mirror of
https://github.com/yzernik/squeaknode.git
synced 2026-08-13 12:33:25 +02:00
271 lines
9.5 KiB
Python
271 lines
9.5 KiB
Python
from __future__ import print_function
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import logging
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import random
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import time
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from bitcoin.core import lx, x
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from squeak.params import SelectParams
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from squeak.core import CSqueak
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from squeak.core import CheckSqueak
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from squeak.core import HASH_LENGTH
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from squeak.core import MakeSqueakFromStr
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from squeak.core.encryption import CEncryptedDecryptionKey
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from squeak.core.encryption import generate_data_key
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from squeak.core.signing import CSigningKey
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from squeak.core.signing import CSqueakAddress
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import lnd_pb2 as ln
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import lnd_pb2_grpc as lnrpc
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import grpc
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import squeak_server_pb2
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import squeak_server_pb2_grpc
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import squeak_admin_pb2
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import squeak_admin_pb2_grpc
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from lnd_lightning_client import LNDLightningClient
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def build_squeak_msg(squeak):
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return squeak_server_pb2.Squeak(
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hash=get_hash(squeak),
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serialized_squeak=squeak.serialize(),
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)
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def squeak_from_msg(squeak_msg):
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if not squeak_msg:
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return None
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if not squeak_msg.serialized_squeak:
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return None
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return CSqueak.deserialize(squeak_msg.serialized_squeak)
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def generate_signing_key():
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return CSigningKey.generate()
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def generate_challenge_proof():
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return generate_data_key()
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def get_challenge(encryption_key, challenge_proof):
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return encryption_key.encrypt(challenge_proof)
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def get_address(signing_key):
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verifying_key = signing_key.get_verifying_key()
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address = CSqueakAddress.from_verifying_key(verifying_key)
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return str(address)
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def make_squeak(signing_key: CSigningKey, content: str, reply_to: bytes = b'\x00'*HASH_LENGTH):
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block_height = 0
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block_hash = lx('4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b')
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timestamp = int(time.time())
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return MakeSqueakFromStr(
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signing_key,
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content,
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block_height,
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block_hash,
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timestamp,
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)
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def get_hash(squeak):
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""" Needs to be reversed because hash is stored as little-endian """
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return squeak.GetHash()[::-1]
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def load_lightning_client() -> LNDLightningClient:
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tls_cert_path = '~/.lnd/tls.cert'
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macaroon_path = '~/.lnd/data/chain/bitcoin/simnet/admin.macaroon'
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return LNDLightningClient(
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'lnd',
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10009,
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tls_cert_path,
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macaroon_path,
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ln,
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lnrpc,
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)
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def bxor(b1, b2): # use xor for bytes
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result = bytearray()
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for b1, b2 in zip(b1, b2):
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result.append(b1 ^ b2)
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return bytes(result)
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def string_to_hex(s):
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return bytes.fromhex(s)
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def run():
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# Set the network to simnet for itest.
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SelectParams("mainnet")
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# NOTE(gRPC Python Team): .close() is possible on a channel and should be
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# used in circumstances in which the with statement does not fit the needs
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# of the code.
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with grpc.insecure_channel('sqkserver:8774') as server_channel,\
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grpc.insecure_channel('sqkserver:8994') as admin_channel:
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# load lnd client
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lnd_lightning_client = load_lightning_client()
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balance_from_client = lnd_lightning_client.get_wallet_balance()
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print("Balance from direct client: %s" % balance_from_client)
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assert balance_from_client.total_balance >= 1505000000000
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# Make the stubs
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server_stub = squeak_server_pb2_grpc.SqueakServerStub(server_channel)
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admin_stub = squeak_admin_pb2_grpc.SqueakAdminStub(admin_channel)
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# Post a squeak with a direct request to the server
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signing_key = generate_signing_key()
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squeak = make_squeak(signing_key, 'hello from itest!')
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squeak_hash = get_hash(squeak)
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squeak_msg = build_squeak_msg(squeak)
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post_response = server_stub.PostSqueak(squeak_server_pb2.PostSqueakRequest(squeak=squeak_msg))
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print("Direct server post response: " + str(post_response))
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# Get the same squeak from the server
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get_response = server_stub.GetSqueak(squeak_server_pb2.GetSqueakRequest(hash=squeak_hash))
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print("Direct server get response: " + str(get_response))
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get_response_squeak = squeak_from_msg(get_response.squeak)
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CheckSqueak(get_response_squeak, skipDecryptionCheck=True)
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assert get_hash(get_response_squeak) == get_hash(squeak)
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# Lookup squeaks based on address
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signing_address = get_address(signing_key)
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addresses = [
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signing_address,
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get_address(generate_signing_key()),
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get_address(generate_signing_key()),
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]
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lookup_response = server_stub.LookupSqueaks(squeak_server_pb2.LookupSqueaksRequest(
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addresses=addresses,
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min_block=0,
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max_block=99999999,
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))
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print("Lookup response: " + str(lookup_response))
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assert get_hash(squeak) in set(lookup_response.hashes)
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# Lookup again without the relevant address
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addresses = [
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get_address(generate_signing_key()),
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get_address(generate_signing_key()),
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get_address(generate_signing_key()),
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]
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lookup_response = server_stub.LookupSqueaks(squeak_server_pb2.LookupSqueaksRequest(
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addresses=addresses,
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min_block=0,
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max_block=99999999,
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))
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assert get_hash(squeak) not in set(lookup_response.hashes)
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# Lookup again with a different block range
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addresses = [
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signing_address,
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get_address(generate_signing_key()),
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get_address(generate_signing_key()),
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]
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lookup_response = server_stub.LookupSqueaks(squeak_server_pb2.LookupSqueaksRequest(
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addresses=addresses,
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min_block=600,
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max_block=99999999,
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))
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assert get_hash(squeak) not in set(lookup_response.hashes)
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# Generate a challenge to verify the offer
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expected_proof = generate_challenge_proof()
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encryption_key = squeak.GetEncryptionKey()
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challenge = get_challenge(encryption_key, expected_proof)
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# Buy the squeak data key
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buy_response = server_stub.BuySqueak(squeak_server_pb2.BuySqueakRequest(
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hash=squeak_hash,
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challenge=challenge,
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))
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print("Server buy response: " + str(buy_response))
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assert buy_response.offer.payment_request.startswith('ln')
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# Check the offer challenge proof
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print("Server offer proof: " + str(buy_response.offer.proof))
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assert buy_response.offer.proof == expected_proof
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# Connect to the server lightning node
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connect_peer_response = lnd_lightning_client.connect_peer(buy_response.offer.pubkey, buy_response.offer.host)
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print("Server connect peer response: " + str(connect_peer_response))
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# List peers
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list_peers_response = lnd_lightning_client.list_peers()
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print("Server list peers response: " + str(list_peers_response))
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# Open channel to the server lightning node
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pubkey_bytes = string_to_hex(buy_response.offer.pubkey)
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open_channel_response = lnd_lightning_client.open_channel(pubkey_bytes, 1000000)
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print("Server open channel response: " + str(open_channel_response))
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for update in open_channel_response:
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if update.HasField('chan_open'):
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channel_point = update.chan_open.channel_point
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print("Channel now open: " + str(channel_point))
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break
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# List channels
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list_channels_response = lnd_lightning_client.list_channels()
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print("Server list channels response: " + str(list_channels_response))
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# # Sleep for 60 seconds to confirm the channel open transaction
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# time.sleep(60)
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# # List channels
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# list_channels_response = lnd_lightning_client.list_channels()
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# print("Server list channels response: " + str(list_channels_response))
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# Pay the invoice
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payment = lnd_lightning_client.pay_invoice_sync(buy_response.offer.payment_request)
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print("Server pay invoice response: " + str(payment))
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preimage = payment.payment_preimage
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print("preimage: " + str(preimage))
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# Verify with the payment preimage and decryption key ciphertext
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decryption_key_cipher_bytes = buy_response.offer.key_cipher
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iv = buy_response.offer.iv
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encrypted_decryption_key = CEncryptedDecryptionKey.from_bytes(decryption_key_cipher_bytes)
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# Decrypt the decryption key
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decryption_key = encrypted_decryption_key.get_decryption_key(preimage, iv)
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serialized_decryption_key = decryption_key.get_bytes()
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print("new decryption key: " + str(decryption_key))
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print("new decryption key: " + str(serialized_decryption_key))
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get_response_squeak.SetDecryptionKey(serialized_decryption_key)
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CheckSqueak(get_response_squeak)
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assert get_response_squeak.GetDecryptedContentStr() == 'hello from itest!'
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print("Finished checking squeak.")
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# Check the server balance
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get_balance_response = admin_stub.GetBalance(squeak_admin_pb2.GetBalanceRequest())
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print("Get balance response balance: " + str(get_balance_response.balance))
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assert get_balance_response.balance == 0
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# Close the channel
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time.sleep(10)
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for update in lnd_lightning_client.close_channel(channel_point):
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if update.HasField('chan_close'):
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print("Channel closed.")
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break
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# Check the server balance
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get_balance_response = admin_stub.GetBalance(squeak_admin_pb2.GetBalanceRequest())
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print("Get balance response balance: " + str(get_balance_response.balance))
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# assert get_balance_response.balance > 0
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if __name__ == '__main__':
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logging.basicConfig()
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run()
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