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added dynamic proof of work

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Kevin Froman 2018-12-24 00:12:46 -06:00
parent 8c79cd9583
commit b45bb94375
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GPG Key ID: 0D414D0FE405B63B
9 changed files with 104 additions and 29 deletions
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2
onionr/communicator2.py
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@ -102,7 +102,7 @@ class OnionrCommunicatorDaemon:
OnionrCommunicatorTimers(self, self.daemonTools.cooldownPeer, 30, requiresPeer=True)
OnionrCommunicatorTimers(self, self.uploadBlock, 10, requiresPeer=True, maxThreads=1)
OnionrCommunicatorTimers(self, self.daemonCommands, 6, maxThreads=1)
OnionrCommunicatorTimers(self, self.detectAPICrash, 5, maxThreads=1)
OnionrCommunicatorTimers(self, self.detectAPICrash, 30, maxThreads=1)
deniableBlockTimer = OnionrCommunicatorTimers(self, self.daemonTools.insertDeniableBlock, 180, requiresPeer=True, maxThreads=1)
netCheckTimer = OnionrCommunicatorTimers(self, self.daemonTools.netCheck, 600)

24
onionr/core.py
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@ -680,7 +680,10 @@ class Core:
Inserts a block into the network
encryptType must be specified to encrypt a block
'''
allocationReachedMessage = 'Cannot insert block, disk allocation reached.'
if self._utils.storageCounter.isFull():
logger.error(allocationReachedMessage)
return False
retData = False
# check nonce
dataNonce = self._utils.bytesToStr(self._crypto.sha3Hash(data))
@ -774,13 +777,18 @@ class Core:
proof = onionrproofs.POW(metadata, data)
payload = proof.waitForResult()
if payload != False:
retData = self.setData(payload)
# Tell the api server through localCommand to wait for the daemon to upload this block to make stastical analysis more difficult
self._utils.localCommand('waitforshare/' + retData)
self.addToBlockDB(retData, selfInsert=True, dataSaved=True)
#self.setBlockType(retData, meta['type'])
self._utils.processBlockMetadata(retData)
self.daemonQueueAdd('uploadBlock', retData)
try:
retData = self.setData(payload)
except onionrexceptions.DiskAllocationReached:
logger.error(allocationReachedMessage)
retData = False
else:
# Tell the api server through localCommand to wait for the daemon to upload this block to make stastical analysis more difficult
self._utils.localCommand('waitforshare/' + retData)
self.addToBlockDB(retData, selfInsert=True, dataSaved=True)
#self.setBlockType(retData, meta['type'])
self._utils.processBlockMetadata(retData)
self.daemonQueueAdd('uploadBlock', retData)
if retData != False:
events.event('insertBlock', onionr = None, threaded = False)

1
onionr/onionr.py
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@ -719,7 +719,6 @@ class Onionr:
'''
Starts the Onionr communication daemon
'''
communicatorDaemon = './communicator2.py'
# remove runcheck if it exists

4
onionr/onionrblockapi.py
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@ -245,8 +245,8 @@ class Block:
blockFile.write(self.getRaw().encode())
else:
self.hash = self.getCore().insertBlock(self.getContent(), header = self.getType(), sign = sign, meta = self.getMetadata(), expire = self.getExpire())
self.update()
if self.hash != False:
self.update()
return self.getHash()
else:

3
onionr/onionrcrypto.py
View File

@ -269,7 +269,8 @@ class OnionrCrypto:
except AttributeError:
pass
difficulty = math.floor(dataLen / 1000000)
difficulty = onionrproofs.getDifficultyForNewBlock(blockContent, ourBlock=False)
if difficulty < int(config.get('general.minimum_block_pow')):
difficulty = int(config.get('general.minimum_block_pow'))
mainHash = '0000000000000000000000000000000000000000000000000000000000000000'#nacl.hash.blake2b(nacl.utils.random()).decode()

72
onionr/onionrproofs.py
View File

@ -19,7 +19,55 @@
'''
import nacl.encoding, nacl.hash, nacl.utils, time, math, threading, binascii, logger, sys, base64, json
import core, config
import core, onionrutils, config
import onionrblockapi
def getDifficultyModifier(coreOrUtilsInst=None):
'''Accepts a core or utils instance returns
the difficulty modifier for block storage based
on a variety of factors, currently only disk use.
'''
classInst = coreOrUtilsInst
retData = 0
if isinstance(classInst, core.Core):
useFunc = classInst._utils.storageCounter.getPercent
elif isinstance(classInst, onionrutils.OnionrUtils):
useFunc = classInst.storageCounter.getPercent
else:
useFunc = core.Core()._utils.storageCounter.getPercent
percentUse = useFunc()
if percentUse >= 0.50:
retData += 1
elif percentUse >= 0.75:
retData += 2
elif percentUse >= 0.95:
retData += 3
return retData
def getDifficultyForNewBlock(data, ourBlock=True):
'''
Get difficulty for block. Accepts size in integer, Block instance, or str/bytes full block contents
'''
retData = 0
dataSize = 0
if isinstance(data, onionrblockapi.Block):
dataSize = len(data.getRaw().encode('utf-8'))
elif isinstance(data, str):
dataSize = len(data.encode('utf-8'))
elif isinstance(data, int):
dataSize = data
else:
raise ValueError('not Block, str, or int')
if ourBlock:
minDifficulty = config.get('general.minimum_send_pow')
else:
minDifficulty = config.get('general.minimum_block_pow')
retData = max(minDifficulty, math.floor(dataSize / 1000000)) + getDifficultyModifier()
return retData
def getHashDifficulty(h):
'''
@ -55,6 +103,7 @@ class DataPOW:
self.difficulty = 0
self.data = data
self.threadCount = threadCount
self.rounds = 0
config.reload()
if forceDifficulty == 0:
@ -96,6 +145,7 @@ class DataPOW:
while self.hashing:
rand = nacl.utils.random()
token = nacl.hash.blake2b(rand + self.data).decode()
self.rounds += 1
#print(token)
if self.puzzle == token[0:self.difficulty]:
self.hashing = False
@ -106,6 +156,7 @@ class DataPOW:
endTime = math.floor(time.time())
if self.reporting:
logger.debug('Found token after %s seconds: %s' % (endTime - startTime, token), timestamp=True)
logger.debug('Round count: %s' % (self.rounds,))
self.result = (token, rand)
def shutdown(self):
@ -146,17 +197,27 @@ class DataPOW:
return result
class POW:
def __init__(self, metadata, data, threadCount = 5):
def __init__(self, metadata, data, threadCount = 5, forceDifficulty=0, coreInst=None):
self.foundHash = False
self.difficulty = 0
self.data = data
self.metadata = metadata
self.threadCount = threadCount
try:
assert isinstance(coreInst, core.Core)
except AssertionError:
myCore = core.Core()
else:
myCore = coreInst
dataLen = len(data) + len(json.dumps(metadata))
self.difficulty = math.floor(dataLen / 1000000)
if self.difficulty <= 2:
self.difficulty = int(config.get('general.minimum_block_pow'))
if forceDifficulty > 0:
self.difficulty = forceDifficulty
else:
# Calculate difficulty. Dumb for now, may use good algorithm in the future.
self.difficulty = getDifficultyForNewBlock(dataLen)
try:
self.data = self.data.encode()
@ -168,7 +229,6 @@ class POW:
self.mainHash = '0' * 64
self.puzzle = self.mainHash[0:min(self.difficulty, len(self.mainHash))]
myCore = core.Core()
for i in range(max(1, threadCount)):
t = threading.Thread(name = 'thread%s' % i, target = self.pow, args = (True,myCore))
t.start()

7
onionr/onionrutils.py
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@ -155,18 +155,21 @@ class OnionrUtils:
'''
Send a command to the local http API server, securely. Intended for local clients, DO NOT USE for remote peers.
'''
config.reload()
self.getTimeBypassToken()
# TODO: URL encode parameters, just as an extra measure. May not be needed, but should be added regardless.
hostname = ''
maxWait = 5
waited = 0
while hostname == '':
try:
with open(self._core.privateApiHostFile, 'r') as host:
hostname = host.read()
except FileNotFoundError:
print('wat')
time.sleep(1)
waited += 1
if waited == maxWait:
return False
if data != '':
data = '&data=' + urllib.parse.quote_plus(data)
payload = 'http://%s:%s/%s%s' % (hostname, config.get('client.client.port'), command, data)

11
onionr/static-data/default_config.json
View File

@ -1,14 +1,13 @@
{
"general" : {
"dev_mode" : true,
"display_header" : true,
"minimum_block_pow": 5,
"minimum_send_pow": 5,
"display_header" : false,
"minimum_block_pow": 4,
"minimum_send_pow": 4,
"socket_servers": false,
"security_level": 0,
"max_block_age": 2678400,
"public_key": "",
"use_new_api_server": false
"public_key": ""
},
"www" : {
@ -70,7 +69,7 @@
},
"allocations" : {
"disk" : 10000000000,
"disk" : 2000,
"net_total" : 1000000000,
"blockCache" : 5000000,
"blockCacheTotal" : 50000000

5
onionr/storagecounter.py
View File

@ -44,6 +44,11 @@ class StorageCounter:
pass
return retData
def getPercent(self):
'''Return percent (decimal/float) of disk space we're using'''
amount = self.getAmount()
return round(amount / self._core.config.get('allocations.disk'), 2)
def addBytes(self, amount):
'''Record that we are now using more disk space, unless doing so would exceed configured max'''
newAmount = amount + self.getAmount()