59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
import logging
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import random
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from twisted.internet import defer
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from twisted.internet import reactor
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from lbrynet.core import Error
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from lbrynet.core import StreamDescriptor
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from lbrynet.metadata import Metadata
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log = logging.getLogger(__name__)
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class Name(object):
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def __init__(self, name):
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self.name = name
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self.sd_hash = None
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self.sd_blob = None
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@defer.inlineCallbacks
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def setSdHash(self, wallet):
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try:
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stream = yield wallet.get_stream_info_for_name(self.name)
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metadata = Metadata.Metadata(stream)
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self.sd_hash = _getSdHash(metadata)
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except (Error.InvalidStreamInfoError, AssertionError):
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pass
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except Exception:
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log.exception('What happened')
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@defer.inlineCallbacks
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def download_sd_blob(self, session):
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print('Trying to get sd_blob for {} using {}'.format(self.name, self.sd_hash))
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try:
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blob = yield download_sd_blob_with_timeout(
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session, self.sd_hash, session.payment_rate_manager)
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self.sd_blob = blob
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yield self._after_download(blob)
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print('Downloaded sd_blob for {} using {}'.format(self.name, self.sd_hash))
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except defer.TimeoutError:
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print('Downloading sd_blob for {} timed-out'.format(self.name))
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# swallow errors from the timeout
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pass
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except Exception:
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log.exception('Failed to download {}'.format(self.name))
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def _after_download(self, blob):
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pass
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def _getSdHash(metadata):
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return metadata['sources']['lbry_sd_hash']
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def download_sd_blob_with_timeout(session, sd_hash, payment_rate_manager):
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d = StreamDescriptor.download_sd_blob(session, sd_hash, payment_rate_manager)
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d.addTimeout(random.randint(10, 30), reactor)
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return d
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