class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.dispersy = None
self.ipv8 = None
self.state_cb_count = 0
self.previous_active_downloads = []
self.download_states_lc = None
self.get_peer_list = []
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.session_lock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.torrent_store = None
self.metadata_store = None
self.rtorrent_handler = None
self.tftp_handler = None
self.api_manager = None
self.watch_folder = None
self.version_check_manager = None
self.resource_monitor = None
self.category = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.search_manager = None
self.channel_manager = None
self.video_server = None
self.mainline_dht = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
self.triblerchain_community = None
self.startup_deferred = Deferred()
self.credit_mining_manager = None
self.market_community = None
def register(self, session, session_lock):
assert isInIOThread()
if not self.registered:
self.registered = True
self.session = session
self.session_lock = session_lock
# On Mac, we bundle the root certificate for the SSL validation since Twisted is not using the root
# certificates provided by the system trust store.
if sys.platform == 'darwin':
os.environ['SSL_CERT_FILE'] = os.path.join(
get_lib_path(), 'root_certs_mac.pem')
if self.session.config.get_torrent_store_enabled():
from Tribler.Core.leveldbstore import LevelDbStore
self.torrent_store = LevelDbStore(
self.session.config.get_torrent_store_dir())
if not self.torrent_store.get_db():
raise RuntimeError(
"Torrent store (leveldb) is None which should not normally happen"
)
if self.session.config.get_metadata_enabled():
from Tribler.Core.leveldbstore import LevelDbStore
self.metadata_store = LevelDbStore(
self.session.config.get_metadata_store_dir())
if not self.metadata_store.get_db():
raise RuntimeError(
"Metadata store (leveldb) is None which should not normally happen"
)
# torrent collecting: RemoteTorrentHandler
if self.session.config.get_torrent_collecting_enabled():
from Tribler.Core.RemoteTorrentHandler import RemoteTorrentHandler
self.rtorrent_handler = RemoteTorrentHandler(self.session)
# TODO(emilon): move this to a megacache component or smth
if self.session.config.get_megacache_enabled():
from Tribler.Core.CacheDB.SqliteCacheDBHandler import (
PeerDBHandler, TorrentDBHandler, MyPreferenceDBHandler,
VoteCastDBHandler, ChannelCastDBHandler)
from Tribler.Core.Category.Category import Category
self._logger.debug('tlm: Reading Session state from %s',
self.session.config.get_state_dir())
self.category = Category()
# create DBHandlers
self.peer_db = PeerDBHandler(self.session)
self.torrent_db = TorrentDBHandler(self.session)
self.mypref_db = MyPreferenceDBHandler(self.session)
self.votecast_db = VoteCastDBHandler(self.session)
self.channelcast_db = ChannelCastDBHandler(self.session)
# initializes DBHandlers
self.peer_db.initialize()
self.torrent_db.initialize()
self.mypref_db.initialize()
self.votecast_db.initialize()
self.channelcast_db.initialize()
from Tribler.Core.Modules.tracker_manager import TrackerManager
self.tracker_manager = TrackerManager(self.session)
if self.session.config.get_video_server_enabled():
self.video_server = VideoServer(
self.session.config.get_video_server_port(), self.session)
self.video_server.start()
# IPv8
if self.session.config.get_ipv8_enabled():
from Tribler.pyipv8.ipv8.configuration import get_default_configuration
ipv8_config = get_default_configuration()
ipv8_config['port'] = self.session.config.get_dispersy_port()
ipv8_config['address'] = self.session.config.get_ipv8_address()
ipv8_config['overlays'] = []
ipv8_config['keys'] = [] # We load the keys ourselves
if self.session.config.get_ipv8_bootstrap_override():
import Tribler.pyipv8.ipv8.deprecated.community as community_file
community_file._DEFAULT_ADDRESSES = [
self.session.config.get_ipv8_bootstrap_override()
]
community_file._DNS_ADDRESSES = []
self.ipv8 = IPv8(ipv8_config)
self.session.config.set_anon_proxy_settings(
2, ("127.0.0.1",
self.session.config.
get_tunnel_community_socks5_listen_ports()))
# Dispersy
self.tftp_handler = None
if self.session.config.get_dispersy_enabled():
from Tribler.dispersy.dispersy import Dispersy
from Tribler.dispersy.endpoint import MIMEndpoint
from Tribler.dispersy.endpoint import IPv8toDispersyAdapter
# set communication endpoint
if self.session.config.get_ipv8_enabled():
dispersy_endpoint = IPv8toDispersyAdapter(
self.ipv8.endpoint)
else:
dispersy_endpoint = MIMEndpoint(
self.session.config.get_dispersy_port())
working_directory = unicode(
self.session.config.get_state_dir())
self.dispersy = Dispersy(dispersy_endpoint, working_directory)
self.dispersy.statistics.enable_debug_statistics(False)
# register TFTP service
from Tribler.Core.TFTP.handler import TftpHandler
self.tftp_handler = TftpHandler(self.session,
dispersy_endpoint,
"fffffffd".decode('hex'),
block_size=1024)
self.tftp_handler.initialize()
# Torrent search
if self.session.config.get_torrent_search_enabled(
) or self.session.config.get_channel_search_enabled():
self.search_manager = SearchManager(self.session)
self.search_manager.initialize()
if not self.initComplete:
self.init()
self.session.add_observer(self.on_tribler_started, NTFY_TRIBLER,
[NTFY_STARTED])
self.session.notifier.notify(NTFY_TRIBLER, NTFY_STARTED, None)
return self.startup_deferred
def on_tribler_started(self, subject, changetype, objectID, *args):
reactor.callFromThread(self.startup_deferred.callback, None)
@blocking_call_on_reactor_thread
def load_ipv8_overlays(self):
# Discovery Community
with open(self.session.config.get_permid_keypair_filename(),
'r') as key_file:
content = key_file.read()
content = content[31:-30].replace('\n', '').decode("BASE64")
peer = Peer(M2CryptoSK(keystring=content))
discovery_community = DiscoveryCommunity(peer, self.ipv8.endpoint,
self.ipv8.network)
discovery_community.resolve_dns_bootstrap_addresses()
self.ipv8.overlays.append(discovery_community)
self.ipv8.strategies.append((RandomChurn(discovery_community), -1))
if not self.session.config.get_dispersy_enabled():
self.ipv8.strategies.append((RandomWalk(discovery_community), 20))
# TriblerChain Community
if self.session.config.get_trustchain_enabled():
triblerchain_peer = Peer(self.session.trustchain_keypair)
from Tribler.community.triblerchain.community import TriblerChainCommunity
self.triblerchain_community = TriblerChainCommunity(
triblerchain_peer,
self.ipv8.endpoint,
self.ipv8.network,
tribler_session=self.session,
working_directory=self.session.config.get_state_dir())
self.ipv8.overlays.append(self.triblerchain_community)
self.ipv8.strategies.append(
(EdgeWalk(self.triblerchain_community), 20))
# Tunnel Community
if self.session.config.get_tunnel_community_enabled():
tunnel_peer = Peer(self.session.trustchain_keypair)
from Tribler.community.triblertunnel.community import TriblerTunnelCommunity
self.tunnel_community = TriblerTunnelCommunity(
tunnel_peer,
self.ipv8.endpoint,
self.ipv8.network,
tribler_session=self.session,
dht_provider=MainlineDHTProvider(
self.mainline_dht,
self.session.config.get_dispersy_port()),
triblerchain_community=self.triblerchain_community)
self.ipv8.overlays.append(self.tunnel_community)
self.ipv8.strategies.append(
(RandomWalk(self.tunnel_community), 20))
# Market Community
if self.session.config.get_market_community_enabled():
wallets = {}
try:
from Tribler.community.market.wallet.btc_wallet import BitcoinWallet, BitcoinTestnetWallet
wallet_type = BitcoinTestnetWallet if self.session.config.get_btc_testnet(
) else BitcoinWallet
btc_wallet = wallet_type(
os.path.join(self.session.config.get_state_dir(),
'wallet'))
wallets[btc_wallet.get_identifier()] = btc_wallet
except ImportError:
self._logger.error(
"Electrum wallet cannot be found, Bitcoin trading not available!"
)
mc_wallet = TrustchainWallet(self.triblerchain_community)
wallets[mc_wallet.get_identifier()] = mc_wallet
if self.session.config.get_dummy_wallets_enabled():
# For debugging purposes, we create dummy wallets
dummy_wallet1 = DummyWallet1()
wallets[dummy_wallet1.get_identifier()] = dummy_wallet1
dummy_wallet2 = DummyWallet2()
wallets[dummy_wallet2.get_identifier()] = dummy_wallet2
from Tribler.community.market.community import MarketCommunity
market_peer = Peer(self.session.tradechain_keypair)
self.market_community = MarketCommunity(
market_peer,
self.ipv8.endpoint,
self.ipv8.network,
tribler_session=self.session,
wallets=wallets,
working_directory=self.session.config.get_state_dir())
self.ipv8.overlays.append(self.market_community)
self.ipv8.strategies.append(
(RandomWalk(self.market_community), 20))
@blocking_call_on_reactor_thread
def load_dispersy_communities(self):
self._logger.info("tribler: Preparing Dispersy communities...")
now_time = timemod.time()
default_kwargs = {'tribler_session': self.session}
# Search Community
if self.session.config.get_torrent_search_enabled() and self.dispersy:
from Tribler.community.search.community import SearchCommunity
self.dispersy.define_auto_load(SearchCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# AllChannel Community
if self.session.config.get_channel_search_enabled() and self.dispersy:
from Tribler.community.allchannel.community import AllChannelCommunity
self.dispersy.define_auto_load(AllChannelCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# Channel Community
if self.session.config.get_channel_community_enabled(
) and self.dispersy:
from Tribler.community.channel.community import ChannelCommunity
self.dispersy.define_auto_load(ChannelCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# PreviewChannel Community
if self.session.config.get_preview_channel_community_enabled(
) and self.dispersy:
from Tribler.community.channel.preview import PreviewChannelCommunity
self.dispersy.define_auto_load(PreviewChannelCommunity,
self.session.dispersy_member,
kargs=default_kwargs)
self._logger.info("tribler: communities are ready in %.2f seconds",
timemod.time() - now_time)
def init(self):
if self.dispersy:
from Tribler.dispersy.community import HardKilledCommunity
self._logger.info("lmc: Starting Dispersy...")
self.session.readable_status = STATE_STARTING_DISPERSY
now = timemod.time()
success = self.dispersy.start(self.session.autoload_discovery)
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy started successfully in %.2f seconds [port: %d]",
diff, self.dispersy.wan_address[1])
else:
self._logger.info(
"lmc: Dispersy failed to start in %.2f seconds", diff)
self.upnp_ports.append((self.dispersy.wan_address[1], 'UDP'))
from Tribler.dispersy.crypto import M2CryptoSK
private_key = self.dispersy.crypto.key_to_bin(
M2CryptoSK(filename=self.session.config.
get_permid_keypair_filename()))
self.session.dispersy_member = blockingCallFromThread(
reactor, self.dispersy.get_member, private_key=private_key)
blockingCallFromThread(reactor,
self.dispersy.define_auto_load,
HardKilledCommunity,
self.session.dispersy_member,
load=True)
if self.session.config.get_megacache_enabled():
self.dispersy.database.attach_commit_callback(
self.session.sqlite_db.commit_now)
# notify dispersy finished loading
self.session.notifier.notify(NTFY_DISPERSY, NTFY_STARTED, None)
self.session.readable_status = STATE_LOADING_COMMUNITIES
# We should load the mainline DHT before loading the IPv8 overlays since the DHT is used for the tunnel overlay.
if self.session.config.get_mainline_dht_enabled():
self.session.readable_status = STATE_START_MAINLINE_DHT
from Tribler.Core.DecentralizedTracking import mainlineDHT
self.mainline_dht = mainlineDHT.init(
('127.0.0.1', self.session.config.get_mainline_dht_port()),
self.session.config.get_state_dir())
self.upnp_ports.append(
(self.session.config.get_mainline_dht_port(), 'UDP'))
if self.ipv8:
self.load_ipv8_overlays()
if self.dispersy:
self.load_dispersy_communities()
tunnel_community_ports = self.session.config.get_tunnel_community_socks5_listen_ports(
)
self.session.config.set_anon_proxy_settings(
2, ("127.0.0.1", tunnel_community_ports))
if self.session.config.get_channel_search_enabled(
) and self.session.config.get_dispersy_enabled():
self.session.readable_status = STATE_INITIALIZE_CHANNEL_MGR
from Tribler.Core.Modules.channel.channel_manager import ChannelManager
self.channel_manager = ChannelManager(self.session)
self.channel_manager.initialize()
if self.session.config.get_libtorrent_enabled():
self.session.readable_status = STATE_START_LIBTORRENT
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
for port, protocol in self.upnp_ports:
self.ltmgr.add_upnp_mapping(port, protocol)
# add task for tracker checking
if self.session.config.get_torrent_checking_enabled():
self.session.readable_status = STATE_START_TORRENT_CHECKER
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
if self.rtorrent_handler and self.session.config.get_dispersy_enabled(
):
self.session.readable_status = STATE_START_REMOTE_TORRENT_HANDLER
self.rtorrent_handler.initialize()
if self.api_manager:
self.session.readable_status = STATE_START_API_ENDPOINTS
self.api_manager.root_endpoint.start_endpoints()
if self.session.config.get_watch_folder_enabled():
self.session.readable_status = STATE_START_WATCH_FOLDER
self.watch_folder = WatchFolder(self.session)
self.watch_folder.start()
if self.session.config.get_credit_mining_enabled():
self.session.readable_status = STATE_START_CREDIT_MINING
from Tribler.Core.CreditMining.CreditMiningManager import CreditMiningManager
self.credit_mining_manager = CreditMiningManager(self.session)
if self.session.config.get_resource_monitor_enabled():
self.resource_monitor = ResourceMonitor(self.session)
self.resource_monitor.start()
self.version_check_manager = VersionCheckManager(self.session)
self.session.set_download_states_callback(self.sesscb_states_callback)
self.initComplete = True
def add(self,
tdef,
dscfg,
pstate=None,
setupDelay=0,
hidden=False,
share_mode=False,
checkpoint_disabled=False):
""" Called by any thread """
d = None
with self.session_lock:
if not isinstance(
tdef, TorrentDefNoMetainfo) and not tdef.is_finalized():
raise ValueError("TorrentDef not finalized")
infohash = tdef.get_infohash()
# Create the destination directory if it does not exist yet
try:
if not os.path.isdir(dscfg.get_dest_dir()):
os.makedirs(dscfg.get_dest_dir())
except OSError:
self._logger.error(
"Unable to create the download destination directory.")
if dscfg.get_time_added() == 0:
dscfg.set_time_added(int(timemod.time()))
# Check if running or saved on disk
if infohash in self.downloads:
self._logger.info(
"Torrent already exists in the downloads. Infohash:%s",
infohash.encode('hex'))
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'),
pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
setup_deferred = d.setup(dscfg,
pstate,
wrapperDelay=setupDelay,
share_mode=share_mode,
checkpoint_disabled=checkpoint_disabled)
setup_deferred.addCallback(self.on_download_handle_created)
if d and not hidden and self.session.config.get_megacache_enabled():
@forceDBThread
def write_my_pref():
torrent_id = self.torrent_db.getTorrentID(infohash)
data = {'destination_path': d.get_dest_dir()}
self.mypref_db.addMyPreference(torrent_id, data)
if isinstance(tdef, TorrentDefNoMetainfo):
self.torrent_db.addOrGetTorrentID(tdef.get_infohash())
self.torrent_db.updateTorrent(tdef.get_infohash(),
name=tdef.get_name_as_unicode())
write_my_pref()
elif self.rtorrent_handler:
self.rtorrent_handler.save_torrent(tdef, write_my_pref)
else:
self.torrent_db.addExternalTorrent(
tdef, extra_info={'status': 'good'})
write_my_pref()
return d
def on_download_handle_created(self, download):
"""
This method is called when the download handle has been created.
Immediately checkpoint the download and write the resume data.
"""
return download.checkpoint()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
out = None
with self.session_lock:
out = d.stop_remove(removestate=removestate,
removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
if not hidden:
self.remove_id(infohash)
if self.tunnel_community:
self.tunnel_community.on_download_removed(d)
return out or succeed(None)
def remove_id(self, infohash):
@forceDBThread
def do_db():
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id:
self.mypref_db.deletePreference(torrent_id)
if self.session.config.get_megacache_enabled():
do_db()
def get_downloads(self):
""" Called by any thread """
with self.session_lock:
return self.downloads.values() # copy, is mutable
def get_download(self, infohash):
""" Called by any thread """
with self.session_lock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.session_lock:
return infohash in self.downloads
@blocking_call_on_reactor_thread
@inlineCallbacks
def update_download_hops(self, download, new_hops):
"""
Update the amount of hops for a specified download. This can be done on runtime.
"""
infohash = binascii.hexlify(download.tdef.get_infohash())
self._logger.info("Updating the amount of hops of download %s",
infohash)
yield self.session.remove_download(download)
# copy the old download_config and change the hop count
dscfg = download.copy()
dscfg.set_hops(new_hops)
self.session.start_download_from_tdef(download.tdef, dscfg)
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(),
old_def.get_name(),
dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
if isinstance(old_def, TorrentDefNoMetainfo):
@forceDBThread
def update_trackers_db(infohash, new_trackers):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id is not None:
self.torrent_db.addTorrentTrackerMappingInBatch(
torrent_id, new_trackers)
self.session.notifier.notify(
NTFY_TORRENTS, NTFY_UPDATE, infohash)
if self.session.config.get_megacache_enabled():
update_trackers_db(infohash, new_trackers)
elif not isinstance(
old_def,
TorrentDefNoMetainfo) and self.rtorrent_handler:
# Update collected torrents
self.rtorrent_handler.save_torrent(new_def)
#
# State retrieval
#
def stop_download_states_callback(self):
"""
Stop any download states callback if present.
"""
if self.is_pending_task_active("download_states_lc"):
self.cancel_pending_task("download_states_lc")
def set_download_states_callback(self, user_callback, interval=1.0):
"""
Set the download state callback. Remove any old callback if it's present.
"""
self.stop_download_states_callback()
self._logger.debug(
"Starting the download state callback with interval %f", interval)
self.download_states_lc = self.register_task(
"download_states_lc",
LoopingCall(self._invoke_states_cb, user_callback))
self.download_states_lc.start(interval)
def _invoke_states_cb(self, callback):
"""
Invoke the download states callback with a list of the download states.
"""
dslist = []
for d in self.downloads.values():
d.set_moreinfo_stats(
True in self.get_peer_list
or d.get_def().get_infohash() in self.get_peer_list)
ds = d.network_get_state(None)
dslist.append(ds)
def on_cb_done(new_get_peer_list):
self.get_peer_list = new_get_peer_list
return deferToThread(callback, dslist).addCallback(on_cb_done)
def sesscb_states_callback(self, states_list):
"""
This method is periodically (every second) called with a list of the download states of the active downloads.
"""
self.state_cb_count += 1
# Check to see if a download has finished
new_active_downloads = []
do_checkpoint = False
seeding_download_list = []
for ds in states_list:
state = ds.get_status()
download = ds.get_download()
tdef = download.get_def()
safename = tdef.get_name_as_unicode()
if state == DLSTATUS_DOWNLOADING:
new_active_downloads.append(safename)
elif state == DLSTATUS_STOPPED_ON_ERROR:
self._logger.error("Error during download: %s",
repr(ds.get_error()))
if self.download_exists(tdef.get_infohash()):
self.get_download(tdef.get_infohash()).stop()
self.session.notifier.notify(NTFY_TORRENT, NTFY_ERROR,
tdef.get_infohash(),
repr(ds.get_error()))
elif state == DLSTATUS_SEEDING:
seeding_download_list.append({
u'infohash': tdef.get_infohash(),
u'download': download
})
if safename in self.previous_active_downloads:
self.session.notifier.notify(NTFY_TORRENT, NTFY_FINISHED,
tdef.get_infohash(), safename)
do_checkpoint = True
elif download.get_hops() == 0 and download.get_safe_seeding():
# Re-add the download with anonymity enabled
hops = self.session.config.get_default_number_hops()
self.update_download_hops(download, hops)
self.previous_active_downloads = new_active_downloads
if do_checkpoint:
self.session.checkpoint_downloads()
if self.state_cb_count % 4 == 0:
if self.tunnel_community:
self.tunnel_community.monitor_downloads(states_list)
if self.credit_mining_manager:
self.credit_mining_manager.monitor_downloads(states_list)
return []
#
# Persistence methods
#
def load_checkpoint(self):
""" Called by any thread """
def do_load_checkpoint():
with self.session_lock:
for i, filename in enumerate(
iglob(
os.path.join(
self.session.get_downloads_pstate_dir(),
'*.state'))):
self.resume_download(filename, setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint()
else:
self.register_task("load_checkpoint",
reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume session_lock already held """
try:
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(),
basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s",
infohash)
def resume_download(self, filename, setupDelay=0):
tdef = dscfg = pstate = None
try:
pstate = self.load_download_pstate(filename)
# SWIFTPROC
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'],
metainfo['name'],
metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('download_defaults', 'saveas') and \
isinstance(pstate.get('download_defaults', 'saveas'), tuple):
pstate.set('download_defaults', 'saveas',
pstate.get('download_defaults', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
except:
# pstate is invalid or non-existing
_, file = os.path.split(filename)
infohash = binascii.unhexlify(file[:-6])
torrent_data = self.torrent_store.get(infohash)
if torrent_data:
try:
tdef = TorrentDef.load_from_memory(torrent_data)
defaultDLConfig = DefaultDownloadStartupConfig.getInstance(
)
dscfg = defaultDLConfig.copy()
if self.mypref_db is not None:
dest_dir = self.mypref_db.getMyPrefStatsInfohash(
infohash)
if dest_dir and os.path.isdir(dest_dir):
dscfg.set_dest_dir(dest_dir)
except ValueError:
self._logger.warning("tlm: torrent data invalid")
if pstate is not None:
has_resume_data = pstate.get('state',
'engineresumedata') is not None
self._logger.debug(
"tlm: load_checkpoint: resumedata %s",
'len %s ' % len(pstate.get('state', 'engineresumedata'))
if has_resume_data else 'None')
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if not self.download_exists(tdef.get_infohash()):
self.add(tdef, dscfg, pstate, setupDelay=setupDelay)
else:
self._logger.info(
"tlm: not resuming checkpoint because download has already been added"
)
except Exception as e:
self._logger.exception(
"tlm: load check_point: exception while adding download %s",
tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s",
filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s",
filename, tdef, dscfg)
def checkpoint_downloads(self):
"""
Checkpoints all running downloads in Tribler.
Even if the list of Downloads changes in the mean time this is no problem.
For removals, dllist will still hold a pointer to the download, and additions are no problem
(just won't be included in list of states returned via callback).
"""
downloads = self.downloads.values()
deferred_list = []
self._logger.debug("tlm: checkpointing %s downloads", len(downloads))
for download in downloads:
deferred_list.append(download.checkpoint())
return DeferredList(deferred_list)
def shutdown_downloads(self):
"""
Shutdown all downloads in Tribler.
"""
for download in self.downloads.values():
download.stop()
def remove_pstate(self, infohash):
def do_remove():
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = binascii.hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug(
"remove pstate: removing dlcheckpoint entry %s",
filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning(
"remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
reactor.callFromThread(do_remove)
@inlineCallbacks
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
:returns a Deferred that will fire once all dependencies acknowledge they have shutdown.
"""
self._logger.info("tlm: early_shutdown")
self.shutdown_task_manager()
# Note: session_lock not held
self.shutdownstarttime = timemod.time()
if self.credit_mining_manager:
yield self.credit_mining_manager.shutdown()
self.credit_mining_manager = None
if self.torrent_checker:
yield self.torrent_checker.shutdown()
self.torrent_checker = None
if self.channel_manager:
yield self.channel_manager.shutdown()
self.channel_manager = None
if self.search_manager:
yield self.search_manager.shutdown()
self.search_manager = None
if self.rtorrent_handler:
yield self.rtorrent_handler.shutdown()
self.rtorrent_handler = None
if self.video_server:
yield self.video_server.shutdown_server()
self.video_server = None
if self.version_check_manager:
self.version_check_manager.stop()
self.version_check_manager = None
if self.resource_monitor:
self.resource_monitor.stop()
self.resource_monitor = None
self.tracker_manager = None
if self.tunnel_community and self.triblerchain_community:
# We unload these overlays manually since the triblerchain has to be unloaded after the tunnel overlay.
yield self.ipv8.unload_overlay(self.tunnel_community)
yield self.ipv8.unload_overlay(self.triblerchain_community)
if self.dispersy:
self._logger.info("lmc: Shutting down Dispersy...")
now = timemod.time()
try:
success = yield self.dispersy.stop()
except:
print_exc()
success = False
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy successfully shutdown in %.2f seconds",
diff)
else:
self._logger.info(
"lmc: Dispersy failed to shutdown in %.2f seconds", diff)
if self.ipv8:
yield self.ipv8.stop(stop_reactor=False)
if self.metadata_store is not None:
yield self.metadata_store.close()
self.metadata_store = None
if self.tftp_handler is not None:
yield self.tftp_handler.shutdown()
self.tftp_handler = None
if self.channelcast_db is not None:
yield self.channelcast_db.close()
self.channelcast_db = None
if self.votecast_db is not None:
yield self.votecast_db.close()
self.votecast_db = None
if self.mypref_db is not None:
yield self.mypref_db.close()
self.mypref_db = None
if self.torrent_db is not None:
yield self.torrent_db.close()
self.torrent_db = None
if self.peer_db is not None:
yield self.peer_db.close()
self.peer_db = None
if self.mainline_dht is not None:
from Tribler.Core.DecentralizedTracking import mainlineDHT
yield mainlineDHT.deinit(self.mainline_dht)
self.mainline_dht = None
if self.torrent_store is not None:
yield self.torrent_store.close()
self.torrent_store = None
if self.watch_folder is not None:
yield self.watch_folder.stop()
self.watch_folder = None
# We close the API manager as late as possible during shutdown.
if self.api_manager is not None:
yield self.api_manager.stop()
self.api_manager = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d",
len(ts))
for t in ts:
self._logger.info(
"tlm: Thread still running=%s, daemon=%s, instance=%s",
t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr is not None:
self.ltmgr.shutdown()
self.ltmgr = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
self.downloads[infohash].pstate_for_restart = pstate
self.register_task("save_pstate %f" % timemod.clock(),
self.downloads[infohash].save_resume_data())
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.dispersy = None
self.ipv8 = None
self.ipv8_start_time = 0
self.state_cb_count = 0
self.previous_active_downloads = []
self.download_states_lc = None
self.get_peer_list = []
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.session_lock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.torrent_store = None
self.metadata_store = None
self.rtorrent_handler = None
self.tftp_handler = None
self.api_manager = None
self.watch_folder = None
self.version_check_manager = None
self.resource_monitor = None
self.category = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.search_manager = None
self.channel_manager = None
self.video_server = None
self.mainline_dht = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
self.trustchain_community = None
self.wallets = {}
self.popularity_community = None
self.startup_deferred = Deferred()
self.credit_mining_manager = None
self.market_community = None
self.dht_community = None
self.payout_manager = None
self.mds = None
def register(self, session, session_lock):
assert isInIOThread()
if not self.registered:
self.registered = True
self.session = session
self.session_lock = session_lock
# On Mac, we bundle the root certificate for the SSL validation since Twisted is not using the root
# certificates provided by the system trust store.
if sys.platform == 'darwin':
os.environ['SSL_CERT_FILE'] = os.path.join(get_lib_path(), 'root_certs_mac.pem')
if self.session.config.get_torrent_store_enabled():
from Tribler.Core.leveldbstore import LevelDbStore
self.torrent_store = LevelDbStore(self.session.config.get_torrent_store_dir())
if not self.torrent_store.get_db():
raise RuntimeError("Torrent store (leveldb) is None which should not normally happen")
if self.session.config.get_metadata_enabled():
from Tribler.Core.leveldbstore import LevelDbStore
self.metadata_store = LevelDbStore(self.session.config.get_metadata_store_dir())
if not self.metadata_store.get_db():
raise RuntimeError("Metadata store (leveldb) is None which should not normally happen")
# torrent collecting: RemoteTorrentHandler
if self.session.config.get_torrent_collecting_enabled() and self.session.config.get_dispersy_enabled():
from Tribler.Core.RemoteTorrentHandler import RemoteTorrentHandler
self.rtorrent_handler = RemoteTorrentHandler(self.session)
# TODO(emilon): move this to a megacache component or smth
if self.session.config.get_megacache_enabled():
from Tribler.Core.CacheDB.SqliteCacheDBHandler import (PeerDBHandler, TorrentDBHandler,
MyPreferenceDBHandler, VoteCastDBHandler,
ChannelCastDBHandler)
from Tribler.Core.Category.Category import Category
self._logger.debug('tlm: Reading Session state from %s', self.session.config.get_state_dir())
self.category = Category()
# create DBHandlers
self.peer_db = PeerDBHandler(self.session)
self.torrent_db = TorrentDBHandler(self.session)
self.mypref_db = MyPreferenceDBHandler(self.session)
self.votecast_db = VoteCastDBHandler(self.session)
self.channelcast_db = ChannelCastDBHandler(self.session)
# initializes DBHandlers
self.peer_db.initialize()
self.torrent_db.initialize()
self.mypref_db.initialize()
self.votecast_db.initialize()
self.channelcast_db.initialize()
from Tribler.Core.Modules.tracker_manager import TrackerManager
self.tracker_manager = TrackerManager(self.session)
if self.session.config.get_video_server_enabled():
self.video_server = VideoServer(self.session.config.get_video_server_port(), self.session)
self.video_server.start()
# IPv8
if self.session.config.get_ipv8_enabled():
from Tribler.pyipv8.ipv8.configuration import get_default_configuration
ipv8_config = get_default_configuration()
ipv8_config['port'] = self.session.config.get_dispersy_port()
ipv8_config['address'] = self.session.config.get_ipv8_address()
ipv8_config['overlays'] = []
ipv8_config['keys'] = [] # We load the keys ourselves
if self.session.config.get_ipv8_bootstrap_override():
import Tribler.pyipv8.ipv8.deprecated.community as community_file
community_file._DEFAULT_ADDRESSES = [self.session.config.get_ipv8_bootstrap_override()]
community_file._DNS_ADDRESSES = []
self.ipv8 = IPv8(ipv8_config, enable_statistics=self.session.config.get_ipv8_statistics())
self.session.config.set_anon_proxy_settings(2, ("127.0.0.1",
self.session.
config.get_tunnel_community_socks5_listen_ports()))
# Dispersy
self.tftp_handler = None
if self.session.config.get_dispersy_enabled():
from Tribler.dispersy.dispersy import Dispersy
from Tribler.dispersy.endpoint import MIMEndpoint
from Tribler.dispersy.endpoint import IPv8toDispersyAdapter
# set communication endpoint
if self.session.config.get_ipv8_enabled():
dispersy_endpoint = IPv8toDispersyAdapter(self.ipv8.endpoint)
else:
dispersy_endpoint = MIMEndpoint(self.session.config.get_dispersy_port())
working_directory = unicode(self.session.config.get_state_dir())
self.dispersy = Dispersy(dispersy_endpoint, working_directory)
self.dispersy.statistics.enable_debug_statistics(False)
# register TFTP service
from Tribler.Core.TFTP.handler import TftpHandler
self.tftp_handler = TftpHandler(self.session, dispersy_endpoint, "fffffffd".decode('hex'),
block_size=1024)
self.tftp_handler.initialize()
# Torrent search
if self.session.config.get_torrent_search_enabled() or self.session.config.get_channel_search_enabled():
self.search_manager = SearchManager(self.session)
self.search_manager.initialize()
if not self.initComplete:
self.init()
self.session.add_observer(self.on_tribler_started, NTFY_TRIBLER, [NTFY_STARTED])
self.session.notifier.notify(NTFY_TRIBLER, NTFY_STARTED, None)
return self.startup_deferred
def on_tribler_started(self, subject, changetype, objectID, *args):
reactor.callFromThread(self.startup_deferred.callback, None)
def load_ipv8_overlays(self):
# Discovery Community
with open(self.session.config.get_permid_keypair_filename(), 'r') as key_file:
content = key_file.read()
content = content[31:-30].replace('\n', '').decode("BASE64")
peer = Peer(M2CryptoSK(keystring=content))
discovery_community = DiscoveryCommunity(peer, self.ipv8.endpoint, self.ipv8.network)
discovery_community.resolve_dns_bootstrap_addresses()
self.ipv8.overlays.append(discovery_community)
self.ipv8.strategies.append((RandomChurn(discovery_community), -1))
if not self.session.config.get_dispersy_enabled():
self.ipv8.strategies.append((RandomWalk(discovery_community), 20))
if self.session.config.get_testnet():
peer = Peer(self.session.trustchain_testnet_keypair)
else:
peer = Peer(self.session.trustchain_keypair)
# TrustChain Community
if self.session.config.get_trustchain_enabled():
from Tribler.pyipv8.ipv8.attestation.trustchain.community import TrustChainCommunity, \
TrustChainTestnetCommunity
community_cls = TrustChainTestnetCommunity if self.session.config.get_testnet() else TrustChainCommunity
self.trustchain_community = community_cls(peer, self.ipv8.endpoint,
self.ipv8.network,
working_directory=self.session.config.get_state_dir())
self.ipv8.overlays.append(self.trustchain_community)
self.ipv8.strategies.append((EdgeWalk(self.trustchain_community), 20))
tc_wallet = TrustchainWallet(self.trustchain_community)
self.wallets[tc_wallet.get_identifier()] = tc_wallet
# DHT Community
if self.session.config.get_dht_enabled():
from Tribler.pyipv8.ipv8.dht.discovery import DHTDiscoveryCommunity
self.dht_community = DHTDiscoveryCommunity(peer, self.ipv8.endpoint, self.ipv8.network)
self.ipv8.overlays.append(self.dht_community)
self.ipv8.strategies.append((RandomWalk(self.dht_community), 20))
# Tunnel Community
if self.session.config.get_tunnel_community_enabled():
from Tribler.community.triblertunnel.community import TriblerTunnelCommunity, TriblerTunnelTestnetCommunity
community_cls = TriblerTunnelTestnetCommunity if self.session.config.get_testnet() else \
TriblerTunnelCommunity
if self.mainline_dht:
dht_provider = MainlineDHTProvider(self.mainline_dht, self.session.config.get_dispersy_port())
else:
dht_provider = DHTCommunityProvider(self.dht_community, self.session.config.get_dispersy_port())
self.tunnel_community = community_cls(peer, self.ipv8.endpoint, self.ipv8.network,
tribler_session=self.session,
dht_provider=dht_provider,
bandwidth_wallet=self.wallets["MB"])
self.ipv8.overlays.append(self.tunnel_community)
self.ipv8.strategies.append((RandomWalk(self.tunnel_community), 20))
# Market Community
if self.session.config.get_market_community_enabled() and self.session.config.get_dht_enabled():
from Tribler.community.market.community import MarketCommunity, MarketTestnetCommunity
community_cls = MarketTestnetCommunity if self.session.config.get_testnet() else MarketCommunity
self.market_community = community_cls(peer, self.ipv8.endpoint, self.ipv8.network,
tribler_session=self.session,
trustchain=self.trustchain_community,
dht=self.dht_community,
wallets=self.wallets,
working_directory=self.session.config.get_state_dir())
self.ipv8.overlays.append(self.market_community)
self.ipv8.strategies.append((RandomWalk(self.market_community), 20))
# Popular Community
if self.session.config.get_popularity_community_enabled():
from Tribler.community.popularity.community import PopularityCommunity
self.popularity_community = PopularityCommunity(peer, self.ipv8.endpoint, self.ipv8.network,
torrent_db=self.session.lm.torrent_db, session=self.session)
self.ipv8.overlays.append(self.popularity_community)
self.ipv8.strategies.append((RandomWalk(self.popularity_community), 20))
self.popularity_community.start()
def enable_ipv8_statistics(self):
if self.session.config.get_ipv8_statistics():
for overlay in self.ipv8.overlays:
self.ipv8.endpoint.enable_community_statistics(overlay.get_prefix(), True)
def load_dispersy_communities(self):
self._logger.info("tribler: Preparing Dispersy communities...")
now_time = timemod.time()
default_kwargs = {'tribler_session': self.session}
# Search Community
if self.session.config.get_torrent_search_enabled() and self.dispersy:
from Tribler.community.search.community import SearchCommunity
self.dispersy.define_auto_load(SearchCommunity, self.session.dispersy_member, load=True,
kargs=default_kwargs)
# AllChannel Community
if self.session.config.get_channel_search_enabled() and self.dispersy:
from Tribler.community.allchannel.community import AllChannelCommunity
self.dispersy.define_auto_load(AllChannelCommunity, self.session.dispersy_member, load=True,
kargs=default_kwargs)
# Channel Community
if self.session.config.get_channel_community_enabled() and self.dispersy:
from Tribler.community.channel.community import ChannelCommunity
self.dispersy.define_auto_load(ChannelCommunity,
self.session.dispersy_member, load=True, kargs=default_kwargs)
# PreviewChannel Community
if self.session.config.get_preview_channel_community_enabled() and self.dispersy:
from Tribler.community.channel.preview import PreviewChannelCommunity
self.dispersy.define_auto_load(PreviewChannelCommunity,
self.session.dispersy_member, kargs=default_kwargs)
self._logger.info("tribler: communities are ready in %.2f seconds", timemod.time() - now_time)
def init(self):
if self.dispersy:
from Tribler.dispersy.community import HardKilledCommunity
self._logger.info("lmc: Starting Dispersy...")
self.session.readable_status = STATE_STARTING_DISPERSY
now = timemod.time()
success = self.dispersy.start(self.session.autoload_discovery)
diff = timemod.time() - now
if success:
self._logger.info("lmc: Dispersy started successfully in %.2f seconds [port: %d]",
diff, self.dispersy.wan_address[1])
else:
self._logger.info("lmc: Dispersy failed to start in %.2f seconds", diff)
self.upnp_ports.append((self.dispersy.wan_address[1], 'UDP'))
from Tribler.dispersy.crypto import M2CryptoSK
private_key = self.dispersy.crypto.key_to_bin(
M2CryptoSK(filename=self.session.config.get_permid_keypair_filename()))
self.session.dispersy_member = blockingCallFromThread(reactor, self.dispersy.get_member,
private_key=private_key)
blockingCallFromThread(reactor, self.dispersy.define_auto_load, HardKilledCommunity,
self.session.dispersy_member, load=True)
if self.session.config.get_megacache_enabled():
self.dispersy.database.attach_commit_callback(self.session.sqlite_db.commit_now)
# notify dispersy finished loading
self.session.notifier.notify(NTFY_DISPERSY, NTFY_STARTED, None)
self.session.readable_status = STATE_LOADING_COMMUNITIES
# We should load the mainline DHT before loading the IPv8 overlays since the DHT is used for the tunnel overlay.
if self.session.config.get_mainline_dht_enabled():
self.session.readable_status = STATE_START_MAINLINE_DHT
from Tribler.Core.DecentralizedTracking import mainlineDHT
self.mainline_dht = mainlineDHT.init(('127.0.0.1', self.session.config.get_mainline_dht_port()),
self.session.config.get_state_dir())
self.upnp_ports.append((self.session.config.get_mainline_dht_port(), 'UDP'))
# Wallets
if self.session.config.get_bitcoinlib_enabled():
try:
from Tribler.Core.Modules.wallet.btc_wallet import BitcoinWallet, BitcoinTestnetWallet
wallet_path = os.path.join(self.session.config.get_state_dir(), 'wallet')
btc_wallet = BitcoinWallet(wallet_path)
btc_testnet_wallet = BitcoinTestnetWallet(wallet_path)
self.wallets[btc_wallet.get_identifier()] = btc_wallet
self.wallets[btc_testnet_wallet.get_identifier()] = btc_testnet_wallet
except ImportError:
self._logger.error("bitcoinlib library cannot be found, Bitcoin wallet not available!")
if self.session.config.get_dummy_wallets_enabled():
# For debugging purposes, we create dummy wallets
dummy_wallet1 = DummyWallet1()
self.wallets[dummy_wallet1.get_identifier()] = dummy_wallet1
dummy_wallet2 = DummyWallet2()
self.wallets[dummy_wallet2.get_identifier()] = dummy_wallet2
if self.ipv8:
self.ipv8_start_time = time.time()
self.load_ipv8_overlays()
self.enable_ipv8_statistics()
if self.dispersy:
self.load_dispersy_communities()
tunnel_community_ports = self.session.config.get_tunnel_community_socks5_listen_ports()
self.session.config.set_anon_proxy_settings(2, ("127.0.0.1", tunnel_community_ports))
if self.session.config.get_channel_search_enabled() and self.session.config.get_dispersy_enabled():
self.session.readable_status = STATE_INITIALIZE_CHANNEL_MGR
from Tribler.Core.Modules.channel.channel_manager import ChannelManager
self.channel_manager = ChannelManager(self.session)
self.channel_manager.initialize()
if self.session.config.get_libtorrent_enabled():
self.session.readable_status = STATE_START_LIBTORRENT
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
for port, protocol in self.upnp_ports:
self.ltmgr.add_upnp_mapping(port, protocol)
# add task for tracker checking
if self.session.config.get_torrent_checking_enabled():
self.session.readable_status = STATE_START_TORRENT_CHECKER
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
if self.rtorrent_handler and self.session.config.get_dispersy_enabled():
self.session.readable_status = STATE_START_REMOTE_TORRENT_HANDLER
self.rtorrent_handler.initialize()
if self.api_manager:
self.session.readable_status = STATE_START_API_ENDPOINTS
self.api_manager.root_endpoint.start_endpoints()
if self.session.config.get_watch_folder_enabled():
self.session.readable_status = STATE_START_WATCH_FOLDER
self.watch_folder = WatchFolder(self.session)
self.watch_folder.start()
if self.session.config.get_credit_mining_enabled():
self.session.readable_status = STATE_START_CREDIT_MINING
from Tribler.Core.CreditMining.CreditMiningManager import CreditMiningManager
self.credit_mining_manager = CreditMiningManager(self.session)
if self.session.config.get_resource_monitor_enabled():
self.resource_monitor = ResourceMonitor(self.session)
self.resource_monitor.start()
if self.session.config.get_version_checker_enabled():
self.version_check_manager = VersionCheckManager(self.session)
self.version_check_manager.start()
if self.session.config.get_chant_enabled():
channels_dir = os.path.join(self.session.config.get_chant_channels_dir())
database_path = os.path.join(self.session.config.get_state_dir(), 'sqlite', 'metadata.db')
self.mds = MetadataStore(database_path, channels_dir, self.session.trustchain_keypair)
self.session.set_download_states_callback(self.sesscb_states_callback)
if self.session.config.get_ipv8_enabled() and self.session.config.get_trustchain_enabled():
self.payout_manager = PayoutManager(self.trustchain_community, self.dht_community)
self.initComplete = True
def on_channel_download_finished(self, download, channel_id, finished_deferred=None):
if download.get_channel_download():
channel_dirname = os.path.join(self.session.lm.mds.channels_dir, download.get_def().get_name())
self.mds.process_channel_dir(channel_dirname, channel_id)
if finished_deferred:
finished_deferred.callback(download)
@db_session
def update_channel(self, payload):
"""
We received some channel metadata, possibly over the network.
Validate the signature, update the local metadata store and start downloading this channel if needed.
:param payload: The channel metadata, in serialized form.
"""
if not payload.has_valid_signature():
raise InvalidSignatureException("The signature of the channel metadata is invalid.")
channel = self.mds.ChannelMetadata.get_channel_with_id(payload.public_key)
if channel:
if float2time(payload.timestamp) > channel.timestamp:
# Update the channel that is already there.
self._logger.info("Updating channel metadata %s ts %s->%s", str(channel.public_key).encode("hex"),
str(channel.timestamp), str(float2time(payload.timestamp)))
channel.set(**ChannelMetadataPayload.to_dict(payload))
else:
# Add new channel object to DB
channel = self.mds.ChannelMetadata.from_payload(payload)
channel.subscribed = True
if channel.version > channel.local_version:
self._logger.info("Downloading new channel version %s ver %i->%i", str(channel.public_key).encode("hex"),
channel.local_version, channel.version)
#TODO: handle the case where the local version is the same as the new one and is not seeded
return self.download_channel(channel)
def download_channel(self, channel):
"""
Download a channel with a given infohash and title.
:param channel: The channel metadata ORM object.
"""
finished_deferred = Deferred()
dcfg = DownloadStartupConfig()
dcfg.set_dest_dir(self.mds.channels_dir)
dcfg.set_channel_download(True)
tdef = TorrentDefNoMetainfo(infohash=str(channel.infohash), name=channel.title)
download = self.session.start_download_from_tdef(tdef, dcfg)
channel_id = channel.public_key
download.finished_callback = lambda dl: self.on_channel_download_finished(dl, channel_id, finished_deferred)
return download, finished_deferred
def updated_my_channel(self, new_torrent_path):
"""
Notify the core that we updated our channel.
:param new_torrent_path: path to the new torrent file
"""
# Start the new download
tdef = TorrentDef.load(new_torrent_path)
dcfg = DownloadStartupConfig()
dcfg.set_dest_dir(self.mds.channels_dir)
dcfg.set_channel_download(True)
self.add(tdef, dcfg)
def add(self, tdef, dscfg, pstate=None, setupDelay=0, hidden=False,
share_mode=False, checkpoint_disabled=False):
""" Called by any thread """
d = None
with self.session_lock:
if not isinstance(tdef, TorrentDefNoMetainfo) and not tdef.is_finalized():
raise ValueError("TorrentDef not finalized")
infohash = tdef.get_infohash()
# Create the destination directory if it does not exist yet
try:
if not os.path.isdir(dscfg.get_dest_dir()):
os.makedirs(dscfg.get_dest_dir())
except OSError:
self._logger.error("Unable to create the download destination directory.")
if dscfg.get_time_added() == 0:
dscfg.set_time_added(int(timemod.time()))
# Check if running or saved on disk
if infohash in self.downloads:
self._logger.info("Torrent already exists in the downloads. Infohash:%s", infohash.encode('hex'))
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'), pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
setup_deferred = d.setup(dscfg, pstate, wrapperDelay=setupDelay,
share_mode=share_mode, checkpoint_disabled=checkpoint_disabled)
setup_deferred.addCallback(self.on_download_handle_created)
if d and not hidden and self.session.config.get_megacache_enabled():
@forceDBThread
def write_my_pref():
torrent_id = self.torrent_db.getTorrentID(infohash)
data = {'destination_path': d.get_dest_dir()}
self.mypref_db.addMyPreference(torrent_id, data)
if isinstance(tdef, TorrentDefNoMetainfo):
self.torrent_db.addOrGetTorrentID(tdef.get_infohash())
self.torrent_db.updateTorrent(tdef.get_infohash(), name=tdef.get_name_as_unicode())
self.torrent_db._db.commit_now()
write_my_pref()
elif self.rtorrent_handler:
self.rtorrent_handler.save_torrent(tdef, write_my_pref)
else:
self.torrent_db.addExternalTorrent(tdef, extra_info={'status': 'good'})
write_my_pref()
return d
def on_download_handle_created(self, download):
"""
This method is called when the download handle has been created.
Immediately checkpoint the download and write the resume data.
"""
return download.checkpoint()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
out = None
with self.session_lock:
out = d.stop_remove(removestate=removestate, removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
if not hidden:
self.remove_id(infohash)
if self.tunnel_community:
self.tunnel_community.on_download_removed(d)
return out or succeed(None)
def remove_id(self, infohash):
@forceDBThread
def do_db():
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id:
self.mypref_db.deletePreference(torrent_id)
if self.session.config.get_megacache_enabled():
do_db()
def get_downloads(self):
""" Called by any thread """
with self.session_lock:
return self.downloads.values() # copy, is mutable
def get_download(self, infohash):
""" Called by any thread """
with self.session_lock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.session_lock:
return infohash in self.downloads
@inlineCallbacks
def update_download_hops(self, download, new_hops):
"""
Update the amount of hops for a specified download. This can be done on runtime.
"""
infohash = binascii.hexlify(download.tdef.get_infohash())
self._logger.info("Updating the amount of hops of download %s", infohash)
pstate = download.get_persistent_download_config()
pstate.set('state', 'engineresumedata', (yield download.save_resume_data()))
yield self.session.remove_download(download)
# copy the old download_config and change the hop count
dscfg = download.copy()
dscfg.set_hops(new_hops)
# If the user wants to change the hop count to 0, don't automatically bump this up to 1 anymore
dscfg.set_safe_seeding(False)
self.session.start_download_from_tdef(download.tdef, dscfg, pstate=pstate)
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(), old_def.get_name(), dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
if isinstance(old_def, TorrentDefNoMetainfo):
@forceDBThread
def update_trackers_db(infohash, new_trackers):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id is not None:
self.torrent_db.addTorrentTrackerMappingInBatch(torrent_id, new_trackers)
self.session.notifier.notify(NTFY_TORRENTS, NTFY_UPDATE, infohash)
if self.session.config.get_megacache_enabled():
update_trackers_db(infohash, new_trackers)
elif not isinstance(old_def, TorrentDefNoMetainfo) and self.rtorrent_handler:
# Update collected torrents
self.rtorrent_handler.save_torrent(new_def)
#
# State retrieval
#
def stop_download_states_callback(self):
"""
Stop any download states callback if present.
"""
if self.is_pending_task_active("download_states_lc"):
self.cancel_pending_task("download_states_lc")
def set_download_states_callback(self, user_callback, interval=1.0):
"""
Set the download state callback. Remove any old callback if it's present.
"""
self.stop_download_states_callback()
self._logger.debug("Starting the download state callback with interval %f", interval)
self.download_states_lc = self.register_task("download_states_lc",
LoopingCall(self._invoke_states_cb, user_callback))
self.download_states_lc.start(interval)
def _invoke_states_cb(self, callback):
"""
Invoke the download states callback with a list of the download states.
"""
dslist = []
for d in self.downloads.values():
d.set_moreinfo_stats(True in self.get_peer_list or d.get_def().get_infohash() in
self.get_peer_list)
ds = d.network_get_state(None)
dslist.append(ds)
def on_cb_done(new_get_peer_list):
self.get_peer_list = new_get_peer_list
return deferToThread(callback, dslist).addCallback(on_cb_done)
def sesscb_states_callback(self, states_list):
"""
This method is periodically (every second) called with a list of the download states of the active downloads.
"""
self.state_cb_count += 1
# Check to see if a download has finished
new_active_downloads = []
do_checkpoint = False
seeding_download_list = []
for ds in states_list:
state = ds.get_status()
download = ds.get_download()
tdef = download.get_def()
safename = tdef.get_name_as_unicode()
infohash = tdef.get_infohash()
if state == DLSTATUS_DOWNLOADING:
new_active_downloads.append(infohash)
elif state == DLSTATUS_STOPPED_ON_ERROR:
self._logger.error("Error during download: %s", repr(ds.get_error()))
if self.download_exists(infohash):
self.get_download(infohash).stop()
self.session.notifier.notify(NTFY_TORRENT, NTFY_ERROR, infohash, repr(ds.get_error()))
elif state == DLSTATUS_SEEDING:
seeding_download_list.append({u'infohash': infohash,
u'download': download})
if infohash in self.previous_active_downloads:
self.session.notifier.notify(NTFY_TORRENT, NTFY_FINISHED, infohash, safename)
do_checkpoint = True
elif download.get_hops() == 0 and download.get_safe_seeding():
# Re-add the download with anonymity enabled
hops = self.session.config.get_default_number_hops()
self.update_download_hops(download, hops)
# Check the peers of this download every five seconds and add them to the payout manager when
# this peer runs a Tribler instance
if self.state_cb_count % 5 == 0 and download.get_hops() == 0 and self.payout_manager:
for peer in download.get_peerlist():
if peer["extended_version"].startswith('Tribler'):
self.payout_manager.update_peer(peer["id"].decode('hex'), infohash, peer["dtotal"])
self.previous_active_downloads = new_active_downloads
if do_checkpoint:
self.session.checkpoint_downloads()
if self.state_cb_count % 4 == 0:
if self.tunnel_community:
self.tunnel_community.monitor_downloads(states_list)
if self.credit_mining_manager:
self.credit_mining_manager.monitor_downloads(states_list)
return []
#
# Persistence methods
#
def load_checkpoint(self):
""" Called by any thread """
def do_load_checkpoint():
with self.session_lock:
for i, filename in enumerate(iglob(os.path.join(self.session.get_downloads_pstate_dir(), '*.state'))):
self.resume_download(filename, setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint()
else:
self.register_task("load_checkpoint", reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume session_lock already held """
try:
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(), basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s", infohash)
def resume_download(self, filename, setupDelay=0):
tdef = dscfg = pstate = None
try:
pstate = self.load_download_pstate(filename)
# SWIFTPROC
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'], metainfo['name'], metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('download_defaults', 'saveas') and \
isinstance(pstate.get('download_defaults', 'saveas'), tuple):
pstate.set('download_defaults', 'saveas', pstate.get('download_defaults', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
except:
# pstate is invalid or non-existing
_, file = os.path.split(filename)
infohash = binascii.unhexlify(file[:-6])
torrent_data = self.torrent_store.get(infohash)
if torrent_data:
try:
tdef = TorrentDef.load_from_memory(torrent_data)
defaultDLConfig = DefaultDownloadStartupConfig.getInstance()
dscfg = defaultDLConfig.copy()
if self.mypref_db is not None:
dest_dir = self.mypref_db.getMyPrefStatsInfohash(infohash)
if dest_dir and os.path.isdir(dest_dir):
dscfg.set_dest_dir(dest_dir)
except ValueError:
self._logger.warning("tlm: torrent data invalid")
if pstate is not None:
has_resume_data = pstate.get('state', 'engineresumedata') is not None
self._logger.debug("tlm: load_checkpoint: resumedata %s",
'len %s ' % len(pstate.get('state', 'engineresumedata')) if has_resume_data else 'None')
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if self.download_exists(tdef.get_infohash()):
self._logger.info("tlm: not resuming checkpoint because download has already been added")
elif dscfg.get_credit_mining() and not self.session.config.get_credit_mining_enabled():
self._logger.info("tlm: not resuming checkpoint since token mining is disabled")
else:
self.add(tdef, dscfg, pstate, setupDelay=setupDelay)
except Exception as e:
self._logger.exception("tlm: load check_point: exception while adding download %s", tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s", filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s", filename, tdef, dscfg)
def checkpoint_downloads(self):
"""
Checkpoints all running downloads in Tribler.
Even if the list of Downloads changes in the mean time this is no problem.
For removals, dllist will still hold a pointer to the download, and additions are no problem
(just won't be included in list of states returned via callback).
"""
downloads = self.downloads.values()
deferred_list = []
self._logger.debug("tlm: checkpointing %s downloads", len(downloads))
for download in downloads:
deferred_list.append(download.checkpoint())
return DeferredList(deferred_list)
def shutdown_downloads(self):
"""
Shutdown all downloads in Tribler.
"""
for download in self.downloads.values():
download.stop()
def remove_pstate(self, infohash):
def do_remove():
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = binascii.hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug("remove pstate: removing dlcheckpoint entry %s", filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning("remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
reactor.callFromThread(do_remove)
@inlineCallbacks
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
:returns a Deferred that will fire once all dependencies acknowledge they have shutdown.
"""
self._logger.info("tlm: early_shutdown")
self.shutdown_task_manager()
# Note: session_lock not held
self.shutdownstarttime = timemod.time()
if self.credit_mining_manager:
yield self.credit_mining_manager.shutdown()
self.credit_mining_manager = None
if self.torrent_checker:
yield self.torrent_checker.shutdown()
self.torrent_checker = None
if self.channel_manager:
yield self.channel_manager.shutdown()
self.channel_manager = None
if self.search_manager:
yield self.search_manager.shutdown()
self.search_manager = None
if self.rtorrent_handler:
yield self.rtorrent_handler.shutdown()
self.rtorrent_handler = None
if self.video_server:
yield self.video_server.shutdown_server()
self.video_server = None
if self.version_check_manager:
self.version_check_manager.stop()
self.version_check_manager = None
if self.resource_monitor:
self.resource_monitor.stop()
self.resource_monitor = None
self.tracker_manager = None
if self.tftp_handler is not None:
yield self.tftp_handler.shutdown()
self.tftp_handler = None
if self.tunnel_community and self.trustchain_community:
# We unload these overlays manually since the TrustChain has to be unloaded after the tunnel overlay.
tunnel_community = self.tunnel_community
self.tunnel_community = None
yield self.ipv8.unload_overlay(tunnel_community)
trustchain_community = self.trustchain_community
self.trustchain_community = None
yield self.ipv8.unload_overlay(trustchain_community)
if self.dispersy:
self._logger.info("lmc: Shutting down Dispersy...")
now = timemod.time()
try:
success = yield self.dispersy.stop()
except:
print_exc()
success = False
diff = timemod.time() - now
if success:
self._logger.info("lmc: Dispersy successfully shutdown in %.2f seconds", diff)
else:
self._logger.info("lmc: Dispersy failed to shutdown in %.2f seconds", diff)
if self.ipv8:
yield self.ipv8.stop(stop_reactor=False)
if self.metadata_store is not None:
yield self.metadata_store.close()
self.metadata_store = None
if self.channelcast_db is not None:
yield self.channelcast_db.close()
self.channelcast_db = None
if self.votecast_db is not None:
yield self.votecast_db.close()
self.votecast_db = None
if self.mypref_db is not None:
yield self.mypref_db.close()
self.mypref_db = None
if self.torrent_db is not None:
yield self.torrent_db.close()
self.torrent_db = None
if self.peer_db is not None:
yield self.peer_db.close()
self.peer_db = None
if self.mainline_dht is not None:
from Tribler.Core.DecentralizedTracking import mainlineDHT
yield mainlineDHT.deinit(self.mainline_dht)
self.mainline_dht = None
if self.torrent_store is not None:
yield self.torrent_store.close()
self.torrent_store = None
if self.watch_folder is not None:
yield self.watch_folder.stop()
self.watch_folder = None
# We close the API manager as late as possible during shutdown.
if self.api_manager is not None:
yield self.api_manager.stop()
self.api_manager = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d", len(ts))
for t in ts:
self._logger.info("tlm: Thread still running=%s, daemon=%s, instance=%s", t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr is not None:
self.ltmgr.shutdown()
self.ltmgr = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
self.downloads[infohash].pstate_for_restart = pstate
self.register_anonymous_task("save_pstate", self.downloads[infohash].save_resume_data())
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.dispersy = None
self.state_cb_count = 0
self.previous_active_downloads = []
self.download_states_lc = None
self.get_peer_list = []
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.sesslock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.torrent_store = None
self.metadata_store = None
self.rtorrent_handler = None
self.tftp_handler = None
self.api_manager = None
self.watch_folder = None
self.version_check_manager = None
self.category = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.search_manager = None
self.channel_manager = None
self.video_server = None
self.mainline_dht = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
self.startup_deferred = Deferred()
self.boosting_manager = None
def register(self, session, sesslock):
assert isInIOThread()
if not self.registered:
self.registered = True
self.session = session
self.sesslock = sesslock
if self.session.get_torrent_store():
from Tribler.Core.leveldbstore import LevelDbStore
self.torrent_store = LevelDbStore(
self.session.get_torrent_store_dir())
if self.session.get_enable_metadata():
from Tribler.Core.leveldbstore import LevelDbStore
self.metadata_store = LevelDbStore(
self.session.get_metadata_store_dir())
# torrent collecting: RemoteTorrentHandler
if self.session.get_torrent_collecting():
from Tribler.Core.RemoteTorrentHandler import RemoteTorrentHandler
self.rtorrent_handler = RemoteTorrentHandler(self.session)
# TODO(emilon): move this to a megacache component or smth
if self.session.get_megacache():
from Tribler.Core.CacheDB.SqliteCacheDBHandler import (
PeerDBHandler, TorrentDBHandler, MyPreferenceDBHandler,
VoteCastDBHandler, ChannelCastDBHandler)
from Tribler.Core.Category.Category import Category
self._logger.debug('tlm: Reading Session state from %s',
self.session.get_state_dir())
self.category = Category()
# create DBHandlers
self.peer_db = PeerDBHandler(self.session)
self.torrent_db = TorrentDBHandler(self.session)
self.mypref_db = MyPreferenceDBHandler(self.session)
self.votecast_db = VoteCastDBHandler(self.session)
self.channelcast_db = ChannelCastDBHandler(self.session)
# initializes DBHandlers
self.peer_db.initialize()
self.torrent_db.initialize()
self.mypref_db.initialize()
self.votecast_db.initialize()
self.channelcast_db.initialize()
from Tribler.Core.Modules.tracker_manager import TrackerManager
self.tracker_manager = TrackerManager(self.session)
self.tracker_manager.initialize()
if self.session.get_videoserver_enabled():
self.video_server = VideoServer(
self.session.get_videoserver_port(), self.session)
self.video_server.start()
# Dispersy
self.tftp_handler = None
if self.session.get_dispersy():
from Tribler.dispersy.dispersy import Dispersy
from Tribler.dispersy.endpoint import StandaloneEndpoint
# set communication endpoint
endpoint = StandaloneEndpoint(self.session.get_dispersy_port(),
ip=self.session.get_ip())
working_directory = unicode(self.session.get_state_dir())
self.dispersy = Dispersy(endpoint, working_directory)
# register TFTP service
from Tribler.Core.TFTP.handler import TftpHandler
self.tftp_handler = TftpHandler(self.session,
endpoint,
"fffffffd".decode('hex'),
block_size=1024)
self.tftp_handler.initialize()
if self.session.get_enable_torrent_search(
) or self.session.get_enable_channel_search():
self.search_manager = SearchManager(self.session)
self.search_manager.initialize()
if not self.initComplete:
self.init()
self.session.add_observer(self.on_tribler_started, NTFY_TRIBLER,
[NTFY_STARTED])
self.session.notifier.notify(NTFY_TRIBLER, NTFY_STARTED, None)
return self.startup_deferred
def on_tribler_started(self, subject, changetype, objectID, *args):
reactor.callFromThread(self.startup_deferred.callback, None)
@blocking_call_on_reactor_thread
def load_communities(self):
self._logger.info("tribler: Preparing communities...")
now_time = timemod.time()
default_kwargs = {'tribler_session': self.session}
# Search Community
if self.session.get_enable_torrent_search():
from Tribler.community.search.community import SearchCommunity
self.dispersy.define_auto_load(SearchCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# AllChannel Community
if self.session.get_enable_channel_search():
from Tribler.community.allchannel.community import AllChannelCommunity
self.dispersy.define_auto_load(AllChannelCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# Channel Community
if self.session.get_channel_community_enabled():
from Tribler.community.channel.community import ChannelCommunity
self.dispersy.define_auto_load(ChannelCommunity,
self.session.dispersy_member,
load=True,
kargs=default_kwargs)
# PreviewChannel Community
if self.session.get_preview_channel_community_enabled():
from Tribler.community.channel.preview import PreviewChannelCommunity
self.dispersy.define_auto_load(PreviewChannelCommunity,
self.session.dispersy_member,
kargs=default_kwargs)
if self.session.get_tunnel_community_enabled():
tunnel_settings = TunnelSettings(tribler_session=self.session)
tunnel_kwargs = {
'tribler_session': self.session,
'settings': tunnel_settings
}
if self.session.get_enable_multichain():
multichain_kwargs = {'tribler_session': self.session}
# If the multichain is enabled, we use the permanent multichain keypair
# for both the multichain and the tunnel community
keypair = self.session.multichain_keypair
dispersy_member = self.dispersy.get_member(
private_key=keypair.key_to_bin())
from Tribler.community.multichain.community import MultiChainCommunity
self.dispersy.define_auto_load(MultiChainCommunity,
dispersy_member,
load=True,
kargs=multichain_kwargs)
else:
keypair = self.dispersy.crypto.generate_key(u"curve25519")
dispersy_member = self.dispersy.get_member(
private_key=self.dispersy.crypto.key_to_bin(keypair))
from Tribler.community.tunnel.hidden_community import HiddenTunnelCommunity
self.tunnel_community = self.dispersy.define_auto_load(
HiddenTunnelCommunity,
dispersy_member,
load=True,
kargs=tunnel_kwargs)[0]
# We don't want to automatically load other instances of this community with other master members.
self.dispersy.undefine_auto_load(HiddenTunnelCommunity)
self._logger.info("tribler: communities are ready in %.2f seconds",
timemod.time() - now_time)
def init(self):
if self.dispersy:
from Tribler.dispersy.community import HardKilledCommunity
self._logger.info("lmc: Starting Dispersy...")
now = timemod.time()
success = self.dispersy.start(self.session.autoload_discovery)
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy started successfully in %.2f seconds [port: %d]",
diff, self.dispersy.wan_address[1])
else:
self._logger.info(
"lmc: Dispersy failed to start in %.2f seconds", diff)
self.upnp_ports.append((self.dispersy.wan_address[1], 'UDP'))
from Tribler.dispersy.crypto import M2CryptoSK
self.session.dispersy_member = blockingCallFromThread(
reactor,
self.dispersy.get_member,
private_key=self.dispersy.crypto.key_to_bin(
M2CryptoSK(
filename=self.session.get_permid_keypair_filename())))
blockingCallFromThread(reactor,
self.dispersy.define_auto_load,
HardKilledCommunity,
self.session.dispersy_member,
load=True)
if self.session.get_megacache():
self.dispersy.database.attach_commit_callback(
self.session.sqlite_db.commit_now)
# notify dispersy finished loading
self.session.notifier.notify(NTFY_DISPERSY, NTFY_STARTED, None)
self.load_communities()
self.session.set_anon_proxy_settings(
2, ("127.0.0.1",
self.session.get_tunnel_community_socks5_listen_ports()))
if self.session.get_enable_channel_search():
from Tribler.Core.Modules.channel.channel_manager import ChannelManager
self.channel_manager = ChannelManager(self.session)
self.channel_manager.initialize()
if self.session.get_mainline_dht():
from Tribler.Core.DecentralizedTracking import mainlineDHT
self.mainline_dht = mainlineDHT.init(
('127.0.0.1', self.session.get_mainline_dht_listen_port()),
self.session.get_state_dir())
self.upnp_ports.append(
(self.session.get_mainline_dht_listen_port(), 'UDP'))
if self.session.get_libtorrent():
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
for port, protocol in self.upnp_ports:
self.ltmgr.add_upnp_mapping(port, protocol)
# add task for tracker checking
if self.session.get_torrent_checking():
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
if self.rtorrent_handler:
self.rtorrent_handler.initialize()
if self.api_manager:
self.api_manager.root_endpoint.start_endpoints()
if self.session.get_watch_folder_enabled():
self.watch_folder = WatchFolder(self.session)
self.watch_folder.start()
if self.session.get_creditmining_enable():
from Tribler.Core.CreditMining.BoostingManager import BoostingManager
self.boosting_manager = BoostingManager(self.session)
self.version_check_manager = VersionCheckManager(self.session)
self.session.set_download_states_callback(self.sesscb_states_callback)
self.initComplete = True
def add(self,
tdef,
dscfg,
pstate=None,
setupDelay=0,
hidden=False,
share_mode=False,
checkpoint_disabled=False):
""" Called by any thread """
d = None
with self.sesslock:
if not isinstance(
tdef, TorrentDefNoMetainfo) and not tdef.is_finalized():
raise ValueError("TorrentDef not finalized")
infohash = tdef.get_infohash()
# Create the destination directory if it does not exist yet
try:
if not os.path.isdir(dscfg.get_dest_dir()):
os.makedirs(dscfg.get_dest_dir())
except OSError:
self._logger.error(
"Unable to create the download destination directory.")
if dscfg.get_time_added() == 0:
dscfg.set_time_added(int(timemod.time()))
# Check if running or saved on disk
if infohash in self.downloads:
raise DuplicateDownloadException(
"This download already exists.")
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'),
pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
setup_deferred = d.setup(dscfg,
pstate,
wrapperDelay=setupDelay,
share_mode=share_mode,
checkpoint_disabled=checkpoint_disabled)
setup_deferred.addCallback(self.on_download_handle_created)
if d and not hidden and self.session.get_megacache():
@forceDBThread
def write_my_pref():
torrent_id = self.torrent_db.getTorrentID(infohash)
data = {'destination_path': d.get_dest_dir()}
self.mypref_db.addMyPreference(torrent_id, data)
if isinstance(tdef, TorrentDefNoMetainfo):
self.torrent_db.addOrGetTorrentID(tdef.get_infohash())
self.torrent_db.updateTorrent(tdef.get_infohash(),
name=tdef.get_name_as_unicode())
write_my_pref()
elif self.rtorrent_handler:
self.rtorrent_handler.save_torrent(tdef, write_my_pref)
else:
self.torrent_db.addExternalTorrent(
tdef, extra_info={'status': 'good'})
write_my_pref()
return d
def on_download_handle_created(self, download):
"""
This method is called when the download handle has been created.
Immediately checkpoint the download and write the resume data.
"""
return download.checkpoint()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
with self.sesslock:
d.stop_remove(removestate=removestate, removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
if not hidden:
self.remove_id(infohash)
if self.tunnel_community:
self.tunnel_community.on_download_removed(d)
def remove_id(self, infohash):
@forceDBThread
def do_db():
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id:
self.mypref_db.deletePreference(torrent_id)
if self.session.get_megacache():
do_db()
def get_downloads(self):
""" Called by any thread """
with self.sesslock:
return self.downloads.values() # copy, is mutable
def get_download(self, infohash):
""" Called by any thread """
with self.sesslock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.sesslock:
return infohash in self.downloads
def update_download_hops(self, download, new_hops):
"""
Update the amount of hops for a specified download. This can be done on runtime.
"""
infohash = binascii.hexlify(download.tdef.get_infohash())
self._logger.info("Updating the amount of hops of download %s",
infohash)
self.session.remove_download(download)
# copy the old download_config and change the hop count
dscfg = download.copy()
dscfg.set_hops(new_hops)
self.register_task(
"reschedule_download_%s" % infohash,
reactor.callLater(3, self.session.start_download_from_tdef,
download.tdef, dscfg))
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(),
old_def.get_name(),
dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
if isinstance(old_def, TorrentDefNoMetainfo):
@forceDBThread
def update_trackers_db(infohash, new_trackers):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id is not None:
self.torrent_db.addTorrentTrackerMappingInBatch(
torrent_id, new_trackers)
self.session.notifier.notify(
NTFY_TORRENTS, NTFY_UPDATE, infohash)
if self.session.get_megacache():
update_trackers_db(infohash, new_trackers)
elif not isinstance(
old_def,
TorrentDefNoMetainfo) and self.rtorrent_handler:
# Update collected torrents
self.rtorrent_handler.save_torrent(new_def)
#
# State retrieval
#
def stop_download_states_callback(self):
"""
Stop any download states callback if present.
"""
if self.is_pending_task_active("download_states_lc"):
self.cancel_pending_task("download_states_lc")
def set_download_states_callback(self, usercallback, interval=1.0):
"""
Set the download state callback. Remove any old callback if it's present.
"""
self.stop_download_states_callback()
self._logger.debug(
"Starting the download state callback with interval %f", interval)
self.download_states_lc = self.register_task(
"download_states_lc",
LoopingCall(self._invoke_states_cb, usercallback))
self.download_states_lc.start(interval)
def _invoke_states_cb(self, callback):
"""
Invoke the download states callback with a list of the download states.
"""
dslist = []
for d in self.downloads.values():
d.set_moreinfo_stats(
True in self.get_peer_list
or d.get_def().get_infohash() in self.get_peer_list)
ds = d.network_get_state(None, False)
dslist.append(ds)
def on_cb_done(new_get_peer_list):
self.get_peer_list = new_get_peer_list
return deferToThread(callback, dslist).addCallback(on_cb_done)
def sesscb_states_callback(self, states_list):
"""
This method is periodically (every second) called with a list of the download states of the active downloads.
"""
self.state_cb_count += 1
# Check to see if a download has finished
new_active_downloads = []
do_checkpoint = False
seeding_download_list = []
for ds in states_list:
state = ds.get_status()
download = ds.get_download()
tdef = download.get_def()
safename = tdef.get_name_as_unicode()
if state == DLSTATUS_DOWNLOADING:
new_active_downloads.append(safename)
elif state == DLSTATUS_STOPPED_ON_ERROR:
self._logger.error("Error during download: %s",
repr(ds.get_error()))
self.downloads.get(tdef.get_infohash()).stop()
self.session.notifier.notify(NTFY_TORRENT, NTFY_ERROR,
tdef.get_infohash(),
repr(ds.get_error()))
elif state == DLSTATUS_SEEDING:
seeding_download_list.append({
u'infohash': tdef.get_infohash(),
u'download': download
})
if safename in self.previous_active_downloads:
self.session.notifier.notify(NTFY_TORRENT, NTFY_FINISHED,
tdef.get_infohash(), safename)
do_checkpoint = True
elif download.get_hops() == 0 and download.get_safe_seeding():
hops = tribler_defaults.get('Tribler', {}).get(
'default_number_hops', 1)
self._logger.info(
"Moving completed torrent to tunneled session %d for hidden seeding %r",
hops, download)
self.session.remove_download(download)
# copy the old download_config and change the hop count
dscfg = download.copy()
dscfg.set_hops(hops)
# TODO(emilon): That's a hack to work around the fact that removing a torrent is racy.
self.register_task(
"reschedule_download_%s" % tdef.get_infohash(),
reactor.callLater(
5, self.session.start_download_from_tdef, tdef,
dscfg))
self.previous_active_downloads = new_active_downloads
if do_checkpoint:
self.session.checkpoint_downloads()
if self.state_cb_count % 4 == 0 and self.tunnel_community:
self.tunnel_community.monitor_downloads(states_list)
return []
#
# Persistence methods
#
def load_checkpoint(self):
""" Called by any thread """
def do_load_checkpoint():
with self.sesslock:
for i, filename in enumerate(
iglob(
os.path.join(
self.session.get_downloads_pstate_dir(),
'*.state'))):
self.resume_download(filename, setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint()
else:
self.register_task("load_checkpoint",
reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume sesslock already held """
try:
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(),
basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s",
infohash)
def resume_download(self, filename, setupDelay=0):
tdef = dscfg = pstate = None
try:
pstate = self.load_download_pstate(filename)
# SWIFTPROC
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'],
metainfo['name'],
metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('downloadconfig', 'saveas') and \
isinstance(pstate.get('downloadconfig', 'saveas'), tuple):
pstate.set('downloadconfig', 'saveas',
pstate.get('downloadconfig', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
except:
# pstate is invalid or non-existing
_, file = os.path.split(filename)
infohash = binascii.unhexlify(file[:-6])
torrent_data = self.torrent_store.get(infohash)
if torrent_data:
try:
tdef = TorrentDef.load_from_memory(torrent_data)
defaultDLConfig = DefaultDownloadStartupConfig.getInstance(
)
dscfg = defaultDLConfig.copy()
if self.mypref_db is not None:
dest_dir = self.mypref_db.getMyPrefStatsInfohash(
infohash)
if dest_dir and os.path.isdir(dest_dir):
dscfg.set_dest_dir(dest_dir)
except ValueError:
self._logger.warning("tlm: torrent data invalid")
if pstate is not None:
has_resume_data = pstate.get('state',
'engineresumedata') is not None
self._logger.debug(
"tlm: load_checkpoint: resumedata %s",
'len %s ' % len(pstate.get('state', 'engineresumedata'))
if has_resume_data else 'None')
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if not self.download_exists(tdef.get_infohash()):
self.add(tdef, dscfg, pstate, setupDelay=setupDelay)
else:
self._logger.info(
"tlm: not resuming checkpoint because download has already been added"
)
except Exception as e:
self._logger.exception(
"tlm: load check_point: exception while adding download %s",
tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s",
filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s",
filename, tdef, dscfg)
def checkpoint_downloads(self):
"""
Checkpoints all running downloads in Tribler.
Even if the list of Downloads changes in the mean time this is no problem.
For removals, dllist will still hold a pointer to the download, and additions are no problem
(just won't be included in list of states returned via callback).
"""
downloads = self.downloads.values()
deferred_list = []
self._logger.debug("tlm: checkpointing %s downloads", len(downloads))
for download in downloads:
deferred_list.append(download.checkpoint())
return DeferredList(deferred_list)
def shutdown_downloads(self):
"""
Shutdown all downloads in Tribler.
"""
for download in self.downloads.values():
download.stop()
def remove_pstate(self, infohash):
def do_remove():
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = binascii.hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug(
"remove pstate: removing dlcheckpoint entry %s",
filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning(
"remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
reactor.callFromThread(do_remove)
@inlineCallbacks
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
:returns a Deferred that will fire once all dependencies acknowledge they have shutdown.
"""
self._logger.info("tlm: early_shutdown")
self.cancel_all_pending_tasks()
# Note: sesslock not held
self.shutdownstarttime = timemod.time()
if self.boosting_manager:
yield self.boosting_manager.shutdown()
self.boosting_manager = None
if self.torrent_checker:
yield self.torrent_checker.shutdown()
self.torrent_checker = None
if self.channel_manager:
yield self.channel_manager.shutdown()
self.channel_manager = None
if self.search_manager:
yield self.search_manager.shutdown()
self.search_manager = None
if self.rtorrent_handler:
yield self.rtorrent_handler.shutdown()
self.rtorrent_handler = None
if self.video_server:
yield self.video_server.shutdown_server()
self.video_server = None
if self.version_check_manager:
self.version_check_manager.stop()
self.version_check_manager = None
if self.tracker_manager:
yield self.tracker_manager.shutdown()
self.tracker_manager = None
if self.dispersy:
self._logger.info("lmc: Shutting down Dispersy...")
now = timemod.time()
try:
success = yield self.dispersy.stop()
except:
print_exc()
success = False
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy successfully shutdown in %.2f seconds",
diff)
else:
self._logger.info(
"lmc: Dispersy failed to shutdown in %.2f seconds", diff)
if self.metadata_store is not None:
yield self.metadata_store.close()
self.metadata_store = None
if self.tftp_handler is not None:
yield self.tftp_handler.shutdown()
self.tftp_handler = None
if self.channelcast_db is not None:
yield self.channelcast_db.close()
self.channelcast_db = None
if self.votecast_db is not None:
yield self.votecast_db.close()
self.votecast_db = None
if self.mypref_db is not None:
yield self.mypref_db.close()
self.mypref_db = None
if self.torrent_db is not None:
yield self.torrent_db.close()
self.torrent_db = None
if self.peer_db is not None:
yield self.peer_db.close()
self.peer_db = None
if self.mainline_dht is not None:
from Tribler.Core.DecentralizedTracking import mainlineDHT
yield mainlineDHT.deinit(self.mainline_dht)
self.mainline_dht = None
if self.torrent_store is not None:
yield self.torrent_store.close()
self.torrent_store = None
if self.api_manager is not None:
yield self.api_manager.stop()
self.api_manager = None
if self.watch_folder is not None:
yield self.watch_folder.stop()
self.watch_folder = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d",
len(ts))
for t in ts:
self._logger.info(
"tlm: Thread still running=%s, daemon=%s, instance=%s",
t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr is not None:
self.ltmgr.shutdown()
self.ltmgr = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
self.downloads[infohash].pstate_for_restart = pstate
self.register_task("save_pstate %f" % timemod.clock(),
self.downloads[infohash].save_resume_data())
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
# Events from core meant for API user
#
def sessconfig_changed_callback(self, section, name, new_value, old_value):
value_changed = new_value != old_value
if section == 'libtorrent' and name == 'utp':
if self.ltmgr and value_changed:
self.ltmgr.set_utp(new_value)
elif section == 'libtorrent' and name == 'lt_proxyauth':
if self.ltmgr:
self.ltmgr.set_proxy_settings(
None, *self.session.get_libtorrent_proxy_settings())
# Return True/False, depending on whether or not the config value can be changed at runtime.
elif (section == 'general' and name in ['nickname', 'mugshot', 'videoanalyserpath']) or \
(section == 'libtorrent' and name in ['lt_proxytype', 'lt_proxyserver',
'anon_proxyserver', 'anon_proxytype', 'anon_proxyauth',
'anon_listen_port']) or \
(section == 'torrent_collecting' and name in ['stop_collecting_threshold']) or \
(section == 'watch_folder') or \
(section == 'tunnel_community' and name in ['socks5_listen_port']) or \
(section == 'credit_mining' and name in ['max_torrents_per_source', 'max_torrents_active',
'source_interval', 'swarm_interval', 'boosting_sources',
'boosting_enabled', 'boosting_disabled', 'archive_sources']):
return True
else:
return False
return True
class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.dispersy = None
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.sesslock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.threadpool = ThreadPoolManager()
self.torrent_store = None
self.metadata_store = None
self.rtorrent_handler = None
self.tftp_handler = None
self.cat = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.search_manager = None
self.channel_manager = None
self.videoplayer = None
self.mainline_dht = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
def register(self, session, sesslock, autoload_discovery=True):
if not self.registered:
self.registered = True
self.session = session
self.sesslock = sesslock
if self.session.get_torrent_store():
from Tribler.Core.leveldbstore import LevelDbStore
self.torrent_store = LevelDbStore(
self.session.get_torrent_store_dir())
if self.session.get_enable_metadata():
from Tribler.Core.leveldbstore import LevelDbStore
self.metadata_store = LevelDbStore(
self.session.get_metadata_store_dir())
# torrent collecting: RemoteTorrentHandler
if self.session.get_torrent_collecting():
from Tribler.Core.RemoteTorrentHandler import RemoteTorrentHandler
self.rtorrent_handler = RemoteTorrentHandler(self.session)
# TODO(emilon): move this to a megacache component or smth
if self.session.get_megacache():
from Tribler.Core.CacheDB.SqliteCacheDBHandler import (
PeerDBHandler, TorrentDBHandler, MyPreferenceDBHandler,
VoteCastDBHandler, ChannelCastDBHandler)
from Tribler.Category.Category import Category
self._logger.debug('tlm: Reading Session state from %s',
self.session.get_state_dir())
self.cat = Category.getInstance(self.session)
# create DBHandlers
self.peer_db = PeerDBHandler(self.session)
self.torrent_db = TorrentDBHandler(self.session)
self.mypref_db = MyPreferenceDBHandler(self.session)
self.votecast_db = VoteCastDBHandler(self.session)
self.channelcast_db = ChannelCastDBHandler(self.session)
# initializes DBHandlers
self.peer_db.initialize()
self.torrent_db.initialize()
self.mypref_db.initialize()
self.votecast_db.initialize()
self.channelcast_db.initialize()
from Tribler.Core.Modules.tracker_manager import TrackerManager
self.tracker_manager = TrackerManager(self.session)
self.tracker_manager.initialize()
if self.session.get_videoplayer():
self.videoplayer = VideoPlayer(self.session)
# Dispersy
self.session.dispersy_member = None
self.tftp_handler = None
if self.session.get_dispersy():
from Tribler.dispersy.dispersy import Dispersy
from Tribler.dispersy.endpoint import StandaloneEndpoint
# set communication endpoint
endpoint = StandaloneEndpoint(self.session.get_dispersy_port(),
ip=self.session.get_ip())
working_directory = unicode(self.session.get_state_dir())
self.dispersy = Dispersy(endpoint, working_directory)
# register TFTP service
from Tribler.Core.TFTP.handler import TftpHandler
self.tftp_handler = TftpHandler(self.session,
endpoint,
"fffffffd".decode('hex'),
block_size=1024)
self.tftp_handler.initialize()
if self.session.get_enable_torrent_search(
) or self.session.get_enable_channel_search():
self.search_manager = SearchManager(self.session)
self.search_manager.initialize()
if self.session.get_enable_channel_search():
from Tribler.Core.Modules.channel_manager import ChannelManager
self.channel_manager = ChannelManager(self.session)
self.channel_manager.initialize()
if not self.initComplete:
self.init(autoload_discovery)
def init(self, autoload_discovery):
if self.dispersy:
from Tribler.dispersy.community import HardKilledCommunity
self._logger.info("lmc: Starting Dispersy...")
now = timemod.time()
success = self.dispersy.start(autoload_discovery)
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy started successfully in %.2f seconds [port: %d]",
diff, self.dispersy.wan_address[1])
else:
self._logger.info(
"lmc: Dispersy failed to start in %.2f seconds", diff)
self.upnp_ports.append((self.dispersy.wan_address[1], 'UDP'))
from Tribler.dispersy.crypto import M2CryptoSK
self.session.dispersy_member = blockingCallFromThread(
reactor,
self.dispersy.get_member,
private_key=self.dispersy.crypto.key_to_bin(
M2CryptoSK(
filename=self.session.get_permid_keypair_filename())))
blockingCallFromThread(reactor,
self.dispersy.define_auto_load,
HardKilledCommunity,
self.session.dispersy_member,
load=True)
if self.session.get_megacache():
self.dispersy.database.attach_commit_callback(
self.session.sqlite_db.commit_now)
# notify dispersy finished loading
self.session.notifier.notify(NTFY_DISPERSY, NTFY_STARTED, None)
@blocking_call_on_reactor_thread
def load_communities():
# load communities
# Search Community
if self.session.get_enable_torrent_search():
from Tribler.community.search.community import SearchCommunity
self.dispersy.define_auto_load(
SearchCommunity,
self.session.dispersy_member,
load=True,
kargs={'tribler_session': self.session})
# AllChannel Community
if self.session.get_enable_channel_search():
from Tribler.community.allchannel.community import AllChannelCommunity
self.dispersy.define_auto_load(
AllChannelCommunity,
self.session.dispersy_member,
load=True,
kargs={'tribler_session': self.session})
load_communities()
from Tribler.Core.DecentralizedTracking import mainlineDHT
try:
self.mainline_dht = mainlineDHT.init(
('127.0.0.1', self.session.get_mainline_dht_listen_port()),
self.session.get_state_dir())
self.upnp_ports.append(
(self.session.get_mainline_dht_listen_port(), 'UDP'))
except:
print_exc()
if self.session.get_libtorrent():
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
# FIXME(lipu): upnp APIs are not exported in libtorrent python-binding.
#for port, protocol in self.upnp_ports:
# self.ltmgr.add_upnp_mapping(port, protocol)
# add task for tracker checking
if self.session.get_torrent_checking():
try:
from Tribler.Core.TorrentChecker.torrent_checker import TorrentChecker
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
except:
print_exc()
if self.rtorrent_handler:
self.rtorrent_handler.initialize()
self.initComplete = True
def add(self,
tdef,
dscfg,
pstate=None,
initialdlstatus=None,
setupDelay=0,
hidden=False):
""" Called by any thread """
d = None
self.sesslock.acquire()
try:
if not isinstance(
tdef, TorrentDefNoMetainfo) and not tdef.is_finalized():
raise ValueError("TorrentDef not finalized")
infohash = tdef.get_infohash()
# Check if running or saved on disk
if infohash in self.downloads:
raise DuplicateDownloadException()
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'),
pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
d.setup(dscfg,
pstate,
initialdlstatus,
self.network_engine_wrapper_created_callback,
wrapperDelay=setupDelay)
finally:
self.sesslock.release()
if d and not hidden and self.session.get_megacache():
@forceDBThread
def write_my_pref():
torrent_id = self.torrent_db.getTorrentID(infohash)
data = {'destination_path': d.get_dest_dir()}
self.mypref_db.addMyPreference(torrent_id, data)
if isinstance(tdef, TorrentDefNoMetainfo):
self.torrent_db.addOrGetTorrentID(tdef.get_infohash())
self.torrent_db.updateTorrent(tdef.get_infohash(),
name=tdef.get_name_as_unicode())
write_my_pref()
elif self.rtorrent_handler:
self.rtorrent_handler.save_torrent(tdef, write_my_pref)
else:
self.torrent_db.addExternalTorrent(
tdef, extra_info={'status': 'good'})
write_my_pref()
return d
def network_engine_wrapper_created_callback(self, d, pstate):
""" Called by network thread """
try:
if pstate is None:
# Checkpoint at startup
(infohash, pstate) = d.network_checkpoint()
self.save_download_pstate(infohash, pstate)
except:
print_exc()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
with self.sesslock:
d.stop_remove(removestate=removestate, removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
if not hidden:
self.remove_id(infohash)
def remove_id(self, infohash):
@forceDBThread
def do_db(infohash):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id:
self.mypref_db.deletePreference(torrent_id)
if self.session.get_megacache():
do_db(infohash)
def get_downloads(self):
""" Called by any thread """
with self.sesslock:
return self.downloads.values() # copy, is mutable
def get_download(self, infohash):
""" Called by any thread """
with self.sesslock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.sesslock:
return infohash in self.downloads
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(),
old_def.get_name(),
dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
if isinstance(old_def, TorrentDefNoMetainfo):
@forceDBThread
def update_trackers_db(infohash, new_trackers):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id is not None:
self.torrent_db.addTorrentTrackerMappingInBatch(
torrent_id, new_trackers)
self.session.notifier.notify(
NTFY_TORRENTS, NTFY_UPDATE, infohash)
if self.session.get_megacache():
update_trackers_db(infohash, new_trackers)
elif not isinstance(
old_def,
TorrentDefNoMetainfo) and self.rtorrent_handler:
# Update collected torrents
self.rtorrent_handler.save_torrent(new_def)
#
# State retrieval
#
def set_download_states_callback(self,
usercallback,
getpeerlist,
when=0.0):
""" Called by any thread """
for d in self.downloads.values():
# Arno, 2012-05-23: At Niels' request to get total transferred
# stats. Causes MOREINFO message to be sent from swift proc
# for every initiated dl.
# 2012-07-31: Turn MOREINFO on/off on demand for efficiency.
# 2013-04-17: Libtorrent now uses set_moreinfo_stats as well.
d.set_moreinfo_stats(True in getpeerlist
or d.get_def().get_infohash() in getpeerlist)
network_set_download_states_callback_lambda = lambda: self.network_set_download_states_callback(
usercallback)
self.threadpool.add_task(network_set_download_states_callback_lambda,
when)
def network_set_download_states_callback(self, usercallback):
""" Called by network thread """
dslist = []
for d in self.downloads.values():
try:
ds = d.network_get_state(None, False)
dslist.append(ds)
except:
# Niels, 2012-10-18: If Swift connection is crashing, it will raise an exception
# We're catching it here to continue building the downloadstates
print_exc()
# Invoke the usercallback function on a separate thread.
# After the callback is invoked, the return values will be passed to the
# returncallback for post-callback processing.
def session_getstate_usercallback_target():
when, newgetpeerlist = usercallback(dslist)
if when > 0.0:
# reschedule
self.set_download_states_callback(usercallback,
newgetpeerlist,
when=when)
self.threadpool.add_task(session_getstate_usercallback_target)
#
# Persistence methods
#
def load_checkpoint(self, initialdlstatus=None, initialdlstatus_dict={}):
""" Called by any thread """
def do_load_checkpoint(initialdlstatus, initialdlstatus_dict):
with self.sesslock:
for i, filename in enumerate(
iglob(
os.path.join(
self.session.get_downloads_pstate_dir(),
'*.state'))):
self.resume_download(filename,
initialdlstatus,
initialdlstatus_dict,
setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint(initialdlstatus, initialdlstatus_dict)
else:
self.register_task("load_checkpoint",
reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume sesslock already held """
try:
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(),
basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s",
infohash)
def resume_download(self,
filename,
initialdlstatus=None,
initialdlstatus_dict={},
setupDelay=0):
tdef = dscfg = pstate = None
try:
pstate = self.load_download_pstate(filename)
# SWIFTPROC
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'],
metainfo['name'],
metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('downloadconfig', 'saveas') and \
isinstance(pstate.get('downloadconfig', 'saveas'), tuple):
pstate.set('downloadconfig', 'saveas',
pstate.get('downloadconfig', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
except:
# pstate is invalid or non-existing
_, file = os.path.split(filename)
infohash = binascii.unhexlify(file[:-6])
torrent_data = self.torrent_store.get(infohash)
if torrent_data:
tdef = TorrentDef.load_from_memory(torrent_data)
defaultDLConfig = DefaultDownloadStartupConfig.getInstance()
dscfg = defaultDLConfig.copy()
if self.mypref_db is not None:
dest_dir = self.mypref_db.getMyPrefStatsInfohash(infohash)
if dest_dir:
if os.path.isdir(dest_dir) or dest_dir == '':
dscfg.set_dest_dir(dest_dir)
self._logger.debug("tlm: load_checkpoint: pstate is %s %s",
pstate.get('dlstate', 'status'),
pstate.get('dlstate', 'progress'))
if pstate is None or pstate.get('state', 'engineresumedata') is None:
self._logger.debug("tlm: load_checkpoint: resumedata None")
else:
self._logger.debug("tlm: load_checkpoint: resumedata len %d",
len(pstate.get('state', 'engineresumedata')))
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if not self.download_exists(tdef.get_infohash()):
initialdlstatus = initialdlstatus_dict.get(
tdef.get_infohash(), initialdlstatus)
self.add(tdef,
dscfg,
pstate,
initialdlstatus,
setupDelay=setupDelay)
else:
self._logger.info(
"tlm: not resuming checkpoint because download has already been added"
)
except Exception as e:
self._logger.exception(
"tlm: load check_point: exception while adding download %s",
tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s",
filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s",
filename, tdef, dscfg)
def checkpoint(self, stop=False, checkpoint=True, gracetime=2.0):
""" Called by any thread, assume sesslock already held """
# Even if the list of Downloads changes in the mean time this is
# no problem. For removals, dllist will still hold a pointer to the
# Download, and additions are no problem (just won't be included
# in list of states returned via callback.
#
dllist = self.downloads.values()
self._logger.debug("tlm: checkpointing %s stopping %s", len(dllist),
stop)
network_checkpoint_callback_lambda = lambda: self.network_checkpoint_callback(
dllist, stop, checkpoint, gracetime)
self.threadpool.add_task(network_checkpoint_callback_lambda, 0.0)
def network_checkpoint_callback(self, dllist, stop, checkpoint, gracetime):
""" Called by network thread """
if checkpoint:
for d in dllist:
try:
# Tell all downloads to stop, and save their persistent state
# in a infohash -> pstate dict which is then passed to the user
# for storage.
#
if stop:
(infohash, pstate) = d.network_stop(False, False)
else:
(infohash, pstate) = d.network_checkpoint()
self._logger.debug("tlm: network checkpointing: %s %s",
d.get_def().get_name(), pstate)
self.save_download_pstate(infohash, pstate)
except Exception as e:
self._logger.exception("Exception while checkpointing: %s",
d.get_def().get_name())
if stop:
# Some grace time for early shutdown tasks
if self.shutdownstarttime is not None:
now = timemod.time()
diff = now - self.shutdownstarttime
if diff < gracetime:
self._logger.info(
"tlm: shutdown: delaying for early shutdown tasks %s",
gracetime - diff)
delay = gracetime - diff
network_shutdown_callback_lambda = lambda: self.network_shutdown(
)
self.threadpool.add_task(network_shutdown_callback_lambda,
delay)
return
self.network_shutdown()
def remove_pstate(self, infohash):
network_remove_pstate_callback_lambda = lambda: self.network_remove_pstate_callback(
infohash)
self.threadpool.add_task(network_remove_pstate_callback_lambda, 0.0)
def network_remove_pstate_callback(self, infohash):
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = binascii.hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug(
"remove pstate: removing dlcheckpoint entry %s", filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning(
"remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
"""
self._logger.info("tlm: early_shutdown")
self.cancel_all_pending_tasks()
# Note: sesslock not held
self.shutdownstarttime = timemod.time()
if self.torrent_checker:
self.torrent_checker.shutdown()
self.torrent_checker = None
if self.channel_manager:
self.channel_manager.shutdown()
self.channel_manager = None
if self.search_manager:
self.search_manager.shutdown()
self.search_manager = None
if self.rtorrent_handler:
self.rtorrent_handler.shutdown()
self.rtorrent_handler = None
if self.videoplayer:
self.videoplayer.shutdown()
self.videoplayer = None
if self.tracker_manager:
self.tracker_manager.shutdown()
self.tracker_manager = None
if self.dispersy:
self._logger.info("lmc: Shutting down Dispersy...")
now = timemod.time()
try:
success = self.dispersy.stop()
except:
print_exc()
success = False
diff = timemod.time() - now
if success:
self._logger.info(
"lmc: Dispersy successfully shutdown in %.2f seconds",
diff)
else:
self._logger.info(
"lmc: Dispersy failed to shutdown in %.2f seconds", diff)
if self.metadata_store is not None:
self.metadata_store.close()
self.metadata_store = None
if self.tftp_handler:
self.tftp_handler.shutdown()
self.tftp_handler = None
if self.session.get_megacache():
self.channelcast_db.close()
self.votecast_db.close()
self.mypref_db.close()
self.torrent_db.close()
self.peer_db.close()
self.channelcast_db = None
self.votecast_db = None
self.mypref_db = None
self.torrent_db = None
self.peer_db = None
if self.mainline_dht:
from Tribler.Core.DecentralizedTracking import mainlineDHT
mainlineDHT.deinit(self.mainline_dht)
self.mainline_dht = None
if self.torrent_store is not None:
self.torrent_store.close()
self.torrent_store = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d",
len(ts))
for t in ts:
self._logger.info(
"tlm: Thread still running=%s, daemon=%s, instance=%s",
t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr:
self.ltmgr.shutdown()
self.ltmgr = None
if self.threadpool:
self.threadpool.cancel_all_pending_tasks()
self.threadpool = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(),
basename)
self._logger.debug("tlm: network checkpointing: to file %s", filename)
pstate.write_file(filename)
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
# Events from core meant for API user
#
def sessconfig_changed_callback(self, section, name, new_value, old_value):
value_changed = new_value != old_value
if section == 'libtorrent' and name == 'utp':
if self.ltmgr and value_changed:
self.ltmgr.set_utp(new_value)
elif section == 'libtorrent' and name == 'lt_proxyauth':
if self.ltmgr:
self.ltmgr.set_proxy_settings(
None, *self.session.get_libtorrent_proxy_settings())
# Return True/False, depending on whether or not the config value can be changed at runtime.
elif (section == 'general' and name in ['nickname', 'mugshot', 'videoanalyserpath']) or \
(section == 'libtorrent' and name in ['lt_proxytype', 'lt_proxyserver',
'anon_proxyserver', 'anon_proxytype', 'anon_proxyauth',
'anon_listen_port']) or \
(section == 'torrent_collecting' and name in ['stop_collecting_threshold']) or \
(section == 'tunnel_community' and name in ['socks5_listen_port']):
return True
else:
return False
return True
class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.ipv8 = None
self.ipv8_start_time = 0
self.state_cb_count = 0
self.previous_active_downloads = []
self.download_states_lc = None
self.get_peer_list = []
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.session_lock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.api_manager = None
self.watch_folder = None
self.version_check_manager = None
self.resource_monitor = None
self.category = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.gigachannel_manager = None
self.video_server = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
self.trustchain_community = None
self.wallets = {}
self.popularity_community = None
self.gigachannel_community = None
self.startup_deferred = Deferred()
self.credit_mining_manager = None
self.market_community = None
self.dht_community = None
self.payout_manager = None
self.mds = None
def register(self, session, session_lock):
assert isInIOThread()
if not self.registered:
self.registered = True
self.session = session
self.session_lock = session_lock
self.tracker_manager = TrackerManager(self.session)
# On Mac, we bundle the root certificate for the SSL validation since Twisted is not using the root
# certificates provided by the system trust store.
if sys.platform == 'darwin':
os.environ['SSL_CERT_FILE'] = os.path.join(
get_lib_path(), 'root_certs_mac.pem')
if self.session.config.get_video_server_enabled():
self.video_server = VideoServer(
self.session.config.get_video_server_port(), self.session)
self.video_server.start()
# IPv8
if self.session.config.get_ipv8_enabled():
from Tribler.pyipv8.ipv8.configuration import get_default_configuration
ipv8_config = get_default_configuration()
ipv8_config['port'] = self.session.config.get_ipv8_port()
ipv8_config['address'] = self.session.config.get_ipv8_address()
ipv8_config['overlays'] = []
ipv8_config['keys'] = [] # We load the keys ourselves
if self.session.config.get_ipv8_bootstrap_override():
import Tribler.pyipv8.ipv8.community as community_file
community_file._DEFAULT_ADDRESSES = [
self.session.config.get_ipv8_bootstrap_override()
]
community_file._DNS_ADDRESSES = []
self.ipv8 = IPv8(ipv8_config,
enable_statistics=self.session.config.
get_ipv8_statistics())
self.session.config.set_anon_proxy_settings(
2, ("127.0.0.1",
self.session.config.
get_tunnel_community_socks5_listen_ports()))
if not self.initComplete:
self.init()
self.session.add_observer(self.on_tribler_started, NTFY_TRIBLER,
[NTFY_STARTED])
self.session.notifier.notify(NTFY_TRIBLER, NTFY_STARTED, None)
return self.startup_deferred
def on_tribler_started(self, subject, changetype, objectID, *args):
reactor.callFromThread(self.startup_deferred.callback, None)
def load_ipv8_overlays(self):
if self.session.config.get_testnet():
peer = Peer(self.session.trustchain_testnet_keypair)
else:
peer = Peer(self.session.trustchain_keypair)
discovery_community = DiscoveryCommunity(peer, self.ipv8.endpoint,
self.ipv8.network)
discovery_community.resolve_dns_bootstrap_addresses()
self.ipv8.overlays.append(discovery_community)
self.ipv8.strategies.append((RandomChurn(discovery_community), -1))
self.ipv8.strategies.append(
(PeriodicSimilarity(discovery_community), -1))
self.ipv8.strategies.append((RandomWalk(discovery_community), 20))
# TrustChain Community
if self.session.config.get_trustchain_enabled():
from Tribler.pyipv8.ipv8.attestation.trustchain.community import TrustChainCommunity, \
TrustChainTestnetCommunity
community_cls = TrustChainTestnetCommunity if self.session.config.get_testnet(
) else TrustChainCommunity
self.trustchain_community = community_cls(
peer,
self.ipv8.endpoint,
self.ipv8.network,
working_directory=self.session.config.get_state_dir())
self.ipv8.overlays.append(self.trustchain_community)
self.ipv8.strategies.append(
(EdgeWalk(self.trustchain_community), 20))
tc_wallet = TrustchainWallet(self.trustchain_community)
self.wallets[tc_wallet.get_identifier()] = tc_wallet
# DHT Community
if self.session.config.get_dht_enabled():
from Tribler.pyipv8.ipv8.dht.discovery import DHTDiscoveryCommunity
self.dht_community = DHTDiscoveryCommunity(peer,
self.ipv8.endpoint,
self.ipv8.network)
self.ipv8.overlays.append(self.dht_community)
self.ipv8.strategies.append((RandomWalk(self.dht_community), 20))
# Tunnel Community
if self.session.config.get_tunnel_community_enabled():
from Tribler.community.triblertunnel.community import TriblerTunnelCommunity, TriblerTunnelTestnetCommunity
from Tribler.community.triblertunnel.discovery import GoldenRatioStrategy
community_cls = TriblerTunnelTestnetCommunity if self.session.config.get_testnet() else \
TriblerTunnelCommunity
random_slots = self.session.config.get_tunnel_community_random_slots(
)
competing_slots = self.session.config.get_tunnel_community_competing_slots(
)
dht_provider = DHTCommunityProvider(
self.dht_community, self.session.config.get_ipv8_port())
settings = TunnelSettings()
settings.min_circuits = 3
settings.max_circuits = 10
self.tunnel_community = community_cls(
peer,
self.ipv8.endpoint,
self.ipv8.network,
tribler_session=self.session,
dht_provider=dht_provider,
bandwidth_wallet=self.wallets["MB"],
random_slots=random_slots,
competing_slots=competing_slots,
settings=settings)
self.ipv8.overlays.append(self.tunnel_community)
self.ipv8.strategies.append(
(RandomWalk(self.tunnel_community), 20))
self.ipv8.strategies.append(
(GoldenRatioStrategy(self.tunnel_community), -1))
# Market Community
if self.session.config.get_market_community_enabled(
) and self.session.config.get_dht_enabled():
from Tribler.community.market.community import MarketCommunity, MarketTestnetCommunity
community_cls = MarketTestnetCommunity if self.session.config.get_testnet(
) else MarketCommunity
self.market_community = community_cls(
peer,
self.ipv8.endpoint,
self.ipv8.network,
tribler_session=self.session,
trustchain=self.trustchain_community,
dht=self.dht_community,
wallets=self.wallets,
working_directory=self.session.config.get_state_dir(),
record_transactions=self.session.config.
get_record_transactions())
self.ipv8.overlays.append(self.market_community)
self.ipv8.strategies.append(
(RandomWalk(self.market_community), 20))
# Popular Community
if self.session.config.get_popularity_community_enabled():
from Tribler.community.popularity.community import PopularityCommunity
self.popularity_community = PopularityCommunity(
peer,
self.ipv8.endpoint,
self.ipv8.network,
metadata_store=self.session.lm.mds,
session=self.session)
self.ipv8.overlays.append(self.popularity_community)
self.ipv8.strategies.append(
(RandomWalk(self.popularity_community), 20))
self.popularity_community.start()
# Gigachannel Community
if self.session.config.get_chant_enabled():
from Tribler.community.gigachannel.community import GigaChannelCommunity, GigaChannelTestnetCommunity
from Tribler.community.gigachannel.sync_strategy import SyncChannels
community_cls = GigaChannelTestnetCommunity if self.session.config.get_testnet(
) else GigaChannelCommunity
self.gigachannel_community = community_cls(
peer,
self.ipv8.endpoint,
self.ipv8.network,
self.mds,
notifier=self.session.notifier)
self.ipv8.overlays.append(self.gigachannel_community)
self.ipv8.strategies.append(
(RandomWalk(self.gigachannel_community), 20))
self.ipv8.strategies.append(
(SyncChannels(self.gigachannel_community), 20))
def enable_ipv8_statistics(self):
if self.session.config.get_ipv8_statistics():
for overlay in self.ipv8.overlays:
self.ipv8.endpoint.enable_community_statistics(
overlay.get_prefix(), True)
def init(self):
# Wallets
if self.session.config.get_bitcoinlib_enabled():
try:
from Tribler.Core.Modules.wallet.btc_wallet import BitcoinWallet, BitcoinTestnetWallet
wallet_path = os.path.join(self.session.config.get_state_dir(),
'wallet')
btc_wallet = BitcoinWallet(wallet_path)
btc_testnet_wallet = BitcoinTestnetWallet(wallet_path)
self.wallets[btc_wallet.get_identifier()] = btc_wallet
self.wallets[
btc_testnet_wallet.get_identifier()] = btc_testnet_wallet
except Exception as exc:
self._logger.error("bitcoinlib library cannot be loaded: %s",
exc)
if self.session.config.get_chant_enabled():
channels_dir = os.path.join(
self.session.config.get_chant_channels_dir())
database_path = os.path.join(self.session.config.get_state_dir(),
'sqlite', 'metadata.db')
self.mds = MetadataStore(database_path, channels_dir,
self.session.trustchain_keypair)
if self.session.config.get_dummy_wallets_enabled():
# For debugging purposes, we create dummy wallets
dummy_wallet1 = DummyWallet1()
self.wallets[dummy_wallet1.get_identifier()] = dummy_wallet1
dummy_wallet2 = DummyWallet2()
self.wallets[dummy_wallet2.get_identifier()] = dummy_wallet2
if self.ipv8:
self.ipv8_start_time = time.time()
self.load_ipv8_overlays()
self.enable_ipv8_statistics()
tunnel_community_ports = self.session.config.get_tunnel_community_socks5_listen_ports(
)
self.session.config.set_anon_proxy_settings(
2, ("127.0.0.1", tunnel_community_ports))
if self.session.config.get_libtorrent_enabled():
self.session.readable_status = STATE_START_LIBTORRENT
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
for port, protocol in self.upnp_ports:
self.ltmgr.add_upnp_mapping(port, protocol)
if self.session.config.get_chant_enabled():
self.gigachannel_manager = GigaChannelManager(self.session)
self.gigachannel_manager.start()
# add task for tracker checking
if self.session.config.get_torrent_checking_enabled():
self.session.readable_status = STATE_START_TORRENT_CHECKER
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
if self.api_manager:
self.session.readable_status = STATE_START_API_ENDPOINTS
self.api_manager.root_endpoint.start_endpoints()
if self.session.config.get_watch_folder_enabled():
self.session.readable_status = STATE_START_WATCH_FOLDER
self.watch_folder = WatchFolder(self.session)
self.watch_folder.start()
if self.session.config.get_credit_mining_enabled():
self.session.readable_status = STATE_START_CREDIT_MINING
from Tribler.Core.CreditMining.CreditMiningManager import CreditMiningManager
self.credit_mining_manager = CreditMiningManager(self.session)
if self.session.config.get_resource_monitor_enabled():
self.resource_monitor = ResourceMonitor(self.session)
self.resource_monitor.start()
if self.session.config.get_version_checker_enabled():
self.version_check_manager = VersionCheckManager(self.session)
self.version_check_manager.start()
self.session.set_download_states_callback(self.sesscb_states_callback)
if self.session.config.get_ipv8_enabled(
) and self.session.config.get_trustchain_enabled():
self.payout_manager = PayoutManager(self.trustchain_community,
self.dht_community)
self.initComplete = True
def add(self,
tdef,
dscfg,
pstate=None,
setupDelay=0,
hidden=False,
share_mode=False,
checkpoint_disabled=False):
""" Called by any thread """
d = None
with self.session_lock:
infohash = tdef.get_infohash()
# Create the destination directory if it does not exist yet
try:
if not os.path.isdir(dscfg.get_dest_dir()):
os.makedirs(dscfg.get_dest_dir())
except OSError:
self._logger.error(
"Unable to create the download destination directory.")
if dscfg.get_time_added() == 0:
dscfg.set_time_added(int(timemod.time()))
# Check if running or saved on disk
if infohash in self.downloads:
self._logger.info(
"Torrent already exists in the downloads. Infohash:%s",
hexlify(infohash))
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'),
pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
setup_deferred = d.setup(dscfg,
pstate,
wrapperDelay=setupDelay,
share_mode=share_mode,
checkpoint_disabled=checkpoint_disabled)
setup_deferred.addCallback(self.on_download_handle_created)
return d
def on_download_handle_created(self, download):
"""
This method is called when the download handle has been created.
Immediately checkpoint the download and write the resume data.
"""
return download.checkpoint()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
out = None
with self.session_lock:
out = d.stop_remove(removestate=removestate,
removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
return out or succeed(None)
def get_downloads(self):
""" Called by any thread """
with self.session_lock:
return self.downloads.values() # copy, is mutable
def get_channel_downloads(self):
with self.session_lock:
return [
download for download in self.downloads.values()
if download.get_channel_download()
]
def get_download(self, infohash):
""" Called by any thread """
with self.session_lock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.session_lock:
return infohash in self.downloads
@inlineCallbacks
def update_download_hops(self, download, new_hops):
"""
Update the amount of hops for a specified download. This can be done on runtime.
"""
infohash = hexlify(download.tdef.get_infohash())
self._logger.info("Updating the amount of hops of download %s",
infohash)
pstate = download.get_persistent_download_config()
pstate.set('state', 'engineresumedata',
(yield download.save_resume_data()))
yield self.session.remove_download(download)
# copy the old download_config and change the hop count
dscfg = download.copy()
dscfg.set_hops(new_hops)
# If the user wants to change the hop count to 0, don't automatically bump this up to 1 anymore
dscfg.set_safe_seeding(False)
self.session.start_download_from_tdef(download.tdef,
dscfg,
pstate=pstate)
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(),
old_def.get_name(),
dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
#
# State retrieval
#
def stop_download_states_callback(self):
"""
Stop any download states callback if present.
"""
if self.is_pending_task_active("download_states_lc"):
self.cancel_pending_task("download_states_lc")
def set_download_states_callback(self, user_callback, interval=1.0):
"""
Set the download state callback. Remove any old callback if it's present.
"""
self.stop_download_states_callback()
self._logger.debug(
"Starting the download state callback with interval %f", interval)
self.download_states_lc = self.register_task(
"download_states_lc",
LoopingCall(self._invoke_states_cb, user_callback))
self.download_states_lc.start(interval)
def _invoke_states_cb(self, callback):
"""
Invoke the download states callback with a list of the download states.
"""
dslist = []
for d in self.downloads.values():
d.set_moreinfo_stats(
True in self.get_peer_list
or d.get_def().get_infohash() in self.get_peer_list)
ds = d.network_get_state(None)
dslist.append(ds)
def on_cb_done(new_get_peer_list):
self.get_peer_list = new_get_peer_list
return deferToThread(callback, dslist).addCallback(on_cb_done)
def sesscb_states_callback(self, states_list):
"""
This method is periodically (every second) called with a list of the download states of the active downloads.
"""
self.state_cb_count += 1
# Check to see if a download has finished
new_active_downloads = []
do_checkpoint = False
seeding_download_list = []
for ds in states_list:
state = ds.get_status()
download = ds.get_download()
tdef = download.get_def()
safename = tdef.get_name_as_unicode()
infohash = tdef.get_infohash()
if state == DLSTATUS_DOWNLOADING:
new_active_downloads.append(infohash)
elif state == DLSTATUS_STOPPED_ON_ERROR:
self._logger.error("Error during download: %s",
repr(ds.get_error()))
if self.download_exists(infohash):
self.get_download(infohash).stop()
self.session.notifier.notify(NTFY_TORRENT,
NTFY_ERROR, infohash,
repr(ds.get_error()))
elif state == DLSTATUS_SEEDING:
seeding_download_list.append({
u'infohash': infohash,
u'download': download
})
if infohash in self.previous_active_downloads:
self.session.notifier.notify(NTFY_TORRENT, NTFY_FINISHED,
infohash, safename)
do_checkpoint = True
elif download.get_hops() == 0 and download.get_safe_seeding():
# Re-add the download with anonymity enabled
hops = self.session.config.get_default_number_hops()
self.update_download_hops(download, hops)
# Check the peers of this download every five seconds and add them to the payout manager when
# this peer runs a Tribler instance
if self.state_cb_count % 5 == 0 and download.get_hops(
) == 0 and self.payout_manager:
for peer in download.get_peerlist():
if peer["extended_version"].startswith('Tribler'):
self.payout_manager.update_peer(
unhexlify(peer["id"]), infohash, peer["dtotal"])
self.previous_active_downloads = new_active_downloads
if do_checkpoint:
self.session.checkpoint_downloads()
if self.state_cb_count % 4 == 0:
if self.tunnel_community:
self.tunnel_community.monitor_downloads(states_list)
if self.credit_mining_manager:
self.credit_mining_manager.monitor_downloads(states_list)
return []
#
# Persistence methods
#
def load_checkpoint(self):
""" Called by any thread """
def do_load_checkpoint():
with self.session_lock:
for i, filename in enumerate(
iglob(
os.path.join(
self.session.get_downloads_pstate_dir(),
'*.state'))):
self.resume_download(filename, setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint()
else:
self.register_task("load_checkpoint",
reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume session_lock already held """
try:
basename = hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(),
basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s",
infohash)
def resume_download(self, filename, setupDelay=0):
tdef = dscfg = pstate = None
pstate = self.load_download_pstate(filename)
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'], metainfo['name'],
metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('download_defaults', 'saveas') and \
isinstance(pstate.get('download_defaults', 'saveas'), tuple):
pstate.set('download_defaults', 'saveas',
pstate.get('download_defaults', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
if pstate is not None:
has_resume_data = pstate.get('state',
'engineresumedata') is not None
self._logger.debug(
"tlm: load_checkpoint: resumedata %s",
'len %s ' % len(pstate.get('state', 'engineresumedata'))
if has_resume_data else 'None')
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if self.download_exists(tdef.get_infohash()):
self._logger.info(
"tlm: not resuming checkpoint because download has already been added"
)
elif dscfg.get_credit_mining(
) and not self.session.config.get_credit_mining_enabled():
self._logger.info(
"tlm: not resuming checkpoint since token mining is disabled"
)
else:
self.add(tdef, dscfg, pstate, setupDelay=setupDelay)
except Exception as e:
self._logger.exception(
"tlm: load check_point: exception while adding download %s",
tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s",
filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s",
filename, tdef, dscfg)
def checkpoint_downloads(self):
"""
Checkpoints all running downloads in Tribler.
Even if the list of Downloads changes in the mean time this is no problem.
For removals, dllist will still hold a pointer to the download, and additions are no problem
(just won't be included in list of states returned via callback).
"""
downloads = self.downloads.values()
deferred_list = []
self._logger.debug("tlm: checkpointing %s downloads", len(downloads))
for download in downloads:
deferred_list.append(download.checkpoint())
return DeferredList(deferred_list)
def shutdown_downloads(self):
"""
Shutdown all downloads in Tribler.
"""
for download in self.downloads.values():
download.stop()
def remove_pstate(self, infohash):
def do_remove():
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug(
"remove pstate: removing dlcheckpoint entry %s",
filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning(
"remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
reactor.callFromThread(do_remove)
@inlineCallbacks
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
:returns a Deferred that will fire once all dependencies acknowledge they have shutdown.
"""
self._logger.info("tlm: early_shutdown")
self.shutdown_task_manager()
# Note: session_lock not held
self.shutdownstarttime = timemod.time()
if self.credit_mining_manager:
self.session.notify_shutdown_state(
"Shutting down Credit Mining...")
yield self.credit_mining_manager.shutdown()
self.credit_mining_manager = None
if self.torrent_checker:
self.session.notify_shutdown_state(
"Shutting down Torrent Checker...")
yield self.torrent_checker.shutdown()
self.torrent_checker = None
if self.gigachannel_manager:
self.session.notify_shutdown_state(
"Shutting down Gigachannel Manager...")
yield self.gigachannel_manager.shutdown()
self.gigachannel_manager = None
if self.video_server:
self.session.notify_shutdown_state("Shutting down Video Server...")
yield self.video_server.shutdown_server()
self.video_server = None
if self.version_check_manager:
self.session.notify_shutdown_state(
"Shutting down Version Checker...")
self.version_check_manager.stop()
self.version_check_manager = None
if self.resource_monitor:
self.session.notify_shutdown_state(
"Shutting down Resource Monitor...")
self.resource_monitor.stop()
self.resource_monitor = None
self.tracker_manager = None
if self.tunnel_community and self.trustchain_community:
# We unload these overlays manually since the TrustChain has to be unloaded after the tunnel overlay.
tunnel_community = self.tunnel_community
self.tunnel_community = None
self.session.notify_shutdown_state("Unloading Tunnel Community...")
yield self.ipv8.unload_overlay(tunnel_community)
trustchain_community = self.trustchain_community
self.trustchain_community = None
self.session.notify_shutdown_state(
"Shutting down TrustChain Community...")
yield self.ipv8.unload_overlay(trustchain_community)
if self.ipv8:
self.session.notify_shutdown_state("Shutting down IPv8...")
yield self.ipv8.stop(stop_reactor=False)
if self.channelcast_db is not None:
self.session.notify_shutdown_state(
"Shutting down ChannelCast DB...")
yield self.channelcast_db.close()
self.channelcast_db = None
if self.votecast_db is not None:
self.session.notify_shutdown_state("Shutting down VoteCast DB...")
yield self.votecast_db.close()
self.votecast_db = None
if self.mypref_db is not None:
self.session.notify_shutdown_state(
"Shutting down Preference DB...")
yield self.mypref_db.close()
self.mypref_db = None
if self.torrent_db is not None:
self.session.notify_shutdown_state("Shutting down Torrent DB...")
yield self.torrent_db.close()
self.torrent_db = None
if self.peer_db is not None:
self.session.notify_shutdown_state("Shutting down Peer DB...")
yield self.peer_db.close()
self.peer_db = None
if self.watch_folder is not None:
self.session.notify_shutdown_state("Shutting down Watch Folder...")
yield self.watch_folder.stop()
self.watch_folder = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d",
len(ts))
for t in ts:
self._logger.info(
"tlm: Thread still running=%s, daemon=%s, instance=%s",
t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr is not None:
self.ltmgr.shutdown()
self.ltmgr = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
self.downloads[infohash].pstate_for_restart = pstate
self.register_anonymous_task(
"save_pstate", self.downloads[infohash].save_resume_data())
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
class TriblerLaunchMany(TaskManager):
def __init__(self):
""" Called only once (unless we have multiple Sessions) by MainThread """
super(TriblerLaunchMany, self).__init__()
self.initComplete = False
self.registered = False
self.dispersy = None
self._logger = logging.getLogger(self.__class__.__name__)
self.downloads = {}
self.upnp_ports = []
self.session = None
self.sesslock = None
self.sessdoneflag = Event()
self.shutdownstarttime = None
# modules
self.threadpool = ThreadPoolManager()
self.torrent_store = None
self.metadata_store = None
self.rtorrent_handler = None
self.tftp_handler = None
self.cat = None
self.peer_db = None
self.torrent_db = None
self.mypref_db = None
self.votecast_db = None
self.channelcast_db = None
self.search_manager = None
self.channel_manager = None
self.videoplayer = None
self.mainline_dht = None
self.ltmgr = None
self.tracker_manager = None
self.torrent_checker = None
self.tunnel_community = None
def register(self, session, sesslock, autoload_discovery=True):
if not self.registered:
self.registered = True
self.session = session
self.sesslock = sesslock
if self.session.get_torrent_store():
from Tribler.Core.leveldbstore import LevelDbStore
self.torrent_store = LevelDbStore(self.session.get_torrent_store_dir())
if self.session.get_enable_metadata():
from Tribler.Core.leveldbstore import LevelDbStore
self.metadata_store = LevelDbStore(self.session.get_metadata_store_dir())
# torrent collecting: RemoteTorrentHandler
if self.session.get_torrent_collecting():
from Tribler.Core.RemoteTorrentHandler import RemoteTorrentHandler
self.rtorrent_handler = RemoteTorrentHandler(self.session)
# TODO(emilon): move this to a megacache component or smth
if self.session.get_megacache():
from Tribler.Core.CacheDB.SqliteCacheDBHandler import (PeerDBHandler, TorrentDBHandler,
MyPreferenceDBHandler, VoteCastDBHandler,
ChannelCastDBHandler)
from Tribler.Category.Category import Category
self._logger.debug('tlm: Reading Session state from %s', self.session.get_state_dir())
self.cat = Category.getInstance(self.session)
# create DBHandlers
self.peer_db = PeerDBHandler(self.session)
self.torrent_db = TorrentDBHandler(self.session)
self.mypref_db = MyPreferenceDBHandler(self.session)
self.votecast_db = VoteCastDBHandler(self.session)
self.channelcast_db = ChannelCastDBHandler(self.session)
# initializes DBHandlers
self.peer_db.initialize()
self.torrent_db.initialize()
self.mypref_db.initialize()
self.votecast_db.initialize()
self.channelcast_db.initialize()
from Tribler.Core.Modules.tracker_manager import TrackerManager
self.tracker_manager = TrackerManager(self.session)
self.tracker_manager.initialize()
if self.session.get_videoplayer():
self.videoplayer = VideoPlayer(self.session)
# Dispersy
self.session.dispersy_member = None
self.tftp_handler = None
if self.session.get_dispersy():
from Tribler.dispersy.dispersy import Dispersy
from Tribler.dispersy.endpoint import StandaloneEndpoint
# set communication endpoint
endpoint = StandaloneEndpoint(self.session.get_dispersy_port(), ip=self.session.get_ip())
working_directory = unicode(self.session.get_state_dir())
self.dispersy = Dispersy(endpoint, working_directory)
# register TFTP service
from Tribler.Core.TFTP.handler import TftpHandler
self.tftp_handler = TftpHandler(self.session, endpoint, "fffffffd".decode('hex'), block_size=1024)
self.tftp_handler.initialize()
if self.session.get_enable_torrent_search() or self.session.get_enable_channel_search():
self.search_manager = SearchManager(self.session)
self.search_manager.initialize()
if self.session.get_enable_channel_search():
from Tribler.Core.Modules.channel_manager import ChannelManager
self.channel_manager = ChannelManager(self.session)
self.channel_manager.initialize()
if not self.initComplete:
self.init(autoload_discovery)
def init(self, autoload_discovery):
if self.dispersy:
from Tribler.dispersy.community import HardKilledCommunity
self._logger.info("lmc: Starting Dispersy...")
now = timemod.time()
success = self.dispersy.start(autoload_discovery)
diff = timemod.time() - now
if success:
self._logger.info("lmc: Dispersy started successfully in %.2f seconds [port: %d]",
diff, self.dispersy.wan_address[1])
else:
self._logger.info("lmc: Dispersy failed to start in %.2f seconds", diff)
self.upnp_ports.append((self.dispersy.wan_address[1], 'UDP'))
from Tribler.dispersy.crypto import M2CryptoSK
self.session.dispersy_member = blockingCallFromThread(reactor, self.dispersy.get_member,
private_key=self.dispersy.crypto.key_to_bin(M2CryptoSK(filename=self.session.get_permid_keypair_filename())))
blockingCallFromThread(reactor, self.dispersy.define_auto_load, HardKilledCommunity,
self.session.dispersy_member, load=True)
if self.session.get_megacache():
self.dispersy.database.attach_commit_callback(self.session.sqlite_db.commit_now)
# notify dispersy finished loading
self.session.notifier.notify(NTFY_DISPERSY, NTFY_STARTED, None)
@blocking_call_on_reactor_thread
def load_communities():
# load communities
# Search Community
if self.session.get_enable_torrent_search():
from Tribler.community.search.community import SearchCommunity
self.dispersy.define_auto_load(SearchCommunity, self.session.dispersy_member, load=True,
kargs={'tribler_session': self.session})
# AllChannel Community
if self.session.get_enable_channel_search():
from Tribler.community.allchannel.community import AllChannelCommunity
self.dispersy.define_auto_load(AllChannelCommunity, self.session.dispersy_member, load=True,
kargs={'tribler_session': self.session})
load_communities()
from Tribler.Core.DecentralizedTracking import mainlineDHT
try:
self.mainline_dht = mainlineDHT.init(('127.0.0.1', self.session.get_mainline_dht_listen_port()),
self.session.get_state_dir())
self.upnp_ports.append((self.session.get_mainline_dht_listen_port(), 'UDP'))
except:
print_exc()
if self.session.get_libtorrent():
from Tribler.Core.Libtorrent.LibtorrentMgr import LibtorrentMgr
self.ltmgr = LibtorrentMgr(self.session)
self.ltmgr.initialize()
# FIXME(lipu): upnp APIs are not exported in libtorrent python-binding.
#for port, protocol in self.upnp_ports:
# self.ltmgr.add_upnp_mapping(port, protocol)
# add task for tracker checking
if self.session.get_torrent_checking():
try:
from Tribler.Core.TorrentChecker.torrent_checker import TorrentChecker
self.torrent_checker = TorrentChecker(self.session)
self.torrent_checker.initialize()
except:
print_exc()
if self.rtorrent_handler:
self.rtorrent_handler.initialize()
self.initComplete = True
def add(self, tdef, dscfg, pstate=None, initialdlstatus=None, setupDelay=0, hidden=False):
""" Called by any thread """
d = None
self.sesslock.acquire()
try:
if not isinstance(tdef, TorrentDefNoMetainfo) and not tdef.is_finalized():
raise ValueError("TorrentDef not finalized")
infohash = tdef.get_infohash()
# Check if running or saved on disk
if infohash in self.downloads:
raise DuplicateDownloadException()
from Tribler.Core.Libtorrent.LibtorrentDownloadImpl import LibtorrentDownloadImpl
d = LibtorrentDownloadImpl(self.session, tdef)
if pstate is None: # not already resuming
pstate = self.load_download_pstate_noexc(infohash)
if pstate is not None:
self._logger.debug("tlm: add: pstate is %s %s",
pstate.get('dlstate', 'status'), pstate.get('dlstate', 'progress'))
# Store in list of Downloads, always.
self.downloads[infohash] = d
d.setup(dscfg, pstate, initialdlstatus, self.network_engine_wrapper_created_callback,
wrapperDelay=setupDelay)
finally:
self.sesslock.release()
if d and not hidden and self.session.get_megacache():
@forceDBThread
def write_my_pref():
torrent_id = self.torrent_db.getTorrentID(infohash)
data = {'destination_path': d.get_dest_dir()}
self.mypref_db.addMyPreference(torrent_id, data)
if isinstance(tdef, TorrentDefNoMetainfo):
self.torrent_db.addOrGetTorrentID(tdef.get_infohash())
self.torrent_db.updateTorrent(tdef.get_infohash(), name=tdef.get_name_as_unicode())
write_my_pref()
elif self.rtorrent_handler:
self.rtorrent_handler.save_torrent(tdef, write_my_pref)
else:
self.torrent_db.addExternalTorrent(tdef, extra_info={'status': 'good'})
write_my_pref()
return d
def network_engine_wrapper_created_callback(self, d, pstate):
""" Called by network thread """
try:
if pstate is None:
# Checkpoint at startup
(infohash, pstate) = d.network_checkpoint()
self.save_download_pstate(infohash, pstate)
except:
print_exc()
def remove(self, d, removecontent=False, removestate=True, hidden=False):
""" Called by any thread """
with self.sesslock:
d.stop_remove(removestate=removestate, removecontent=removecontent)
infohash = d.get_def().get_infohash()
if infohash in self.downloads:
del self.downloads[infohash]
if not hidden:
self.remove_id(infohash)
def remove_id(self, infohash):
@forceDBThread
def do_db(infohash):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id:
self.mypref_db.deletePreference(torrent_id)
if self.session.get_megacache():
do_db(infohash)
def get_downloads(self):
""" Called by any thread """
with self.sesslock:
return self.downloads.values() # copy, is mutable
def get_download(self, infohash):
""" Called by any thread """
with self.sesslock:
return self.downloads.get(infohash, None)
def download_exists(self, infohash):
with self.sesslock:
return infohash in self.downloads
def update_trackers(self, infohash, trackers):
""" Update the trackers for a download.
:param infohash: infohash of the torrent that needs to be updated
:param trackers: A list of tracker urls.
"""
dl = self.get_download(infohash)
old_def = dl.get_def() if dl else None
if old_def:
old_trackers = old_def.get_trackers_as_single_tuple()
new_trackers = list(set(trackers) - set(old_trackers))
all_trackers = list(old_trackers) + new_trackers
if new_trackers:
# Add new trackers to the download
dl.add_trackers(new_trackers)
# Create a new TorrentDef
if isinstance(old_def, TorrentDefNoMetainfo):
new_def = TorrentDefNoMetainfo(old_def.get_infohash(), old_def.get_name(), dl.get_magnet_link())
else:
metainfo = old_def.get_metainfo()
if len(all_trackers) > 1:
metainfo["announce-list"] = [all_trackers]
else:
metainfo["announce"] = all_trackers[0]
new_def = TorrentDef.load_from_dict(metainfo)
# Set TorrentDef + checkpoint
dl.set_def(new_def)
dl.checkpoint()
if isinstance(old_def, TorrentDefNoMetainfo):
@forceDBThread
def update_trackers_db(infohash, new_trackers):
torrent_id = self.torrent_db.getTorrentID(infohash)
if torrent_id is not None:
self.torrent_db.addTorrentTrackerMappingInBatch(torrent_id, new_trackers)
self.session.notifier.notify(NTFY_TORRENTS, NTFY_UPDATE, infohash)
if self.session.get_megacache():
update_trackers_db(infohash, new_trackers)
elif not isinstance(old_def, TorrentDefNoMetainfo) and self.rtorrent_handler:
# Update collected torrents
self.rtorrent_handler.save_torrent(new_def)
#
# State retrieval
#
def set_download_states_callback(self, usercallback, getpeerlist, when=0.0):
""" Called by any thread """
for d in self.downloads.values():
# Arno, 2012-05-23: At Niels' request to get total transferred
# stats. Causes MOREINFO message to be sent from swift proc
# for every initiated dl.
# 2012-07-31: Turn MOREINFO on/off on demand for efficiency.
# 2013-04-17: Libtorrent now uses set_moreinfo_stats as well.
d.set_moreinfo_stats(True in getpeerlist or d.get_def().get_infohash() in getpeerlist)
network_set_download_states_callback_lambda = lambda: self.network_set_download_states_callback(usercallback)
self.threadpool.add_task(network_set_download_states_callback_lambda, when)
def network_set_download_states_callback(self, usercallback):
""" Called by network thread """
dslist = []
for d in self.downloads.values():
try:
ds = d.network_get_state(None, False)
dslist.append(ds)
except:
# Niels, 2012-10-18: If Swift connection is crashing, it will raise an exception
# We're catching it here to continue building the downloadstates
print_exc()
# Invoke the usercallback function on a separate thread.
# After the callback is invoked, the return values will be passed to the
# returncallback for post-callback processing.
def session_getstate_usercallback_target():
when, newgetpeerlist = usercallback(dslist)
if when > 0.0:
# reschedule
self.set_download_states_callback(usercallback, newgetpeerlist, when=when)
self.threadpool.add_task(session_getstate_usercallback_target)
#
# Persistence methods
#
def load_checkpoint(self, initialdlstatus=None, initialdlstatus_dict={}):
""" Called by any thread """
def do_load_checkpoint(initialdlstatus, initialdlstatus_dict):
with self.sesslock:
for i, filename in enumerate(iglob(os.path.join(self.session.get_downloads_pstate_dir(), '*.state'))):
self.resume_download(filename, initialdlstatus, initialdlstatus_dict, setupDelay=i * 0.1)
if self.initComplete:
do_load_checkpoint(initialdlstatus, initialdlstatus_dict)
else:
self.register_task("load_checkpoint", reactor.callLater(1, do_load_checkpoint))
def load_download_pstate_noexc(self, infohash):
""" Called by any thread, assume sesslock already held """
try:
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(), basename)
if os.path.exists(filename):
return self.load_download_pstate(filename)
else:
self._logger.info("%s not found", basename)
except Exception:
self._logger.exception("Exception while loading pstate: %s", infohash)
def resume_download(self, filename, initialdlstatus=None, initialdlstatus_dict={}, setupDelay=0):
tdef = dscfg = pstate = None
try:
pstate = self.load_download_pstate(filename)
# SWIFTPROC
metainfo = pstate.get('state', 'metainfo')
if 'infohash' in metainfo:
tdef = TorrentDefNoMetainfo(metainfo['infohash'], metainfo['name'], metainfo.get('url', None))
else:
tdef = TorrentDef.load_from_dict(metainfo)
if pstate.has_option('downloadconfig', 'saveas') and \
isinstance(pstate.get('downloadconfig', 'saveas'), tuple):
pstate.set('downloadconfig', 'saveas', pstate.get('downloadconfig', 'saveas')[-1])
dscfg = DownloadStartupConfig(pstate)
except:
# pstate is invalid or non-existing
_, file = os.path.split(filename)
infohash = binascii.unhexlify(file[:-6])
torrent_data = self.torrent_store.get(infohash)
if torrent_data:
tdef = TorrentDef.load_from_memory(torrent_data)
defaultDLConfig = DefaultDownloadStartupConfig.getInstance()
dscfg = defaultDLConfig.copy()
if self.mypref_db is not None:
dest_dir = self.mypref_db.getMyPrefStatsInfohash(infohash)
if dest_dir:
if os.path.isdir(dest_dir) or dest_dir == '':
dscfg.set_dest_dir(dest_dir)
self._logger.debug("tlm: load_checkpoint: pstate is %s %s",
pstate.get('dlstate', 'status'), pstate.get('dlstate', 'progress'))
if pstate is None or pstate.get('state', 'engineresumedata') is None:
self._logger.debug("tlm: load_checkpoint: resumedata None")
else:
self._logger.debug("tlm: load_checkpoint: resumedata len %d", len(pstate.get('state', 'engineresumedata')))
if tdef and dscfg:
if dscfg.get_dest_dir() != '': # removed torrent ignoring
try:
if not self.download_exists(tdef.get_infohash()):
initialdlstatus = initialdlstatus_dict.get(tdef.get_infohash(), initialdlstatus)
self.add(tdef, dscfg, pstate, initialdlstatus, setupDelay=setupDelay)
else:
self._logger.info("tlm: not resuming checkpoint because download has already been added")
except Exception as e:
self._logger.exception("tlm: load check_point: exception while adding download %s", tdef)
else:
self._logger.info("tlm: removing checkpoint %s destdir is %s", filename, dscfg.get_dest_dir())
os.remove(filename)
else:
self._logger.info("tlm: could not resume checkpoint %s %s %s", filename, tdef, dscfg)
def checkpoint(self, stop=False, checkpoint=True, gracetime=2.0):
""" Called by any thread, assume sesslock already held """
# Even if the list of Downloads changes in the mean time this is
# no problem. For removals, dllist will still hold a pointer to the
# Download, and additions are no problem (just won't be included
# in list of states returned via callback.
#
dllist = self.downloads.values()
self._logger.debug("tlm: checkpointing %s stopping %s", len(dllist), stop)
network_checkpoint_callback_lambda = lambda: self.network_checkpoint_callback(dllist, stop, checkpoint,
gracetime)
self.threadpool.add_task(network_checkpoint_callback_lambda, 0.0)
def network_checkpoint_callback(self, dllist, stop, checkpoint, gracetime):
""" Called by network thread """
if checkpoint:
for d in dllist:
try:
# Tell all downloads to stop, and save their persistent state
# in a infohash -> pstate dict which is then passed to the user
# for storage.
#
if stop:
(infohash, pstate) = d.network_stop(False, False)
else:
(infohash, pstate) = d.network_checkpoint()
self._logger.debug("tlm: network checkpointing: %s %s", d.get_def().get_name(), pstate)
self.save_download_pstate(infohash, pstate)
except Exception as e:
self._logger.exception("Exception while checkpointing: %s", d.get_def().get_name())
if stop:
# Some grace time for early shutdown tasks
if self.shutdownstarttime is not None:
now = timemod.time()
diff = now - self.shutdownstarttime
if diff < gracetime:
self._logger.info("tlm: shutdown: delaying for early shutdown tasks %s", gracetime - diff)
delay = gracetime - diff
network_shutdown_callback_lambda = lambda: self.network_shutdown()
self.threadpool.add_task(network_shutdown_callback_lambda, delay)
return
self.network_shutdown()
def remove_pstate(self, infohash):
network_remove_pstate_callback_lambda = lambda: self.network_remove_pstate_callback(infohash)
self.threadpool.add_task(network_remove_pstate_callback_lambda, 0.0)
def network_remove_pstate_callback(self, infohash):
if not self.download_exists(infohash):
dlpstatedir = self.session.get_downloads_pstate_dir()
# Remove checkpoint
hexinfohash = binascii.hexlify(infohash)
try:
basename = hexinfohash + '.state'
filename = os.path.join(dlpstatedir, basename)
self._logger.debug("remove pstate: removing dlcheckpoint entry %s", filename)
if os.access(filename, os.F_OK):
os.remove(filename)
except:
# Show must go on
self._logger.exception("Could not remove state")
else:
self._logger.warning("remove pstate: download is back, restarted? Canceling removal! %s",
repr(infohash))
def early_shutdown(self):
""" Called as soon as Session shutdown is initiated. Used to start
shutdown tasks that takes some time and that can run in parallel
to checkpointing, etc.
"""
self._logger.info("tlm: early_shutdown")
self.cancel_all_pending_tasks()
# Note: sesslock not held
self.shutdownstarttime = timemod.time()
if self.torrent_checker:
self.torrent_checker.shutdown()
self.torrent_checker = None
if self.channel_manager:
self.channel_manager.shutdown()
self.channel_manager = None
if self.search_manager:
self.search_manager.shutdown()
self.search_manager = None
if self.rtorrent_handler:
self.rtorrent_handler.shutdown()
self.rtorrent_handler = None
if self.videoplayer:
self.videoplayer.shutdown()
self.videoplayer = None
if self.tracker_manager:
self.tracker_manager.shutdown()
self.tracker_manager = None
if self.dispersy:
self._logger.info("lmc: Shutting down Dispersy...")
now = timemod.time()
try:
success = self.dispersy.stop()
except:
print_exc()
success = False
diff = timemod.time() - now
if success:
self._logger.info("lmc: Dispersy successfully shutdown in %.2f seconds", diff)
else:
self._logger.info("lmc: Dispersy failed to shutdown in %.2f seconds", diff)
if self.metadata_store is not None:
self.metadata_store.close()
self.metadata_store = None
if self.tftp_handler:
self.tftp_handler.shutdown()
self.tftp_handler = None
if self.session.get_megacache():
self.channelcast_db.close()
self.votecast_db.close()
self.mypref_db.close()
self.torrent_db.close()
self.peer_db.close()
self.channelcast_db = None
self.votecast_db = None
self.mypref_db = None
self.torrent_db = None
self.peer_db = None
if self.mainline_dht:
from Tribler.Core.DecentralizedTracking import mainlineDHT
mainlineDHT.deinit(self.mainline_dht)
self.mainline_dht = None
if self.torrent_store is not None:
self.torrent_store.close()
self.torrent_store = None
def network_shutdown(self):
try:
self._logger.info("tlm: network_shutdown")
ts = enumerate_threads()
self._logger.info("tlm: Number of threads still running %d", len(ts))
for t in ts:
self._logger.info("tlm: Thread still running=%s, daemon=%s, instance=%s", t.getName(), t.isDaemon(), t)
except:
print_exc()
# Stop network thread
self.sessdoneflag.set()
# Shutdown libtorrent session after checkpoints have been made
if self.ltmgr:
self.ltmgr.shutdown()
self.ltmgr = None
if self.threadpool:
self.threadpool.cancel_all_pending_tasks()
self.threadpool = None
def save_download_pstate(self, infohash, pstate):
""" Called by network thread """
basename = binascii.hexlify(infohash) + '.state'
filename = os.path.join(self.session.get_downloads_pstate_dir(), basename)
self._logger.debug("tlm: network checkpointing: to file %s", filename)
pstate.write_file(filename)
def load_download_pstate(self, filename):
""" Called by any thread """
pstate = CallbackConfigParser()
pstate.read_file(filename)
return pstate
# Events from core meant for API user
#
def sessconfig_changed_callback(self, section, name, new_value, old_value):
value_changed = new_value != old_value
if section == 'libtorrent' and name == 'utp':
if self.ltmgr and value_changed:
self.ltmgr.set_utp(new_value)
elif section == 'libtorrent' and name == 'lt_proxyauth':
if self.ltmgr:
self.ltmgr.set_proxy_settings(None, *self.session.get_libtorrent_proxy_settings())
# Return True/False, depending on whether or not the config value can be changed at runtime.
elif (section == 'general' and name in ['nickname', 'mugshot', 'videoanalyserpath']) or \
(section == 'libtorrent' and name in ['lt_proxytype', 'lt_proxyserver',
'anon_proxyserver', 'anon_proxytype', 'anon_proxyauth',
'anon_listen_port']) or \
(section == 'torrent_collecting' and name in ['stop_collecting_threshold']) or \
(section == 'tunnel_community' and name in ['socks5_listen_port']):
return True
else:
return False
return True