def __init__(self, cert, config):
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel(config.LND_HOST, creds)
self.stub = lnrpc.LightningStub(channel)
self.node_address = config.NODE_ADDRESS
self.node_port = config.NODE_PORT
self.channel_amount = config.CHANNEL_AMOUNT
def new_address(container):
channel = get_channel(container)
macaroon = codecs.encode(open(_macaroon(container), 'rb').read(), 'hex')
stub = lnrpc.LightningStub(channel)
request = ln.NewAddressRequest(type=0)
response = stub.NewAddress(request, metadata=[('macaroon', macaroon)])
return response.address
def get_stub():
cert = open(os.path.expanduser('./lnd/tls.cert'), 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
lnurl = "%s:%s"%(os.getenv('LND_IP'), os.getenv('LND_GRPC_PORT'))
channel = grpc.secure_channel(lnurl, creds)
stub = lnrpc.LightningStub(channel)
return stub
def connect():
# Due to updated ECDSA generated tls.cert we need to let gprc know that
# we need to use that cipher suite otherwise there will be a handshake
# error when we communicate with the lnd rpc server.
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
with open('/home/lnd/.lnd/tls.cert', 'rb') as f:
cert = f.read()
with open('/home/lnd/.lnd/data/chain/smartcash/mainnet/invoice.macaroon', 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
def metadata_callback(_context, callback):
# for more info see grpc docs
callback([('macaroon', macaroon)], None)
# build ssl credentials using the cert the same as before
cert_creds = grpc.ssl_channel_credentials(cert)
# now build meta data credentials
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# combine the cert credentials and the macaroon auth credentials
# such that every call is properly encrypted and authenticated
combined_creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
# finally pass in the combined credentials when creating a channel
channel = grpc.secure_channel('localhost:10009', combined_creds)
stub = lnrpc.LightningStub(channel)
return stub
def __init__(self, config):
self.displayName = config['name']
with open(config['tls_cert'], 'rb') as tls_cert_file:
cert_credentials = grpc.ssl_channel_credentials(
tls_cert_file.read())
if config['admin_macaroon']:
with open(config['admin_macaroon'], 'rb') as macaroon_file:
macaroon = codecs.encode(macaroon_file.read(), 'hex')
macaroon_credentials = self.get_macaroon_credentials(
macaroon)
credentials = grpc.composite_channel_credentials(
cert_credentials, macaroon_credentials)
else:
credentials = cert_credentials
channel = grpc.secure_channel(config["rpc_host"], credentials)
# Due to updated ECDSA generated tls.cert we need to let gprc know that
# we need to use that cipher suite otherwise there will be a handhsake
# error when we communicate with the lnd rpc server.
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
logger.info(
f'CONNECTING TO {config["name"]}: {config["rpc_host"]}')
self.client = lnrpc.LightningStub(channel)
self.identity_pubkey = self.getinfo().identity_pubkey
def main():
if not BOT_TOKEN:
sys.stderr.write("Please specify BOT_TOKEN environment variable\n")
return 1
# Open database
global sessionmaker
logger.info("Opening database {}".format(DB_PATH))
sessionmaker = db.open_database(DB_PATH)
session = sessionmaker()
logger.info("Counting {} users and {} transactions".format(
db.count_users(session), db.count_transactions(session)))
session.close()
# Connect to lightning gRPC
global stub
logger.info("Reading TLS certificate {}".format(CERT_PATH))
cert = open(CERT_PATH, 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
logger.info("Connecting to lnd at {}".format(LND_GRPC))
channel = grpc.secure_channel(LND_GRPC, creds)
stub = lnrpc.LightningStub(channel)
# Do a test call
info = stub.GetInfo(ln.GetInfoRequest(), timeout=GRPC_TIMEOUT)
logger.info(info)
logger.info("Connected to lnd".format(info.alias))
if not info.testnet and TESTNET:
logger.critical("lnd is running on mainnet, quitting")
sys.exit(1)
if not info.synced_to_chain:
logger.critical("lnd is not synced")
sys.exit(1)
if not info.chains == ["bitcoin"]:
logger.critical("Only bitcoin is supported at this time")
sys.exit(1)
# Create the telegram bot
global updater
updater = Updater(token=BOT_TOKEN)
updater.dispatcher.add_handler(CommandHandler('start', command_start))
updater.dispatcher.add_handler(CommandHandler('balance', command_balance))
updater.dispatcher.add_handler(
CommandHandler('invoice', command_invoice, pass_args=True))
updater.dispatcher.add_handler(
CommandHandler('pay', command_pay, pass_args=True))
updater.dispatcher.add_handler(CommandHandler('help', help_handler))
updater.dispatcher.add_handler(MessageHandler(Filters.photo,
photo_handler))
updater.dispatcher.add_handler(MessageHandler(Filters.text, text_handler))
updater.start_polling()
# Payments listener in a new thread
import thread
thread.start_new_thread(payments_listener_thread, ())
logger.info("Bot started")
# Wait until telegram poller stops or ^C
updater.idle()
return 0
def main():
# Due to updated ECDSA generated tls.cert we need to let gprc know that
# we need to use that cipher suite otherwise there will be a handshake
# error when we communicate with the lnd rpc server.
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
with open('/home/lnd/.lnd/tls.cert', 'rb') as f:
cert = f.read()
with open('/home/lnd/.lnd/data/chain/smartcash/mainnet/invoice.macaroon', 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
def metadata_callback(context, callback):
# for more info see grpc docs
callback([('macaroon', macaroon)], None)
# build ssl credentials using the cert the same as before
cert_creds = grpc.ssl_channel_credentials(cert)
# now build meta data credentials
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# combine the cert credentials and the macaroon auth credentials
# such that every call is properly encrypted and authenticated
combined_creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
# finally pass in the combined credentials when creating a channel
channel = grpc.secure_channel('localhost:10009', combined_creds)
stub = lnrpc.LightningStub(channel)
invoice = stub.AddInvoice(ln.Invoice(memo="Donation for Mempool"))
print("Content-Type: application/json; charset=UTF-8")
print("")
print('{"r_hash":"%s","payment_request":"%s","add_index":%d}' % (binascii.hexlify(invoice.r_hash),invoice.payment_request,invoice.add_index))
def get_info(container):
channel = get_channel(container)
macaroon = codecs.encode(open(_macaroon(container), 'rb').read(), 'hex')
stub = lnrpc.LightningStub(channel)
request = ln.GetInfoRequest()
response = stub.GetInfo(request, metadata=[('macaroon', macaroon)])
return response
def index(request):
"""
Build the home page of this demo app.
:param request:
:return: HTTP response providing the home page of this demo app.
"""
# Due to updated ECDSA generated tls.cert we need to let gprc know that
# we need to use that cipher suite otherwise there will be a handhsake
# error when we communicate with the lnd rpc server.
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
# Lnd cert is at ~/.lnd/tls.cert on Linux and
# ~/Library/Application Support/Lnd/tls.cert on Mac
cert = open(os.path.expanduser('~/.lnd/tls.cert'), 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel('localhost:10009', creds)
stub = lnrpc.LightningStub(channel)
# Retrieve and display the wallet balance
#response = stub.WalletBalance(ln.WalletBalanceRequest())
m_request = ln.Invoice(value=100, )
response = stub.AddInvoice(m_request)
# Build context for rendering QR codes.
context = dict(
#invoice_id='lntb100u1pdukkecpp505wuvr8a9jujgh80a9nkl60kns0866y73f9ekr8rw5ff0xmmu4nqdqqcqzysxwtzpe8c9pufk5v7z7794247amqh43g43w43elfeea2lpdhj84jjm57desvjp443rvhcfl7x6y5vn0wu77wt2q6h2279dw7kcn6mu6gpuj4uw6',
invoice_id=response.payment_request, )
# Render the index page.
return render(request, 'qr_code_demo/index.html', context=context)
def __init__(self):
os.environ['GRPC_SSL_CIPHER_SUITES'] = 'HIGH+ECDSA'
combined_credentials = self.get_credentials(LND_DIR)
channel_options = [
('grpc.max_message_length', MESSAGE_SIZE_MB),
('grpc.max_receive_message_length', MESSAGE_SIZE_MB)
]
grpc_channel = grpc.secure_channel(SERVER, combined_credentials, channel_options)
self.stub = lnrpc.LightningStub(grpc_channel)
self.graph = None
def index():
try:
rpc_connect = AuthServiceProxy("http://{}:{}@{}:{}".format(rpc_user,rpc_password,allowed_ip,rpc_port))
current_block_height = rpc_connect.getblockcount()
onchain_peers = rpc_connect.getconnectioncount()
onchain_balance = rpc_connect.getbalance()
bitcoin_version = (rpc_connect.getnetworkinfo()['subversion'])[1:-1].replace("Satoshi:","")
sync_prog = str(round(rpc_connect.getblockchaininfo()['verificationprogress']*100, 2)) + "%"
chain_type = rpc_connect.getblockchaininfo()['chain']
if onchain_balance > 0 and chain_type == "main":
onchain_balance = u"₿ " + str(onchain_balance)
elif onchain_balance == 0:
onchain_balance = u"₿ " + str(0)
elif onchain_balance > 0 and chain_type == "test":
onchain_balance = u"t₿ " + str(onchain_balance)
else:
onchain_balance = u"t₿ " + str(0)
if chain_type == "test":
chaintype_ln = "testnet"
else:
chaintype_ln = "mainnet"
except:
current_block_height = onchain_peers = onchain_balance = bitcoin_version = sync_prog = chain_type = "Offline!"
try:
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
with open(os.path.expanduser(lnd_dir_location + 'data/chain/bitcoin/{}/admin.macaroon'.format(chaintype_ln)), 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
cert = open(os.path.expanduser(lnd_dir_location + 'tls.cert'), 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel('localhost:10009', creds)
stub = lnrpc.LightningStub(channel)
response = stub.GetInfo(ln.GetInfoRequest(), metadata=[('macaroon', macaroon)])
satbalance = stub.ChannelBalance(ln.ChannelBalanceRequest(), metadata=[('macaroon', macaroon)])
lightning_channels_act = response.num_active_channels
lightning_peers = response.num_peers
offchain_balance = u"ş " + str(format(satbalance.balance,','))
lightning_version = response.version[:5]
alias = response.alias
except:
lightning_channels_act = lightning_peers = offchain_balance = lightning_version = alias = "Offline!"
return render_template('index.html', current_block_height=current_block_height,
onchain_peers=onchain_peers, onchain_balance=onchain_balance,
bitcoin_version=bitcoin_version, sync_prog=sync_prog, chain_type=chain_type, lightning_channels_act=lightning_channels_act,
lightning_peers=lightning_peers, offchain_balance=offchain_balance,
lightning_version=lightning_version, alias=alias)
def get_lightning_stub():
os.environ['GRPC_SSL_CIPHER_SUITES'] = 'HIGH+ECDSA'
cert = open(LND_DIR + 'tls.cert', 'rb').read()
ssl_creds = grpc.ssl_channel_credentials(cert)
auth_creds = grpc.metadata_call_credentials(metadata_callback)
combined_creds = grpc.composite_channel_credentials(ssl_creds, auth_creds)
channel = grpc.secure_channel('localhost:10009', combined_creds)
stub = lnrpc.LightningStub(channel)
return stub
def connect(source_container, dest_container):
dest_info = get_info(dest_container)
channel = get_channel(source_container)
macaroon = codecs.encode(
open(_macaroon(source_container), 'rb').read(), 'hex')
stub = lnrpc.LightningStub(channel)
addr = ln.LightningAddress(
pubkey=dest_info.identity_pubkey,
host=dest_container,
)
request = ln.ConnectPeerRequest(addr=addr)
stub.ConnectPeer(request, metadata=[('macaroon', macaroon)])
def start(self):
super().start()
self.wait_for_log('RPC server listening on')
self.unlocker_stub = lnrpc_grpc.WalletUnlockerStub(self.make_channel())
seed = self.unlocker_stub.GenSeed(lnrpc.GenSeedRequest())
self.unlocker_stub.InitWallet(
lnrpc.InitWalletRequest(
wallet_password=b"password",
recovery_window=0,
cipher_seed_mnemonic=seed.cipher_seed_mnemonic))
self.wait_for_log('Done catching up block hashes')
time.sleep(5)
# need to remake the channel, otherwise the Lightning gRPC service might not be there yet
self.stub = lnrpc_grpc.LightningStub(self.make_channel())
logging.info('LND started (pid: {})'.format(self.proc.pid))
def __init__(self, cert, config):
cert_creds = grpc.ssl_channel_credentials(cert)
auth_creds = grpc.metadata_call_credentials(metadata_callback)
creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
channel = grpc.secure_channel(config.LND_HOST, creds)
self.stub = lnrpc.LightningStub(channel)
self.DEFAULT_PRICE = config.DEFAULT_PRICE
self.DEFAULT_EXPIRY = config.DEFAULT_EXPIRY
try:
request = ln.GetInfoRequest()
response = self.stub.GetInfo(request)
logging.info(response)
except grpc.RpcError as e:
logging.error(e)
def main():
# Due to updated ECDSA generated tls.cert we need to let gprc know that
# we need to use that cipher suite otherwise there will be a handshake
# error when we communicate with the lnd rpc server.
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
with open('/home/lnd/.lnd/tls.cert', 'rb') as f:
cert = f.read()
with open('/home/lnd/.lnd/data/chain/bitcoin/mainnet/invoice.macaroon',
'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
def metadata_callback(context, callback):
# for more info see grpc docs
callback([('macaroon', macaroon)], None)
# build ssl credentials using the cert the same as before
cert_creds = grpc.ssl_channel_credentials(cert)
# now build meta data credentials
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# combine the cert credentials and the macaroon auth credentials
# such that every call is properly encrypted and authenticated
combined_creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
# finally pass in the combined credentials when creating a channel
channel = grpc.secure_channel('localhost:10009', combined_creds)
stub = lnrpc.LightningStub(channel)
uri = os.environ.get("REQUEST_URI")
match = re.search("[?&]r_hash=([0-9a-f]+)(&.*)?$", uri)
if not match:
raise ("No Index")
rhash = match.group(1)
settled = False
timeout = time.time() + 60 # 1 minute timeout
while not settled and time.time() < timeout:
invoice = stub.LookupInvoice(ln.PaymentHash(r_hash_str=rhash))
if invoice.settled:
settled = True
break
time.sleep(1)
print("Content-Type: application/json; charset=UTF-8")
print("")
print('{"settled":%s}' % ("true" if settled else "false"))
def __init__(self, lnddatadir):
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
cert = open(os.path.join(lnddatadir, 'tls.cert'), 'rb').read()
certCredentials = grpc.ssl_channel_credentials(cert)
authCredentials = grpc.metadata_call_credentials(self.metadataCallback)
combinedCredentials = grpc.composite_channel_credentials(
certCredentials, authCredentials)
self.channel = grpc.secure_channel('localhost:10009',
combinedCredentials)
self.stub = lnrpc.LightningStub(self.channel)
self.invoicesstub = invoicesrpc.InvoicesStub(self.channel)
self.macaroon = codecs.encode(
open(
os.path.join(lnddatadir,
'data/chain/bitcoin/mainnet/admin.macaroon'),
'rb').read(), 'hex')
def init_node():
def metadata_callback(context, callback):
callback([('macaroon', b64decode(LND_MACAROON).hex())], None)
# build ssl credentials using the cert the same as before
cert_creds = grpc.ssl_channel_credentials(b64decode(LND_TLS_CERT))
# now build meta data credentials
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# combine the cert credentials and the macaroon auth credentials
# such that every call is properly encrypted and authenticated
combined_creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
# finally pass in the combined credentials when creating a channel
channel = grpc.secure_channel(LND_GRPC_URL, combined_creds)
return lnrpc.LightningStub(channel)
def startServerConnection(serverConfigDict):
tls_cert_path = serverConfigDict["tls_cert_path"]
macaroon_path = serverConfigDict["macaroon_path"]
ip_port_adr = serverConfigDict["ip_port_adr"]
# print("Opening secure channel to server")
cert = open(os.path.expanduser(tls_cert_path), 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
with open(os.path.expanduser(macaroon_path), 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
channel = grpc.secure_channel(ip_port_adr, creds)
stub = lnrpc.LightningStub(channel)
return [stub, macaroon]
def __init__(self, cert, config):
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel(config.LND_HOST, creds)
self.stub = lnrpc.LightningStub(channel)
self.DEFAULT_PRICE = config.DEFAULT_PRICE
self.DEFAULT_EXPIRY = config.DEFAULT_EXPIRY
try:
request = ln.GetInfoRequest()
response = self.stub.GetInfo(request)
logging.info(response)
except grpc.RpcError as e:
logging.error(e)
self.broadcast = Broadcaster._instance
self.invoiceThread = threading.Thread(target = self.subscribe_invoices)
self.invoiceThread.daemon = True
LndWrapper._instance = self
def get_stub(node_url: str, macaroon: str, cert: str):
def metadata_callback(context, callback):
# for more info see grpc docs
callback([('macaroon', macaroon)], None)
# build ssl credentials using the cert the same as before
cert_creds = grpc.ssl_channel_credentials(b64decode(cert))
# now build meta data credentials
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# combine the cert credentials and the macaroon auth credentials
# such that every call is properly encrypted and authenticated
combined_creds = grpc.composite_channel_credentials(cert_creds, auth_creds)
# finally pass in the combined credentials when creating a channel
channel = grpc.secure_channel(node_url, combined_creds)
return lnrpc.LightningStub(channel)
def get_lightning_stub():
os.environ['GRPC_SSL_CIPHER_SUITES'] = 'HIGH+ECDSA'
cert = open(LND_DIR + 'tls.cert', 'rb').read()
ssl_creds = grpc.ssl_channel_credentials(cert)
auth_creds = grpc.metadata_call_credentials(metadata_callback)
combined_creds = grpc.composite_channel_credentials(ssl_creds, auth_creds)
#channel = grpc.secure_channel('localhost:10009', combined_creds)
channel = grpc.secure_channel(grpc_url,
combined_creds,
options=[('grpc.max_send_message_length',
50 * 1024 * 1024),
('grpc.max_receive_message_length',
50 * 1024 * 1024)])
stub = lnrpc.LightningStub(channel)
return stub
def open_channel(source_container, dest_container, amount):
"""Open a channel between the 2 specified containers."""
# source_info = get_info(source_container)
dest_info = get_info(dest_container)
try:
connect(source_container, dest_container)
except Exception:
# TODO: Catch more specific error
pass
channel = get_channel(source_container)
macaroon = codecs.encode(
open(_macaroon(source_container), 'rb').read(), 'hex')
stub = lnrpc.LightningStub(channel)
request = ln.OpenChannelRequest(
node_pubkey_string=dest_info.identity_pubkey,
local_funding_amount=amount,
spend_unconfirmed=True,
)
stub.OpenChannelSync(request, metadata=[('macaroon', macaroon)])
class LNDRPC:
cert = open(os.path.expanduser('~/.lnd/tls.cert')).read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel('localhost:10009', creds)
stub = lnrpc.LightningStub(channel)
def __init__(self):
pass
def get_balances(self):
return self.stub.WalletBalance(
ln.WalletBalanceRequest(witness_only=True))
def describe_graph(self):
return self.stub.DescribeGraph(ln.ChannelGraphRequest())
def connect_peer(self, pubkey, host):
addr = ln.LightningAddress(pubkey=pubkey, host=host)
request = ln.ConnectPeerRequest(addr=addr)
try:
response = self.stub.ConnectPeer(request)
return True
except grpc._channel._Rendezvous as e:
print "Error connecting to " + pubkey + ' ' + str(e)
return False
def open_channel(self, pubkey, local_funding_amount):
pubkey_bytes = codecs.decode(pubkey, 'hex')
request = ln.OpenChannelRequest(
node_pubkey=pubkey_bytes,
node_pubkey_string=pubkey,
local_funding_amount=local_funding_amount)
try:
response = self.stub.OpenChannel(request)
#TODO: return success when OpenChannel finishes
except grpc._channel._Rendezvous as e:
print "Error opening channel with " + pubkey + ' ' + str(e)
def connect():
config = getConfig()
with open(config['readonlymacaroonpath'], 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
cert = open(config['tlscertpath'], 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel(
config['lndrpchost'] + ':' + config['lndrpcport'], creds)
stub = lnrpc.LightningStub(channel)
# Simple test to query WalletBalance (There is probably a better test)
if stub.WalletBalance(ln.WalletBalanceRequest(),
metadata=[('macaroon', macaroon)]):
logger.info(
f'Connection to LND on {config["lndrpchost"]}:{config["lndrpcport"]} successful'
)
return stub, macaroon
def __init__(self, rpc_port):
self.port = rpc_port
cred = grpc.ssl_channel_credentials(open('tls.cert', 'rb').read())
channel = grpc.secure_channel('localhost:{}'.format(rpc_port), cred)
self.stub = lnrpc_grpc.LightningStub(channel)
import rpc_pb2 as ln, rpc_pb2_grpc as lnrpc
import grpc
from flask import Flask
from flask_cors import CORS
# Change this to the port your lightning node is running on: default 10009
LND_PORT = "10009"
# Change this to the path to your tls.cert, but keep /home/<user> format, not ~
PATH_TO_TLS_CERT = '/home/valentine/.lnd/tls.cert'
SERVER_PUBKEY = "03a2102f6978b9e5c6a2dd39697f95b36a7992a60ca65e0316dcd517108e8da171"
SERVER_HOST = "52.53.90.150:9735"
cert = open(PATH_TO_TLS_CERT).read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel('localhost:' + LND_PORT, creds)
stub = lnrpc.LightningStub(channel)
# Add server as peer.
listpeers_req = ln.ListPeersRequest()
listpeers_res = stub.ListPeers(listpeers_req)
already_peers = False
for peer in listpeers_res.peers:
if peer.pub_key == SERVER_PUBKEY:
already_peers = True
if not already_peers:
ln_addr = ln.LightningAddress(pubkey=SERVER_PUBKEY, host=SERVER_HOST)
req = ln.ConnectPeerRequest(addr=ln_addr)
res = stub.ConnectPeer(req)
app = Flask(__name__)
CORS(app)
def peerpage():
try:
rpc_connect = AuthServiceProxy("http://{}:{}@{}:{}".format(rpc_user,rpc_password,allowed_ip,rpc_port))
chain_type = rpc_connect.getblockchaininfo()['chain']
if chain_type == "test":
chaintype_ln = "testnet"
else:
chaintype_ln = "mainnet"
os.environ["GRPC_SSL_CIPHER_SUITES"] = 'HIGH+ECDSA'
with open(os.path.expanduser(lnd_dir_location + 'data/chain/bitcoin/{}/admin.macaroon'.format(chaintype_ln)), 'rb') as f:
macaroon_bytes = f.read()
macaroon = codecs.encode(macaroon_bytes, 'hex')
cert = open(os.path.expanduser(lnd_dir_location + 'tls.cert'), 'rb').read()
creds = grpc.ssl_channel_credentials(cert)
channel = grpc.secure_channel('localhost:10009', creds)
stub = lnrpc.LightningStub(channel)
pbks = stub.ListChannels(ln.ListChannelsRequest(), metadata=[('macaroon', macaroon)])
pubkey_list = [str(i.remote_pubkey) for i in pbks.channels]
response = stub.ListPeers(ln.ListPeersRequest(), metadata=[('macaroon', macaroon)])
show_current_peers = response.peers
show_current_peers_list = []
for peer in show_current_peers:
if peer.pub_key in pubkey_list:
show_current_peers_list.append((str(peer.pub_key), True))
else:
show_current_peers_list.append((str(peer.pub_key), False))
conn = True
length_of = len(show_current_peers_list)
except:
show_current_peers_list = ["Offline!"]
length_of = 0
conn = False
pubkey_list = ["Offline!"]
if conn == True:
if request.method == 'POST':
if request.form['action'] == "connectbutton":
if len(request.form['text']) > 10:
response_uri = str(request.form['text'])
result = response_uri.strip()
def connect(host, port, node_id):
addr = ln.LightningAddress(pubkey=node_id, host="{}:{}".format(host, port))
req = ln.ConnectPeerRequest(addr=addr, perm=True)
stub.ConnectPeer(ln.ConnectPeerRequest(addr=addr,perm=False), metadata=[('macaroon',macaroon)])
try:
nodeid, lnhost, lnport = result[:66], result[67:-5], result[-4:]
connect(lnhost,lnport,nodeid)
show_current_peers_list.append((nodeid, False))
length_of = len(show_current_peers_list)
result = "Successfully connected!"
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="SuccessCon", conn=conn)
except:
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="FalseCon", conn=conn)
else:
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="FalseCon", conn=conn)
else:
if len(request.form['text']) > 10:
response_uri = str(request.form['text'])
result = response_uri.strip()
def disconnect(pubkey):
req = ln.DisconnectPeerRequest(pub_key=pubkey)
stub.DisconnectPeer(ln.DisconnectPeerRequest(pub_key=pubkey), metadata=[('macaroon',macaroon)])
try:
disconnect(result)
del show_current_peers_list[-1]
length_of = len(show_current_peers_list)
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="SuccessDis", conn=conn)
except:
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="FalseDis", conn=conn)
else:
return render_template('peerpage.html', len=len(show_current_peers_list), show_current_peers=show_current_peers_list, length_of=length_of, result="FalseDis", conn=conn)
return render_template('peerpage.html', len=len(show_current_peers_list), length_of=length_of, show_current_peers=show_current_peers_list, conn=conn)
def main():
# sets up grpc connection to lnd
channel = get_secure_channel()
# note that the 'admin' macaroon already has the required
# permissions for the walletkit request, so we don't need
# that third macaroon.
macaroon, signer_macaroon = get_macaroons(["admin", "signer"])
# the main stub allows access to the default rpc commands:
stub = lnrpc.LightningStub(channel)
# the signer stub allows us to access the rpc for signing
# transactions on our coins:
stub_signer = signrpc.SignerStub(channel)
# we also need a stub for the walletkit rpc to extract
# public keys for addresses holding coins:
stub_walletkit = walletrpc.WalletKitStub(channel)
# Here we start the process to sign a custom tx.
# 1. List unspent coins, get most recent ones (just an example).
# 2. Get the pubkeys of those addresses.
# 3. Get the next unused address in the wallet as destination.
# 4. Build a transaction, (in future: optionally taking extra
# inputs and outputs from elsewhere).
# 5. Use signOutputRaw rpc to sign the new transaction.
# 6. Use the walletkit PublishTransaction to publish.
# Just an example of retrieving basic info, not necessary:
# Retrieve and display the wallet balance
response = stub.WalletBalance(ln.WalletBalanceRequest(),
metadata=[('macaroon', macaroon)])
print("Current on-chain wallet balance: ", response.total_balance)
inputs = get_our_coins(stub, macaroon) + get_other_coins()
for inp in inputs:
# Attach auxiliary data needed to the inputs, for signing.
# Get the public key of an address
inp["pubkey"] = stub_walletkit.KeyForAddress(
walletkit.KeyForAddressRequest(addr_in=inp["utxo"].address),
metadata=[('macaroon', macaroon)]).raw_key_bytes
# this data (known as scriptCode in BIP143 parlance)
# is the pubkeyhash script for this p2wpkh, as is needed
# to construct the signature hash.
# **NOTE** This code currently works with bech32 only.
# TODO update to allow p2sh-p2wpkh in wallet coins, also.
inp["script"] = btc.pubkey_to_p2pkh_script(inp["pubkey"])
# We need an output address for the transaction, this is taken from the
# standard wallet 'new address' request (type 0 is bech32 p2wpkh):
request = ln.NewAddressRequest(type=0, )
response = stub.NewAddress(request, metadata=[('macaroon', macaroon)])
output_address = response.address
print("Generated new address: ", output_address)
# Build the raw unsigned transaction
tx_ins = []
output_amt = 0
for inp in inputs:
tx_ins.append(inp["utxo"].outpoint.txid_str + ":" +
str(inp["utxo"].outpoint.output_index))
output_amt += inp["utxo"].amount_sat
fee_est = estimate_tx_fee(2, 1, "p2wpkh", 6, stub, macaroon)
output = {"address": output_address, "value": output_amt - fee_est}
tx_unsigned = btc.mktx(tx_ins, [output], version=2)
print(btc.deserialize(tx_unsigned))
# use SignOutputRaw to sign each input (currently, they are all ours).
raw_sigs = {}
for i, inp in enumerate(inputs):
# KeyDescriptors must contain at least one of the pubkey and the HD path,
# here we use the latter:
kd = signer.KeyDescriptor(raw_key_bytes=inp["pubkey"])
# specify the utxo information for this input into a TxOut:
sdout = signer.TxOut(value=inp["utxo"].amount_sat,
pk_script=unhexlify(inp["utxo"].pk_script))
# we must pass a list of SignDescriptors; we could batch all into
# one grpc call if we preferred. The witnessscript field is
# constructed above as the "script" field in the input dict.
sds = [
signer.SignDescriptor(key_desc=kd,
input_index=i,
output=sdout,
witness_script=inp["script"],
sighash=1)
]
req = signer.SignReq(raw_tx_bytes=unhexlify(tx_unsigned),
sign_descs=sds)
# here we make the actual signing request to lnd over grpc:
response = stub_signer.SignOutputRaw(req,
metadata=[('macaroon',
signer_macaroon)])
# note that btcwallet's sign function does not return the sighash byte,
# it must be added manually:
raw_sigs[i] = response.raw_sigs[0] + sighash_all_bytes
# insert the signatures into the relevant inputs in the deserialized tx
tx_unsigned_deser = btc.deserialize(tx_unsigned)
for i in range(len(inputs)):
tx_unsigned_deser["ins"][i]["txinwitness"] = [
btc.safe_hexlify(raw_sigs[i]),
btc.safe_hexlify(inputs[i]["pubkey"])
]
print("Signed transaction: \n", tx_unsigned_deser)
hextx = btc.serialize(tx_unsigned_deser)
print("Serialized: ", hextx)
print("You can broadcast this externally e.g. via Bitcoin Core")
def getStub(url):
channel = grpc.secure_channel(url, creds)
return lnrpc.LightningStub(channel)