47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
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import binascii
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from zope.interface import implements
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from lbrynet.interfaces import IPeerFinder
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class DHTPeerFinder(object):
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"""This class finds peers which have announced to the DHT that they have certain blobs"""
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implements(IPeerFinder)
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def __init__(self, dht_node, peer_manager):
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self.dht_node = dht_node
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self.peer_manager = peer_manager
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self.peers = []
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self.next_manage_call = None
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def run_manage_loop(self):
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from twisted.internet import reactor
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self._manage_peers()
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self.next_manage_call = reactor.callLater(60, self.run_manage_loop)
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def stop(self):
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if self.next_manage_call is not None and self.next_manage_call.active():
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self.next_manage_call.cancel()
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self.next_manage_call = None
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def _manage_peers(self):
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pass
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def find_peers_for_blob(self, blob_hash):
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bin_hash = binascii.unhexlify(blob_hash)
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def filter_peers(peer_list):
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good_peers = []
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for host, port in peer_list:
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peer = self.peer_manager.get_peer(host, port)
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if peer.is_available() is True:
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good_peers.append(peer)
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return good_peers
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d = self.dht_node.getPeersForBlob(bin_hash)
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d.addCallback(filter_peers)
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return d
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def get_most_popular_hashes(self, num_to_return):
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return self.dht_node.get_most_popular_hashes(num_to_return)
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