def _checkAndSharePubkeyWithPeers(data):
if len(data) < 146 or len(data) > 440: # sanity check
return
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(data[readPosition:readPosition +
10])
readPosition += varintLength
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.',
streamNumber)
return
if addressVersion >= 4:
tag = data[readPosition:readPosition + 32]
logger.debug('tag in received pubkey is: %s', hexlify(tag))
else:
tag = ''
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this pubkey. Ignoring it.')
return
objectType = 1
Inventory()[inventoryHash] = (objectType, streamNumber, data, embeddedTime,
tag)
# This object is valid. Forward it to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType, data))
def unpack_binary(data, dont_check=False):
read_pos = 0
data_type, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
blockchain, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
time_data_bin_length, offset = decodeVarint(data[read_pos:read_pos +
10])
read_pos += offset
time_data_bin = data[read_pos:read_pos + time_data_bin_length]
read_pos += time_data_bin_length
time_data = ConsensusTimeData.unpack_binary(time_data_bin)
result = None
if data_type == ConsensusData.DATA_TYPE_PLAIN:
result = ConsensusData(data_type, blockchain, time_data)
elif data_type == ConsensusData.DATA_TYPE_VOTING:
from voting_data import VotingData
result = VotingData.unpack_binary(data[read_pos:], blockchain,
time_data, dont_check)
time_data.data = result
return result
def _checkAndShareMsgWithPeers(data):
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass nonce, time, and object type
objectVersion, objectVersionLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += objectVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 9])
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.',
streamNumber)
return
readPosition += streamNumberLength
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this msg message. Ignoring.')
return
# This msg message is valid. Let's let our peers know about it.
objectType = 2
Inventory()[inventoryHash] = (objectType, streamNumber, data, embeddedTime,
'')
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's enqueue it to be processed ourselves.
objectProcessorQueue.put((objectType, data))
def recerror(self, data):
"""
The remote node has been polite enough to send you an error message.
"""
fatalStatus, readPosition = decodeVarint(data[:10])
banTime, banTimeLength = decodeVarint(data[readPosition:readPosition+10])
readPosition += banTimeLength
inventoryVectorLength, inventoryVectorLengthLength = decodeVarint(data[readPosition:readPosition+10])
if inventoryVectorLength > 100:
return
readPosition += inventoryVectorLengthLength
inventoryVector = data[readPosition:readPosition+inventoryVectorLength]
readPosition += inventoryVectorLength
errorTextLength, errorTextLengthLength = decodeVarint(data[readPosition:readPosition+10])
if errorTextLength > 1000:
return
readPosition += errorTextLengthLength
errorText = data[readPosition:readPosition+errorTextLength]
if fatalStatus == 0:
fatalHumanFriendly = 'Warning'
elif fatalStatus == 1:
fatalHumanFriendly = 'Error'
elif fatalStatus == 2:
fatalHumanFriendly = 'Fatal'
message = '%s message received from %s: %s.' % (fatalHumanFriendly, self.peer, errorText)
if inventoryVector:
message += " This concerns object %s" % hexlify(inventoryVector)
if banTime > 0:
message += " Remote node says that the ban time is %s" % banTime
logger.error(message)
def _checkAndShareMsgWithPeers(data):
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass nonce, time, and object type
objectVersion, objectVersionLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += objectVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 9])
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
readPosition += streamNumberLength
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this msg message. Ignoring.')
return
# This msg message is valid. Let's let our peers know about it.
objectType = 2
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime,'')
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's enqueue it to be processed ourselves.
objectProcessorQueue.put((objectType,data))
def _checkAndSharePubkeyWithPeers(data):
if len(data) < 146 or len(data) > 440: # sanity check
return
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
if addressVersion >= 4:
tag = data[readPosition:readPosition + 32]
logger.debug('tag in received pubkey is: %s', hexlify(tag))
else:
tag = ''
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this pubkey. Ignoring it.')
return
objectType = 1
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime, tag)
# This object is valid. Forward it to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType,data))
def _checkAndShareBroadcastWithPeers(data):
if len(data) < 180:
logger.debug('The payload length of this broadcast packet is unreasonably low. Someone is probably trying funny business. Ignoring message.')
return
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
broadcastVersion, broadcastVersionLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += broadcastVersionLength
if broadcastVersion >= 2:
streamNumber, streamNumberLength = decodeVarint(data[readPosition:readPosition + 10])
readPosition += streamNumberLength
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
if broadcastVersion >= 3:
tag = data[readPosition:readPosition+32]
else:
tag = ''
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this broadcast object. Ignoring.')
return
# It is valid. Let's let our peers know about it.
objectType = 3
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime, tag)
# This object is valid. Forward it to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType,data))
def _checkAndShareUndefinedObjectWithPeers(data):
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass nonce, time, and object type
objectVersion, objectVersionLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += objectVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 9])
if streamNumber not in state.streamsInWhichIAmParticipating:
logger.debug(
'The streamNumber %i isn\'t one we are interested in.',
streamNumber
)
return
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug(
'We have already received this undefined object. Ignoring.')
return
objectType, = unpack('>I', data[16:20])
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime, '')
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
protocol.broadcastToSendDataQueues(
(streamNumber, 'advertiseobject', inventoryHash))
def _checkAndShareGetpubkeyWithPeers(data):
if len(data) < 42:
logger.info('getpubkey message doesn\'t contain enough data. Ignoring.')
return
if len(data) > 200:
logger.info('getpubkey is abnormally long. Sanity check failed. Ignoring object.')
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
requestedAddressVersionNumber, addressVersionLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += addressVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 10])
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
readPosition += streamNumberLength
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this getpubkey request. Ignoring it.')
return
objectType = 0
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime,'')
# This getpubkey request is valid. Forward to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType,data))
def recversion(data):
remoteProtocolVersion, = unpack('>L', data[:4])
print 'remoteProtocolVersion:', remoteProtocolVersion
if remoteProtocolVersion < 3:
print 'Closing connection to old protocol version', remoteProtocolVersion, 'node: ', 'peer'
return
timestamp, = unpack('>Q', data[12:20])
print 'timestamp:', timestamp
timeOffset = timestamp - int(time.time())
myExternalDest = data[28:544]
print 'myExternalDest:', myExternalDest
useragentLength, lengthOfUseragentVarint = decodeVarint(data[1076:1080])
readPosition = 1076 + lengthOfUseragentVarint
useragent = data[readPosition:readPosition + useragentLength]
readPosition += useragentLength
numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint(
data[readPosition:])
readPosition += lengthOfNumberOfStreamsInVersionMessage
streamNumber, lengthOfRemoteStreamNumber = decodeVarint(
data[readPosition:])
print 'Remote node useragent:', useragent, '\nstream number:', streamNumber, '\ntime offset:', timeOffset, 'seconds.'
if streamNumber != 1:
print 'Closed connection to', 'peer', 'because they are interested in stream', streamNumber, '.'
return
if data[1068:1076] == 'Z\xef\x86\x05\x1f\x06\xb0\x9e':
print 'Closing connection to myself: ', 'peer'
return
def _checkAndShareGetpubkeyWithPeers(data):
if len(data) < 42:
logger.info(
'getpubkey message doesn\'t contain enough data. Ignoring.')
return
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
requestedAddressVersionNumber, addressVersionLength = \
decodeVarint(data[readPosition:readPosition + 10])
readPosition += addressVersionLength
streamNumber, streamNumberLength = \
decodeVarint(data[readPosition:readPosition + 10])
if streamNumber not in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %i isn\'t one we are interested in.',
streamNumber)
return
readPosition += streamNumberLength
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug(
'We have already received this getpubkey request. Ignoring it.')
return
objectType = 0
Inventory()[inventoryHash] = (objectType, streamNumber, data, embeddedTime,
'')
# This getpubkey request is valid. Forward to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
protocol.broadcastToSendDataQueues(
(streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType, data))
def _checkAndShareBroadcastWithPeers(data):
if len(data) < 180:
logger.debug('The payload length of this broadcast packet is unreasonably low. Someone is probably trying funny business. Ignoring message.')
return
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
broadcastVersion, broadcastVersionLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += broadcastVersionLength
if broadcastVersion >= 2:
streamNumber, streamNumberLength = decodeVarint(data[readPosition:readPosition + 10])
readPosition += streamNumberLength
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
if broadcastVersion >= 3:
tag = data[readPosition:readPosition+32]
else:
tag = ''
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this broadcast object. Ignoring.')
return
# It is valid. Let's let our peers know about it.
objectType = 3
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime, tag)
# This object is valid. Forward it to peers.
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
# Now let's queue it to be processed ourselves.
objectProcessorQueue.put((objectType,data))
def unpack_binary( data ):
read_pos = 0
start, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
post_deadline, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
commitment_phase_deadline, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
return ConsensusTimeData( start, post_deadline, commitment_phase_deadline )
def unpack_binary(data):
read_pos = 0
start, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
post_deadline, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
commitment_phase_deadline, offset = decodeVarint(
data[read_pos:read_pos + 10])
read_pos += offset
return ConsensusTimeData(start, post_deadline,
commitment_phase_deadline)
def unpack_binary( data, blockchain, time_data, dont_check ):
"""
Unpacks the following values from a binary string: question, answers, addresses, public_keys
Variables blockchain, time_data, and dont_check must be provided for the constructor.
"""
read_pos = 0
question_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
question = data[read_pos:read_pos+question_len]
read_pos += question_len
answer_count, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
answers = []
for _ in range( answer_count ):
answer_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
answer = data[read_pos:read_pos+answer_len]
read_pos += answer_len
answers.append( answer )
address_count, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
addresses = []
for _ in range( address_count ):
address_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
address = data[read_pos:read_pos+address_len]
read_pos += address_len
addresses.append( address )
public_key_count, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
public_keys = []
for _ in range( public_key_count ):
signing_pubkey_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
if signing_pubkey_len == 0:
signing_pubkey = None
else:
signing_pubkey = data[read_pos:read_pos+signing_pubkey_len]
read_pos += signing_pubkey_len
encryption_pubkey_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
if encryption_pubkey_len == 0:
encryption_pubkey = None
else:
encryption_pubkey = data[read_pos:read_pos+encryption_pubkey_len]
read_pos += encryption_pubkey_len
pubkey = ( signing_pubkey, encryption_pubkey )
public_keys.append( pubkey )
return VotingData( blockchain, time_data, question, answers, addresses, public_keys, dont_check )
def processonion(data):
"""Process onionpeer object"""
readPosition = 20 # bypass the nonce, time, and object type
length = decodeVarint(data[readPosition:readPosition + 10])[1]
readPosition += length
stream, length = decodeVarint(data[readPosition:readPosition + 10])
readPosition += length
# it seems that stream is checked in network.bmproto
port, length = decodeVarint(data[readPosition:readPosition + 10])
host = protocol.checkIPAddress(data[readPosition + length:])
if not host:
return
peer = state.Peer(host, port)
with knownnodes.knownNodesLock:
knownnodes.addKnownNode(stream,
peer,
is_self=state.ownAddresses.get(peer))
def HandleDissimatePubKey(self, params):
# The device issuing this command to PyBitmessage supplies a pubkey
# object to be disseminated to the rest of the Bitmessage network.
# PyBitmessage accepts this pubkey object and sends it out to the rest
# of the Bitmessage network as if it had generated the pubkey object
# itself. Please do not yet add this to the api doc.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
payload, = params
payload = self._decode(payload, "hex")
# Let us do the POW
target = 2**64 / (
(len(payload) + defaults.networkDefaultPayloadLengthExtraBytes + 8)
* defaults.networkDefaultPayloadLengthExtraBytes)
print('(For pubkey message via API) Doing proof of work...')
initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash)
print('(For pubkey message via API) Found proof of work', trialValue,
'Nonce:', nonce)
payload = pack('>Q', nonce) + payload
pubkeyReadPosition = 8 # bypass the nonce
if payload[pubkeyReadPosition:pubkeyReadPosition+4] == \
'\x00\x00\x00\x00': # if this pubkey uses 8 byte time
pubkeyReadPosition += 8
else:
pubkeyReadPosition += 4
addressVersion, addressVersionLength = decodeVarint(
payload[pubkeyReadPosition:pubkeyReadPosition + 10])
pubkeyReadPosition += addressVersionLength
pubkeyStreamNumber = decodeVarint(
payload[pubkeyReadPosition:pubkeyReadPosition + 10])[0]
inventoryHash = calculateInventoryHash(payload)
objectType = 1 # TODO: support v4 pubkeys
TTL = 28 * 24 * 60 * 60
Inventory()[inventoryHash] = (objectType, pubkeyStreamNumber, payload,
int(time.time()) + TTL, '')
with shared.printLock:
print(
'broadcasting inv within API command disseminatePubkey with hash:',
hexlify(inventoryHash))
queues.invQueue.put((pubkeyStreamNumber, inventoryHash))
def decode_vote( data ):
"""
Decode a vote,
returns ( answer_no, previous_vote_hash )
"""
read_pos = 0
answer_no, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
previous_vote_hash_len, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
previous_vote_hash = data[read_pos:read_pos+previous_vote_hash_len]
read_pos += previous_vote_hash_len
if previous_vote_hash == "":
previous_vote_hash = None
return answer_no, previous_vote_hash
def decode_vote(data):
"""
Decode a vote,
returns ( answer_no, previous_vote_hash )
"""
read_pos = 0
answer_no, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
previous_vote_hash_len, offset = decodeVarint(data[read_pos:read_pos +
10])
read_pos += offset
previous_vote_hash = data[read_pos:read_pos + previous_vote_hash_len]
read_pos += previous_vote_hash_len
if previous_vote_hash == "":
previous_vote_hash = None
return answer_no, previous_vote_hash
def _checkAndShareUndefinedObjectWithPeers(data):
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass nonce, time, and object type
objectVersion, objectVersionLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += objectVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 9])
if not streamNumber in state.streamsInWhichIAmParticipating:
logger.debug('The streamNumber %s isn\'t one we are interested in.', streamNumber)
return
inventoryHash = calculateInventoryHash(data)
if inventoryHash in Inventory():
logger.debug('We have already received this undefined object. Ignoring.')
return
objectType, = unpack('>I', data[16:20])
Inventory()[inventoryHash] = (
objectType, streamNumber, data, embeddedTime,'')
logger.debug('advertising inv with hash: %s', hexlify(inventoryHash))
broadcastToSendDataQueues((streamNumber, 'advertiseobject', inventoryHash))
def unpack_binary( data, dont_check=False ):
read_pos = 0
data_type, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
blockchain, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
time_data_bin_length, offset = decodeVarint( data[read_pos:read_pos+10] )
read_pos += offset
time_data_bin = data[read_pos:read_pos+time_data_bin_length]
read_pos += time_data_bin_length
time_data = ConsensusTimeData.unpack_binary( time_data_bin )
result = None
if data_type == ConsensusData.DATA_TYPE_PLAIN:
result = ConsensusData( data_type, blockchain, time_data )
elif data_type == ConsensusData.DATA_TYPE_VOTING:
from voting_data import VotingData
result = VotingData.unpack_binary( data[read_pos:], blockchain, time_data, dont_check )
time_data.data = result
return result
def HandleDisseminatePreEncryptedMsg(self, params):
# The device issuing this command to PyBitmessage supplies a msg
# object that has already been encrypted but which still needs the POW
# to be done. PyBitmessage accepts this msg object and sends it out
# to the rest of the Bitmessage network as if it had generated
# the message itself. Please do not yet add this to the api doc.
if len(params) != 3:
raise APIError(0, 'I need 3 parameter!')
encryptedPayload, requiredAverageProofOfWorkNonceTrialsPerByte, \
requiredPayloadLengthExtraBytes = params
encryptedPayload = self._decode(encryptedPayload, "hex")
# Let us do the POW and attach it to the front
target = 2**64 / (
(len(encryptedPayload) + requiredPayloadLengthExtraBytes + 8) *
requiredAverageProofOfWorkNonceTrialsPerByte)
with shared.printLock:
print(
'(For msg message via API) Doing proof of work. Total required difficulty:',
float(requiredAverageProofOfWorkNonceTrialsPerByte) /
defaults.networkDefaultPayloadLengthExtraBytes,
'Required small message difficulty:',
float(requiredPayloadLengthExtraBytes) /
defaults.networkDefaultPayloadLengthExtraBytes)
powStartTime = time.time()
initialHash = hashlib.sha512(encryptedPayload).digest()
trialValue, nonce = proofofwork.run(target, initialHash)
with shared.printLock:
print('(For msg message via API) Found proof of work', trialValue,
'Nonce:', nonce)
try:
print('POW took %d seconds. %d nonce trials per second.' %
(int(time.time() - powStartTime), nonce /
(time.time() - powStartTime)))
except:
pass
encryptedPayload = pack('>Q', nonce) + encryptedPayload
toStreamNumber = decodeVarint(encryptedPayload[16:26])[0]
inventoryHash = calculateInventoryHash(encryptedPayload)
objectType = 2
TTL = 2.5 * 24 * 60 * 60
Inventory()[inventoryHash] = (objectType,
toStreamNumber, encryptedPayload,
int(time.time()) + TTL, '')
with shared.printLock:
print(
'Broadcasting inv for msg(API disseminatePreEncryptedMsg command):',
hexlify(inventoryHash))
queues.invQueue.put((toStreamNumber, inventoryHash))
def recinv(self, data):
numberOfItemsInInv, lengthOfVarint = decodeVarint(data[:10])
if numberOfItemsInInv > 50000:
sys.stderr.write('Too many items in inv message!')
return
if len(data) < lengthOfVarint + (numberOfItemsInInv * 32):
logger.info('inv message doesn\'t contain enough data. Ignoring.')
return
startTime = time.time()
advertisedSet = set()
for i in xrange(numberOfItemsInInv):
advertisedSet.add(data[lengthOfVarint + (32 * i):32 + lengthOfVarint + (32 * i)])
objectsNewToMe = advertisedSet
for stream in self.streamNumber:
objectsNewToMe -= Inventory().hashes_by_stream(stream)
logger.info('inv message lists %s objects. Of those %s are new to me. It took %s seconds to figure that out.', numberOfItemsInInv, len(objectsNewToMe), time.time()-startTime)
for item in random.sample(objectsNewToMe, len(objectsNewToMe)):
self.downloadQueue.put(item)
def decode_ring_signature(data):
"""
Decode a ring signature and returns ( message, c_0, ss, Y_tilde )
"""
if not data[:len(RingSignature.MAGIC_ID)] == RingSignature.MAGIC_ID:
raise Exception(
"Start of election message isn't RingSig Magic ID: %s" %
repr(data[:len(RingSignature.MAGIC_ID)]))
readPosition = len(RingSignature.MAGIC_ID)
c0_len, offset = decodeVarint(data[readPosition:readPosition + 10])
readPosition += offset
c0_bin = data[readPosition:readPosition + c0_len]
readPosition += c0_len
c0 = int(c0_bin.encode('hex') or '0', 16)
ss_len, offset = decodeVarint(data[readPosition:readPosition + 10])
readPosition += offset
ss = []
for _ in range(ss_len):
s_len, offset = decodeVarint(data[readPosition:readPosition + 10])
readPosition += offset
s_bin = data[readPosition:readPosition + s_len]
readPosition += s_len
s = int(s_bin.encode('hex') or '0', 16)
ss.append(s)
Y_tilde_x_len, offset = decodeVarint(data[readPosition:readPosition +
10])
readPosition += offset
Y_tilde_x_bin = data[readPosition:readPosition + Y_tilde_x_len]
readPosition += Y_tilde_x_len
Y_tilde_x = int(Y_tilde_x_bin.encode('hex') or '0', 16)
Y_tilde_y_len, offset = decodeVarint(data[readPosition:readPosition +
10])
readPosition += offset
Y_tilde_y_bin = data[readPosition:readPosition + Y_tilde_y_len]
readPosition += Y_tilde_y_len
Y_tilde_y = int(Y_tilde_y_bin.encode('hex') or '0', 16)
Y_tilde = Point(VotingData.CURVE, x=Y_tilde_x, y=Y_tilde_y)
message_len, offset = decodeVarint(data[readPosition:readPosition +
10])
readPosition += offset
message = data[readPosition:readPosition + message_len]
# readPosition += message_len
return message, c0, ss, Y_tilde
def recgetdata(self, data):
numberOfRequestedInventoryItems, lengthOfVarint = decodeVarint(
data[:10])
if len(data) < lengthOfVarint + (32 * numberOfRequestedInventoryItems):
logger.debug('getdata message does not contain enough data. Ignoring.')
return
self.antiIntersectionDelay(True) # only handle getdata requests if we have been connected long enough
for i in xrange(numberOfRequestedInventoryItems):
hash = data[lengthOfVarint + (
i * 32):32 + lengthOfVarint + (i * 32)]
logger.debug('received getdata request for item:' + hexlify(hash))
if self.objectHashHolderInstance.hasHash(hash):
self.antiIntersectionDelay()
else:
if hash in Inventory():
self.sendObject(hash, Inventory()[hash].payload)
else:
self.antiIntersectionDelay()
logger.warning('%s asked for an object with a getdata which is not in either our memory inventory or our SQL inventory. We probably cleaned it out after advertising it but before they got around to asking for it.' % (self.peer,))
def HandleGetMessageDataByDestinationHash(self, params):
# Method will eventually be used by a particular Android app to
# select relevant messages. Do not yet add this to the api
# doc.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
requestedHash, = params
if len(requestedHash) != 32:
raise APIError(
19, 'The length of hash should be 32 bytes (encoded in hex'
' thus 64 characters).')
requestedHash = self._decode(requestedHash, "hex")
# This is not a particularly commonly used API function. Before we
# use it we'll need to fill out a field in our inventory database
# which is blank by default (first20bytesofencryptedmessage).
queryreturn = sqlQuery(
"SELECT hash, payload FROM inventory WHERE tag = ''"
" and objecttype = 2")
with SqlBulkExecute() as sql:
for row in queryreturn:
hash01, payload = row
readPosition = 16 # Nonce length + time length
# Stream Number length
readPosition += decodeVarint(
payload[readPosition:readPosition + 10])[1]
t = (payload[readPosition:readPosition + 32], hash01)
sql.execute("UPDATE inventory SET tag=? WHERE hash=?", *t)
queryreturn = sqlQuery("SELECT payload FROM inventory WHERE tag = ?",
requestedHash)
data = '{"receivedMessageDatas":['
for row in queryreturn:
payload, = row
if len(data) > 25:
data += ','
data += json.dumps({'data': hexlify(payload)},
indent=4,
separators=(',', ': '))
data += ']}'
return data
def decode_ring_signature( data ):
"""
Decode a ring signature and returns ( message, c_0, ss, Y_tilde )
"""
if not data[:len( RingSignature.MAGIC_ID )] == RingSignature.MAGIC_ID:
raise Exception( "Start of election message isn't RingSig Magic ID: %s" % repr( data[:len(RingSignature.MAGIC_ID)] ) )
readPosition = len( RingSignature.MAGIC_ID )
c0_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
c0_bin = data[readPosition:readPosition+c0_len]
readPosition += c0_len
c0 = int( c0_bin.encode('hex') or '0', 16 )
ss_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
ss = []
for _ in range( ss_len ):
s_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
s_bin = data[readPosition:readPosition+s_len]
readPosition += s_len
s = int( s_bin.encode('hex') or '0', 16 )
ss.append( s )
Y_tilde_x_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
Y_tilde_x_bin = data[readPosition:readPosition+Y_tilde_x_len]
readPosition += Y_tilde_x_len
Y_tilde_x = int( Y_tilde_x_bin.encode('hex') or '0', 16 )
Y_tilde_y_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
Y_tilde_y_bin = data[readPosition:readPosition+Y_tilde_y_len]
readPosition += Y_tilde_y_len
Y_tilde_y = int( Y_tilde_y_bin.encode('hex') or '0', 16 )
Y_tilde = Point( VotingData.CURVE, x=Y_tilde_x, y=Y_tilde_y )
message_len, offset = decodeVarint( data[readPosition:readPosition+10] )
readPosition += offset
message = data[readPosition:readPosition+message_len]
# readPosition += message_len
return message, c0, ss, Y_tilde
def __consumeNumberOfAddresses(self):
numberOfAddresses, lengthOfNumberOfAddresses = decodeVarint(
self.data[self.position:self.position+10])
self.position += lengthOfNumberOfAddresses
# Sanity checks
if numberOfAddresses > 1000:
logger.debug('addr message contains too many addresses. Ignoring.')
return 0
if numberOfAddresses == 0:
logger.debug('addr message contains no addresses.')
return 0
if ( self.remoteProtocolVersion == 1 and
len(self.data) != lengthOfNumberOfAddresses + (34 * numberOfAddresses)
) or (
self.remoteProtocolVersion == 2 and
len(self.data) != lengthOfNumberOfAddresses + (38 * numberOfAddresses)
):
logger.debug('addr message (%s) does not contain the correct amount of data. Ignoring.'
% (repr(self.data)))
return 0
return numberOfAddresses
def decryptAndCheckPubkeyPayload(data, address):
"""
Version 4 pubkeys are encrypted. This function is run when we already have the
address to which we want to try to send a message. The 'data' may come either
off of the wire or we might have had it already in our inventory when we tried
to send a msg to this particular address.
"""
try:
status, addressVersion, streamNumber, ripe = decodeAddress(address)
readPosition = 20 # bypass the nonce, time, and object type
embeddedAddressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
embeddedStreamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
storedData = data[
20:
readPosition] # We'll store the address version and stream number (and some more) in the pubkeys table.
if addressVersion != embeddedAddressVersion:
logger.info(
'Pubkey decryption was UNsuccessful due to address version mismatch.'
)
return 'failed'
if streamNumber != embeddedStreamNumber:
logger.info(
'Pubkey decryption was UNsuccessful due to stream number mismatch.'
)
return 'failed'
tag = data[readPosition:readPosition + 32]
readPosition += 32
signedData = data[
8:
readPosition] # the time through the tag. More data is appended onto signedData below after the decryption.
encryptedData = data[readPosition:]
# Let us try to decrypt the pubkey
toAddress, cryptorObject = state.neededPubkeys[tag]
if toAddress != address:
logger.critical(
'decryptAndCheckPubkeyPayload failed due to toAddress mismatch. This is very peculiar. toAddress: %s, address %s',
toAddress, address)
# the only way I can think that this could happen is if someone encodes their address data two different ways.
# That sort of address-malleability should have been caught by the UI or API and an error given to the user.
return 'failed'
try:
decryptedData = cryptorObject.decrypt(encryptedData)
except:
# Someone must have encrypted some data with a different key
# but tagged it with a tag for which we are watching.
logger.info('Pubkey decryption was unsuccessful.')
return 'failed'
readPosition = 0
bitfieldBehaviors = decryptedData[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + decryptedData[readPosition:readPosition +
64]
readPosition += 64
publicEncryptionKey = '\x04' + decryptedData[
readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
storedData += decryptedData[:readPosition]
signedData += decryptedData[:readPosition]
signatureLength, signatureLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = decryptedData[readPosition:readPosition + signatureLength]
if highlevelcrypto.verify(signedData, signature,
hexlify(publicSigningKey)):
logger.info(
'ECDSA verify passed (within decryptAndCheckPubkeyPayload)')
else:
logger.info(
'ECDSA verify failed (within decryptAndCheckPubkeyPayload)')
return 'failed'
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
embeddedRipe = ripeHasher.digest()
if embeddedRipe != ripe:
# Although this pubkey object had the tag were were looking for and was
# encrypted with the correct encryption key, it doesn't contain the
# correct pubkeys. Someone is either being malicious or using buggy software.
logger.info(
'Pubkey decryption was UNsuccessful due to RIPE mismatch.')
return 'failed'
# Everything checked out. Insert it into the pubkeys table.
logger.info(
'within decryptAndCheckPubkeyPayload, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s', addressVersion,
streamNumber, hexlify(ripe), hexlify(publicSigningKey),
hexlify(publicEncryptionKey))
t = (address, addressVersion, storedData, int(time.time()), 'yes')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
return 'successful'
except varintDecodeError as e:
logger.info(
'Pubkey decryption was UNsuccessful due to a malformed varint.')
return 'failed'
except Exception as e:
logger.critical(
'Pubkey decryption was UNsuccessful because of an unhandled exception! This is definitely a bug! \n%s',
traceback.format_exc())
return 'failed'
def decode_payload_varint(self):
value, offset = addresses.decodeVarint(self.payload[self.payloadOffset:])
self.payloadOffset += offset
return value
def decode_payload_varint(self):
value, offset = addresses.decodeVarint(self.payload[self.payloadOffset:])
self.payloadOffset += offset
return value
def decode_payload_varint(self):
"""Decode a varint from the payload"""
value, offset = addresses.decodeVarint(
self.payload[self.payloadOffset:])
self.payloadOffset += offset
return value
def _handle_request(self, method, params):
if method == 'helloWorld':
(a, b) = params
return a + '-' + b
elif method == 'add':
(a, b) = params
return a + b
elif method == 'statusBar':
message, = params
shared.UISignalQueue.put(('updateStatusBar', message))
elif method == 'listAddresses' or method == 'listAddresses2':
data = '{"addresses":['
configSections = shared.config.sections()
for addressInKeysFile in configSections:
if addressInKeysFile != 'bitmessagesettings':
status, addressVersionNumber, streamNumber, hash01 = decodeAddress(
addressInKeysFile)
if len(data) > 20:
data += ','
if shared.config.has_option(addressInKeysFile, 'chan'):
chan = shared.config.getboolean(addressInKeysFile, 'chan')
else:
chan = False
label = shared.config.get(addressInKeysFile, 'label')
if method == 'listAddresses2':
label = label.encode('base64')
data += json.dumps({'label': label, 'address': addressInKeysFile, 'stream':
streamNumber, 'enabled': shared.config.getboolean(addressInKeysFile, 'enabled'), 'chan': chan}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'listAddressBookEntries' or method == 'listAddressbook': # the listAddressbook alias should be removed eventually.
queryreturn = sqlQuery('''SELECT label, address from addressbook''')
data = '{"addresses":['
for row in queryreturn:
label, address = row
label = shared.fixPotentiallyInvalidUTF8Data(label)
if len(data) > 20:
data += ','
data += json.dumps({'label':label.encode('base64'), 'address': address}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'addAddressBookEntry' or method == 'addAddressbook': # the addAddressbook alias should be deleted eventually.
if len(params) != 2:
raise APIError(0, "I need label and address")
address, label = params
label = self._decode(label, "base64")
address = addBMIfNotPresent(address)
self._verifyAddress(address)
queryreturn = sqlQuery("SELECT address FROM addressbook WHERE address=?", address)
if queryreturn != []:
raise APIError(16, 'You already have this address in your address book.')
sqlExecute("INSERT INTO addressbook VALUES(?,?)", label, address)
shared.UISignalQueue.put(('rerenderInboxFromLabels',''))
shared.UISignalQueue.put(('rerenderSentToLabels',''))
shared.UISignalQueue.put(('rerenderAddressBook',''))
return "Added address %s to address book" % address
elif method == 'deleteAddressBookEntry' or method == 'deleteAddressbook': # The deleteAddressbook alias should be deleted eventually.
if len(params) != 1:
raise APIError(0, "I need an address")
address, = params
address = addBMIfNotPresent(address)
self._verifyAddress(address)
sqlExecute('DELETE FROM addressbook WHERE address=?', address)
shared.UISignalQueue.put(('rerenderInboxFromLabels',''))
shared.UISignalQueue.put(('rerenderSentToLabels',''))
shared.UISignalQueue.put(('rerenderAddressBook',''))
return "Deleted address book entry for %s if it existed" % address
elif method == 'createRandomAddress':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
elif len(params) == 1:
label, = params
eighteenByteRipe = False
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 2:
label, eighteenByteRipe = params
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 3:
label, eighteenByteRipe, totalDifficulty = params
nonceTrialsPerByte = int(
shared.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 4:
label, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params
nonceTrialsPerByte = int(
shared.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = int(
shared.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty)
else:
raise APIError(0, 'Too many parameters!')
label = self._decode(label, "base64")
try:
unicode(label, 'utf-8')
except:
raise APIError(17, 'Label is not valid UTF-8 data.')
shared.apiAddressGeneratorReturnQueue.queue.clear()
streamNumberForAddress = 1
shared.addressGeneratorQueue.put((
'createRandomAddress', 4, streamNumberForAddress, label, 1, "", eighteenByteRipe, nonceTrialsPerByte, payloadLengthExtraBytes))
return shared.apiAddressGeneratorReturnQueue.get()
elif method == 'createDeterministicAddresses':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
elif len(params) == 1:
passphrase, = params
numberOfAddresses = 1
addressVersionNumber = 0
streamNumber = 0
eighteenByteRipe = False
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 2:
passphrase, numberOfAddresses = params
addressVersionNumber = 0
streamNumber = 0
eighteenByteRipe = False
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 3:
passphrase, numberOfAddresses, addressVersionNumber = params
streamNumber = 0
eighteenByteRipe = False
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 4:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber = params
eighteenByteRipe = False
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 5:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe = params
nonceTrialsPerByte = shared.config.get(
'bitmessagesettings', 'defaultnoncetrialsperbyte')
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 6:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty = params
nonceTrialsPerByte = int(
shared.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = shared.config.get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 7:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params
nonceTrialsPerByte = int(
shared.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = int(
shared.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty)
else:
raise APIError(0, 'Too many parameters!')
if len(passphrase) == 0:
raise APIError(1, 'The specified passphrase is blank.')
if not isinstance(eighteenByteRipe, bool):
raise APIError(23, 'Bool expected in eighteenByteRipe, saw %s instead' % type(eighteenByteRipe))
passphrase = self._decode(passphrase, "base64")
if addressVersionNumber == 0: # 0 means "just use the proper addressVersionNumber"
addressVersionNumber = 4
if addressVersionNumber != 3 and addressVersionNumber != 4:
raise APIError(2,'The address version number currently must be 3, 4, or 0 (which means auto-select). ' + addressVersionNumber + ' isn\'t supported.')
if streamNumber == 0: # 0 means "just use the most available stream"
streamNumber = 1
if streamNumber != 1:
raise APIError(3,'The stream number must be 1 (or 0 which means auto-select). Others aren\'t supported.')
if numberOfAddresses == 0:
raise APIError(4, 'Why would you ask me to generate 0 addresses for you?')
if numberOfAddresses > 999:
raise APIError(5, 'You have (accidentally?) specified too many addresses to make. Maximum 999. This check only exists to prevent mischief; if you really want to create more addresses than this, contact the Bitmessage developers and we can modify the check or you can do it yourself by searching the source code for this message.')
shared.apiAddressGeneratorReturnQueue.queue.clear()
logger.debug('Requesting that the addressGenerator create %s addresses.', numberOfAddresses)
shared.addressGeneratorQueue.put(
('createDeterministicAddresses', addressVersionNumber, streamNumber,
'unused API address', numberOfAddresses, passphrase, eighteenByteRipe, nonceTrialsPerByte, payloadLengthExtraBytes))
data = '{"addresses":['
queueReturn = shared.apiAddressGeneratorReturnQueue.get()
for item in queueReturn:
if len(data) > 20:
data += ','
data += "\"" + item + "\""
data += ']}'
return data
elif method == 'getDeterministicAddress':
if len(params) != 3:
raise APIError(0, 'I need exactly 3 parameters.')
passphrase, addressVersionNumber, streamNumber = params
numberOfAddresses = 1
eighteenByteRipe = False
if len(passphrase) == 0:
raise APIError(1, 'The specified passphrase is blank.')
passphrase = self._decode(passphrase, "base64")
if addressVersionNumber != 3 and addressVersionNumber != 4:
raise APIError(2, 'The address version number currently must be 3 or 4. ' + addressVersionNumber + ' isn\'t supported.')
if streamNumber != 1:
raise APIError(3, ' The stream number must be 1. Others aren\'t supported.')
shared.apiAddressGeneratorReturnQueue.queue.clear()
logger.debug('Requesting that the addressGenerator create %s addresses.', numberOfAddresses)
shared.addressGeneratorQueue.put(
('getDeterministicAddress', addressVersionNumber,
streamNumber, 'unused API address', numberOfAddresses, passphrase, eighteenByteRipe))
return shared.apiAddressGeneratorReturnQueue.get()
elif method == 'createChan':
if len(params) == 0:
raise APIError(0, 'I need parameters.')
elif len(params) == 1:
passphrase, = params
passphrase = self._decode(passphrase, "base64")
if len(passphrase) == 0:
raise APIError(1, 'The specified passphrase is blank.')
# It would be nice to make the label the passphrase but it is
# possible that the passphrase contains non-utf-8 characters.
try:
unicode(passphrase, 'utf-8')
label = str_chan + ' ' + passphrase
except:
label = str_chan + ' ' + repr(passphrase)
addressVersionNumber = 4
streamNumber = 1
shared.apiAddressGeneratorReturnQueue.queue.clear()
logger.debug('Requesting that the addressGenerator create chan %s.', passphrase)
shared.addressGeneratorQueue.put(('createChan', addressVersionNumber, streamNumber, label, passphrase))
queueReturn = shared.apiAddressGeneratorReturnQueue.get()
if len(queueReturn) == 0:
raise APIError(24, 'Chan address is already present.')
address = queueReturn[0]
return address
elif method == 'joinChan':
if len(params) < 2:
raise APIError(0, 'I need two parameters.')
elif len(params) == 2:
passphrase, suppliedAddress= params
passphrase = self._decode(passphrase, "base64")
if len(passphrase) == 0:
raise APIError(1, 'The specified passphrase is blank.')
# It would be nice to make the label the passphrase but it is
# possible that the passphrase contains non-utf-8 characters.
try:
unicode(passphrase, 'utf-8')
label = str_chan + ' ' + passphrase
except:
label = str_chan + ' ' + repr(passphrase)
status, addressVersionNumber, streamNumber, toRipe = self._verifyAddress(suppliedAddress)
suppliedAddress = addBMIfNotPresent(suppliedAddress)
shared.apiAddressGeneratorReturnQueue.queue.clear()
shared.addressGeneratorQueue.put(('joinChan', suppliedAddress, label, passphrase))
addressGeneratorReturnValue = shared.apiAddressGeneratorReturnQueue.get()
if addressGeneratorReturnValue == 'chan name does not match address':
raise APIError(18, 'Chan name does not match address.')
if len(addressGeneratorReturnValue) == 0:
raise APIError(24, 'Chan address is already present.')
#TODO: this variable is not used to anything
createdAddress = addressGeneratorReturnValue[0] # in case we ever want it for anything.
return "success"
elif method == 'leaveChan':
if len(params) == 0:
raise APIError(0, 'I need parameters.')
elif len(params) == 1:
address, = params
status, addressVersionNumber, streamNumber, toRipe = self._verifyAddress(address)
address = addBMIfNotPresent(address)
if not shared.config.has_section(address):
raise APIError(13, 'Could not find this address in your keys.dat file.')
if not shared.safeConfigGetBoolean(address, 'chan'):
raise APIError(25, 'Specified address is not a chan address. Use deleteAddress API call instead.')
shared.config.remove_section(address)
with open(shared.appdata + 'keys.dat', 'wb') as configfile:
shared.config.write(configfile)
return 'success'
elif method == 'deleteAddress':
if len(params) == 0:
raise APIError(0, 'I need parameters.')
elif len(params) == 1:
address, = params
status, addressVersionNumber, streamNumber, toRipe = self._verifyAddress(address)
address = addBMIfNotPresent(address)
if not shared.config.has_section(address):
raise APIError(13, 'Could not find this address in your keys.dat file.')
shared.config.remove_section(address)
with open(shared.appdata + 'keys.dat', 'wb') as configfile:
shared.config.write(configfile)
shared.UISignalQueue.put(('rerenderInboxFromLabels',''))
shared.UISignalQueue.put(('rerenderSentToLabels',''))
shared.reloadMyAddressHashes()
return 'success'
elif method == 'getAllInboxMessages':
queryreturn = sqlQuery(
'''SELECT msgid, toaddress, fromaddress, subject, received, message, encodingtype, read FROM inbox where folder='inbox' ORDER BY received''')
data = '{"inboxMessages":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, received, message, encodingtype, read = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
if len(data) > 25:
data += ','
data += json.dumps({'msgid': msgid.encode('hex'), 'toAddress': toAddress, 'fromAddress': fromAddress, 'subject': subject.encode(
'base64'), 'message': message.encode('base64'), 'encodingType': encodingtype, 'receivedTime': received, 'read': read}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getAllInboxMessageIds' or method == 'getAllInboxMessageIDs':
queryreturn = sqlQuery(
'''SELECT msgid FROM inbox where folder='inbox' ORDER BY received''')
data = '{"inboxMessageIds":['
for row in queryreturn:
msgid = row[0]
if len(data) > 25:
data += ','
data += json.dumps({'msgid': msgid.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getInboxMessageById' or method == 'getInboxMessageByID':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
elif len(params) == 1:
msgid = self._decode(params[0], "hex")
elif len(params) >= 2:
msgid = self._decode(params[0], "hex")
readStatus = params[1]
if not isinstance(readStatus, bool):
raise APIError(23, 'Bool expected in readStatus, saw %s instead.' % type(readStatus))
queryreturn = sqlQuery('''SELECT read FROM inbox WHERE msgid=?''', msgid)
# UPDATE is slow, only update if status is different
if queryreturn != [] and (queryreturn[0][0] == 1) != readStatus:
sqlExecute('''UPDATE inbox set read = ? WHERE msgid=?''', readStatus, msgid)
shared.UISignalQueue.put(('changedInboxUnread', None))
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, received, message, encodingtype, read FROM inbox WHERE msgid=?''', msgid)
data = '{"inboxMessage":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, received, message, encodingtype, read = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'receivedTime':received, 'read': read}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getAllSentMessages':
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, lastactiontime, message, encodingtype, status, ackdata FROM sent where folder='sent' ORDER BY lastactiontime''')
data = '{"sentMessages":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, lastactiontime, message, encodingtype, status, ackdata = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
if len(data) > 25:
data += ','
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'lastActionTime':lastactiontime, 'status':status, 'ackData':ackdata.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getAllSentMessageIds' or method == 'getAllSentMessageIDs':
queryreturn = sqlQuery('''SELECT msgid FROM sent where folder='sent' ORDER BY lastactiontime''')
data = '{"sentMessageIds":['
for row in queryreturn:
msgid = row[0]
if len(data) > 25:
data += ','
data += json.dumps({'msgid':msgid.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getInboxMessagesByReceiver' or method == 'getInboxMessagesByAddress': #after some time getInboxMessagesByAddress should be removed
if len(params) == 0:
raise APIError(0, 'I need parameters!')
toAddress = params[0]
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, received, message, encodingtype FROM inbox WHERE folder='inbox' AND toAddress=?''', toAddress)
data = '{"inboxMessages":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, received, message, encodingtype = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
if len(data) > 25:
data += ','
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'receivedTime':received}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getSentMessageById' or method == 'getSentMessageByID':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
msgid = self._decode(params[0], "hex")
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, lastactiontime, message, encodingtype, status, ackdata FROM sent WHERE msgid=?''', msgid)
data = '{"sentMessage":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, lastactiontime, message, encodingtype, status, ackdata = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'lastActionTime':lastactiontime, 'status':status, 'ackData':ackdata.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getSentMessagesByAddress' or method == 'getSentMessagesBySender':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
fromAddress = params[0]
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, lastactiontime, message, encodingtype, status, ackdata FROM sent WHERE folder='sent' AND fromAddress=? ORDER BY lastactiontime''',
fromAddress)
data = '{"sentMessages":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, lastactiontime, message, encodingtype, status, ackdata = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
if len(data) > 25:
data += ','
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'lastActionTime':lastactiontime, 'status':status, 'ackData':ackdata.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getSentMessageByAckData':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
ackData = self._decode(params[0], "hex")
queryreturn = sqlQuery('''SELECT msgid, toaddress, fromaddress, subject, lastactiontime, message, encodingtype, status, ackdata FROM sent WHERE ackdata=?''',
ackData)
data = '{"sentMessage":['
for row in queryreturn:
msgid, toAddress, fromAddress, subject, lastactiontime, message, encodingtype, status, ackdata = row
subject = shared.fixPotentiallyInvalidUTF8Data(subject)
message = shared.fixPotentiallyInvalidUTF8Data(message)
data += json.dumps({'msgid':msgid.encode('hex'), 'toAddress':toAddress, 'fromAddress':fromAddress, 'subject':subject.encode('base64'), 'message':message.encode('base64'), 'encodingType':encodingtype, 'lastActionTime':lastactiontime, 'status':status, 'ackData':ackdata.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'trashMessage':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
msgid = self._decode(params[0], "hex")
# Trash if in inbox table
helper_inbox.trash(msgid)
# Trash if in sent table
sqlExecute('''UPDATE sent SET folder='trash' WHERE msgid=?''', msgid)
return 'Trashed message (assuming message existed).'
elif method == 'trashInboxMessage':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
msgid = self._decode(params[0], "hex")
helper_inbox.trash(msgid)
return 'Trashed inbox message (assuming message existed).'
elif method == 'trashSentMessage':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
msgid = self._decode(params[0], "hex")
sqlExecute('''UPDATE sent SET folder='trash' WHERE msgid=?''', msgid)
return 'Trashed sent message (assuming message existed).'
elif method == 'trashSentMessageByAckData':
# This API method should only be used when msgid is not available
if len(params) == 0:
raise APIError(0, 'I need parameters!')
ackdata = self._decode(params[0], "hex")
sqlExecute('''UPDATE sent SET folder='trash' WHERE ackdata=?''',
ackdata)
return 'Trashed sent message (assuming message existed).'
elif method == 'sendMessage':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
elif len(params) == 4:
toAddress, fromAddress, subject, message = params
encodingType = 2
elif len(params) == 5:
toAddress, fromAddress, subject, message, encodingType = params
if encodingType != 2:
raise APIError(6, 'The encoding type must be 2 because that is the only one this program currently supports.')
subject = self._decode(subject, "base64")
message = self._decode(message, "base64")
toAddress = addBMIfNotPresent(toAddress)
fromAddress = addBMIfNotPresent(fromAddress)
status, addressVersionNumber, streamNumber, toRipe = self._verifyAddress(toAddress)
self._verifyAddress(fromAddress)
try:
fromAddressEnabled = shared.config.getboolean(
fromAddress, 'enabled')
except:
raise APIError(13, 'Could not find your fromAddress in the keys.dat file.')
if not fromAddressEnabled:
raise APIError(14, 'Your fromAddress is disabled. Cannot send.')
ackdata = OpenSSL.rand(32)
t = ('', toAddress, toRipe, fromAddress, subject, message, ackdata, int(
time.time()), 'msgqueued', 1, 1, 'sent', 2)
helper_sent.insert(t)
toLabel = ''
queryreturn = sqlQuery('''select label from addressbook where address=?''', toAddress)
if queryreturn != []:
for row in queryreturn:
toLabel, = row
# apiSignalQueue.put(('displayNewSentMessage',(toAddress,toLabel,fromAddress,subject,message,ackdata)))
shared.UISignalQueue.put(('displayNewSentMessage', (
toAddress, toLabel, fromAddress, subject, message, ackdata)))
shared.workerQueue.put(('sendmessage', toAddress))
return ackdata.encode('hex')
elif method == 'sendBroadcast':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
if len(params) == 3:
fromAddress, subject, message = params
encodingType = 2
elif len(params) == 4:
fromAddress, subject, message, encodingType = params
if encodingType != 2:
raise APIError(6, 'The encoding type must be 2 because that is the only one this program currently supports.')
subject = self._decode(subject, "base64")
message = self._decode(message, "base64")
fromAddress = addBMIfNotPresent(fromAddress)
self._verifyAddress(fromAddress)
try:
fromAddressEnabled = shared.config.getboolean(
fromAddress, 'enabled')
except:
raise APIError(13, 'could not find your fromAddress in the keys.dat file.')
ackdata = OpenSSL.rand(32)
toAddress = '[Broadcast subscribers]'
ripe = ''
t = ('', toAddress, ripe, fromAddress, subject, message, ackdata, int(
time.time()), 'broadcastqueued', 1, 1, 'sent', 2)
helper_sent.insert(t)
toLabel = '[Broadcast subscribers]'
shared.UISignalQueue.put(('displayNewSentMessage', (
toAddress, toLabel, fromAddress, subject, message, ackdata)))
shared.workerQueue.put(('sendbroadcast', ''))
return ackdata.encode('hex')
elif method == 'getStatus':
if len(params) != 1:
raise APIError(0, 'I need one parameter!')
ackdata, = params
if len(ackdata) != 64:
raise APIError(15, 'The length of ackData should be 32 bytes (encoded in hex thus 64 characters).')
ackdata = self._decode(ackdata, "hex")
queryreturn = sqlQuery(
'''SELECT status FROM sent where ackdata=?''',
ackdata)
if queryreturn == []:
return 'notfound'
for row in queryreturn:
status, = row
return status
elif method == 'addSubscription':
if len(params) == 0:
raise APIError(0, 'I need parameters!')
if len(params) == 1:
address, = params
label = ''
if len(params) == 2:
address, label = params
label = self._decode(label, "base64")
try:
unicode(label, 'utf-8')
except:
raise APIError(17, 'Label is not valid UTF-8 data.')
if len(params) > 2:
raise APIError(0, 'I need either 1 or 2 parameters!')
address = addBMIfNotPresent(address)
self._verifyAddress(address)
# First we must check to see if the address is already in the
# subscriptions list.
queryreturn = sqlQuery('''select * from subscriptions where address=?''', address)
if queryreturn != []:
raise APIError(16, 'You are already subscribed to that address.')
sqlExecute('''INSERT INTO subscriptions VALUES (?,?,?)''',label, address, True)
shared.reloadBroadcastSendersForWhichImWatching()
shared.UISignalQueue.put(('rerenderInboxFromLabels', ''))
shared.UISignalQueue.put(('rerenderSubscriptions', ''))
return 'Added subscription.'
elif method == 'deleteSubscription':
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
address, = params
address = addBMIfNotPresent(address)
sqlExecute('''DELETE FROM subscriptions WHERE address=?''', address)
shared.reloadBroadcastSendersForWhichImWatching()
shared.UISignalQueue.put(('rerenderInboxFromLabels', ''))
shared.UISignalQueue.put(('rerenderSubscriptions', ''))
return 'Deleted subscription if it existed.'
elif method == 'listSubscriptions':
queryreturn = sqlQuery('''SELECT label, address, enabled FROM subscriptions''')
data = '{"subscriptions":['
for row in queryreturn:
label, address, enabled = row
label = shared.fixPotentiallyInvalidUTF8Data(label)
if len(data) > 20:
data += ','
data += json.dumps({'label':label.encode('base64'), 'address': address, 'enabled': enabled == 1}, indent=4, separators=(',',': '))
data += ']}'
return data
elif method == 'disseminatePreEncryptedMsg':
# The device issuing this command to PyBitmessage supplies a msg object that has
# already been encrypted but which still needs the POW to be done. PyBitmessage
# accepts this msg object and sends it out to the rest of the Bitmessage network
# as if it had generated the message itself. Please do not yet add this to the
# api doc.
if len(params) != 3:
raise APIError(0, 'I need 3 parameter!')
encryptedPayload, requiredAverageProofOfWorkNonceTrialsPerByte, requiredPayloadLengthExtraBytes = params
encryptedPayload = self._decode(encryptedPayload, "hex")
# Let us do the POW and attach it to the front
target = 2**64 / ((len(encryptedPayload)+requiredPayloadLengthExtraBytes+8) * requiredAverageProofOfWorkNonceTrialsPerByte)
with shared.printLock:
print '(For msg message via API) Doing proof of work. Total required difficulty:', float(requiredAverageProofOfWorkNonceTrialsPerByte) / shared.networkDefaultProofOfWorkNonceTrialsPerByte, 'Required small message difficulty:', float(requiredPayloadLengthExtraBytes) / shared.networkDefaultPayloadLengthExtraBytes
powStartTime = time.time()
initialHash = hashlib.sha512(encryptedPayload).digest()
trialValue, nonce = proofofwork.run(target, initialHash)
with shared.printLock:
print '(For msg message via API) 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
encryptedPayload = pack('>Q', nonce) + encryptedPayload
toStreamNumber = decodeVarint(encryptedPayload[16:26])[0]
inventoryHash = calculateInventoryHash(encryptedPayload)
objectType = 'msg'
shared.inventory[inventoryHash] = (
objectType, toStreamNumber, encryptedPayload, int(time.time()),'')
shared.inventorySets[toStreamNumber].add(inventoryHash)
with shared.printLock:
print 'Broadcasting inv for msg(API disseminatePreEncryptedMsg command):', inventoryHash.encode('hex')
shared.broadcastToSendDataQueues((
toStreamNumber, 'advertiseobject', inventoryHash))
elif method == 'disseminatePubkey':
# The device issuing this command to PyBitmessage supplies a pubkey object to be
# disseminated to the rest of the Bitmessage network. PyBitmessage accepts this
# pubkey object and sends it out to the rest of the Bitmessage network as if it
# had generated the pubkey object itself. Please do not yet add this to the api
# doc.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
payload, = params
payload = self._decode(payload, "hex")
# Let us do the POW
target = 2 ** 64 / ((len(payload) + shared.networkDefaultPayloadLengthExtraBytes +
8) * shared.networkDefaultProofOfWorkNonceTrialsPerByte)
print '(For pubkey message via API) Doing proof of work...'
initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash)
print '(For pubkey message via API) Found proof of work', trialValue, 'Nonce:', nonce
payload = pack('>Q', nonce) + payload
pubkeyReadPosition = 8 # bypass the nonce
if payload[pubkeyReadPosition:pubkeyReadPosition+4] == '\x00\x00\x00\x00': # if this pubkey uses 8 byte time
pubkeyReadPosition += 8
else:
pubkeyReadPosition += 4
addressVersion, addressVersionLength = decodeVarint(payload[pubkeyReadPosition:pubkeyReadPosition+10])
pubkeyReadPosition += addressVersionLength
pubkeyStreamNumber = decodeVarint(payload[pubkeyReadPosition:pubkeyReadPosition+10])[0]
inventoryHash = calculateInventoryHash(payload)
objectType = 'pubkey'
#todo: support v4 pubkeys
shared.inventory[inventoryHash] = (
objectType, pubkeyStreamNumber, payload, int(time.time()),'')
shared.inventorySets[pubkeyStreamNumber].add(inventoryHash)
with shared.printLock:
print 'broadcasting inv within API command disseminatePubkey with hash:', inventoryHash.encode('hex')
shared.broadcastToSendDataQueues((
streamNumber, 'advertiseobject', inventoryHash))
elif method == 'getMessageDataByDestinationHash' or method == 'getMessageDataByDestinationTag':
# Method will eventually be used by a particular Android app to
# select relevant messages. Do not yet add this to the api
# doc.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
requestedHash, = params
if len(requestedHash) != 32:
raise APIError(19, 'The length of hash should be 32 bytes (encoded in hex thus 64 characters).')
requestedHash = self._decode(requestedHash, "hex")
# This is not a particularly commonly used API function. Before we
# use it we'll need to fill out a field in our inventory database
# which is blank by default (first20bytesofencryptedmessage).
queryreturn = sqlQuery(
'''SELECT hash, payload FROM inventory WHERE tag = '' and objecttype = 'msg' ; ''')
with SqlBulkExecute() as sql:
for row in queryreturn:
hash01, payload = row
readPosition = 16 # Nonce length + time length
readPosition += decodeVarint(payload[readPosition:readPosition+10])[1] # Stream Number length
t = (payload[readPosition:readPosition+32],hash01)
sql.execute('''UPDATE inventory SET tag=? WHERE hash=?; ''', *t)
queryreturn = sqlQuery('''SELECT payload FROM inventory WHERE tag = ?''',
requestedHash)
data = '{"receivedMessageDatas":['
for row in queryreturn:
payload, = row
if len(data) > 25:
data += ','
data += json.dumps({'data':payload.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'getPubkeyByHash':
# Method will eventually be used by a particular Android app to
# retrieve pubkeys. Please do not yet add this to the api docs.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
requestedHash, = params
if len(requestedHash) != 40:
raise APIError(19, 'The length of hash should be 20 bytes (encoded in hex thus 40 characters).')
requestedHash = self._decode(requestedHash, "hex")
queryreturn = sqlQuery('''SELECT transmitdata FROM pubkeys WHERE hash = ? ; ''', requestedHash)
data = '{"pubkey":['
for row in queryreturn:
transmitdata, = row
data += json.dumps({'data':transmitdata.encode('hex')}, indent=4, separators=(',', ': '))
data += ']}'
return data
elif method == 'clientStatus':
if len(shared.connectedHostsList) == 0:
networkStatus = 'notConnected'
elif len(shared.connectedHostsList) > 0 and not shared.clientHasReceivedIncomingConnections:
networkStatus = 'connectedButHaveNotReceivedIncomingConnections'
else:
networkStatus = 'connectedAndReceivingIncomingConnections'
return json.dumps({'networkConnections':len(shared.connectedHostsList),'numberOfMessagesProcessed':shared.numberOfMessagesProcessed, 'numberOfBroadcastsProcessed':shared.numberOfBroadcastsProcessed, 'numberOfPubkeysProcessed':shared.numberOfPubkeysProcessed, 'networkStatus':networkStatus, 'softwareName':'PyBitmessage','softwareVersion':shared.softwareVersion}, indent=4, separators=(',', ': '))
elif method == 'decodeAddress':
# Return a meaningful decoding of an address.
if len(params) != 1:
raise APIError(0, 'I need 1 parameter!')
address, = params
status, addressVersion, streamNumber, ripe = decodeAddress(address)
return json.dumps({'status':status, 'addressVersion':addressVersion,
'streamNumber':streamNumber, 'ripe':ripe.encode('base64')}, indent=4,
separators=(',', ': '))
else:
raise APIError(20, 'Invalid method: %s' % method)
def recversion(self, data):
if len(data) < 83:
# This version message is unreasonably short. Forget it.
return
if self.verackSent:
"""
We must have already processed the remote node's version message.
There might be a time in the future when we Do want to process
a new version message, like if the remote node wants to update
the streams in which they are interested. But for now we'll
ignore this version message
"""
return
self.remoteProtocolVersion, = unpack('>L', data[:4])
self.services, = unpack('>q', data[4:12])
timestamp, = unpack('>Q', data[12:20])
self.timeOffset = timestamp - int(time.time())
self.myExternalIP = socket.inet_ntoa(data[40:44])
# print 'myExternalIP', self.myExternalIP
self.remoteNodeIncomingPort, = unpack('>H', data[70:72])
# print 'remoteNodeIncomingPort', self.remoteNodeIncomingPort
useragentLength, lengthOfUseragentVarint = decodeVarint(
data[80:84])
readPosition = 80 + lengthOfUseragentVarint
self.userAgent = data[readPosition:readPosition + useragentLength]
readPosition += useragentLength
numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint(
data[readPosition:])
readPosition += lengthOfNumberOfStreamsInVersionMessage
self.remoteStreams = []
for i in xrange(numberOfStreamsInVersionMessage):
newStreamNumber, lengthOfRemoteStreamNumber = decodeVarint(data[readPosition:])
readPosition += lengthOfRemoteStreamNumber
self.remoteStreams.append(newStreamNumber)
logger.debug('Remote node useragent: %s, streams: (%s), time offset: %is.',
self.userAgent, ', '.join(str(x) for x in self.remoteStreams), self.timeOffset)
# find shared streams
self.streamNumber = sorted(set(state.streamsInWhichIAmParticipating).intersection(self.remoteStreams))
self.remoteNodeId, = unpack('>Q', data[72:80])
if not self.validatePeer():
time.sleep(2)
self.sendDataThreadQueue.put((0, 'shutdown','no data'))
self.checkTimeOffsetNotification()
return
shared.connectedHostsList[
self.hostIdent] = 1 # We use this data structure to not only keep track of what hosts we are connected to so that we don't try to connect to them again, but also to list the connections count on the Network Status tab.
self.sendDataThreadQueue.put((0, 'setStreamNumber', self.remoteStreams))
# The other peer's protocol version is of interest to the sendDataThread but we learn of it
# in this version message. Let us inform the sendDataThread.
self.sendDataThreadQueue.put((0, 'setRemoteProtocolVersion', self.remoteProtocolVersion))
if not isHostInPrivateIPRange(self.peer.host):
with knownnodes.knownNodesLock:
for stream in self.remoteStreams:
knownnodes.knownNodes[stream][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] = int(time.time())
if not self.initiatedConnection:
# bootstrap provider?
if BMConfigParser().safeGetInt('bitmessagesettings', 'maxoutboundconnections') >= \
BMConfigParser().safeGetInt('bitmessagesettings', 'maxtotalconnections', 200):
knownnodes.knownNodes[stream][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] -= 10800 # penalise inbound, 3 hours
else:
knownnodes.knownNodes[stream][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] -= 7200 # penalise inbound, 2 hours
shared.needToWriteKnownNodesToDisk = True
self.sendverack()
if self.initiatedConnection == False:
self.sendversion()
def unpack_binary(data, blockchain, time_data, dont_check):
"""
Unpacks the following values from a binary string: question, answers, addresses, public_keys
Variables blockchain, time_data, and dont_check must be provided for the constructor.
"""
read_pos = 0
question_len, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
question = data[read_pos:read_pos + question_len]
read_pos += question_len
answer_count, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
answers = []
for _ in range(answer_count):
answer_len, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
answer = data[read_pos:read_pos + answer_len]
read_pos += answer_len
answers.append(answer)
address_count, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
addresses = []
for _ in range(address_count):
address_len, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
address = data[read_pos:read_pos + address_len]
read_pos += address_len
addresses.append(address)
public_key_count, offset = decodeVarint(data[read_pos:read_pos + 10])
read_pos += offset
public_keys = []
for _ in range(public_key_count):
signing_pubkey_len, offset = decodeVarint(data[read_pos:read_pos +
10])
read_pos += offset
if signing_pubkey_len == 0:
signing_pubkey = None
else:
signing_pubkey = data[read_pos:read_pos + signing_pubkey_len]
read_pos += signing_pubkey_len
encryption_pubkey_len, offset = decodeVarint(
data[read_pos:read_pos + 10])
read_pos += offset
if encryption_pubkey_len == 0:
encryption_pubkey = None
else:
encryption_pubkey = data[read_pos:read_pos +
encryption_pubkey_len]
read_pos += encryption_pubkey_len
pubkey = (signing_pubkey, encryption_pubkey)
public_keys.append(pubkey)
return VotingData(blockchain, time_data, question, answers, addresses,
public_keys, dont_check)
def processpubkey(self, data):
pubkeyProcessingStartTime = time.time()
shared.numberOfPubkeysProcessed += 1
queues.UISignalQueue.put((
'updateNumberOfPubkeysProcessed', 'no data'))
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
if addressVersion == 0:
logger.debug('(Within processpubkey) addressVersion of 0 doesn\'t make sense.')
return
if addressVersion > 4 or addressVersion == 1:
logger.info('This version of Bitmessage cannot handle version %s addresses.' % addressVersion)
return
if addressVersion == 2:
if len(data) < 146: # sanity check. This is the minimum possible length.
logger.debug('(within processpubkey) payloadLength less than 146. Sanity check failed.')
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = data[readPosition:readPosition + 64]
# Is it possible for a public key to be invalid such that trying to
# encrypt or sign with it will cause an error? If it is, it would
# be easiest to test them here.
readPosition += 64
publicEncryptionKey = data[readPosition:readPosition + 64]
if len(publicEncryptionKey) < 64:
logger.debug('publicEncryptionKey length less than 64. Sanity check failed.')
return
readPosition += 64
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
sha = hashlib.new('sha512')
sha.update(
'\x04' + publicSigningKey + '\x04' + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.debug('within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' % (addressVersion,
streamNumber,
hexlify(ripe),
hexlify(publicSigningKey),
hexlify(publicEncryptionKey)
)
)
address = encodeAddress(addressVersion, streamNumber, ripe)
queryreturn = sqlQuery(
'''SELECT usedpersonally FROM pubkeys WHERE address=? AND usedpersonally='yes' ''', address)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info('We HAVE used this pubkey personally. Updating time.')
t = (address, addressVersion, dataToStore, int(time.time()), 'yes')
else:
logger.info('We have NOT used this pubkey personally. Inserting in database.')
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(address)
if addressVersion == 3:
if len(data) < 170: # sanity check.
logger.warning('(within processpubkey) payloadLength less than 170. Sanity check failed.')
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
publicEncryptionKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
endOfSignedDataPosition = readPosition
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
signatureLength, signatureLengthLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = data[readPosition:readPosition + signatureLength]
if highlevelcrypto.verify(data[8:endOfSignedDataPosition], signature, hexlify(publicSigningKey)):
logger.debug('ECDSA verify passed (within processpubkey)')
else:
logger.warning('ECDSA verify failed (within processpubkey)')
return
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.debug('within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' % (addressVersion,
streamNumber,
hexlify(ripe),
hexlify(publicSigningKey),
hexlify(publicEncryptionKey)
)
)
address = encodeAddress(addressVersion, streamNumber, ripe)
queryreturn = sqlQuery('''SELECT usedpersonally FROM pubkeys WHERE address=? AND usedpersonally='yes' ''', address)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info('We HAVE used this pubkey personally. Updating time.')
t = (address, addressVersion, dataToStore, int(time.time()), 'yes')
else:
logger.info('We have NOT used this pubkey personally. Inserting in database.')
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(address)
if addressVersion == 4:
if len(data) < 350: # sanity check.
logger.debug('(within processpubkey) payloadLength less than 350. Sanity check failed.')
return
tag = data[readPosition:readPosition + 32]
if tag not in state.neededPubkeys:
logger.info('We don\'t need this v4 pubkey. We didn\'t ask for it.')
return
# Let us try to decrypt the pubkey
toAddress, cryptorObject = state.neededPubkeys[tag]
if shared.decryptAndCheckPubkeyPayload(data, toAddress) == 'successful':
# At this point we know that we have been waiting on this pubkey.
# This function will command the workerThread to start work on
# the messages that require it.
self.possibleNewPubkey(toAddress)
# Display timing data
timeRequiredToProcessPubkey = time.time(
) - pubkeyProcessingStartTime
logger.debug('Time required to process this pubkey: %s' % timeRequiredToProcessPubkey)
def processmsg(self, data):
messageProcessingStartTime = time.time()
shared.numberOfMessagesProcessed += 1
queues.UISignalQueue.put((
'updateNumberOfMessagesProcessed', 'no data'))
readPosition = 20 # bypass the nonce, time, and object type
msgVersion, msgVersionLength = decodeVarint(data[readPosition:readPosition + 9])
if msgVersion != 1:
logger.info('Cannot understand message versions other than one. Ignoring message.')
return
readPosition += msgVersionLength
streamNumberAsClaimedByMsg, streamNumberAsClaimedByMsgLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += streamNumberAsClaimedByMsgLength
inventoryHash = calculateInventoryHash(data)
initialDecryptionSuccessful = False
# This is not an acknowledgement bound for me. See if it is a message
# bound for me by trying to decrypt it with my private keys.
for key, cryptorObject in shared.myECCryptorObjects.items():
try:
if initialDecryptionSuccessful: # continue decryption attempts to avoid timing attacks
cryptorObject.decrypt(data[readPosition:])
else:
decryptedData = cryptorObject.decrypt(data[readPosition:])
toRipe = key # This is the RIPE hash of my pubkeys. We need this below to compare to the destination_ripe included in the encrypted data.
initialDecryptionSuccessful = True
logger.info('EC decryption successful using key associated with ripe hash: %s.' % hexlify(key))
except Exception as err:
pass
if not initialDecryptionSuccessful:
# This is not a message bound for me.
logger.info('Length of time program spent failing to decrypt this message: %s seconds.' % (time.time() - messageProcessingStartTime,))
return
# This is a message bound for me.
toAddress = shared.myAddressesByHash[
toRipe] # Look up my address based on the RIPE hash.
readPosition = 0
sendersAddressVersionNumber, sendersAddressVersionNumberLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += sendersAddressVersionNumberLength
if sendersAddressVersionNumber == 0:
logger.info('Cannot understand sendersAddressVersionNumber = 0. Ignoring message.')
return
if sendersAddressVersionNumber > 4:
logger.info('Sender\'s address version number %s not yet supported. Ignoring message.' % sendersAddressVersionNumber)
return
if len(decryptedData) < 170:
logger.info('Length of the unencrypted data is unreasonably short. Sanity check failed. Ignoring message.')
return
sendersStreamNumber, sendersStreamNumberLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
if sendersStreamNumber == 0:
logger.info('sender\'s stream number is 0. Ignoring message.')
return
readPosition += sendersStreamNumberLength
behaviorBitfield = decryptedData[readPosition:readPosition + 4]
readPosition += 4
pubSigningKey = '\x04' + decryptedData[
readPosition:readPosition + 64]
readPosition += 64
pubEncryptionKey = '\x04' + decryptedData[
readPosition:readPosition + 64]
readPosition += 64
if sendersAddressVersionNumber >= 3:
requiredAverageProofOfWorkNonceTrialsPerByte, varintLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += varintLength
logger.info('sender\'s requiredAverageProofOfWorkNonceTrialsPerByte is %s' % requiredAverageProofOfWorkNonceTrialsPerByte)
requiredPayloadLengthExtraBytes, varintLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += varintLength
logger.info('sender\'s requiredPayloadLengthExtraBytes is %s' % requiredPayloadLengthExtraBytes)
endOfThePublicKeyPosition = readPosition # needed for when we store the pubkey in our database of pubkeys for later use.
if toRipe != decryptedData[readPosition:readPosition + 20]:
logger.info('The original sender of this message did not send it to you. Someone is attempting a Surreptitious Forwarding Attack.\n\
See: http://world.std.com/~dtd/sign_encrypt/sign_encrypt7.html \n\
your toRipe: %s\n\
embedded destination toRipe: %s' % (hexlify(toRipe), hexlify(decryptedData[readPosition:readPosition + 20]))
)
return
readPosition += 20
messageEncodingType, messageEncodingTypeLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += messageEncodingTypeLength
messageLength, messageLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += messageLengthLength
message = decryptedData[readPosition:readPosition + messageLength]
# print 'First 150 characters of message:', repr(message[:150])
readPosition += messageLength
ackLength, ackLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += ackLengthLength
ackData = decryptedData[readPosition:readPosition + ackLength]
readPosition += ackLength
positionOfBottomOfAckData = readPosition # needed to mark the end of what is covered by the signature
signatureLength, signatureLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = decryptedData[
readPosition:readPosition + signatureLength]
signedData = data[8:20] + encodeVarint(1) + encodeVarint(streamNumberAsClaimedByMsg) + decryptedData[:positionOfBottomOfAckData]
if not highlevelcrypto.verify(signedData, signature, hexlify(pubSigningKey)):
logger.debug('ECDSA verify failed')
return
logger.debug('ECDSA verify passed')
sigHash = hashlib.sha512(hashlib.sha512(signature).digest()).digest()[32:] # Used to detect and ignore duplicate messages in our inbox
# calculate the fromRipe.
sha = hashlib.new('sha512')
sha.update(pubSigningKey + pubEncryptionKey)
ripe = hashlib.new('ripemd160')
ripe.update(sha.digest())
fromAddress = encodeAddress(
sendersAddressVersionNumber, sendersStreamNumber, ripe.digest())
# Let's store the public key in case we want to reply to this
# person.
sqlExecute(
'''INSERT INTO pubkeys VALUES (?,?,?,?,?)''',
fromAddress,
sendersAddressVersionNumber,
decryptedData[:endOfThePublicKeyPosition],
int(time.time()),
'yes')
# Check to see whether we happen to be awaiting this
# pubkey in order to send a message. If we are, it will do the POW
# and send it.
self.possibleNewPubkey(fromAddress)
# If this message is bound for one of my version 3 addresses (or
# higher), then we must check to make sure it meets our demanded
# proof of work requirement. If this is bound for one of my chan
# addresses then we skip this check; the minimum network POW is
# fine.
if decodeAddress(toAddress)[1] >= 3 and not BMConfigParser().safeGetBoolean(toAddress, 'chan'): # If the toAddress version number is 3 or higher and not one of my chan addresses:
if not shared.isAddressInMyAddressBookSubscriptionsListOrWhitelist(fromAddress): # If I'm not friendly with this person:
requiredNonceTrialsPerByte = BMConfigParser().getint(
toAddress, 'noncetrialsperbyte')
requiredPayloadLengthExtraBytes = BMConfigParser().getint(
toAddress, 'payloadlengthextrabytes')
if not protocol.isProofOfWorkSufficient(data, requiredNonceTrialsPerByte, requiredPayloadLengthExtraBytes):
logger.info('Proof of work in msg is insufficient only because it does not meet our higher requirement.')
return
blockMessage = False # Gets set to True if the user shouldn't see the message according to black or white lists.
if BMConfigParser().get('bitmessagesettings', 'blackwhitelist') == 'black': # If we are using a blacklist
queryreturn = sqlQuery(
'''SELECT label FROM blacklist where address=? and enabled='1' ''',
fromAddress)
if queryreturn != []:
logger.info('Message ignored because address is in blacklist.')
blockMessage = True
else: # We're using a whitelist
queryreturn = sqlQuery(
'''SELECT label FROM whitelist where address=? and enabled='1' ''',
fromAddress)
if queryreturn == []:
logger.info('Message ignored because address not in whitelist.')
blockMessage = True
toLabel = BMConfigParser().get(toAddress, 'label')
if toLabel == '':
toLabel = toAddress
decodedMessage = helper_msgcoding.MsgDecode(messageEncodingType, message)
subject = decodedMessage.subject
body = decodedMessage.body
# Let us make sure that we haven't already received this message
if helper_inbox.isMessageAlreadyInInbox(sigHash):
logger.info('This msg is already in our inbox. Ignoring it.')
blockMessage = True
if not blockMessage:
if messageEncodingType != 0:
t = (inventoryHash, toAddress, fromAddress, subject, int(
time.time()), body, 'inbox', messageEncodingType, 0, sigHash)
helper_inbox.insert(t)
queues.UISignalQueue.put(('displayNewInboxMessage', (
inventoryHash, toAddress, fromAddress, subject, body)))
# If we are behaving as an API then we might need to run an
# outside command to let some program know that a new message
# has arrived.
if BMConfigParser().safeGetBoolean('bitmessagesettings', 'apienabled'):
try:
apiNotifyPath = BMConfigParser().get(
'bitmessagesettings', 'apinotifypath')
except:
apiNotifyPath = ''
if apiNotifyPath != '':
call([apiNotifyPath, "newMessage"])
# Let us now check and see whether our receiving address is
# behaving as a mailing list
if BMConfigParser().safeGetBoolean(toAddress, 'mailinglist') and messageEncodingType != 0:
try:
mailingListName = BMConfigParser().get(
toAddress, 'mailinglistname')
except:
mailingListName = ''
# Let us send out this message as a broadcast
subject = self.addMailingListNameToSubject(
subject, mailingListName)
# Let us now send this message out as a broadcast
message = time.strftime("%a, %Y-%m-%d %H:%M:%S UTC", time.gmtime(
)) + ' Message ostensibly from ' + fromAddress + ':\n\n' + body
fromAddress = toAddress # The fromAddress for the broadcast that we are about to send is the toAddress (my address) for the msg message we are currently processing.
ackdataForBroadcast = OpenSSL.rand(
32) # We don't actually need the ackdataForBroadcast for acknowledgement since this is a broadcast message but we can use it to update the user interface when the POW is done generating.
toAddress = '[Broadcast subscribers]'
ripe = ''
# We really should have a discussion about how to
# set the TTL for mailing list broadcasts. This is obviously
# hard-coded.
TTL = 2*7*24*60*60 # 2 weeks
t = ('',
toAddress,
ripe,
fromAddress,
subject,
message,
ackdataForBroadcast,
int(time.time()), # sentTime (this doesn't change)
int(time.time()), # lastActionTime
0,
'broadcastqueued',
0,
'sent',
messageEncodingType,
TTL)
helper_sent.insert(t)
queues.UISignalQueue.put(('displayNewSentMessage', (
toAddress, '[Broadcast subscribers]', fromAddress, subject, message, ackdataForBroadcast)))
queues.workerQueue.put(('sendbroadcast', ''))
# Don't send ACK if invalid, blacklisted senders, invisible messages, disabled or chan
if self.ackDataHasAValidHeader(ackData) and \
not blockMessage and \
messageEncodingType != 0 and \
not BMConfigParser().safeGetBoolean(toAddress, 'dontsendack') and \
not BMConfigParser().safeGetBoolean(toAddress, 'chan'):
shared.checkAndShareObjectWithPeers(ackData[24:])
# Display timing data
timeRequiredToAttemptToDecryptMessage = time.time(
) - messageProcessingStartTime
shared.successfullyDecryptMessageTimings.append(
timeRequiredToAttemptToDecryptMessage)
sum = 0
for item in shared.successfullyDecryptMessageTimings:
sum += item
logger.debug('Time to decrypt this message successfully: %s\n\
Average time for all message decryption successes since startup: %s.' %
(timeRequiredToAttemptToDecryptMessage, sum / len(shared.successfullyDecryptMessageTimings))
)
def decryptAndCheckPubkeyPayload(data, address):
"""
Version 4 pubkeys are encrypted. This function is run when we already have the
address to which we want to try to send a message. The 'data' may come either
off of the wire or we might have had it already in our inventory when we tried
to send a msg to this particular address.
"""
try:
status, addressVersion, streamNumber, ripe = decodeAddress(address)
readPosition = 20 # bypass the nonce, time, and object type
embeddedAddressVersion, varintLength = decodeVarint(data[readPosition:readPosition + 10])
readPosition += varintLength
embeddedStreamNumber, varintLength = decodeVarint(data[readPosition:readPosition + 10])
readPosition += varintLength
storedData = data[20:readPosition] # We'll store the address version and stream number (and some more) in the pubkeys table.
if addressVersion != embeddedAddressVersion:
logger.info('Pubkey decryption was UNsuccessful due to address version mismatch.')
return 'failed'
if streamNumber != embeddedStreamNumber:
logger.info('Pubkey decryption was UNsuccessful due to stream number mismatch.')
return 'failed'
tag = data[readPosition:readPosition + 32]
readPosition += 32
signedData = data[8:readPosition] # the time through the tag. More data is appended onto signedData below after the decryption.
encryptedData = data[readPosition:]
# Let us try to decrypt the pubkey
toAddress, cryptorObject = state.neededPubkeys[tag]
if toAddress != address:
logger.critical('decryptAndCheckPubkeyPayload failed due to toAddress mismatch. This is very peculiar. toAddress: %s, address %s', toAddress, address)
# the only way I can think that this could happen is if someone encodes their address data two different ways.
# That sort of address-malleability should have been caught by the UI or API and an error given to the user.
return 'failed'
try:
decryptedData = cryptorObject.decrypt(encryptedData)
except:
# Someone must have encrypted some data with a different key
# but tagged it with a tag for which we are watching.
logger.info('Pubkey decryption was unsuccessful.')
return 'failed'
readPosition = 0
bitfieldBehaviors = decryptedData[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + decryptedData[readPosition:readPosition + 64]
readPosition += 64
publicEncryptionKey = '\x04' + decryptedData[readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
storedData += decryptedData[:readPosition]
signedData += decryptedData[:readPosition]
signatureLength, signatureLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = decryptedData[readPosition:readPosition + signatureLength]
if highlevelcrypto.verify(signedData, signature, hexlify(publicSigningKey)):
logger.info('ECDSA verify passed (within decryptAndCheckPubkeyPayload)')
else:
logger.info('ECDSA verify failed (within decryptAndCheckPubkeyPayload)')
return 'failed'
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
embeddedRipe = ripeHasher.digest()
if embeddedRipe != ripe:
# Although this pubkey object had the tag were were looking for and was
# encrypted with the correct encryption key, it doesn't contain the
# correct pubkeys. Someone is either being malicious or using buggy software.
logger.info('Pubkey decryption was UNsuccessful due to RIPE mismatch.')
return 'failed'
# Everything checked out. Insert it into the pubkeys table.
logger.info('within decryptAndCheckPubkeyPayload, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s', addressVersion,
streamNumber,
hexlify(ripe),
hexlify(publicSigningKey),
hexlify(publicEncryptionKey)
)
t = (address, addressVersion, storedData, int(time.time()), 'yes')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
return 'successful'
except varintDecodeError as e:
logger.info('Pubkey decryption was UNsuccessful due to a malformed varint.')
return 'failed'
except Exception as e:
logger.critical('Pubkey decryption was UNsuccessful because of an unhandled exception! This is definitely a bug! \n%s', traceback.format_exc())
return 'failed'
def recaddr(self, data):
if self.addrReceived:
logger.debug('Ignoring extraneous addr (%d bytes)', len(data))
return
self.addrReceived = True
numberOfAddressesIncluded, lengthOfNumberOfAddresses = decodeVarint(
data[:10])
if shared.verbose >= 1:
logger.debug('addr message contains ' + str(numberOfAddressesIncluded) + ' IP addresses.')
if numberOfAddressesIncluded > 1000 or numberOfAddressesIncluded == 0:
return
if len(data) != lengthOfNumberOfAddresses + (38 * numberOfAddressesIncluded):
logger.debug('addr message does not contain the correct amount of data. Ignoring.')
return
for i in xrange(0, numberOfAddressesIncluded):
fullHost = data[20 + lengthOfNumberOfAddresses + (38 * i):36 + lengthOfNumberOfAddresses + (38 * i)]
recaddrStream, = unpack('>I', data[8 + lengthOfNumberOfAddresses + (
38 * i):12 + lengthOfNumberOfAddresses + (38 * i)])
if recaddrStream == 0:
continue
if recaddrStream not in self.streamNumber and (recaddrStream / 2) not in self.streamNumber: # if the embedded stream number and its parent are not in my streams then ignore it. Someone might be trying funny business.
continue
recaddrServices, = unpack('>Q', data[12 + lengthOfNumberOfAddresses + (
38 * i):20 + lengthOfNumberOfAddresses + (38 * i)])
recaddrPort, = unpack('>H', data[36 + lengthOfNumberOfAddresses + (
38 * i):38 + lengthOfNumberOfAddresses + (38 * i)])
hostStandardFormat = self._checkIPAddress(fullHost)
if hostStandardFormat is False:
continue
if recaddrPort == 0:
continue
timeSomeoneElseReceivedMessageFromThisNode, = unpack('>Q', data[lengthOfNumberOfAddresses + (
38 * i):8 + lengthOfNumberOfAddresses + (38 * i)]) # This is the 'time' value in the received addr message. 64-bit.
if recaddrStream not in knownnodes.knownNodes: # knownNodes is a dictionary of dictionaries with one outer dictionary for each stream. If the outer stream dictionary doesn't exist yet then we must make it.
with knownnodes.knownNodesLock:
knownnodes.knownNodes[recaddrStream] = {}
peerFromAddrMessage = state.Peer(hostStandardFormat, recaddrPort)
if peerFromAddrMessage not in knownnodes.knownNodes[recaddrStream]:
# only if recent
if timeSomeoneElseReceivedMessageFromThisNode > (int(time.time()) - 10800) and timeSomeoneElseReceivedMessageFromThisNode < (int(time.time()) + 10800):
# bootstrap provider?
if BMConfigParser().safeGetInt('bitmessagesettings', 'maxoutboundconnections') >= \
BMConfigParser().safeGetInt('bitmessagesettings', 'maxtotalconnections', 200):
knownnodes.trimKnownNodes(recaddrStream)
with knownnodes.knownNodesLock:
knownnodes.knownNodes[recaddrStream][peerFromAddrMessage] = int(time.time()) - 86400 # penalise initially by 1 day
logger.debug('added new node ' + str(peerFromAddrMessage) + ' to knownNodes in stream ' + str(recaddrStream))
shared.needToWriteKnownNodesToDisk = True
# normal mode
elif len(knownnodes.knownNodes[recaddrStream]) < 20000:
with knownnodes.knownNodesLock:
knownnodes.knownNodes[recaddrStream][peerFromAddrMessage] = timeSomeoneElseReceivedMessageFromThisNode
logger.debug('added new node ' + str(peerFromAddrMessage) + ' to knownNodes in stream ' + str(recaddrStream))
shared.needToWriteKnownNodesToDisk = True
# only update if normal mode
elif BMConfigParser().safeGetInt('bitmessagesettings', 'maxoutboundconnections') < \
BMConfigParser().safeGetInt('bitmessagesettings', 'maxtotalconnections', 200):
timeLastReceivedMessageFromThisNode = knownnodes.knownNodes[recaddrStream][
peerFromAddrMessage]
if (timeLastReceivedMessageFromThisNode < timeSomeoneElseReceivedMessageFromThisNode) and (timeSomeoneElseReceivedMessageFromThisNode < int(time.time())+900): # 900 seconds for wiggle-room in case other nodes' clocks aren't quite right.
with knownnodes.knownNodesLock:
knownnodes.knownNodes[recaddrStream][peerFromAddrMessage] = timeSomeoneElseReceivedMessageFromThisNode
for stream in self.streamNumber:
logger.debug('knownNodes currently has %i nodes for stream %i', len(knownnodes.knownNodes[stream]), stream)
def processgetpubkey(self, data):
if len(data) > 200:
logger.info('getpubkey is abnormally long. Sanity check failed. Ignoring object.')
return
readPosition = 20 # bypass the nonce, time, and object type
requestedAddressVersionNumber, addressVersionLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += addressVersionLength
streamNumber, streamNumberLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += streamNumberLength
if requestedAddressVersionNumber == 0:
logger.debug('The requestedAddressVersionNumber of the pubkey request is zero. That doesn\'t make any sense. Ignoring it.')
return
elif requestedAddressVersionNumber == 1:
logger.debug('The requestedAddressVersionNumber of the pubkey request is 1 which isn\'t supported anymore. Ignoring it.')
return
elif requestedAddressVersionNumber > 4:
logger.debug('The requestedAddressVersionNumber of the pubkey request is too high. Can\'t understand. Ignoring it.')
return
myAddress = ''
if requestedAddressVersionNumber <= 3 :
requestedHash = data[readPosition:readPosition + 20]
if len(requestedHash) != 20:
logger.debug('The length of the requested hash is not 20 bytes. Something is wrong. Ignoring.')
return
logger.info('the hash requested in this getpubkey request is: %s' % hexlify(requestedHash))
if requestedHash in shared.myAddressesByHash: # if this address hash is one of mine
myAddress = shared.myAddressesByHash[requestedHash]
elif requestedAddressVersionNumber >= 4:
requestedTag = data[readPosition:readPosition + 32]
if len(requestedTag) != 32:
logger.debug('The length of the requested tag is not 32 bytes. Something is wrong. Ignoring.')
return
logger.debug('the tag requested in this getpubkey request is: %s' % hexlify(requestedTag))
if requestedTag in shared.myAddressesByTag:
myAddress = shared.myAddressesByTag[requestedTag]
if myAddress == '':
logger.info('This getpubkey request is not for any of my keys.')
return
if decodeAddress(myAddress)[1] != requestedAddressVersionNumber:
logger.warning('(Within the processgetpubkey function) Someone requested one of my pubkeys but the requestedAddressVersionNumber doesn\'t match my actual address version number. Ignoring.')
return
if decodeAddress(myAddress)[2] != streamNumber:
logger.warning('(Within the processgetpubkey function) Someone requested one of my pubkeys but the stream number on which we heard this getpubkey object doesn\'t match this address\' stream number. Ignoring.')
return
if BMConfigParser().safeGetBoolean(myAddress, 'chan'):
logger.info('Ignoring getpubkey request because it is for one of my chan addresses. The other party should already have the pubkey.')
return
try:
lastPubkeySendTime = int(BMConfigParser().get(
myAddress, 'lastpubkeysendtime'))
except:
lastPubkeySendTime = 0
if lastPubkeySendTime > time.time() - 2419200: # If the last time we sent our pubkey was more recent than 28 days ago...
logger.info('Found getpubkey-requested-item in my list of EC hashes BUT we already sent it recently. Ignoring request. The lastPubkeySendTime is: %s' % lastPubkeySendTime)
return
logger.info('Found getpubkey-requested-hash in my list of EC hashes. Telling Worker thread to do the POW for a pubkey message and send it out.')
if requestedAddressVersionNumber == 2:
queues.workerQueue.put((
'doPOWForMyV2Pubkey', requestedHash))
elif requestedAddressVersionNumber == 3:
queues.workerQueue.put((
'sendOutOrStoreMyV3Pubkey', requestedHash))
elif requestedAddressVersionNumber == 4:
queues.workerQueue.put((
'sendOutOrStoreMyV4Pubkey', myAddress))
def processbroadcast(self, data):
messageProcessingStartTime = time.time()
shared.numberOfBroadcastsProcessed += 1
queues.UISignalQueue.put((
'updateNumberOfBroadcastsProcessed', 'no data'))
inventoryHash = calculateInventoryHash(data)
readPosition = 20 # bypass the nonce, time, and object type
broadcastVersion, broadcastVersionLength = decodeVarint(
data[readPosition:readPosition + 9])
readPosition += broadcastVersionLength
if broadcastVersion < 4 or broadcastVersion > 5:
logger.info('Cannot decode incoming broadcast versions less than 4 or higher than 5. Assuming the sender isn\'t being silly, you should upgrade Bitmessage because this message shall be ignored.')
return
cleartextStreamNumber, cleartextStreamNumberLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += cleartextStreamNumberLength
if broadcastVersion == 4:
"""
v4 broadcasts are encrypted the same way the msgs are encrypted. To see if we are interested in a
v4 broadcast, we try to decrypt it. This was replaced with v5 broadcasts which include a tag which
we check instead, just like we do with v4 pubkeys.
"""
signedData = data[8:readPosition]
initialDecryptionSuccessful = False
for key, cryptorObject in shared.MyECSubscriptionCryptorObjects.items():
try:
if initialDecryptionSuccessful: # continue decryption attempts to avoid timing attacks
cryptorObject.decrypt(data[readPosition:])
else:
decryptedData = cryptorObject.decrypt(data[readPosition:])
toRipe = key # This is the RIPE hash of the sender's pubkey. We need this below to compare to the RIPE hash of the sender's address to verify that it was encrypted by with their key rather than some other key.
initialDecryptionSuccessful = True
logger.info('EC decryption successful using key associated with ripe hash: %s' % hexlify(key))
except Exception as err:
pass
# print 'cryptorObject.decrypt Exception:', err
if not initialDecryptionSuccessful:
# This is not a broadcast I am interested in.
logger.debug('Length of time program spent failing to decrypt this v4 broadcast: %s seconds.' % (time.time() - messageProcessingStartTime,))
return
elif broadcastVersion == 5:
embeddedTag = data[readPosition:readPosition+32]
readPosition += 32
if embeddedTag not in shared.MyECSubscriptionCryptorObjects:
logger.debug('We\'re not interested in this broadcast.')
return
# We are interested in this broadcast because of its tag.
signedData = data[8:readPosition] # We're going to add some more data which is signed further down.
cryptorObject = shared.MyECSubscriptionCryptorObjects[embeddedTag]
try:
decryptedData = cryptorObject.decrypt(data[readPosition:])
logger.debug('EC decryption successful')
except Exception as err:
logger.debug('Broadcast version %s decryption Unsuccessful.' % broadcastVersion)
return
# At this point this is a broadcast I have decrypted and am
# interested in.
readPosition = 0
sendersAddressVersion, sendersAddressVersionLength = decodeVarint(
decryptedData[readPosition:readPosition + 9])
if broadcastVersion == 4:
if sendersAddressVersion < 2 or sendersAddressVersion > 3:
logger.warning('Cannot decode senderAddressVersion other than 2 or 3. Assuming the sender isn\'t being silly, you should upgrade Bitmessage because this message shall be ignored.')
return
elif broadcastVersion == 5:
if sendersAddressVersion < 4:
logger.info('Cannot decode senderAddressVersion less than 4 for broadcast version number 5. Assuming the sender isn\'t being silly, you should upgrade Bitmessage because this message shall be ignored.')
return
readPosition += sendersAddressVersionLength
sendersStream, sendersStreamLength = decodeVarint(
decryptedData[readPosition:readPosition + 9])
if sendersStream != cleartextStreamNumber:
logger.info('The stream number outside of the encryption on which the POW was completed doesn\'t match the stream number inside the encryption. Ignoring broadcast.')
return
readPosition += sendersStreamLength
behaviorBitfield = decryptedData[readPosition:readPosition + 4]
readPosition += 4
sendersPubSigningKey = '\x04' + \
decryptedData[readPosition:readPosition + 64]
readPosition += 64
sendersPubEncryptionKey = '\x04' + \
decryptedData[readPosition:readPosition + 64]
readPosition += 64
if sendersAddressVersion >= 3:
requiredAverageProofOfWorkNonceTrialsPerByte, varintLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += varintLength
logger.debug('sender\'s requiredAverageProofOfWorkNonceTrialsPerByte is %s' % requiredAverageProofOfWorkNonceTrialsPerByte)
requiredPayloadLengthExtraBytes, varintLength = decodeVarint(
decryptedData[readPosition:readPosition + 10])
readPosition += varintLength
logger.debug('sender\'s requiredPayloadLengthExtraBytes is %s' % requiredPayloadLengthExtraBytes)
endOfPubkeyPosition = readPosition
sha = hashlib.new('sha512')
sha.update(sendersPubSigningKey + sendersPubEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
calculatedRipe = ripeHasher.digest()
if broadcastVersion == 4:
if toRipe != calculatedRipe:
logger.info('The encryption key used to encrypt this message doesn\'t match the keys inbedded in the message itself. Ignoring message.')
return
elif broadcastVersion == 5:
calculatedTag = hashlib.sha512(hashlib.sha512(encodeVarint(
sendersAddressVersion) + encodeVarint(sendersStream) + calculatedRipe).digest()).digest()[32:]
if calculatedTag != embeddedTag:
logger.debug('The tag and encryption key used to encrypt this message doesn\'t match the keys inbedded in the message itself. Ignoring message.')
return
messageEncodingType, messageEncodingTypeLength = decodeVarint(
decryptedData[readPosition:readPosition + 9])
if messageEncodingType == 0:
return
readPosition += messageEncodingTypeLength
messageLength, messageLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 9])
readPosition += messageLengthLength
message = decryptedData[readPosition:readPosition + messageLength]
readPosition += messageLength
readPositionAtBottomOfMessage = readPosition
signatureLength, signatureLengthLength = decodeVarint(
decryptedData[readPosition:readPosition + 9])
readPosition += signatureLengthLength
signature = decryptedData[
readPosition:readPosition + signatureLength]
signedData += decryptedData[:readPositionAtBottomOfMessage]
if not highlevelcrypto.verify(signedData, signature, hexlify(sendersPubSigningKey)):
logger.debug('ECDSA verify failed')
return
logger.debug('ECDSA verify passed')
sigHash = hashlib.sha512(hashlib.sha512(signature).digest()).digest()[32:] # Used to detect and ignore duplicate messages in our inbox
fromAddress = encodeAddress(
sendersAddressVersion, sendersStream, calculatedRipe)
logger.info('fromAddress: %s' % fromAddress)
# Let's store the public key in case we want to reply to this person.
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''',
fromAddress,
sendersAddressVersion,
decryptedData[:endOfPubkeyPosition],
int(time.time()),
'yes')
# Check to see whether we happen to be awaiting this
# pubkey in order to send a message. If we are, it will do the POW
# and send it.
self.possibleNewPubkey(fromAddress)
fromAddress = encodeAddress(
sendersAddressVersion, sendersStream, calculatedRipe)
logger.debug('fromAddress: ' + fromAddress)
decodedMessage = helper_msgcoding.MsgDecode(messageEncodingType, message)
subject = decodedMessage.subject
body = decodedMessage.body
toAddress = '[Broadcast subscribers]'
if helper_inbox.isMessageAlreadyInInbox(sigHash):
logger.info('This broadcast is already in our inbox. Ignoring it.')
return
t = (inventoryHash, toAddress, fromAddress, subject, int(
time.time()), body, 'inbox', messageEncodingType, 0, sigHash)
helper_inbox.insert(t)
queues.UISignalQueue.put(('displayNewInboxMessage', (
inventoryHash, toAddress, fromAddress, subject, body)))
# If we are behaving as an API then we might need to run an
# outside command to let some program know that a new message
# has arrived.
if BMConfigParser().safeGetBoolean('bitmessagesettings', 'apienabled'):
try:
apiNotifyPath = BMConfigParser().get(
'bitmessagesettings', 'apinotifypath')
except:
apiNotifyPath = ''
if apiNotifyPath != '':
call([apiNotifyPath, "newBroadcast"])
# Display timing data
logger.info('Time spent processing this interesting broadcast: %s' % (time.time() - messageProcessingStartTime,))
