convert EncryptedFileDownloader to inlineCallbacks

This commit is contained in:
Jack Robison 2017-02-09 13:21:31 -05:00
parent bb9b221cf6
commit 8de6bd7c7a

View file

@ -48,57 +48,36 @@ class ManagedEncryptedFileDownloader(EncryptedFileSaver):
def saving_status(self):
return self._saving_status
@defer.inlineCallbacks
def restore(self):
d = self.stream_info_manager._get_sd_blob_hashes_for_stream(self.stream_hash)
def _save_stream_info(sd_hash):
if sd_hash:
self.sd_hash = sd_hash[0]
d = self.wallet.get_claim_metadata_for_sd_hash(self.sd_hash)
d.addCallback(lambda r: _save_claim(r[0], r[1], r[2]))
return d
else:
return None
def _save_claim_id(claim_id):
self.claim_id = claim_id
return defer.succeed(None)
def _notify_bad_claim(name, txid, nout):
err_msg = "Error loading name claim for lbry file: \
lbry://%s, tx %s output %i does not contain a valid claim, deleting it"
log.error(err_msg, name, txid, nout)
return self.lbry_file_manager.delete_lbry_file(self)
def _save_claim(name, txid, nout):
self.uri = name
self.txid = txid
self.nout = nout
d = self.wallet.get_claimid(name, txid, nout)
d.addCallbacks(_save_claim_id, lambda err: _notify_bad_claim(name, txid, nout))
return d
d.addCallback(_save_stream_info)
d.addCallback(lambda _: self._reupload())
d.addCallback(lambda _: self.lbry_file_manager.get_lbry_file_status(self))
def restore_status(status):
if status == ManagedEncryptedFileDownloader.STATUS_RUNNING:
return self.start()
elif status == ManagedEncryptedFileDownloader.STATUS_STOPPED:
return defer.succeed(False)
elif status == ManagedEncryptedFileDownloader.STATUS_FINISHED:
self.completed = True
return defer.succeed(True)
d.addCallback(restore_status)
return d
sd_hash = yield self.stream_info_manager._get_sd_blob_hashes_for_stream(self.stream_hash)
if sd_hash:
self.sd_hash = sd_hash[0]
else:
raise Exception("No sd hash for stream hash %s", self.stream_hash)
claim_metadata = yield self.wallet.get_claim_metadata_for_sd_hash(self.sd_hash)
if claim_metadata is None:
raise Exception("A claim doesn't exist for sd %s" % self.sd_hash)
self.uri, self.txid, self.nout = claim_metadata
self.claim_id = yield self.wallet.get_claimid(self.uri, self.txid, self.nout)
status = yield self.lbry_file_manager.get_lbry_file_status(self)
if status == ManagedEncryptedFileDownloader.STATUS_RUNNING:
yield self.start()
elif status == ManagedEncryptedFileDownloader.STATUS_STOPPED:
defer.returnValue(False)
elif status == ManagedEncryptedFileDownloader.STATUS_FINISHED:
self.completed = True
defer.returnValue(True)
else:
raise Exception("Unknown status for stream %s: %s", self.stream_hash, status)
@defer.inlineCallbacks
def _reupload(self):
if not conf.settings['reflector_reupload']:
return
reflector_server = random.choice(conf.settings['reflector_servers'])
return reupload.check_and_restore_availability(self, reflector_server)
defer.returnValue(None)
else:
reflector_server = random.choice(conf.settings['reflector_servers'])
yield reupload.check_and_restore_availability(self, reflector_server)
@defer.inlineCallbacks
def stop(self, err=None, change_status=True):
@ -107,34 +86,24 @@ class ManagedEncryptedFileDownloader(EncryptedFileSaver):
yield EncryptedFileDownloader.stop(self, err=err)
if change_status is True:
status = yield self._save_status()
defer.returnValue(status)
@defer.inlineCallbacks
def status(self):
def find_completed_blobhashes(blobs):
blobhashes = [b[0] for b in blobs if b[0] is not None]
blobs = yield self.stream_info_manager.get_blobs_for_stream(self.stream_hash)
blob_hashes = [b[0] for b in blobs if b[0] is not None]
completed_blobs = yield self.blob_manager.completed_blobs(blob_hashes)
num_blobs_completed = len(completed_blobs)
num_blobs_known = len(blob_hashes)
def get_num_completed(completed_blobs):
return len(completed_blobs), len(blobhashes)
inner_d = self.blob_manager.completed_blobs(blobhashes)
inner_d.addCallback(get_num_completed)
return inner_d
def make_full_status(progress):
num_completed = progress[0]
num_known = progress[1]
if self.completed is True:
s = "completed"
elif self.stopped is True:
s = "stopped"
else:
s = "running"
status = EncryptedFileStatusReport(self.file_name, num_completed, num_known, s)
return status
d = self.stream_info_manager.get_blobs_for_stream(self.stream_hash)
d.addCallback(find_completed_blobhashes)
d.addCallback(make_full_status)
return d
if self.completed:
status = "completed"
elif self.stopped:
status = "stopped"
else:
status = "running"
defer.returnValue(EncryptedFileStatusReport(self.file_name, num_blobs_completed,
num_blobs_known, status))
@defer.inlineCallbacks
def _start(self):
@ -166,8 +135,9 @@ class ManagedEncryptedFileDownloader(EncryptedFileSaver):
status = ManagedEncryptedFileDownloader.STATUS_STOPPED
else:
status = ManagedEncryptedFileDownloader.STATUS_RUNNING
yield self.lbry_file_manager.change_lbry_file_status(self, status)
status = yield self.lbry_file_manager.change_lbry_file_status(self, status)
self._saving_status = False
defer.returnValue(status)
def _get_progress_manager(self, download_manager):
return FullStreamProgressManager(self._finished_downloading,
@ -181,35 +151,23 @@ class ManagedEncryptedFileDownloaderFactory(object):
self.lbry_file_manager = lbry_file_manager
def can_download(self, sd_validator):
# TODO: add a sd_validator for non live streams, use it
return True
def make_downloader(self, metadata, options, payment_rate_manager,
download_directory=None, file_name=None):
@defer.inlineCallbacks
def make_downloader(self, metadata, options, payment_rate_manager, download_directory=None,
file_name=None):
data_rate = options[0]
upload_allowed = options[1]
def save_source_if_blob(stream_hash):
if metadata.metadata_source == StreamMetadata.FROM_BLOB:
# TODO: should never have to dig this deep into a another classes
# members. lbry_file_manager should have a
# save_sd_blob_hash_to_stream method
d = self.lbry_file_manager.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.lbry_file_manager.stream_info_manager, metadata.validator.raw_info)
d.addCallback(save_source_if_blob)
d.addCallback(lambda stream_hash: self.lbry_file_manager.add_lbry_file(
stream_hash,
payment_rate_manager,
data_rate,
upload_allowed,
download_directory=download_directory,
file_name=file_name))
return d
stream_hash = yield save_sd_info(self.lbry_file_manager.stream_info_manager,
metadata.validator.raw_info)
if metadata.metadata_source == StreamMetadata.FROM_BLOB:
yield self.lbry_file_manager.save_sd_blob_hash_to_stream(stream_hash,
metadata.source_blob_hash)
lbry_file = yield self.lbry_file_manager.add_lbry_file(stream_hash, payment_rate_manager,
data_rate, upload_allowed,
download_directory, file_name)
defer.returnValue(lbry_file)
@staticmethod
def get_description():