def test_extract_commitment_number_from_tx(self):
raw_tx = "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"
tx = Transaction(raw_tx)
self.assertEqual(
commitment_number,
extract_ctn_from_tx(tx, 0, local_payment_basepoint,
remote_payment_basepoint))
def test_payto(self, mock_save_db):
wallet = restore_wallet_from_text('disagree rug lemon bean unaware square alone beach tennis exhibit fix mimic',
gap_limit=2,
path='if_this_exists_mocking_failed_648151893',
config=self.config)['wallet']
# bootstrap wallet
funding_tx = Transaction('0200000000010165806607dd458280cb57bf64a16cf4be85d053145227b98c28932e953076b8e20000000000fdffffff02ac150700000000001600147e3ddfe6232e448a8390f3073c7a3b2044fd17eb102908000000000016001427fbe3707bc57e5bb63d6f15733ec88626d8188a02473044022049ce9efbab88808720aa563e2d9bc40226389ab459c4390ea3e89465665d593502206c1c7c30a2f640af1e463e5107ee4cfc0ee22664cfae3f2606a95303b54cdef80121026269e54d06f7070c1f967eb2874ba60de550dfc327a945c98eb773672d9411fd77181e00')
funding_txid = funding_tx.txid()
self.assertEqual('ede61d39e501d65ccf34e6300da439419c43393f793bb9a8a4b06b2d0d80a8a0', funding_txid)
wallet.receive_tx_callback(funding_txid, funding_tx, TX_HEIGHT_UNCONFIRMED)
cmds = Commands(config=self.config)
tx_str = cmds._run(
'payto', (),
destination="tltc1qsyzgpwa0vg2940u5t6l97etuvedr5dejcp84ad",
amount="0.00123456",
feerate=50,
locktime=1972344,
wallet=wallet)
tx = tx_from_any(tx_str)
self.assertEqual(2, len(tx.outputs()))
txout = TxOutput.from_address_and_value("tltc1qsyzgpwa0vg2940u5t6l97etuvedr5dejcp84ad", 123456)
self.assertTrue(txout in tx.outputs())
self.assertEqual("02000000000101a0a8800d2d6bb0a4a8b93b793f39439c4139a40d30e634cf5cd601e5391de6ed0100000000fdffffff0240e2010000000000160014810480bbaf62145abf945ebe5f657c665a3a3732462b060000000000160014a5103285eb519f826520a9f7d3227e1eaa7ec5f802473044022057a6f4b1ec63336c7d0ba233e785ec9f2e2d9c2d67617a50e069f4498ee6a3b7022032fb331e0bef06f46e9cb77bfe94413142653c4912516835e941fa7f170c1a53012103001b55f19541faaf7e6d57dd1bdb9fdc37725fc500e12f2418cc11e0aed4154978181e00",
tx_str)
def on_qr(self, data):
from electrum_ltc.bitcoin import base_decode, is_address
data = data.strip()
if is_address(data):
self.set_URI(data)
return
if data.startswith('litecoin:'):
self.set_URI(data)
return
if data.startswith('ln'):
self.set_ln_invoice(data)
return
# try to decode transaction
from electrum_ltc.transaction import Transaction
from electrum_ltc.util import bh2u
try:
text = bh2u(base_decode(data, None, base=43))
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")
def get_input_tx(self, tx_hash):
# First look up an input transaction in the wallet where it
# will likely be. If co-signing a transaction it may not have
# all the input txs, in which case we ask the network.
tx = self.transactions.get(tx_hash)
if not tx:
request = ('blockchain.transaction.get', [tx_hash])
# FIXME: what if offline?
tx = Transaction(self.network.synchronous_get(request))
return tx
def parse(self, raw, filename=None):
# auto-detect and decode Base64 and Hex.
if raw[0:10].lower() == b'70736274ff':
raw = a2b_hex(raw.strip())
if raw[0:6] == b'cHNidP':
raw = b64decode(raw)
assert raw[0:5] == b'psbt\xff', "bad magic"
self.filename = filename
with io.BytesIO(raw[5:]) as fd:
# globals
while 1:
ks = deser_compact_size(fd)
if ks is None: break
if ks == 0: break
key = fd.read(ks)
vs = deser_compact_size(fd)
val = fd.read(vs)
kt = key[0]
if kt == PSBT_GLOBAL_UNSIGNED_TX:
self.txn = val
self.parsed_txn = Transaction(val.hex())
num_ins = len(self.parsed_txn.inputs())
num_outs = len(self.parsed_txn.outputs())
elif kt == PSBT_GLOBAL_XPUB:
# key=(xpub) => val=(path)
self.xpubs.append((key, val))
else:
raise ValueError('unknown global key type: 0x%02x' % kt)
assert self.txn, 'missing reqd section'
self.inputs = [BasicPSBTInput(fd, idx) for idx in range(num_ins)]
self.outputs = [
BasicPSBTOutput(fd, idx) for idx in range(num_outs)
]
sep = fd.read(1)
assert sep == b''
return self
def do_paste(self):
data = self.app._clipboard.paste()
if not data:
self.app.show_info(_("Clipboard is empty"))
return
# try to decode as transaction
try:
raw_tx = tx_from_str(data)
tx = Transaction(raw_tx)
tx.deserialize()
except:
tx = None
if tx:
self.app.tx_dialog(tx)
return
# try to decode as URI/address
self.set_URI(data)
def on_qr(self, data):
if data.startswith('litecoin:'):
self.set_URI(data)
return
# try to decode transaction
from electrum_ltc.bitcoin import base_decode
from electrum_ltc.transaction import Transaction
try:
text = base_decode(data, None, base=43).encode('hex')
tx = Transaction(text)
except:
tx = None
if tx:
self.tx_dialog(tx)
return
# show error
self.show_error("Unable to decode QR data")
def recover_tx_from_psbt(first: BasicPSBT, wallet: Abstract_Wallet) -> Transaction:
# Take a PSBT object and re-construct the Electrum transaction object.
# - does not include signatures, see merge_sigs_from_psbt
# - any PSBT in the group could be used for this purpose; all must share tx details
tx = Transaction(first.txn.hex())
tx.deserialize(force_full_parse=True)
# .. add back some data that's been preserved in the PSBT, but isn't part of
# of the unsigned bitcoin txn
tx.is_partial_originally = True
for idx, inp in enumerate(tx.inputs()):
scr = first.inputs[idx].redeem_script or first.inputs[idx].witness_script
# XXX should use transaction.py parse_scriptSig() here!
if scr:
try:
M, N, __, pubkeys, __ = parse_redeemScript_multisig(scr)
except NotRecognizedRedeemScript:
# limitation: we can only handle M-of-N multisig here
raise ValueError("Cannot handle non M-of-N multisig input")
inp['pubkeys'] = pubkeys
inp['x_pubkeys'] = pubkeys
inp['num_sig'] = M
inp['type'] = 'p2wsh' if first.inputs[idx].witness_script else 'p2sh'
# bugfix: transaction.py:parse_input() puts empty dict here, but need a list
inp['signatures'] = [None] * N
if 'prev_tx' not in inp:
# fetch info about inputs' previous txn
wallet.add_hw_info(tx)
if 'value' not in inp:
# we'll need to know the value of the outpts used as part
# of the witness data, much later...
inp['value'] = inp['prev_tx'].outputs()[inp['prevout_n']].value
return tx
def do_paste(self):
data = self.app._clipboard.paste().strip()
if not data:
self.app.show_info(_("Clipboard is empty"))
return
# try to decode as transaction
try:
raw_tx = tx_from_str(data)
tx = Transaction(raw_tx)
tx.deserialize()
except:
tx = None
if tx:
self.app.tx_dialog(tx)
return
lower = data.lower()
if lower.startswith('lightning:ln'):
lower = lower[10:]
# try to decode as URI/address
if lower.startswith('ln'):
self.set_ln_invoice(lower)
else:
self.set_URI(data)
def Tx_test(self):
global GRowTransaction
global GFileID
global Tx_res
global GIDTran
global ST4del
try:
XTr = Transaction(GRowTransaction)
except:
Tx_res = 0
return
print('XTr = ', XTr)
Flv, FLfee, TTime = FilePP[GFileID]
if (Flv + FLfee == 0.):
Tx_res = 1
return
try:
amount, fee = Tx_IOSave[GIDTran]
except:
try:
#is_relevant, is_mine, v, fee = self.window.wallet.get_wallet_delta(XTr)
tx_hash, status, label, can_broadcast, can_rbf, amount, fee, height, conf, timestamp, exp_n = self.window.wallet.get_tx_info(
XTr)
if status != u'Signed':
Tx_res = 0
return
InputAdrs = {}
for x in XTr.inputs():
InputAdrs[x['address']] = None
for x in InputAdrs:
InputAdrs[x] = self.window.network.synchronous_get(
('blockchain.address.listunspent', [x]))
fee = 0
amount = 0
for x in XTr.inputs():
#print(InputAdrs[x['address']] )
for y in InputAdrs[x['address']]:
if y['tx_hash'] == x['prevout_hash']:
fee += int(y['value'])
for addr, value in XTr.get_outputs():
#print('get_outputs=',addr, value , FFS.ReceivAddress )
fee -= value
if addr == FFS.ReceivAddress:
amount += value
if len(ST4del) > 9:
del Tx_IOSave[ST4del[0]]
del ST4del[0]
Tx_IOSave[GIDTran] = amount, fee
ST4del.append(GIDTran)
except:
Tx_res = 0
return
#fee = amount - XTr.output_value()
self.window.show_transaction(XTr, u'')
print("amount, fee =", amount, fee, Flv, FLfee, TTime,
len(GRowTransaction))
dFlv = abs(Flv * 1e8 - amount)
dFLfee = abs(FLfee * 1e8 - fee * 1000. / (len(GRowTransaction) / 2))
if dFLfee + dFlv < 1000:
msg = 'MemPoolLimit'
if amount > MemPoolLimit * 1e8:
status, msg = None, None
try:
status, msg = self.window.network.broadcast(XTr)
print('broadcast_try=', status, msg)
except:
pass
print('broadcast=', status, msg)
Tx_res = 1
return
Tx_res = 0
def test_verify_ok_t_tx(self):
"""Actually mined 64 byte tx should not raise."""
t_tx = Transaction(VALID_64_BYTE_TX)
t_tx_hash = t_tx.txid()
self.assertEqual(MERKLE_ROOT,
SPV.hash_merkle_root(MERKLE_BRANCH, t_tx_hash, 3))
def Tx_test(self):
global GRowTransaction
global GFileID
global ST4del
global Tx_IOSave
try:
XTr = Transaction(GRowTransaction)
except:
return 0
#print('XTr = ',XTr)
Flv , FLfee , TTime = FFS.FilePP[GFileID]
if( Flv + FLfee == 0. ):
return 1
try:
amount,fee = Tx_IOSave[self.IDTran]
except:
if not XTr.is_complete():
return 0
try:
#is_relevant, is_mine, v, fee = self.window.wallet.get_wallet_delta(XTr)
self.netw = Network(None)
self.netw.start()
InputAdrs = {}
for x in XTr.inputs():
InputAdrs[x['address']]=None
for x in InputAdrs:
InputAdrs[x]=self.netw.synchronous_get(('blockchain.address.listunspent', [x]))
fee = 0
amount = 0
for x in XTr.inputs():
print(InputAdrs[x['address']] )
for y in InputAdrs[x['address']]:
if y['tx_hash'] == x['prevout_hash']:
fee += int( y['value'])
for addr, value in XTr.get_outputs():
print('get_outputs=',addr, value , FFS.ReceivAddress )
fee -= value
if addr == FFS.ReceivAddress:
amount += value
if len(ST4del) > 9:
del Tx_IOSave[ST4del[0]]
del ST4del[0]
Tx_IOSave[self.IDTran] = amount,fee
ST4del.append(self.IDTran)
except:
return 0
dFlv = abs (Flv * 1e8 - amount )
dFLfee = abs (FLfee * 1e8 - fee * 1000. / (len(GRowTransaction)/2) )
if dFLfee + dFlv < 1000 :
msg = 'MemPoolLimit'
if amount > MemPoolLimit * 1e8 :
status, msg = None,None
try:
status, msg = self.window.network.broadcast(XTr)
print('broadcast_try=',status, msg)
except:
pass
print('broadcast=',status, msg)
return 1
return 0
def main(self):
add_menu()
welcome = 'Use the menu to scan a transaction.'
droid.fullShow(qr_layout(welcome))
while True:
event = droid.eventWait().result
if not event:
continue
elif event["name"] == "key":
if event["data"]["key"] == '4':
if self.qr_data:
self.show_qr(None)
self.show_title(welcome)
else:
break
elif event["name"] == "seed":
password = self.get_password()
if password is False:
modal_dialog('Error','incorrect password')
continue
seed = wallet.get_mnemonic(password)
modal_dialog('Your seed is', seed)
elif event["name"] == "password":
self.change_password_dialog()
elif event["name"] == "xpub":
mpk = wallet.get_master_public_key()
self.show_qr(mpk)
self.show_title('master public key')
elif event["name"] == "scan":
r = droid.scanBarcode()
r = r.result
if not r:
continue
data = r['extras']['SCAN_RESULT']
data = base_decode(data.encode('utf8'), None, base=43)
data = ''.join(chr(ord(b)) for b in data).encode('hex')
tx = Transaction(data)
#except:
# modal_dialog('Error', 'Cannot parse transaction')
# continue
if not wallet.can_sign(tx):
modal_dialog('Error', 'Cannot sign this transaction')
continue
lines = map(lambda x: x[0] + u'\t\t' + format_satoshis(x[1]) if x[1] else x[0], tx.get_outputs())
if not modal_question('Sign?', '\n'.join(lines)):
continue
password = self.get_password()
if password is False:
modal_dialog('Error','incorrect password')
continue
droid.dialogCreateSpinnerProgress("Signing")
droid.dialogShow()
wallet.sign_transaction(tx, password)
droid.dialogDismiss()
data = base_encode(str(tx).decode('hex'), base=43)
self.show_qr(data)
self.show_title('Signed Transaction')
droid.makeToast("Bye!")
