forked from LBRYCommunity/lbry-sdk
102 lines
4 KiB
Python
102 lines
4 KiB
Python
# pylint: skip-file
|
|
# pylint: skip-file
|
|
# This file is not maintained, but might be used in the future
|
|
#
|
|
import logging
|
|
import sys
|
|
|
|
from lbrynet.lbrylive.client.LiveStreamDownloader import LiveStreamDownloader
|
|
from lbrynet.core.BlobManager import TempBlobManager
|
|
from lbrynet.core.Session import Session
|
|
from lbrynet.core.client.StandaloneBlobDownloader import StandaloneBlobDownloader
|
|
from lbrynet.core.StreamDescriptor import BlobStreamDescriptorReader
|
|
from lbrynet.lbrylive.PaymentRateManager import BaseLiveStreamPaymentRateManager
|
|
from lbrynet.lbrylive.LiveStreamMetadataManager import DBLiveStreamMetadataManager
|
|
from lbrynet.lbrylive.StreamDescriptor import save_sd_info
|
|
from lbrynet.dht.node import Node
|
|
from twisted.internet import task
|
|
|
|
|
|
class StdoutDownloader():
|
|
"""This class downloads a live stream from the network and outputs it to standard out."""
|
|
def __init__(self, dht_node_port, known_dht_nodes,
|
|
stream_info_manager_class=DBLiveStreamMetadataManager, blob_manager_class=TempBlobManager):
|
|
"""
|
|
@param dht_node_port: the network port on which to listen for DHT node requests
|
|
|
|
@param known_dht_nodes: a list of (ip_address, dht_port) which will be used to join the DHT network
|
|
|
|
"""
|
|
|
|
self.session = Session(blob_manager_class=blob_manager_class,
|
|
stream_info_manager_class=stream_info_manager_class,
|
|
dht_node_class=Node, dht_node_port=dht_node_port, known_dht_nodes=known_dht_nodes,
|
|
use_upnp=False)
|
|
self.payment_rate_manager = BaseLiveStreamPaymentRateManager()
|
|
|
|
def start(self):
|
|
"""Initialize the session"""
|
|
d = self.session.setup()
|
|
return d
|
|
|
|
def read_sd_file(self, sd_blob):
|
|
reader = BlobStreamDescriptorReader(sd_blob)
|
|
return save_sd_info(self.stream_info_manager, reader, ignore_duplicate=True)
|
|
|
|
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 start_download(self, sd_hash):
|
|
"""Start downloading the stream from the network and outputting it to standard out"""
|
|
d = self.download_sd_file_from_hash(sd_hash)
|
|
d.addCallbacks(self.read_sd_file)
|
|
|
|
def start_stream(stream_hash):
|
|
consumer = LiveStreamDownloader(stream_hash, self.session.peer_finder,
|
|
self.session.rate_limiter, self.session.blob_manager,
|
|
self.stream_info_manager, self.payment_rate_manager,
|
|
self.session.wallet)
|
|
return consumer.start()
|
|
|
|
d.addCallback(start_stream)
|
|
return d
|
|
|
|
def shut_down(self):
|
|
"""End the session"""
|
|
d = self.session.shut_down()
|
|
return d
|
|
|
|
|
|
def launch_stdout_downloader():
|
|
|
|
from twisted.internet import reactor
|
|
|
|
logging.basicConfig(level=logging.WARNING, filename="dl.log")
|
|
if len(sys.argv) == 3:
|
|
downloader = StdoutDownloader(int(sys.argv[2]), [])
|
|
elif len(sys.argv) == 5:
|
|
downloader = StdoutDownloader(int(sys.argv[2]), [(sys.argv[3], int(sys.argv[4]))])
|
|
else:
|
|
print "Usage: lbrynet-stdout-downloader <sd_hash> <peer_port> <dht_node_port>" \
|
|
" [<dht_bootstrap_host> <dht_bootstrap port>]"
|
|
sys.exit(1)
|
|
|
|
def start_stdout_downloader():
|
|
return downloader.start_download(sys.argv[1])
|
|
|
|
def print_error(err):
|
|
logging.warning(err.getErrorMessage())
|
|
|
|
def shut_down():
|
|
reactor.stop()
|
|
|
|
d = task.deferLater(reactor, 0, downloader.start)
|
|
d.addCallback(lambda _: start_stdout_downloader())
|
|
d.addErrback(print_error)
|
|
d.addCallback(lambda _: shut_down())
|
|
reactor.addSystemEventTrigger('before', 'shutdown', downloader.shut_down)
|
|
reactor.run()
|