Exemple #1
0
    def addTransaction(self, devPublicKey, encryptedObj):
        global gwPvt
        global gwPub
        t1 = time.time()
        blk = chainFunctions.findBlock(devPublicKey)

        if (blk != False and blk.index > 0):
            devAESKey = findAESKey(devPublicKey)
            if (devAESKey != False):
                # plainObject contains [Signature + Time + Data]

                plainObject = criptoFunctions.decryptAES(
                    encryptedObj, devAESKey)
                signature = plainObject[:-20]  # remove the last 20 chars
                devTime = plainObject[-20:
                                      -4]  # remove the 16 char of timestamp
                deviceData = plainObject[
                    -4:]  # retrieve the las 4 chars which are the data

                d = devTime + deviceData
                isSigned = criptoFunctions.signVerify(d, signature,
                                                      devPublicKey)

                if isSigned:
                    deviceInfo = DeviceInfo.DeviceInfo(signature, devTime,
                                                       deviceData)
                    nextInt = blk.transactions[len(blk.transactions) -
                                               1].index + 1
                    signData = criptoFunctions.signInfo(gwPvt, str(deviceInfo))
                    gwTime = "{:.0f}".format(((time.time() * 1000) * 1000))
                    # code responsible to create the hash between Info nodes.
                    prevInfoHash = criptoFunctions.calculateTransactionHash(
                        chainFunctions.getLatestBlockTransaction(blk))

                    transaction = Transaction.Transaction(
                        nextInt, prevInfoHash, gwTime, deviceInfo, signData)

                    # send to consensus
                    #if not consensus(newBlockLedger, gwPub, devPublicKey):
                    #    return "Not Approved"

                    chainFunctions.addBlockTransaction(blk, transaction)
                    logger.debug(
                        "block added locally... now sending to peers..")
                    t2 = time.time()
                    logger.debug(
                        "=====2=====>time to add transaction in a block: " +
                        '{0:.12f}'.format((t2 - t1) * 1000))
                    sendTransactionToPeers(
                        devPublicKey, transaction
                    )  # --->> this function should be run in a different thread.
                    #print("all done")
                    return "ok!"
                else:
                    return "Invalid Signature"
            return "key not found"
Exemple #2
0
    def parse(self, stream):
        self.stream = stream
        in_bytes = bytearray(stream)
        index = 0
        # append packet to buffer
        for idx in range(len(in_bytes)):
            self.bytes.append(in_bytes[idx])
            if len(self.bytes) < PACKET_LEN:
                continue
            # check packet validity at this index
            if (
                index + PACKET_LEN <= len(self.bytes)
                and self.bytes[index] == IN_START1
                and self.bytes[index + 1] == IN_START2
                and self.bytes[index + PACKET_LEN - 1] == IN_END
            ):
                # start parsing
                # index+2 : category1, index+3 : category2, index+4 : ID, index+5 : command
                # index+6~index+7 : Data1, index+8~index+9 : Data2, ..., index+12~index+13 : Data4
                # index+14 : End byte
                device_info = DeviceInfo()
                device_info.itemtype = 1  # 0: queue item type
                device_info.cat1 = int(self.bytes[index + 2])  # 1: cat1
                device_info.cat2 = int(self.bytes[index + 3])  # 2: cat2
                device_info.devid = int(self.bytes[index + 4])  # 3: device ID
                device_info.cmd = int(self.bytes[index + 5])  # 4: command

                # ping response
                if device_info.cmd == CMD_PING:
                    # print '    Command : Ping response'
                    logging.warning("Command received : Ping response")
                    device_info.name = "User device"  # name
                    device_info.loc = "NA"  # location
                    device_info.time = int(time.time())  # timestamp
                    # pass to callback function
                    self.cmd_callback(device_info)
                    # empty buffer
                    self.bytes = list()
                # register device
                elif device_info.cmd == CMD_REGISTER:
                    # print '    Command : Register device'
                    logging.warning("Command received : Register device")
                    device_info.cmd1 = int(self.bytes[index + 6])  # 5: available cmd 1
                    device_info.cmd1dtype = int(self.bytes[index + 7])  # 6: available cmd 1 - data type
                    device_info.cmd2 = int(self.bytes[index + 8])  # 7:
                    device_info.cmd2dtype = int(self.bytes[index + 9])  # 8:
                    device_info.cmd3 = int(self.bytes[index + 10])  # 9:
                    device_info.cmd3dtype = int(self.bytes[index + 11])  # 10:
                    device_info.cmd4 = int(self.bytes[index + 12])  # 11: available cmd 4
                    device_info.cmd4dtype = int(self.bytes[index + 13])  # 12: available cmd 4 - data type
                    device_info.name = "User device"  # 13: name
                    device_info.loc = "NA"  # 14: location
                    device_info.time = int(time.time())  # 15: timestamp
                    # put in queue
                    self.recv_queue.put(device_info)
                    # empty buffer
                    self.bytes = list()
                # update sensor value
                elif device_info.cmd == CMD_UPDATE:
                    data1, data2, data3, data4 = 0x0000, 0x0000, 0x0000, 0x0000
                    # you have to check negative value
                    if self.bytes[index + 6] & 0x80 == 0x80:
                        data1 = int(self.bytes[index + 6] ^ 0xFF) << 8 | int(self.bytes[index + 7] ^ 0xFF)
                        data1 *= -1
                    else:
                        data1 = (int(self.bytes[index + 6]) << 8) | int(self.bytes[index + 7])
                    if self.bytes[index + 8] & 0x80 == 0x80:
                        data2 = int(self.bytes[index + 8] ^ 0xFF) << 8 | int(self.bytes[index + 9] ^ 0xFF)
                        data2 *= -1
                    else:
                        data2 = (int(self.bytes[index + 8]) << 8) | int(self.bytes[index + 9])
                    if self.bytes[index + 10] & 0x80 == 0x80:
                        data3 = int(self.bytes[index + 10] ^ 0xFF) << 8 | int(self.bytes[index + 11] ^ 0xFF)
                        data3 *= -1
                    else:
                        data3 = (int(self.bytes[index + 10]) << 8) | int(self.bytes[index + 11])
                    if self.bytes[index + 12] & 0x80 == 0x80:
                        data4 = int(self.bytes[index + 12] ^ 0xFF) << 8 | int(self.bytes[index + 13] ^ 0xFF)
                        data4 *= -1
                    else:
                        data4 = (int(self.bytes[index + 12]) << 8) | int(self.bytes[index + 13])
                    # print '    Command : Update sensor value (%d, %d, %d, %d)' % (data1, data2, data3, data4)
                    logging.warning(
                        "Command received : Update sensor value (%d, %d, %d, %d)" % (data1, data2, data3, data4)
                    )
                    device_info.data1 = data1  # 5: int data 1
                    device_info.data2 = data2  # 6: int data 2
                    device_info.data3 = data3  # 7: int data 3
                    device_info.data4 = data4  # 8: int data 4
                    device_info.name = "User device"  # 13: name
                    device_info.loc = "NA"  # 14: location
                    device_info.time = int(time.time())  # 15: timestamp
                    # put in queue
                    self.recv_queue.put(device_info)
                    # empty buffer
                    self.bytes = list()
                # control signal response
                elif device_info.cmd == CMD_CONTROL:
                    data1, data2, data3, data4 = 0x0000, 0x0000, 0x0000, 0x0000
                    # you have to check negative value
                    if self.bytes[index + 6] & 0x80 == 0x80:
                        data1 = int(self.bytes[index + 6] ^ 0xFF) << 8 | int(self.bytes[index + 7] ^ 0xFF)
                        data1 *= -1
                    else:
                        data1 = (int(self.bytes[index + 6]) << 8) | int(self.bytes[index + 7])
                    if self.bytes[index + 8] & 0x80 == 0x80:
                        data2 = int(self.bytes[index + 8] ^ 0xFF) << 8 | int(self.bytes[index + 9] ^ 0xFF)
                        data2 *= -1
                    else:
                        data2 = (int(self.bytes[index + 8]) << 8) | int(self.bytes[index + 9])
                    if self.bytes[index + 10] & 0x80 == 0x80:
                        data3 = int(self.bytes[index + 10] ^ 0xFF) << 8 | int(self.bytes[index + 11] ^ 0xFF)
                        data3 *= -1
                    else:
                        data3 = (int(self.bytes[index + 10]) << 8) | int(self.bytes[index + 11])
                    if self.bytes[index + 12] & 0x80 == 0x80:
                        data4 = int(self.bytes[index + 12] ^ 0xFF) << 8 | int(self.bytes[index + 13] ^ 0xFF)
                        data4 *= -1
                    else:
                        data4 = (int(self.bytes[index + 12]) << 8) | int(self.bytes[index + 13])
                    print "    Command : result of control request (%d, %d, %d, %d)" % (data1, data2, data3, data4)
                    logging.warning("Command received : control result (%d, %d, %d, %d)" % (data1, data2, data3, data4))
                    device_info.data1 = data1  # int data 1
                    device_info.data2 = data2  # int data 2
                    device_info.data3 = data3  # int data 3
                    device_info.data4 = data4  # int data 4
                    device_info.name = "User device"  # name
                    device_info.loc = "NA"  # location
                    device_info.time = int(time.time())  # timestamp
                    # pass to callback function
                    self.cmd_callback(device_info)
                    # empty buffer
                    self.bytes = list()
                else:
                    # print '    Undefined command !!'
                    logging.warning("Undefined command found!!")
            # resize buffer
            if len(self.bytes) > 0:
                del self.bytes[0]
        # End of parse function
        return
Exemple #3
0
    def parse(self, stream):
        self.stream = stream
        in_bytes = bytearray(stream)
        index = 0
        # append packet to buffer
        for idx in range(len(in_bytes)):
            self.bytes.append(in_bytes[idx])
            if len(self.bytes) < PACKET_LEN:
                continue
            # check packet validity at this index
            if (index + PACKET_LEN <= len(self.bytes)
                    and self.bytes[index] == IN_START1
                    and self.bytes[index + 1] == IN_START2
                    and self.bytes[index + PACKET_LEN - 1] == IN_END):
                # start parsing
                # index+2 : category1, index+3 : category2, index+4 : ID, index+5 : command
                # index+6~index+7 : Data1, index+8~index+9 : Data2, ..., index+12~index+13 : Data4
                # index+14 : End byte
                device_info = DeviceInfo()
                device_info.itemtype = 1  # 0: queue item type
                device_info.cat1 = int(self.bytes[index + 2])  # 1: cat1
                device_info.cat2 = int(self.bytes[index + 3])  # 2: cat2
                device_info.devid = int(self.bytes[index + 4])  # 3: device ID
                device_info.cmd = int(self.bytes[index + 5])  # 4: command

                # ping response
                if device_info.cmd == CMD_PING:
                    #print '    Command : Ping response'
                    logging.warning('Command received : Ping response')
                    device_info.name = 'User device'  # name
                    device_info.loc = 'NA'  # location
                    device_info.time = int(time.time())  # timestamp
                    # pass to callback function
                    self.cmd_callback(device_info)
                    # empty buffer
                    self.bytes = list()
                # register device
                elif device_info.cmd == CMD_REGISTER:
                    #print '    Command : Register device'
                    logging.warning('Command received : Register device')
                    device_info.cmd1 = int(self.bytes[index +
                                                      6])  # 5: available cmd 1
                    device_info.cmd1dtype = int(
                        self.bytes[index +
                                   7])  # 6: available cmd 1 - data type
                    device_info.cmd2 = int(self.bytes[index + 8])  # 7:
                    device_info.cmd2dtype = int(self.bytes[index + 9])  # 8:
                    device_info.cmd3 = int(self.bytes[index + 10])  # 9:
                    device_info.cmd3dtype = int(self.bytes[index + 11])  # 10:
                    device_info.cmd4 = int(
                        self.bytes[index + 12])  # 11: available cmd 4
                    device_info.cmd4dtype = int(
                        self.bytes[index +
                                   13])  # 12: available cmd 4 - data type
                    device_info.name = 'User device'  # 13: name
                    device_info.loc = 'NA'  # 14: location
                    device_info.time = int(time.time())  # 15: timestamp
                    # put in queue
                    self.recv_queue.put(device_info)
                    # empty buffer
                    self.bytes = list()
                # update sensor value
                elif device_info.cmd == CMD_UPDATE:
                    data1, data2, data3, data4 = 0x0000, 0x0000, 0x0000, 0x0000
                    # you have to check negative value
                    if self.bytes[index + 6] & 0x80 == 0x80:
                        data1 = int(self.bytes[index + 6] ^ 0xff) << 8 | int(
                            self.bytes[index + 7] ^ 0xff)
                        data1 *= -1
                    else:
                        data1 = (int(self.bytes[index + 6]) << 8) | int(
                            self.bytes[index + 7])
                    if self.bytes[index + 8] & 0x80 == 0x80:
                        data2 = int(self.bytes[index + 8] ^ 0xff) << 8 | int(
                            self.bytes[index + 9] ^ 0xff)
                        data2 *= -1
                    else:
                        data2 = (int(self.bytes[index + 8]) << 8) | int(
                            self.bytes[index + 9])
                    if self.bytes[index + 10] & 0x80 == 0x80:
                        data3 = int(self.bytes[index + 10] ^ 0xff) << 8 | int(
                            self.bytes[index + 11] ^ 0xff)
                        data3 *= -1
                    else:
                        data3 = (int(self.bytes[index + 10]) << 8) | int(
                            self.bytes[index + 11])
                    if self.bytes[index + 12] & 0x80 == 0x80:
                        data4 = int(self.bytes[index + 12] ^ 0xff) << 8 | int(
                            self.bytes[index + 13] ^ 0xff)
                        data4 *= -1
                    else:
                        data4 = (int(self.bytes[index + 12]) << 8) | int(
                            self.bytes[index + 13])
                    #print '    Command : Update sensor value (%d, %d, %d, %d)' % (data1, data2, data3, data4)
                    logging.warning(
                        'Command received : Update sensor value (%d, %d, %d, %d)'
                        % (data1, data2, data3, data4))
                    device_info.data1 = data1  # 5: int data 1
                    device_info.data2 = data2  # 6: int data 2
                    device_info.data3 = data3  # 7: int data 3
                    device_info.data4 = data4  # 8: int data 4
                    device_info.name = 'User device'  # 13: name
                    device_info.loc = 'NA'  # 14: location
                    device_info.time = int(time.time())  # 15: timestamp
                    # put in queue
                    self.recv_queue.put(device_info)
                    # empty buffer
                    self.bytes = list()
                # control signal response
                elif device_info.cmd == CMD_CONTROL:
                    data1, data2, data3, data4 = 0x0000, 0x0000, 0x0000, 0x0000
                    # you have to check negative value
                    if self.bytes[index + 6] & 0x80 == 0x80:
                        data1 = int(self.bytes[index + 6] ^ 0xff) << 8 | int(
                            self.bytes[index + 7] ^ 0xff)
                        data1 *= -1
                    else:
                        data1 = (int(self.bytes[index + 6]) << 8) | int(
                            self.bytes[index + 7])
                    if self.bytes[index + 8] & 0x80 == 0x80:
                        data2 = int(self.bytes[index + 8] ^ 0xff) << 8 | int(
                            self.bytes[index + 9] ^ 0xff)
                        data2 *= -1
                    else:
                        data2 = (int(self.bytes[index + 8]) << 8) | int(
                            self.bytes[index + 9])
                    if self.bytes[index + 10] & 0x80 == 0x80:
                        data3 = int(self.bytes[index + 10] ^ 0xff) << 8 | int(
                            self.bytes[index + 11] ^ 0xff)
                        data3 *= -1
                    else:
                        data3 = (int(self.bytes[index + 10]) << 8) | int(
                            self.bytes[index + 11])
                    if self.bytes[index + 12] & 0x80 == 0x80:
                        data4 = int(self.bytes[index + 12] ^ 0xff) << 8 | int(
                            self.bytes[index + 13] ^ 0xff)
                        data4 *= -1
                    else:
                        data4 = (int(self.bytes[index + 12]) << 8) | int(
                            self.bytes[index + 13])
                    print '    Command : result of control request (%d, %d, %d, %d)' % (
                        data1, data2, data3, data4)
                    logging.warning(
                        'Command received : control result (%d, %d, %d, %d)' %
                        (data1, data2, data3, data4))
                    device_info.data1 = data1  # int data 1
                    device_info.data2 = data2  # int data 2
                    device_info.data3 = data3  # int data 3
                    device_info.data4 = data4  # int data 4
                    device_info.name = 'User device'  # name
                    device_info.loc = 'NA'  # location
                    device_info.time = int(time.time())  #timestamp
                    # pass to callback function
                    self.cmd_callback(device_info)
                    # empty buffer
                    self.bytes = list()
                else:
                    #print '    Undefined command !!'
                    logging.warning('Undefined command found!!')
            # resize buffer
            if len(self.bytes) > 0:
                del self.bytes[0]
        # End of parse function
        return
 def load_devices(self):
     results = self.db.select_all_device()
     logging.warning('Load device info from DB: count = '+str(len(results)))
     for row in results:
         device_info = DeviceInfo()
         device_info.objtype = 1    # queue item type
         device_info.cat1 = int(row[1])  # cat1
         device_info.cat2 = int(row[2])  # cat2
         device_info.devid = int(row[3]) # device ID
         device_info.cmd = 0x11  # command (set dummy value)
         device_info.cmd1 = int(row[7])  # available cmd 1
         device_info.cmd1dtype = int(row[11])  # available cmd 1 - data type
         device_info.cmd2 = int(row[8])
         device_info.cmd2dtype = int(row[12])
         device_info.cmd3 = int(row[9])
         device_info.cmd3dtype = int(row[13])
         device_info.cmd4 = int(row[10])  # available cmd 4
         device_info.cmd4dtype = int(row[14])  # available cmd 4 - data type
         device_info.name = row[4]  # name
         device_info.loc = row[5]  # location
         device_info.time = int(row[6])  # timestamp
         self.add_device_to_list(device_info)
     return
Exemple #5
0
 def load_devices(self):
     results = self.db.select_all_device()
     logging.warning('Load device info from DB: count = ' +
                     str(len(results)))
     for row in results:
         device_info = DeviceInfo()
         device_info.objtype = 1  # queue item type
         device_info.cat1 = int(row[1])  # cat1
         device_info.cat2 = int(row[2])  # cat2
         device_info.devid = int(row[3])  # device ID
         device_info.cmd = 0x11  # command (set dummy value)
         device_info.cmd1 = int(row[7])  # available cmd 1
         device_info.cmd1dtype = int(row[11])  # available cmd 1 - data type
         device_info.cmd2 = int(row[8])
         device_info.cmd2dtype = int(row[12])
         device_info.cmd3 = int(row[9])
         device_info.cmd3dtype = int(row[13])
         device_info.cmd4 = int(row[10])  # available cmd 4
         device_info.cmd4dtype = int(row[14])  # available cmd 4 - data type
         device_info.name = row[4]  # name
         device_info.loc = row[5]  # location
         device_info.time = int(row[6])  # timestamp
         self.add_device_to_list(device_info)
     return