270 lines
12 KiB
Python
Executable File
270 lines
12 KiB
Python
Executable File
'''
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Onionr - Private P2P Communication
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This file contains both the OnionrCommunicate class for communcating with peers
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and code to operate as a daemon, getting commands from the command queue database (see core.Core.daemonQueue)
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'''
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'''
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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import sys, os, time
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import config, logger
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import onionrexceptions, onionrpeers
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from onionrblocks import onionrblockapi as block
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from onionrplugins import onionrevents as events
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import onionrplugins as plugins
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from . import onlinepeers, uploadqueue
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from communicatorutils import servicecreator, onionrcommunicatortimers
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from communicatorutils import downloadblocks, lookupblocks, lookupadders
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from communicatorutils import servicecreator, connectnewpeers
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from communicatorutils import uploadblocks
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from communicatorutils import daemonqueuehandler, announcenode, deniableinserts
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from communicatorutils import cooldownpeer, housekeeping, netcheck
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from onionrutils import localcommand, epoch
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from etc import humanreadabletime
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import onionrservices, filepaths
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from onionrblocks import storagecounter
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from coredb import daemonqueue, dbfiles
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from utils import gettransports
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from netcontroller import NetController
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OnionrCommunicatorTimers = onionrcommunicatortimers.OnionrCommunicatorTimers
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config.reload()
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class OnionrCommunicatorDaemon:
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def __init__(self, shared_state, developmentMode=config.get('general.dev_mode', False)):
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# configure logger and stuff
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self.config = config
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self.storage_counter = storagecounter.StorageCounter()
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self.isOnline = True # Assume we're connected to the internet
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self.shared_state = shared_state # TooManyObjects module
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# list of timer instances
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self.timers = []
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# initialize core with Tor socks port being 3rd argument
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self.proxyPort = shared_state.get(NetController).socksPort
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# Upload information, list of blocks to upload
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self.blocksToUpload = []
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self.upload_session_manager = self.shared_state.get(uploadblocks.sessionmanager.BlockUploadSessionManager)
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self.shared_state.share_object()
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# loop time.sleep delay in seconds
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self.delay = 1
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# lists of connected peers and peers we know we can't reach currently
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self.onlinePeers = []
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self.offlinePeers = []
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self.cooldownPeer = {}
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self.connectTimes = {}
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self.peerProfiles = [] # list of peer's profiles (onionrpeers.PeerProfile instances)
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self.newPeers = [] # Peers merged to us. Don't add to db until we know they're reachable
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self.announceProgress = {}
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self.announceCache = {}
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self.generating_blocks = []
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# amount of threads running by name, used to prevent too many
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self.threadCounts = {}
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# set true when shutdown command received
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self.shutdown = False
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# list of new blocks to download, added to when new block lists are fetched from peers
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self.blockQueue = {}
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# list of blocks currently downloading, avoid s
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self.currentDownloading = []
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# timestamp when the last online node was seen
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self.lastNodeSeen = None
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# Dict of time stamps for peer's block list lookup times, to avoid downloading full lists all the time
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self.dbTimestamps = {}
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# Clear the daemon queue for any dead messages
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if os.path.exists(dbfiles.daemon_queue_db):
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daemonqueue.clear_daemon_queue()
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# Loads in and starts the enabled plugins
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plugins.reload()
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# time app started running for info/statistics purposes
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self.startTime = epoch.get_epoch()
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uploadqueue.UploadQueue(self) # extends our upload list and saves our list when Onionr exits
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if developmentMode:
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OnionrCommunicatorTimers(self, self.heartbeat, 30)
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# Set timers, function reference, seconds
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# requires_peer True means the timer function won't fire if we have no connected peers
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peerPoolTimer = OnionrCommunicatorTimers(self, onlinepeers.get_online_peers, 60, max_threads=1, my_args=[self])
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OnionrCommunicatorTimers(self, self.runCheck, 2, max_threads=1)
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# Timers to periodically lookup new blocks and download them
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lookup_blocks_timer = OnionrCommunicatorTimers(self, lookupblocks.lookup_blocks_from_communicator, config.get('timers.lookupBlocks', 25), my_args=[self], requires_peer=True, max_threads=1)
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# The block download timer is accessed by the block lookup function to trigger faster download starts
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self.download_blocks_timer = OnionrCommunicatorTimers(self, self.getBlocks, config.get('timers.getBlocks', 10), requires_peer=True, max_threads=5)
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# Timer to reset the longest offline peer so contact can be attempted again
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OnionrCommunicatorTimers(self, onlinepeers.clear_offline_peer, 58, my_args=[self])
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# Timer to cleanup old blocks
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blockCleanupTimer = OnionrCommunicatorTimers(self, housekeeping.clean_old_blocks, 20, my_args=[self])
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# Timer to discover new peers
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OnionrCommunicatorTimers(self, lookupadders.lookup_new_peer_transports_with_communicator, 60, requires_peer=True, my_args=[self], max_threads=2)
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# Timer for adjusting which peers we actively communicate to at any given time, to avoid over-using peers
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OnionrCommunicatorTimers(self, cooldownpeer.cooldown_peer, 30, my_args=[self], requires_peer=True)
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# Timer to read the upload queue and upload the entries to peers
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OnionrCommunicatorTimers(self, uploadblocks.upload_blocks_from_communicator, 5, my_args=[self], requires_peer=True, max_threads=1)
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# Timer to process the daemon command queue
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OnionrCommunicatorTimers(self, daemonqueuehandler.handle_daemon_commands, 6, my_args=[self], max_threads=3)
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# Setup direct connections
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if config.get('general.socket_servers', False):
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self.services = onionrservices.OnionrServices()
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self.active_services = []
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self.service_greenlets = []
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OnionrCommunicatorTimers(self, servicecreator.service_creator, 5, max_threads=50, my_args=[self])
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else:
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self.services = None
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# {peer_pubkey: ephemeral_address}, the address to reach them
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self.direct_connection_clients = {}
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# This timer creates deniable blocks, in an attempt to further obfuscate block insertion metadata
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if config.get('general.insert_deniable_blocks', True):
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deniableBlockTimer = OnionrCommunicatorTimers(self, deniableinserts.insert_deniable_block, 180, my_args=[self], requires_peer=True, max_threads=1)
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deniableBlockTimer.count = (deniableBlockTimer.frequency - 175)
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# Timer to check for connectivity, through Tor to various high-profile onion services
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netCheckTimer = OnionrCommunicatorTimers(self, netcheck.net_check, 500, my_args=[self], max_threads=1)
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# Announce the public API server transport address to other nodes if security level allows
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if config.get('general.security_level', 1) == 0 and config.get('general.announce_node', True):
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# Default to high security level incase config breaks
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announceTimer = OnionrCommunicatorTimers(self, announcenode.announce_node, 3600, my_args=[self], requires_peer=True, max_threads=1)
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announceTimer.count = (announceTimer.frequency - 120)
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else:
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logger.debug('Will not announce node.')
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# Timer to delete malfunctioning or long-dead peers
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cleanupTimer = OnionrCommunicatorTimers(self, self.peerCleanup, 300, requires_peer=True)
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# Timer to cleanup dead ephemeral forward secrecy keys
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forwardSecrecyTimer = OnionrCommunicatorTimers(self, housekeeping.clean_keys, 15, my_args=[self], max_threads=1)
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# Adjust initial timer triggers
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peerPoolTimer.count = (peerPoolTimer.frequency - 1)
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cleanupTimer.count = (cleanupTimer.frequency - 60)
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blockCleanupTimer.count = (blockCleanupTimer.frequency - 2)
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lookup_blocks_timer = (lookup_blocks_timer.frequency - 2)
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shared_state.add(self)
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if config.get('general.use_bootstrap', True):
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bootstrappeers.add_bootstrap_list_to_peer_list(self, [], db_only=True)
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# Main daemon loop, mainly for calling timers, don't do any complex operations here to avoid locking
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try:
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while not self.shutdown:
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for i in self.timers:
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if self.shutdown:
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break
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i.processTimer()
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time.sleep(self.delay)
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# Debug to print out used FDs (regular and net)
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#proc = psutil.Process()
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#print(proc.open_files(), len(psutil.net_connections()))
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except KeyboardInterrupt:
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self.shutdown = True
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pass
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logger.info('Goodbye. (Onionr is cleaning up, and will exit)', terminal=True)
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try:
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self.service_greenlets
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except AttributeError:
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pass
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else:
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# Stop onionr direct connection services
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for server in self.service_greenlets:
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server.stop()
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localcommand.local_command('shutdown') # shutdown the api
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try:
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time.sleep(0.5)
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except KeyboardInterrupt:
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pass
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def getBlocks(self):
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'''download new blocks in queue'''
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downloadblocks.download_blocks_from_communicator(self)
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def decrementThreadCount(self, threadName):
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'''Decrement amount of a thread name if more than zero, called when a function meant to be run in a thread ends'''
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try:
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if self.threadCounts[threadName] > 0:
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self.threadCounts[threadName] -= 1
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except KeyError:
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pass
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def connectNewPeer(self, peer='', useBootstrap=False):
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'''Adds a new random online peer to self.onlinePeers'''
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connectnewpeers.connect_new_peer_to_communicator(self, peer, useBootstrap)
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def peerCleanup(self):
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'''This just calls onionrpeers.cleanupPeers, which removes dead or bad peers (offline too long, too slow)'''
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onionrpeers.peer_cleanup()
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self.decrementThreadCount('peerCleanup')
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def getPeerProfileInstance(self, peer):
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'''Gets a peer profile instance from the list of profiles, by address name'''
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for i in self.peerProfiles:
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# if the peer's profile is already loaded, return that
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if i.address == peer:
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retData = i
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break
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else:
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# if the peer's profile is not loaded, return a new one. connectNewPeer also adds it to the list on connect
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retData = onionrpeers.PeerProfiles(peer)
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self.peerProfiles.append(retData)
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return retData
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def getUptime(self):
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return epoch.get_epoch() - self.startTime
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def heartbeat(self):
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'''Show a heartbeat debug message'''
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logger.debug('Heartbeat. Node running for %s.' % humanreadabletime.human_readable_time(self.getUptime()))
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self.decrementThreadCount('heartbeat')
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def runCheck(self):
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if run_file_exists(self):
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logger.debug('Status check; looks good.')
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self.decrementThreadCount('runCheck')
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def startCommunicator(shared_state):
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OnionrCommunicatorDaemon(shared_state)
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def run_file_exists(daemon):
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if os.path.isfile(filepaths.run_check_file):
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os.remove(filepaths.run_check_file)
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return True
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return False |