forked from LBRYCommunity/lbry-sdk
778 lines
27 KiB
Python
778 lines
27 KiB
Python
import os
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import json
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import shutil
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import asyncio
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import zipfile
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import tarfile
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import logging
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import tempfile
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import subprocess
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import importlib
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import platform
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from distutils.util import strtobool
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from binascii import hexlify
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from typing import Type, Optional
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import urllib.request
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from uuid import uuid4
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import lbry
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from lbry.wallet.server.env import Env
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from lbry.wallet import Wallet, Ledger, RegTestLedger, WalletManager, Account, BlockHeightEvent
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from lbry.conf import KnownHubsList, Config
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from lbry.wallet.orchstr8 import __hub_url__
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from lbry.wallet.server.block_processor import BlockProcessor
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from lbry.wallet.server.chain_reader import BlockchainReaderServer
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from lbry.wallet.server.db.elasticsearch.sync import ElasticWriter
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log = logging.getLogger(__name__)
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def get_spvserver_from_ledger(ledger_module):
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spvserver_path, regtest_class_name = ledger_module.__spvserver__.rsplit('.', 1)
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spvserver_module = importlib.import_module(spvserver_path)
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return getattr(spvserver_module, regtest_class_name)
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def get_lbcd_node_from_ledger(ledger_module):
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return LBCDNode(
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ledger_module.__lbcd_url__,
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ledger_module.__lbcd__,
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ledger_module.__lbcctl__
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)
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def get_lbcwallet_node_from_ledger(ledger_module):
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return LBCWalletNode(
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ledger_module.__lbcwallet_url__,
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ledger_module.__lbcwallet__,
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ledger_module.__lbcctl__
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)
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class Conductor:
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def __init__(self, seed=None):
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self.manager_module = WalletManager
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self.spv_module = get_spvserver_from_ledger(lbry.wallet)
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self.lbcd_node = get_lbcd_node_from_ledger(lbry.wallet)
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self.lbcwallet_node = get_lbcwallet_node_from_ledger(lbry.wallet)
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self.spv_node = SPVNode(self.spv_module)
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self.wallet_node = WalletNode(
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self.manager_module, RegTestLedger, default_seed=seed
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)
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self.hub_node = HubNode(__hub_url__, "hub", self.spv_node)
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self.lbcd_started = False
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self.lbcwallet_started = False
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self.spv_started = False
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self.wallet_started = False
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self.hub_started = False
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self.log = log.getChild('conductor')
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async def start_lbcd(self):
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if not self.lbcd_started:
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asyncio.create_task(self.lbcd_node.start())
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await self.lbcd_node.running.wait()
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self.lbcd_started = True
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async def stop_lbcd(self, cleanup=True):
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if self.lbcd_started:
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await self.lbcd_node.stop(cleanup)
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self.lbcd_started = False
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async def start_hub(self):
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if not self.hub_started:
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asyncio.create_task(self.hub_node.start())
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await self.lbcwallet_node.running.wait()
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self.hub_started = True
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async def stop_hub(self, cleanup=True):
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if self.hub_started:
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await self.hub_node.stop(cleanup)
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self.hub_started = False
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async def start_spv(self):
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if not self.spv_started:
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await self.spv_node.start(self.lbcwallet_node)
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self.spv_started = True
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async def stop_spv(self, cleanup=True):
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if self.spv_started:
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await self.spv_node.stop(cleanup)
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self.spv_started = False
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async def start_wallet(self):
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if not self.wallet_started:
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await self.wallet_node.start(self.spv_node)
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self.wallet_started = True
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async def stop_wallet(self, cleanup=True):
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if self.wallet_started:
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await self.wallet_node.stop(cleanup)
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self.wallet_started = False
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async def start_lbcwallet(self, clean=True):
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if not self.lbcwallet_started:
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asyncio.create_task(self.lbcwallet_node.start())
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await self.lbcwallet_node.running.wait()
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if clean:
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mining_addr = await self.lbcwallet_node.get_new_address()
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self.lbcwallet_node.mining_addr = mining_addr
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await self.lbcwallet_node.generate(200)
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# unlock the wallet for the next 1 hour
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await self.lbcwallet_node.wallet_passphrase("password", 3600)
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self.lbcwallet_started = True
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async def stop_lbcwallet(self, cleanup=True):
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if self.lbcwallet_started:
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await self.lbcwallet_node.stop(cleanup)
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self.lbcwallet_started = False
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async def start(self):
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await self.start_lbcd()
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await self.start_lbcwallet()
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await self.start_spv()
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await self.start_wallet()
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async def stop(self):
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all_the_stops = [
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self.stop_wallet,
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self.stop_spv,
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self.stop_lbcwallet,
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self.stop_lbcd
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]
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for stop in all_the_stops:
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try:
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await stop()
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except Exception as e:
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log.exception('Exception raised while stopping services:', exc_info=e)
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async def clear_mempool(self):
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await self.stop_lbcwallet(cleanup=False)
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await self.stop_lbcd(cleanup=False)
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await self.start_lbcd()
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await self.start_lbcwallet(clean=False)
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class WalletNode:
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def __init__(self, manager_class: Type[WalletManager], ledger_class: Type[Ledger],
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verbose: bool = False, port: int = 5280, default_seed: str = None,
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data_path: str = None) -> None:
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self.manager_class = manager_class
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self.ledger_class = ledger_class
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self.verbose = verbose
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self.manager: Optional[WalletManager] = None
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self.ledger: Optional[Ledger] = None
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self.wallet: Optional[Wallet] = None
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self.account: Optional[Account] = None
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self.data_path: str = data_path or tempfile.mkdtemp()
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self.port = port
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self.default_seed = default_seed
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self.known_hubs = KnownHubsList()
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async def start(self, spv_node: 'SPVNode', seed=None, connect=True, config=None):
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wallets_dir = os.path.join(self.data_path, 'wallets')
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wallet_file_name = os.path.join(wallets_dir, 'my_wallet.json')
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if not os.path.isdir(wallets_dir):
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os.mkdir(wallets_dir)
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with open(wallet_file_name, 'w') as wallet_file:
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wallet_file.write('{"version": 1, "accounts": []}\n')
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self.manager = self.manager_class.from_config({
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'ledgers': {
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self.ledger_class.get_id(): {
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'use_go_hub': not strtobool(os.environ.get('ENABLE_LEGACY_SEARCH') or 'yes'),
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'api_port': self.port,
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'explicit_servers': [(spv_node.hostname, spv_node.port)],
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'default_servers': Config.lbryum_servers.default,
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'data_path': self.data_path,
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'known_hubs': config.known_hubs if config else KnownHubsList(),
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'hub_timeout': 30,
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'concurrent_hub_requests': 32,
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}
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},
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'wallets': [wallet_file_name]
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})
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self.manager.config = config
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self.ledger = self.manager.ledgers[self.ledger_class]
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self.wallet = self.manager.default_wallet
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if not self.wallet:
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raise ValueError('Wallet is required.')
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if seed or self.default_seed:
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Account.from_dict(
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self.ledger, self.wallet, {'seed': seed or self.default_seed}
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)
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else:
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self.wallet.generate_account(self.ledger)
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self.account = self.wallet.default_account
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if connect:
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await self.manager.start()
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async def stop(self, cleanup=True):
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try:
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await self.manager.stop()
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finally:
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cleanup and self.cleanup()
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def cleanup(self):
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shutil.rmtree(self.data_path, ignore_errors=True)
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class SPVNode:
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def __init__(self, coin_class, node_number=1):
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self.coin_class = coin_class
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self.controller = None
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self.data_path = None
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self.server: Optional[BlockchainReaderServer] = None
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self.writer: Optional[BlockProcessor] = None
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self.es_writer: Optional[ElasticWriter] = None
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self.hostname = 'localhost'
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self.port = 50001 + node_number # avoid conflict with default daemon
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self.udp_port = self.port
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self.session_timeout = 600
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self.stopped = False
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self.index_name = uuid4().hex
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async def start(self, lbcwallet_node: 'LBCWalletNode', extraconf=None):
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self.data_path = tempfile.mkdtemp()
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conf = {
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'description': '',
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'payment_address': '',
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'daily_fee': '0',
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'db_dir': self.data_path,
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'daemon_url': lbcwallet_node.rpc_url,
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'reorg_limit': 100,
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'host': self.hostname,
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'tcp_port': self.port,
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'udp_port': self.udp_port,
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'session_timeout': self.session_timeout,
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'max_query_workers': 0,
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'es_index_prefix': self.index_name,
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}
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if extraconf:
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conf.update(extraconf)
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env = Env(self.coin_class, **conf)
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self.writer = BlockProcessor(env)
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self.server = BlockchainReaderServer(env)
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self.es_writer = ElasticWriter(env)
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await self.writer.open()
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await self.writer.start()
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await asyncio.wait([self.server.start(), self.es_writer.start()])
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async def stop(self, cleanup=True):
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if self.stopped:
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return
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try:
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await self.es_writer.stop(delete_index=True)
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await self.server.stop()
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await self.writer.stop()
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self.stopped = True
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finally:
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cleanup and self.cleanup()
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def cleanup(self):
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shutil.rmtree(self.data_path, ignore_errors=True)
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class LBCDProcess(asyncio.SubprocessProtocol):
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IGNORE_OUTPUT = [
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b'keypool keep',
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b'keypool reserve',
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b'keypool return',
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b'Block submitted',
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]
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def __init__(self):
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self.ready = asyncio.Event()
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self.stopped = asyncio.Event()
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self.log = log.getChild('lbcd')
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def pipe_data_received(self, fd, data):
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if self.log and not any(ignore in data for ignore in self.IGNORE_OUTPUT):
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if b'Error:' in data:
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self.log.error(data.decode())
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else:
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self.log.info(data.decode())
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if b'Error:' in data:
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self.ready.set()
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raise SystemError(data.decode())
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if b'RPCS: RPC server listening on' in data:
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self.ready.set()
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def process_exited(self):
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self.stopped.set()
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self.ready.set()
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class WalletProcess(asyncio.SubprocessProtocol):
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IGNORE_OUTPUT = [
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]
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def __init__(self):
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self.ready = asyncio.Event()
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self.stopped = asyncio.Event()
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self.log = log.getChild('lbcwallet')
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self.transport: Optional[asyncio.transports.SubprocessTransport] = None
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def pipe_data_received(self, fd, data):
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if self.log and not any(ignore in data for ignore in self.IGNORE_OUTPUT):
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if b'Error:' in data:
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self.log.error(data.decode())
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else:
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self.log.info(data.decode())
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if b'Error:' in data:
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self.ready.set()
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raise SystemError(data.decode())
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if b'WLLT: Finished rescan' in data:
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self.ready.set()
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def process_exited(self):
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self.stopped.set()
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self.ready.set()
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class LBCDNode:
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def __init__(self, url, daemon, cli):
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self.latest_release_url = url
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self.project_dir = os.path.dirname(os.path.dirname(__file__))
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self.bin_dir = os.path.join(self.project_dir, 'bin')
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self.daemon_bin = os.path.join(self.bin_dir, daemon)
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self.cli_bin = os.path.join(self.bin_dir, cli)
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self.log = log.getChild('lbcd')
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self.data_path = tempfile.mkdtemp()
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self.protocol = None
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self.transport = None
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self.hostname = 'localhost'
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self.peerport = 29246
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self.rpcport = 29245
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self.rpcuser = 'rpcuser'
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self.rpcpassword = 'rpcpassword'
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self.stopped = True
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self.running = asyncio.Event()
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@property
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def rpc_url(self):
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return f'http://{self.rpcuser}:{self.rpcpassword}@{self.hostname}:{self.rpcport}/'
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@property
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def exists(self):
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return (
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os.path.exists(self.cli_bin) and
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os.path.exists(self.daemon_bin)
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)
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def download(self):
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uname = platform.uname()
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target_os = str.lower(uname.system)
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target_arch = str.replace(uname.machine, 'x86_64', 'amd64')
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target_platform = target_os + '_' + target_arch
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self.latest_release_url = str.replace(self.latest_release_url, 'TARGET_PLATFORM', target_platform)
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downloaded_file = os.path.join(
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self.bin_dir,
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self.latest_release_url[self.latest_release_url.rfind('/')+1:]
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)
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if not os.path.exists(self.bin_dir):
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os.mkdir(self.bin_dir)
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if not os.path.exists(downloaded_file):
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self.log.info('Downloading: %s', self.latest_release_url)
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with urllib.request.urlopen(self.latest_release_url) as response:
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with open(downloaded_file, 'wb') as out_file:
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shutil.copyfileobj(response, out_file)
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self.log.info('Extracting: %s', downloaded_file)
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if downloaded_file.endswith('.zip'):
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with zipfile.ZipFile(downloaded_file) as dotzip:
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dotzip.extractall(self.bin_dir)
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# zipfile bug https://bugs.python.org/issue15795
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os.chmod(self.cli_bin, 0o755)
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os.chmod(self.daemon_bin, 0o755)
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elif downloaded_file.endswith('.tar.gz'):
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with tarfile.open(downloaded_file) as tar:
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tar.extractall(self.bin_dir)
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return self.exists
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def ensure(self):
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return self.exists or self.download()
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async def start(self):
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assert self.ensure()
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loop = asyncio.get_event_loop()
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asyncio.get_child_watcher().attach_loop(loop)
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command = [
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self.daemon_bin,
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'--notls',
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f'--datadir={self.data_path}',
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'--regtest', f'--listen=127.0.0.1:{self.peerport}', f'--rpclisten=127.0.0.1:{self.rpcport}',
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'--txindex', f'--rpcuser={self.rpcuser}', f'--rpcpass={self.rpcpassword}'
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]
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self.log.info(' '.join(command))
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while self.stopped:
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if self.running.is_set():
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await asyncio.sleep(1)
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continue
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try:
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self.transport, self.protocol = await loop.subprocess_exec(
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LBCDProcess, *command
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)
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await self.protocol.ready.wait()
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assert not self.protocol.stopped.is_set()
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self.running.set()
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self.stopped = False
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except asyncio.CancelledError:
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self.running.clear()
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raise
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except Exception as e:
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self.running.clear()
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log.exception('failed to start lbcd', exc_info=e)
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async def stop(self, cleanup=True):
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self.stopped = True
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try:
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self.transport.terminate()
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await self.protocol.stopped.wait()
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self.transport.close()
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finally:
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self.log.info("Done shutting down " + self.daemon_bin)
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if cleanup:
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self.cleanup()
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self.running.clear()
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def cleanup(self):
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assert self.stopped
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shutil.rmtree(self.data_path, ignore_errors=True)
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class LBCWalletNode:
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P2SH_SEGWIT_ADDRESS = "p2sh-segwit"
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BECH32_ADDRESS = "bech32"
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def __init__(self, url, lbcwallet, cli):
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self.latest_release_url = url
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self.project_dir = os.path.dirname(os.path.dirname(__file__))
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self.bin_dir = os.path.join(self.project_dir, 'bin')
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self.lbcwallet_bin = os.path.join(self.bin_dir, lbcwallet)
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self.cli_bin = os.path.join(self.bin_dir, cli)
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self.log = log.getChild('lbcwallet')
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self.protocol = None
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self.transport = None
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self.hostname = 'localhost'
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self.lbcd_rpcport = 29245
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self.lbcwallet_rpcport = 29244
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self.rpcuser = 'rpcuser'
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self.rpcpassword = 'rpcpassword'
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self.data_path = tempfile.mkdtemp()
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self.stopped = True
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self.running = asyncio.Event()
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self.block_expected = 0
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self.mining_addr = ''
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@property
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def rpc_url(self):
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# FIXME: somehow the hub/sdk doesn't learn the blocks through the Walet RPC port, why?
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# return f'http://{self.rpcuser}:{self.rpcpassword}@{self.hostname}:{self.lbcwallet_rpcport}/'
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return f'http://{self.rpcuser}:{self.rpcpassword}@{self.hostname}:{self.lbcd_rpcport}/'
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def is_expected_block(self, e: BlockHeightEvent):
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return self.block_expected == e.height
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@property
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|
def exists(self):
|
|
return (
|
|
os.path.exists(self.lbcwallet_bin)
|
|
)
|
|
|
|
def download(self):
|
|
uname = platform.uname()
|
|
target_os = str.lower(uname.system)
|
|
target_arch = str.replace(uname.machine, 'x86_64', 'amd64')
|
|
target_platform = target_os + '_' + target_arch
|
|
self.latest_release_url = str.replace(self.latest_release_url, 'TARGET_PLATFORM', target_platform)
|
|
|
|
downloaded_file = os.path.join(
|
|
self.bin_dir,
|
|
self.latest_release_url[self.latest_release_url.rfind('/')+1:]
|
|
)
|
|
|
|
if not os.path.exists(self.bin_dir):
|
|
os.mkdir(self.bin_dir)
|
|
|
|
if not os.path.exists(downloaded_file):
|
|
self.log.info('Downloading: %s', self.latest_release_url)
|
|
with urllib.request.urlopen(self.latest_release_url) as response:
|
|
with open(downloaded_file, 'wb') as out_file:
|
|
shutil.copyfileobj(response, out_file)
|
|
|
|
self.log.info('Extracting: %s', downloaded_file)
|
|
|
|
if downloaded_file.endswith('.zip'):
|
|
with zipfile.ZipFile(downloaded_file) as dotzip:
|
|
dotzip.extractall(self.bin_dir)
|
|
# zipfile bug https://bugs.python.org/issue15795
|
|
os.chmod(self.lbcwallet_bin, 0o755)
|
|
|
|
elif downloaded_file.endswith('.tar.gz'):
|
|
with tarfile.open(downloaded_file) as tar:
|
|
tar.extractall(self.bin_dir)
|
|
|
|
return self.exists
|
|
|
|
def ensure(self):
|
|
return self.exists or self.download()
|
|
|
|
async def start(self):
|
|
assert self.ensure()
|
|
loop = asyncio.get_event_loop()
|
|
asyncio.get_child_watcher().attach_loop(loop)
|
|
|
|
command = [
|
|
self.lbcwallet_bin,
|
|
'--noservertls', '--noclienttls',
|
|
'--regtest',
|
|
f'--rpcconnect=127.0.0.1:{self.lbcd_rpcport}', f'--rpclisten=127.0.0.1:{self.lbcwallet_rpcport}',
|
|
'--createtemp', f'--appdata={self.data_path}',
|
|
f'--username={self.rpcuser}', f'--password={self.rpcpassword}'
|
|
]
|
|
self.log.info(' '.join(command))
|
|
while self.stopped:
|
|
if self.running.is_set():
|
|
await asyncio.sleep(1)
|
|
continue
|
|
try:
|
|
self.transport, self.protocol = await loop.subprocess_exec(
|
|
WalletProcess, *command
|
|
)
|
|
self.protocol.transport = self.transport
|
|
await self.protocol.ready.wait()
|
|
assert not self.protocol.stopped.is_set()
|
|
self.running.set()
|
|
self.stopped = False
|
|
except asyncio.CancelledError:
|
|
self.running.clear()
|
|
raise
|
|
except Exception as e:
|
|
self.running.clear()
|
|
log.exception('failed to start lbcwallet', exc_info=e)
|
|
|
|
def cleanup(self):
|
|
assert self.stopped
|
|
shutil.rmtree(self.data_path, ignore_errors=True)
|
|
|
|
async def stop(self, cleanup=True):
|
|
self.stopped = True
|
|
try:
|
|
self.transport.terminate()
|
|
await self.protocol.stopped.wait()
|
|
self.transport.close()
|
|
finally:
|
|
self.log.info("Done shutting down " + self.lbcwallet_bin)
|
|
if cleanup:
|
|
self.cleanup()
|
|
self.running.clear()
|
|
|
|
async def _cli_cmnd(self, *args):
|
|
cmnd_args = [
|
|
self.cli_bin,
|
|
f'--rpcuser={self.rpcuser}', f'--rpcpass={self.rpcpassword}', '--notls', '--regtest', '--wallet'
|
|
] + list(args)
|
|
self.log.info(' '.join(cmnd_args))
|
|
loop = asyncio.get_event_loop()
|
|
asyncio.get_child_watcher().attach_loop(loop)
|
|
process = await asyncio.create_subprocess_exec(
|
|
*cmnd_args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT
|
|
)
|
|
out, _ = await process.communicate()
|
|
result = out.decode().strip()
|
|
self.log.info(result)
|
|
if result.startswith('error code'):
|
|
raise Exception(result)
|
|
return result
|
|
|
|
def generate(self, blocks):
|
|
self.block_expected += blocks
|
|
return self._cli_cmnd('generatetoaddress', str(blocks), self.mining_addr)
|
|
|
|
def generate_to_address(self, blocks, addr):
|
|
self.block_expected += blocks
|
|
return self._cli_cmnd('generatetoaddress', str(blocks), addr)
|
|
|
|
def wallet_passphrase(self, passphrase, timeout):
|
|
return self._cli_cmnd('walletpassphrase', passphrase, str(timeout))
|
|
|
|
def invalidate_block(self, blockhash):
|
|
return self._cli_cmnd('invalidateblock', blockhash)
|
|
|
|
def get_block_hash(self, block):
|
|
return self._cli_cmnd('getblockhash', str(block))
|
|
|
|
def sendrawtransaction(self, tx):
|
|
return self._cli_cmnd('sendrawtransaction', tx)
|
|
|
|
async def get_block(self, block_hash):
|
|
return json.loads(await self._cli_cmnd('getblock', block_hash, '1'))
|
|
|
|
def get_raw_change_address(self):
|
|
return self._cli_cmnd('getrawchangeaddress')
|
|
|
|
def get_new_address(self, address_type='legacy'):
|
|
return self._cli_cmnd('getnewaddress', "", address_type)
|
|
|
|
async def get_balance(self):
|
|
return await self._cli_cmnd('getbalance')
|
|
|
|
def send_to_address(self, address, amount):
|
|
return self._cli_cmnd('sendtoaddress', address, str(amount))
|
|
|
|
def send_raw_transaction(self, tx):
|
|
return self._cli_cmnd('sendrawtransaction', tx.decode())
|
|
|
|
def create_raw_transaction(self, inputs, outputs):
|
|
return self._cli_cmnd('createrawtransaction', json.dumps(inputs), json.dumps(outputs))
|
|
|
|
async def sign_raw_transaction_with_wallet(self, tx):
|
|
# the "withwallet" portion should only come into play if we are doing segwit.
|
|
# and "withwallet" doesn't exist on lbcd yet.
|
|
result = await self._cli_cmnd('signrawtransaction', tx)
|
|
return json.loads(result)['hex'].encode()
|
|
|
|
def decode_raw_transaction(self, tx):
|
|
return self._cli_cmnd('decoderawtransaction', hexlify(tx.raw).decode())
|
|
|
|
def get_raw_transaction(self, txid):
|
|
return self._cli_cmnd('getrawtransaction', txid, '1')
|
|
|
|
|
|
class HubProcess(asyncio.SubprocessProtocol):
|
|
def __init__(self):
|
|
self.ready = asyncio.Event()
|
|
self.stopped = asyncio.Event()
|
|
self.log = log.getChild('hub')
|
|
|
|
def pipe_data_received(self, fd, data):
|
|
if self.log:
|
|
self.log.info(data.decode())
|
|
if b'error' in data.lower():
|
|
self.ready.set()
|
|
raise SystemError(data.decode())
|
|
if b'listening on' in data:
|
|
self.ready.set()
|
|
str_lines = str(data.decode()).split("\n")
|
|
for line in str_lines:
|
|
if 'releaseTime' in line:
|
|
print(line)
|
|
|
|
def process_exited(self):
|
|
self.stopped.set()
|
|
self.ready.set()
|
|
|
|
|
|
class HubNode:
|
|
|
|
def __init__(self, url, daemon, spv_node):
|
|
self.spv_node = spv_node
|
|
self.debug = False
|
|
|
|
self.latest_release_url = url
|
|
self.project_dir = os.path.dirname(os.path.dirname(__file__))
|
|
self.bin_dir = os.path.join(self.project_dir, 'bin')
|
|
self.daemon_bin = os.path.join(self.bin_dir, daemon)
|
|
self.cli_bin = os.path.join(self.bin_dir, daemon)
|
|
self.log = log.getChild('hub')
|
|
self.transport = None
|
|
self.protocol = None
|
|
self.hostname = 'localhost'
|
|
self.rpcport = 50051 # avoid conflict with default rpc port
|
|
self.stopped = False
|
|
self.running = asyncio.Event()
|
|
|
|
@property
|
|
def exists(self):
|
|
return (
|
|
os.path.exists(self.cli_bin) and
|
|
os.path.exists(self.daemon_bin)
|
|
)
|
|
|
|
def download(self):
|
|
downloaded_file = os.path.join(
|
|
self.bin_dir,
|
|
self.latest_release_url[self.latest_release_url.rfind('/')+1:]
|
|
)
|
|
|
|
if not os.path.exists(self.bin_dir):
|
|
os.mkdir(self.bin_dir)
|
|
|
|
if not os.path.exists(downloaded_file):
|
|
self.log.info('Downloading: %s', self.latest_release_url)
|
|
with urllib.request.urlopen(self.latest_release_url) as response:
|
|
with open(downloaded_file, 'wb') as out_file:
|
|
shutil.copyfileobj(response, out_file)
|
|
|
|
self.log.info('Extracting: %s', downloaded_file)
|
|
|
|
if downloaded_file.endswith('.zip'):
|
|
with zipfile.ZipFile(downloaded_file) as dotzip:
|
|
dotzip.extractall(self.bin_dir)
|
|
# zipfile bug https://bugs.python.org/issue15795
|
|
os.chmod(self.cli_bin, 0o755)
|
|
os.chmod(self.daemon_bin, 0o755)
|
|
|
|
elif downloaded_file.endswith('.tar.gz'):
|
|
with tarfile.open(downloaded_file) as tar:
|
|
tar.extractall(self.bin_dir)
|
|
|
|
os.chmod(self.daemon_bin, 0o755)
|
|
|
|
return self.exists
|
|
|
|
def ensure(self):
|
|
return self.exists or self.download()
|
|
|
|
async def start(self):
|
|
assert self.ensure()
|
|
loop = asyncio.get_event_loop()
|
|
asyncio.get_child_watcher().attach_loop(loop)
|
|
command = [
|
|
self.daemon_bin, 'serve', '--esindex', self.spv_node.index_name + 'claims', '--debug'
|
|
]
|
|
self.log.info(' '.join(command))
|
|
while not self.stopped:
|
|
if self.running.is_set():
|
|
await asyncio.sleep(1)
|
|
continue
|
|
try:
|
|
if not self.debug:
|
|
self.transport, self.protocol = await loop.subprocess_exec(
|
|
HubProcess, *command
|
|
)
|
|
await self.protocol.ready.wait()
|
|
assert not self.protocol.stopped.is_set()
|
|
self.running.set()
|
|
except asyncio.CancelledError:
|
|
self.running.clear()
|
|
raise
|
|
except Exception as e:
|
|
self.running.clear()
|
|
log.exception('failed to start hub', exc_info=e)
|
|
|
|
async def stop(self, cleanup=True):
|
|
self.stopped = True
|
|
try:
|
|
if not self.debug:
|
|
self.transport.terminate()
|
|
await self.protocol.stopped.wait()
|
|
self.transport.close()
|
|
finally:
|
|
if cleanup:
|
|
self.cleanup()
|
|
|
|
def cleanup(self):
|
|
pass
|