Bitmessage/MiNode
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Formatted the code with flake8

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This commit is contained in:
Dmitri Bogomolov 2021-03-08 17:06:07 +02:00
parent 66b0f43f08
commit 3fa84d1f4b
Signed by untrusted user: g1itch
GPG Key ID: 720A756F18DEED13
12 changed files with 456 additions and 216 deletions
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3
minode/advertiser.py
View File

@ -34,7 +34,8 @@ class Advertiser(threading.Thread):
while not shared.address_advertise_queue.empty(): while not shared.address_advertise_queue.empty():
addr = shared.address_advertise_queue.get() addr = shared.address_advertise_queue.get()
if addr.port == 'i2p': if addr.port == 'i2p':
# We should not try to construct Addr messages with I2P destinations (yet) # We should not try to construct Addr messages
# with I2P destinations (yet)
continue continue
addresses_to_advertise.add(addr) addresses_to_advertise.add(addr)
if len(addresses_to_advertise) > 0: if len(addresses_to_advertise) > 0:

211
minode/connection.py
View File

@ -14,7 +14,10 @@ from . import message, shared, structure
class Connection(threading.Thread): class Connection(threading.Thread):
def __init__(self, host, port, s=None, network='ip', server=False, i2p_remote_dest=b''): def __init__(
self, host, port, s=None, network='ip', server=False,
i2p_remote_dest=b''
):
self.host = host self.host = host
self.port = port self.port = port
self.network = network self.network = network
@ -72,7 +75,10 @@ class Connection(threading.Thread):
else: else:
self.send_queue.put(message.Version('127.0.0.1', 7656)) self.send_queue.put(message.Version('127.0.0.1', 7656))
while True: while True:
if self.on_connection_fully_established_scheduled and not (self.buffer_send or self.buffer_receive): if (
self.on_connection_fully_established_scheduled
and not (self.buffer_send or self.buffer_receive)
):
self._on_connection_fully_established() self._on_connection_fully_established()
data = True data = True
try: try:
@ -82,7 +88,8 @@ class Connection(threading.Thread):
if data and len(self.buffer_receive) < 4000000: if data and len(self.buffer_receive) < 4000000:
continue continue
else: else:
data = self.s.recv(self.next_message_size - len(self.buffer_receive)) data = self.s.recv(
self.next_message_size - len(self.buffer_receive))
self.buffer_receive += data self.buffer_receive += data
except ssl.SSLWantReadError: except ssl.SSLWantReadError:
if self.status == 'fully_established': if self.status == 'fully_established':
@ -90,49 +97,68 @@ class Connection(threading.Thread):
self._send_objects() self._send_objects()
except socket.error as e: except socket.error as e:
err = e.args[0] err = e.args[0]
if err == errno.EAGAIN or err == errno.EWOULDBLOCK: if err in (errno.EAGAIN, errno.EWOULDBLOCK):
if self.status == 'fully_established': if self.status == 'fully_established':
self._request_objects() self._request_objects()
self._send_objects() self._send_objects()
else: else:
logging.debug('Disconnecting from {}:{}. Reason: {}'.format(self.host_print, self.port, e)) logging.debug(
'Disconnecting from %s:%s. Reason: %s',
self.host_print, self.port, e)
data = None data = None
except ConnectionResetError: except ConnectionResetError:
logging.debug('Disconnecting from {}:{}. Reason: ConnectionResetError'.format(self.host_print, self.port)) logging.debug(
'Disconnecting from %s:%s. Reason: ConnectionResetError',
self.host_print, self.port)
self.status = 'disconnecting' self.status = 'disconnecting'
self._process_buffer_receive() self._process_buffer_receive()
self._process_queue() self._process_queue()
self._send_data() self._send_data()
if time.time() - self.last_message_received > shared.timeout: if time.time() - self.last_message_received > shared.timeout:
logging.debug( logging.debug(
'Disconnecting from {}:{}. Reason: time.time() - self.last_message_received > shared.timeout'.format( 'Disconnecting from %s:%s. Reason:'
self.host_print, self.port)) ' time.time() - self.last_message_received'
' > shared.timeout', self.host_print, self.port)
self.status = 'disconnecting' self.status = 'disconnecting'
if time.time() - self.last_message_received > 30 and self.status != 'fully_established'and self.status != 'disconnecting': if (
time.time() - self.last_message_received > 30
and self.status != 'fully_established'
and self.status != 'disconnecting'
):
logging.debug( logging.debug(
'Disconnecting from {}:{}. Reason: time.time() - self.last_message_received > 30 and self.status != \'fully_established\''.format( 'Disconnecting from %s:%s. Reason:'
self.host_print, self.port)) ' time.time() - self.last_message_received > 30'
' and self.status != "fully_established"',
self.host_print, self.port)
self.status = 'disconnecting' self.status = 'disconnecting'
if time.time() - self.last_message_sent > 300 and self.status == 'fully_established': if (
time.time() - self.last_message_sent > 300
and self.status == 'fully_established'
):
self.send_queue.put(message.Message(b'pong', b'')) self.send_queue.put(message.Message(b'pong', b''))
if self.status == 'disconnecting' or shared.shutting_down: if self.status == 'disconnecting' or shared.shutting_down:
data = None data = None
if not data: if not data:
self.status = 'disconnected' self.status = 'disconnected'
self.s.close() self.s.close()
logging.info('Disconnected from {}:{}'.format(self.host_print, self.port)) logging.info(
'Disconnected from %s:%s', self.host_print, self.port)
break break
time.sleep(0.2) time.sleep(0.2)
def _connect(self): def _connect(self):
logging.debug('Connecting to {}:{}'.format(self.host_print, self.port)) logging.debug('Connecting to %s:%s', self.host_print, self.port)
try: try:
self.s = socket.create_connection((self.host, self.port), 10) self.s = socket.create_connection((self.host, self.port), 10)
self.status = 'connected' self.status = 'connected'
logging.info('Established TCP connection to {}:{}'.format(self.host_print, self.port)) logging.info(
'Established TCP connection to %s:%s',
self.host_print, self.port)
except Exception as e: except Exception as e:
logging.warning('Connection to {}:{} failed. Reason: {}'.format(self.host_print, self.port, e)) logging.warning(
'Connection to %s:%s failed. Reason: %s',
self.host_print, self.port, e)
self.status = 'failed' self.status = 'failed'
def _send_data(self): def _send_data(self):
@ -142,27 +168,38 @@ class Connection(threading.Thread):
self.buffer_send = self.buffer_send[amount:] self.buffer_send = self.buffer_send[amount:]
except (BlockingIOError, ssl.SSLWantWriteError): except (BlockingIOError, ssl.SSLWantWriteError):
pass pass
except (BrokenPipeError, ConnectionResetError, ssl.SSLError, OSError) as e: except (
logging.debug('Disconnecting from {}:{}. Reason: {}'.format(self.host_print, self.port, e)) BrokenPipeError, ConnectionResetError, ssl.SSLError, OSError
) as e:
logging.debug(
'Disconnecting from %s:%s. Reason: %s',
self.host_print, self.port, e)
self.status = 'disconnecting' self.status = 'disconnecting'
def _do_tls_handshake(self): def _do_tls_handshake(self):
logging.debug('Initializing TLS connection with {}:{}'.format(self.host_print, self.port)) logging.debug(
'Initializing TLS connection with %s:%s',
self.host_print, self.port)
context = ssl.create_default_context() context = ssl.create_default_context()
context.check_hostname = False context.check_hostname = False
context.verify_mode = ssl.CERT_NONE context.verify_mode = ssl.CERT_NONE
if ssl.OPENSSL_VERSION_NUMBER >= 0x10100000 and not ssl.OPENSSL_VERSION.startswith("LibreSSL"): if (
# OpenSSL>=1.1 ssl.OPENSSL_VERSION_NUMBER >= 0x10100000
and not ssl.OPENSSL_VERSION.startswith("LibreSSL")
): # OpenSSL>=1.1
context.set_ciphers('AECDH-AES256-SHA@SECLEVEL=0') context.set_ciphers('AECDH-AES256-SHA@SECLEVEL=0')
else: else:
context.set_ciphers('AECDH-AES256-SHA') context.set_ciphers('AECDH-AES256-SHA')
context.set_ecdh_curve("secp256k1") context.set_ecdh_curve("secp256k1")
context.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3 | ssl.OP_SINGLE_ECDH_USE | ssl.OP_CIPHER_SERVER_PREFERENCE context.options = (
ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3
| ssl.OP_SINGLE_ECDH_USE | ssl.OP_CIPHER_SERVER_PREFERENCE)
self.s = context.wrap_socket(self.s, server_side=self.server, do_handshake_on_connect=False) self.s = context.wrap_socket(
self.s, server_side=self.server, do_handshake_on_connect=False)
while True: while True:
try: try:
@ -173,39 +210,57 @@ class Connection(threading.Thread):
except ssl.SSLWantWriteError: except ssl.SSLWantWriteError:
select.select([], [self.s], []) select.select([], [self.s], [])
except Exception as e: except Exception as e:
logging.debug('Disconnecting from {}:{}. Reason: {}'.format(self.host_print, self.port, e)) logging.debug(
'Disconnecting from %s:%s. Reason: %s',
self.host_print, self.port, e)
self.status = 'disconnecting' self.status = 'disconnecting'
break break
self.tls = True self.tls = True
logging.debug('Established TLS connection with {}:{}'.format(self.host_print, self.port)) logging.debug(
'Established TLS connection with %s:%s',
self.host_print, self.port)
def _send_message(self, m): def _send_message(self, m):
if type(m) == message.Message and m.command == b'object': if isinstance(m, message.Message) and m.command == b'object':
logging.debug('{}:{} <- {}'.format(self.host_print, self.port, structure.Object.from_message(m))) logging.debug(
'%s:%s <- %s',
self.host_print, self.port, structure.Object.from_message(m))
else: else:
logging.debug('{}:{} <- {}'.format(self.host_print, self.port, m)) logging.debug('%s:%s <- %s', self.host_print, self.port, m)
self.buffer_send += m.to_bytes() self.buffer_send += m.to_bytes()
def _on_connection_fully_established(self): def _on_connection_fully_established(self):
logging.info('Established Bitmessage protocol connection to {}:{}'.format(self.host_print, self.port)) logging.info(
'Established Bitmessage protocol connection to %s:%s',
self.host_print, self.port)
self.on_connection_fully_established_scheduled = False self.on_connection_fully_established_scheduled = False
if self.remote_version.services & 2 and self.network == 'ip': # NODE_SSL if self.remote_version.services & 2 and self.network == 'ip':
self._do_tls_handshake() self._do_tls_handshake() # NODE_SSL
addr = {structure.NetAddr(c.remote_version.services, c.host, c.port) for c in shared.connections if c.network != 'i2p' and c.server is False and c.status == 'fully_established'} addr = {
structure.NetAddr(c.remote_version.services, c.host, c.port)
for c in shared.connections if c.network != 'i2p'
and c.server is False and c.status == 'fully_established'}
if len(shared.node_pool) > 10: if len(shared.node_pool) > 10:
addr.update({structure.NetAddr(1, a[0], a[1]) for a in random.sample(shared.node_pool, 10)}) addr.update({
structure.NetAddr(1, a[0], a[1])
for a in random.sample(shared.node_pool, 10)})
if len(shared.unchecked_node_pool) > 10: if len(shared.unchecked_node_pool) > 10:
addr.update({structure.NetAddr(1, a[0], a[1]) for a in random.sample(shared.unchecked_node_pool, 10)}) addr.update({
structure.NetAddr(1, a[0], a[1])
for a in random.sample(shared.unchecked_node_pool, 10)})
if len(addr) != 0: if len(addr) != 0:
self.send_queue.put(message.Addr(addr)) self.send_queue.put(message.Addr(addr))
with shared.objects_lock: with shared.objects_lock:
if len(shared.objects) > 0: if len(shared.objects) > 0:
to_send = {vector for vector in shared.objects.keys() if shared.objects[vector].expires_time > time.time()} to_send = {
vector for vector in shared.objects.keys()
if shared.objects[vector].expires_time > time.time()}
while len(to_send) > 0: while len(to_send) > 0:
if len(to_send) > 10000: if len(to_send) > 10000:
# We limit size of inv messaged to 10000 entries because they might time out in very slow networks (I2P) # We limit size of inv messaged to 10000 entries
# because they might time out in very slow networks (I2P)
pack = random.sample(to_send, 10000) pack = random.sample(to_send, 10000)
self.send_queue.put(message.Inv(pack)) self.send_queue.put(message.Inv(pack))
to_send.difference_update(pack) to_send.difference_update(pack)
@ -232,35 +287,47 @@ class Connection(threading.Thread):
if self.next_header: if self.next_header:
self.next_header = False self.next_header = False
try: try:
h = message.Header.from_bytes(self.buffer_receive[:shared.header_length]) h = message.Header.from_bytes(
self.buffer_receive[:shared.header_length])
except ValueError as e: except ValueError as e:
self.status = 'disconnecting' self.status = 'disconnecting'
logging.warning('Received malformed message from {}:{}: {}'.format(self.host_print, self.port, e)) logging.warning(
'Received malformed message from %s:%s: %s',
self.host_print, self.port, e)
break break
self.next_message_size += h.payload_length self.next_message_size += h.payload_length
else: else:
try: try:
m = message.Message.from_bytes(self.buffer_receive[:self.next_message_size]) m = message.Message.from_bytes(
self.buffer_receive[:self.next_message_size])
except ValueError as e: except ValueError as e:
self.status = 'disconnecting' self.status = 'disconnecting'
logging.warning('Received malformed message from {}:{}, {}'.format(self.host_print, self.port, e)) logging.warning(
'Received malformed message from %s:%s, %s',
self.host_print, self.port, e)
break break
self.next_header = True self.next_header = True
self.buffer_receive = self.buffer_receive[self.next_message_size:] self.buffer_receive = self.buffer_receive[
self.next_message_size:]
self.next_message_size = shared.header_length self.next_message_size = shared.header_length
self.last_message_received = time.time() self.last_message_received = time.time()
try: try:
self._process_message(m) self._process_message(m)
except ValueError as e: except ValueError as e:
self.status = 'disconnecting' self.status = 'disconnecting'
logging.warning('Received malformed message from {}:{}: {}'.format(self.host_print, self.port, e)) logging.warning(
'Received malformed message from %s:%s: %s',
self.host_print, self.port, e)
break break
def _process_message(self, m): def _process_message(self, m):
if m.command == b'version': if m.command == b'version':
version = message.Version.from_bytes(m.to_bytes()) version = message.Version.from_bytes(m.to_bytes())
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, str(version))) logging.debug('%s:%s -> %s', self.host_print, self.port, version)
if version.protocol_version != shared.protocol_version or version.nonce == shared.nonce: if (
version.protocol_version != shared.protocol_version
or version.nonce == shared.nonce
):
self.status = 'disconnecting' self.status = 'disconnecting'
self.send_queue.put(None) self.send_queue.put(None)
else: else:
@ -270,27 +337,31 @@ class Connection(threading.Thread):
if not self.server: if not self.server:
self.send_queue.put('fully_established') self.send_queue.put('fully_established')
if self.network == 'ip': if self.network == 'ip':
shared.address_advertise_queue.put(structure.NetAddr(version.services, self.host, self.port)) shared.address_advertise_queue.put(structure.NetAddr(
version.services, self.host, self.port))
shared.node_pool.add((self.host, self.port)) shared.node_pool.add((self.host, self.port))
elif self.network == 'i2p': elif self.network == 'i2p':
shared.i2p_node_pool.add((self.host, 'i2p')) shared.i2p_node_pool.add((self.host, 'i2p'))
if self.network == 'ip': if self.network == 'ip':
shared.address_advertise_queue.put(structure.NetAddr(shared.services, version.host, shared.listening_port)) shared.address_advertise_queue.put(structure.NetAddr(
shared.services, version.host, shared.listening_port))
if self.server: if self.server:
if self.network == 'ip': if self.network == 'ip':
self.send_queue.put(message.Version(self.host, self.port)) self.send_queue.put(
message.Version(self.host, self.port))
else: else:
self.send_queue.put(message.Version('127.0.0.1', 7656)) self.send_queue.put(message.Version('127.0.0.1', 7656))
elif m.command == b'verack': elif m.command == b'verack':
self.verack_received = True self.verack_received = True
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, 'verack')) logging.debug(
'%s:%s -> %s', self.host_print, self.port, 'verack')
if self.server: if self.server:
self.send_queue.put('fully_established') self.send_queue.put('fully_established')
elif m.command == b'inv': elif m.command == b'inv':
inv = message.Inv.from_message(m) inv = message.Inv.from_message(m)
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, inv)) logging.debug('%s:%s -> %s', self.host_print, self.port, inv)
to_get = inv.vectors.copy() to_get = inv.vectors.copy()
to_get.difference_update(shared.objects.keys()) to_get.difference_update(shared.objects.keys())
self.vectors_to_get.update(to_get) self.vectors_to_get.update(to_get)
@ -299,39 +370,45 @@ class Connection(threading.Thread):
elif m.command == b'object': elif m.command == b'object':
obj = structure.Object.from_message(m) obj = structure.Object.from_message(m)
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, obj)) logging.debug('%s:%s -> %s', self.host_print, self.port, obj)
self.vectors_requested.pop(obj.vector, None) self.vectors_requested.pop(obj.vector, None)
self.vectors_to_get.discard(obj.vector) self.vectors_to_get.discard(obj.vector)
if obj.is_valid() and obj.vector not in shared.objects: if obj.is_valid() and obj.vector not in shared.objects:
with shared.objects_lock: with shared.objects_lock:
shared.objects[obj.vector] = obj shared.objects[obj.vector] = obj
if obj.object_type == shared.i2p_dest_obj_type and obj.version == shared.i2p_dest_obj_version: if (
obj.object_type == shared.i2p_dest_obj_type
and obj.version == shared.i2p_dest_obj_version
):
dest = base64.b64encode(obj.object_payload, altchars=b'-~') dest = base64.b64encode(obj.object_payload, altchars=b'-~')
logging.debug('Received I2P destination object, adding to i2p_unchecked_node_pool') logging.debug(
'Received I2P destination object,'
' adding to i2p_unchecked_node_pool')
logging.debug(dest) logging.debug(dest)
shared.i2p_unchecked_node_pool.add((dest, 'i2p')) shared.i2p_unchecked_node_pool.add((dest, 'i2p'))
shared.vector_advertise_queue.put(obj.vector) shared.vector_advertise_queue.put(obj.vector)
elif m.command == b'getdata': elif m.command == b'getdata':
getdata = message.GetData.from_message(m) getdata = message.GetData.from_message(m)
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, getdata)) logging.debug('%s:%s -> %s', self.host_print, self.port, getdata)
self.vectors_to_send.update(getdata.vectors) self.vectors_to_send.update(getdata.vectors)
elif m.command == b'addr': elif m.command == b'addr':
addr = message.Addr.from_message(m) addr = message.Addr.from_message(m)
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, addr)) logging.debug('%s:%s -> %s', self.host_print, self.port, addr)
for a in addr.addresses: for a in addr.addresses:
shared.unchecked_node_pool.add((a.host, a.port)) shared.unchecked_node_pool.add((a.host, a.port))
elif m.command == b'ping': elif m.command == b'ping':
logging.debug('{}:{} -> ping'.format(self.host_print, self.port)) logging.debug('%s:%s -> ping', self.host_print, self.port)
self.send_queue.put(message.Message(b'pong', b'')) self.send_queue.put(message.Message(b'pong', b''))
elif m.command == b'error': elif m.command == b'error':
logging.error('{}:{} -> error: {}'.format(self.host_print, self.port, m.payload)) logging.error(
'%s:%s -> error: %s', self.host_print, self.port, m.payload)
else: else:
logging.debug('{}:{} -> {}'.format(self.host_print, self.port, m)) logging.debug('%s:%s -> %s', self.host_print, self.port, m)
def _request_objects(self): def _request_objects(self):
if self.vectors_to_get and len(self.vectors_requested) < 100: if self.vectors_to_get and len(self.vectors_requested) < 100:
@ -340,18 +417,28 @@ class Connection(threading.Thread):
if len(self.vectors_to_get) > 64: if len(self.vectors_to_get) > 64:
pack = random.sample(self.vectors_to_get, 64) pack = random.sample(self.vectors_to_get, 64)
self.send_queue.put(message.GetData(pack)) self.send_queue.put(message.GetData(pack))
self.vectors_requested.update({vector: time.time() for vector in pack if vector not in self.vectors_requested}) self.vectors_requested.update({
vector: time.time() for vector in pack
if vector not in self.vectors_requested})
self.vectors_to_get.difference_update(pack) self.vectors_to_get.difference_update(pack)
else: else:
self.send_queue.put(message.GetData(self.vectors_to_get)) self.send_queue.put(message.GetData(self.vectors_to_get))
self.vectors_requested.update({vector: time.time() for vector in self.vectors_to_get if vector not in self.vectors_requested}) self.vectors_requested.update({
vector: time.time() for vector in self.vectors_to_get
if vector not in self.vectors_requested})
self.vectors_to_get.clear() self.vectors_to_get.clear()
if self.vectors_requested: if self.vectors_requested:
self.vectors_requested = {vector: t for vector, t in self.vectors_requested.items() if vector not in shared.objects and t > time.time() - 15 * 60} self.vectors_requested = {
to_re_request = {vector for vector, t in self.vectors_requested.items() if t < time.time() - 10 * 60} vector: t for vector, t in self.vectors_requested.items()
if vector not in shared.objects and t > time.time() - 15 * 60}
to_re_request = {
vector for vector, t in self.vectors_requested.items()
if t < time.time() - 10 * 60}
if to_re_request: if to_re_request:
self.vectors_to_get.update(to_re_request) self.vectors_to_get.update(to_re_request)
logging.debug('Re-requesting {} objects from {}:{}'.format(len(to_re_request), self.host_print, self.port)) logging.debug(
'Re-requesting %i objects from %s:%s',
len(to_re_request), self.host_print, self.port)
def _send_objects(self): def _send_objects(self):
if self.vectors_to_send: if self.vectors_to_send:

10
minode/i2p/controller.py
View File

@ -23,7 +23,8 @@ class I2PController(threading.Thread):
self.s = socket.create_connection((self.host, self.port)) self.s = socket.create_connection((self.host, self.port))
break break
except ConnectionRefusedError: except ConnectionRefusedError:
logging.error("Error while connecting to I2P SAM bridge. Retrying.") logging.error(
'Error while connecting to I2P SAM bridge. Retrying.')
time.sleep(10) time.sleep(10)
self.version_reply = [] self.version_reply = []
@ -42,11 +43,11 @@ class I2PController(threading.Thread):
def _receive_line(self): def _receive_line(self):
line = receive_line(self.s) line = receive_line(self.s)
# logging.debug('I2PController <- ' + str(line)) # logging.debug('I2PController <- %s', line)
return line return line
def _send(self, command): def _send(self, command):
# logging.debug('I2PController -> ' + str(command)) # logging.debug('I2PController -> %s', command)
self.s.sendall(command) self.s.sendall(command)
def init_connection(self): def init_connection(self):
@ -78,7 +79,8 @@ class I2PController(threading.Thread):
reply = self._receive_line().split() reply = self._receive_line().split()
if b'RESULT=OK' not in reply: if b'RESULT=OK' not in reply:
logging.warning(reply) logging.warning(reply)
logging.warning('We could not create I2P session, retrying in 5 seconds.') logging.warning(
'We could not create I2P session, retrying in 5 seconds.')
time.sleep(5) time.sleep(5)
self.create_session() self.create_session()

15
minode/i2p/dialer.py
View File

@ -25,7 +25,7 @@ class I2PDialer(threading.Thread):
self.success = True self.success = True
def run(self): def run(self):
logging.debug('Connecting to {}'.format(self.destination)) logging.debug('Connecting to %s', self.destination)
self._connect() self._connect()
if not self.state.shutting_down and self.success: if not self.state.shutting_down and self.success:
c = self.state.connection( c = self.state.connection(
@ -36,22 +36,25 @@ class I2PDialer(threading.Thread):
def _receive_line(self): def _receive_line(self):
line = receive_line(self.s) line = receive_line(self.s)
# logging.debug('I2PDialer <- ' + str(line)) # logging.debug('I2PDialer <- %s', line)
return line return line
def _send(self, command): def _send(self, command):
# logging.debug('I2PDialer -> ' + str(command)) # logging.debug('I2PDialer -> %s', command)
self.s.sendall(command) self.s.sendall(command)
def _connect(self): def _connect(self):
self._send(b'HELLO VERSION MIN=3.0 MAX=3.3\n') self._send(b'HELLO VERSION MIN=3.0 MAX=3.3\n')
self.version_reply = self._receive_line().split() self.version_reply = self._receive_line().split()
if b'RESULT=OK' not in self.version_reply: if b'RESULT=OK' not in self.version_reply:
logging.warning('Error while connecting to {}'.format(self.destination)) logging.warning('Error while connecting to %s', self.destination)
self.success = False self.success = False
self._send(b'STREAM CONNECT ID=' + self.nick + b' DESTINATION=' + self.destination + b'\n') self._send(
b'STREAM CONNECT ID=' + self.nick + b' DESTINATION='
+ self.destination + b'\n')
reply = self._receive_line().split(b' ') reply = self._receive_line().split(b' ')
if b'RESULT=OK' not in reply: if b'RESULT=OK' not in reply:
logging.warning('Error while connecting to {}'.format(self.destination)) logging.warning(
'Error while connecting to %s', self.destination)
self.success = False self.success = False

7
minode/i2p/listener.py
View File

@ -23,11 +23,11 @@ class I2PListener(threading.Thread):
def _receive_line(self): def _receive_line(self):
line = receive_line(self.s) line = receive_line(self.s)
# logging.debug('I2PListener <- ' + str(line)) # logging.debug('I2PListener <- %s', line)
return line return line
def _send(self, command): def _send(self, command):
# logging.debug('I2PListener -> ' + str(command)) # logging.debug('I2PListener -> %s', command)
self.s.sendall(command) self.s.sendall(command)
def new_socket(self): def new_socket(self):
@ -46,7 +46,8 @@ class I2PListener(threading.Thread):
while not self.state.shutting_down: while not self.state.shutting_down:
try: try:
destination = self._receive_line().split()[0] destination = self._receive_line().split()[0]
logging.info('Incoming I2P connection from: {}'.format(destination.decode())) logging.info(
'Incoming I2P connection from: %s', destination.decode())
hosts = set() hosts = set()
for c in self.state.connections.copy(): for c in self.state.connections.copy():

7
minode/i2p/util.py
View File

@ -16,11 +16,14 @@ def receive_line(s):
def pub_from_priv(priv): def pub_from_priv(priv):
priv = base64.b64decode(priv, altchars=b'-~') priv = base64.b64decode(priv, altchars=b'-~')
# 256 for public key + 128 for signing key + 3 for certificate header + value of bytes priv[385:387] # 256 for public key + 128 for signing key + 3 for certificate header
# + value of bytes priv[385:387]
pub = priv[:387 + int.from_bytes(priv[385:387], byteorder='big')] pub = priv[:387 + int.from_bytes(priv[385:387], byteorder='big')]
pub = base64.b64encode(pub, altchars=b'-~') pub = base64.b64encode(pub, altchars=b'-~')
return pub return pub
def b32_from_pub(pub): def b32_from_pub(pub):
return base64.b32encode(hashlib.sha256(base64.b64decode(pub, b'-~')).digest()).replace(b"=", b"").lower() + b'.b32.i2p' return base64.b32encode(
hashlib.sha256(base64.b64decode(pub, b'-~')).digest()
).replace(b"=", b"").lower() + b'.b32.i2p'

4
minode/listener.py
View File

@ -26,12 +26,12 @@ class Listener(threading.Thread):
break break
try: try:
conn, addr = self.s.accept() conn, addr = self.s.accept()
logging.info('Incoming connection from: {}:{}'.format(addr[0], addr[1])) logging.info('Incoming connection from: %s:%s', *addr)
with shared.connections_lock: with shared.connections_lock:
if len(shared.connections) > shared.connection_limit: if len(shared.connections) > shared.connection_limit:
conn.close() conn.close()
else: else:
c = Connection(addr[0], addr[1], conn, 'ip', True) c = Connection(*addr, conn, server=True)
c.start() c.start()
shared.connections.add(c) shared.connections.add(c)
except socket.timeout: except socket.timeout:

169
minode/main.py
View File

@ -24,18 +24,32 @@ def parse_arguments():
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser()
parser.add_argument('-p', '--port', help='Port to listen on', type=int) parser.add_argument('-p', '--port', help='Port to listen on', type=int)
parser.add_argument('--host', help='Listening host') parser.add_argument('--host', help='Listening host')
parser.add_argument('--debug', help='Enable debug logging', action='store_true') parser.add_argument(
'--debug', action='store_true', help='Enable debug logging')
parser.add_argument('--data-dir', help='Path to data directory') parser.add_argument('--data-dir', help='Path to data directory')
parser.add_argument('--no-incoming', help='Do not listen for incoming connections', action='store_true') parser.add_argument(
parser.add_argument('--no-outgoing', help='Do not send outgoing connections', action='store_true') '--no-incoming', action='store_true',
parser.add_argument('--no-ip', help='Do not use IP network', action='store_true') help='Do not listen for incoming connections')
parser.add_argument('--trusted-peer', help='Specify a trusted peer we should connect to') parser.add_argument(
parser.add_argument('--connection-limit', help='Maximum number of connections', type=int) '--no-outgoing', action='store_true',
parser.add_argument('--i2p', help='Enable I2P support (uses SAMv3)', action='store_true') help='Do not send outgoing connections')
parser.add_argument('--i2p-tunnel-length', help='Length of I2P tunnels', type=int) parser.add_argument(
parser.add_argument('--i2p-sam-host', help='Host of I2P SAMv3 bridge') '--no-ip', action='store_true', help='Do not use IP network')
parser.add_argument('--i2p-sam-port', help='Port of I2P SAMv3 bridge', type=int) parser.add_argument(
parser.add_argument('--i2p-transient', help='Generate new I2P destination on start', action='store_true') '--trusted-peer', help='Specify a trusted peer we should connect to')
parser.add_argument(
'--connection-limit', type=int, help='Maximum number of connections')
parser.add_argument(
'--i2p', action='store_true', help='Enable I2P support (uses SAMv3)')
parser.add_argument(
'--i2p-tunnel-length', type=int, help='Length of I2P tunnels')
parser.add_argument(
'--i2p-sam-host', help='Host of I2P SAMv3 bridge')
parser.add_argument(
'--i2p-sam-port', type=int, help='Port of I2P SAMv3 bridge')
parser.add_argument(
'--i2p-transient', action='store_true',
help='Generate new I2P destination on start')
args = parser.parse_args() args = parser.parse_args()
if args.port: if args.port:
@ -87,32 +101,44 @@ def parse_arguments():
def load_data(): def load_data():
try: try:
with open(shared.data_directory + 'objects.pickle', mode='br') as file: with open(
shared.objects = pickle.load(file) os.path.join(shared.data_directory, 'objects.pickle'), 'br'
) as src:
shared.objects = pickle.load(src)
except Exception as e: except Exception as e:
logging.warning('Error while loading objects from disk.') logging.warning('Error while loading objects from disk.')
logging.warning(e) logging.warning(e)
try: try:
with open(shared.data_directory + 'nodes.pickle', mode='br') as file: with open(
shared.node_pool = pickle.load(file) os.path.join(shared.data_directory, 'nodes.pickle'), 'br'
) as src:
shared.node_pool = pickle.load(src)
except Exception as e: except Exception as e:
logging.warning('Error while loading nodes from disk.') logging.warning('Error while loading nodes from disk.')
logging.warning(e) logging.warning(e)
try: try:
with open(shared.data_directory + 'i2p_nodes.pickle', mode='br') as file: with open(
shared.i2p_node_pool = pickle.load(file) os.path.join(shared.data_directory, 'i2p_nodes.pickle'), 'br'
) as src:
shared.i2p_node_pool = pickle.load(src)
except Exception as e: except Exception as e:
logging.warning('Error while loading nodes from disk.') logging.warning('Error while loading nodes from disk.')
logging.warning(e) logging.warning(e)
with open(os.path.join(shared.source_directory, 'core_nodes.csv'), mode='r', newline='') as f: with open(
reader = csv.reader(f) os.path.join(shared.source_directory, 'core_nodes.csv'),
'r', newline=''
) as src:
reader = csv.reader(src)
shared.core_nodes = {tuple(row) for row in reader} shared.core_nodes = {tuple(row) for row in reader}
shared.node_pool.update(shared.core_nodes) shared.node_pool.update(shared.core_nodes)
with open(os.path.join(shared.source_directory, 'i2p_core_nodes.csv'), mode='r', newline='') as f: with open(
os.path.join(shared.source_directory, 'i2p_core_nodes.csv'),
'r', newline=''
) as f:
reader = csv.reader(f) reader = csv.reader(f)
shared.i2p_core_nodes = {(row[0].encode(), 'i2p') for row in reader} shared.i2p_core_nodes = {(row[0].encode(), 'i2p') for row in reader}
shared.i2p_node_pool.update(shared.i2p_core_nodes) shared.i2p_node_pool.update(shared.i2p_core_nodes)
@ -122,13 +148,16 @@ def bootstrap_from_dns():
try: try:
for item in socket.getaddrinfo('bootstrap8080.bitmessage.org', 80): for item in socket.getaddrinfo('bootstrap8080.bitmessage.org', 80):
shared.unchecked_node_pool.add((item[4][0], 8080)) shared.unchecked_node_pool.add((item[4][0], 8080))
logging.debug('Adding ' + item[4][0] + ' to unchecked_node_pool based on DNS bootstrap method') logging.debug(
'Adding %s to unchecked_node_pool'
' based on DNS bootstrap method', item[4][0])
for item in socket.getaddrinfo('bootstrap8444.bitmessage.org', 80): for item in socket.getaddrinfo('bootstrap8444.bitmessage.org', 80):
shared.unchecked_node_pool.add((item[4][0], 8444)) shared.unchecked_node_pool.add((item[4][0], 8444))
logging.debug('Adding ' + item[4][0] + ' to unchecked_node_pool based on DNS bootstrap method') logging.debug(
except Exception as e: 'Adding %s to unchecked_node_pool'
logging.error('Error during DNS bootstrap') ' based on DNS bootstrap method', item[4][0])
logging.error(e) except Exception:
logging.error('Error during DNS bootstrap', exc_info=True)
def start_ip_listener(): def start_ip_listener():
@ -137,37 +166,48 @@ def start_ip_listener():
if socket.has_ipv6: if socket.has_ipv6:
try: try:
listener_ipv6 = Listener(shared.listening_host, shared.listening_port, family=socket.AF_INET6) listener_ipv6 = Listener(
shared.listening_host,
shared.listening_port, family=socket.AF_INET6)
listener_ipv6.start() listener_ipv6.start()
except Exception as e: except Exception:
logging.warning('Error while starting IPv6 listener on port {}'.format(shared.listening_port)) logging.warning(
logging.warning(e) 'Error while starting IPv6 listener on port %s',
shared.listening_port, exc_info=True)
try: try:
listener_ipv4 = Listener(shared.listening_host, shared.listening_port) listener_ipv4 = Listener(shared.listening_host, shared.listening_port)
listener_ipv4.start() listener_ipv4.start()
except Exception as e: except Exception:
if listener_ipv6: if listener_ipv6:
logging.warning('Error while starting IPv4 listener on port {}. '.format(shared.listening_port) + logging.warning(
'However the IPv6 one seems to be working and will probably accept IPv4 connections.') 'Error while starting IPv4 listener on port %s.'
' However the IPv6 one seems to be working'
' and will probably accept IPv4 connections.',
shared.listening_port)
else: else:
logging.error('Error while starting IPv4 listener on port {}. '.format(shared.listening_port) + logging.error(
'You will not receive incoming connections. Please check your port configuration') 'Error while starting IPv4 listener on port %s.'
logging.error(e) 'You will not receive incoming connections.'
' Please check your port configuration',
shared.listening_port, exc_info=True)
def start_i2p_listener(): def start_i2p_listener():
# Grab I2P destinations from old object file # Grab I2P destinations from old object file
for obj in shared.objects.values(): for obj in shared.objects.values():
if obj.object_type == shared.i2p_dest_obj_type: if obj.object_type == shared.i2p_dest_obj_type:
shared.i2p_unchecked_node_pool.add((base64.b64encode(obj.object_payload, altchars=b'-~'), 'i2p')) shared.i2p_unchecked_node_pool.add((
base64.b64encode(obj.object_payload, altchars=b'-~'), 'i2p'))
dest_priv = b'' dest_priv = b''
if not shared.i2p_transient: if not shared.i2p_transient:
try: try:
with open(shared.data_directory + 'i2p_dest_priv.key', mode='br') as file: with open(
dest_priv = file.read() os.path.join(shared.data_directory, 'i2p_dest_priv.key'), 'br'
) as src:
dest_priv = src.read()
logging.debug('Loaded I2P destination private key.') logging.debug('Loaded I2P destination private key.')
except Exception: except Exception:
logging.warning( logging.warning(
@ -183,8 +223,8 @@ def start_i2p_listener():
shared.i2p_dest_pub = i2p_controller.dest_pub shared.i2p_dest_pub = i2p_controller.dest_pub
shared.i2p_session_nick = i2p_controller.nick shared.i2p_session_nick = i2p_controller.nick
logging.info('Local I2P destination: {}'.format(shared.i2p_dest_pub.decode())) logging.info('Local I2P destination: %s', shared.i2p_dest_pub.decode())
logging.info('I2P session nick: {}'.format(shared.i2p_session_nick.decode())) logging.info('I2P session nick: %s', shared.i2p_session_nick.decode())
logging.info('Starting I2P Listener') logging.info('Starting I2P Listener')
i2p_listener = i2p.I2PListener(shared, i2p_controller.nick) i2p_listener = i2p.I2PListener(shared, i2p_controller.nick)
@ -192,20 +232,25 @@ def start_i2p_listener():
if not shared.i2p_transient: if not shared.i2p_transient:
try: try:
with open(shared.data_directory + 'i2p_dest_priv.key', mode='bw') as file: with open(
file.write(i2p_controller.dest_priv) os.path.join(shared.data_directory, 'i2p_dest_priv.key'), 'bw'
) as src:
src.write(i2p_controller.dest_priv)
logging.debug('Saved I2P destination private key.') logging.debug('Saved I2P destination private key.')
except Exception as e: except Exception:
logging.warning('Error while saving I2P destination private key.') logging.warning(
logging.warning(e) 'Error while saving I2P destination private key.',
exc_info=True)
try: try:
with open(shared.data_directory + 'i2p_dest.pub', mode='bw') as file: with open(
file.write(shared.i2p_dest_pub) os.path.join(shared.data_directory, 'i2p_dest.pub'), 'bw'
) as src:
src.write(shared.i2p_dest_pub)
logging.debug('Saved I2P destination public key.') logging.debug('Saved I2P destination public key.')
except Exception as e: except Exception:
logging.warning('Error while saving I2P destination public key.') logging.warning(
logging.warning(e) 'Error while saving I2P destination public key.', exc_info=True)
def main(): def main():
@ -214,16 +259,19 @@ def main():
parse_arguments() parse_arguments()
logging.basicConfig(level=shared.log_level, format='[%(asctime)s] [%(levelname)s] %(message)s') logging.basicConfig(
level=shared.log_level,
format='[%(asctime)s] [%(levelname)s] %(message)s')
logging.info('Starting MiNode') logging.info('Starting MiNode')
logging.info('Data directory: {}'.format(shared.data_directory)) logging.info('Data directory: %s', shared.data_directory)
if not os.path.exists(shared.data_directory): if not os.path.exists(shared.data_directory):
try: try:
os.makedirs(shared.data_directory) os.makedirs(shared.data_directory)
except Exception as e: except Exception:
logging.warning('Error while creating data directory in: {}'.format(shared.data_directory)) logging.warning(
logging.warning(e) 'Error while creating data directory in: %s',
shared.data_directory, exc_info=True)
load_data() load_data()
@ -231,15 +279,20 @@ def main():
bootstrap_from_dns() bootstrap_from_dns()
if shared.i2p_enabled: if shared.i2p_enabled:
# We are starting it before cleaning expired objects so we can collect I2P destination objects # We are starting it before cleaning expired objects
# so we can collect I2P destination objects
start_i2p_listener() start_i2p_listener()
for vector in set(shared.objects): for vector in set(shared.objects):
if not shared.objects[vector].is_valid(): if not shared.objects[vector].is_valid():
if shared.objects[vector].is_expired(): if shared.objects[vector].is_expired():
logging.debug('Deleted expired object: {}'.format(base64.b16encode(vector).decode())) logging.debug(
'Deleted expired object: %s',
base64.b16encode(vector).decode())
else: else:
logging.warning('Deleted invalid object: {}'.format(base64.b16encode(vector).decode())) logging.warning(
'Deleted invalid object: %s',
base64.b16encode(vector).decode())
del shared.objects[vector] del shared.objects[vector]
manager = Manager() manager = Manager()

67
minode/manager.py
View File

@ -1,6 +1,7 @@
# -*- coding: utf-8 -*- # -*- coding: utf-8 -*-
import base64 import base64
import logging import logging
import os
import pickle import pickle
import queue import queue
import random import random
@ -20,7 +21,9 @@ class Manager(threading.Thread):
self.last_cleaned_connections = time.time() self.last_cleaned_connections = time.time()
self.last_pickled_objects = time.time() self.last_pickled_objects = time.time()
self.last_pickled_nodes = time.time() self.last_pickled_nodes = time.time()
self.last_published_i2p_destination = time.time() - 50 * 60 + random.uniform(-1, 1) * 300 # Publish destination 5-15 minutes after start # Publish destination 5-15 minutes after start
self.last_published_i2p_destination = \
time.time() - 50 * 60 + random.uniform(-1, 1) * 300
def run(self): def run(self):
while True: while True:
@ -51,7 +54,9 @@ class Manager(threading.Thread):
if shared.objects[vector].is_expired(): if shared.objects[vector].is_expired():
with shared.objects_lock: with shared.objects_lock:
del shared.objects[vector] del shared.objects[vector]
logging.debug('Deleted expired object: {}'.format(base64.b16encode(vector).decode())) logging.debug(
'Deleted expired object: %s',
base64.b16encode(vector).decode())
@staticmethod @staticmethod
def manage_connections(): def manage_connections():
@ -75,11 +80,15 @@ class Manager(threading.Thread):
if shared.trusted_peer: if shared.trusted_peer:
to_connect.add(shared.trusted_peer) to_connect.add(shared.trusted_peer)
if outgoing_connections < shared.outgoing_connections and shared.send_outgoing_connections and not shared.trusted_peer: if (
outgoing_connections < shared.outgoing_connections
and shared.send_outgoing_connections and not shared.trusted_peer
):
if shared.ip_enabled: if shared.ip_enabled:
if len(shared.unchecked_node_pool) > 16: if len(shared.unchecked_node_pool) > 16:
to_connect.update(random.sample(shared.unchecked_node_pool, 16)) to_connect.update(random.sample(
shared.unchecked_node_pool, 16))
else: else:
to_connect.update(shared.unchecked_node_pool) to_connect.update(shared.unchecked_node_pool)
shared.unchecked_node_pool.difference_update(to_connect) shared.unchecked_node_pool.difference_update(to_connect)
@ -90,7 +99,8 @@ class Manager(threading.Thread):
if shared.i2p_enabled: if shared.i2p_enabled:
if len(shared.i2p_unchecked_node_pool) > 16: if len(shared.i2p_unchecked_node_pool) > 16:
to_connect.update(random.sample(shared.i2p_unchecked_node_pool, 16)) to_connect.update(
random.sample(shared.i2p_unchecked_node_pool, 16))
else: else:
to_connect.update(shared.i2p_unchecked_node_pool) to_connect.update(shared.i2p_unchecked_node_pool)
shared.i2p_unchecked_node_pool.difference_update(to_connect) shared.i2p_unchecked_node_pool.difference_update(to_connect)
@ -112,9 +122,10 @@ class Manager(threading.Thread):
d.start() d.start()
hosts.add(d.destination) hosts.add(d.destination)
shared.i2p_dialers.add(d) shared.i2p_dialers.add(d)
except Exception as e: except Exception:
logging.warning('Exception while trying to establish an I2P connection') logging.warning(
logging.warning(e) 'Exception while trying to establish'
' an I2P connection', exc_info=True)
else: else:
continue continue
else: else:
@ -128,9 +139,11 @@ class Manager(threading.Thread):
@staticmethod @staticmethod
def pickle_objects(): def pickle_objects():
try: try:
with open(shared.data_directory + 'objects.pickle', mode='bw') as file: with open(
os.path.join(shared.data_directory, 'objects.pickle'), 'bw'
) as dst:
with shared.objects_lock: with shared.objects_lock:
pickle.dump(shared.objects, file, protocol=3) pickle.dump(shared.objects, dst, protocol=3)
logging.debug('Saved objects') logging.debug('Saved objects')
except Exception as e: except Exception as e:
logging.warning('Error while saving objects') logging.warning('Error while saving objects')
@ -141,27 +154,37 @@ class Manager(threading.Thread):
if len(shared.node_pool) > 10000: if len(shared.node_pool) > 10000:
shared.node_pool = set(random.sample(shared.node_pool, 10000)) shared.node_pool = set(random.sample(shared.node_pool, 10000))
if len(shared.unchecked_node_pool) > 1000: if len(shared.unchecked_node_pool) > 1000:
shared.unchecked_node_pool = set(random.sample(shared.unchecked_node_pool, 1000)) shared.unchecked_node_pool = set(
random.sample(shared.unchecked_node_pool, 1000))
if len(shared.i2p_node_pool) > 1000: if len(shared.i2p_node_pool) > 1000:
shared.i2p_node_pool = set(random.sample(shared.i2p_node_pool, 1000)) shared.i2p_node_pool = set(
random.sample(shared.i2p_node_pool, 1000))
if len(shared.i2p_unchecked_node_pool) > 100: if len(shared.i2p_unchecked_node_pool) > 100:
shared.i2p_unchecked_node_pool = set(random.sample(shared.i2p_unchecked_node_pool, 100)) shared.i2p_unchecked_node_pool = set(
random.sample(shared.i2p_unchecked_node_pool, 100))
try: try:
with open(shared.data_directory + 'nodes.pickle', mode='bw') as file: with open(
pickle.dump(shared.node_pool, file, protocol=3) os.path.join(shared.data_directory, 'nodes.pickle'), 'bw'
with open(shared.data_directory + 'i2p_nodes.pickle', mode='bw') as file: ) as dst:
pickle.dump(shared.i2p_node_pool, file, protocol=3) pickle.dump(shared.node_pool, dst, protocol=3)
with open(
os.path.join(shared.data_directory, 'i2p_nodes.pickle'), 'bw'
) as dst:
pickle.dump(shared.i2p_node_pool, dst, protocol=3)
logging.debug('Saved nodes') logging.debug('Saved nodes')
except Exception as e: except Exception:
logging.warning('Error while saving nodes') logging.warning('Error while saving nodes', exc_info=True)
logging.warning(e)
@staticmethod @staticmethod
def publish_i2p_destination(): def publish_i2p_destination():
if shared.i2p_session_nick and not shared.i2p_transient: if shared.i2p_session_nick and not shared.i2p_transient:
logging.info('Publishing our I2P destination') logging.info('Publishing our I2P destination')
dest_pub_raw = base64.b64decode(shared.i2p_dest_pub, altchars=b'-~') dest_pub_raw = base64.b64decode(
obj = structure.Object(b'\x00' * 8, int(time.time() + 2 * 3600), shared.i2p_dest_obj_type, shared.i2p_dest_obj_version, 1, dest_pub_raw) shared.i2p_dest_pub, altchars=b'-~')
obj = structure.Object(
b'\x00' * 8, int(time.time() + 2 * 3600),
shared.i2p_dest_obj_type, shared.i2p_dest_obj_version,
1, dest_pub_raw)
pow.do_pow_and_publish(obj) pow.do_pow_and_publish(obj)

80
minode/message.py
View File

@ -14,8 +14,12 @@ class Header(object):
self.payload_checksum = payload_checksum self.payload_checksum = payload_checksum
def __repr__(self): def __repr__(self):
return 'type: header, command: "{}", payload_length: {}, payload_checksum: {}'\ return (
.format(self.command.decode(), self.payload_length, base64.b16encode(self.payload_checksum).decode()) 'type: header, command: "{}", payload_length: {},'
' payload_checksum: {}'
).format(
self.command.decode(), self.payload_length,
base64.b16encode(self.payload_checksum).decode())
def to_bytes(self): def to_bytes(self):
b = b'' b = b''
@ -27,7 +31,8 @@ class Header(object):
@classmethod @classmethod
def from_bytes(cls, b): def from_bytes(cls, b):
magic_bytes, command, payload_length, payload_checksum = struct.unpack('>4s12sL4s', b) magic_bytes, command, payload_length, payload_checksum = struct.unpack(
'>4s12sL4s', b)
if magic_bytes != shared.magic_bytes: if magic_bytes != shared.magic_bytes:
raise ValueError('magic_bytes do not match') raise ValueError('magic_bytes do not match')
@ -46,11 +51,14 @@ class Message(object):
self.payload_checksum = hashlib.sha512(payload).digest()[:4] self.payload_checksum = hashlib.sha512(payload).digest()[:4]
def __repr__(self): def __repr__(self):
return '{}, payload_length: {}, payload_checksum: {}'\ return '{}, payload_length: {}, payload_checksum: {}'.format(
.format(self.command.decode(), self.payload_length, base64.b16encode(self.payload_checksum).decode()) self.command.decode(), self.payload_length,
base64.b16encode(self.payload_checksum).decode())
def to_bytes(self): def to_bytes(self):
b = Header(self.command, self.payload_length, self.payload_checksum).to_bytes() b = Header(
self.command, self.payload_length, self.payload_checksum
).to_bytes()
b += self.payload b += self.payload
return b return b
@ -62,19 +70,26 @@ class Message(object):
payload_length = len(payload) payload_length = len(payload)
if payload_length != h.payload_length: if payload_length != h.payload_length:
raise ValueError('wrong payload length, expected {}, got {}'.format(h.payload_length, payload_length)) raise ValueError(
'wrong payload length, expected {}, got {}'.format(
h.payload_length, payload_length))
payload_checksum = hashlib.sha512(payload).digest()[:4] payload_checksum = hashlib.sha512(payload).digest()[:4]
if payload_checksum != h.payload_checksum: if payload_checksum != h.payload_checksum:
raise ValueError('wrong payload checksum, expected {}, got {}'.format(h.payload_checksum, payload_checksum)) raise ValueError(
'wrong payload checksum, expected {}, got {}'.format(
h.payload_checksum, payload_checksum))
return cls(h.command, payload) return cls(h.command, payload)
class Version(object): class Version(object):
def __init__(self, host, port, protocol_version=shared.protocol_version, services=shared.services, def __init__(
nonce=shared.nonce, user_agent=shared.user_agent): self, host, port, protocol_version=shared.protocol_version,
services=shared.services, nonce=shared.nonce,
user_agent=shared.user_agent
):
self.host = host self.host = host
self.port = port self.port = port
@ -84,16 +99,21 @@ class Version(object):
self.user_agent = user_agent self.user_agent = user_agent
def __repr__(self): def __repr__(self):
return 'version, protocol_version: {}, services: {}, host: {}, port: {}, nonce: {}, user_agent: {}'\ return (
.format(self.protocol_version, self.services, self.host, self.port, base64.b16encode(self.nonce).decode(), self.user_agent) 'version, protocol_version: {}, services: {}, host: {}, port: {},'
' nonce: {}, user_agent: {}').format(
self.protocol_version, self.services, self.host, self.port,
base64.b16encode(self.nonce).decode(), self.user_agent)
def to_bytes(self): def to_bytes(self):
payload = b'' payload = b''
payload += struct.pack('>I', self.protocol_version) payload += struct.pack('>I', self.protocol_version)
payload += struct.pack('>Q', self.services) payload += struct.pack('>Q', self.services)
payload += struct.pack('>Q', int(time.time())) payload += struct.pack('>Q', int(time.time()))
payload += structure.NetAddrNoPrefix(shared.services, self.host, self.port).to_bytes() payload += structure.NetAddrNoPrefix(
payload += structure.NetAddrNoPrefix(shared.services, '127.0.0.1', 8444).to_bytes() shared.services, self.host, self.port).to_bytes()
payload += structure.NetAddrNoPrefix(
shared.services, '127.0.0.1', 8444).to_bytes()
payload += self.nonce payload += self.nonce
payload += structure.VarInt(len(shared.user_agent)).to_bytes() payload += structure.VarInt(len(shared.user_agent)).to_bytes()
payload += shared.user_agent payload += shared.user_agent
@ -107,8 +127,9 @@ class Version(object):
payload = m.payload payload = m.payload
protocol_version, services, t, net_addr_remote, net_addr_local, nonce = \ ( # unused: net_addr_local
struct.unpack('>IQQ26s26s8s', payload[:80]) protocol_version, services, t, net_addr_remote, _, nonce
) = struct.unpack('>IQQ26s26s8s', payload[:80])
net_addr_remote = structure.NetAddrNoPrefix.from_bytes(net_addr_remote) net_addr_remote = structure.NetAddrNoPrefix.from_bytes(net_addr_remote)
@ -118,7 +139,8 @@ class Version(object):
payload = payload[80:] payload = payload[80:]
user_agent_varint_length = structure.VarInt.length(payload[0]) user_agent_varint_length = structure.VarInt.length(payload[0])
user_agent_length = structure.VarInt.from_bytes(payload[:user_agent_varint_length]).n user_agent_length = structure.VarInt.from_bytes(
payload[:user_agent_varint_length]).n
payload = payload[user_agent_varint_length:] payload = payload[user_agent_varint_length:]
@ -140,14 +162,18 @@ class Inv(object):
return 'inv, count: {}'.format(len(self.vectors)) return 'inv, count: {}'.format(len(self.vectors))
def to_bytes(self): def to_bytes(self):
return Message(b'inv', structure.VarInt(len(self.vectors)).to_bytes() + b''.join(self.vectors)).to_bytes() return Message(
b'inv', structure.VarInt(len(self.vectors)).to_bytes()
+ b''.join(self.vectors)
).to_bytes()
@classmethod @classmethod
def from_message(cls, m): def from_message(cls, m):
payload = m.payload payload = m.payload
vector_count_varint_length = structure.VarInt.length(payload[0]) vector_count_varint_length = structure.VarInt.length(payload[0])
vector_count = structure.VarInt.from_bytes(payload[:vector_count_varint_length]).n vector_count = structure.VarInt.from_bytes(
payload[:vector_count_varint_length]).n
payload = payload[vector_count_varint_length:] payload = payload[vector_count_varint_length:]
@ -171,14 +197,18 @@ class GetData(object):
return 'getdata, count: {}'.format(len(self.vectors)) return 'getdata, count: {}'.format(len(self.vectors))
def to_bytes(self): def to_bytes(self):
return Message(b'getdata', structure.VarInt(len(self.vectors)).to_bytes() + b''.join(self.vectors)).to_bytes() return Message(
b'getdata', structure.VarInt(len(self.vectors)).to_bytes()
+ b''.join(self.vectors)
).to_bytes()
@classmethod @classmethod
def from_message(cls, m): def from_message(cls, m):
payload = m.payload payload = m.payload
vector_count_varint_length = structure.VarInt.length(payload[0]) vector_count_varint_length = structure.VarInt.length(payload[0])
vector_count = structure.VarInt.from_bytes(payload[:vector_count_varint_length]).n vector_count = structure.VarInt.from_bytes(
payload[:vector_count_varint_length]).n
payload = payload[vector_count_varint_length:] payload = payload[vector_count_varint_length:]
@ -202,14 +232,18 @@ class Addr(object):
return 'addr, count: {}'.format(len(self.addresses)) return 'addr, count: {}'.format(len(self.addresses))
def to_bytes(self): def to_bytes(self):
return Message(b'addr', structure.VarInt(len(self.addresses)).to_bytes() + b''.join({addr.to_bytes() for addr in self.addresses})).to_bytes() return Message(
b'addr', structure.VarInt(len(self.addresses)).to_bytes()
+ b''.join({addr.to_bytes() for addr in self.addresses})
).to_bytes()
@classmethod @classmethod
def from_message(cls, m): def from_message(cls, m):
payload = m.payload payload = m.payload
addr_count_varint_length = structure.VarInt.length(payload[0]) addr_count_varint_length = structure.VarInt.length(payload[0])
addr_count = structure.VarInt.from_bytes(payload[:addr_count_varint_length]).n # addr_count = structure.VarInt.from_bytes(
# payload[:addr_count_varint_length]).n
payload = payload[addr_count_varint_length:] payload = payload[addr_count_varint_length:]

23
minode/pow.py
View File

@ -2,7 +2,6 @@ import base64
import hashlib import hashlib
import logging import logging
import multiprocessing import multiprocessing
import shared
import struct import struct
import threading import threading
import time import time
@ -12,29 +11,37 @@ from . import shared, structure
def _pow_worker(target, initial_hash, q): def _pow_worker(target, initial_hash, q):
nonce = 0 nonce = 0
logging.debug("target: {}, initial_hash: {}".format(target, base64.b16encode(initial_hash).decode())) logging.debug(
'target: %s, initial_hash: %s',
target, base64.b16encode(initial_hash).decode())
trial_value = target + 1 trial_value = target + 1
while trial_value > target: while trial_value > target:
nonce += 1 nonce += 1
trial_value = struct.unpack('>Q', hashlib.sha512(hashlib.sha512(struct.pack('>Q', nonce) + initial_hash).digest()).digest()[:8])[0] trial_value = struct.unpack('>Q', hashlib.sha512(hashlib.sha512(
struct.pack('>Q', nonce) + initial_hash).digest()).digest()[:8])[0]
q.put(struct.pack('>Q', nonce)) q.put(struct.pack('>Q', nonce))
def _worker(obj): def _worker(obj):
q = multiprocessing.Queue() q = multiprocessing.Queue()
p = multiprocessing.Process(target=_pow_worker, args=(obj.pow_target(), obj.pow_initial_hash(), q)) p = multiprocessing.Process(
target=_pow_worker, args=(obj.pow_target(), obj.pow_initial_hash(), q))
logging.debug("Starting POW process") logging.debug('Starting POW process')
t = time.time() t = time.time()
p.start() p.start()
nonce = q.get() nonce = q.get()
p.join() p.join()
logging.debug("Finished doing POW, nonce: {}, time: {}s".format(nonce, time.time() - t)) logging.debug(
obj = structure.Object(nonce, obj.expires_time, obj.object_type, obj.version, obj.stream_number, obj.object_payload) 'Finished doing POW, nonce: %s, time: %ss', nonce, time.time() - t)
logging.debug("Object vector is {}".format(base64.b16encode(obj.vector).decode())) obj = structure.Object(
nonce, obj.expires_time, obj.object_type, obj.version,
obj.stream_number, obj.object_payload)
logging.debug(
'Object vector is %s', base64.b16encode(obj.vector).decode())
with shared.objects_lock: with shared.objects_lock:
shared.objects[obj.vector] = obj shared.objects[obj.vector] = obj

68
minode/structure.py
View File

@ -2,8 +2,8 @@
import base64 import base64
import hashlib import hashlib
import logging import logging
import struct
import socket import socket
import struct
import time import time
from . import shared from . import shared
@ -44,17 +44,22 @@ class VarInt(object):
class Object(object): class Object(object):
def __init__(self, nonce, expires_time, object_type, version, stream_number, object_payload): def __init__(
self, nonce, expires_time, object_type, version,
stream_number, object_payload
):
self.nonce = nonce self.nonce = nonce
self.expires_time = expires_time self.expires_time = expires_time
self.object_type = object_type self.object_type = object_type
self.version = version self.version = version
self.stream_number = stream_number self.stream_number = stream_number
self.object_payload = object_payload self.object_payload = object_payload
self.vector = hashlib.sha512(hashlib.sha512(self.to_bytes()).digest()).digest()[:32] self.vector = hashlib.sha512(hashlib.sha512(
self.to_bytes()).digest()).digest()[:32]
def __repr__(self): def __repr__(self):
return 'object, vector: {}'.format(base64.b16encode(self.vector).decode()) return 'object, vector: {}'.format(
base64.b16encode(self.vector).decode())
@classmethod @classmethod
def from_message(cls, m): def from_message(cls, m):
@ -65,15 +70,19 @@ class Object(object):
version = VarInt.from_bytes(payload[:version_varint_length]).n version = VarInt.from_bytes(payload[:version_varint_length]).n
payload = payload[version_varint_length:] payload = payload[version_varint_length:]
stream_number_varint_length = VarInt.length(payload[0]) stream_number_varint_length = VarInt.length(payload[0])
stream_number = VarInt.from_bytes(payload[:stream_number_varint_length]).n stream_number = VarInt.from_bytes(
payload[:stream_number_varint_length]).n
payload = payload[stream_number_varint_length:] payload = payload[stream_number_varint_length:]
return cls(nonce, expires_time, object_type, version, stream_number, payload) return cls(
nonce, expires_time, object_type, version, stream_number, payload)
def to_bytes(self): def to_bytes(self):
payload = b'' payload = b''
payload += self.nonce payload += self.nonce
payload += struct.pack('>QL', self.expires_time, self.object_type) payload += struct.pack('>QL', self.expires_time, self.object_type)
payload += VarInt(self.version).to_bytes() + VarInt(self.stream_number).to_bytes() payload += (
VarInt(self.version).to_bytes()
+ VarInt(self.stream_number).to_bytes())
payload += self.object_payload payload += self.object_payload
return payload return payload
@ -82,25 +91,37 @@ class Object(object):
def is_valid(self): def is_valid(self):
if self.is_expired(): if self.is_expired():
logging.debug('Invalid object {}, reason: expired'.format(base64.b16encode(self.vector).decode())) logging.debug(
'Invalid object %s, reason: expired',
base64.b16encode(self.vector).decode())
return False return False
if self.expires_time > time.time() + 28 * 24 * 3600 + 3 * 3600: if self.expires_time > time.time() + 28 * 24 * 3600 + 3 * 3600:
logging.warning('Invalid object {}, reason: end of life too far in the future'.format(base64.b16encode(self.vector).decode())) logging.warning(
'Invalid object %s, reason: end of life too far in the future',
base64.b16encode(self.vector).decode())
return False return False
if len(self.object_payload) > 2**18: if len(self.object_payload) > 2**18:
logging.warning('Invalid object {}, reason: payload is too long'.format(base64.b16encode(self.vector).decode())) logging.warning(
'Invalid object %s, reason: payload is too long',
base64.b16encode(self.vector).decode())
return False return False
if self.stream_number != 1: if self.stream_number != 1:
logging.warning('Invalid object {}, reason: not in stream 1'.format(base64.b16encode(self.vector).decode())) logging.warning(
'Invalid object %s, reason: not in stream 1',
base64.b16encode(self.vector).decode())
return False return False
data = self.to_bytes()[8:] data = self.to_bytes()[8:]
length = len(data) + 8 + shared.payload_length_extra_bytes # length = len(data) + 8 + shared.payload_length_extra_bytes
dt = max(self.expires_time - time.time(), 0) # dt = max(self.expires_time - time.time(), 0)
h = hashlib.sha512(data).digest() h = hashlib.sha512(data).digest()
pow_value = int.from_bytes(hashlib.sha512(hashlib.sha512(self.nonce + h).digest()).digest()[:8], 'big') pow_value = int.from_bytes(
hashlib.sha512(hashlib.sha512(
self.nonce + h).digest()).digest()[:8], 'big')
target = self.pow_target() target = self.pow_target()
if target < pow_value: if target < pow_value:
logging.warning('Invalid object {}, reason: insufficient pow'.format(base64.b16encode(self.vector).decode())) logging.warning(
'Invalid object %s, reason: insufficient pow',
base64.b16encode(self.vector).decode())
return False return False
return True return True
@ -108,7 +129,10 @@ class Object(object):
data = self.to_bytes()[8:] data = self.to_bytes()[8:]
length = len(data) + 8 + shared.payload_length_extra_bytes length = len(data) + 8 + shared.payload_length_extra_bytes
dt = max(self.expires_time - time.time(), 0) dt = max(self.expires_time - time.time(), 0)
return int(2 ** 64 / (shared.nonce_trials_per_byte * (length + (dt * length) / (2 ** 16)))) return int(
2 ** 64 / (
shared.nonce_trials_per_byte * (
length + (dt * length) / (2 ** 16))))
def pow_initial_hash(self): def pow_initial_hash(self):
return hashlib.sha512(self.to_bytes()[8:]).digest() return hashlib.sha512(self.to_bytes()[8:]).digest()
@ -121,7 +145,8 @@ class NetAddrNoPrefix(object):
self.port = port self.port = port
def __repr__(self): def __repr__(self):
return 'net_addr_no_prefix, services: {}, host: {}, port {}'.format(self.services, self.host, self.port) return 'net_addr_no_prefix, services: {}, host: {}, port {}'.format(
self.services, self.host, self.port)
def to_bytes(self): def to_bytes(self):
b = b'' b = b''
@ -137,7 +162,8 @@ class NetAddrNoPrefix(object):
@classmethod @classmethod
def from_bytes(cls, b): def from_bytes(cls, b):
services, host, port = struct.unpack('>Q16sH', b) services, host, port = struct.unpack('>Q16sH', b)
if host.startswith(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xFF\xFF'): if host.startswith(
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xFF\xFF'):
host = socket.inet_ntop(socket.AF_INET, host[-4:]) host = socket.inet_ntop(socket.AF_INET, host[-4:])
else: else:
host = socket.inet_ntop(socket.AF_INET6, host) host = socket.inet_ntop(socket.AF_INET6, host)
@ -152,8 +178,8 @@ class NetAddr(object):
self.port = port self.port = port
def __repr__(self): def __repr__(self):
return 'net_addr, stream: {}, services: {}, host: {}, port {}'\ return 'net_addr, stream: {}, services: {}, host: {}, port {}'.format(
.format(self.stream, self.services, self.host, self.port) self.stream, self.services, self.host, self.port)
def to_bytes(self): def to_bytes(self):
b = b'' b = b''
@ -164,6 +190,6 @@ class NetAddr(object):
@classmethod @classmethod
def from_bytes(cls, b): def from_bytes(cls, b):
t, stream, net_addr = struct.unpack('>QI26s', b) stream, net_addr = struct.unpack('>QI26s', b)[1:]
n = NetAddrNoPrefix.from_bytes(net_addr) n = NetAddrNoPrefix.from_bytes(net_addr)
return cls(n.services, n.host, n.port, stream) return cls(n.services, n.host, n.port, stream)