def download_sd_blob(session, blob_hash, payment_rate_manager, timeout=None):
"""
Downloads a single blob from the network
@param session:
@param blob_hash:
@param payment_rate_manager:
@return: An object of type HashBlob
"""
downloader = StandaloneBlobDownloader(blob_hash, session.blob_manager,
session.peer_finder,
session.rate_limiter,
payment_rate_manager, session.wallet,
timeout)
sd_blob = yield downloader.download()
sd_reader = BlobStreamDescriptorReader(sd_blob)
sd_info = yield sd_reader.get_info()
try:
validate_descriptor(sd_info)
except InvalidStreamDescriptorError as err:
yield session.blob_manager.delete_blobs([blob_hash])
raise err
raw_sd = yield sd_reader._get_raw_data()
yield session.blob_manager.storage.add_known_blob(blob_hash, len(raw_sd))
yield save_sd_info(session.blob_manager, sd_blob.blob_hash, sd_info)
defer.returnValue(sd_blob)
def download_blob(blob_hash):
prm = self.session.payment_rate_manager
downloader = StandaloneBlobDownloader(blob_hash,
self.session.blob_manager,
peer_finder, rate_limiter,
prm, wallet)
d = downloader.download()
return d
def download_sd_file_from_hash(self, sd_hash):
downloader = StandaloneBlobDownloader(sd_hash,
self.session.blob_manager,
self.session.peer_finder,
self.session.rate_limiter,
self.session.wallet)
d = downloader.download()
return d
def download_sd_blob(session, blob_hash, payment_rate_manager):
"""
Downloads a single blob from the network
@param session:
@param blob_hash:
@param payment_rate_manager:
@return: An object of type HashBlob
"""
downloader = StandaloneBlobDownloader(blob_hash, session.blob_manager, session.peer_finder,
session.rate_limiter, payment_rate_manager, session.wallet)
return downloader.download()
def download_blob_from_peer(self, peer, timeout, blob_hash, blob_manager):
log.debug("Try to download %s from %s", blob_hash, peer.host)
blob_manager = blob_manager
blob = BlobCallback(blob_manager.blob_dir, blob_hash, timeout)
download_manager = SingleBlobDownloadManager(blob)
peer_finder = SinglePeerFinder(peer)
requester = BlobRequester(blob_manager, peer_finder,
self._payment_rate_manager, self._wallet,
download_manager)
downloader = StandaloneBlobDownloader(blob_hash,
blob_manager,
peer_finder,
self._rate_limiter,
self._payment_rate_manager,
self._wallet,
timeout=timeout)
info_exchanger = self._wallet.get_info_exchanger()
connection_manager = ConnectionManager(downloader, self._rate_limiter,
[requester], [info_exchanger])
connection_manager.start()
result = yield blob.callback
if not result:
log.debug("Failed to downloaded %s from %s", blob_hash[:16],
peer.host)
yield connection_manager.stop()
defer.returnValue(result)
def download_sd_blob(session, blob_hash, payment_rate_manager):
"""
Downloads a single blob from the network
@param session:
@param blob_hash:
@param payment_rate_manager:
@return: An object of type HashBlob
"""
downloader = StandaloneBlobDownloader(blob_hash, session.blob_manager,
session.peer_finder,
session.rate_limiter,
payment_rate_manager, session.wallet)
return downloader.download()
def download_sd_file_from_hash(self, sd_hash):
downloader = StandaloneBlobDownloader(sd_hash, self.session.blob_manager,
self.session.peer_finder, self.session.rate_limiter,
self.session.wallet)
d = downloader.download()
return d
def download_blob(blob_hash):
prm = PaymentRateManager(self.session.base_payment_rate_manager)
downloader = StandaloneBlobDownloader(blob_hash, self.session.blob_manager, peer_finder,
rate_limiter, prm, wallet)
d = downloader.download()
return d