import binascii from lbrynet.core.StreamDescriptor import StreamMetadata from lbrynet.cryptstream.client.CryptStreamDownloader import CryptStreamDownloader from zope.interface import implements from lbrynet.lbrylive.client.LiveStreamMetadataHandler import LiveStreamMetadataHandler from lbrynet.lbrylive.client.LiveStreamProgressManager import LiveStreamProgressManager import os from lbrynet.lbrylive.StreamDescriptor import save_sd_info from lbrynet.lbrylive.PaymentRateManager import LiveStreamPaymentRateManager from twisted.internet import defer, threads # , process from lbrynet.interfaces import IStreamDownloaderFactory from lbrynet.lbrylive.StreamDescriptor import LiveStreamType class _LiveStreamDownloader(CryptStreamDownloader): def __init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, stream_info_manager, payment_rate_manager, wallet, upload_allowed): CryptStreamDownloader.__init__(self, peer_finder, rate_limiter, blob_manager, payment_rate_manager, wallet, upload_allowed) self.stream_hash = stream_hash self.stream_info_manager = stream_info_manager self.public_key = None def set_stream_info(self): if self.public_key is None and self.key is None: d = self.stream_info_manager.get_stream_info(self.stream_hash) def set_stream_info(stream_info): public_key, key, stream_name = stream_info self.public_key = public_key self.key = binascii.unhexlify(key) self.stream_name = binascii.unhexlify(stream_name) d.addCallback(set_stream_info) return d else: return defer.succeed(True) class LiveStreamDownloader(_LiveStreamDownloader): def __init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, stream_info_manager, payment_rate_manager, wallet, upload_allowed): _LiveStreamDownloader.__init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, stream_info_manager, payment_rate_manager, wallet, upload_allowed) #self.writer = process.ProcessWriter(reactor, self, 'write', 1) def _get_metadata_handler(self, download_manager): return LiveStreamMetadataHandler(self.stream_hash, self.stream_info_manager, self.peer_finder, self.public_key, False, self.payment_rate_manager, self.wallet, download_manager, 10) def _get_progress_manager(self, download_manager): return LiveStreamProgressManager(self._finished_downloading, self.blob_manager, download_manager, delete_blob_after_finished=True, download_whole=False, max_before_skip_ahead=10) def _get_write_func(self): def write_func(data): if self.stopped is False: #self.writer.write(data) pass return write_func class FullLiveStreamDownloader(_LiveStreamDownloader): def __init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, stream_info_manager, payment_rate_manager, wallet, upload_allowed): _LiveStreamDownloader.__init__(self, stream_hash, peer_finder, rate_limiter, blob_manager, stream_info_manager, payment_rate_manager, wallet, upload_allowed) self.file_handle = None self.file_name = None def set_stream_info(self): d = _LiveStreamDownloader.set_stream_info(self) def set_file_name_if_unset(): if not self.file_name: if not self.stream_name: self.stream_name = "_" self.file_name = os.path.basename(self.stream_name) d.addCallback(lambda _: set_file_name_if_unset()) return d def stop(self, err=None): d = self._close_file() d.addBoth(lambda _: _LiveStreamDownloader.stop(self, err)) return d def _start(self): if self.file_handle is None: d = self._open_file() else: d = defer.succeed(True) d.addCallback(lambda _: _LiveStreamDownloader._start(self)) return d def _open_file(self): def open_file(): self.file_handle = open(self.file_name, 'wb') return threads.deferToThread(open_file) def _get_metadata_handler(self, download_manager): return LiveStreamMetadataHandler(self.stream_hash, self.stream_info_manager, self.peer_finder, self.public_key, True, self.payment_rate_manager, self.wallet, download_manager) def _get_primary_request_creators(self, download_manager): return [download_manager.blob_requester, download_manager.blob_info_finder] def _get_write_func(self): def write_func(data): if self.stopped is False: self.file_handle.write(data) return write_func def _close_file(self): def close_file(): if self.file_handle is not None: self.file_handle.close() self.file_handle = None return threads.deferToThread(close_file) class FullLiveStreamDownloaderFactory(object): implements(IStreamDownloaderFactory) def __init__(self, peer_finder, rate_limiter, blob_manager, stream_info_manager, wallet, default_payment_rate_manager): self.peer_finder = peer_finder self.rate_limiter = rate_limiter self.blob_manager = blob_manager self.stream_info_manager = stream_info_manager self.wallet = wallet self.default_payment_rate_manager = default_payment_rate_manager def can_download(self, sd_validator): return True def make_downloader(self, metadata, options, payment_rate_manager): # TODO: check options for payment rate manager parameters payment_rate_manager = LiveStreamPaymentRateManager(self.default_payment_rate_manager, payment_rate_manager) def save_source_if_blob(stream_hash): if metadata.metadata_source == StreamMetadata.FROM_BLOB: d = self.stream_info_manager.save_sd_blob_hash_to_stream(stream_hash, metadata.source_blob_hash) else: d = defer.succeed(True) d.addCallback(lambda _: stream_hash) return d d = save_sd_info(self.stream_info_manager, metadata.validator.raw_info) d.addCallback(save_source_if_blob) def create_downloader(stream_hash): stream_downloader = FullLiveStreamDownloader(stream_hash, self.peer_finder, self.rate_limiter, self.blob_manager, self.stream_info_manager, payment_rate_manager, self.wallet, True) # TODO: change upload_allowed=True above to something better d = stream_downloader.set_stream_info() d.addCallback(lambda _: stream_downloader) return d d.addCallback(create_downloader) return d def add_full_live_stream_downloader_to_sd_identifier(session, stream_info_manager, sd_identifier, base_live_stream_payment_rate_manager): downloader_factory = FullLiveStreamDownloaderFactory(session.peer_finder, session.rate_limiter, session.blob_manager, stream_info_manager, session.wallet, base_live_stream_payment_rate_manager) sd_identifier.add_stream_downloader_factory(LiveStreamType, downloader_factory)