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, user_dir, format_satoshis
37 _ud = re.compile('%([0-9a-hA-H]{2})', re.MULTILINE)
38 urldecode = lambda x: _ud.sub(lambda m: chr(int(m.group(1), 16)), x)
41 EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
42 DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))
44 def pw_encode(s, password):
46 secret = Hash(password)
47 return EncodeAES(secret, s)
51 def pw_decode(s, password):
52 if password is not None:
53 secret = Hash(password)
55 d = DecodeAES(secret, s)
57 raise BaseException('Invalid password')
66 from version import ELECTRUM_VERSION, SEED_VERSION
70 def __init__(self, config={}):
73 self.electrum_version = ELECTRUM_VERSION
74 self.gap_limit_for_change = 3 # constant
77 self.seed_version = config.get('seed_version', SEED_VERSION)
78 self.gap_limit = config.get('gap_limit', 5)
79 self.use_change = config.get('use_change',True)
80 self.fee = int(config.get('fee',100000))
81 self.num_zeros = int(config.get('num_zeros',0))
82 self.use_encryption = config.get('use_encryption', False)
83 self.seed = config.get('seed', '') # encrypted
84 self.labels = config.get('labels', {})
85 self.aliases = config.get('aliases', {}) # aliases for addresses
86 self.authorities = config.get('authorities', {}) # trusted addresses
87 self.frozen_addresses = config.get('frozen_addresses',[])
88 self.prioritized_addresses = config.get('prioritized_addresses',[])
89 self.receipts = config.get('receipts',{}) # signed URIs
90 self.addressbook = config.get('contacts', [])
91 self.imported_keys = config.get('imported_keys',{})
92 self.history = config.get('addr_history',{}) # address -> list(txid, height)
93 self.tx_height = config.get('tx_height',{})
94 self.requested_amounts = config.get('requested_amounts',{})
95 self.accounts = config.get('accounts', {}) # this should not include public keys
98 self.sequences[0] = DeterministicSequence(self.config.get('master_public_key'))
100 if self.accounts.get(0) is None:
101 self.accounts[0] = { 0:[], 1:[], 'name':'Main account' }
103 self.transactions = {}
104 tx = config.get('transactions',{})
106 for k,v in tx.items(): self.transactions[k] = Transaction(v)
108 print_msg("Warning: Cannot deserialize transactions. skipping")
112 self.plugin_hooks = {}
115 self.prevout_values = {} # my own transaction outputs
116 self.spent_outputs = []
117 self.receipt = None # next receipt
123 # there is a difference between wallet.up_to_date and interface.is_up_to_date()
124 # interface.is_up_to_date() returns true when all requests have been answered and processed
125 # wallet.up_to_date is true when the wallet is synchronized (stronger requirement)
127 self.up_to_date = False
128 self.lock = threading.Lock()
129 self.tx_event = threading.Event()
131 if self.seed_version != SEED_VERSION:
132 raise ValueError("This wallet seed is deprecated. Please run upgrade.py for a diagnostic.")
134 for tx_hash in self.transactions.keys():
135 self.update_tx_outputs(tx_hash)
139 def set_hook(self, name, callback):
140 h = self.plugin_hooks.get(name, [])
142 self.plugin_hooks[name] = h
144 def unset_hook(self, name, callback):
145 h = self.plugin_hooks.get(name,[])
146 if callback in h: h.remove(callback)
147 self.plugin_hooks[name] = h
149 def init_plugins(self, plugins):
150 self.plugins = plugins
156 print_msg("Error:cannot initialize plugin",p)
157 traceback.print_exc(file=sys.stdout)
160 def set_up_to_date(self,b):
161 with self.lock: self.up_to_date = b
163 def is_up_to_date(self):
164 with self.lock: return self.up_to_date
167 self.up_to_date = False
168 self.interface.poke('synchronizer')
169 while not self.is_up_to_date(): time.sleep(0.1)
171 def import_key(self, sec, password):
173 seed = self.decode_seed(password)
174 address = address_from_private_key(sec)
176 if self.is_mine(address):
177 raise BaseException('Address already in wallet')
179 # store the originally requested keypair into the imported keys table
180 self.imported_keys[address] = pw_encode(sec, password )
184 def init_seed(self, seed):
185 if self.seed: raise BaseException("a seed exists")
187 seed = random_seed(128)
189 self.config.set_key('seed', self.seed, True)
190 self.config.set_key('seed_version', self.seed_version, True)
192 mpk = DeterministicSequence.mpk_from_seed(self.seed)
193 self.config.set_key('master_public_key', mpk, True)
194 self.sequences[0] = DeterministicSequence(mpk)
196 self.accounts[0] = { 0:[], 1:[], 'name':'Main account' }
197 self.config.set_key('accounts', self.accounts, True)
201 def addresses(self, include_change = False):
202 o = self.imported_keys.keys()
203 for a in self.accounts.values():
205 if include_change: o += a[1]
209 def is_mine(self, address):
210 return address in self.addresses(True)
212 def is_change(self, address):
213 #return address in self.change_addresses
216 def get_master_public_key(self):
217 return self.sequence.master_public_key
219 def get_address_index(self, address):
220 if address in self.imported_keys.keys():
221 raise BaseException("imported key")
222 for account in self.accounts.keys():
223 for for_change in [0,1]:
224 addresses = self.accounts[account][for_change]
225 for addr in addresses:
227 return account, for_change, addresses.index(addr)
228 raise BaseException("not found")
231 def get_public_key(self, address):
232 account, n, for_change = self.get_address_index(address)
233 return self.sequences[account].get_pubkey(n, for_change)
236 def decode_seed(self, password):
237 seed = pw_decode(self.seed, password)
238 self.sequences[0].check_seed(seed)
241 def get_private_key(self, address, password):
242 return self.get_private_keys([address], password).get(address)
244 def get_private_keys(self, addresses, password):
245 # decode seed in any case, in order to test the password
246 seed = self.decode_seed(password)
247 secexp = self.sequences[0].stretch_key(seed)
249 for address in addresses:
250 if address in self.imported_keys.keys():
251 out[address] = pw_decode( self.imported_keys[address], password )
253 account, for_change, n = self.get_address_index(address)
255 out[address] = self.sequences[0].get_private_key_from_stretched_exponent(n, for_change, secexp)
259 def signrawtransaction(self, tx, input_info, private_keys, password):
260 unspent_coins = self.get_unspent_coins()
261 seed = self.decode_seed(password)
263 # convert private_keys to dict
265 for sec in private_keys:
266 address = address_from_private_key(sec)
270 for txin in tx.inputs:
271 # convert to own format
272 txin['tx_hash'] = txin['prevout_hash']
273 txin['index'] = txin['prevout_n']
275 for item in input_info:
276 if item.get('txid') == txin['tx_hash'] and item.get('vout') == txin['index']:
277 txin['raw_output_script'] = item['scriptPubKey']
278 txin['redeemScript'] = item.get('redeemScript')
279 txin['electrumKeyID'] = item.get('electrumKeyID')
282 for item in unspent_coins:
283 if txin['tx_hash'] == item['tx_hash'] and txin['index'] == item['index']:
284 txin['raw_output_script'] = item['raw_output_script']
287 # if neither, we might want to get it from the server..
291 if txin.get('electrumKeyID'):
292 account, for_change, n = txin.get('electrumKeyID')
293 sec = self.sequences[account].get_private_key(n, for_change, seed)
294 addr = self.sequences[account].get_address(n, for_change)
295 txin['address'] = addr
296 private_keys[addr] = sec
298 elif txin.get("redeemScript"):
299 txin['address'] = hash_160_to_bc_address(hash_160(txin.get("redeemScript").decode('hex')), 5)
301 elif txin.get("raw_output_script"):
303 addr = deserialize.get_address_from_output_script(txin.get("raw_output_script").decode('hex'))
304 sec = self.get_private_key(addr, password)
306 private_keys[addr] = sec
307 txin['address'] = addr
309 tx.sign( private_keys )
311 def sign_message(self, address, message, password):
312 sec = self.get_private_key(address, password)
313 key = regenerate_key(sec)
314 compressed = is_compressed(sec)
315 return key.sign_message(message, compressed, address)
318 def create_new_address(self, account, for_change):
319 addresses = self.accounts[account][for_change]
321 address = self.get_new_address( account, for_change, n)
322 self.accounts[account][for_change].append(address)
323 self.history[address] = []
327 def get_new_address(self, account, for_change, n):
328 return self.sequences[account].get_address(for_change, n)
332 def change_gap_limit(self, value):
333 if value >= self.gap_limit:
334 self.gap_limit = value
336 self.interface.poke('synchronizer')
339 elif value >= self.min_acceptable_gap():
340 for key, account in self.accounts.items():
341 addresses = account[0]
342 k = self.num_unused_trailing_addresses(addresses)
343 n = len(addresses) - k + value
344 addresses = addresses[0:n]
345 self.accounts[key][0] = addresses
347 self.gap_limit = value
353 def num_unused_trailing_addresses(self, addresses):
355 for a in addresses[::-1]:
356 if self.history.get(a):break
360 def min_acceptable_gap(self):
361 # fixme: this assumes wallet is synchronized
365 for account in self.accounts.values():
366 addresses = account[0]
367 k = self.num_unused_trailing_addresses(addresses)
368 for a in addresses[0:-k]:
369 if self.history.get(a):
373 if n > nmax: nmax = n
377 def address_is_old(self, address):
379 h = self.history.get(address, [])
382 for tx_hash, tx_height in h:
386 tx_age = self.verifier.height - tx_height + 1
392 def synchronize_sequence(self, account, for_change):
393 limit = self.gap_limit_for_change if for_change else self.gap_limit
394 addresses = self.accounts[account][for_change]
397 if len(addresses) < limit:
398 new_addresses.append( self.create_new_address(account, for_change) )
400 if map( lambda a: self.address_is_old(a), addresses[-limit:] ) == limit*[False]:
403 new_addresses.append( self.create_new_address(account, for_change) )
407 def synchronize_account(self, account):
409 new += self.synchronize_sequence(account, 0)
410 new += self.synchronize_sequence(account, 1)
413 def synchronize(self):
415 for account in self.accounts.keys():
416 new += self.synchronize_account(account)
421 return self.history.values() != [[]] * len(self.history)
424 def fill_addressbook(self):
425 for tx_hash, tx in self.transactions.items():
426 is_send, _, _ = self.get_tx_value(tx)
428 for addr, v in tx.outputs:
429 if not self.is_mine(addr) and addr not in self.addressbook:
430 self.addressbook.append(addr)
432 # self.update_tx_labels()
435 def get_address_flags(self, addr):
436 flags = "C" if self.is_change(addr) else "I" if addr in self.imported_keys.keys() else "-"
437 flags += "F" if addr in self.frozen_addresses else "P" if addr in self.prioritized_addresses else "-"
441 def get_tx_value(self, tx, addresses=None):
442 if addresses is None: addresses = self.addresses(True)
443 return tx.get_value(addresses, self.prevout_values)
446 def get_tx_details(self, tx_hash):
448 if not tx_hash: return ''
449 tx = self.transactions.get(tx_hash)
450 is_mine, v, fee = self.get_tx_value(tx)
451 conf, timestamp = self.verifier.get_confirmations(tx_hash)
454 time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
458 inputs = map(lambda x: x.get('address'), tx.inputs)
459 outputs = map(lambda x: x.get('address'), tx.d['outputs'])
460 tx_details = "Transaction Details" +"\n\n" \
461 + "Transaction ID:\n" + tx_hash + "\n\n" \
462 + "Status: %d confirmations\n"%conf
465 tx_details += "Amount sent: %s\n"% format_satoshis(v-fee, False) \
466 + "Transaction fee: %s\n"% format_satoshis(fee, False)
468 tx_details += "Amount sent: %s\n"% format_satoshis(v, False) \
469 + "Transaction fee: unknown\n"
471 tx_details += "Amount received: %s\n"% format_satoshis(v, False) \
473 tx_details += "Date: %s\n\n"%time_str \
474 + "Inputs:\n-"+ '\n-'.join(inputs) + "\n\n" \
475 + "Outputs:\n-"+ '\n-'.join(outputs)
477 r = self.receipts.get(tx_hash)
479 tx_details += "\n_______________________________________" \
480 + '\n\nSigned URI: ' + r[2] \
481 + "\n\nSigned by: " + r[0] \
482 + '\n\nSignature: ' + r[1]
487 def update_tx_outputs(self, tx_hash):
488 tx = self.transactions.get(tx_hash)
490 for item in tx.outputs:
492 key = tx_hash+ ':%d'%i
494 self.prevout_values[key] = value
497 for item in tx.inputs:
498 if self.is_mine(item.get('address')):
499 key = item['prevout_hash'] + ':%d'%item['prevout_n']
500 self.spent_outputs.append(key)
503 def get_addr_balance(self, address):
504 assert self.is_mine(address)
505 h = self.history.get(address,[])
506 if h == ['*']: return 0,0
508 received_coins = [] # list of coins received at address
510 for tx_hash, tx_height in h:
511 tx = self.transactions.get(tx_hash)
514 for item in tx.outputs:
517 key = tx_hash + ':%d'%i
518 received_coins.append(key)
521 for tx_hash, tx_height in h:
522 tx = self.transactions.get(tx_hash)
526 for item in tx.inputs:
527 addr = item.get('address')
529 key = item['prevout_hash'] + ':%d'%item['prevout_n']
530 value = self.prevout_values.get( key )
531 if key in received_coins:
535 for item in tx.outputs:
537 key = tx_hash + ':%d'%i
548 def get_account_addresses(self, a):
549 ac = self.accounts[a]
552 def get_imported_balance(self):
554 for addr in self.imported_keys.keys():
555 c, u = self.get_addr_balance(addr)
560 def get_account_balance(self, account):
562 for addr in self.get_account_addresses(account):
563 c, u = self.get_addr_balance(addr)
568 def get_balance(self):
570 for a in self.accounts.keys():
571 c, u = self.get_account_balance(a)
574 c, u = self.get_imported_balance()
580 def get_unspent_coins(self, domain=None):
582 if domain is None: domain = self.addresses(True)
584 h = self.history.get(addr, [])
585 if h == ['*']: continue
586 for tx_hash, tx_height in h:
587 tx = self.transactions.get(tx_hash)
588 for output in tx.d.get('outputs'):
589 if output.get('address') != addr: continue
590 key = tx_hash + ":%d" % output.get('index')
591 if key in self.spent_outputs: continue
592 output['tx_hash'] = tx_hash
598 def choose_tx_inputs( self, amount, fixed_fee, from_addr = None ):
599 """ todo: minimize tx size """
601 fee = self.fee if fixed_fee is None else fixed_fee
604 prioritized_coins = []
605 domain = [from_addr] if from_addr else self.addresses(True)
606 for i in self.frozen_addresses:
607 if i in domain: domain.remove(i)
609 for i in self.prioritized_addresses:
610 if i in domain: domain.remove(i)
612 coins = self.get_unspent_coins(domain)
613 prioritized_coins = self.get_unspent_coins(self.prioritized_addresses)
616 coins = prioritized_coins + coins
619 addr = item.get('address')
620 v = item.get('value')
623 inputs.append( item )
624 fee = self.fee*len(inputs) if fixed_fee is None else fixed_fee
625 if total >= amount + fee: break
627 #print "not enough funds: %s %s"%(format_satoshis(total), format_satoshis(fee))
629 return inputs, total, fee
631 def add_tx_change( self, outputs, amount, fee, total, change_addr=None ):
632 change_amount = total - ( amount + fee )
633 if change_amount != 0:
634 # normally, the update thread should ensure that the last change address is unused
636 change_addresses = self.accounts[0][1]
637 change_addr = change_addresses[-self.gap_limit_for_change]
638 # Insert the change output at a random position in the outputs
639 posn = random.randint(0, len(outputs))
640 outputs[posn:posn] = [( change_addr, change_amount)]
644 def get_history(self, address):
646 return self.history.get(address)
648 def get_status(self, h):
649 if not h: return None
650 if h == ['*']: return '*'
652 for tx_hash, height in h:
653 status += tx_hash + ':%d:' % height
654 return hashlib.sha256( status ).digest().encode('hex')
658 def receive_tx_callback(self, tx_hash, tx, tx_height):
660 if not self.check_new_tx(tx_hash, tx):
661 raise BaseException("error: received transaction is not consistent with history"%tx_hash)
664 self.transactions[tx_hash] = tx
665 self.tx_height[tx_hash] = tx_height
667 #tx_height = tx.get('height')
668 if self.verifier and tx_height>0:
669 self.verifier.add(tx_hash, tx_height)
671 self.update_tx_outputs(tx_hash)
676 def receive_history_callback(self, addr, hist):
678 if not self.check_new_history(addr, hist):
679 raise BaseException("error: received history for %s is not consistent with known transactions"%addr)
682 self.history[addr] = hist
686 for tx_hash, tx_height in hist:
688 # add it in case it was previously unconfirmed
689 if self.verifier: self.verifier.add(tx_hash, tx_height)
690 # set the height in case it changed
691 txh = self.tx_height.get(tx_hash)
692 if txh is not None and txh != tx_height:
693 print_error( "changing height for tx", tx_hash )
694 self.tx_height[tx_hash] = tx_height
697 def get_tx_history(self):
699 history = self.transactions.items()
700 history.sort(key = lambda x: self.tx_height.get(x[0]) if self.tx_height.get(x[0]) else 1e12)
704 for tx_hash, tx in history:
705 is_mine, v, fee = self.get_tx_value(tx)
706 if v is not None: balance += v
707 c, u = self.get_balance()
710 v_str = format_satoshis( c+u - balance, True, self.num_zeros)
711 result.append( ('', 1000, 0, c+u-balance, None, c+u-balance, None ) )
713 balance = c + u - balance
714 for tx_hash, tx in history:
715 conf, timestamp = self.verifier.get_confirmations(tx_hash) if self.verifier else (None, None)
716 is_mine, value, fee = self.get_tx_value(tx)
717 if value is not None:
720 result.append( (tx_hash, conf, is_mine, value, fee, balance, timestamp) )
725 def get_label(self, tx_hash):
726 label = self.labels.get(tx_hash)
727 is_default = (label == '') or (label is None)
728 if is_default: label = self.get_default_label(tx_hash)
729 return label, is_default
732 def get_default_label(self, tx_hash):
733 tx = self.transactions.get(tx_hash)
736 is_mine, _, _ = self.get_tx_value(tx)
740 if not self.is_mine(o_addr):
742 default_label = self.labels[o_addr]
744 default_label = o_addr
748 if self.is_mine(o_addr) and not self.is_change(o_addr):
753 if self.is_mine(o_addr):
759 dest_label = self.labels.get(o_addr)
761 default_label = self.labels[o_addr]
763 default_label = o_addr
768 def mktx(self, outputs, password, fee=None, change_addr=None, from_addr= None):
770 for address, x in outputs:
771 assert is_valid(address)
773 amount = sum( map(lambda x:x[1], outputs) )
774 inputs, total, fee = self.choose_tx_inputs( amount, fee, from_addr )
776 raise ValueError("Not enough funds")
778 if not self.use_change and not change_addr:
779 change_addr = inputs[-1]['address']
780 print_error( "Sending change to", change_addr )
781 outputs = self.add_tx_change(outputs, amount, fee, total, change_addr)
783 tx = Transaction.from_io(inputs, outputs)
786 for i in range(len(tx.inputs)):
788 account, is_change, n = self.get_address_index(txin['address'])
789 pk_addr, redeemScript = self.sequences[account].get_input_info(is_change, n)
790 txin['redeemScript'] = redeemScript
791 txin['electrumKeyID'] = (account, is_change, n) # used by the server to find the key
792 pk_addresses.append(pk_addr)
794 # get all private keys at once.
795 private_keys = self.get_private_keys(pk_addresses, password)
796 tx.sign(private_keys)
798 for address, x in outputs:
799 if address not in self.addressbook and not self.is_mine(address):
800 self.addressbook.append(address)
806 def sendtx(self, tx):
810 return self.receive_tx(h)
812 def send_tx(self, tx):
814 self.tx_event.clear()
815 self.interface.send([('blockchain.transaction.broadcast', [str(tx)])], 'synchronizer')
818 def receive_tx(self,tx_hash):
821 return False, "error: " + out
823 self.receipts[tx_hash] = self.receipt
828 def read_alias(self, alias):
829 # this might not be the right place for this function.
832 m1 = re.match('([\w\-\.]+)@((\w[\w\-]+\.)+[\w\-]+)', alias)
833 m2 = re.match('((\w[\w\-]+\.)+[\w\-]+)', alias)
835 url = 'https://' + m1.group(2) + '/bitcoin.id/' + m1.group(1)
837 url = 'https://' + alias + '/bitcoin.id'
841 lines = urllib.urlopen(url).readlines()
846 line = lines[0].strip().split(':')
849 target = signing_addr = line[0]
851 target, auth_name, signing_addr, signature = line
852 msg = "alias:%s:%s:%s"%(alias,target,auth_name)
854 EC_KEY.verify_message(signing_addr, signature, msg)
856 # other lines are signed updates
857 for line in lines[1:]:
859 if not line: continue
860 line = line.split(':')
863 target, signature = line
864 EC_KEY.verify_message(previous, signature, "alias:%s:%s"%(alias,target))
866 if not is_valid(target):
867 raise ValueError("Invalid bitcoin address")
869 return target, signing_addr, auth_name
871 def update_password(self, seed, old_password, new_password):
872 if new_password == '': new_password = None
873 self.use_encryption = (new_password != None)
874 self.seed = pw_encode( seed, new_password)
875 self.config.set_key('seed', self.seed, True)
876 for k in self.imported_keys.keys():
877 a = self.imported_keys[k]
878 b = pw_decode(a, old_password)
879 c = pw_encode(b, new_password)
880 self.imported_keys[k] = c
883 def get_alias(self, alias, interactive = False, show_message=None, question = None):
885 target, signing_address, auth_name = self.read_alias(alias)
886 except BaseException, e:
887 # raise exception if verify fails (verify the chain)
889 show_message("Alias error: " + str(e))
892 print target, signing_address, auth_name
894 if auth_name is None:
895 a = self.aliases.get(alias)
897 msg = "Warning: the alias '%s' is self-signed.\nThe signing address is %s.\n\nDo you want to add this alias to your list of contacts?"%(alias,signing_address)
898 if interactive and question( msg ):
899 self.aliases[alias] = (signing_address, target)
903 if signing_address != a[0]:
904 msg = "Warning: the key of alias '%s' has changed since your last visit! It is possible that someone is trying to do something nasty!!!\nDo you accept to change your trusted key?"%alias
905 if interactive and question( msg ):
906 self.aliases[alias] = (signing_address, target)
910 if signing_address not in self.authorities.keys():
911 msg = "The alias: '%s' links to %s\n\nWarning: this alias was signed by an unknown key.\nSigning authority: %s\nSigning address: %s\n\nDo you want to add this key to your list of trusted keys?"%(alias,target,auth_name,signing_address)
912 if interactive and question( msg ):
913 self.authorities[signing_address] = auth_name
918 self.aliases[alias] = (signing_address, target)
923 def parse_url(self, url, show_message, question):
924 o = url[8:].split('?')
927 params = o[1].split('&')
931 amount = label = message = signature = identity = ''
935 if k == 'amount': amount = uv
936 elif k == 'message': message = uv
937 elif k == 'label': label = uv
938 elif k == 'signature':
939 identity, signature = uv.split(':')
940 url = url.replace('&%s=%s'%(k,v),'')
944 if label and self.labels.get(address) != label:
945 if question('Give label "%s" to address %s ?'%(label,address)):
946 if address not in self.addressbook and not self.is_mine(address):
947 self.addressbook.append(address)
948 self.labels[address] = label
951 if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', identity):
952 signing_address = self.get_alias(identity, True, show_message, question)
953 elif is_valid(identity):
954 signing_address = identity
956 signing_address = None
957 if not signing_address:
960 EC_KEY.verify_message(signing_address, signature, url )
961 self.receipt = (signing_address, signature, url)
963 show_message('Warning: the URI contains a bad signature.\nThe identity of the recipient cannot be verified.')
964 address = amount = label = identity = message = ''
966 if re.match('^(|([\w\-\.]+)@)((\w[\w\-]+\.)+[\w\-]+)$', address):
967 payto_address = self.get_alias(address, True, show_message, question)
969 address = address + ' <' + payto_address + '>'
971 return address, amount, label, message, signature, identity, url
975 def freeze(self,addr):
976 if self.is_mine(addr) and addr not in self.frozen_addresses:
977 self.unprioritize(addr)
978 self.frozen_addresses.append(addr)
979 self.config.set_key('frozen_addresses', self.frozen_addresses, True)
984 def unfreeze(self,addr):
985 if self.is_mine(addr) and addr in self.frozen_addresses:
986 self.frozen_addresses.remove(addr)
987 self.config.set_key('frozen_addresses', self.frozen_addresses, True)
992 def prioritize(self,addr):
993 if is_mine(addr) and addr not in self.prioritized_addresses:
995 self.prioritized_addresses.append(addr)
996 self.config.set_key('prioritized_addresses', self.prioritized_addresses, True)
1001 def unprioritize(self,addr):
1002 if is_mine(addr) and addr in self.prioritized_addresses:
1003 self.prioritized_addresses.remove(addr)
1004 self.config.set_key('prioritized_addresses', self.prioritized_addresses, True)
1011 for k,v in self.transactions.items():
1015 'use_encryption': self.use_encryption,
1016 'use_change': self.use_change,
1018 'accounts': self.accounts,
1019 'addr_history': self.history,
1020 'labels': self.labels,
1021 'contacts': self.addressbook,
1022 'imported_keys': self.imported_keys,
1023 'aliases': self.aliases,
1024 'authorities': self.authorities,
1025 'receipts': self.receipts,
1026 'num_zeros': self.num_zeros,
1027 'frozen_addresses': self.frozen_addresses,
1028 'prioritized_addresses': self.prioritized_addresses,
1029 'gap_limit': self.gap_limit,
1031 'tx_height': self.tx_height,
1032 'requested_amounts': self.requested_amounts,
1034 for k, v in s.items():
1035 self.config.set_key(k,v)
1038 def set_verifier(self, verifier):
1039 self.verifier = verifier
1041 # review stored transactions and send them to the verifier
1042 # (they are not necessarily in the history, because history items might have have been pruned)
1043 for tx_hash, tx in self.transactions.items():
1044 tx_height = self.tx_height[tx_hash]
1046 print_error( "skipping", tx_hash, tx_height )
1050 self.verifier.add(tx_hash, tx_height)
1052 # review transactions that are in the history
1053 for addr, hist in self.history.items():
1054 if hist == ['*']: continue
1055 for tx_hash, tx_height in hist:
1057 # add it in case it was previously unconfirmed
1058 self.verifier.add(tx_hash, tx_height)
1059 # set the height in case it changed
1060 txh = self.tx_height.get(tx_hash)
1061 if txh is not None and txh != tx_height:
1062 print_error( "changing height for tx", tx_hash )
1063 self.tx_height[tx_hash] = tx_height
1068 def check_new_history(self, addr, hist):
1070 # check that all tx in hist are relevant
1072 for tx_hash, height in hist:
1073 tx = self.transactions.get(tx_hash)
1075 if not tx.has_address(addr):
1078 # check that we are not "orphaning" a transaction
1079 old_hist = self.history.get(addr,[])
1080 if old_hist == ['*']: return True
1082 for tx_hash, height in old_hist:
1083 if tx_hash in map(lambda x:x[0], hist): continue
1085 for _addr, _hist in self.history.items():
1086 if _addr == addr: continue
1087 if _hist == ['*']: continue
1088 _tx_hist = map(lambda x:x[0], _hist)
1089 if tx_hash in _tx_hist:
1094 tx = self.transactions.get(tx_hash)
1095 # tx might not be there
1099 if self.tx_height.get(tx_hash):
1102 print_error("new history is orphaning transaction:", tx_hash)
1103 # check that all outputs are not mine, request histories
1105 for o in tx.get('outputs'):
1106 _addr = o.get('address')
1107 # assert not self.is_mine(_addr)
1108 ext_requests.append( ('blockchain.address.get_history', [_addr]) )
1110 ext_h = self.interface.synchronous_get(ext_requests)
1113 if h == ['*']: continue
1115 if item.get('tx_hash') == tx_hash:
1116 height = item.get('height')
1117 self.tx_height[tx_hash] = height
1119 print_error("found height for", tx_hash, height)
1120 self.verifier.add(tx_hash, height)
1122 print_error("removing orphaned tx from history", tx_hash)
1123 self.transactions.pop(tx_hash)
1129 def check_new_tx(self, tx_hash, tx):
1130 # 1 check that tx is referenced in addr_history.
1132 for addr, hist in self.history.items():
1133 if hist == ['*']:continue
1134 for txh, height in hist:
1136 addresses.append(addr)
1141 # 2 check that referencing addresses are in the tx
1142 for addr in addresses:
1143 if not tx.has_address(addr):
1151 class WalletSynchronizer(threading.Thread):
1154 def __init__(self, wallet, config):
1155 threading.Thread.__init__(self)
1157 self.wallet = wallet
1158 self.interface = self.wallet.interface
1159 self.interface.register_channel('synchronizer')
1160 self.wallet.interface.register_callback('connected', lambda: self.wallet.set_up_to_date(False))
1161 self.wallet.interface.register_callback('connected', lambda: self.interface.send([('server.banner',[])],'synchronizer') )
1162 self.was_updated = True
1163 self.running = False
1164 self.lock = threading.Lock()
1167 with self.lock: self.running = False
1168 self.interface.poke('synchronizer')
1170 def is_running(self):
1171 with self.lock: return self.running
1173 def synchronize_wallet(self):
1174 new_addresses = self.wallet.synchronize()
1176 self.subscribe_to_addresses(new_addresses)
1177 self.wallet.up_to_date = False
1180 if not self.interface.is_up_to_date('synchronizer'):
1181 if self.wallet.is_up_to_date():
1182 self.wallet.set_up_to_date(False)
1183 self.was_updated = True
1186 self.wallet.set_up_to_date(True)
1187 self.was_updated = True
1190 def subscribe_to_addresses(self, addresses):
1192 for addr in addresses:
1193 messages.append(('blockchain.address.subscribe', [addr]))
1194 self.interface.send( messages, 'synchronizer')
1198 with self.lock: self.running = True
1202 requested_histories = {}
1204 # request any missing transactions
1205 for history in self.wallet.history.values():
1206 if history == ['*']: continue
1207 for tx_hash, tx_height in history:
1208 if self.wallet.transactions.get(tx_hash) is None and (tx_hash, tx_height) not in missing_tx:
1209 missing_tx.append( (tx_hash, tx_height) )
1210 print_error("missing tx", missing_tx)
1212 # wait until we are connected, in case the user is not connected
1213 while not self.interface.is_connected:
1216 # request banner, because 'connected' event happens before this thread is started
1217 self.interface.send([('server.banner',[])],'synchronizer')
1220 self.subscribe_to_addresses(self.wallet.addresses(True))
1222 while self.is_running():
1223 # 1. send new requests
1224 self.synchronize_wallet()
1226 for tx_hash, tx_height in missing_tx:
1227 if (tx_hash, tx_height) not in requested_tx:
1228 self.interface.send([ ('blockchain.transaction.get',[tx_hash, tx_height]) ], 'synchronizer')
1229 requested_tx.append( (tx_hash, tx_height) )
1232 if self.was_updated:
1233 self.interface.trigger_callback('updated')
1234 self.was_updated = False
1237 r = self.interface.get_response('synchronizer')
1239 # poke sends None. (needed during stop)
1242 # 3. handle response
1243 method = r['method']
1244 params = r['params']
1245 result = r.get('result')
1246 error = r.get('error')
1251 if method == 'blockchain.address.subscribe':
1253 if self.wallet.get_status(self.wallet.get_history(addr)) != result:
1254 if requested_histories.get(addr) is None:
1255 self.interface.send([('blockchain.address.get_history', [addr])], 'synchronizer')
1256 requested_histories[addr] = result
1258 elif method == 'blockchain.address.get_history':
1260 print_error("receiving history", addr, result)
1262 assert requested_histories.pop(addr) == '*'
1263 self.wallet.receive_history_callback(addr, result)
1266 # check that txids are unique
1269 tx_hash = item['tx_hash']
1270 if tx_hash not in txids:
1271 txids.append(tx_hash)
1272 hist.append( (tx_hash, item['height']) )
1274 if len(hist) != len(result):
1275 raise BaseException("error: server sent history with non-unique txid", result)
1277 # check that the status corresponds to what was announced
1278 rs = requested_histories.pop(addr)
1279 if self.wallet.get_status(hist) != rs:
1280 raise BaseException("error: status mismatch: %s"%addr)
1282 # store received history
1283 self.wallet.receive_history_callback(addr, hist)
1285 # request transactions that we don't have
1286 for tx_hash, tx_height in hist:
1287 if self.wallet.transactions.get(tx_hash) is None:
1288 if (tx_hash, tx_height) not in requested_tx and (tx_hash, tx_height) not in missing_tx:
1289 missing_tx.append( (tx_hash, tx_height) )
1291 elif method == 'blockchain.transaction.get':
1293 tx_height = params[1]
1294 assert tx_hash == hash_encode(Hash(result.decode('hex')))
1295 tx = Transaction(result)
1296 self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
1297 self.was_updated = True
1298 requested_tx.remove( (tx_hash, tx_height) )
1299 print_error("received tx:", tx)
1301 elif method == 'blockchain.transaction.broadcast':
1302 self.wallet.tx_result = result
1303 self.wallet.tx_event.set()
1305 elif method == 'server.banner':
1306 self.wallet.banner = result
1307 self.interface.trigger_callback('banner')
1309 print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result) )
1311 if self.was_updated and not requested_tx:
1312 self.interface.trigger_callback('updated')
1313 self.was_updated = False