def print_transaction(wt):
tx_dict = {
'network':
wt.network.name,
'fee':
wt.fee,
'raw':
wt.raw_hex(),
'outputs': [{
'address': o.address,
'value': o.value
} for o in wt.outputs],
'inputs': [{
'prev_hash':
to_hexstring(i.prev_hash),
'output_n':
struct.unpack('>I', i.output_n)[0],
'address':
i.address,
'signatures': [{
'signature': to_hexstring(s['signature']),
'sig_der': to_hexstring(s['sig_der']),
'pub_key': to_hexstring(s['pub_key']),
} for s in i.signatures],
'value':
i.value
} for i in wt.inputs]
}
pprint(tx_dict)
def as_dict(self):
"""
Get representation of current Block as dictionary.
:return dict:
"""
return {
'block_hash':
to_hexstring(self.block_hash),
'height':
self.height,
'version':
self.version_int,
'prev_block':
None if not self.prev_block else to_hexstring(self.prev_block),
'merkle_root':
to_hexstring(self.merkle_root),
'timestamp':
self.time,
'bits':
self.bits_int,
'nonce':
self.nonce_int,
'target':
self.target_hex,
'difficulty':
self.difficulty,
'tx_count':
self.tx_count,
'transactions':
self.transactions,
'confirmations':
self.confirmations
}
def prefix_search(wif, network=None):
"""
Extract network, script type and public/private information from WIF prefix.
:param wif: WIF string or prefix in bytes or hexadecimal string
:type wif: str, bytes
:param network: Limit search to specified network
:type network: str
:return dict:
"""
key_hex = change_base(wif, 58, 16)
if not key_hex:
key_hex = to_hexstring(wif)
prefix = key_hex[:8].upper()
matches = []
for nw in NETWORK_DEFINITIONS:
if network is not None and nw != network:
continue
data = NETWORK_DEFINITIONS[nw]
for pf in data['prefixes_wif']:
if pf[1] == prefix:
matches.append({
'prefix': prefix,
'is_private': True if pf[0] == 'private' else False,
'prefix_str': pf[2],
'network': nw,
'script_types': pf[3]
})
return matches
def network_by_value(field, value):
"""
Return all networks for field and (prefix) value.
Example, get available networks for WIF or address prefix
>>> network_by_value('prefix_wif', 'B0')
['litecoin', 'litecoin_legacy']
>>> network_by_value('prefix_address', '6f')
['testnet', 'litecoin_testnet']
This method does not work for HD prefixes, use 'wif_prefix_search' instead
>>> network_by_value('prefix_address', '043587CF')
[]
:param field: Prefix name from networks definitions (networks.json)
:type field: str
:param value: Value of network prefix
:type value: str, bytes
:return list: Of network name strings
"""
nws = [(nv, NETWORK_DEFINITIONS[nv]['priority'])
for nv in NETWORK_DEFINITIONS
if NETWORK_DEFINITIONS[nv][field] == value]
if not nws:
try:
value = to_hexstring(value).upper()
except TypeError:
pass
nws = [(nv, NETWORK_DEFINITIONS[nv]['priority'])
for nv in NETWORK_DEFINITIONS
if NETWORK_DEFINITIONS[nv][field] == value]
return [nw[0] for nw in sorted(nws, key=lambda x: x[1], reverse=True)]
def getutxos(self, address, after_txid='', limit=MAX_TRANSACTIONS):
utxos = []
utxo_list = []
next_link = ''
while True:
variables = {'limit': REQ_LIMIT, 'next': next_link, 'dir': 'asc'}
res = self.compose_request('address', 'unspent', address, variables=variables)
next_link = res['paging']['next']
for utxo in res['unspent']:
utxo_list.append(utxo['txid'])
if utxo['txid'] == after_txid:
utxo_list = []
if not next_link or len(utxos) > REQ_LIMIT_TOTAL:
break
for txid in utxo_list[:limit]:
t = self.gettransaction(txid)
for utxo in t.outputs:
if utxo.address != address:
continue
utxos.append(
{
'address': utxo.address,
'tx_hash': t.hash,
'confirmations': t.confirmations,
'output_n': utxo.output_n,
'input_n': 0,
'block_height': t.block_height,
'fee': t.fee,
'size': t.size,
'value': utxo.value,
'script': to_hexstring(utxo.lock_script),
'date': t.date
})
return utxos
def network_by_value(field, value):
"""
Return all networks for field and (prefix) value.
For Example:
network_by_value('prefix_wif', 'B0')
Returns:
['litecoin']
:param field: Prefix name from networks definitions (networks.json)
:type field: str
:param value: Value of network prefix
:type value: str, bytes
:return list: Of network name strings
"""
nws = [(nv, NETWORK_DEFINITIONS[nv]['priority'])
for nv in NETWORK_DEFINITIONS
if NETWORK_DEFINITIONS[nv][field] == value]
if not nws:
try:
value = to_hexstring(value).upper()
except TypeError:
pass
nws = [(nv, NETWORK_DEFINITIONS[nv]['priority'])
for nv in NETWORK_DEFINITIONS
if NETWORK_DEFINITIONS[nv][field] == value]
return [nw[0] for nw in sorted(nws, key=lambda x: x[1], reverse=True)]
def gettransaction(self, txid):
tx = self.proxy.getrawtransaction(txid, 1)
t = Transaction.import_raw(tx['hex'], network=self.network)
t.confirmations = tx['confirmations']
if t.confirmations:
t.status = 'confirmed'
t.verified = True
for i in t.inputs:
if i.prev_hash == b'\x00' * 32:
i.value = t.output_total
i.script_type = 'coinbase'
continue
txi = self.proxy.getrawtransaction(to_hexstring(i.prev_hash), 1)
i.value = int(
round(
float(txi['vout'][i.output_n_int]['value']) /
self.network.denominator))
for o in t.outputs:
o.spent = None
t.block_hash = tx['blockhash']
t.version = struct.pack('>L', tx['version'])
t.date = datetime.utcfromtimestamp(tx['blocktime'])
t.hash = txid
t.update_totals()
return t
def network_values_for(field, output_as='default'):
"""
Return all prefixes mentioned field, i.e.: prefix_wif, prefix_address_p2sh, etc
>>> network_values_for('prefix_wif')
[b'\x99', b'\x80', b'\xef', b'\xb0', b'\xb0', b'\xef', b'\xcc', b'\xef']
>>> network_values_for('prefix_address_p2sh')
[b'\x95', b'\x05', b'\xc4', b'2', b'\x05', b':', b'\x10', b'\x13']
:param field: Prefix name from networks definitions (networks.json)
:type field: str
:param output_as: Output as string or hexstring. Default is string or hexstring depending on field type.
:type output_as: str
:return str:
"""
r = [
_format_value(field, nv[field]) for nv in NETWORK_DEFINITIONS.values()
]
if output_as == 'str':
return [normalize_var(i) for i in r]
elif output_as == 'hex':
return [to_hexstring(i) for i in r]
else:
return r
def _parse_transaction(self, tx, block_height=None, get_input_values=True):
t = Transaction.import_raw(tx['hex'], network=self.network)
t.confirmations = None if 'confirmations' not in tx else tx[
'confirmations']
if t.confirmations or block_height:
t.status = 'confirmed'
t.verified = True
for i in t.inputs:
if i.prev_hash == b'\x00' * 32:
i.script_type = 'coinbase'
continue
if get_input_values:
txi = self.proxy.getrawtransaction(to_hexstring(i.prev_hash),
1)
i.value = int(
round(
float(txi['vout'][i.output_n_int]['value']) /
self.network.denominator))
for o in t.outputs:
o.spent = None
t.block_hash = tx.get('block_hash', tx['txid']) # FIXME, use only one
t.block_height = block_height
t.version = struct.pack('>L', tx['version'])
t.date = datetime.utcfromtimestamp(tx['time'])
t.update_totals()
return t
def _parse_transaction(self, tx, block_height=None, get_input_values=True):
t = Transaction.import_raw(tx['hex'], network=self.network)
t.confirmations = None if 'confirmations' not in tx else tx['confirmations']
t.status = 'unconfirmed'
for i in t.inputs:
if i.prev_hash == b'\x00' * 32:
i.script_type = 'coinbase'
continue
if get_input_values:
txi = self.proxy.getrawtransaction(to_hexstring(i.prev_hash), 1)
i.value = int(round(float(txi['vout'][i.output_n_int]['value']) / self.network.denominator))
for o in t.outputs:
o.spent = None
t.block_hash = tx.get('blockhash', '')
if not block_height and t.block_hash:
block_height = self.proxy.getblock(t.block_hash, 1)['height']
t.block_height = block_height
if not t.confirmations and block_height is not None:
if not self.latest_block:
self.latest_block = self.blockcount()
t.confirmations = (self.latest_block - block_height) + 1
if t.confirmations or block_height:
t.status = 'confirmed'
t.verified = True
t.version = struct.pack('>L', tx['version'])
t.date = None if 'time' not in tx else datetime.utcfromtimestamp(tx['time'])
t.update_totals()
return t
def network_by_value(field, value):
"""
Return all networks for field and (prefix) value.
For Example:
network_by_value('prefix_wif', 'B0')
Returns:
['litecoin']
:param field: Prefix name from networks definitions (networks.json)
:type field: str
:param value: Value of network prefix
:type value: str, bytes
:return list: Of network name strings
"""
try:
value = to_hexstring(value).upper()
except:
pass
return [
nv for nv in NETWORK_DEFINITIONS
if NETWORK_DEFINITIONS[nv][field] == value
]
def getutxos(self, address, after_txid='', limit=MAX_TRANSACTIONS):
# First get all transactions for this address from the blockchain
from bitcoinlib.services.services import Service
srv = Service(network=self.network.name, providers=['bcoin'])
txs = srv.gettransactions(address, limit=25)
# Fail if large number of transactions are found
if not srv.complete:
raise ClientError(
"If not all transactions known, we cannot determine utxo's. "
"Increase limit or use other provider")
utxos = []
for tx in txs:
for unspent in tx.outputs:
if unspent.address != address:
continue
if not srv.isspent(tx.txid, unspent.output_n):
utxos.append({
'address': unspent.address,
'tx_hash': tx.txid,
'confirmations': tx.confirmations,
'output_n': unspent.output_n,
'input_n': 0,
'block_height': tx.block_height,
'fee': tx.fee,
'size': tx.size,
'value': unspent.value,
'script': to_hexstring(unspent.lock_script),
'date': tx.date,
})
if tx.txid == after_txid:
utxos = []
return utxos[:limit]
def wif_prefix_search(wif, witness_type=None, multisig=None, network=None):
"""
Extract network, script type and public/private information from HDKey WIF or WIF prefix.
Example, get bitcoin 'xprv' info:
>>> wif_prefix_search('0488ADE4', network='bitcoin', multisig=False)
[{'prefix': '0488ADE4', 'is_private': True, 'prefix_str': 'xprv', 'network': 'bitcoin', 'witness_type': 'legacy', 'multisig': False, 'script_type': 'p2pkh'}]
Or retreive info with full WIF string:
>>> wif_prefix_search('xprv9wTYmMFdV23N21MM6dLNavSQV7Sj7meSPXx6AV5eTdqqGLjycVjb115Ec5LgRAXscPZgy5G4jQ9csyyZLN3PZLxoM1h3BoPuEJzsgeypdKj', network='bitcoin', multisig=False)
[{'prefix': '0488ADE4', 'is_private': True, 'prefix_str': 'xprv', 'network': 'bitcoin', 'witness_type': 'legacy', 'multisig': False, 'script_type': 'p2pkh'}]
Can return multiple items if no network is specified:
>>> [nw['network'] for nw in wif_prefix_search('0488ADE4', multisig=True)]
['bitcoin', 'dash']
:param wif: WIF string or prefix in bytes or hexadecimal string
:type wif: str, bytes
:param witness_type: Limit search to specific witness type
:type witness_type: str
:param multisig: Limit search to multisig: false, true or None for both. Default is both
:type multisig: bool
:param network: Limit search to specified network
:type network: str
:return dict:
"""
key_hex = ''
if len(wif) > 8:
try:
key_hex = change_base(wif, 58, 16)
except:
pass
else:
key_hex = wif
if not key_hex:
key_hex = to_hexstring(wif)
prefix = key_hex[:8].upper()
matches = []
for nw in NETWORK_DEFINITIONS:
if network is not None and nw != network:
continue
data = NETWORK_DEFINITIONS[nw]
for pf in data['prefixes_wif']:
if pf[0] == prefix and (multisig is None or pf[3] is None or pf[3] == multisig) and \
(witness_type is None or pf[4] is None or pf[4] == witness_type):
matches.append({
'prefix': prefix,
'is_private': True if pf[2] == 'private' else False,
'prefix_str': pf[1],
'network': nw,
'witness_type': pf[4],
'multisig': pf[3],
'script_type': pf[5]
})
return matches
def store_transaction(self, t, order_n=None, commit=True):
"""
Store transaction in cache. Use order number to determine order in a block
:param t: Transaction
:type t: Transaction
:param order_n: Order in block
:type order_n: int
:param commit: Commit transaction to database. Default is True. Can be disabled if a larger number of transactions are added to cache, so you can commit outside this method.
:return:
"""
if not self.cache_enabled():
return
# Only store complete and confirmed transaction in cache
if not t.txid: # pragma: no cover
_logger.info("Caching failure tx: Missing transaction hash")
return False
elif not t.date or not t.block_height or not t.network:
_logger.info("Caching failure tx: Incomplete transaction missing date, block height or network info")
return False
elif not t.coinbase and [i for i in t.inputs if not i.value]:
_logger.info("Caching failure tx: One the transaction inputs has value 0")
return False
raw_hex = None
if CACHE_STORE_RAW_TRANSACTIONS:
raw_hex = t.raw_hex()
if not raw_hex: # pragma: no cover
_logger.info("Caching failure tx: Raw hex missing in transaction")
return False
if self.session.query(DbCacheTransaction).filter_by(txid=t.txid).count():
return
new_tx = DbCacheTransaction(txid=t.txid, date=t.date, confirmations=t.confirmations,
block_height=t.block_height, block_hash=t.block_hash, network_name=t.network.name,
fee=t.fee, raw=raw_hex, order_n=order_n)
self.session.add(new_tx)
for i in t.inputs:
if i.value is None or i.address is None or i.output_n is None: # pragma: no cover
_logger.info("Caching failure tx: Input value, address or output_n missing")
return False
new_node = DbCacheTransactionNode(txid=t.txid, address=i.address, output_n=i.index_n, value=i.value,
is_input=True)
self.session.add(new_node)
for o in t.outputs:
if o.value is None or o.address is None or o.output_n is None: # pragma: no cover
_logger.info("Caching failure tx: Output value, address, spent info or output_n missing")
return False
new_node = DbCacheTransactionNode(
txid=t.txid, address=o.address, output_n=o.output_n, value=o.value, is_input=False, spent=o.spent,
spending_txid=None if not o.spending_txid else to_hexstring(o.spending_txid),
spending_index_n=o.spending_index_n)
self.session.add(new_node)
if commit:
try:
self.commit()
_logger.info("Added transaction %s to cache" % t.txid)
except Exception as e: # pragma: no cover
_logger.warning("Caching failure tx: %s" % e)
def sign(self, msg):
"""
Sign a message with private key, Return signature
"""
priv = PrivateKey(self.key.private_byte, raw=True)
sig = priv.ecdsa_sign(msg)
h = priv.ecdsa_serialize_compact(sig)
return self.key.public_hex, encoding.to_hexstring(h)
def sendrawtransaction(self, rawtx):
"""
Push a raw transaction to the network
:param rawtx: Raw transaction as hexstring
:type rawtx: str, bytes
:return dict: Send transaction result
"""
rawtx = to_hexstring(rawtx)
return self._provider_execute('sendrawtransaction', rawtx)
def getrawtransaction(self, txid):
"""
Get a raw transaction by its transaction hash
:param txid: Transaction identification hash
:type txid: str, bytes
:return str: Raw transaction as hexstring
"""
txid = to_hexstring(txid)
return self._provider_execute('getrawtransaction', txid)
def gettransaction(self, txid):
"""
Get a transaction by its transaction hash. Convert to Bitcoinlib transaction object.
:param txid: Transaction identification hash
:type txid: str, bytes
:return Transaction: A single transaction object
"""
txid = to_hexstring(txid)
return self._provider_execute('gettransaction', txid)
def test_blocks_parse_genesis(self):
raw_block = '0100000000000000000000000000000000000000000000000000000000000000000000003ba3edfd7a7b12b27ac72c3' \
'e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a29ab5f49ffff001d1dac2b7c010100000001000000000000000000' \
'0000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d657320303' \
'32f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f7574' \
'20666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03' \
'909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000'
b = Block.from_raw(to_bytes(raw_block), height=0)
self.assertEqual(to_hexstring(b.block_hash), '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f')
self.assertEqual(b.height, 0)
self.assertEqual(b.version_int, 1)
self.assertEqual(b.prev_block, 32 * b'\x00')
self.assertEqual(to_hexstring(b.merkle_root), '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b')
self.assertEqual(to_hexstring(b.bits), '1d00ffff')
self.assertEqual(b.time, 1231006505)
self.assertEqual(to_hexstring(b.nonce), '7c2bac1d')
self.assertEqual(b.difficulty, 1)
self.assertEqual(b.target_hex, '00000000ffff0000000000000000000000000000000000000000000000000000')
self.assertEqual(b.tx_count, 1)
self.assertEqual(str(b),
'<Block(000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f, 0, transactions: 1)>')
def sendrawtransaction(self, rawtx):
"""
Dummy method to send transactions on the bitcoinlib testnet. The bitcoinlib testnet does not exists,
so it just returns the transaction hash.
:param rawtx: A raw transaction hash
:type rawtx: bytes, str
:return str: Transaction hash
"""
txid = to_hexstring(
hashlib.sha256(hashlib.sha256(
to_bytes(rawtx)).digest()).digest()[::-1])
return {'txid': txid, 'response_dict': {}}
def gettransaction(self, txid):
tx = self.proxy.getrawtransaction(txid, 1)
t = Transaction.import_raw(tx['hex'], network=self.network)
t.confirmations = tx['confirmations']
if t.confirmations:
t.status = 'confirmed'
t.verified = True
for i in t.inputs:
txi = self.proxy.getrawtransaction(to_hexstring(i.prev_hash), 1)
value = int(float(txi['vout'][i.output_n_int]['value']) / self.network.denominator)
i.value = value
t.block_hash = tx['blockhash']
t.version = tx['version']
t.date = datetime.fromtimestamp(tx['blocktime'])
t.update_totals()
return t
def getrawtransaction(self, txid):
"""
Get a raw transaction by its transaction hash
:param txid: Transaction identification hash
:type txid: str, bytes
:return str: Raw transaction as hexstring
"""
txid = to_hexstring(txid)
self.results_cache_n = 0
rawtx = self.cache.getrawtransaction(txid)
if rawtx:
self.results_cache_n = 1
return rawtx
return self._provider_execute('getrawtransaction', txid)
def test_blocks_parse_block_and_transactions(self):
b = Block.from_raw(self.rb250000, parse_transactions=True)
self.assertEqual(to_hexstring(b.block_hash), '000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214')
self.assertEqual(b.height, 250000)
self.assertEqual(b.version_int, 2)
self.assertEqual(b.prev_block, to_bytes('0000000000000009c2e82d884ec07b4aafb64ca3ef83baca2b6b0b5eb72c8f02'))
self.assertEqual(b.merkle_root, to_bytes('16ec1eafaca8ca59d182cbf94f29b50b06ac4207b883f380b9bf547fe8fed723'))
self.assertEqual(b.bits_int, 0x1972dbf2)
self.assertEqual(b.time, 1375533383)
self.assertEqual(b.nonce_int, 0x917661)
self.assertEqual(int(b.difficulty), 37392766)
self.assertEqual(b.target, 720982641204331278205950312227594303241470815982254303477760)
self.assertEqual(b.tx_count, 156)
self.assertEqual(b.transactions[0].txid, '7ae2ab185a6e501753f6e29e5b6a98ba040098acb7c11ffed9430f22ed5263a3')
self.assertEqual(b.transactions[49].txid, '3b6d97f107cba804270f4d22fafda3295b3bfb735366da6c1473157cc94a5f7c')
self.assertEqual(b.transactions[122].txid, 'a5cc9bd850b6eedc3e466b3e0f5c85fb640de0a3537259eb0cae761d0a4f78b4')
self.assertEqual(b.transactions[155].txid, 'e3d6cb87bd37ca53509cdc9ecdabf82ef966d9b25a2598b7de87c8173beb40d5')
def network_values_for(field, output_as='default'):
"""
Return all prefixes mentioned field, i.e.: prefix_wif, prefix_address_p2sh, prefix_hdkey_public, etc
:param field: Prefix name from networks definitions (networks.json)
:type field: str
:param output_as: Output as string or hexstring. Default is string or hexstring depending on field type.
:type output_as: str
:return str:
"""
r = [_format_value(field, nv[field]) for nv in NETWORK_DEFINITIONS.values()]
if output_as == 'str':
return [normalize_var(i) for i in r]
elif output_as == 'hex':
return [to_hexstring(i) for i in r]
else:
return r
def gettransaction(self, txid):
tx = self.compose_request('txs',
txid,
variables={'includeHex': 'true'})
t = Transaction.import_raw(tx['hex'], network=self.network)
# t.hash = to_bytes(txid)
# t.txid = txid
if tx['confirmations']:
t.status = 'confirmed'
t.date = datetime.strptime(tx['confirmed'][:19],
"%Y-%m-%dT%H:%M:%S")
else:
t.status = 'unconfirmed'
t.confirmations = tx['confirmations']
t.block_height = tx['block_height'] if tx['block_height'] > 0 else None
t.block_hash = tx.get('block_hash')
t.fee = tx['fees']
t.rawtx = to_bytes(tx['hex'])
t.size = int(len(tx['hex']) / 2)
t.network = self.network
t.input_total = 0
if len(t.inputs) != len(tx['inputs']):
raise ClientError(
"Invalid number of inputs provided. Raw tx: %d, blockcypher: %d"
% (len(t.inputs), len(tx['inputs'])))
for n, i in enumerate(t.inputs):
if not t.coinbase and not (
tx['inputs'][n]['output_index'] == i.output_n_int and
tx['inputs'][n]['prev_hash'] == to_hexstring(i.prev_hash)):
raise ClientError(
"Transaction inputs do not match raw transaction")
if 'output_value' in tx['inputs'][n]:
if not t.coinbase:
i.value = tx['inputs'][n]['output_value']
t.input_total += i.value
if len(t.outputs) != len(tx['outputs']):
raise ClientError(
"Invalid number of outputs provided. Raw tx: %d, blockcypher: %d"
% (len(t.outputs), len(tx['outputs'])))
for n, o in enumerate(t.outputs):
if 'spent_by' in tx['outputs'][n]:
o.spent = True
o.spending_txid = tx['outputs'][n]['spent_by']
return t
def gettransactions(self,
address,
after_txid='',
max_txs=MAX_TRANSACTIONS):
txs = []
while True:
variables = {'limit': LIMIT_TX, 'after': after_txid}
retries = 0
while retries < 3:
try:
res = self.compose_request('tx', 'address', address,
variables)
except ReadTimeout as e:
sleep(3)
_logger.info("Bcoin client error: %s" % e)
retries += 1
else:
break
finally:
if retries == 3:
raise ClientError(
"Max retries exceeded with bcoin Client")
for tx in res:
txs.append(self._parse_transaction(tx))
if len(txs) >= max_txs:
break
if len(res) == LIMIT_TX:
after_txid = res[LIMIT_TX - 1]['hash']
else:
break
# Check which outputs are spent/unspent for this address
if not after_txid:
address_inputs = [(to_hexstring(inp.prev_hash), inp.output_n_int)
for ti in [t.inputs for t in txs] for inp in ti
if inp.address == address]
for tx in txs:
for to in tx.outputs:
if to.address != address:
continue
spent = True if (tx.hash,
to.output_n) in address_inputs else False
txs[txs.index(tx)].outputs[to.output_n].spent = spent
return txs
def test_blocks_parse_block_and_transactions(self):
b = Block.from_raw(self.rb330000, parse_transactions=True, limit=5)
self.assertEqual(to_hexstring(b.block_hash), '00000000000000000faabab19f17c0178c754dbed023e6c871dcaf74159c5f02')
self.assertEqual(b.height, 330000)
self.assertEqual(b.version_int, 2)
self.assertEqual(b.prev_block, to_bytes('000000000000000003e20f90920dc065da4a507bcf045f44b9abac7fabff4857'))
self.assertEqual(b.merkle_root, to_bytes('5a97519772c615a875c12859f447d9c1fea922f7e36bd08e96cc95eee235d28f'))
self.assertEqual(b.bits_int, 404472624)
self.assertEqual(b.time, 1415983209)
self.assertEqual(b.nonce_int, 3756201140)
self.assertEqual(int(b.difficulty), 39603666252)
self.assertEqual(b.tx_count, 81)
self.assertEqual(b.transactions[0].txid, 'dfd63430f8d14f6545117d74b20da63efd4a75c7e28f723b3dead431b88469ee')
self.assertEqual(b.transactions[4].txid, '717bc8b42f12baf771b6719c2e3b2742925fe3912917c716abef03e35fe49020')
self.assertEqual(len(b.transactions), 5)
b.parse_transactions(70)
self.assertEqual(len(b.transactions), 75)
b.parse_transactions(10)
self.assertEqual(len(b.transactions), 81)
self.assertEqual(b.transactions[80].txid, '7c8483c890942334ecb73db3802f7571b06047b5c15febe3bad11e460065709b')
def gettransaction(self, txid):
"""
Get a transaction by its transaction hash. Convert to Bitcoinlib transaction object.
:param txid: Transaction identification hash
:type txid: str, bytes
:return Transaction: A single transaction object
"""
txid = to_hexstring(txid)
tx = None
self.results_cache_n = 0
if self.min_providers <= 1:
tx = self.cache.gettransaction(txid)
if tx:
self.results_cache_n = 1
if not tx:
tx = self._provider_execute('gettransaction', txid)
if len(self.results) and self.min_providers <= 1:
self.cache.store_transaction(tx, 0)
return tx
def getutxos(self, address, after_txid='', max_txs=MAX_TRANSACTIONS):
txs = self.gettransactions(address,
after_txid=after_txid,
max_txs=max_txs)
utxos = []
for tx in txs:
for unspent in tx.outputs:
if unspent.address != address:
continue
if not self.isspent(tx.hash, unspent.output_n):
utxos.append({
'address': unspent.address,
'tx_hash': tx.hash,
'confirmations': tx.confirmations,
'output_n': unspent.output_n,
'input_n': 0,
'block_height': tx.block_height,
'fee': tx.fee,
'size': tx.size,
'value': unspent.value,
'script': to_hexstring(unspent.lock_script),
'date': tx.date,
})
return utxos
def get_key_format(key, isprivate=None):
"""
Determins the type (private or public), format and network key.
This method does not validate if a key is valid.
:param key: Any private or public key
:type key: str, int, bytes, bytearray
:param isprivate: Is key private or not?
:type isprivate: bool
:return dict: Dictionary with format, network and isprivate
"""
if not key:
raise BKeyError("Key empty, please specify a valid key")
key_format = ""
networks = None
if isinstance(key, (bytes, bytearray)) and len(key) in [128, 130]:
key = to_hexstring(key)
if not (isprivate is None or isinstance(isprivate, bool)):
raise BKeyError("Attribute 'is_private' must be False or True")
elif isinstance(key, numbers.Number):
key_format = 'decimal'
isprivate = True
elif isinstance(key, (bytes, bytearray)) and len(key) in [
33, 65
] and key[:1] in [b'\2', b'\3']:
key_format = 'bin_compressed'
isprivate = False
elif isinstance(key, (bytes, bytearray)) and (len(key) in [33, 65]
and key[:1] == b'\4'):
key_format = 'bin'
isprivate = False
elif isinstance(
key, (bytes, bytearray)) and len(key) == 33 and key[-1:] == b'\1':
key_format = 'bin_compressed'
isprivate = True
elif isinstance(key, (bytes, bytearray)) and len(key) == 32:
key_format = 'bin'
isprivate = True
elif len(key) == 130 and key[:2] == '04' and not isprivate:
key_format = 'public_uncompressed'
isprivate = False
elif len(key) == 128:
key_format = 'hex'
if isprivate is None:
isprivate = True
elif len(key) == 66 and key[:2] in ['02', '03'] and not isprivate:
key_format = 'public'
isprivate = False
elif len(key) == 64:
key_format = 'hex'
if isprivate is None:
isprivate = True
elif len(key) == 66 and key[-2:] in ['01'] and not (isprivate is False):
key_format = 'hex_compressed'
isprivate = True
elif len(key) == 58 and key[:2] == '6P':
key_format = 'wif_protected'
isprivate = True
else:
try:
key_hex = change_base(key, 58, 16)
networks = network_by_value('prefix_wif', key_hex[:2])
if networks:
if key_hex[-10:-8] == '01':
key_format = 'wif_compressed'
else:
key_format = 'wif'
isprivate = True
else:
networks = network_by_value('prefix_hdkey_private',
key_hex[:8])
if networks:
key_format = 'hdkey_private'
isprivate = True
else:
networks = network_by_value('prefix_hdkey_public',
key_hex[:8])
if networks:
key_format = 'hdkey_public'
isprivate = False
# TODO: Recognise address key and implement in Key en HDKey classs
# else:
# networks = network_by_value('prefix_address_p2sh', key_hex[:2]) + \
# network_by_value('prefix_address', key_hex[:2])
# if networks:
# key_format = 'address'
# isprivate = False
except (TypeError, EncodingError):
pass
if not key_format:
try:
int(key)
if 70 < len(key) < 78:
key_format = 'decimal'
isprivate = True
except (TypeError, ValueError):
pass
if not key_format:
raise BKeyError("Key: %s. Unrecognised key format" % key)
else:
return {
"format": key_format,
"networks": networks,
"isprivate": isprivate
}