Exemple #1
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def downloader_connected_to_proxy(original_data, sharerid, local_reader, local_writer):
    downloaderid = protocol.get_unique_id()
    downloaders[downloaderid] = asyncio.Queue()
    q = downloaders[downloaderid]

    remote_writer = sharers[sharerid]
    remote_writer.write(protocol.encode(downloaderid, protocol.CONNECTED))
    remote_writer.write(protocol.encode(downloaderid, protocol.PACKET, original_data))

    local_connection = proxy.Connection(
        lambda: local_reader.read(1024),
        lambda data: local_writer.write(data)
    )

    remote_connection = proxy.Connection(
        lambda: q.get(),
        lambda data: remote_writer.write(protocol.encode(downloaderid, protocol.PACKET, data))
    )

    p = proxy.Proxy(local_connection, remote_connection)
    yield from p.run()
    local_writer.close()
    remote_writer.write(protocol.encode(downloaderid, protocol.DISCONNECTED))
    print("all done")

    del downloaders[downloaderid]
    def wrapper(self, to, *args, **kwargs):
        meth = getattr(self, fn.__name__)
        data = fn(self, *args, **kwargs)
        data = protocol.encode((meth, data))

        for sub in to:
            sub.send(data)
Exemple #3
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    def write_json(self, json):
        self.content_type = ("Content-Type", "application/json; charset=UTF-8")

        self.headers += [self.content_type]
        self.start_response("200 OK", self.headers)

        self.result = [protocol.encode(json)]
        self.log_request()
        self.process_result()
Exemple #4
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    def write_json(self, json):
        self.content_type = ("Content-Type", "application/json; charset=UTF-8")

        self.headers += [self.content_type]
        self.start_response("200 OK", self.headers)

        self.result = [protocol.encode(json)]
        self.log_request()
        self.process_result()
Exemple #5
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def connect_to_server():
    sslcontext = ssl.create_default_context()
    sslcontext.load_verify_locations("server.crt")

    create_new_certificate = True

    if os.path.isfile("certificate") and os.path.isfile("privatekey"):
        logging.info("Going to reuse existing certificate.")
        sslcontext.load_cert_chain(certfile="certificate", keyfile="privatekey")
        create_new_certificate = False

    logging.info("Connecting...")
    sreader, swriter = yield from asyncio.open_connection("share.fkmzblt.net", 443, ssl=sslcontext)

    readbuffer = b""
    data = yield from protocol.read_next_packet(sreader, readbuffer)
    readbuffer = data[3]
    if data[1] == protocol.DATA:
        data = data[2].decode()
        if data.startswith("id"):
            host = "{}.fkmzblt.net".format(data[2:])
            fileid = protocol.get_unique_id()
            logging.info("File shared at: https://{}/{}".format(host, fileid))

            if create_new_certificate:
                logging.info("Making a new certificate.")
                req = create_certificate_signing_request(host)
                swriter.write(protocol.encode(data[2:], protocol.DATA, b"cert" + req))

    if create_new_certificate:
        data = yield from protocol.read_next_packet(sreader, readbuffer)
        if data[1] == protocol.DATA:
            logging.info("Server signed our new certificate.")
            f = open("certificate", "wb")
            cert = data[2][4:]
            f.write(cert)
            cert = open("server.crt", "rb").read()
            f.write(cert)
            f.close()

    asyncio.async(run_local_server(host, args.filename, fileid))

    while True:
        data = yield from protocol.read_next_packet(sreader, readbuffer)
        if not data:
            break
        readbuffer = data[3]

        if data[1] == protocol.CONNECTED:
            task = asyncio.async(handle_connection(data[0], swriter))
            downloaders[data[0]] = (asyncio.Queue(), task)
        elif data[1] == protocol.PACKET:
            yield from downloaders[data[0]][0].put(data[2])
        elif data[1] == protocol.DISCONNECTED:
            logging.info("Downloader ({}) disconnected.".format(data[0]))
            downloaders[data[0]][1].cancel()
            del downloaders[data[0]]
Exemple #6
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def write(data):
    """Encode data via protocol.py and attempt to publish it on
	the blockchain within one transaction of many outputs.
	"""
    proxy = bitcoin.rpc.Proxy()
    addresses = protocol.encode(data)
    mapping = {}
    for address in addresses:
        mapping[address] = 0.00005430
    return proxy.sendmany('', mapping)
Exemple #7
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def write(data):
	"""Encode data via protocol.py and attempt to publish it on
	the blockchain within one transaction of many outputs.
	"""
	proxy = bitcoin.rpc.Proxy()
	addresses = protocol.encode(data)
	mapping = {}
	for address in addresses:
		mapping[address] = 0.00005430
	return proxy.sendmany('', mapping)
Exemple #8
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def handle_connection(connectionid, remote_writer):
    logging.info("Downloader ({}) connected.".format(connectionid))
    q = downloaders[connectionid][0]
    local_reader, local_writer = yield from asyncio.open_connection("127.0.0.1", 6666)

    local_connection = proxy.Connection(
        lambda: local_reader.read(1024),
        lambda data: local_writer.write(data)
    )

    remote_connection = proxy.Connection(
        lambda: q.get(),
        lambda data: remote_writer.write(protocol.encode(connectionid, protocol.PACKET, data))
    )


    p = proxy.Proxy(local_connection, remote_connection)
    yield from p.run()
    remote_writer.write(protocol.encode(connectionid, protocol.DISCONNECTED))
    logging.info("Downloader ({}) disconnected.".format(connectionid))
Exemple #9
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def sharer_handle_data(sharerid, reader, writer, data):
    if data.startswith(b"cert"):
        certificate = data[4:]

        ca_cert = crypto.load_certificate(crypto.FILETYPE_PEM, open("server.crt", "rb").read())
        ca_key = crypto.load_privatekey(crypto.FILETYPE_PEM, open("server.key", "rb").read())

        req = crypto.load_certificate_request(crypto.FILETYPE_PEM, certificate)

        cert = crypto.X509()
        cert.set_subject(req.get_subject())
        cert.set_serial_number(int(random.random() * sys.maxsize))
        cert.gmtime_adj_notBefore(0)
        cert.gmtime_adj_notAfter(24*60*60)
        cert.set_issuer(ca_cert.get_subject())
        cert.set_pubkey(req.get_pubkey())
        cert.sign(ca_key, "sha1")

        signed_cert = crypto.dump_certificate(crypto.FILETYPE_PEM, cert)
        writer.write(protocol.encode(sharerid, protocol.DATA, b"cert" + signed_cert))
Exemple #10
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def sharer_client_connected(reader, writer):
    cert = writer.get_extra_info("socket").getpeercert()
    if cert:
        print(cert)
        for sub in cert.get("subject", ()):
            for key, value in sub:
                if key == "commonName":
                    sharerid = value.replace(".fkmzblt.net", "")
    else:
        sharerid = protocol.get_unique_id()
    print("Sharerid: {}".format(sharerid))
    sharers[sharerid] = writer
    writer.write(protocol.encode(sharerid, protocol.DATA, b"id" + sharerid.encode()))

    try:
        readbuffer = b""
        while True:
            packet = yield from protocol.read_next_packet(reader, readbuffer)
            if not packet:
                return
            readbuffer = packet[3]
            connectionid = packet[0]

            if not connectionid in downloaders and not connectionid in sharers:
                #This happens when a downloader disconnected from us but the
                #uploader still sent us packets.
                continue

            if packet[1] == protocol.PACKET:
                yield from downloaders[connectionid].put(packet[2])
            elif packet[1] == protocol.DISCONNECTED:
                print("downloader disconnected")
                yield from downloaders[connectionid].put(None)
            elif packet[1] == protocol.DATA:
                print("data")
                yield from sharer_handle_data(sharerid, reader, writer, packet[2])
    finally:
        del sharers[sharerid]
    if i=="Y":
        break
    elif i=="N":
        continue

print "\nenter 'user'<space>'username' only to change reciepent"
while True:
    msg=raw_input("\n\nEnter your messege  >>>")

    msglist=msg.split(" ")
    if len(msglist)>0:
        if msglist[0]=="user":
            reciepent = msglist[1]
            protocol.setRec(msglist[1])
            continue

        if reciepent == "":
            reciepent = raw_input("\nPlease enter reciepent >> ")
            protocol.setRec(reciepent)

        elif msg=="exit":
            exit()
    tele=protocol.encode(username,msg)
    client.publish("shekharApp/chat/"+reciepent,tele,1)






Exemple #12
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def controller(tasks_file, client_port, node_port, worker_port, debug):
    ''' Launch a controller process which publishes task definitions, keeps
    track of node states and allows clients to connect to request state and
    send commands. '''

    # Static configuration.
    logging.basicConfig(level=logging.DEBUG if debug else logging.INFO)
    client_address = f'tcp://*:{client_port}'
    node_address = f'tcp://*:{node_port}'
    worker_address = f'tcp://*:{worker_port}'
    publish_ms = 1000

    context = zmq.Context()
    # Client connections are one off REQ-ROUTER.
    client = context.socket(zmq.ROUTER)
    client.bind(client_address)
    # Node connections are DEALER-ROUTER. Recieve node heartbeats to track
    # operating nodes. Send on shutdown commands when requested by client.
    node = context.socket(zmq.ROUTER)
    node.bind(node_address)
    # Worker connections are PUB-SUB. Interaction with workers is one-way.
    worker = context.socket(zmq.PUB)
    worker.bind(worker_address)
    # Poll only the listening ports.
    poller = zmq.Poller()
    poller.register(client, zmq.POLLIN)
    poller.register(node, zmq.POLLIN)

    # Keep node states as published by connection id.
    tracked_nodes = {}
    # Keep time of last heartbeat by connection id.
    node_heartbeats = {}
    # Last time the task list was published.
    last_publish = datetime.now()
    # Current task list being sent out.
    task_def_message = protocol.encode(json.load(tasks_file))

    logging.info(f'Accepting client connections on {client_address}')
    logging.info(f'Registering nodes on {node_address}')
    logging.info(f'Publishing tasks on {worker_address}')

    while True:
        # Wait for incoming client or node messages. Timeout functions as the
        # task publishing frequency. This should be the only blocking I/O in
        # the loop.
        socks = dict(poller.poll(timeout=publish_ms))
        now = datetime.now()
        # Discard any node states that haven't been heard from in a while.
        new_tracked_nodes = {
            ident: state
            for ident, state in tracked_nodes.items()
            if (now - node_heartbeats[ident]) < timedelta(seconds=3)
        }
        lost_nodes = [
            tracked_nodes[ident]['name']
            for ident in set(tracked_nodes) - set(new_tracked_nodes)]
        if lost_nodes:
            logging.info('Dropped nodes: ' + str(lost_nodes))
        tracked_nodes = new_tracked_nodes
        # Respond immediately if there was a client request.
        if client in socks:
            ident, mid, request = client.recv_multipart()
            assert mid == b''
            try:
                command, request = protocol.decode_client_request(request)
                if command == 'state':
                    logging.debug('Responding to state request.')
                    response = protocol.msg_controller_state(tracked_nodes)
                elif command == 'shutdown':
                    node_ident = request['node']
                    if node_ident in tracked_nodes:
                        node_name = tracked_nodes[node_ident]['name']
                        logging.info(f'Sending shutdown request to node {node_name}.')
                        node.send_multipart([node_ident, b'', protocol.MSG_NODE_SHUTDOWN])
                        response = protocol.MSG_OK
                    else:
                        logging.warn(f'Received shutdown request for unknown node {node_ident}.')
                        response = protocol.MSG_UNKNOWN_NODE
            except ValueError as e:
                logging.warn(str(e))
                response = protocol.MSG_BAD_COMMAND
            client.send_multipart([ident, b'', response])
        # Update node tracking if there was a heartbeat.
        if node in socks:
            ident, mid, message = node.recv_multipart()
            assert mid == b''
            try:
                is_new = ident not in tracked_nodes
                tracked_nodes[ident] = protocol.decode_node_heartbeat(message)
                node_heartbeats[ident] = now
                node_name = tracked_nodes[ident]['name']
                if is_new:
                    logging.info(f'Registered new node: {node_name}')
                else:
                    logging.debug(f'Received heartbeat from {node_name}')
            except ValueError as e:
                logging.warning(str(e))
        # Re-publish the task definition if period has expired.
        if (now - last_publish) > timedelta(milliseconds=publish_ms):
            worker.send(task_def_message)
            last_publish = now
            logging.debug(f'Sent task definition on {worker_address}')
Exemple #13
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 def respond(self, data, connection):
     if self.debug:
         print(f"Responding: {data}\n\n")
         print(f"{connection}")
     response = protocol.encode(data)
     connection.send(response)
 def destructor(self, to):
     meth = getattr(self, 'destructor')
     data = protocol.encode((meth, ()))
     to.send(data)
 def wrapper(self, to, *args, **kwargs):
     data = fn(self, *args, **kwargs)
     to.send(protocol.encode((type(self), (id(self), data))))
Exemple #16
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 def encode(self, data):
     """
     Wrapper around the protocol's frame encoding.
     """
     return protocol.encode(data)
Exemple #17
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def send_message(sock, command):
    sock.send(protocol.encode(command))
Exemple #18
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def price_without_fee(data):
    addresses = protocol.encode(data)
    return 0.00005430 * len(addresses)
Exemple #19
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def price_without_fee(data):
	addresses = protocol.encode(data)
	return 0.00005430 * len(addresses)
Exemple #20
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 def encode(self, data):
     """
     Wrapper around the protocol's frame encoding.
     """
     return protocol.encode(data)