def load_transactions(self):
self.tx_transactions = {}
for tx_hash, raw in self.transactions.items():
tx = Transaction(raw)
self.tx_transactions[tx_hash] = tx
if not self.txi.get(tx_hash) and not self.txo.get(tx_hash) and \
(tx_hash not in self.pruned_txo.values()):
log.info("removing unreferenced tx: %s", tx_hash)
self.tx_transactions.pop(tx_hash)
self.transactions.pop(tx_hash)
# add to claimtrie transactions if its a claimtrie transaction
tx.deserialize()
for n, txout in enumerate(tx.outputs()):
if txout[0] & (TYPE_CLAIM | TYPE_UPDATE | TYPE_SUPPORT):
key = tx_hash + ':' + str(n)
self.claimtrie_transactions[key] = txout[0]
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:
log.info("cannot deserialize transaction, skipping: %s", tx_hash)
return
self.wallet.receive_tx_callback(tx_hash, tx, tx_height)
self.requested_tx.remove((tx_hash, tx_height))
log.info("received tx %s height: %d bytes: %d", tx_hash, tx_height, len(tx.raw))
# callbacks
self.network.trigger_callback('new_transaction', tx)
if not self.requested_tx:
self.network.trigger_callback('updated')
def on_qr(self, data):
from uwallet.bitcoin import base_decode, is_address
data = data.strip()
if is_address(data):
self.set_URI(data)
return
if data.startswith('bitcoin:'):
self.set_URI(data)
return
# try to decode transaction
from uwallet.transaction import Transaction
try:
text = base_decode(data, None, base=43).encode('hex')
tx = Transaction(text)
tx.deserialize()
except:
tx = None
if tx:
self.tx_dialog(tx)
return
# show error
self.show_error("Unable to decode QR data")