223 lines
7.3 KiB
Python
223 lines
7.3 KiB
Python
import asyncio
|
|
import binascii
|
|
import os
|
|
from hashlib import sha1
|
|
from tempfile import mkdtemp
|
|
from typing import Optional
|
|
|
|
import libtorrent
|
|
|
|
|
|
NOTIFICATION_MASKS = [
|
|
"error",
|
|
"peer",
|
|
"port_mapping",
|
|
"storage",
|
|
"tracker",
|
|
"debug",
|
|
"status",
|
|
"progress",
|
|
"ip_block",
|
|
"dht",
|
|
"stats",
|
|
"session_log",
|
|
"torrent_log",
|
|
"peer_log",
|
|
"incoming_request",
|
|
"dht_log",
|
|
"dht_operation",
|
|
"port_mapping_log",
|
|
"picker_log",
|
|
"file_progress",
|
|
"piece_progress",
|
|
"upload",
|
|
"block_progress"
|
|
]
|
|
|
|
|
|
DEFAULT_FLAGS = ( # fixme: somehow the logic here is inverted?
|
|
libtorrent.add_torrent_params_flags_t.flag_auto_managed
|
|
| libtorrent.add_torrent_params_flags_t.flag_duplicate_is_error
|
|
| libtorrent.add_torrent_params_flags_t.flag_update_subscribe
|
|
)
|
|
|
|
|
|
def get_notification_type(notification) -> str:
|
|
for i, notification_type in enumerate(NOTIFICATION_MASKS):
|
|
if (1 << i) & notification:
|
|
return notification_type
|
|
raise ValueError("unrecognized notification type")
|
|
|
|
|
|
class TorrentHandle:
|
|
def __init__(self, loop, executor, handle):
|
|
self._loop = loop
|
|
self._executor = executor
|
|
self._handle: libtorrent.torrent_handle = handle
|
|
self.finished = asyncio.Event(loop=loop)
|
|
self.metadata_completed = asyncio.Event(loop=loop)
|
|
|
|
def _show_status(self):
|
|
# fixme: cleanup
|
|
status = self._handle.status()
|
|
if status.has_metadata:
|
|
self.metadata_completed.set()
|
|
# metadata: libtorrent.torrent_info = self._handle.get_torrent_info()
|
|
# print(metadata)
|
|
# print(metadata.files())
|
|
# print(type(self._handle))
|
|
if not status.is_seeding:
|
|
print('%.2f%% complete (down: %.1f kB/s up: %.1f kB/s peers: %d seeds: %d) %s - %s' % (
|
|
status.progress * 100, status.download_rate / 1000, status.upload_rate / 1000,
|
|
status.num_peers, status.num_seeds, status.state, status.save_path))
|
|
elif not self.finished.is_set():
|
|
self.finished.set()
|
|
print("finished!")
|
|
|
|
async def status_loop(self):
|
|
while True:
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._show_status
|
|
)
|
|
if self.finished.is_set():
|
|
break
|
|
await asyncio.sleep(0.1, loop=self._loop)
|
|
|
|
async def pause(self):
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._handle.pause
|
|
)
|
|
|
|
async def resume(self):
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._handle.resume
|
|
)
|
|
|
|
|
|
class TorrentSession:
|
|
def __init__(self, loop, executor):
|
|
self._loop = loop
|
|
self._executor = executor
|
|
self._session: Optional[libtorrent.session] = None
|
|
self._handles = {}
|
|
|
|
async def add_fake_torrent(self):
|
|
dir = mkdtemp()
|
|
info, btih = self._create_fake(dir)
|
|
flags = libtorrent.add_torrent_params_flags_t.flag_seed_mode
|
|
handle = self._session.add_torrent({
|
|
'ti': info, 'save_path': dir, 'flags': flags
|
|
})
|
|
self._handles[btih] = TorrentHandle(self._loop, self._executor, handle)
|
|
return btih
|
|
|
|
def _create_fake(self, dir):
|
|
# beware, that's just for testing
|
|
path = os.path.join(dir, 'tmp')
|
|
with open(path, 'wb') as myfile:
|
|
size = myfile.write(b'0' * 40 * 1024 * 1024)
|
|
fs = libtorrent.file_storage()
|
|
fs.add_file('tmp', size)
|
|
print(fs.file_path(0))
|
|
t = libtorrent.create_torrent(fs, 0, 4 * 1024 * 1024)
|
|
libtorrent.set_piece_hashes(t, dir)
|
|
info = libtorrent.torrent_info(t.generate())
|
|
btih = sha1(info.metadata()).hexdigest()
|
|
return info, btih
|
|
|
|
async def bind(self, interface: str = '0.0.0.0', port: int = 10889):
|
|
settings = {
|
|
'listen_interfaces': f"{interface}:{port}",
|
|
'enable_outgoing_utp': True,
|
|
'enable_incoming_utp': True,
|
|
'enable_outgoing_tcp': False,
|
|
'enable_incoming_tcp': False
|
|
}
|
|
self._session = await self._loop.run_in_executor(
|
|
self._executor, libtorrent.session, settings # pylint: disable=c-extension-no-member
|
|
)
|
|
self._loop.create_task(self.process_alerts())
|
|
|
|
def _pop_alerts(self):
|
|
for alert in self._session.pop_alerts():
|
|
print("alert: ", alert)
|
|
|
|
async def process_alerts(self):
|
|
while True:
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._pop_alerts
|
|
)
|
|
await asyncio.sleep(1, loop=self._loop)
|
|
|
|
async def pause(self):
|
|
await self._loop.run_in_executor(
|
|
self._executor, lambda: self._session.save_state() # pylint: disable=unnecessary-lambda
|
|
)
|
|
await self._loop.run_in_executor(
|
|
self._executor, lambda: self._session.pause() # pylint: disable=unnecessary-lambda
|
|
)
|
|
|
|
async def resume(self):
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._session.resume
|
|
)
|
|
|
|
def _add_torrent(self, btih: str, download_directory: Optional[str]):
|
|
params = {'info_hash': binascii.unhexlify(btih.encode())}
|
|
flags = DEFAULT_FLAGS
|
|
print(bin(flags))
|
|
flags ^= libtorrent.add_torrent_params_flags_t.flag_paused
|
|
# flags ^= libtorrent.add_torrent_params_flags_t.flag_auto_managed
|
|
# flags ^= libtorrent.add_torrent_params_flags_t.flag_stop_when_ready
|
|
print(bin(flags))
|
|
# params['flags'] = flags
|
|
if download_directory:
|
|
params['save_path'] = download_directory
|
|
handle = self._handles[btih] = TorrentHandle(self._loop, self._executor, self._session.add_torrent(params))
|
|
handle._handle.force_dht_announce()
|
|
|
|
async def add_torrent(self, btih, download_path):
|
|
await self._loop.run_in_executor(
|
|
self._executor, self._add_torrent, btih, download_path
|
|
)
|
|
self._loop.create_task(self._handles[btih].status_loop())
|
|
await self._handles[btih].metadata_completed.wait()
|
|
|
|
async def remove_torrent(self, btih, remove_files=False):
|
|
if btih in self._handles:
|
|
handle = self._handles[btih]
|
|
self._session.remove_torrent(handle, 1 if remove_files else 0)
|
|
self._handles.pop(btih)
|
|
|
|
|
|
def get_magnet_uri(btih):
|
|
return f"magnet:?xt=urn:btih:{btih}"
|
|
|
|
|
|
async def main():
|
|
if os.path.exists("~/Downloads/ubuntu-18.04.3-live-server-amd64.torrent"):
|
|
os.remove("~/Downloads/ubuntu-18.04.3-live-server-amd64.torrent")
|
|
if os.path.exists("~/Downloads/ubuntu-18.04.3-live-server-amd64.iso"):
|
|
os.remove("~/Downloads/ubuntu-18.04.3-live-server-amd64.iso")
|
|
|
|
btih = "dd8255ecdc7ca55fb0bbf81323d87062db1f6d1c"
|
|
|
|
executor = None
|
|
session = TorrentSession(asyncio.get_event_loop(), executor)
|
|
session2 = TorrentSession(asyncio.get_event_loop(), executor)
|
|
await session.bind('localhost', port=4040)
|
|
await session2.bind('localhost', port=4041)
|
|
btih = await session.add_fake_torrent()
|
|
session2._session.add_dht_node(('localhost', 4040))
|
|
await session2.add_torrent(btih, "/tmp/down")
|
|
print('added')
|
|
while True:
|
|
print("idling")
|
|
await asyncio.sleep(100)
|
|
await session.pause()
|
|
executor.shutdown()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
asyncio.run(main())
|