_public_keys = storage.get('master_public_keys',{})
175 self.master_private_keys = storage.get('master_private_keys', {})
177 self.next_addresses = storage.get('next_addresses',{})
179 if self.seed_version not in [4, 6]:
180 msg = "This wallet seed is not supported."
181 if self.seed_version in [5]:
182 msg += "\nTo open this wallet, try 'git checkout seed_v%d'"%self.seed_version
189 self.transactions = {}
190 tx_list = self.storage.get('transactions',{})
191 for k,v in tx_list.items():
195 print_msg("Warning: Cannot deserialize transactions. skipping")
198 self.add_extra_addresses(tx)
199 self.transactions[k] = tx
201 for h,tx in self.transactions.items():
202 if not self.check_new_tx(h, tx):
203 print_error("removing unreferenced tx", h)
204 self.transactions.pop(h)
208 self.prevout_values = {} # my own transaction outputs
209 self.spent_outputs = []
214 # there is a difference between wallet.up_to_date and interface.is_up_to_date()
215 # interface.is_up_to_date() returns true when all requests have been answered and processed
216 # wallet.up_to_date is true when the wallet is synchronized (stronger requirement)
218 self.up_to_date = False
219 self.lock = threading.Lock()
220 self.transaction_lock = threading.Lock()
221 self.tx_event = threading.Event()
223 for tx_hash, tx in self.transactions.items():
224 self.update_tx_outputs(tx_hash)
227 def add_extra_addresses(self, tx):
229 # find the address corresponding to pay-to-pubkey inputs
230 tx.add_extra_addresses(self.transactions)
231 for o in tx.d.get('outputs'):
232 if o.get('is_pubkey'):
233 for tx2 in self.transactions.values():
234 tx2.add_extra_addresses({h:tx})
239 def set_up_to_date(self,b):
240 with self.lock: self.up_to_date = b
243 def is_up_to_date(self):
244 with self.lock: return self.up_to_date
248 self.up_to_date = False
249 while not self.is_up_to_date():
253 def import_key(self, sec, password):
255 seed = self.get_seed(password)
257 address = address_from_private_key(sec)
259 raise BaseException('Invalid private key')
261 if self.is_mine(address):
262 raise BaseException('Address already in wallet')
264 # store the originally requested keypair into the imported keys table
265 self.imported_keys[address] = pw_encode(sec, password )
266 self.storage.put('imported_keys', self.imported_keys, True)
267 if self.synchronizer:
268 self.synchronizer.subscribe_to_addresses([address])
271 def delete_imported_key(self, addr):
272 if addr in self.imported_keys:
273 self.imported_keys.pop(addr)
274 self.storage.put('imported_keys', self.imported_keys, True)
278 import mnemonic, ecdsa
279 entropy = ecdsa.util.randrange( pow(2,160) )
282 ss = "%040x"%(entropy+nonce)
283 s = hashlib.sha256(ss.decode('hex')).digest().encode('hex')
284 # we keep only 13 words, that's approximately 139 bits of entropy
285 words = mnemonic.mn_encode(s)[0:13]
286 seed = ' '.join(words)
287 if mnemonic_hash(seed).startswith(SEED_PREFIX):
288 break # this removes 12 bits of entropy
294 def init_seed(self, seed):
298 raise BaseException("a seed exists")
301 self.seed = random_seed(128)
302 self.seed_version = 4
306 # self.seed = self.make_seed()
307 # self.seed_version = SEED_VERSION
310 # find out what kind of wallet we are
313 self.seed_version = 4
314 self.seed = str(seed)
320 self.seed_version = 4
321 self.seed = mnemonic.mn_decode(words)
324 # mnemonic.mn_decode(words)
325 # uses_electrum_words = True
327 # uses_electrum_words = False
329 #if uses_electrum_words and len(words) != 13:
330 # self.seed_version = 4
331 # self.seed = mnemonic.mn_decode(words)
333 # assert mnemonic_hash(seed).startswith(SEED_PREFIX)
334 # self.seed_version = SEED_VERSION
339 self.storage.put('seed', self.seed, True)
340 self.storage.put('seed_version', self.seed_version, True)
342 def create_watching_only_wallet(self, params):
348 self.seed_version = 4
349 self.create_old_account(K0)
353 self.master_public_keys = {
354 "m/0'/": (c0, K0, cK0),
356 self.storage.put('master_public_keys', self.master_public_keys, True)
357 self.create_account('1','Main account')
360 def create_accounts(self):
361 if self.seed_version == 4:
362 mpk = OldAccount.mpk_from_seed(self.seed)
363 self.create_old_account(mpk)
365 # create default account
366 self.create_master_keys('1')
367 self.create_account('1','Main account')
370 def create_master_keys(self, account_type):
371 master_k, master_c, master_K, master_cK = bip32_init(self.get_seed(None))
372 if account_type == '1':
373 k0, c0, K0, cK0 = bip32_private_derivation(master_k, master_c, "m/", "m/0'/")
374 self.master_public_keys["m/0'/"] = (c0, K0, cK0)
375 self.master_private_keys["m/0'/"] = k0
376 elif account_type == '2of2':
377 k1, c1, K1, cK1 = bip32_private_derivation(master_k, master_c, "m/", "m/1'/")
378 k2, c2, K2, cK2 = bip32_private_derivation(master_k, master_c, "m/", "m/2'/")
379 self.master_public_keys["m/1'/"] = (c1, K1, cK1)
380 self.master_public_keys["m/2'/"] = (c2, K2, cK2)
381 self.master_private_keys["m/1'/"] = k1
382 self.master_private_keys["m/2'/"] = k2
383 elif account_type == '2of3':
384 k3, c3, K3, cK3 = bip32_private_derivation(master_k, master_c, "m/", "m/3'/")
385 k4, c4, K4, cK4 = bip32_private_derivation(master_k, master_c, "m/", "m/4'/")
386 k5, c5, K5, cK5 = bip32_private_derivation(master_k, master_c, "m/", "m/5'/")
387 self.master_public_keys["m/3'/"] = (c3, K3, cK3)
388 self.master_public_keys["m/4'/"] = (c4, K4, cK4)
389 self.master_public_keys["m/5'/"] = (c5, K5, cK5)
390 self.master_private_keys["m/3'/"] = k3
391 self.master_private_keys["m/4'/"] = k4
392 self.master_private_keys["m/5'/"] = k5
394 self.storage.put('master_public_keys', self.master_public_keys, True)
395 self.storage.put('master_private_keys', self.master_private_keys, True)
397 def has_master_public_keys(self, account_type):
398 if account_type == '1':
399 return "m/0'/" in self.master_public_keys
400 elif account_type == '2of2':
401 return set(["m/1'/", "m/2'/"]) <= set(self.master_public_keys.keys())
402 elif account_type == '2of3':
403 return set(["m/3'/", "m/4'/", "m/5'/"]) <= set(self.master_public_keys.keys())
405 def find_root_by_master_key(self, c, K):
406 for key, v in self.master_public_keys.items():
407 if key == "m/":continue
409 if (c == cc) and (K == KK):
412 def deseed_root(self, seed, password):
413 # for safety, we ask the user to enter their seed
414 assert seed == self.get_seed(password)
416 self.storage.put('seed', '', True)
419 def deseed_branch(self, k):
420 # check that parent has no seed
421 assert self.seed == ''
422 self.master_private_keys.pop(k)
423 self.storage.put('master_private_keys', self.master_private_keys, True)
425 def is_watching_only(self):
426 return (self.seed == '') and (self.master_private_keys == {})
430 def account_id(self, account_type, i):
431 if account_type == '1':
433 elif account_type == '2of2':
434 return "m/1'/%d & m/2'/%d"%(i,i)
435 elif account_type == '2of3':
436 return "m/3'/%d & m/4'/%d & m/5'/%d"%(i,i,i)
438 raise BaseException('unknown account type')
441 def num_accounts(self, account_type):
442 keys = self.accounts.keys()
445 account_id = self.account_id(account_type, i)
446 if account_id not in keys: break
451 def new_account_address(self, account_type = '1'):
452 i = self.num_accounts(account_type)
453 k = self.account_id(account_type,i)
455 addr = self.next_addresses.get(k)
457 account_id, account = self.next_account(account_type)
458 addr = account.first_address()
459 self.next_addresses[k] = addr
460 self.storage.put('next_addresses',self.next_addresses)
465 def next_account(self, account_type = '1'):
467 i = self.num_accounts(account_type)
468 account_id = self.account_id(account_type,i)
470 if account_type is '1':
471 master_c0, master_K0, _ = self.master_public_keys["m/0'/"]
472 c0, K0, cK0 = bip32_public_derivation(master_c0.decode('hex'), master_K0.decode('hex'), "m/0'/", "m/0'/%d"%i)
473 account = BIP32_Account({ 'c':c0, 'K':K0, 'cK':cK0 })
475 elif account_type == '2of2':
476 master_c1, master_K1, _ = self.master_public_keys["m/1'/"]
477 c1, K1, cK1 = bip32_public_derivation(master_c1.decode('hex'), master_K1.decode('hex'), "m/1'/", "m/1'/%d"%i)
478 master_c2, master_K2, _ = self.master_public_keys["m/2'/"]
479 c2, K2, cK2 = bip32_public_derivation(master_c2.decode('hex'), master_K2.decode('hex'), "m/2'/", "m/2'/%d"%i)
480 account = BIP32_Account_2of2({ 'c':c1, 'K':K1, 'cK':cK1, 'c2':c2, 'K2':K2, 'cK2':cK2 })
482 elif account_type == '2of3':
483 master_c3, master_K3, _ = self.master_public_keys["m/3'/"]
484 c3, K3, cK3 = bip32_public_derivation(master_c3.decode('hex'), master_K3.decode('hex'), "m/3'/", "m/3'/%d"%i)
485 master_c4, master_K4, _ = self.master_public_keys["m/4'/"]
486 c4, K4, cK4 = bip32_public_derivation(master_c4.decode('hex'), master_K4.decode('hex'), "m/4'/", "m/4'/%d"%i)
487 master_c5, master_K5, _ = self.master_public_keys["m/5'/"]
488 c5, K5, cK5 = bip32_public_derivation(master_c5.decode('hex'), master_K5.decode('hex'), "m/5'/", "m/5'/%d"%i)
489 account = BIP32_Account_2of3({ 'c':c3, 'K':K3, 'cK':cK3, 'c2':c4, 'K2':K4, 'cK2':cK4, 'c3':c5, 'K3':K5, 'cK3':cK5 })
491 return account_id, account
494 def set_label(self, name, text = None):
496 old_text = self.labels.get(name)
499 self.labels[name] = text
503 self.labels.pop(name)
507 self.storage.put('labels', self.labels, True)
509 run_hook('set_label', name, text, changed)
514 def create_account(self, account_type = '1', name = None):
515 k, account = self.next_account(account_type)
516 if k in self.pending_accounts:
517 self.pending_accounts.pop(k)
518 self.storage.put('pending_accounts', self.pending_accounts)
520 self.accounts[k] = account
523 self.set_label(k, name)
526 def create_old_account(self, mpk):
527 self.storage.put('master_public_key', mpk, True)
528 self.accounts[0] = OldAccount({'mpk':mpk, 0:[], 1:[]})
532 def save_accounts(self):
534 for k, v in self.accounts.items():
536 self.storage.put('accounts', d, True)
540 def load_accounts(self):
541 d = self.storage.get('accounts', {})
543 for k, v in d.items():
545 v['mpk'] = self.storage.get('master_public_key')
546 self.accounts[k] = OldAccount(v)
548 self.accounts[k] = BIP32_Account_2of2(v)
550 self.accounts[k] = BIP32_Account(v)
552 self.pending_accounts = self.storage.get('pending_accounts',{})
555 def delete_pending_account(self, k):
556 self.pending_accounts.pop(k)
557 self.storage.put('pending_accounts', self.pending_accounts)
559 def account_is_pending(self, k):
560 return k in self.pending_accounts
562 def create_pending_account(self, acct_type, name):
563 k, addr = self.new_account_address(acct_type)
564 self.set_label(k, name)
565 self.pending_accounts[k] = addr
566 self.storage.put('pending_accounts', self.pending_accounts)
568 def get_pending_accounts(self):
569 return self.pending_accounts.items()
572 def addresses(self, include_change = True, _next=True):
573 o = self.get_account_addresses(-1, include_change)
574 for a in self.accounts.keys():
575 o += self.get_account_addresses(a, include_change)
578 for addr in self.next_addresses.values():
584 def is_mine(self, address):
585 return address in self.addresses(True)
588 def is_change(self, address):
589 if not self.is_mine(address): return False
590 if address in self.imported_keys.keys(): return False
591 acct, s = self.get_address_index(address)
592 if s is None: return False
595 def get_master_public_key(self):
596 if self.seed_version == 4:
597 return self.storage.get("master_public_key")
599 c, K, cK = self.storage.get("master_public_keys")["m/0'/"]
602 def get_master_private_key(self, account, password):
603 master_k = pw_decode( self.master_private_keys[account], password)
604 master_c, master_K, master_Kc = self.master_public_keys[account]
606 K, Kc = get_pubkeys_from_secret(master_k.decode('hex'))
607 assert K.encode('hex') == master_K
609 raise BaseException("Invalid password")
613 def get_address_index(self, address):
614 if address in self.imported_keys.keys():
617 for account in self.accounts.keys():
618 for for_change in [0,1]:
619 addresses = self.accounts[account].get_addresses(for_change)
620 for addr in addresses:
622 return account, (for_change, addresses.index(addr))
624 for k,v in self.next_addresses.items():
628 raise BaseException("Address not found", address)
631 def get_roots(self, account):
633 for a in account.split('&'):
635 m = re.match("(m/\d+'/)(\d+)", s)
636 roots.append( m.group(1) )
639 def is_seeded(self, account):
640 if type(account) is int:
641 return self.seed is not None
643 for root in self.get_roots(account):
644 if root not in self.master_private_keys.keys():
648 def rebase_sequence(self, account, sequence):
651 for a in account.split('&'):
653 m = re.match("(m/\d+'/)(\d+)", s)
655 num = int(m.group(2))
656 dd.append( (root, [num,c,i] ) )
660 def get_keyID(self, account, sequence):
663 mpk = self.storage.get('master_public_key')
664 return 'old(%s,%d,%d)'%(mpk,a,b)
666 rs = self.rebase_sequence(account, sequence)
668 for root, public_sequence in rs:
669 c, K, _ = self.master_public_keys[root]
670 s = '/' + '/'.join( map(lambda x:str(x), public_sequence) )
671 dd.append( 'bip32(%s,%s,%s)'%(c,K, s) )
676 def get_seed(self, password):
677 s = pw_decode(self.seed, password)
678 if self.seed_version == 4:
681 seed = mnemonic_hash(s)
682 #todo: #self.sequences[0].check_seed(seed)
686 def get_mnemonic(self, password):
688 s = pw_decode(self.seed, password)
689 if self.seed_version == 4:
690 return ' '.join(mnemonic.mn_encode(s))
696 def get_private_key(self, address, password):
698 if address in self.imported_keys.keys():
699 out.append( pw_decode( self.imported_keys[address], password ) )
701 account, sequence = self.get_address_index(address)
703 seed = self.get_seed(password)
704 pk = self.accounts[account].get_private_key(seed, sequence)
708 # assert address == self.accounts[account].get_address(*sequence)
709 rs = self.rebase_sequence( account, sequence)
710 for root, public_sequence in rs:
712 if root not in self.master_private_keys.keys(): continue
713 master_k = self.get_master_private_key(root, password)
714 master_c, _, _ = self.master_public_keys[root]
715 pk = bip32_private_key( public_sequence, master_k.decode('hex'), master_c.decode('hex'))
721 def add_keypairs_from_wallet(self, tx, keypairs, password):
722 for txin in tx.inputs:
723 address = txin['address']
724 private_keys = self.get_private_key(address, password)
725 for sec in private_keys:
726 pubkey = public_key_from_private_key(sec)
727 keypairs[ pubkey ] = sec
728 if address in self.imported_keys.keys():
729 txin['redeemPubkey'] = pubkey
732 def add_keypairs_from_KeyID(self, tx, keypairs, password):
733 for txin in tx.inputs:
734 keyid = txin.get('KeyID')
737 if self.seed_version==4:
738 m = re.match("old\(([0-9a-f]+),(\d+),(\d+)", keyid)
741 if mpk != self.storage.get('master_public_key'): continue
742 index = int(m.group(2))
743 num = int(m.group(3))
744 account = self.accounts[0]
745 addr = account.get_address(index, num)
746 txin['address'] = addr # fixme: side effect
747 pk = self.get_private_key(addr, password)
749 pubkey = public_key_from_private_key(sec)
750 keypairs[pubkey] = sec
755 for s in keyid.split('&'):
756 m = re.match("bip32\(([0-9a-f]+),([0-9a-f]+),(/\d+/\d+/\d+)", s)
760 sequence = m.group(3)
761 root = self.find_root_by_master_key(c,K)
762 if not root: continue
763 sequence = map(lambda x:int(x), sequence.strip('/').split('/'))
764 root = root + '%d'%sequence[0]
765 sequence = sequence[1:]
766 roots.append((root,sequence))
768 account_id = " & ".join( map(lambda x:x[0], roots) )
769 account = self.accounts.get(account_id)
770 if not account: continue
771 addr = account.get_address(*sequence)
772 txin['address'] = addr # fixme: side effect
773 pk = self.get_private_key(addr, password)
775 pubkey = public_key_from_private_key(sec)
776 keypairs[pubkey] = sec
780 def signrawtransaction(self, tx, input_info, private_keys, password):
782 # check that the password is correct
783 seed = self.get_seed(password)
786 tx.add_input_info(input_info)
788 # add redeem script for coins that are in the wallet
789 # FIXME: add redeemPubkey too!
790 unspent_coins = self.get_unspent_coins()
791 for txin in tx.inputs:
792 for item in unspent_coins:
793 if txin['prevout_hash'] == item['prevout_hash'] and txin['prevout_n'] == item['prevout_n']:
794 print_error( "tx input is in unspent coins" )
795 txin['scriptPubKey'] = item['scriptPubKey']
796 account, sequence = self.get_address_index(item['address'])
798 txin['redeemScript'] = self.accounts[account].redeem_script(sequence)
799 print_error("added redeemScript", txin['redeemScript'])
803 # build a list of public/private keys
806 # add private keys from parameter
807 for sec in private_keys:
808 pubkey = public_key_from_private_key(sec)
809 keypairs[ pubkey ] = sec
811 # add private_keys from KeyID
812 self.add_keypairs_from_KeyID(tx, keypairs, password)
814 # add private keys from wallet
815 self.add_keypairs_from_wallet(tx, keypairs, password)
816 self.sign_transaction(tx, keypairs)
819 def sign_message(self, address, message, password):
820 keys = self.get_private_key(address, password)
821 assert len(keys) == 1
823 key = regenerate_key(sec)
824 compressed = is_compressed(sec)
825 return key.sign_message(message, compressed, address)
828 def change_gap_limit(self, value):
829 if value >= self.gap_limit:
830 self.gap_limit = value
831 self.storage.put('gap_limit', self.gap_limit, True)
832 #self.interface.poke('synchronizer')
835 elif value >= self.min_acceptable_gap():
836 for key, account in self.accounts.items():
837 addresses = account[0]
838 k = self.num_unused_trailing_addresses(addresses)
839 n = len(addresses) - k + value
840 addresses = addresses[0:n]
841 self.accounts[key][0] = addresses
843 self.gap_limit = value
844 self.storage.put('gap_limit', self.gap_limit, True)
850 def num_unused_trailing_addresses(self, addresses):
852 for a in addresses[::-1]:
853 if self.history.get(a):break
857 def min_acceptable_gap(self):
858 # fixme: this assumes wallet is synchronized
862 for account in self.accounts.values():
863 addresses = account.get_addresses(0)
864 k = self.num_unused_trailing_addresses(addresses)
865 for a in addresses[0:-k]:
866 if self.history.get(a):
870 if n > nmax: nmax = n
874 def address_is_old(self, address):
876 h = self.history.get(address, [])
879 for tx_hash, tx_height in h:
883 tx_age = self.verifier.blockchain.height() - tx_height + 1
889 def synchronize_sequence(self, account, for_change):
890 limit = self.gap_limit_for_change if for_change else self.gap_limit
893 addresses = account.get_addresses(for_change)
894 if len(addresses) < limit:
895 address = account.create_new_address(for_change)
896 self.history[address] = []
897 new_addresses.append( address )
900 if map( lambda a: self.address_is_old(a), addresses[-limit:] ) == limit*[False]:
903 address = account.create_new_address(for_change)
904 self.history[address] = []
905 new_addresses.append( address )
911 def create_pending_accounts(self):
912 for account_type in ['1','2of2','2of3']:
913 if not self.has_master_public_keys(account_type):
915 k, a = self.new_account_address(account_type)
916 if self.address_is_old(a):
917 print_error( "creating account", a )
918 self.create_account(account_type)
919 self.next_addresses.pop(k)
922 def synchronize_account(self, account):
924 new += self.synchronize_sequence(account, 0)
925 new += self.synchronize_sequence(account, 1)
929 def synchronize(self):
930 if self.master_public_keys:
931 self.create_pending_accounts()
933 for account in self.accounts.values():
934 new += self.synchronize_account(account)
937 self.storage.put('addr_history', self.history, True)
942 return self.history.values() != [[]] * len(self.history)
945 def add_contact(self, address, label=None):
946 self.addressbook.append(address)
947 self.storage.put('contacts', self.addressbook, True)
949 self.set_label(address, label)
952 def delete_contact(self, addr):
953 if addr in self.addressbook:
954 self.addressbook.remove(addr)
955 self.storage.put('addressbook', self.addressbook, True)
958 def fill_addressbook(self):
959 for tx_hash, tx in self.transactions.items():
960 is_relevant, is_send, _, _ = self.get_tx_value(tx)
962 for addr, v in tx.outputs:
963 if not self.is_mine(addr) and addr not in self.addressbook:
964 self.addressbook.append(addr)
966 # self.update_tx_labels()
968 def get_num_tx(self, address):
970 for tx in self.transactions.values():
971 if address in map(lambda x:x[0], tx.outputs): n += 1
975 def get_address_flags(self, addr):
976 flags = "C" if self.is_change(addr) else "I" if addr in self.imported_keys.keys() else "-"
977 flags += "F" if addr in self.frozen_addresses else "P" if addr in self.prioritized_addresses else "-"
981 def get_tx_value(self, tx, account=None):
982 domain = self.get_account_addresses(account)
983 return tx.get_value(domain, self.prevout_values)
986 def update_tx_outputs(self, tx_hash):
987 tx = self.transactions.get(tx_hash)
989 for i, (addr, value) in enumerate(tx.outputs):
990 key = tx_hash+ ':%d'%i
991 self.prevout_values[key] = value
993 for item in tx.inputs:
994 if self.is_mine(item.get('address')):
995 key = item['prevout_hash'] + ':%d'%item['prevout_n']
996 self.spent_outputs.append(key)
999 def get_addr_balance(self, address):
1000 assert self.is_mine(address)
1001 h = self.history.get(address,[])
1002 if h == ['*']: return 0,0
1004 received_coins = [] # list of coins received at address
1006 for tx_hash, tx_height in h:
1007 tx = self.transactions.get(tx_hash)
1010 for i, (addr, value) in enumerate(tx.outputs):
1012 key = tx_hash + ':%d'%i
1013 received_coins.append(key)
1015 for tx_hash, tx_height in h:
1016 tx = self.transactions.get(tx_hash)
1020 for item in tx.inputs:
1021 addr = item.get('address')
1023 key = item['prevout_hash'] + ':%d'%item['prevout_n']
1024 value = self.prevout_values.get( key )
1025 if key in received_coins:
1028 for i, (addr, value) in enumerate(tx.outputs):
1029 key = tx_hash + ':%d'%i
1040 def get_account_name(self, k):
1042 if self.seed_version == 4:
1043 name = 'Main account'
1045 name = 'Old account'
1047 default = "Unnamed account"
1048 m = re.match("m/0'/(\d+)", k)
1052 default = "Main account"
1054 default = "Account %s"%num
1056 m = re.match("m/1'/(\d+) & m/2'/(\d+)", k)
1059 default = "2of2 account %s"%num
1060 name = self.labels.get(k, default)
1064 def get_account_names(self):
1066 for k, account in self.accounts.items():
1067 accounts[k] = self.get_account_name(k)
1068 if self.imported_keys:
1069 accounts[-1] = 'Imported keys'
1072 def get_account_addresses(self, a, include_change=True):
1074 o = self.addresses(True)
1076 o = self.imported_keys.keys()
1078 ac = self.accounts[a]
1079 o = ac.get_addresses(0)
1080 if include_change: o += ac.get_addresses(1)
1083 def get_imported_balance(self):
1084 return self.get_balance(self.imported_keys.keys())
1086 def get_account_balance(self, account):
1087 return self.get_balance(self.get_account_addresses(account))
1089 def get_frozen_balance(self):
1090 return self.get_balance(self.frozen_addresses)
1092 def get_balance(self, domain=None):
1093 if domain is None: domain = self.addresses(True)
1096 c, u = self.get_addr_balance(addr)
1102 def get_unspent_coins(self, domain=None):
1104 if domain is None: domain = self.addresses(True)
1106 h = self.history.get(addr, [])
1107 if h == ['*']: continue
1108 for tx_hash, tx_height in h:
1109 tx = self.transactions.get(tx_hash)
1110 if tx is None: raise BaseException("Wallet not synchronized")
1111 is_coinbase = tx.inputs[0].get('prevout_hash') == '0'*64
1112 for output in tx.d.get('outputs'):
1113 if output.get('address') != addr: continue
1114 key = tx_hash + ":%d" % output.get('prevout_n')
1115 if key in self.spent_outputs: continue
1116 output['prevout_hash'] = tx_hash
1117 output['height'] = tx_height
1118 output['coinbase'] = is_coinbase
1119 coins.append((tx_height, output))
1123 coins = sorted(coins)
1124 if coins[-1][0] != 0:
1125 while coins[0][0] == 0:
1126 coins = coins[1:] + [ coins[0] ]
1127 return [x[1] for x in coins]
1131 def choose_tx_inputs_from_account( self, amount, fixed_fee, account ):
1132 domain = self.get_account_addresses(account) if account else None
1133 return self.choose_tx_inputs( amount, fixed_fee, domain )
1136 def choose_tx_inputs( self, amount, fixed_fee, domain = None ):
1137 """ todo: minimize tx size """
1139 fee = self.fee if fixed_fee is None else fixed_fee
1141 domain = self.addresses(True)
1143 for i in self.frozen_addresses:
1144 if i in domain: domain.remove(i)
1147 for i in self.prioritized_addresses:
1150 prioritized.append(i)
1152 coins = self.get_unspent_coins(domain)
1153 prioritized_coins = self.get_unspent_coins(prioritized)
1156 coins = prioritized_coins + coins
1159 if item.get('coinbase') and item.get('height') + COINBASE_MATURITY > self.network.blockchain.height:
1161 addr = item.get('address')
1162 v = item.get('value')
1165 fee = self.estimated_fee(inputs) if fixed_fee is None else fixed_fee
1166 if total >= amount + fee: break
1170 return inputs, total, fee
1173 def set_fee(self, fee):
1176 self.storage.put('fee_per_kb', self.fee, True)
1178 def estimated_fee(self, inputs):
1179 estimated_size = len(inputs) * 180 + 80 # this assumes non-compressed keys
1180 fee = self.fee * int(round(estimated_size/1024.))
1181 if fee == 0: fee = self.fee
1185 def add_tx_change( self, inputs, outputs, amount, fee, total, change_addr=None):
1186 "add change to a transaction"
1187 change_amount = total - ( amount + fee )
1188 if change_amount != 0:
1191 # send change to one of the accounts involved in the tx
1192 address = inputs[0].get('address')
1193 account, _ = self.get_address_index(address)
1195 if not self.use_change or account == -1:
1196 change_addr = inputs[-1]['address']
1198 change_addr = self.accounts[account].get_addresses(1)[-self.gap_limit_for_change]
1200 # Insert the change output at a random position in the outputs
1201 posn = random.randint(0, len(outputs))
1202 outputs[posn:posn] = [( change_addr, change_amount)]
1206 def get_history(self, address):
1208 return self.history.get(address)
1211 def get_status(self, h):
1212 if not h: return None
1213 if h == ['*']: return '*'
1215 for tx_hash, height in h:
1216 status += tx_hash + ':%d:' % height
1217 return hashlib.sha256( status ).digest().encode('hex')
1220 def receive_tx_callback(self, tx_hash, tx, tx_height):
1222 with self.transaction_lock:
1223 self.add_extra_addresses(tx)
1224 if not self.check_new_tx(tx_hash, tx):
1225 # may happen due to pruning
1226 print_error("received transaction that is no longer referenced in history", tx_hash)
1228 self.transactions[tx_hash] = tx
1229 self.network.interface.pending_transactions_for_notifications.append(tx)
1230 self.save_transactions()
1231 if self.verifier and tx_height>0:
1232 self.verifier.add(tx_hash, tx_height)
1233 self.update_tx_outputs(tx_hash)
1236 def save_transactions(self):
1238 for k,v in self.transactions.items():
1240 self.storage.put('transactions', tx, True)
1242 def receive_history_callback(self, addr, hist):
1244 if not self.check_new_history(addr, hist):
1245 raise BaseException("error: received history for %s is not consistent with known transactions"%addr)
1248 self.history[addr] = hist
1249 self.storage.put('addr_history', self.history, True)
1252 for tx_hash, tx_height in hist:
1254 # add it in case it was previously unconfirmed
1255 if self.verifier: self.verifier.add(tx_hash, tx_height)
1258 def get_tx_history(self, account=None):
1259 with self.transaction_lock:
1260 history = self.transactions.items()
1261 history.sort(key = lambda x: self.verifier.get_txpos(x[0]))
1265 for tx_hash, tx in history:
1266 is_relevant, is_mine, v, fee = self.get_tx_value(tx, account)
1267 if v is not None: balance += v
1269 c, u = self.get_account_balance(account)
1272 result.append( ('', 1000, 0, c+u-balance, None, c+u-balance, None ) )
1274 balance = c + u - balance
1275 for tx_hash, tx in history:
1276 is_relevant, is_mine, value, fee = self.get_tx_value(tx, account)
1279 if value is not None:
1282 conf, timestamp = self.verifier.get_confirmations(tx_hash) if self.verifier else (None, None)
1283 result.append( (tx_hash, conf, is_mine, value, fee, balance, timestamp) )
1288 def get_label(self, tx_hash):
1289 label = self.labels.get(tx_hash)
1290 is_default = (label == '') or (label is None)
1291 if is_default: label = self.get_default_label(tx_hash)
1292 return label, is_default
1295 def get_default_label(self, tx_hash):
1296 tx = self.transactions.get(tx_hash)
1299 is_relevant, is_mine, _, _ = self.get_tx_value(tx)
1301 for o in tx.outputs:
1303 if not self.is_mine(o_addr):
1305 default_label = self.labels[o_addr]
1307 default_label = o_addr
1310 default_label = '(internal)'
1312 for o in tx.outputs:
1314 if self.is_mine(o_addr) and not self.is_change(o_addr):
1317 for o in tx.outputs:
1319 if self.is_mine(o_addr):
1325 dest_label = self.labels.get(o_addr)
1327 default_label = self.labels[o_addr]
1329 default_label = o_addr
1331 return default_label
1334 def make_unsigned_transaction(self, outputs, fee=None, change_addr=None, domain=None ):
1335 for address, x in outputs:
1336 assert is_valid(address)
1337 amount = sum( map(lambda x:x[1], outputs) )
1338 inputs, total, fee = self.choose_tx_inputs( amount, fee, domain )
1340 raise ValueError("Not enough funds")
1341 self.add_input_info(inputs)
1342 outputs = self.add_tx_change(inputs, outputs, amount, fee, total, change_addr)
1343 return Transaction.from_io(inputs, outputs)
1346 def mktx_from_account(self, outputs, password, fee=None, account=None):
1347 domain = self.get_account_addresses(account) if account else None
1348 return self.mktx(outputs, password, fee, change_addr=None, domain=domain)
1351 def mktx(self, outputs, password, fee=None, change_addr=None, domain= None ):
1352 tx = self.make_unsigned_transaction(outputs, fee, change_addr, domain)
1354 self.add_keypairs_from_wallet(tx, keypairs, password)
1356 self.sign_transaction(tx, keypairs)
1360 def add_input_info(self, inputs):
1362 address = txin['address']
1363 if address in self.imported_keys.keys():
1365 account, sequence = self.get_address_index(address)
1366 txin['KeyID'] = self.get_keyID(account, sequence)
1367 redeemScript = self.accounts[account].redeem_script(sequence)
1369 txin['redeemScript'] = redeemScript
1371 txin['redeemPubkey'] = self.accounts[account].get_pubkey(*sequence)
1374 def sign_transaction(self, tx, keypairs):
1376 run_hook('sign_transaction', tx)
1379 def sendtx(self, tx):
1381 h = self.send_tx(tx)
1382 self.tx_event.wait()
1383 return self.receive_tx(h)
1385 def send_tx(self, tx):
1387 self.tx_event.clear()
1388 self.network.interface.send([('blockchain.transaction.broadcast', [str(tx)])], self.on_broadcast)
1391 def on_broadcast(self, i, r):
1392 self.tx_result = r.get('result')
1395 def receive_tx(self,tx_hash):
1396 out = self.tx_result
1398 return False, "error: " + out
1403 def update_password(self, old_password, new_password):
1404 if new_password == '': new_password = None
1405 # this will throw an exception if unicode cannot be converted
1406 decoded = pw_decode(self.seed, old_password)
1407 self.seed = pw_encode( decoded, new_password)
1408 self.storage.put('seed', self.seed, True)
1409 self.use_encryption = (new_password != None)
1410 self.storage.put('use_encryption', self.use_encryption,True)
1411 for k in self.imported_keys.keys():
1412 a = self.imported_keys[k]
1413 b = pw_decode(a, old_password)
1414 c = pw_encode(b, new_password)
1415 self.imported_keys[k] = c
1416 self.storage.put('imported_keys', self.imported_keys, True)
1418 for k, v in self.master_private_keys.items():
1419 b = pw_decode(v, old_password)
1420 c = pw_encode(b, new_password)
1421 self.master_private_keys[k] = c
1422 self.storage.put('master_private_keys', self.master_private_keys, True)
1425 def freeze(self,addr):
1426 if self.is_mine(addr) and addr not in self.frozen_addresses:
1427 self.unprioritize(addr)
1428 self.frozen_addresses.append(addr)
1429 self.storage.put('frozen_addresses', self.frozen_addresses, True)
1434 def unfreeze(self,addr):
1435 if self.is_mine(addr) and addr in self.frozen_addresses:
1436 self.frozen_addresses.remove(addr)
1437 self.storage.put('frozen_addresses', self.frozen_addresses, True)
1442 def prioritize(self,addr):
1443 if self.is_mine(addr) and addr not in self.prioritized_addresses:
1445 self.prioritized_addresses.append(addr)
1446 self.storage.put('prioritized_addresses', self.prioritized_addresses, True)
1451 def unprioritize(self,addr):
1452 if self.is_mine(addr) and addr in self.prioritized_addresses:
1453 self.prioritized_addresses.remove(addr)
1454 self.storage.put('prioritized_addresses', self.prioritized_addresses, True)
1460 def set_verifier(self, verifier):
1461 self.verifier = verifier
1463 # review transactions that are in the history
1464 for addr, hist in self.history.items():
1465 if hist == ['*']: continue
1466 for tx_hash, tx_height in hist:
1468 # add it in case it was previously unconfirmed
1469 self.verifier.add(tx_hash, tx_height)
1472 # if we are on a pruning server, remove unverified transactions
1473 vr = self.verifier.transactions.keys() + self.verifier.verified_tx.keys()
1474 for tx_hash in self.transactions.keys():
1475 if tx_hash not in vr:
1476 self.transactions.pop(tx_hash)
1480 def check_new_history(self, addr, hist):
1482 # check that all tx in hist are relevant
1484 for tx_hash, height in hist:
1485 tx = self.transactions.get(tx_hash)
1487 if not tx.has_address(addr):
1490 # check that we are not "orphaning" a transaction
1491 old_hist = self.history.get(addr,[])
1492 if old_hist == ['*']: return True
1494 for tx_hash, height in old_hist:
1495 if tx_hash in map(lambda x:x[0], hist): continue
1497 for _addr, _hist in self.history.items():
1498 if _addr == addr: continue
1499 if _hist == ['*']: continue
1500 _tx_hist = map(lambda x:x[0], _hist)
1501 if tx_hash in _tx_hist:
1506 tx = self.transactions.get(tx_hash)
1507 # tx might not be there
1511 if self.verifier.get_height(tx_hash):
1514 print_error("new history is orphaning transaction:", tx_hash)
1515 # check that all outputs are not mine, request histories
1517 for _addr, _v in tx.outputs:
1518 # assert not self.is_mine(_addr)
1519 ext_requests.append( ('blockchain.address.get_history', [_addr]) )
1521 ext_h = self.network.synchronous_get(ext_requests)
1522 print_error("sync:", ext_requests, ext_h)
1525 if h == ['*']: continue
1527 if item.get('tx_hash') == tx_hash:
1528 height = item.get('height')
1530 print_error("found height for", tx_hash, height)
1531 self.verifier.add(tx_hash, height)
1533 print_error("removing orphaned tx from history", tx_hash)
1534 self.transactions.pop(tx_hash)
1540 def check_new_tx(self, tx_hash, tx):
1541 # 1 check that tx is referenced in addr_history.
1543 for addr, hist in self.history.items():
1544 if hist == ['*']:continue
1545 for txh, height in hist:
1547 addresses.append(addr)
1552 # 2 check that referencing addresses are in the tx
1553 for addr in addresses:
1554 if not tx.has_address(addr):
1560 def start_threads(self, network):
1561 from verifier import TxVerifier
1562 self.network = network
1563 self.verifier = TxVerifier(self.network, self.storage)
1564 self.verifier.start()
1565 self.set_verifier(self.verifier)
1566 self.synchronizer = WalletSynchronizer(self, network)
1567 self.synchronizer.start()
1569 def stop_threads(self):
1570 self.verifier.stop()
1571 self.synchronizer.stop()
1575 def restore(self, callback):
1577 def wait_for_wallet():
1578 self.set_up_to_date(False)
1579 while not self.is_up_to_date():
1580 msg = "%s\n%s %d\n%s %.1f"%(
1581 _("Please wait..."),
1582 _("Addresses generated:"),
1583 len(self.addresses(True)),_("Kilobytes received:"),
1584 self.network.interface.bytes_received/1024.)
1586 apply(callback, (msg,))
1589 def wait_for_network():
1590 while not self.network.is_connected():
1591 msg = "%s \n" % (_("Connecting..."))
1592 apply(callback, (msg,))
1595 # wait until we are connected, because the user might have selected another server
1599 self.create_accounts()
1605 class WalletSynchronizer(threading.Thread):
1608 def __init__(self, wallet, network):
1609 threading.Thread.__init__(self)
1611 self.wallet = wallet
1612 self.network = network
1613 self.was_updated = True
1614 self.running = False
1615 self.lock = threading.Lock()
1616 self.queue = Queue.Queue()
1619 with self.lock: self.running = False
1621 def is_running(self):
1622 with self.lock: return self.running
1625 def subscribe_to_addresses(self, addresses):
1627 for addr in addresses:
1628 messages.append(('blockchain.address.subscribe', [addr]))
1629 self.network.subscribe( messages, lambda i,r: self.queue.put(r))
1636 while self.is_running():
1638 if not self.network.is_connected():
1639 print_error("synchronizer: waiting for interface")
1640 self.network.wait_until_connected()
1642 self.run_interface(self.network.interface)
1645 def run_interface(self, interface):
1647 print_error("synchronizer: connected to", interface.server)
1651 requested_histories = {}
1653 # request any missing transactions
1654 for history in self.wallet.history.values():
1655 if history == ['*']: continue
1656 for tx_hash, tx_height in history:
1657 if self.wallet.transactions.get(tx_hash) is None and (tx_hash, tx_height) not in missing_tx:
1658 missing_tx.append( (tx_hash, tx_height) )
1661 print_error("missing tx", missing_tx)
1664 self.subscribe_to_addresses(self.wallet.addresses(True))
1666 while self.is_running():
1667 # 1. create new addresses
1668 new_addresses = self.wallet.synchronize()
1670 # request missing addresses
1672 self.subscribe_to_addresses(new_addresses)
1674 # request missing transactions
1675 for tx_hash, tx_height in missing_tx:
1676 if (tx_hash, tx_height) not in requested_tx:
1677 interface.send([ ('blockchain.transaction.get',[tx_hash, tx_height]) ], lambda i,r: self.queue.put(r))
1678 requested_tx.append( (tx_hash, tx_height) )
1681 # detect if situation has changed
1682 if interface.is_up_to_date() and self.queue.empty():
1683 if not self.wallet.is_up_to_date():
1684 self.wallet.set_up_to_date(True)
1685 self.was_updated = True
1687 if self.wallet.is_up_to_date():
1688 self.wallet.set_up_to_date(False)
1689 self.was_updated = True
1691 if self.was_updated:
1692 self.wallet.network.trigger_callback('updated')
1693 self.was_updated = False
1697 r = self.queue.get(block=True, timeout=1)
1701 if interface != self.network.interface:
1707 # 3. handle response
1708 method = r['method']
1709 params = r['params']
1710 result = r.get('result')
1711 error = r.get('error')
1716 if method == 'blockchain.address.subscribe':
1718 if self.wallet.get_status(self.wallet.get_history(addr)) != result:
1719 if requested_histories.get(addr) is None:
1720 interface.send([('blockchain.address.get_history', [addr])], lambda i,r:self.queue.put(r))
1721 requested_histories[addr] = result
1723 elif method == 'blockchain.address.get_history':
1725 print_error("receiving history", addr, result)
1727 assert requested_histories.pop(addr) == '*'
1728 self.wallet.receive_history_callback(addr, result)
1731 # check that txids are unique
1734 tx_hash = item['tx_hash']
1735 if tx_hash not in txids:
1736 txids.append(tx_hash)
1737 hist.append( (tx_hash, item['height']) )
1739 if len(hist) != len(result):
1740 raise BaseException("error: server sent history with non-unique txid", result)
1742 # check that the status corresponds to what was announced
1743 rs = requested_histories.pop(addr)
1744 if self.wallet.get_status(hist) != rs:
1745 raise BaseException("error: status mismatch: %s"%addr)
1747 # store received history
1748 self.wallet.receive_history_callback(addr, hist)
1750 # request transactions that we don't have
1751 for tx_hash, tx_height in hist:
1752 if self.wallet.transactions.get(tx_hash) is None:
1753 if (tx_hash, tx_height) not in requested_tx and (tx_hash, tx_height) not in missing_tx:
1754 missing_tx.append( (tx_hash, tx_height) )
1756 elif method == 'blockchain.transaction.get':
1758 tx_height = params[1]
1759 assert tx_hash == hash_encode(Hash(result.decode('hex')))
1760 tx = Transaction(result)
1761 self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
1762 self.was_updated = True
1763 requested_tx.remove( (tx_hash, tx_height) )
1764 print_error("received tx:", tx_hash, len(tx.raw))
1767 print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result) )
1769 if self.was_updated and not requested_tx:
1770 self.wallet.network.trigger_callback('updated')
1771 self.wallet.network.trigger_callback("new_transaction") # Updated gets called too many times from other places as well; if we use that signal we get the notification three times
1773 self.was_updated = False