def test_count(self):
_test_setup()
counter = storagecounter.StorageCounter()
start_value = counter.get_amount()
b_hash = onionrblocks.insert("test")
self.assertGreater(counter.get_amount(), start_value)
onionrstorage.removeblock.remove_block(b_hash)
self.assertEqual(counter.get_amount(), start_value)
def getDifficultyModifier():
'''returns the difficulty modifier for block storage based
on a variety of factors, currently only disk use.
'''
percentUse = storagecounter.StorageCounter().get_percent()
difficultyIncrease = math.floor(
4 * percentUse) # difficulty increase is a step function
return difficultyIncrease
def remove_block(block):
"""Remove a block from this node.
(does not automatically blacklist).
**You may want blacklist.addToDB(blockHash)
"""
if stringvalidators.validate_hash(block):
conn = sqlite3.connect(dbfiles.block_meta_db, timeout=30)
c = conn.cursor()
t = (block,)
c.execute('Delete from hashes where hash=?;', t)
conn.commit()
conn.close()
dataSize = sys.getsizeof(onionrstorage.getData(block))
storagecounter.StorageCounter().remove_bytes(dataSize)
else:
raise onionrexceptions.InvalidHexHash
def set_data(data) -> str:
'''
Set the data assciated with a hash
'''
storage_counter = storagecounter.StorageCounter()
data = data
dataSize = sys.getsizeof(data)
nonce_hash = crypto.hashers.sha3_hash(
bytesconverter.str_to_bytes(
blockmetadata.fromdata.get_block_metadata_from_data(data)[2]))
nonce_hash = bytesconverter.bytes_to_str(nonce_hash)
if not type(data) is bytes:
data = data.encode()
dataHash = crypto.hashers.sha3_hash(data)
if type(dataHash) is bytes:
dataHash = dataHash.decode()
blockFileName = filepaths.block_data_location + dataHash + '.dat'
try:
onionrstorage.getData(dataHash)
except onionrexceptions.NoDataAvailable:
if storage_counter.add_bytes(dataSize) != False:
onionrstorage.store(data, blockHash=dataHash)
conn = sqlite3.connect(dbfiles.block_meta_db, timeout=30)
c = conn.cursor()
c.execute("UPDATE hashes SET dataSaved=1 WHERE hash = ?;",
(dataHash, ))
conn.commit()
conn.close()
with open(filepaths.data_nonce_file, 'a') as nonceFile:
nonceFile.write(nonce_hash + '\n')
else:
raise onionrexceptions.DiskAllocationReached
else:
raise onionrexceptions.DataExists("Data is already set for " +
dataHash)
return dataHash
"""
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
storage_counter = storagecounter.StorageCounter()
def download_blocks_from_communicator(shared_state: "TooMany"):
"""Use communicator instance to download blocks in the comms's queue"""
blacklist = onionrblacklist.OnionrBlackList()
kv: "DeadSimpleKV" = shared_state.get_by_string("DeadSimpleKV")
LOG_SKIP_COUNT = 50 # for how many iterations we skip logging the counter
count: int = 0
metadata_validation_result: bool = False
# Iterate the block queue in the communicator
for blockHash in list(kv.get('blockQueue')):
count += 1
try:
blockPeers = list(kv.get('blockQueue')[blockHash])
def __init__(self, shared_state, developmentMode=None):
if developmentMode is None:
developmentMode = config.get('general.dev_mode', False)
# configure logger and stuff
self.config = config
self.storage_counter = storagecounter.StorageCounter()
self.isOnline = True # Assume we're connected to the internet
self.shared_state = shared_state # TooManyObjects module
# list of timer instances
self.timers = []
# initialize core with Tor socks port being 3rd argument
self.proxyPort = shared_state.get(NetController).socksPort
# Upload information, list of blocks to upload
self.blocksToUpload = []
self.upload_session_manager = self.shared_state.get(uploadblocks.sessionmanager.BlockUploadSessionManager)
self.shared_state.share_object()
# loop time.sleep delay in seconds
self.delay = 1
# lists of connected peers and peers we know we can't reach currently
self.onlinePeers = []
self.offlinePeers = []
self.cooldownPeer = {}
self.connectTimes = {}
# list of peer's profiles (onionrpeers.PeerProfile instances)
self.peerProfiles = []
# Peers merged to us. Don't add to db until we know they're reachable
self.newPeers = []
self.announceProgress = {}
self.announceCache = {}
self.generating_blocks = []
# amount of threads running by name, used to prevent too many
self.threadCounts = {}
# set true when shutdown command received
self.shutdown = False
# list of new blocks to download, added to when new block lists are fetched from peers
self.blockQueue = {}
# list of blocks currently downloading, avoid s
self.currentDownloading = []
# timestamp when the last online node was seen
self.lastNodeSeen = None
# Dict of time stamps for peer's block list lookup times, to avoid downloading full lists all the time
self.dbTimestamps = {}
# Clear the daemon queue for any dead messages
if os.path.exists(dbfiles.daemon_queue_db):
daemonqueue.clear_daemon_queue()
# Loads in and starts the enabled plugins
plugins.reload()
# time app started running for info/statistics purposes
self.startTime = epoch.get_epoch()
uploadqueue.UploadQueue(self) # extends our upload list and saves our list when Onionr exits
if developmentMode:
OnionrCommunicatorTimers(self, self.heartbeat, 30)
# Set timers, function reference, seconds
# requires_peer True means the timer function won't fire if we have no connected peers
peerPoolTimer = OnionrCommunicatorTimers(self, onlinepeers.get_online_peers, 60, max_threads=1, my_args=[self])
OnionrCommunicatorTimers(self, self.runCheck, 2, max_threads=1)
# Timers to periodically lookup new blocks and download them
lookup_blocks_timer = OnionrCommunicatorTimers(self, lookupblocks.lookup_blocks_from_communicator, config.get('timers.lookupBlocks', 25), my_args=[self], requires_peer=True, max_threads=1)
# The block download timer is accessed by the block lookup function to trigger faster download starts
self.download_blocks_timer = OnionrCommunicatorTimers(self, self.getBlocks, config.get('timers.getBlocks', 10), requires_peer=True, max_threads=5)
# Timer to reset the longest offline peer so contact can be attempted again
OnionrCommunicatorTimers(self, onlinepeers.clear_offline_peer, 58, my_args=[self])
# Timer to cleanup old blocks
blockCleanupTimer = OnionrCommunicatorTimers(self, housekeeping.clean_old_blocks, 20, my_args=[self])
# Timer to discover new peers
OnionrCommunicatorTimers(self, lookupadders.lookup_new_peer_transports_with_communicator, 60, requires_peer=True, my_args=[self], max_threads=2)
# Timer for adjusting which peers we actively communicate to at any given time, to avoid over-using peers
OnionrCommunicatorTimers(self, cooldownpeer.cooldown_peer, 30, my_args=[self], requires_peer=True)
# Timer to read the upload queue and upload the entries to peers
OnionrCommunicatorTimers(self, uploadblocks.upload_blocks_from_communicator, 5, my_args=[self], requires_peer=True, max_threads=1)
# Timer to process the daemon command queue
OnionrCommunicatorTimers(self, daemonqueuehandler.handle_daemon_commands, 6, my_args=[self], max_threads=3)
# Setup direct connections
if config.get('general.socket_servers', False):
self.services = onionrservices.OnionrServices()
self.active_services = []
self.service_greenlets = []
OnionrCommunicatorTimers(self, servicecreator.service_creator, 5, max_threads=50, my_args=[self])
else:
self.services = None
# {peer_pubkey: ephemeral_address}, the address to reach them
self.direct_connection_clients = {}
# This timer creates deniable blocks, in an attempt to further obfuscate block insertion metadata
if config.get('general.insert_deniable_blocks', True):
deniableBlockTimer = OnionrCommunicatorTimers(self, deniableinserts.insert_deniable_block, 180, my_args=[self], requires_peer=True, max_threads=1)
deniableBlockTimer.count = (deniableBlockTimer.frequency - 175)
# Timer to check for connectivity, through Tor to various high-profile onion services
netCheckTimer = OnionrCommunicatorTimers(self, netcheck.net_check, 500, my_args=[self], max_threads=1)
# Announce the public API server transport address to other nodes if security level allows
if config.get('general.security_level', 1) == 0 and config.get('general.announce_node', True):
# Default to high security level incase config breaks
announceTimer = OnionrCommunicatorTimers(self, announcenode.announce_node, 3600, my_args=[self], requires_peer=True, max_threads=1)
announceTimer.count = (announceTimer.frequency - 120)
else:
logger.debug('Will not announce node.')
# Timer to delete malfunctioning or long-dead peers
cleanupTimer = OnionrCommunicatorTimers(self, self.peerCleanup, 300, requires_peer=True)
# Timer to cleanup dead ephemeral forward secrecy keys
forwardSecrecyTimer = OnionrCommunicatorTimers(self, housekeeping.clean_keys, 15, my_args=[self], max_threads=1)
# Adjust initial timer triggers
peerPoolTimer.count = (peerPoolTimer.frequency - 1)
cleanupTimer.count = (cleanupTimer.frequency - 60)
blockCleanupTimer.count = (blockCleanupTimer.frequency - 2)
lookup_blocks_timer = (lookup_blocks_timer.frequency - 2)
shared_state.add(self)
if config.get('general.use_bootstrap', True):
bootstrappeers.add_bootstrap_list_to_peer_list(self, [], db_only=True)
if not config.get('onboarding.done', True):
logger.info('First run detected. Run openhome to get setup.', terminal=True)
while not config.get('onboarding.done', True):
time.sleep(5)
# Main daemon loop, mainly for calling timers, don't do any complex operations here to avoid locking
try:
while not self.shutdown:
for i in self.timers:
if self.shutdown:
break
i.processTimer()
time.sleep(self.delay)
# Debug to print out used FDs (regular and net)
#proc = psutil.Process()
#print(proc.open_files(), len(psutil.net_connections()))
except KeyboardInterrupt:
self.shutdown = True
pass
logger.info('Goodbye. (Onionr is cleaning up, and will exit)', terminal=True)
try:
self.service_greenlets
except AttributeError:
pass
else:
# Stop onionr direct connection services
for server in self.service_greenlets:
server.stop()
localcommand.local_command('shutdown') # shutdown the api
try:
time.sleep(0.5)
except KeyboardInterrupt:
pass
def download_blocks_from_communicator(comm_inst: "OnionrCommunicatorDaemon"):
"""Use communicator instance to download blocks in the comms's queue"""
blacklist = onionrblacklist.OnionrBlackList()
storage_counter = storagecounter.StorageCounter()
LOG_SKIP_COUNT = 50 # for how many iterations we skip logging the counter
count: int = 0
metadata_validation_result: bool = False
# Iterate the block queue in the communicator
for blockHash in list(comm_inst.blockQueue):
count += 1
triedQueuePeers = [] # List of peers we've tried for a block
try:
blockPeers = list(comm_inst.blockQueue[blockHash])
except KeyError:
blockPeers = []
removeFromQueue = True
if not shoulddownload.should_download(comm_inst, blockHash):
continue
if comm_inst.shutdown or not comm_inst.isOnline or storage_counter.is_full():
# Exit loop if shutting down or offline, or disk allocation reached
break
# Do not download blocks being downloaded
if blockHash in comm_inst.currentDownloading:
continue
if len(comm_inst.onlinePeers) == 0:
break
comm_inst.currentDownloading.append(blockHash) # So we can avoid concurrent downloading in other threads of same block
if len(blockPeers) == 0:
try:
peerUsed = onlinepeers.pick_online_peer(comm_inst)
except onionrexceptions.OnlinePeerNeeded:
continue
else:
blockPeers = onionrcrypto.cryptoutils.random_shuffle(blockPeers)
peerUsed = blockPeers.pop(0)
if not comm_inst.shutdown and peerUsed.strip() != '':
logger.info("Attempting to download %s from %s..." % (blockHash[:12], peerUsed))
content = peeraction.peer_action(comm_inst, peerUsed, 'getdata/' + blockHash, max_resp_size=3000000) # block content from random peer (includes metadata)
if content is not False and len(content) > 0:
try:
content = content.encode()
except AttributeError:
pass
realHash = onionrcrypto.hashers.sha3_hash(content)
try:
realHash = realHash.decode() # bytes on some versions for some reason
except AttributeError:
pass
if realHash == blockHash:
#content = content.decode() # decode here because sha3Hash needs bytes above
metas = blockmetadata.get_block_metadata_from_data(content) # returns tuple(metadata, meta), meta is also in metadata
metadata = metas[0]
try:
metadata_validation_result = \
validatemetadata.validate_metadata(metadata, metas[2])
except onionrexceptions.DataExists:
metadata_validation_result = False
if metadata_validation_result: # check if metadata is valid, and verify nonce
if onionrcrypto.cryptoutils.verify_POW(content): # check if POW is enough/correct
logger.info('Attempting to save block %s...' % blockHash[:12])
try:
onionrstorage.set_data(content)
except onionrexceptions.DataExists:
logger.warn('Data is already set for %s ' % (blockHash,))
except onionrexceptions.DiskAllocationReached:
logger.error('Reached disk allocation allowance, cannot save block %s.' % (blockHash,))
removeFromQueue = False
else:
blockmetadb.add_to_block_DB(blockHash, dataSaved=True) # add block to meta db
blockmetadata.process_block_metadata(blockHash) # caches block metadata values to block database
spawn(
local_command,
f'/daemon-event/upload_event',
post=True,
is_json=True,
post_data={'block': blockHash}
)
else:
logger.warn('POW failed for block %s.' % (blockHash,))
else:
if blacklist.inBlacklist(realHash):
logger.warn('Block %s is blacklisted.' % (realHash,))
else:
logger.warn('Metadata for block %s is invalid.' % (blockHash,))
blacklist.addToDB(blockHash)
else:
# if block didn't meet expected hash
tempHash = onionrcrypto.hashers.sha3_hash(content) # lazy hack, TODO use var
try:
tempHash = tempHash.decode()
except AttributeError:
pass
# Punish peer for sharing invalid block (not always malicious, but is bad regardless)
onionrpeers.PeerProfiles(peerUsed).addScore(-50)
if tempHash != 'ed55e34cb828232d6c14da0479709bfa10a0923dca2b380496e6b2ed4f7a0253':
# Dumb hack for 404 response from peer. Don't log it if 404 since its likely not malicious or a critical error.
logger.warn(
'Block hash validation failed for ' +
blockHash + ' got ' + tempHash)
else:
removeFromQueue = False # Don't remove from queue if 404
if removeFromQueue:
try:
del comm_inst.blockQueue[blockHash] # remove from block queue both if success or false
if count == LOG_SKIP_COUNT:
logger.info('%s blocks remaining in queue' %
[len(comm_inst.blockQueue)], terminal=True)
count = 0
except KeyError:
pass
comm_inst.currentDownloading.remove(blockHash)
comm_inst.decrementThreadCount('getBlocks')