def parse_TxIn(vds):
d = {}
d['prevout_hash'] = hash_encode(vds.read_bytes(32))
d['prevout_n'] = vds.read_uint32()
scriptSig = vds.read_bytes(vds.read_compact_size())
d['sequence'] = vds.read_uint32()
d['address'] = get_address_from_input_script(scriptSig)
return d
def get_hash(self):
vds = BCDataStream()
vds.write_string(self.proposal_name)
vds.write_string(self.proposal_url)
vds.write_int32(self.start_block)
vds.write_int32(self.end_block)
vds.write_int64(self.payment_amount)
vds.write_string(Transaction.pay_script(bitcoin.TYPE_ADDRESS, self.address).decode('hex'))
return bitcoin.hash_encode(bitcoin.Hash(vds.input))
def parse_TxIn(vds):
d = {}
d['prevout_hash'] = hash_encode(vds.read_bytes(32))
d['prevout_n'] = vds.read_uint32()
scriptSig = vds.read_bytes(vds.read_compact_size())
d['sequence'] = vds.read_uint32()
d['address'] = extract_public_key(scriptSig)
#d['script'] = decode_script(scriptSig)
return d
def serialize_for_sig(self, update_time=False):
"""Serialize the message for signing."""
if update_time:
self.sig_time = int(time.time())
s = str(self.addr)
s += str(self.sig_time)
if self.protocol_version < 70201:
# Decode the hex-encoded bytes for our keys.
s += self.collateral_key.decode('hex')
s += self.delegate_key.decode('hex')
else:
# Use the RIPEMD-160 hashes of our keys.
s += bitcoin.hash_encode(bitcoin.hash_160(self.collateral_key.decode('hex')))
s += bitcoin.hash_encode(bitcoin.hash_160(self.delegate_key.decode('hex')))
s += str(self.protocol_version)
return s
def parse_TxIn(vds):
d = {}
d['prevout_hash'] = hash_encode(vds.read_bytes(32))
d['prevout_n'] = vds.read_uint32()
scriptSig = vds.read_bytes(vds.read_compact_size())
d['sequence'] = vds.read_uint32()
if scriptSig:
pubkeys, signatures, address = get_address_from_input_script(scriptSig)
else:
pubkeys = []
signatures = []
address = None
d['address'] = address
d['signatures'] = signatures
return d
def parse_TxIn(vds):
d = {}
d['prevout_hash'] = hash_encode(vds.read_bytes(32))
d['prevout_n'] = vds.read_uint32()
scriptSig = vds.read_bytes(vds.read_compact_size())
d['sequence'] = vds.read_uint32()
if scriptSig:
pubkeys, signatures, address = get_address_from_input_script(scriptSig)
else:
pubkeys = []
signatures = []
address = None
d['address'] = address
d['signatures'] = signatures
return d
def tx_response(self, response):
params, result = self.parse_response(response)
if not params:
return
tx_hash, tx_height = params
assert tx_hash == hash_encode(sha256(result.decode('hex')))
tx = Transaction(result)
try:
tx.deserialize()
except Exception:
self.print_msg("cannot deserialize transaction, skipping", tx_hash)
return
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.requested_tx.remove((tx_hash, tx_height))
self.print_error("received tx:", tx_hash, len(tx.raw))
# callbacks
self.network.trigger_callback('new_transaction', (tx,))
if not self.requested_tx:
self.network.trigger_callback('updated')
def tx_response(self, response):
params, result = self.parse_response(response)
if not params:
return
tx_hash, tx_height = params
assert tx_hash == hash_encode(Hash(result.decode('hex')))
tx = Transaction(result)
try:
tx.deserialize()
except Exception:
self.print_msg("cannot deserialize transaction, skipping", tx_hash)
return
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.requested_tx.remove((tx_hash, tx_height))
self.print_error("received tx:", tx_hash, len(tx.raw))
# callbacks
self.network.trigger_callback('new_transaction', (tx, ))
if not self.requested_tx:
self.network.trigger_callback('updated')
def tx_response(self, response):
params, result = self.parse_response(response)
if not params:
return
tx_hash, tx_height = params
assert tx_hash == hash_encode(Hash(result.decode('hex')))
tx = Transaction(result)
try:
tx.deserialize()
except Exception:
self.print_msg("cannot deserialize transaction, skipping", tx_hash)
return
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.requested_tx.remove((tx_hash, tx_height))
self.print_error("received tx:", tx_hash, len(tx.raw))
if not self.requested_tx:
self.network.trigger_callback('updated')
# Updated gets called too many times from other places as
# well; if we used that signal we get the notification
# three times
self.network.trigger_callback("new_transaction")
def tx_response(self, response):
params, result = self.parse_response(response)
if not params:
return
tx_hash, tx_height = params
assert tx_hash == hash_encode(Hash(result.decode('hex')))
tx = Transaction(result)
try:
tx.deserialize()
except Exception:
self.print_msg("cannot deserialize transaction, skipping", tx_hash)
return
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.requested_tx.remove((tx_hash, tx_height))
self.print_error("received tx:", tx_hash, len(tx.raw))
if not self.requested_tx:
self.network.trigger_callback('updated')
# Updated gets called too many times from other places as
# well; if we used that signal we get the notification
# three times
self.network.trigger_callback("new_transaction")
def deserialize(cls, vds):
vin = parse_input(vds)
block_hash = hash_encode(vds.read_bytes(32))
sig_time = vds.read_int64()
sig = vds.read_bytes(vds.read_compact_size())
return cls(vin=vin, block_hash=block_hash, sig_time=sig_time, sig=sig)
def get_hash(self):
vds = BCDataStream()
serialize_input(vds, self.vin)
vds.write_string(self.collateral_key.decode('hex'))
vds.write_int64(self.sig_time)
return hash_encode(bitcoin.Hash(vds.input))
def run_interface(self):
#print_error("synchronizer: connected to", self.network.get_parameters())
requested_tx = []
missing_tx = []
requested_histories = {}
# request any missing transactions
for history in self.wallet.history.values():
if history == ['*']: continue
for tx_hash, tx_height in history:
if self.wallet.transactions.get(tx_hash) is None and (tx_hash, tx_height) not in missing_tx:
missing_tx.append((tx_hash, tx_height))
if missing_tx:
print_error("missing tx", missing_tx)
# subscriptions
self.subscribe_to_addresses(self.wallet.addresses(True))
while self.is_running():
# 1. create new addresses
self.wallet.synchronize()
# request missing addresses
new_addresses = []
while True:
try:
addr = self.address_queue.get(block=False)
except Queue.Empty:
break
new_addresses.append(addr)
if new_addresses:
self.subscribe_to_addresses(new_addresses)
# request missing transactions
for tx_hash, tx_height in missing_tx:
if (tx_hash, tx_height) not in requested_tx:
self.network.send([('blockchain.transaction.get', [tx_hash, tx_height])], self.queue.put)
requested_tx.append((tx_hash, tx_height))
missing_tx = []
# detect if situation has changed
if self.network.is_up_to_date() and self.queue.empty():
if not self.wallet.is_up_to_date():
self.wallet.set_up_to_date(True)
self.was_updated = True
else:
if self.wallet.is_up_to_date():
self.wallet.set_up_to_date(False)
self.was_updated = True
if self.was_updated:
self.network.trigger_callback('updated')
self.was_updated = False
# 2. get a response
try:
r = self.queue.get(timeout=0.1)
except Queue.Empty:
continue
# 3. process response
method = r['method']
params = r['params']
result = r.get('result')
error = r.get('error')
if error:
print_error("error", r)
continue
if method == 'blockchain.address.subscribe':
addr = params[0]
if self.wallet.get_status(self.wallet.get_history(addr)) != result:
if requested_histories.get(addr) is None:
self.network.send([('blockchain.address.get_history', [addr])], self.queue.put)
requested_histories[addr] = result
elif method == 'blockchain.address.get_history':
addr = params[0]
print_error("receiving history", addr, result)
if result == ['*']:
assert requested_histories.pop(addr) == '*'
self.wallet.receive_history_callback(addr, result)
else:
hist = []
# check that txids are unique
txids = []
for item in result:
tx_hash = item['tx_hash']
if tx_hash not in txids:
txids.append(tx_hash)
hist.append((tx_hash, item['height']))
if len(hist) != len(result):
raise Exception("error: server sent history with non-unique txid", result)
# check that the status corresponds to what was announced
rs = requested_histories.pop(addr)
if self.wallet.get_status(hist) != rs:
raise Exception("error: status mismatch: %s" % addr)
# store received history
self.wallet.receive_history_callback(addr, hist)
# request transactions that we don't have
for tx_hash, tx_height in hist:
if self.wallet.transactions.get(tx_hash) is None:
if (tx_hash, tx_height) not in requested_tx and (tx_hash, tx_height) not in missing_tx:
missing_tx.append((tx_hash, tx_height))
elif method == 'blockchain.transaction.get':
tx_hash = params[0]
tx_height = params[1]
assert tx_hash == bitcoin.hash_encode(bitcoin.Hash(result.decode('hex')))
tx = Transaction.deserialize(result)
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.was_updated = True
requested_tx.remove((tx_hash, tx_height))
print_error("received tx:", tx_hash, len(tx.raw))
else:
print_error("Error: Unknown message:" + method + ", " + repr(params) + ", " + repr(result))
if self.was_updated and not requested_tx:
self.network.trigger_callback('updated')
# Updated gets called too many times from other places as well.
# If we use that signal we get the notification three times.
self.network.trigger_callback("new_transaction")
self.was_updated = False
