* do not save blocks if disk allocation reached
* improved some commenting * bug fixesmaster
Kevin Froman
parent
53577a4c10
commit
dd5cb99155
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@ -39,8 +39,12 @@ def importBlockFromData(content, coreInst):
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if coreInst._utils.validateMetadata(metadata, metas[2]): # check if metadata is valid
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if coreInst._crypto.verifyPow(content): # check if POW is enough/correct
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logger.info('Block passed proof, saving.')
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blockHash = coreInst.setData(content)
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coreInst.addToBlockDB(blockHash, dataSaved=True)
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coreInst._utils.processBlockMetadata(blockHash) # caches block metadata values to block database
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retData = True
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try:
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blockHash = coreInst.setData(content)
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except onionrexceptions.DiskAllocationReached:
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pass
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else:
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coreInst.addToBlockDB(blockHash, dataSaved=True)
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coreInst._utils.processBlockMetadata(blockHash) # caches block metadata values to block database
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retData = True
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return retData
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@ -117,14 +117,14 @@ class OnionrCommunicatorDaemon:
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pass
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logger.info('Goodbye.')
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self._core._utils.localCommand('shutdown')
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self._core._utils.localCommand('shutdown') # shutdown the api
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time.sleep(0.5)
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def lookupKeys(self):
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'''Lookup new keys'''
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logger.debug('Looking up new keys...')
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tryAmount = 1
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for i in range(tryAmount):
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for i in range(tryAmount): # amount of times to ask peers for new keys
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# Download new key list from random online peers
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peer = self.pickOnlinePeer()
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newKeys = self.peerAction(peer, action='kex')
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@ -151,6 +151,10 @@ class OnionrCommunicatorDaemon:
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existingBlocks = self._core.getBlockList()
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triedPeers = [] # list of peers we've tried this time around
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for i in range(tryAmount):
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# check if disk allocation is used
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if self._core._utils.storageCounter.isFull():
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logger.warn('Not looking up new blocks due to maximum amount of allowed disk space used')
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break
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peer = self.pickOnlinePeer() # select random online peer
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# if we've already tried all the online peers this time around, stop
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if peer in triedPeers:
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@ -165,7 +169,7 @@ class OnionrCommunicatorDaemon:
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if newDBHash != self._core.getAddressInfo(peer, 'DBHash'):
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self._core.setAddressInfo(peer, 'DBHash', newDBHash)
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try:
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newBlocks = self.peerAction(peer, 'getBlockHashes')
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newBlocks = self.peerAction(peer, 'getBlockHashes') # get list of new block hashes
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except Exception as error:
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logger.warn("could not get new blocks with " + peer, error=error)
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newBlocks = False
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@ -177,7 +181,7 @@ class OnionrCommunicatorDaemon:
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if not i in existingBlocks:
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# if block does not exist on disk and is not already in block queue
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if i not in self.blockQueue and not self._core._blacklist.inBlacklist(i):
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self.blockQueue.append(i)
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self.blockQueue.append(i) # add blocks to download queue
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self.decrementThreadCount('lookupBlocks')
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return
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@ -185,7 +189,9 @@ class OnionrCommunicatorDaemon:
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'''download new blocks in queue'''
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for blockHash in self.blockQueue:
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if self.shutdown:
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# Exit loop if shutting down
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break
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# Do not download blocks being downloaded or that are already saved (edge cases)
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if blockHash in self.currentDownloading:
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logger.debug('ALREADY DOWNLOADING ' + blockHash)
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continue
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@ -193,7 +199,7 @@ class OnionrCommunicatorDaemon:
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logger.debug('%s is already saved' % (blockHash,))
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self.blockQueue.remove(blockHash)
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continue
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self.currentDownloading.append(blockHash)
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self.currentDownloading.append(blockHash) # So we can avoid concurrent downloading in other threads of same block
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logger.info("Attempting to download %s..." % blockHash)
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peerUsed = self.pickOnlinePeer()
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content = self.peerAction(peerUsed, 'getData', data=blockHash) # block content from random peer (includes metadata)
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@ -216,9 +222,13 @@ class OnionrCommunicatorDaemon:
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if self._core._utils.validateMetadata(metadata, metas[2]): # check if metadata is valid, and verify nonce
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if self._core._crypto.verifyPow(content): # check if POW is enough/correct
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logger.info('Block passed proof, saving.')
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self._core.setData(content)
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self._core.addToBlockDB(blockHash, dataSaved=True)
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self._core._utils.processBlockMetadata(blockHash) # caches block metadata values to block database
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try:
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self._core.setData(content)
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except onionrexceptions.DiskAllocationReached:
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logger.error("Reached disk allocation allowance, cannot save additional blocks.")
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else:
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self._core.addToBlockDB(blockHash, dataSaved=True)
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self._core._utils.processBlockMetadata(blockHash) # caches block metadata values to block database
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else:
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logger.warn('POW failed for block ' + blockHash)
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else:
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@ -50,6 +50,7 @@ class Core:
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self.dbCreate = dbcreator.DBCreator(self)
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self.usageFile = 'data/disk-usage.txt'
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self.config = config
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if not os.path.exists('data/'):
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os.mkdir('data/')
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@ -256,6 +257,8 @@ class Core:
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Set the data assciated with a hash
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'''
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data = data
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dataSize = sys.getsizeof(data)
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if not type(data) is bytes:
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data = data.encode()
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@ -268,15 +271,17 @@ class Core:
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pass # TODO: properly check if block is already saved elsewhere
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#raise Exception("Data is already set for " + dataHash)
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else:
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blockFile = open(blockFileName, 'wb')
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blockFile.write(data)
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blockFile.close()
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conn = sqlite3.connect(self.blockDB)
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c = conn.cursor()
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c.execute("UPDATE hashes SET dataSaved=1 WHERE hash = '" + dataHash + "';")
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conn.commit()
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conn.close()
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if self._utils.storageCounter.addBytes(dataSize) != False:
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blockFile = open(blockFileName, 'wb')
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blockFile.write(data)
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blockFile.close()
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conn = sqlite3.connect(self.blockDB)
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c = conn.cursor()
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c.execute("UPDATE hashes SET dataSaved=1 WHERE hash = '" + dataHash + "';")
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conn.commit()
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conn.close()
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else:
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raise onionrexceptions.DiskAllocationReached
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return dataHash
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@ -58,3 +58,8 @@ class MissingPort(Exception):
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class InvalidAddress(Exception):
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pass
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# file exceptions
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class DiskAllocationReached:
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pass
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@ -23,7 +23,7 @@ import nacl.signing, nacl.encoding
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from onionrblockapi import Block
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import onionrexceptions
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from defusedxml import minidom
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import pgpwords
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import pgpwords, storagecounter
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if sys.version_info < (3, 6):
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try:
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import sha3
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@ -40,9 +40,9 @@ class OnionrUtils:
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self._core = coreInstance
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self.timingToken = ''
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self.avoidDupe = [] # list used to prevent duplicate requests per peer for certain actions
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self.peerProcessing = {} # dict of current peer actions: peer, actionList
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self.storageCounter = storagecounter.StorageCounter(self._core)
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config.reload()
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return
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@ -647,7 +647,6 @@ class OnionrUtils:
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if self.doGetRequest(url) != False:
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retData = True
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break
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except FileNotFoundError:
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pass
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return retData
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