Separated code in to many individual modules #253
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@ -52,6 +52,7 @@ import proofofwork
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from class_singleListener import *
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from class_singleListener import *
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from class_sqlThread import *
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from class_sqlThread import *
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from class_singleCleaner import *
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from class_singleCleaner import *
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from class_singleWorker import *
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from class_addressGenerator import *
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from class_addressGenerator import *
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# Helper Functions
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# Helper Functions
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@ -2473,854 +2474,6 @@ def assembleVersionMessage(remoteHost, remotePort, myStreamNumber):
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datatosend = datatosend + hashlib.sha512(payload).digest()[0:4]
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datatosend = datatosend + hashlib.sha512(payload).digest()[0:4]
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return datatosend + payload
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return datatosend + payload
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# This thread, of which there is only one, does the heavy lifting:
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# calculating POWs.
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class singleWorker(threading.Thread):
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def __init__(self):
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# QThread.__init__(self, parent)
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threading.Thread.__init__(self)
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def run(self):
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put(
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'''SELECT toripe FROM sent WHERE ((status='awaitingpubkey' OR status='doingpubkeypow') AND folder='sent')''')
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shared.sqlSubmitQueue.put('')
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlLock.release()
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for row in queryreturn:
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toripe, = row
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neededPubkeys[toripe] = 0
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# Initialize the ackdataForWhichImWatching data structure using data
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# from the sql database.
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put(
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'''SELECT ackdata FROM sent where (status='msgsent' OR status='doingmsgpow')''')
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shared.sqlSubmitQueue.put('')
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlLock.release()
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for row in queryreturn:
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ackdata, = row
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print 'Watching for ackdata', ackdata.encode('hex')
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ackdataForWhichImWatching[ackdata] = 0
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put(
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'''SELECT DISTINCT toaddress FROM sent WHERE (status='doingpubkeypow' AND folder='sent')''')
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shared.sqlSubmitQueue.put('')
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlLock.release()
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for row in queryreturn:
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toaddress, = row
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self.requestPubKey(toaddress)
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time.sleep(
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10) # give some time for the GUI to start before we start on existing POW tasks.
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self.sendMsg()
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# just in case there are any pending tasks for msg
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# messages that have yet to be sent.
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self.sendBroadcast()
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# just in case there are any tasks for Broadcasts
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# that have yet to be sent.
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while True:
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command, data = shared.workerQueue.get()
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if command == 'sendmessage':
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self.sendMsg()
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elif command == 'sendbroadcast':
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self.sendBroadcast()
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elif command == 'doPOWForMyV2Pubkey':
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self.doPOWForMyV2Pubkey(data)
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elif command == 'doPOWForMyV3Pubkey':
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self.doPOWForMyV3Pubkey(data)
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"""elif command == 'newpubkey':
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toAddressVersion,toStreamNumber,toRipe = data
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if toRipe in neededPubkeys:
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print 'We have been awaiting the arrival of this pubkey.'
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del neededPubkeys[toRipe]
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t = (toRipe,)
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put('''UPDATE sent SET status='doingmsgpow' WHERE toripe=? AND status='awaitingpubkey' and folder='sent' ''')
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shared.sqlSubmitQueue.put(t)
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shared.sqlReturnQueue.get()
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shared.sqlSubmitQueue.put('commit')
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shared.sqlLock.release()
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self.sendMsg()
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else:
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shared.printLock.acquire()
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print 'We don\'t need this pub key. We didn\'t ask for it. Pubkey hash:', toRipe.encode('hex')
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shared.printLock.release()"""
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else:
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shared.printLock.acquire()
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sys.stderr.write(
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'Probable programming error: The command sent to the workerThread is weird. It is: %s\n' % command)
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shared.printLock.release()
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shared.workerQueue.task_done()
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def doPOWForMyV2Pubkey(self, hash): # This function also broadcasts out the pubkey message once it is done with the POW
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# Look up my stream number based on my address hash
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"""configSections = shared.config.sections()
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for addressInKeysFile in configSections:
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if addressInKeysFile <> 'bitmessagesettings':
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status,addressVersionNumber,streamNumber,hashFromThisParticularAddress = decodeAddress(addressInKeysFile)
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if hash == hashFromThisParticularAddress:
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myAddress = addressInKeysFile
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break"""
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myAddress = shared.myAddressesByHash[hash]
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status, addressVersionNumber, streamNumber, hash = decodeAddress(
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myAddress)
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embeddedTime = int(time.time() + random.randrange(
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-300, 300)) # the current time plus or minus five minutes
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payload = pack('>I', (embeddedTime))
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payload += encodeVarint(addressVersionNumber) # Address version number
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payload += encodeVarint(streamNumber)
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payload += '\x00\x00\x00\x01' # bitfield of features supported by me (see the wiki).
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try:
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privSigningKeyBase58 = shared.config.get(
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myAddress, 'privsigningkey')
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privEncryptionKeyBase58 = shared.config.get(
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myAddress, 'privencryptionkey')
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except Exception as err:
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shared.printLock.acquire()
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sys.stderr.write(
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'Error within doPOWForMyV2Pubkey. Could not read the keys from the keys.dat file for a requested address. %s\n' % err)
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shared.printLock.release()
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return
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privSigningKeyHex = shared.decodeWalletImportFormat(
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privSigningKeyBase58).encode('hex')
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privEncryptionKeyHex = shared.decodeWalletImportFormat(
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privEncryptionKeyBase58).encode('hex')
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pubSigningKey = highlevelcrypto.privToPub(
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privSigningKeyHex).decode('hex')
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pubEncryptionKey = highlevelcrypto.privToPub(
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privEncryptionKeyHex).decode('hex')
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payload += pubSigningKey[1:]
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payload += pubEncryptionKey[1:]
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# Do the POW for this pubkey message
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target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
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8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
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print '(For pubkey message) Doing proof of work...'
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initialHash = hashlib.sha512(payload).digest()
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trialValue, nonce = proofofwork.run(target, initialHash)
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print '(For pubkey message) Found proof of work', trialValue, 'Nonce:', nonce
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payload = pack('>Q', nonce) + payload
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"""t = (hash,payload,embeddedTime,'no')
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put('''INSERT INTO pubkeys VALUES (?,?,?,?)''')
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shared.sqlSubmitQueue.put(t)
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlSubmitQueue.put('commit')
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shared.sqlLock.release()"""
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inventoryHash = calculateInventoryHash(payload)
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objectType = 'pubkey'
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shared.inventory[inventoryHash] = (
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objectType, streamNumber, payload, embeddedTime)
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shared.printLock.acquire()
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print 'broadcasting inv with hash:', inventoryHash.encode('hex')
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shared.printLock.release()
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shared.broadcastToSendDataQueues((
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streamNumber, 'sendinv', inventoryHash))
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shared.UISignalQueue.put(('updateStatusBar', ''))
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shared.config.set(
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myAddress, 'lastpubkeysendtime', str(int(time.time())))
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with open(shared.appdata + 'keys.dat', 'wb') as configfile:
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shared.config.write(configfile)
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def doPOWForMyV3Pubkey(self, hash): # This function also broadcasts out the pubkey message once it is done with the POW
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myAddress = shared.myAddressesByHash[hash]
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status, addressVersionNumber, streamNumber, hash = decodeAddress(
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myAddress)
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embeddedTime = int(time.time() + random.randrange(
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-300, 300)) # the current time plus or minus five minutes
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payload = pack('>I', (embeddedTime))
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payload += encodeVarint(addressVersionNumber) # Address version number
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payload += encodeVarint(streamNumber)
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payload += '\x00\x00\x00\x01' # bitfield of features supported by me (see the wiki).
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try:
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privSigningKeyBase58 = shared.config.get(
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myAddress, 'privsigningkey')
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privEncryptionKeyBase58 = shared.config.get(
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myAddress, 'privencryptionkey')
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except Exception as err:
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shared.printLock.acquire()
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sys.stderr.write(
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'Error within doPOWForMyV3Pubkey. Could not read the keys from the keys.dat file for a requested address. %s\n' % err)
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shared.printLock.release()
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return
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privSigningKeyHex = shared.decodeWalletImportFormat(
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privSigningKeyBase58).encode('hex')
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privEncryptionKeyHex = shared.decodeWalletImportFormat(
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privEncryptionKeyBase58).encode('hex')
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pubSigningKey = highlevelcrypto.privToPub(
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privSigningKeyHex).decode('hex')
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pubEncryptionKey = highlevelcrypto.privToPub(
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privEncryptionKeyHex).decode('hex')
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payload += pubSigningKey[1:]
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payload += pubEncryptionKey[1:]
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payload += encodeVarint(shared.config.getint(
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myAddress, 'noncetrialsperbyte'))
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payload += encodeVarint(shared.config.getint(
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myAddress, 'payloadlengthextrabytes'))
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signature = highlevelcrypto.sign(payload, privSigningKeyHex)
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payload += encodeVarint(len(signature))
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payload += signature
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# Do the POW for this pubkey message
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target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
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8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
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print '(For pubkey message) Doing proof of work...'
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initialHash = hashlib.sha512(payload).digest()
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trialValue, nonce = proofofwork.run(target, initialHash)
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print '(For pubkey message) Found proof of work', trialValue, 'Nonce:', nonce
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payload = pack('>Q', nonce) + payload
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"""t = (hash,payload,embeddedTime,'no')
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shared.sqlLock.acquire()
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shared.sqlSubmitQueue.put('''INSERT INTO pubkeys VALUES (?,?,?,?)''')
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shared.sqlSubmitQueue.put(t)
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlSubmitQueue.put('commit')
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shared.sqlLock.release()"""
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inventoryHash = calculateInventoryHash(payload)
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objectType = 'pubkey'
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shared.inventory[inventoryHash] = (
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objectType, streamNumber, payload, embeddedTime)
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shared.printLock.acquire()
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print 'broadcasting inv with hash:', inventoryHash.encode('hex')
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shared.printLock.release()
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shared.broadcastToSendDataQueues((
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streamNumber, 'sendinv', inventoryHash))
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shared.UISignalQueue.put(('updateStatusBar', ''))
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shared.config.set(
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myAddress, 'lastpubkeysendtime', str(int(time.time())))
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with open(shared.appdata + 'keys.dat', 'wb') as configfile:
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shared.config.write(configfile)
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def sendBroadcast(self):
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shared.sqlLock.acquire()
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t = ('broadcastqueued',)
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shared.sqlSubmitQueue.put(
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'''SELECT fromaddress, subject, message, ackdata FROM sent WHERE status=? and folder='sent' ''')
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shared.sqlSubmitQueue.put(t)
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlLock.release()
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for row in queryreturn:
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fromaddress, subject, body, ackdata = row
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status, addressVersionNumber, streamNumber, ripe = decodeAddress(
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fromaddress)
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if addressVersionNumber == 2 and int(time.time()) < encryptedBroadcastSwitchoverTime:
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# We need to convert our private keys to public keys in order
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# to include them.
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try:
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privSigningKeyBase58 = shared.config.get(
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fromaddress, 'privsigningkey')
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privEncryptionKeyBase58 = shared.config.get(
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fromaddress, 'privencryptionkey')
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except:
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shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
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ackdata, translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
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continue
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privSigningKeyHex = shared.decodeWalletImportFormat(
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privSigningKeyBase58).encode('hex')
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privEncryptionKeyHex = shared.decodeWalletImportFormat(
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privEncryptionKeyBase58).encode('hex')
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pubSigningKey = highlevelcrypto.privToPub(privSigningKeyHex).decode(
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'hex') # At this time these pubkeys are 65 bytes long because they include the encoding byte which we won't be sending in the broadcast message.
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pubEncryptionKey = highlevelcrypto.privToPub(
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privEncryptionKeyHex).decode('hex')
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payload = pack('>Q', (int(time.time()) + random.randrange(
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-300, 300))) # the current time plus or minus five minutes
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payload += encodeVarint(1) # broadcast version
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payload += encodeVarint(addressVersionNumber)
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payload += encodeVarint(streamNumber)
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payload += '\x00\x00\x00\x01' # behavior bitfield
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payload += pubSigningKey[1:]
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payload += pubEncryptionKey[1:]
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payload += ripe
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payload += '\x02' # message encoding type
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payload += encodeVarint(len(
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'Subject:' + subject + '\n' + 'Body:' + body)) # Type 2 is simple UTF-8 message encoding.
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payload += 'Subject:' + subject + '\n' + 'Body:' + body
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signature = highlevelcrypto.sign(payload, privSigningKeyHex)
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payload += encodeVarint(len(signature))
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payload += signature
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target = 2 ** 64 / ((len(
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payload) + shared.networkDefaultPayloadLengthExtraBytes + 8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
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print '(For broadcast message) Doing proof of work...'
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shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
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ackdata, translateText("MainWindow", "Doing work necessary to send broadcast..."))))
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initialHash = hashlib.sha512(payload).digest()
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trialValue, nonce = proofofwork.run(target, initialHash)
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print '(For broadcast message) Found proof of work', trialValue, 'Nonce:', nonce
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payload = pack('>Q', nonce) + payload
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inventoryHash = calculateInventoryHash(payload)
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objectType = 'broadcast'
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shared.inventory[inventoryHash] = (
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objectType, streamNumber, payload, int(time.time()))
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print 'Broadcasting inv for my broadcast (within sendBroadcast function):', inventoryHash.encode('hex')
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shared.broadcastToSendDataQueues((
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streamNumber, 'sendinv', inventoryHash))
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shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, translateText("MainWindow", "Broadcast sent on %1").arg(unicode(
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strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
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# Update the status of the message in the 'sent' table to have
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# a 'broadcastsent' status
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shared.sqlLock.acquire()
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t = ('broadcastsent', int(
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time.time()), fromaddress, subject, body, 'broadcastqueued')
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shared.sqlSubmitQueue.put(
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'UPDATE sent SET status=?, lastactiontime=? WHERE fromaddress=? AND subject=? AND message=? AND status=?')
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shared.sqlSubmitQueue.put(t)
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queryreturn = shared.sqlReturnQueue.get()
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shared.sqlSubmitQueue.put('commit')
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shared.sqlLock.release()
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elif addressVersionNumber == 3 or int(time.time()) > encryptedBroadcastSwitchoverTime:
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# We need to convert our private keys to public keys in order
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# to include them.
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try:
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privSigningKeyBase58 = shared.config.get(
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fromaddress, 'privsigningkey')
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privEncryptionKeyBase58 = shared.config.get(
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fromaddress, 'privencryptionkey')
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except:
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
|
||||||
continue
|
|
||||||
|
|
||||||
privSigningKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privSigningKeyBase58).encode('hex')
|
|
||||||
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privEncryptionKeyBase58).encode('hex')
|
|
||||||
|
|
||||||
pubSigningKey = highlevelcrypto.privToPub(privSigningKeyHex).decode(
|
|
||||||
'hex') # At this time these pubkeys are 65 bytes long because they include the encoding byte which we won't be sending in the broadcast message.
|
|
||||||
pubEncryptionKey = highlevelcrypto.privToPub(
|
|
||||||
privEncryptionKeyHex).decode('hex')
|
|
||||||
|
|
||||||
payload = pack('>Q', (int(time.time()) + random.randrange(
|
|
||||||
-300, 300))) # the current time plus or minus five minutes
|
|
||||||
payload += encodeVarint(2) # broadcast version
|
|
||||||
payload += encodeVarint(streamNumber)
|
|
||||||
|
|
||||||
dataToEncrypt = encodeVarint(2) # broadcast version
|
|
||||||
dataToEncrypt += encodeVarint(addressVersionNumber)
|
|
||||||
dataToEncrypt += encodeVarint(streamNumber)
|
|
||||||
dataToEncrypt += '\x00\x00\x00\x01' # behavior bitfield
|
|
||||||
dataToEncrypt += pubSigningKey[1:]
|
|
||||||
dataToEncrypt += pubEncryptionKey[1:]
|
|
||||||
if addressVersionNumber >= 3:
|
|
||||||
dataToEncrypt += encodeVarint(shared.config.getint(fromaddress,'noncetrialsperbyte'))
|
|
||||||
dataToEncrypt += encodeVarint(shared.config.getint(fromaddress,'payloadlengthextrabytes'))
|
|
||||||
dataToEncrypt += '\x02' # message encoding type
|
|
||||||
dataToEncrypt += encodeVarint(len('Subject:' + subject + '\n' + 'Body:' + body)) #Type 2 is simple UTF-8 message encoding per the documentation on the wiki.
|
|
||||||
dataToEncrypt += 'Subject:' + subject + '\n' + 'Body:' + body
|
|
||||||
signature = highlevelcrypto.sign(
|
|
||||||
dataToEncrypt, privSigningKeyHex)
|
|
||||||
dataToEncrypt += encodeVarint(len(signature))
|
|
||||||
dataToEncrypt += signature
|
|
||||||
|
|
||||||
# Encrypt the broadcast with the information contained in the broadcaster's address. Anyone who knows the address can generate
|
|
||||||
# the private encryption key to decrypt the broadcast. This provides virtually no privacy; its purpose is to keep questionable
|
|
||||||
# and illegal content from flowing through the Internet connections and being stored on the disk of 3rd parties.
|
|
||||||
privEncryptionKey = hashlib.sha512(encodeVarint(
|
|
||||||
addressVersionNumber) + encodeVarint(streamNumber) + ripe).digest()[:32]
|
|
||||||
pubEncryptionKey = pointMult(privEncryptionKey)
|
|
||||||
payload += highlevelcrypto.encrypt(
|
|
||||||
dataToEncrypt, pubEncryptionKey.encode('hex'))
|
|
||||||
|
|
||||||
target = 2 ** 64 / ((len(
|
|
||||||
payload) + shared.networkDefaultPayloadLengthExtraBytes + 8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
|
||||||
print '(For broadcast message) Doing proof of work...'
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Doing work necessary to send broadcast..."))))
|
|
||||||
initialHash = hashlib.sha512(payload).digest()
|
|
||||||
trialValue, nonce = proofofwork.run(target, initialHash)
|
|
||||||
print '(For broadcast message) Found proof of work', trialValue, 'Nonce:', nonce
|
|
||||||
|
|
||||||
payload = pack('>Q', nonce) + payload
|
|
||||||
|
|
||||||
inventoryHash = calculateInventoryHash(payload)
|
|
||||||
objectType = 'broadcast'
|
|
||||||
shared.inventory[inventoryHash] = (
|
|
||||||
objectType, streamNumber, payload, int(time.time()))
|
|
||||||
print 'sending inv (within sendBroadcast function)'
|
|
||||||
shared.broadcastToSendDataQueues((
|
|
||||||
streamNumber, 'sendinv', inventoryHash))
|
|
||||||
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, translateText("MainWindow", "Broadcast sent on %1").arg(unicode(
|
|
||||||
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
|
||||||
|
|
||||||
# Update the status of the message in the 'sent' table to have
|
|
||||||
# a 'broadcastsent' status
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
t = ('broadcastsent', int(
|
|
||||||
time.time()), fromaddress, subject, body, 'broadcastqueued')
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'UPDATE sent SET status=?, lastactiontime=? WHERE fromaddress=? AND subject=? AND message=? AND status=?')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
else:
|
|
||||||
shared.printLock.acquire()
|
|
||||||
sys.stderr.write(
|
|
||||||
'Error: In the singleWorker thread, the sendBroadcast function doesn\'t understand the address version.\n')
|
|
||||||
shared.printLock.release()
|
|
||||||
|
|
||||||
def sendMsg(self):
|
|
||||||
# Check to see if there are any messages queued to be sent
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''SELECT DISTINCT toaddress FROM sent WHERE (status='msgqueued' AND folder='sent')''')
|
|
||||||
shared.sqlSubmitQueue.put('')
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlLock.release()
|
|
||||||
for row in queryreturn: # For each address to which we need to send a message, check to see if we have its pubkey already.
|
|
||||||
toaddress, = row
|
|
||||||
toripe = decodeAddress(toaddress)[3]
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''SELECT hash FROM pubkeys WHERE hash=? ''')
|
|
||||||
shared.sqlSubmitQueue.put((toripe,))
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlLock.release()
|
|
||||||
if queryreturn != []: # If we have the needed pubkey, set the status to doingmsgpow (we'll do it further down)
|
|
||||||
t = (toaddress,)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='doingmsgpow' WHERE toaddress=? AND status='msgqueued' ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
else: # We don't have the needed pubkey. Set the status to 'awaitingpubkey' and request it if we haven't already
|
|
||||||
if toripe in neededPubkeys:
|
|
||||||
# We already sent a request for the pubkey
|
|
||||||
t = (toaddress,)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='awaitingpubkey' WHERE toaddress=? AND status='msgqueued' ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
|
||||||
toripe, translateText("MainWindow",'Encryption key was requested earlier.'))))
|
|
||||||
else:
|
|
||||||
# We have not yet sent a request for the pubkey
|
|
||||||
t = (toaddress,)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='doingpubkeypow' WHERE toaddress=? AND status='msgqueued' ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
|
||||||
toripe, translateText("MainWindow",'Sending a request for the recipient\'s encryption key.'))))
|
|
||||||
self.requestPubKey(toaddress)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
# Get all messages that are ready to be sent, and also all messages
|
|
||||||
# which we have sent in the last 28 days which were previously marked
|
|
||||||
# as 'toodifficult'. If the user as raised the maximum acceptable
|
|
||||||
# difficulty then those messages may now be sendable.
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''SELECT toaddress, toripe, fromaddress, subject, message, ackdata, status FROM sent WHERE (status='doingmsgpow' or status='forcepow' or (status='toodifficult' and lastactiontime>?)) and folder='sent' ''')
|
|
||||||
shared.sqlSubmitQueue.put((int(time.time()) - 2419200,))
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlLock.release()
|
|
||||||
for row in queryreturn: # For each message we need to send..
|
|
||||||
toaddress, toripe, fromaddress, subject, message, ackdata, status = row
|
|
||||||
# There is a remote possibility that we may no longer have the
|
|
||||||
# recipient's pubkey. Let us make sure we still have it or else the
|
|
||||||
# sendMsg function will appear to freeze. This can happen if the
|
|
||||||
# user sends a message but doesn't let the POW function finish,
|
|
||||||
# then leaves their client off for a long time which could cause
|
|
||||||
# the needed pubkey to expire and be deleted.
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''SELECT hash FROM pubkeys WHERE hash=? ''')
|
|
||||||
shared.sqlSubmitQueue.put((toripe,))
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlLock.release()
|
|
||||||
if queryreturn == [] and toripe not in neededPubkeys:
|
|
||||||
# We no longer have the needed pubkey and we haven't requested
|
|
||||||
# it.
|
|
||||||
shared.printLock.acquire()
|
|
||||||
sys.stderr.write(
|
|
||||||
'For some reason, the status of a message in our outbox is \'doingmsgpow\' even though we lack the pubkey. Here is the RIPE hash of the needed pubkey: %s\n' % toripe.encode('hex'))
|
|
||||||
shared.printLock.release()
|
|
||||||
t = (toaddress,)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='msgqueued' WHERE toaddress=? AND status='doingmsgpow' ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
|
||||||
toripe, translateText("MainWindow",'Sending a request for the recipient\'s encryption key.'))))
|
|
||||||
self.requestPubKey(toaddress)
|
|
||||||
continue
|
|
||||||
ackdataForWhichImWatching[ackdata] = 0
|
|
||||||
toStatus, toAddressVersionNumber, toStreamNumber, toHash = decodeAddress(
|
|
||||||
toaddress)
|
|
||||||
fromStatus, fromAddressVersionNumber, fromStreamNumber, fromHash = decodeAddress(
|
|
||||||
fromaddress)
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Looking up the receiver\'s public key"))))
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print 'Found a message in our database that needs to be sent with this pubkey.'
|
|
||||||
print 'First 150 characters of message:', repr(message[:150])
|
|
||||||
shared.printLock.release()
|
|
||||||
|
|
||||||
# mark the pubkey as 'usedpersonally' so that we don't ever delete
|
|
||||||
# it.
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
t = (toripe,)
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE pubkeys SET usedpersonally='yes' WHERE hash=?''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
# Let us fetch the recipient's public key out of our database. If
|
|
||||||
# the required proof of work difficulty is too hard then we'll
|
|
||||||
# abort.
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'SELECT transmitdata FROM pubkeys WHERE hash=?')
|
|
||||||
shared.sqlSubmitQueue.put((toripe,))
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlLock.release()
|
|
||||||
if queryreturn == []:
|
|
||||||
shared.printLock.acquire()
|
|
||||||
sys.stderr.write(
|
|
||||||
'(within sendMsg) The needed pubkey was not found. This should never happen. Aborting send.\n')
|
|
||||||
shared.printLock.release()
|
|
||||||
return
|
|
||||||
for row in queryreturn:
|
|
||||||
pubkeyPayload, = row
|
|
||||||
|
|
||||||
# The pubkey message is stored the way we originally received it
|
|
||||||
# which means that we need to read beyond things like the nonce and
|
|
||||||
# time to get to the actual public keys.
|
|
||||||
readPosition = 8 # to bypass the nonce
|
|
||||||
pubkeyEmbeddedTime, = unpack(
|
|
||||||
'>I', pubkeyPayload[readPosition:readPosition + 4])
|
|
||||||
# This section is used for the transition from 32 bit time to 64
|
|
||||||
# bit time in the protocol.
|
|
||||||
if pubkeyEmbeddedTime == 0:
|
|
||||||
pubkeyEmbeddedTime, = unpack(
|
|
||||||
'>Q', pubkeyPayload[readPosition:readPosition + 8])
|
|
||||||
readPosition += 8
|
|
||||||
else:
|
|
||||||
readPosition += 4
|
|
||||||
readPosition += 1 # to bypass the address version whose length is definitely 1
|
|
||||||
streamNumber, streamNumberLength = decodeVarint(
|
|
||||||
pubkeyPayload[readPosition:readPosition + 10])
|
|
||||||
readPosition += streamNumberLength
|
|
||||||
behaviorBitfield = pubkeyPayload[readPosition:readPosition + 4]
|
|
||||||
readPosition += 4 # to bypass the bitfield of behaviors
|
|
||||||
# pubSigningKeyBase256 =
|
|
||||||
# pubkeyPayload[readPosition:readPosition+64] #We don't use this
|
|
||||||
# key for anything here.
|
|
||||||
readPosition += 64
|
|
||||||
pubEncryptionKeyBase256 = pubkeyPayload[
|
|
||||||
readPosition:readPosition + 64]
|
|
||||||
readPosition += 64
|
|
||||||
if toAddressVersionNumber == 2:
|
|
||||||
requiredAverageProofOfWorkNonceTrialsPerByte = shared.networkDefaultProofOfWorkNonceTrialsPerByte
|
|
||||||
requiredPayloadLengthExtraBytes = shared.networkDefaultPayloadLengthExtraBytes
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Doing work necessary to send message.\nThere is no required difficulty for version 2 addresses like this."))))
|
|
||||||
elif toAddressVersionNumber == 3:
|
|
||||||
requiredAverageProofOfWorkNonceTrialsPerByte, varintLength = decodeVarint(
|
|
||||||
pubkeyPayload[readPosition:readPosition + 10])
|
|
||||||
readPosition += varintLength
|
|
||||||
requiredPayloadLengthExtraBytes, varintLength = decodeVarint(
|
|
||||||
pubkeyPayload[readPosition:readPosition + 10])
|
|
||||||
readPosition += varintLength
|
|
||||||
if requiredAverageProofOfWorkNonceTrialsPerByte < shared.networkDefaultProofOfWorkNonceTrialsPerByte: # We still have to meet a minimum POW difficulty regardless of what they say is allowed in order to get our message to propagate through the network.
|
|
||||||
requiredAverageProofOfWorkNonceTrialsPerByte = shared.networkDefaultProofOfWorkNonceTrialsPerByte
|
|
||||||
if requiredPayloadLengthExtraBytes < shared.networkDefaultPayloadLengthExtraBytes:
|
|
||||||
requiredPayloadLengthExtraBytes = shared.networkDefaultPayloadLengthExtraBytes
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, translateText("MainWindow", "Doing work necessary to send message.\nReceiver\'s required difficulty: %1 and %2").arg(str(float(
|
|
||||||
requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes)))))
|
|
||||||
if status != 'forcepow':
|
|
||||||
if (requiredAverageProofOfWorkNonceTrialsPerByte > shared.config.getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') and shared.config.getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') != 0) or (requiredPayloadLengthExtraBytes > shared.config.getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') and shared.config.getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') != 0):
|
|
||||||
# The demanded difficulty is more than we are willing
|
|
||||||
# to do.
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
t = (ackdata,)
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='toodifficult' WHERE ackdata=? ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, translateText("MainWindow", "Problem: The work demanded by the recipient (%1 and %2) is more difficult than you are willing to do.").arg(str(float(requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(
|
|
||||||
requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes)).arg(unicode(strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
|
||||||
continue
|
|
||||||
|
|
||||||
embeddedTime = pack('>Q', (int(time.time()) + random.randrange(
|
|
||||||
-300, 300))) # the current time plus or minus five minutes. We will use this time both for our message and for the ackdata packed within our message.
|
|
||||||
if fromAddressVersionNumber == 2:
|
|
||||||
payload = '\x01' # Message version.
|
|
||||||
payload += encodeVarint(fromAddressVersionNumber)
|
|
||||||
payload += encodeVarint(fromStreamNumber)
|
|
||||||
payload += '\x00\x00\x00\x01' # Bitfield of features and behaviors that can be expected from me. (See https://bitmessage.org/wiki/Protocol_specification#Pubkey_bitfield_features )
|
|
||||||
|
|
||||||
# We need to convert our private keys to public keys in order
|
|
||||||
# to include them.
|
|
||||||
try:
|
|
||||||
privSigningKeyBase58 = shared.config.get(
|
|
||||||
fromaddress, 'privsigningkey')
|
|
||||||
privEncryptionKeyBase58 = shared.config.get(
|
|
||||||
fromaddress, 'privencryptionkey')
|
|
||||||
except:
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
|
||||||
continue
|
|
||||||
|
|
||||||
privSigningKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privSigningKeyBase58).encode('hex')
|
|
||||||
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privEncryptionKeyBase58).encode('hex')
|
|
||||||
|
|
||||||
pubSigningKey = highlevelcrypto.privToPub(
|
|
||||||
privSigningKeyHex).decode('hex')
|
|
||||||
pubEncryptionKey = highlevelcrypto.privToPub(
|
|
||||||
privEncryptionKeyHex).decode('hex')
|
|
||||||
|
|
||||||
payload += pubSigningKey[
|
|
||||||
1:] # The \x04 on the beginning of the public keys are not sent. This way there is only one acceptable way to encode and send a public key.
|
|
||||||
payload += pubEncryptionKey[1:]
|
|
||||||
|
|
||||||
payload += toHash # This hash will be checked by the receiver of the message to verify that toHash belongs to them. This prevents a Surreptitious Forwarding Attack.
|
|
||||||
payload += '\x02' # Type 2 is simple UTF-8 message encoding as specified on the Protocol Specification on the Bitmessage Wiki.
|
|
||||||
messageToTransmit = 'Subject:' + \
|
|
||||||
subject + '\n' + 'Body:' + message
|
|
||||||
payload += encodeVarint(len(messageToTransmit))
|
|
||||||
payload += messageToTransmit
|
|
||||||
fullAckPayload = self.generateFullAckMessage(
|
|
||||||
ackdata, toStreamNumber, embeddedTime) # The fullAckPayload is a normal msg protocol message with the proof of work already completed that the receiver of this message can easily send out.
|
|
||||||
payload += encodeVarint(len(fullAckPayload))
|
|
||||||
payload += fullAckPayload
|
|
||||||
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
|
||||||
payload += encodeVarint(len(signature))
|
|
||||||
payload += signature
|
|
||||||
|
|
||||||
if fromAddressVersionNumber == 3:
|
|
||||||
payload = '\x01' # Message version.
|
|
||||||
payload += encodeVarint(fromAddressVersionNumber)
|
|
||||||
payload += encodeVarint(fromStreamNumber)
|
|
||||||
payload += '\x00\x00\x00\x01' # Bitfield of features and behaviors that can be expected from me. (See https://bitmessage.org/wiki/Protocol_specification#Pubkey_bitfield_features )
|
|
||||||
|
|
||||||
# We need to convert our private keys to public keys in order
|
|
||||||
# to include them.
|
|
||||||
try:
|
|
||||||
privSigningKeyBase58 = shared.config.get(
|
|
||||||
fromaddress, 'privsigningkey')
|
|
||||||
privEncryptionKeyBase58 = shared.config.get(
|
|
||||||
fromaddress, 'privencryptionkey')
|
|
||||||
except:
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
|
||||||
ackdata, translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
|
||||||
continue
|
|
||||||
|
|
||||||
privSigningKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privSigningKeyBase58).encode('hex')
|
|
||||||
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
|
||||||
privEncryptionKeyBase58).encode('hex')
|
|
||||||
|
|
||||||
pubSigningKey = highlevelcrypto.privToPub(
|
|
||||||
privSigningKeyHex).decode('hex')
|
|
||||||
pubEncryptionKey = highlevelcrypto.privToPub(
|
|
||||||
privEncryptionKeyHex).decode('hex')
|
|
||||||
|
|
||||||
payload += pubSigningKey[
|
|
||||||
1:] # The \x04 on the beginning of the public keys are not sent. This way there is only one acceptable way to encode and send a public key.
|
|
||||||
payload += pubEncryptionKey[1:]
|
|
||||||
# If the receiver of our message is in our address book,
|
|
||||||
# subscriptions list, or whitelist then we will allow them to
|
|
||||||
# do the network-minimum proof of work. Let us check to see if
|
|
||||||
# the receiver is in any of those lists.
|
|
||||||
if shared.isAddressInMyAddressBookSubscriptionsListOrWhitelist(toaddress):
|
|
||||||
payload += encodeVarint(
|
|
||||||
shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
|
||||||
payload += encodeVarint(
|
|
||||||
shared.networkDefaultPayloadLengthExtraBytes)
|
|
||||||
else:
|
|
||||||
payload += encodeVarint(shared.config.getint(
|
|
||||||
fromaddress, 'noncetrialsperbyte'))
|
|
||||||
payload += encodeVarint(shared.config.getint(
|
|
||||||
fromaddress, 'payloadlengthextrabytes'))
|
|
||||||
|
|
||||||
payload += toHash # This hash will be checked by the receiver of the message to verify that toHash belongs to them. This prevents a Surreptitious Forwarding Attack.
|
|
||||||
payload += '\x02' # Type 2 is simple UTF-8 message encoding as specified on the Protocol Specification on the Bitmessage Wiki.
|
|
||||||
messageToTransmit = 'Subject:' + \
|
|
||||||
subject + '\n' + 'Body:' + message
|
|
||||||
payload += encodeVarint(len(messageToTransmit))
|
|
||||||
payload += messageToTransmit
|
|
||||||
fullAckPayload = self.generateFullAckMessage(
|
|
||||||
ackdata, toStreamNumber, embeddedTime) # The fullAckPayload is a normal msg protocol message with the proof of work already completed that the receiver of this message can easily send out.
|
|
||||||
payload += encodeVarint(len(fullAckPayload))
|
|
||||||
payload += fullAckPayload
|
|
||||||
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
|
||||||
payload += encodeVarint(len(signature))
|
|
||||||
payload += signature
|
|
||||||
|
|
||||||
|
|
||||||
# We have assembled the data that will be encrypted.
|
|
||||||
try:
|
|
||||||
encrypted = highlevelcrypto.encrypt(payload,"04"+pubEncryptionKeyBase256.encode('hex'))
|
|
||||||
except:
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
t = (ackdata,)
|
|
||||||
shared.sqlSubmitQueue.put('''UPDATE sent SET status='badkey' WHERE ackdata=?''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata',(ackdata,translateText("MainWindow",'Problem: The recipient\'s encryption key is no good. Could not encrypt message. %1').arg(unicode(strftime(shared.config.get('bitmessagesettings', 'timeformat'),localtime(int(time.time()))),'utf-8')))))
|
|
||||||
continue
|
|
||||||
encryptedPayload = embeddedTime + encodeVarint(toStreamNumber) + encrypted
|
|
||||||
target = 2**64 / ((len(encryptedPayload)+requiredPayloadLengthExtraBytes+8) * requiredAverageProofOfWorkNonceTrialsPerByte)
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print '(For msg message) Doing proof of work. Total required difficulty:', float(requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte, 'Required small message difficulty:', float(requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes
|
|
||||||
shared.printLock.release()
|
|
||||||
powStartTime = time.time()
|
|
||||||
initialHash = hashlib.sha512(encryptedPayload).digest()
|
|
||||||
trialValue, nonce = proofofwork.run(target, initialHash)
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print '(For msg message) Found proof of work', trialValue, 'Nonce:', nonce
|
|
||||||
try:
|
|
||||||
print 'POW took', int(time.time() - powStartTime), 'seconds.', nonce / (time.time() - powStartTime), 'nonce trials per second.'
|
|
||||||
except:
|
|
||||||
pass
|
|
||||||
shared.printLock.release()
|
|
||||||
encryptedPayload = pack('>Q', nonce) + encryptedPayload
|
|
||||||
|
|
||||||
inventoryHash = calculateInventoryHash(encryptedPayload)
|
|
||||||
objectType = 'msg'
|
|
||||||
shared.inventory[inventoryHash] = (
|
|
||||||
objectType, toStreamNumber, encryptedPayload, int(time.time()))
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, translateText("MainWindow", "Message sent. Waiting on acknowledgement. Sent on %1").arg(unicode(
|
|
||||||
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
|
||||||
print 'Broadcasting inv for my msg(within sendmsg function):', inventoryHash.encode('hex')
|
|
||||||
shared.broadcastToSendDataQueues((
|
|
||||||
streamNumber, 'sendinv', inventoryHash))
|
|
||||||
|
|
||||||
# Update the status of the message in the 'sent' table to have a
|
|
||||||
# 'msgsent' status
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
t = (ackdata,)
|
|
||||||
shared.sqlSubmitQueue.put('''UPDATE sent SET status='msgsent' WHERE ackdata=?''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
queryreturn = shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
|
|
||||||
def requestPubKey(self, toAddress):
|
|
||||||
toStatus, addressVersionNumber, streamNumber, ripe = decodeAddress(
|
|
||||||
toAddress)
|
|
||||||
if toStatus != 'success':
|
|
||||||
shared.printLock.acquire()
|
|
||||||
sys.stderr.write('Very abnormal error occurred in requestPubKey. toAddress is: ' + repr(
|
|
||||||
toAddress) + '. Please report this error to Atheros.')
|
|
||||||
shared.printLock.release()
|
|
||||||
return
|
|
||||||
neededPubkeys[ripe] = 0
|
|
||||||
payload = pack('>Q', (int(time.time()) + random.randrange(
|
|
||||||
-300, 300))) # the current time plus or minus five minutes.
|
|
||||||
payload += encodeVarint(addressVersionNumber)
|
|
||||||
payload += encodeVarint(streamNumber)
|
|
||||||
payload += ripe
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print 'making request for pubkey with ripe:', ripe.encode('hex')
|
|
||||||
shared.printLock.release()
|
|
||||||
# print 'trial value', trialValue
|
|
||||||
statusbar = 'Doing the computations necessary to request the recipient\'s public key.'
|
|
||||||
shared.UISignalQueue.put(('updateStatusBar', statusbar))
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
|
||||||
ripe, translateText("MainWindow",'Doing work necessary to request encryption key.'))))
|
|
||||||
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
|
||||||
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
|
||||||
initialHash = hashlib.sha512(payload).digest()
|
|
||||||
trialValue, nonce = proofofwork.run(target, initialHash)
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print 'Found proof of work', trialValue, 'Nonce:', nonce
|
|
||||||
shared.printLock.release()
|
|
||||||
|
|
||||||
payload = pack('>Q', nonce) + payload
|
|
||||||
inventoryHash = calculateInventoryHash(payload)
|
|
||||||
objectType = 'getpubkey'
|
|
||||||
shared.inventory[inventoryHash] = (
|
|
||||||
objectType, streamNumber, payload, int(time.time()))
|
|
||||||
print 'sending inv (for the getpubkey message)'
|
|
||||||
shared.broadcastToSendDataQueues((
|
|
||||||
streamNumber, 'sendinv', inventoryHash))
|
|
||||||
|
|
||||||
t = (toAddress,)
|
|
||||||
shared.sqlLock.acquire()
|
|
||||||
shared.sqlSubmitQueue.put(
|
|
||||||
'''UPDATE sent SET status='awaitingpubkey' WHERE toaddress=? AND status='doingpubkeypow' ''')
|
|
||||||
shared.sqlSubmitQueue.put(t)
|
|
||||||
shared.sqlReturnQueue.get()
|
|
||||||
shared.sqlSubmitQueue.put('commit')
|
|
||||||
shared.sqlLock.release()
|
|
||||||
|
|
||||||
shared.UISignalQueue.put((
|
|
||||||
'updateStatusBar', translateText("MainWindow",'Broacasting the public key request. This program will auto-retry if they are offline.')))
|
|
||||||
shared.UISignalQueue.put(('updateSentItemStatusByHash', (ripe, translateText("MainWindow",'Sending public key request. Waiting for reply. Requested at %1').arg(unicode(
|
|
||||||
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
|
||||||
|
|
||||||
def generateFullAckMessage(self, ackdata, toStreamNumber, embeddedTime):
|
|
||||||
payload = embeddedTime + encodeVarint(toStreamNumber) + ackdata
|
|
||||||
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
|
||||||
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print '(For ack message) Doing proof of work...'
|
|
||||||
shared.printLock.release()
|
|
||||||
powStartTime = time.time()
|
|
||||||
initialHash = hashlib.sha512(payload).digest()
|
|
||||||
trialValue, nonce = proofofwork.run(target, initialHash)
|
|
||||||
shared.printLock.acquire()
|
|
||||||
print '(For ack message) Found proof of work', trialValue, 'Nonce:', nonce
|
|
||||||
try:
|
|
||||||
print 'POW took', int(time.time() - powStartTime), 'seconds.', nonce / (time.time() - powStartTime), 'nonce trials per second.'
|
|
||||||
except:
|
|
||||||
pass
|
|
||||||
shared.printLock.release()
|
|
||||||
payload = pack('>Q', nonce) + payload
|
|
||||||
headerData = '\xe9\xbe\xb4\xd9' # magic bits, slighly different from Bitcoin's magic bits.
|
|
||||||
headerData += 'msg\x00\x00\x00\x00\x00\x00\x00\x00\x00'
|
|
||||||
headerData += pack('>L', len(payload))
|
|
||||||
headerData += hashlib.sha512(payload).digest()[:4]
|
|
||||||
return headerData + payload
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
858
src/class_singleWorker.py
Normal file
858
src/class_singleWorker.py
Normal file
|
|
@ -0,0 +1,858 @@
|
||||||
|
import threading
|
||||||
|
import shared
|
||||||
|
import time
|
||||||
|
from time import strftime, localtime, gmtime
|
||||||
|
import random
|
||||||
|
from addresses import *
|
||||||
|
import bitmessagemain
|
||||||
|
import highlevelcrypto
|
||||||
|
import proofofwork
|
||||||
|
|
||||||
|
# This thread, of which there is only one, does the heavy lifting:
|
||||||
|
# calculating POWs.
|
||||||
|
|
||||||
|
|
||||||
|
class singleWorker(threading.Thread):
|
||||||
|
|
||||||
|
def __init__(self):
|
||||||
|
# QThread.__init__(self, parent)
|
||||||
|
threading.Thread.__init__(self)
|
||||||
|
|
||||||
|
def run(self):
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT toripe FROM sent WHERE ((status='awaitingpubkey' OR status='doingpubkeypow') AND folder='sent')''')
|
||||||
|
shared.sqlSubmitQueue.put('')
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn:
|
||||||
|
toripe, = row
|
||||||
|
neededPubkeys[toripe] = 0
|
||||||
|
|
||||||
|
# Initialize the bitmessagemain.ackdataForWhichImWatching data structure using data
|
||||||
|
# from the sql database.
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT ackdata FROM sent where (status='msgsent' OR status='doingmsgpow')''')
|
||||||
|
shared.sqlSubmitQueue.put('')
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn:
|
||||||
|
ackdata, = row
|
||||||
|
print 'Watching for ackdata', ackdata.encode('hex')
|
||||||
|
bitmessagemain.ackdataForWhichImWatching[ackdata] = 0
|
||||||
|
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT DISTINCT toaddress FROM sent WHERE (status='doingpubkeypow' AND folder='sent')''')
|
||||||
|
shared.sqlSubmitQueue.put('')
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn:
|
||||||
|
toaddress, = row
|
||||||
|
self.requestPubKey(toaddress)
|
||||||
|
|
||||||
|
time.sleep(
|
||||||
|
10) # give some time for the GUI to start before we start on existing POW tasks.
|
||||||
|
|
||||||
|
self.sendMsg()
|
||||||
|
# just in case there are any pending tasks for msg
|
||||||
|
# messages that have yet to be sent.
|
||||||
|
self.sendBroadcast()
|
||||||
|
# just in case there are any tasks for Broadcasts
|
||||||
|
# that have yet to be sent.
|
||||||
|
|
||||||
|
while True:
|
||||||
|
command, data = shared.workerQueue.get()
|
||||||
|
if command == 'sendmessage':
|
||||||
|
self.sendMsg()
|
||||||
|
elif command == 'sendbroadcast':
|
||||||
|
self.sendBroadcast()
|
||||||
|
elif command == 'doPOWForMyV2Pubkey':
|
||||||
|
self.doPOWForMyV2Pubkey(data)
|
||||||
|
elif command == 'doPOWForMyV3Pubkey':
|
||||||
|
self.doPOWForMyV3Pubkey(data)
|
||||||
|
"""elif command == 'newpubkey':
|
||||||
|
toAddressVersion,toStreamNumber,toRipe = data
|
||||||
|
if toRipe in neededPubkeys:
|
||||||
|
print 'We have been awaiting the arrival of this pubkey.'
|
||||||
|
del neededPubkeys[toRipe]
|
||||||
|
t = (toRipe,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put('''UPDATE sent SET status='doingmsgpow' WHERE toripe=? AND status='awaitingpubkey' and folder='sent' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
self.sendMsg()
|
||||||
|
else:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'We don\'t need this pub key. We didn\'t ask for it. Pubkey hash:', toRipe.encode('hex')
|
||||||
|
shared.printLock.release()"""
|
||||||
|
else:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'Probable programming error: The command sent to the workerThread is weird. It is: %s\n' % command)
|
||||||
|
shared.printLock.release()
|
||||||
|
shared.workerQueue.task_done()
|
||||||
|
|
||||||
|
def doPOWForMyV2Pubkey(self, hash): # This function also broadcasts out the pubkey message once it is done with the POW
|
||||||
|
# Look up my stream number based on my address hash
|
||||||
|
"""configSections = shared.config.sections()
|
||||||
|
for addressInKeysFile in configSections:
|
||||||
|
if addressInKeysFile <> 'bitmessagesettings':
|
||||||
|
status,addressVersionNumber,streamNumber,hashFromThisParticularAddress = decodeAddress(addressInKeysFile)
|
||||||
|
if hash == hashFromThisParticularAddress:
|
||||||
|
myAddress = addressInKeysFile
|
||||||
|
break"""
|
||||||
|
myAddress = shared.myAddressesByHash[hash]
|
||||||
|
status, addressVersionNumber, streamNumber, hash = decodeAddress(
|
||||||
|
myAddress)
|
||||||
|
embeddedTime = int(time.time() + random.randrange(
|
||||||
|
-300, 300)) # the current time plus or minus five minutes
|
||||||
|
payload = pack('>I', (embeddedTime))
|
||||||
|
payload += encodeVarint(addressVersionNumber) # Address version number
|
||||||
|
payload += encodeVarint(streamNumber)
|
||||||
|
payload += '\x00\x00\x00\x01' # bitfield of features supported by me (see the wiki).
|
||||||
|
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
myAddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
myAddress, 'privencryptionkey')
|
||||||
|
except Exception as err:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'Error within doPOWForMyV2Pubkey. Could not read the keys from the keys.dat file for a requested address. %s\n' % err)
|
||||||
|
shared.printLock.release()
|
||||||
|
return
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(
|
||||||
|
privSigningKeyHex).decode('hex')
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload += pubSigningKey[1:]
|
||||||
|
payload += pubEncryptionKey[1:]
|
||||||
|
|
||||||
|
# Do the POW for this pubkey message
|
||||||
|
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
||||||
|
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
print '(For pubkey message) Doing proof of work...'
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
print '(For pubkey message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
"""t = (hash,payload,embeddedTime,'no')
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put('''INSERT INTO pubkeys VALUES (?,?,?,?)''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()"""
|
||||||
|
|
||||||
|
inventoryHash = calculateInventoryHash(payload)
|
||||||
|
objectType = 'pubkey'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, streamNumber, payload, embeddedTime)
|
||||||
|
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'broadcasting inv with hash:', inventoryHash.encode('hex')
|
||||||
|
shared.printLock.release()
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
shared.UISignalQueue.put(('updateStatusBar', ''))
|
||||||
|
shared.config.set(
|
||||||
|
myAddress, 'lastpubkeysendtime', str(int(time.time())))
|
||||||
|
with open(shared.appdata + 'keys.dat', 'wb') as configfile:
|
||||||
|
shared.config.write(configfile)
|
||||||
|
|
||||||
|
def doPOWForMyV3Pubkey(self, hash): # This function also broadcasts out the pubkey message once it is done with the POW
|
||||||
|
myAddress = shared.myAddressesByHash[hash]
|
||||||
|
status, addressVersionNumber, streamNumber, hash = decodeAddress(
|
||||||
|
myAddress)
|
||||||
|
embeddedTime = int(time.time() + random.randrange(
|
||||||
|
-300, 300)) # the current time plus or minus five minutes
|
||||||
|
payload = pack('>I', (embeddedTime))
|
||||||
|
payload += encodeVarint(addressVersionNumber) # Address version number
|
||||||
|
payload += encodeVarint(streamNumber)
|
||||||
|
payload += '\x00\x00\x00\x01' # bitfield of features supported by me (see the wiki).
|
||||||
|
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
myAddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
myAddress, 'privencryptionkey')
|
||||||
|
except Exception as err:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'Error within doPOWForMyV3Pubkey. Could not read the keys from the keys.dat file for a requested address. %s\n' % err)
|
||||||
|
shared.printLock.release()
|
||||||
|
return
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(
|
||||||
|
privSigningKeyHex).decode('hex')
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload += pubSigningKey[1:]
|
||||||
|
payload += pubEncryptionKey[1:]
|
||||||
|
|
||||||
|
payload += encodeVarint(shared.config.getint(
|
||||||
|
myAddress, 'noncetrialsperbyte'))
|
||||||
|
payload += encodeVarint(shared.config.getint(
|
||||||
|
myAddress, 'payloadlengthextrabytes'))
|
||||||
|
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
||||||
|
payload += encodeVarint(len(signature))
|
||||||
|
payload += signature
|
||||||
|
|
||||||
|
# Do the POW for this pubkey message
|
||||||
|
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
||||||
|
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
print '(For pubkey message) Doing proof of work...'
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
print '(For pubkey message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
"""t = (hash,payload,embeddedTime,'no')
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put('''INSERT INTO pubkeys VALUES (?,?,?,?)''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()"""
|
||||||
|
|
||||||
|
inventoryHash = calculateInventoryHash(payload)
|
||||||
|
objectType = 'pubkey'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, streamNumber, payload, embeddedTime)
|
||||||
|
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'broadcasting inv with hash:', inventoryHash.encode('hex')
|
||||||
|
shared.printLock.release()
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
shared.UISignalQueue.put(('updateStatusBar', ''))
|
||||||
|
shared.config.set(
|
||||||
|
myAddress, 'lastpubkeysendtime', str(int(time.time())))
|
||||||
|
with open(shared.appdata + 'keys.dat', 'wb') as configfile:
|
||||||
|
shared.config.write(configfile)
|
||||||
|
|
||||||
|
def sendBroadcast(self):
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = ('broadcastqueued',)
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT fromaddress, subject, message, ackdata FROM sent WHERE status=? and folder='sent' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn:
|
||||||
|
fromaddress, subject, body, ackdata = row
|
||||||
|
status, addressVersionNumber, streamNumber, ripe = decodeAddress(
|
||||||
|
fromaddress)
|
||||||
|
if addressVersionNumber == 2 and int(time.time()) < encryptedBroadcastSwitchoverTime:
|
||||||
|
# We need to convert our private keys to public keys in order
|
||||||
|
# to include them.
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privencryptionkey')
|
||||||
|
except:
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
||||||
|
continue
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(privSigningKeyHex).decode(
|
||||||
|
'hex') # At this time these pubkeys are 65 bytes long because they include the encoding byte which we won't be sending in the broadcast message.
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload = pack('>Q', (int(time.time()) + random.randrange(
|
||||||
|
-300, 300))) # the current time plus or minus five minutes
|
||||||
|
payload += encodeVarint(1) # broadcast version
|
||||||
|
payload += encodeVarint(addressVersionNumber)
|
||||||
|
payload += encodeVarint(streamNumber)
|
||||||
|
payload += '\x00\x00\x00\x01' # behavior bitfield
|
||||||
|
payload += pubSigningKey[1:]
|
||||||
|
payload += pubEncryptionKey[1:]
|
||||||
|
payload += ripe
|
||||||
|
payload += '\x02' # message encoding type
|
||||||
|
payload += encodeVarint(len(
|
||||||
|
'Subject:' + subject + '\n' + 'Body:' + body)) # Type 2 is simple UTF-8 message encoding.
|
||||||
|
payload += 'Subject:' + subject + '\n' + 'Body:' + body
|
||||||
|
|
||||||
|
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
||||||
|
payload += encodeVarint(len(signature))
|
||||||
|
payload += signature
|
||||||
|
|
||||||
|
target = 2 ** 64 / ((len(
|
||||||
|
payload) + shared.networkDefaultPayloadLengthExtraBytes + 8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
print '(For broadcast message) Doing proof of work...'
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Doing work necessary to send broadcast..."))))
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
print '(For broadcast message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
|
||||||
|
inventoryHash = calculateInventoryHash(payload)
|
||||||
|
objectType = 'broadcast'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, streamNumber, payload, int(time.time()))
|
||||||
|
print 'Broadcasting inv for my broadcast (within sendBroadcast function):', inventoryHash.encode('hex')
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, bitmessagemain.translateText("MainWindow", "Broadcast sent on %1").arg(unicode(
|
||||||
|
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
||||||
|
|
||||||
|
# Update the status of the message in the 'sent' table to have
|
||||||
|
# a 'broadcastsent' status
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = ('broadcastsent', int(
|
||||||
|
time.time()), fromaddress, subject, body, 'broadcastqueued')
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'UPDATE sent SET status=?, lastactiontime=? WHERE fromaddress=? AND subject=? AND message=? AND status=?')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
elif addressVersionNumber == 3 or int(time.time()) > encryptedBroadcastSwitchoverTime:
|
||||||
|
# We need to convert our private keys to public keys in order
|
||||||
|
# to include them.
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privencryptionkey')
|
||||||
|
except:
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
||||||
|
continue
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(privSigningKeyHex).decode(
|
||||||
|
'hex') # At this time these pubkeys are 65 bytes long because they include the encoding byte which we won't be sending in the broadcast message.
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload = pack('>Q', (int(time.time()) + random.randrange(
|
||||||
|
-300, 300))) # the current time plus or minus five minutes
|
||||||
|
payload += encodeVarint(2) # broadcast version
|
||||||
|
payload += encodeVarint(streamNumber)
|
||||||
|
|
||||||
|
dataToEncrypt = encodeVarint(2) # broadcast version
|
||||||
|
dataToEncrypt += encodeVarint(addressVersionNumber)
|
||||||
|
dataToEncrypt += encodeVarint(streamNumber)
|
||||||
|
dataToEncrypt += '\x00\x00\x00\x01' # behavior bitfield
|
||||||
|
dataToEncrypt += pubSigningKey[1:]
|
||||||
|
dataToEncrypt += pubEncryptionKey[1:]
|
||||||
|
if addressVersionNumber >= 3:
|
||||||
|
dataToEncrypt += encodeVarint(shared.config.getint(fromaddress,'noncetrialsperbyte'))
|
||||||
|
dataToEncrypt += encodeVarint(shared.config.getint(fromaddress,'payloadlengthextrabytes'))
|
||||||
|
dataToEncrypt += '\x02' # message encoding type
|
||||||
|
dataToEncrypt += encodeVarint(len('Subject:' + subject + '\n' + 'Body:' + body)) #Type 2 is simple UTF-8 message encoding per the documentation on the wiki.
|
||||||
|
dataToEncrypt += 'Subject:' + subject + '\n' + 'Body:' + body
|
||||||
|
signature = highlevelcrypto.sign(
|
||||||
|
dataToEncrypt, privSigningKeyHex)
|
||||||
|
dataToEncrypt += encodeVarint(len(signature))
|
||||||
|
dataToEncrypt += signature
|
||||||
|
|
||||||
|
# Encrypt the broadcast with the information contained in the broadcaster's address. Anyone who knows the address can generate
|
||||||
|
# the private encryption key to decrypt the broadcast. This provides virtually no privacy; its purpose is to keep questionable
|
||||||
|
# and illegal content from flowing through the Internet connections and being stored on the disk of 3rd parties.
|
||||||
|
privEncryptionKey = hashlib.sha512(encodeVarint(
|
||||||
|
addressVersionNumber) + encodeVarint(streamNumber) + ripe).digest()[:32]
|
||||||
|
pubEncryptionKey = pointMult(privEncryptionKey)
|
||||||
|
payload += highlevelcrypto.encrypt(
|
||||||
|
dataToEncrypt, pubEncryptionKey.encode('hex'))
|
||||||
|
|
||||||
|
target = 2 ** 64 / ((len(
|
||||||
|
payload) + shared.networkDefaultPayloadLengthExtraBytes + 8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
print '(For broadcast message) Doing proof of work...'
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Doing work necessary to send broadcast..."))))
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
print '(For broadcast message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
|
||||||
|
inventoryHash = calculateInventoryHash(payload)
|
||||||
|
objectType = 'broadcast'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, streamNumber, payload, int(time.time()))
|
||||||
|
print 'sending inv (within sendBroadcast function)'
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, bitmessagemain.translateText("MainWindow", "Broadcast sent on %1").arg(unicode(
|
||||||
|
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
||||||
|
|
||||||
|
# Update the status of the message in the 'sent' table to have
|
||||||
|
# a 'broadcastsent' status
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = ('broadcastsent', int(
|
||||||
|
time.time()), fromaddress, subject, body, 'broadcastqueued')
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'UPDATE sent SET status=?, lastactiontime=? WHERE fromaddress=? AND subject=? AND message=? AND status=?')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
else:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'Error: In the singleWorker thread, the sendBroadcast function doesn\'t understand the address version.\n')
|
||||||
|
shared.printLock.release()
|
||||||
|
|
||||||
|
def sendMsg(self):
|
||||||
|
# Check to see if there are any messages queued to be sent
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT DISTINCT toaddress FROM sent WHERE (status='msgqueued' AND folder='sent')''')
|
||||||
|
shared.sqlSubmitQueue.put('')
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn: # For each address to which we need to send a message, check to see if we have its pubkey already.
|
||||||
|
toaddress, = row
|
||||||
|
toripe = decodeAddress(toaddress)[3]
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT hash FROM pubkeys WHERE hash=? ''')
|
||||||
|
shared.sqlSubmitQueue.put((toripe,))
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
if queryreturn != []: # If we have the needed pubkey, set the status to doingmsgpow (we'll do it further down)
|
||||||
|
t = (toaddress,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='doingmsgpow' WHERE toaddress=? AND status='msgqueued' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
else: # We don't have the needed pubkey. Set the status to 'awaitingpubkey' and request it if we haven't already
|
||||||
|
if toripe in neededPubkeys:
|
||||||
|
# We already sent a request for the pubkey
|
||||||
|
t = (toaddress,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='awaitingpubkey' WHERE toaddress=? AND status='msgqueued' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
||||||
|
toripe, bitmessagemain.translateText("MainWindow",'Encryption key was requested earlier.'))))
|
||||||
|
else:
|
||||||
|
# We have not yet sent a request for the pubkey
|
||||||
|
t = (toaddress,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='doingpubkeypow' WHERE toaddress=? AND status='msgqueued' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
||||||
|
toripe, bitmessagemain.translateText("MainWindow",'Sending a request for the recipient\'s encryption key.'))))
|
||||||
|
self.requestPubKey(toaddress)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
# Get all messages that are ready to be sent, and also all messages
|
||||||
|
# which we have sent in the last 28 days which were previously marked
|
||||||
|
# as 'toodifficult'. If the user as raised the maximum acceptable
|
||||||
|
# difficulty then those messages may now be sendable.
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT toaddress, toripe, fromaddress, subject, message, ackdata, status FROM sent WHERE (status='doingmsgpow' or status='forcepow' or (status='toodifficult' and lastactiontime>?)) and folder='sent' ''')
|
||||||
|
shared.sqlSubmitQueue.put((int(time.time()) - 2419200,))
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
for row in queryreturn: # For each message we need to send..
|
||||||
|
toaddress, toripe, fromaddress, subject, message, ackdata, status = row
|
||||||
|
# There is a remote possibility that we may no longer have the
|
||||||
|
# recipient's pubkey. Let us make sure we still have it or else the
|
||||||
|
# sendMsg function will appear to freeze. This can happen if the
|
||||||
|
# user sends a message but doesn't let the POW function finish,
|
||||||
|
# then leaves their client off for a long time which could cause
|
||||||
|
# the needed pubkey to expire and be deleted.
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''SELECT hash FROM pubkeys WHERE hash=? ''')
|
||||||
|
shared.sqlSubmitQueue.put((toripe,))
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
if queryreturn == [] and toripe not in neededPubkeys:
|
||||||
|
# We no longer have the needed pubkey and we haven't requested
|
||||||
|
# it.
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'For some reason, the status of a message in our outbox is \'doingmsgpow\' even though we lack the pubkey. Here is the RIPE hash of the needed pubkey: %s\n' % toripe.encode('hex'))
|
||||||
|
shared.printLock.release()
|
||||||
|
t = (toaddress,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='msgqueued' WHERE toaddress=? AND status='doingmsgpow' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
||||||
|
toripe, bitmessagemain.translateText("MainWindow",'Sending a request for the recipient\'s encryption key.'))))
|
||||||
|
self.requestPubKey(toaddress)
|
||||||
|
continue
|
||||||
|
bitmessagemain.ackdataForWhichImWatching[ackdata] = 0
|
||||||
|
toStatus, toAddressVersionNumber, toStreamNumber, toHash = decodeAddress(
|
||||||
|
toaddress)
|
||||||
|
fromStatus, fromAddressVersionNumber, fromStreamNumber, fromHash = decodeAddress(
|
||||||
|
fromaddress)
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Looking up the receiver\'s public key"))))
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'Found a message in our database that needs to be sent with this pubkey.'
|
||||||
|
print 'First 150 characters of message:', repr(message[:150])
|
||||||
|
shared.printLock.release()
|
||||||
|
|
||||||
|
# mark the pubkey as 'usedpersonally' so that we don't ever delete
|
||||||
|
# it.
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = (toripe,)
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE pubkeys SET usedpersonally='yes' WHERE hash=?''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
# Let us fetch the recipient's public key out of our database. If
|
||||||
|
# the required proof of work difficulty is too hard then we'll
|
||||||
|
# abort.
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'SELECT transmitdata FROM pubkeys WHERE hash=?')
|
||||||
|
shared.sqlSubmitQueue.put((toripe,))
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlLock.release()
|
||||||
|
if queryreturn == []:
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write(
|
||||||
|
'(within sendMsg) The needed pubkey was not found. This should never happen. Aborting send.\n')
|
||||||
|
shared.printLock.release()
|
||||||
|
return
|
||||||
|
for row in queryreturn:
|
||||||
|
pubkeyPayload, = row
|
||||||
|
|
||||||
|
# The pubkey message is stored the way we originally received it
|
||||||
|
# which means that we need to read beyond things like the nonce and
|
||||||
|
# time to get to the actual public keys.
|
||||||
|
readPosition = 8 # to bypass the nonce
|
||||||
|
pubkeyEmbeddedTime, = unpack(
|
||||||
|
'>I', pubkeyPayload[readPosition:readPosition + 4])
|
||||||
|
# This section is used for the transition from 32 bit time to 64
|
||||||
|
# bit time in the protocol.
|
||||||
|
if pubkeyEmbeddedTime == 0:
|
||||||
|
pubkeyEmbeddedTime, = unpack(
|
||||||
|
'>Q', pubkeyPayload[readPosition:readPosition + 8])
|
||||||
|
readPosition += 8
|
||||||
|
else:
|
||||||
|
readPosition += 4
|
||||||
|
readPosition += 1 # to bypass the address version whose length is definitely 1
|
||||||
|
streamNumber, streamNumberLength = decodeVarint(
|
||||||
|
pubkeyPayload[readPosition:readPosition + 10])
|
||||||
|
readPosition += streamNumberLength
|
||||||
|
behaviorBitfield = pubkeyPayload[readPosition:readPosition + 4]
|
||||||
|
readPosition += 4 # to bypass the bitfield of behaviors
|
||||||
|
# pubSigningKeyBase256 =
|
||||||
|
# pubkeyPayload[readPosition:readPosition+64] #We don't use this
|
||||||
|
# key for anything here.
|
||||||
|
readPosition += 64
|
||||||
|
pubEncryptionKeyBase256 = pubkeyPayload[
|
||||||
|
readPosition:readPosition + 64]
|
||||||
|
readPosition += 64
|
||||||
|
if toAddressVersionNumber == 2:
|
||||||
|
requiredAverageProofOfWorkNonceTrialsPerByte = shared.networkDefaultProofOfWorkNonceTrialsPerByte
|
||||||
|
requiredPayloadLengthExtraBytes = shared.networkDefaultPayloadLengthExtraBytes
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Doing work necessary to send message.\nThere is no required difficulty for version 2 addresses like this."))))
|
||||||
|
elif toAddressVersionNumber == 3:
|
||||||
|
requiredAverageProofOfWorkNonceTrialsPerByte, varintLength = decodeVarint(
|
||||||
|
pubkeyPayload[readPosition:readPosition + 10])
|
||||||
|
readPosition += varintLength
|
||||||
|
requiredPayloadLengthExtraBytes, varintLength = decodeVarint(
|
||||||
|
pubkeyPayload[readPosition:readPosition + 10])
|
||||||
|
readPosition += varintLength
|
||||||
|
if requiredAverageProofOfWorkNonceTrialsPerByte < shared.networkDefaultProofOfWorkNonceTrialsPerByte: # We still have to meet a minimum POW difficulty regardless of what they say is allowed in order to get our message to propagate through the network.
|
||||||
|
requiredAverageProofOfWorkNonceTrialsPerByte = shared.networkDefaultProofOfWorkNonceTrialsPerByte
|
||||||
|
if requiredPayloadLengthExtraBytes < shared.networkDefaultPayloadLengthExtraBytes:
|
||||||
|
requiredPayloadLengthExtraBytes = shared.networkDefaultPayloadLengthExtraBytes
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, bitmessagemain.translateText("MainWindow", "Doing work necessary to send message.\nReceiver\'s required difficulty: %1 and %2").arg(str(float(
|
||||||
|
requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes)))))
|
||||||
|
if status != 'forcepow':
|
||||||
|
if (requiredAverageProofOfWorkNonceTrialsPerByte > shared.config.getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') and shared.config.getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') != 0) or (requiredPayloadLengthExtraBytes > shared.config.getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') and shared.config.getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') != 0):
|
||||||
|
# The demanded difficulty is more than we are willing
|
||||||
|
# to do.
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = (ackdata,)
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='toodifficult' WHERE ackdata=? ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, bitmessagemain.translateText("MainWindow", "Problem: The work demanded by the recipient (%1 and %2) is more difficult than you are willing to do.").arg(str(float(requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(
|
||||||
|
requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes)).arg(unicode(strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
||||||
|
continue
|
||||||
|
|
||||||
|
embeddedTime = pack('>Q', (int(time.time()) + random.randrange(
|
||||||
|
-300, 300))) # the current time plus or minus five minutes. We will use this time both for our message and for the ackdata packed within our message.
|
||||||
|
if fromAddressVersionNumber == 2:
|
||||||
|
payload = '\x01' # Message version.
|
||||||
|
payload += encodeVarint(fromAddressVersionNumber)
|
||||||
|
payload += encodeVarint(fromStreamNumber)
|
||||||
|
payload += '\x00\x00\x00\x01' # Bitfield of features and behaviors that can be expected from me. (See https://bitmessage.org/wiki/Protocol_specification#Pubkey_bitfield_features )
|
||||||
|
|
||||||
|
# We need to convert our private keys to public keys in order
|
||||||
|
# to include them.
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privencryptionkey')
|
||||||
|
except:
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
||||||
|
continue
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(
|
||||||
|
privSigningKeyHex).decode('hex')
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload += pubSigningKey[
|
||||||
|
1:] # The \x04 on the beginning of the public keys are not sent. This way there is only one acceptable way to encode and send a public key.
|
||||||
|
payload += pubEncryptionKey[1:]
|
||||||
|
|
||||||
|
payload += toHash # This hash will be checked by the receiver of the message to verify that toHash belongs to them. This prevents a Surreptitious Forwarding Attack.
|
||||||
|
payload += '\x02' # Type 2 is simple UTF-8 message encoding as specified on the Protocol Specification on the Bitmessage Wiki.
|
||||||
|
messageToTransmit = 'Subject:' + \
|
||||||
|
subject + '\n' + 'Body:' + message
|
||||||
|
payload += encodeVarint(len(messageToTransmit))
|
||||||
|
payload += messageToTransmit
|
||||||
|
fullAckPayload = self.generateFullAckMessage(
|
||||||
|
ackdata, toStreamNumber, embeddedTime) # The fullAckPayload is a normal msg protocol message with the proof of work already completed that the receiver of this message can easily send out.
|
||||||
|
payload += encodeVarint(len(fullAckPayload))
|
||||||
|
payload += fullAckPayload
|
||||||
|
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
||||||
|
payload += encodeVarint(len(signature))
|
||||||
|
payload += signature
|
||||||
|
|
||||||
|
if fromAddressVersionNumber == 3:
|
||||||
|
payload = '\x01' # Message version.
|
||||||
|
payload += encodeVarint(fromAddressVersionNumber)
|
||||||
|
payload += encodeVarint(fromStreamNumber)
|
||||||
|
payload += '\x00\x00\x00\x01' # Bitfield of features and behaviors that can be expected from me. (See https://bitmessage.org/wiki/Protocol_specification#Pubkey_bitfield_features )
|
||||||
|
|
||||||
|
# We need to convert our private keys to public keys in order
|
||||||
|
# to include them.
|
||||||
|
try:
|
||||||
|
privSigningKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privsigningkey')
|
||||||
|
privEncryptionKeyBase58 = shared.config.get(
|
||||||
|
fromaddress, 'privencryptionkey')
|
||||||
|
except:
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (
|
||||||
|
ackdata, bitmessagemain.translateText("MainWindow", "Error! Could not find sender address (your address) in the keys.dat file."))))
|
||||||
|
continue
|
||||||
|
|
||||||
|
privSigningKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privSigningKeyBase58).encode('hex')
|
||||||
|
privEncryptionKeyHex = shared.decodeWalletImportFormat(
|
||||||
|
privEncryptionKeyBase58).encode('hex')
|
||||||
|
|
||||||
|
pubSigningKey = highlevelcrypto.privToPub(
|
||||||
|
privSigningKeyHex).decode('hex')
|
||||||
|
pubEncryptionKey = highlevelcrypto.privToPub(
|
||||||
|
privEncryptionKeyHex).decode('hex')
|
||||||
|
|
||||||
|
payload += pubSigningKey[
|
||||||
|
1:] # The \x04 on the beginning of the public keys are not sent. This way there is only one acceptable way to encode and send a public key.
|
||||||
|
payload += pubEncryptionKey[1:]
|
||||||
|
# If the receiver of our message is in our address book,
|
||||||
|
# subscriptions list, or whitelist then we will allow them to
|
||||||
|
# do the network-minimum proof of work. Let us check to see if
|
||||||
|
# the receiver is in any of those lists.
|
||||||
|
if shared.isAddressInMyAddressBookSubscriptionsListOrWhitelist(toaddress):
|
||||||
|
payload += encodeVarint(
|
||||||
|
shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
payload += encodeVarint(
|
||||||
|
shared.networkDefaultPayloadLengthExtraBytes)
|
||||||
|
else:
|
||||||
|
payload += encodeVarint(shared.config.getint(
|
||||||
|
fromaddress, 'noncetrialsperbyte'))
|
||||||
|
payload += encodeVarint(shared.config.getint(
|
||||||
|
fromaddress, 'payloadlengthextrabytes'))
|
||||||
|
|
||||||
|
payload += toHash # This hash will be checked by the receiver of the message to verify that toHash belongs to them. This prevents a Surreptitious Forwarding Attack.
|
||||||
|
payload += '\x02' # Type 2 is simple UTF-8 message encoding as specified on the Protocol Specification on the Bitmessage Wiki.
|
||||||
|
messageToTransmit = 'Subject:' + \
|
||||||
|
subject + '\n' + 'Body:' + message
|
||||||
|
payload += encodeVarint(len(messageToTransmit))
|
||||||
|
payload += messageToTransmit
|
||||||
|
fullAckPayload = self.generateFullAckMessage(
|
||||||
|
ackdata, toStreamNumber, embeddedTime) # The fullAckPayload is a normal msg protocol message with the proof of work already completed that the receiver of this message can easily send out.
|
||||||
|
payload += encodeVarint(len(fullAckPayload))
|
||||||
|
payload += fullAckPayload
|
||||||
|
signature = highlevelcrypto.sign(payload, privSigningKeyHex)
|
||||||
|
payload += encodeVarint(len(signature))
|
||||||
|
payload += signature
|
||||||
|
|
||||||
|
|
||||||
|
# We have assembled the data that will be encrypted.
|
||||||
|
try:
|
||||||
|
encrypted = highlevelcrypto.encrypt(payload,"04"+pubEncryptionKeyBase256.encode('hex'))
|
||||||
|
except:
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = (ackdata,)
|
||||||
|
shared.sqlSubmitQueue.put('''UPDATE sent SET status='badkey' WHERE ackdata=?''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata',(ackdata,bitmessagemain.translateText("MainWindow",'Problem: The recipient\'s encryption key is no good. Could not encrypt message. %1').arg(unicode(strftime(shared.config.get('bitmessagesettings', 'timeformat'),localtime(int(time.time()))),'utf-8')))))
|
||||||
|
continue
|
||||||
|
encryptedPayload = embeddedTime + encodeVarint(toStreamNumber) + encrypted
|
||||||
|
target = 2**64 / ((len(encryptedPayload)+requiredPayloadLengthExtraBytes+8) * requiredAverageProofOfWorkNonceTrialsPerByte)
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print '(For msg message) Doing proof of work. Total required difficulty:', float(requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte, 'Required small message difficulty:', float(requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes
|
||||||
|
shared.printLock.release()
|
||||||
|
powStartTime = time.time()
|
||||||
|
initialHash = hashlib.sha512(encryptedPayload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print '(For msg message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
try:
|
||||||
|
print 'POW took', int(time.time() - powStartTime), 'seconds.', nonce / (time.time() - powStartTime), 'nonce trials per second.'
|
||||||
|
except:
|
||||||
|
pass
|
||||||
|
shared.printLock.release()
|
||||||
|
encryptedPayload = pack('>Q', nonce) + encryptedPayload
|
||||||
|
|
||||||
|
inventoryHash = calculateInventoryHash(encryptedPayload)
|
||||||
|
objectType = 'msg'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, toStreamNumber, encryptedPayload, int(time.time()))
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, bitmessagemain.translateText("MainWindow", "Message sent. Waiting on acknowledgement. Sent on %1").arg(unicode(
|
||||||
|
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
||||||
|
print 'Broadcasting inv for my msg(within sendmsg function):', inventoryHash.encode('hex')
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
|
||||||
|
# Update the status of the message in the 'sent' table to have a
|
||||||
|
# 'msgsent' status
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
t = (ackdata,)
|
||||||
|
shared.sqlSubmitQueue.put('''UPDATE sent SET status='msgsent' WHERE ackdata=?''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
queryreturn = shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
|
||||||
|
def requestPubKey(self, toAddress):
|
||||||
|
toStatus, addressVersionNumber, streamNumber, ripe = decodeAddress(
|
||||||
|
toAddress)
|
||||||
|
if toStatus != 'success':
|
||||||
|
shared.printLock.acquire()
|
||||||
|
sys.stderr.write('Very abnormal error occurred in requestPubKey. toAddress is: ' + repr(
|
||||||
|
toAddress) + '. Please report this error to Atheros.')
|
||||||
|
shared.printLock.release()
|
||||||
|
return
|
||||||
|
neededPubkeys[ripe] = 0
|
||||||
|
payload = pack('>Q', (int(time.time()) + random.randrange(
|
||||||
|
-300, 300))) # the current time plus or minus five minutes.
|
||||||
|
payload += encodeVarint(addressVersionNumber)
|
||||||
|
payload += encodeVarint(streamNumber)
|
||||||
|
payload += ripe
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'making request for pubkey with ripe:', ripe.encode('hex')
|
||||||
|
shared.printLock.release()
|
||||||
|
# print 'trial value', trialValue
|
||||||
|
statusbar = 'Doing the computations necessary to request the recipient\'s public key.'
|
||||||
|
shared.UISignalQueue.put(('updateStatusBar', statusbar))
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByHash', (
|
||||||
|
ripe, bitmessagemain.translateText("MainWindow",'Doing work necessary to request encryption key.'))))
|
||||||
|
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
||||||
|
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print 'Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
shared.printLock.release()
|
||||||
|
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
inventoryHash = calculateInventoryHash(payload)
|
||||||
|
objectType = 'getpubkey'
|
||||||
|
shared.inventory[inventoryHash] = (
|
||||||
|
objectType, streamNumber, payload, int(time.time()))
|
||||||
|
print 'sending inv (for the getpubkey message)'
|
||||||
|
shared.broadcastToSendDataQueues((
|
||||||
|
streamNumber, 'sendinv', inventoryHash))
|
||||||
|
|
||||||
|
t = (toAddress,)
|
||||||
|
shared.sqlLock.acquire()
|
||||||
|
shared.sqlSubmitQueue.put(
|
||||||
|
'''UPDATE sent SET status='awaitingpubkey' WHERE toaddress=? AND status='doingpubkeypow' ''')
|
||||||
|
shared.sqlSubmitQueue.put(t)
|
||||||
|
shared.sqlReturnQueue.get()
|
||||||
|
shared.sqlSubmitQueue.put('commit')
|
||||||
|
shared.sqlLock.release()
|
||||||
|
|
||||||
|
shared.UISignalQueue.put((
|
||||||
|
'updateStatusBar', bitmessagemain.translateText("MainWindow",'Broacasting the public key request. This program will auto-retry if they are offline.')))
|
||||||
|
shared.UISignalQueue.put(('updateSentItemStatusByHash', (ripe, bitmessagemain.translateText("MainWindow",'Sending public key request. Waiting for reply. Requested at %1').arg(unicode(
|
||||||
|
strftime(shared.config.get('bitmessagesettings', 'timeformat'), localtime(int(time.time()))), 'utf-8')))))
|
||||||
|
|
||||||
|
def generateFullAckMessage(self, ackdata, toStreamNumber, embeddedTime):
|
||||||
|
payload = embeddedTime + encodeVarint(toStreamNumber) + ackdata
|
||||||
|
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
|
||||||
|
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print '(For ack message) Doing proof of work...'
|
||||||
|
shared.printLock.release()
|
||||||
|
powStartTime = time.time()
|
||||||
|
initialHash = hashlib.sha512(payload).digest()
|
||||||
|
trialValue, nonce = proofofwork.run(target, initialHash)
|
||||||
|
shared.printLock.acquire()
|
||||||
|
print '(For ack message) Found proof of work', trialValue, 'Nonce:', nonce
|
||||||
|
try:
|
||||||
|
print 'POW took', int(time.time() - powStartTime), 'seconds.', nonce / (time.time() - powStartTime), 'nonce trials per second.'
|
||||||
|
except:
|
||||||
|
pass
|
||||||
|
shared.printLock.release()
|
||||||
|
payload = pack('>Q', nonce) + payload
|
||||||
|
headerData = '\xe9\xbe\xb4\xd9' # magic bits, slighly different from Bitcoin's magic bits.
|
||||||
|
headerData += 'msg\x00\x00\x00\x00\x00\x00\x00\x00\x00'
|
||||||
|
headerData += pack('>L', len(payload))
|
||||||
|
headerData += hashlib.sha512(payload).digest()[:4]
|
||||||
|
return headerData + payload
|
||||||
Reference in New Issue
Block a user