def main(source, dest, loop):
bitcoin.SelectParams('testnet')
rpc = bitcoin.rpc.Proxy('http://*****:*****@localhost:18332')
script_pub_key = rpc.validateaddress(source)["scriptPubKey"]
output_script = bitcoin.core.x(script_pub_key)
script_pub_key_dest = rpc.validateaddress(dest)["scriptPubKey"]
output_script_dest = bitcoin.core.x(script_pub_key_dest)
transaction_provider = asyncio.coroutine(rpc.getrawtransaction)
engine = openassets.protocol.ColoringEngine(
transaction_provider, openassets.protocol.OutputCache(), loop)
unspent_outputs = []
am = 0
for output in listunspent(rpc):
if output['scriptPubKey'] == output_script:
unspent_outputs.append(
openassets.transactions.SpendableOutput(
bitcoin.core.COutPoint(output['outpoint'].hash,
output['outpoint'].n),
(yield from engine.get_output(output['outpoint'].hash,
output['outpoint'].n))))
am += output['amount']
builder = openassets.transactions.TransactionBuilder(600)
issuance_parameters = openassets.transactions.TransferParameters(
unspent_outputs=
unspent_outputs, # Unspent outputs the coins are issued from
to_script=
output_script_dest, # The issued coins are sent back to the same address
change_script=
output_script, # The bitcoin change is sent back to the same address
amount=1) # Issue 1,500 units of the asset
transaction = builder.issue(issuance_parameters,
metadata=b'Gianpiero_07/2018',
fees=1000)
send(rpc, transaction)
def create_bill(source,dest,loop,cliente,data,kwh,euro):
res = [] #c.liststreamkeyitems("cambio",cliente+"_"+data)
if (len(res)>0):
print("Bolletta già emessa")
exit(-1)
euro_chain = kwh*euro
bitcoin.SelectParams('testnet')
rpc = bitcoin.rpc.Proxy('http://*****:*****@localhost:18332')
script_pub_key = rpc.validateaddress(source)["scriptPubKey"]
output_script = bitcoin.core.x(script_pub_key)
script_pub_key_dest = rpc.validateaddress(dest)["scriptPubKey"]
output_script_dest = bitcoin.core.x(script_pub_key_dest)
transaction_provider = asyncio.coroutine(rpc.getrawtransaction)
engine = openassets.protocol.ColoringEngine(transaction_provider, openassets.protocol.OutputCache(), loop)
unspent_outputs = []
am = 0
for output in listunspent(rpc):
if output['scriptPubKey'] == output_script:
unspent_outputs.append(openassets.transactions.SpendableOutput(
bitcoin.core.COutPoint(output['outpoint'].hash, output['outpoint'].n),
(yield from engine.get_output(output['outpoint'].hash, output['outpoint'].n))
))
am += output['amount']
builder = openassets.transactions.TransactionBuilder(600)
issuance_parameters = openassets.transactions.TransferParameters(
unspent_outputs=unspent_outputs, # Unspent outputs the coins are issued from
to_script=output_script_dest, # The issued coins are sent back to the same address
change_script=output_script, # The bitcoin change is sent back to the same address
amount=int(round(euro_chain*100))) # Issue euro_chain units of the asset
str_meta = 'EURO_' + cliente + '_' + data
transaction = builder.issue(issuance_parameters, metadata=str_meta.encode('utf-8'), fees=1000)
send(rpc,transaction)
def pay_bill(source,dest,loop,cliente,data):
bitcoin.SelectParams('testnet')
rpc = bitcoin.rpc.Proxy('http://*****:*****@localhost:18332')
script_pub_key = rpc.validateaddress(source)["scriptPubKey"]
output_script = bitcoin.core.x(script_pub_key)
script_pub_key_dest = rpc.validateaddress(dest)["scriptPubKey"]
output_script_dest = bitcoin.core.x(script_pub_key_dest)
cache = openassets.protocol.OutputCache()
transaction_provider = asyncio.coroutine(rpc.getrawtransaction)
engine = openassets.protocol.ColoringEngine(transaction_provider, cache, loop)
find = False
unspent_outputs = []
for output in listunspent(rpc):
if output['scriptPubKey'] == output_script:
transaction_hash = bitcoin.core.lx(output['txid'])
output_index = output['outpoint'].n
err = False
try:
colored_output = yield from engine.get_output(transaction_hash, output_index)
except bitcoin.core.serialize.DeserializationExtraDataError:
print("Un errore")
err = True
if ((colored_output.asset_id == None) or (err==True)):
try:
unspent_outputs.append(openassets.transactions.SpendableOutput(
bitcoin.core.COutPoint(output['outpoint'].hash, output['outpoint'].n),
(yield from engine.get_output(output['outpoint'].hash, output['outpoint'].n))
))
except bitcoin.core.serialize.DeserializationExtraDataError:
pass
else:
output_index=1
colored_output_meta = yield from engine.get_output(transaction_hash, output_index)
if (colored_output_meta.script.find(b'EURO')!=-1):
meta_out = colored_output_meta.script[colored_output_meta.script.find(b'EURO')+5:]
str_cmp = (cliente+"_"+data).encode('utf-8')
if (meta_out==str_cmp):
find = True
assetid = colored_output.asset_id
unspent_outputs.append(openassets.transactions.SpendableOutput(
bitcoin.core.COutPoint(output['outpoint'].hash, output['outpoint'].n),
(yield from engine.get_output(output['outpoint'].hash, output['outpoint'].n))
))
asset_quantity = colored_output.asset_quantity
if (find == False):
print("Bolletta non emessa o già pagata")
exit(-1)
builder = openassets.transactions.TransactionBuilder(600)
issuance_parameters = openassets.transactions.TransferParameters(
unspent_outputs=unspent_outputs, # Unspent outputs the coins are issued from
to_script=output_script_dest, # The issued coins are sent back to the same address
change_script=output_script, # The bitcoin change is sent back to the same address
amount=asset_quantity) # Issue euro_chain units of the asset
transaction = builder.transfer_assets(assetid,issuance_parameters,output_script, fees=1000)
send(rpc,transaction)
txinfo = rpc.getrawtransaction(args.txid, True)
tx = CMutableTransaction.from_tx(txinfo['tx'])
if 'confirmations' in txinfo and txinfo['confirmations'] > 0:
parser.exit("Transaction already mined; %d confirmations." % txinfo['confirmations'])
# Find a txout that was being used for change
change_txout = None
for vout in tx.vout:
try:
addr = CBitcoinAddress.from_scriptPubKey(vout.scriptPubKey)
except ValueError:
continue
if rpc.validateaddress(addr)['ismine']:
change_txout = vout
break
if change_txout is None:
# No suitable change txout; no txout was an address in our wallet.
#
# Create a new txout for use as change.
addr = rpc.getrawchangeaddress()
change_txout = CMutableTxOut(0, addr.to_scriptPubKey())
tx.vout.append(change_txout)
# Find total value in
value_in = 0
for vin in tx.vin:
txinfo = rpc.getrawtransaction(args.txid, True)
tx = CMutableTransaction.from_tx(txinfo['tx'])
if 'confirmations' in txinfo and txinfo['confirmations'] > 0:
parser.exit("Transaction already mined; %d confirmations." %
txinfo['confirmations'])
# Find a txout that was being used for change
change_txout = None
for vout in tx.vout:
try:
addr = CBitcoinAddress.from_scriptPubKey(vout.scriptPubKey)
except ValueError:
continue
if rpc.validateaddress(addr)['ismine']:
change_txout = vout
break
if change_txout is None:
# No suitable change txout; no txout was an address in our wallet.
#
# Create a new txout for use as change.
addr = rpc.getrawchangeaddress()
change_txout = CMutableTxOut(0, addr.to_scriptPubKey())
tx.vout.append(change_txout)
min_change_txout_nValue = 0
if args.first_seen_safe:
min_change_txout_nValue = change_txout.nValue
logging.debug('First-seen-safe enabled: will not reduce change txout value below %s BTC' % \
# Unfortunately there isn't any way to ask Bitcoin Core if a given address
# is a change address; if you're sending yourself funds to test the feature
# it's not possible to distinguish change from send-to-self outputs.
#
# So instead we always build transactions such that the first output is
# change, and we delete only that output. Not pretty - you don't want to do
# something that dumb and anti-privacy in a real wallet - but without a way
# of keeping state this is the best we've got.
try:
addr = CBitcoinAddress.from_scriptPubKey(tx2.vout[0].scriptPubKey)
except ValueError:
pass
else:
# There is an edge case not handled: if we have multiple outputs but
# didn't need a change output. But whatever, this is just a demo!
if len(tx2.vout) > 1 and rpc.validateaddress(addr)['ismine']:
tx2.vout = tx2.vout[1:]
# Add the new output
payment_txout = CMutableTxOut(args.amount, args.address.to_scriptPubKey())
tx2.vout.append(payment_txout)
r = rpc.fundrawtransaction(tx2)
tx2 = CMutableTransaction.from_tx(r['tx'])
tx2_fee = r['fee']
# Set nSequnce on all inputs appropriately to opt-in to full-RBF
for txin in tx2.vin:
txin.nSequence = 0
# Unfortunately there isn't any way to ask Bitcoin Core if a given address
# is a change address; if you're sending yourself funds to test the feature
# it's not possible to distinguish change from send-to-self outputs.
#
# So instead we always build transactions such that the first output is
# change, and we delete only that output. Not pretty - you don't want to do
# something that dumb and anti-privacy in a real wallet - but without a way
# of keeping state this is the best we've got.
try:
addr = CBitcoinAddress.from_scriptPubKey(tx2.vout[0].scriptPubKey)
except ValueError:
pass
else:
# There is an edge case not handled: if we have multiple outputs but
# didn't need a change output. But whatever, this is just a demo!
if len(tx2.vout) > 1 and rpc.validateaddress(addr)["ismine"]:
tx2.vout = tx2.vout[1:]
# Add the new output
payment_txout = CMutableTxOut(args.amount, args.address.to_scriptPubKey())
tx2.vout.append(payment_txout)
r = rpc.fundrawtransaction(tx2)
tx2 = CMutableTransaction.from_tx(r["tx"])
tx2_fee = r["fee"]
# Set nSequnce on all inputs appropriately to opt-in to full-RBF
for txin in tx2.vin:
txin.nSequence = 0xFFFFFFFF - 2
# Unfortunately there isn't any way to ask Bitcoin Core if a given address
# is a change address; if you're sending yourself funds to test the feature
# it's not possible to distinguish change from send-to-self outputs.
#
# So instead we always build transactions such that the first output is
# change, and we delete only that output. Not pretty - you don't want to do
# something that dumb and anti-privacy in a real wallet - but without a way
# of keeping state this is the best we've got.
try:
addr = CBitcoinAddress.from_scriptPubKey(tx2.vout[0].scriptPubKey)
except ValueError:
pass
else:
# There is an edge case not handled: if we have multiple outputs but
# didn't need a change output. But whatever, this is just a demo!
if len(tx2.vout) > 1 and rpc.validateaddress(addr)['ismine']:
tx2.vout = tx2.vout[1:]
# Add the new output
payment_txout = CMutableTxOut(args.amount, args.address.to_scriptPubKey())
tx2.vout.append(payment_txout)
r = rpc.fundrawtransaction(tx2)
tx2 = CMutableTransaction.from_tx(r['tx'])
tx2_fee = r['fee']
# Set nSequnce on all inputs appropriately to opt-in to full-RBF
for txin in tx2.vin:
txin.nSequence = 0
# Move change txout to 0th slot
