def handle(self, conn, event):
if event.name in {'unchoke', 'choke'}:
conn.state['am_choking'] = (event.name == 'choke')
log.info('host is {}d by {}'.format(event.name, conn.name))
metadata_request(conn, piece=0)
conn.state['metadata'] = []
return
if event.name == 'extended':
if event.cmd == peer.UT_METADATA:
d, piece = bencode._decode(event.msg)
if d['msg_type'] == 0: # request
log.warning('unsupported')
if d['msg_type'] == 1: # data
log.info('got {} bytes of metadata from {}'.format(
len(piece), conn.name))
pieces = conn.state['metadata']
pieces.append(piece)
data = ''.join(pieces)
if self.info_hash == metainfo.hash(data):
return metadata_save(data)
else:
metadata_request(conn, piece=d['piece'] + 1)
if d['msg_type'] == 2: # reject
log.warning('no metadata')
return
def handle(self, conn, event):
if event.name in {"unchoke", "choke"}:
conn.state["am_choking"] = event.name == "choke"
log.info("host is {}d by {}".format(event.name, conn.name))
metadata_request(conn, piece=0)
conn.state["metadata"] = []
return
if event.name == "extended":
if event.cmd == peer.UT_METADATA:
d, piece = bencode._decode(event.msg)
if d["msg_type"] == 0: # request
log.warning("unsupported")
if d["msg_type"] == 1: # data
log.info("got {} bytes of metadata from {}".format(len(piece), conn.name))
pieces = conn.state["metadata"]
pieces.append(piece)
data = "".join(pieces)
if self.info_hash == metainfo.hash(data):
return metadata_save(data)
else:
metadata_request(conn, piece=d["piece"] + 1)
if d["msg_type"] == 2: # reject
log.warning("no metadata")
return
def test_tracker(arg):
logging.basicConfig(
format='%(asctime)-15s [%(levelname)s] %(message)s',
level=logging.DEBUG)
meta = metainfo.MetaInfo(arg)
peers = get_peers(meta, peer_id=metainfo.hash('test_tracker'), port=6889, timeout=10)
print peers
def metadata_save(data):
info_hash = metainfo.hash(data)
h = binascii.hexlify(info_hash)
log.info('saving metadata for {}'.format(h))
with file(h + '.meta', 'wb') as f:
f.write(data)
meta = metadata_load(info_hash)
assert meta is not None # verify correct data is written to file
return meta
def metadata_save(data):
info_hash = metainfo.hash(data)
h = binascii.hexlify(info_hash)
log.info("saving metadata for {}".format(h))
with file(h + ".meta", "wb") as f:
f.write(data)
meta = metadata_load(info_hash)
assert meta is not None # verify correct data is written to file
return meta
def metadata_load(info_hash):
h = binascii.hexlify(info_hash)
fname = h + ".meta"
if not os.path.exists(fname):
return None
with file(fname, "rb") as f:
data = f.read()
if metainfo.hash(data) == info_hash:
meta = metainfo.MetaInfo(bencode.decode(data))
log.info('MetaInfo "{}" ({} hashes) = {:.1f}MB'.format(meta.name, len(meta.hashes), meta.total / 1e6))
return meta
def metadata_load(info_hash):
h = binascii.hexlify(info_hash)
fname = h + '.meta'
if not os.path.exists(fname):
return None
with file(fname, 'rb') as f:
data = f.read()
if metainfo.hash(data) == info_hash:
meta = metainfo.MetaInfo(bencode.decode(data))
log.info('MetaInfo "{}" ({} hashes) = {:.1f}MB'.format(
meta.name, len(meta.hashes), meta.total / 1e6))
return meta
def validate(self, index_list=None):
if index_list is None:
index_list = indices(~self.bits)
for i in index_list:
data = self.read(i)
h = metainfo.hash(data)
success = (self.meta.hashes[i] == h)
self.bits[i] = success
if success:
log.debug('validated piece #{} ({} of {})'.format(i, self.bits.count(), len(self.bits)))
log.info('host has {} of {} pieces'.format(self.bits.count(), len(self.bits)))
return sum(self.bits[i] for i in index_list)
def validate(self, index_list=None):
if index_list is None:
index_list = indices(~self.bits)
for i in index_list:
data = self.read(i)
h = metainfo.hash(data)
success = (self.meta.hashes[i] == h)
self.bits[i] = success
if success:
log.debug('validated piece #{} ({} of {})'.format(
i, self.bits.count(), len(self.bits)))
log.info('host has {} of {} pieces'.format(self.bits.count(),
len(self.bits)))
return sum(self.bits[i] for i in index_list)
def main(args):
logging.basicConfig(
format='%(asctime)-15s [%(levelname)s] %(name)s: %(message)s',
level=logging.INFO)
host_id = metainfo.hash(args.host)
m = metainfo.parse_magnet(args.link)
meta = download.metadata_load(m['info_hash'])
if args.metadata:
if meta is None:
dl = download.Metadata(host_id, m['info_hash'])
meta = dl.run(m['trackers'])
if args.torrent and meta:
dl = download.Torrent(host_id, meta)
if not all(dl.data.bits):
dl.run(m['trackers'])
log.info('Download completed')
def main(args):
logging.basicConfig(
format='%(asctime)-15s [%(levelname)s] %(name)s: %(message)s',
level=logging.INFO)
host_id = metainfo.hash(args.host)
m = metainfo.parse_magnet(args.link)
meta = download.metadata_load(m['info_hash'])
if args.metadata:
if meta is None:
dl = download.Metadata(host_id, m['info_hash'])
meta = dl.run(m['trackers'])
if args.torrent and meta:
dl = download.Torrent(host_id, meta)
if not all(dl.data.bits):
dl.run(m['trackers'])
log.info('Download completed')