import math import os import asyncio import logging import binascii import typing import base58 from aioupnp import __version__ as aioupnp_version from aioupnp.upnp import UPnP from aioupnp.fault import UPnPError from lbry import utils from lbry.dht.node import Node from lbry.dht.peer import is_valid_public_ipv4 from lbry.dht.blob_announcer import BlobAnnouncer from lbry.blob.blob_manager import BlobManager from lbry.blob.disk_space_manager import DiskSpaceManager from lbry.blob_exchange.server import BlobServer from lbry.stream.background_downloader import BackgroundDownloader from lbry.stream.stream_manager import StreamManager from lbry.file.file_manager import FileManager from lbry.extras.daemon.component import Component from lbry.extras.daemon.exchange_rate_manager import ExchangeRateManager from lbry.extras.daemon.storage import SQLiteStorage from lbry.torrent.torrent_manager import TorrentManager from lbry.wallet import WalletManager from lbry.wallet.usage_payment import WalletServerPayer from lbry.torrent.tracker import TrackerClient try: from lbry.torrent.session import TorrentSession except ImportError: TorrentSession = None log = logging.getLogger(__name__) # settings must be initialized before this file is imported DATABASE_COMPONENT = "database" BLOB_COMPONENT = "blob_manager" WALLET_COMPONENT = "wallet" WALLET_SERVER_PAYMENTS_COMPONENT = "wallet_server_payments" DHT_COMPONENT = "dht" HASH_ANNOUNCER_COMPONENT = "hash_announcer" FILE_MANAGER_COMPONENT = "file_manager" DISK_SPACE_COMPONENT = "disk_space" BACKGROUND_DOWNLOADER_COMPONENT = "background_downloader" PEER_PROTOCOL_SERVER_COMPONENT = "peer_protocol_server" UPNP_COMPONENT = "upnp" EXCHANGE_RATE_MANAGER_COMPONENT = "exchange_rate_manager" TRACKER_ANNOUNCER_COMPONENT = "tracker_announcer_component" LIBTORRENT_COMPONENT = "libtorrent_component" class DatabaseComponent(Component): component_name = DATABASE_COMPONENT def __init__(self, component_manager): super().__init__(component_manager) self.storage = None @property def component(self): return self.storage @staticmethod def get_current_db_revision(): return 15 @property def revision_filename(self): return os.path.join(self.conf.data_dir, 'db_revision') def _write_db_revision_file(self, version_num): with open(self.revision_filename, mode='w') as db_revision: db_revision.write(str(version_num)) async def start(self): # check directories exist, create them if they don't log.info("Loading databases") if not os.path.exists(self.revision_filename): log.info("db_revision file not found. Creating it") self._write_db_revision_file(self.get_current_db_revision()) # check the db migration and run any needed migrations with open(self.revision_filename, "r") as revision_read_handle: old_revision = int(revision_read_handle.read().strip()) if old_revision > self.get_current_db_revision(): raise Exception('This version of lbrynet is not compatible with the database\n' 'Your database is revision %i, expected %i' % (old_revision, self.get_current_db_revision())) if old_revision < self.get_current_db_revision(): from lbry.extras.daemon.migrator import dbmigrator # pylint: disable=import-outside-toplevel log.info("Upgrading your databases (revision %i to %i)", old_revision, self.get_current_db_revision()) await asyncio.get_event_loop().run_in_executor( None, dbmigrator.migrate_db, self.conf, old_revision, self.get_current_db_revision() ) self._write_db_revision_file(self.get_current_db_revision()) log.info("Finished upgrading the databases.") self.storage = SQLiteStorage( self.conf, os.path.join(self.conf.data_dir, "lbrynet.sqlite") ) await self.storage.open() async def stop(self): await self.storage.close() self.storage = None class WalletComponent(Component): component_name = WALLET_COMPONENT depends_on = [DATABASE_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.wallet_manager = None @property def component(self): return self.wallet_manager async def get_status(self): if self.wallet_manager is None: return is_connected = self.wallet_manager.ledger.network.is_connected sessions = [] connected = None if is_connected: addr, port = self.wallet_manager.ledger.network.client.server connected = f"{addr}:{port}" sessions.append(self.wallet_manager.ledger.network.client) result = { 'connected': connected, 'connected_features': self.wallet_manager.ledger.network.server_features, 'servers': [ { 'host': session.server[0], 'port': session.server[1], 'latency': session.connection_latency, 'availability': session.available, } for session in sessions ], 'known_servers': len(self.wallet_manager.ledger.network.known_hubs), 'available_servers': 1 if is_connected else 0 } if self.wallet_manager.ledger.network.remote_height: local_height = self.wallet_manager.ledger.local_height_including_downloaded_height disk_height = len(self.wallet_manager.ledger.headers) remote_height = self.wallet_manager.ledger.network.remote_height download_height, target_height = local_height - disk_height, remote_height - disk_height if target_height > 0: progress = min(max(math.ceil(float(download_height) / float(target_height) * 100), 0), 100) else: progress = 100 best_hash = await self.wallet_manager.get_best_blockhash() result.update({ 'headers_synchronization_progress': progress, 'blocks': max(local_height, 0), 'blocks_behind': max(remote_height - local_height, 0), 'best_blockhash': best_hash, }) return result async def start(self): log.info("Starting wallet") self.wallet_manager = await WalletManager.from_lbrynet_config(self.conf) await self.wallet_manager.start() async def stop(self): await self.wallet_manager.stop() self.wallet_manager = None class WalletServerPaymentsComponent(Component): component_name = WALLET_SERVER_PAYMENTS_COMPONENT depends_on = [WALLET_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.usage_payment_service = WalletServerPayer( max_fee=self.conf.max_wallet_server_fee, analytics_manager=self.component_manager.analytics_manager, ) @property def component(self) -> typing.Optional[WalletServerPayer]: return self.usage_payment_service async def start(self): wallet_manager = self.component_manager.get_component(WALLET_COMPONENT) await self.usage_payment_service.start(wallet_manager.ledger, wallet_manager.default_wallet) async def stop(self): await self.usage_payment_service.stop() async def get_status(self): return { 'max_fee': self.usage_payment_service.max_fee, 'running': self.usage_payment_service.running } class BlobComponent(Component): component_name = BLOB_COMPONENT depends_on = [DATABASE_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.blob_manager: typing.Optional[BlobManager] = None @property def component(self) -> typing.Optional[BlobManager]: return self.blob_manager async def start(self): storage = self.component_manager.get_component(DATABASE_COMPONENT) data_store = None if DHT_COMPONENT not in self.component_manager.skip_components: dht_node: Node = self.component_manager.get_component(DHT_COMPONENT) if dht_node: data_store = dht_node.protocol.data_store blob_dir = os.path.join(self.conf.data_dir, 'blobfiles') if not os.path.isdir(blob_dir): os.mkdir(blob_dir) self.blob_manager = BlobManager(self.component_manager.loop, blob_dir, storage, self.conf, data_store) return await self.blob_manager.setup() async def stop(self): self.blob_manager.stop() async def get_status(self): count = 0 if self.blob_manager: count = len(self.blob_manager.completed_blob_hashes) return { 'finished_blobs': count, 'connections': {} if not self.blob_manager else self.blob_manager.connection_manager.status } class DHTComponent(Component): component_name = DHT_COMPONENT depends_on = [UPNP_COMPONENT, DATABASE_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.dht_node: typing.Optional[Node] = None self.external_udp_port = None self.external_peer_port = None @property def component(self) -> typing.Optional[Node]: return self.dht_node async def get_status(self): return { 'node_id': None if not self.dht_node else binascii.hexlify(self.dht_node.protocol.node_id), 'peers_in_routing_table': 0 if not self.dht_node else len(self.dht_node.protocol.routing_table.get_peers()) } def get_node_id(self): node_id_filename = os.path.join(self.conf.data_dir, "node_id") if os.path.isfile(node_id_filename): with open(node_id_filename, "r") as node_id_file: return base58.b58decode(str(node_id_file.read()).strip()) node_id = utils.generate_id() with open(node_id_filename, "w") as node_id_file: node_id_file.write(base58.b58encode(node_id).decode()) return node_id async def start(self): log.info("start the dht") upnp_component = self.component_manager.get_component(UPNP_COMPONENT) self.external_peer_port = upnp_component.upnp_redirects.get("TCP", self.conf.tcp_port) self.external_udp_port = upnp_component.upnp_redirects.get("UDP", self.conf.udp_port) external_ip = upnp_component.external_ip storage = self.component_manager.get_component(DATABASE_COMPONENT) if not external_ip: external_ip, _ = await utils.get_external_ip(self.conf.lbryum_servers) if not external_ip: log.warning("failed to get external ip") self.dht_node = Node( self.component_manager.loop, self.component_manager.peer_manager, node_id=self.get_node_id(), internal_udp_port=self.conf.udp_port, udp_port=self.external_udp_port, external_ip=external_ip, peer_port=self.external_peer_port, rpc_timeout=self.conf.node_rpc_timeout, split_buckets_under_index=self.conf.split_buckets_under_index, storage=storage ) self.dht_node.start(self.conf.network_interface, self.conf.known_dht_nodes) log.info("Started the dht") async def stop(self): self.dht_node.stop() class HashAnnouncerComponent(Component): component_name = HASH_ANNOUNCER_COMPONENT depends_on = [DHT_COMPONENT, DATABASE_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.hash_announcer: typing.Optional[BlobAnnouncer] = None @property def component(self) -> typing.Optional[BlobAnnouncer]: return self.hash_announcer async def start(self): storage = self.component_manager.get_component(DATABASE_COMPONENT) dht_node = self.component_manager.get_component(DHT_COMPONENT) self.hash_announcer = BlobAnnouncer(self.component_manager.loop, dht_node, storage) self.hash_announcer.start(self.conf.concurrent_blob_announcers) log.info("Started blob announcer") async def stop(self): self.hash_announcer.stop() log.info("Stopped blob announcer") async def get_status(self): return { 'announce_queue_size': 0 if not self.hash_announcer else len(self.hash_announcer.announce_queue) } class FileManagerComponent(Component): component_name = FILE_MANAGER_COMPONENT depends_on = [BLOB_COMPONENT, DATABASE_COMPONENT, WALLET_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.file_manager: typing.Optional[FileManager] = None @property def component(self) -> typing.Optional[FileManager]: return self.file_manager async def get_status(self): if not self.file_manager: return return { 'managed_files': len(self.file_manager.get_filtered()), } async def start(self): blob_manager = self.component_manager.get_component(BLOB_COMPONENT) storage = self.component_manager.get_component(DATABASE_COMPONENT) wallet = self.component_manager.get_component(WALLET_COMPONENT) node = self.component_manager.get_component(DHT_COMPONENT) \ if self.component_manager.has_component(DHT_COMPONENT) else None try: torrent = self.component_manager.get_component(LIBTORRENT_COMPONENT) if TorrentSession else None except NameError: torrent = None log.info('Starting the file manager') loop = asyncio.get_event_loop() self.file_manager = FileManager( loop, self.conf, wallet, storage, self.component_manager.analytics_manager ) self.file_manager.source_managers['stream'] = StreamManager( loop, self.conf, blob_manager, wallet, storage, node, ) if TorrentSession and LIBTORRENT_COMPONENT not in self.conf.components_to_skip: self.file_manager.source_managers['torrent'] = TorrentManager( loop, self.conf, torrent, storage, self.component_manager.analytics_manager ) await self.file_manager.start() log.info('Done setting up file manager') async def stop(self): self.file_manager.stop() class BackgroundDownloaderComponent(Component): MIN_PREFIX_COLLIDING_BITS = 8 component_name = BACKGROUND_DOWNLOADER_COMPONENT depends_on = [DATABASE_COMPONENT, BLOB_COMPONENT, DISK_SPACE_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.background_task: typing.Optional[asyncio.Task] = None self.download_loop_delay_seconds = 60 self.ongoing_download: typing.Optional[asyncio.Task] = None self.space_manager: typing.Optional[DiskSpaceManager] = None self.blob_manager: typing.Optional[BlobManager] = None self.background_downloader: typing.Optional[BackgroundDownloader] = None self.dht_node: typing.Optional[Node] = None self.space_available: typing.Optional[int] = None @property def is_busy(self): return bool(self.ongoing_download and not self.ongoing_download.done()) @property def component(self) -> 'BackgroundDownloaderComponent': return self async def get_status(self): return {'running': self.background_task is not None and not self.background_task.done(), 'available_free_space_mb': self.space_available, 'ongoing_download': self.is_busy} async def download_blobs_in_background(self): while True: self.space_available = await self.space_manager.get_free_space_mb(True) if not self.is_busy and self.space_available > 10: self._download_next_close_blob_hash() await asyncio.sleep(self.download_loop_delay_seconds) def _download_next_close_blob_hash(self): node_id = self.dht_node.protocol.node_id for blob_hash in self.dht_node.stored_blob_hashes: if blob_hash.hex() in self.blob_manager.completed_blob_hashes: continue if utils.get_colliding_prefix_bits(node_id, blob_hash) >= self.MIN_PREFIX_COLLIDING_BITS: self.ongoing_download = asyncio.create_task(self.background_downloader.download_blobs(blob_hash.hex())) return async def start(self): self.space_manager: DiskSpaceManager = self.component_manager.get_component(DISK_SPACE_COMPONENT) if not self.component_manager.has_component(DHT_COMPONENT): return self.dht_node = self.component_manager.get_component(DHT_COMPONENT) self.blob_manager = self.component_manager.get_component(BLOB_COMPONENT) storage = self.component_manager.get_component(DATABASE_COMPONENT) self.background_downloader = BackgroundDownloader(self.conf, storage, self.blob_manager, self.dht_node) self.background_task = asyncio.create_task(self.download_blobs_in_background()) async def stop(self): if self.ongoing_download and not self.ongoing_download.done(): self.ongoing_download.cancel() if self.background_task: self.background_task.cancel() class DiskSpaceComponent(Component): component_name = DISK_SPACE_COMPONENT depends_on = [DATABASE_COMPONENT, BLOB_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.disk_space_manager: typing.Optional[DiskSpaceManager] = None @property def component(self) -> typing.Optional[DiskSpaceManager]: return self.disk_space_manager async def get_status(self): if self.disk_space_manager: space_used = await self.disk_space_manager.get_space_used_mb(cached=True) return { 'total_used_mb': space_used['total'], 'published_blobs_storage_used_mb': space_used['private_storage'], 'content_blobs_storage_used_mb': space_used['content_storage'], 'seed_blobs_storage_used_mb': space_used['network_storage'], 'running': self.disk_space_manager.running, } return {'space_used': '0', 'network_seeding_space_used': '0', 'running': False} async def start(self): db = self.component_manager.get_component(DATABASE_COMPONENT) blob_manager = self.component_manager.get_component(BLOB_COMPONENT) self.disk_space_manager = DiskSpaceManager( self.conf, db, blob_manager, analytics=self.component_manager.analytics_manager ) await self.disk_space_manager.start() async def stop(self): await self.disk_space_manager.stop() class TorrentComponent(Component): component_name = LIBTORRENT_COMPONENT def __init__(self, component_manager): super().__init__(component_manager) self.torrent_session = None @property def component(self) -> typing.Optional[TorrentSession]: return self.torrent_session async def get_status(self): if not self.torrent_session: return return { 'running': True, # TODO: what to return here? } async def start(self): if TorrentSession: self.torrent_session = TorrentSession(asyncio.get_event_loop(), None) await self.torrent_session.bind() # TODO: specify host/port async def stop(self): if self.torrent_session: await self.torrent_session.pause() class PeerProtocolServerComponent(Component): component_name = PEER_PROTOCOL_SERVER_COMPONENT depends_on = [UPNP_COMPONENT, BLOB_COMPONENT, WALLET_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.blob_server: typing.Optional[BlobServer] = None @property def component(self) -> typing.Optional[BlobServer]: return self.blob_server async def start(self): log.info("start blob server") blob_manager: BlobManager = self.component_manager.get_component(BLOB_COMPONENT) wallet: WalletManager = self.component_manager.get_component(WALLET_COMPONENT) peer_port = self.conf.tcp_port address = await wallet.get_unused_address() self.blob_server = BlobServer(asyncio.get_event_loop(), blob_manager, address) self.blob_server.start_server(peer_port, interface=self.conf.network_interface) await self.blob_server.started_listening.wait() async def stop(self): if self.blob_server: self.blob_server.stop_server() class UPnPComponent(Component): component_name = UPNP_COMPONENT def __init__(self, component_manager): super().__init__(component_manager) self._int_peer_port = self.conf.tcp_port self._int_dht_node_port = self.conf.udp_port self.use_upnp = self.conf.use_upnp self.upnp: typing.Optional[UPnP] = None self.upnp_redirects = {} self.external_ip: typing.Optional[str] = None self._maintain_redirects_task = None @property def component(self) -> 'UPnPComponent': return self async def _repeatedly_maintain_redirects(self, now=True): while True: if now: await self._maintain_redirects() await asyncio.sleep(360, loop=self.component_manager.loop) async def _maintain_redirects(self): # setup the gateway if necessary if not self.upnp: try: self.upnp = await UPnP.discover(loop=self.component_manager.loop) log.info("found upnp gateway: %s", self.upnp.gateway.manufacturer_string) except Exception as err: if isinstance(err, asyncio.CancelledError): # TODO: remove when updated to 3.8 raise log.warning("upnp discovery failed: %s", err) self.upnp = None # update the external ip external_ip = None if self.upnp: try: external_ip = await self.upnp.get_external_ip() if external_ip != "0.0.0.0" and not self.external_ip: log.info("got external ip from UPnP: %s", external_ip) except (asyncio.TimeoutError, UPnPError, NotImplementedError): pass if external_ip and not is_valid_public_ipv4(external_ip): log.warning("UPnP returned a private/reserved ip - %s, checking lbry.com fallback", external_ip) external_ip, _ = await utils.get_external_ip(self.conf.lbryum_servers) if self.external_ip and self.external_ip != external_ip: log.info("external ip changed from %s to %s", self.external_ip, external_ip) if external_ip: self.external_ip = external_ip dht_component = self.component_manager.get_component(DHT_COMPONENT) if dht_component: dht_node = dht_component.component dht_node.protocol.external_ip = external_ip # assert self.external_ip is not None # TODO: handle going/starting offline if not self.upnp_redirects and self.upnp: # setup missing redirects log.info("add UPnP port mappings") upnp_redirects = {} if PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components: try: upnp_redirects["TCP"] = await self.upnp.get_next_mapping( self._int_peer_port, "TCP", "LBRY peer port", self._int_peer_port ) except (UPnPError, asyncio.TimeoutError, NotImplementedError): pass if DHT_COMPONENT not in self.component_manager.skip_components: try: upnp_redirects["UDP"] = await self.upnp.get_next_mapping( self._int_dht_node_port, "UDP", "LBRY DHT port", self._int_dht_node_port ) except (UPnPError, asyncio.TimeoutError, NotImplementedError): pass if upnp_redirects: log.info("set up redirects: %s", upnp_redirects) self.upnp_redirects.update(upnp_redirects) elif self.upnp: # check existing redirects are still active found = set() mappings = await self.upnp.get_redirects() for mapping in mappings: proto = mapping.protocol if proto in self.upnp_redirects and mapping.external_port == self.upnp_redirects[proto]: if mapping.lan_address == self.upnp.lan_address: found.add(proto) if 'UDP' not in found and DHT_COMPONENT not in self.component_manager.skip_components: try: udp_port = await self.upnp.get_next_mapping(self._int_dht_node_port, "UDP", "LBRY DHT port") self.upnp_redirects['UDP'] = udp_port log.info("refreshed upnp redirect for dht port: %i", udp_port) except (asyncio.TimeoutError, UPnPError, NotImplementedError): del self.upnp_redirects['UDP'] if 'TCP' not in found and PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components: try: tcp_port = await self.upnp.get_next_mapping(self._int_peer_port, "TCP", "LBRY peer port") self.upnp_redirects['TCP'] = tcp_port log.info("refreshed upnp redirect for peer port: %i", tcp_port) except (asyncio.TimeoutError, UPnPError, NotImplementedError): del self.upnp_redirects['TCP'] if ('TCP' in self.upnp_redirects and PEER_PROTOCOL_SERVER_COMPONENT not in self.component_manager.skip_components) and \ ('UDP' in self.upnp_redirects and DHT_COMPONENT not in self.component_manager.skip_components): if self.upnp_redirects: log.debug("upnp redirects are still active") async def start(self): log.info("detecting external ip") if not self.use_upnp: self.external_ip, _ = await utils.get_external_ip(self.conf.lbryum_servers) return success = False await self._maintain_redirects() if self.upnp: if not self.upnp_redirects and not all( x in self.component_manager.skip_components for x in (DHT_COMPONENT, PEER_PROTOCOL_SERVER_COMPONENT) ): log.error("failed to setup upnp") else: success = True if self.upnp_redirects: log.debug("set up upnp port redirects for gateway: %s", self.upnp.gateway.manufacturer_string) else: log.error("failed to setup upnp") if not self.external_ip: self.external_ip, probed_url = await utils.get_external_ip(self.conf.lbryum_servers) if self.external_ip: log.info("detected external ip using %s fallback", probed_url) if self.component_manager.analytics_manager: self.component_manager.loop.create_task( self.component_manager.analytics_manager.send_upnp_setup_success_fail( success, await self.get_status() ) ) self._maintain_redirects_task = self.component_manager.loop.create_task( self._repeatedly_maintain_redirects(now=False) ) async def stop(self): if self.upnp_redirects: log.info("Removing upnp redirects: %s", self.upnp_redirects) await asyncio.wait([ self.upnp.delete_port_mapping(port, protocol) for protocol, port in self.upnp_redirects.items() ], loop=self.component_manager.loop) if self._maintain_redirects_task and not self._maintain_redirects_task.done(): self._maintain_redirects_task.cancel() async def get_status(self): return { 'aioupnp_version': aioupnp_version, 'redirects': self.upnp_redirects, 'gateway': 'No gateway found' if not self.upnp else self.upnp.gateway.manufacturer_string, 'dht_redirect_set': 'UDP' in self.upnp_redirects, 'peer_redirect_set': 'TCP' in self.upnp_redirects, 'external_ip': self.external_ip } class ExchangeRateManagerComponent(Component): component_name = EXCHANGE_RATE_MANAGER_COMPONENT def __init__(self, component_manager): super().__init__(component_manager) self.exchange_rate_manager = ExchangeRateManager() @property def component(self) -> ExchangeRateManager: return self.exchange_rate_manager async def start(self): self.exchange_rate_manager.start() async def stop(self): self.exchange_rate_manager.stop() class TrackerAnnouncerComponent(Component): component_name = TRACKER_ANNOUNCER_COMPONENT depends_on = [FILE_MANAGER_COMPONENT] def __init__(self, component_manager): super().__init__(component_manager) self.file_manager = None self.announce_task = None self.tracker_client: typing.Optional[TrackerClient] = None @property def component(self): return self @property def running(self): return self._running and self.announce_task and not self.announce_task.done() async def announce_forever(self): while True: to_sleep = 60.0 for file in self.file_manager.get_filtered(): if not file.downloader: continue self.tracker_client.on_hash(bytes.fromhex(file.sd_hash)) await asyncio.sleep(to_sleep) async def start(self): node = self.component_manager.get_component(DHT_COMPONENT) \ if self.component_manager.has_component(DHT_COMPONENT) else None node_id = node.protocol.node_id if node else None self.tracker_client = TrackerClient(node_id, self.conf.tcp_port, self.conf.tracker_servers) await self.tracker_client.start() self.file_manager = self.component_manager.get_component(FILE_MANAGER_COMPONENT) self.announce_task = asyncio.create_task(self.announce_forever()) async def stop(self): self.file_manager = None if self.announce_task and not self.announce_task.done(): self.announce_task.cancel() self.announce_task = None self.tracker_client.stop()