/// <summary>
/// Parse bytes for a SUBACK message
/// </summary>
/// <param name="fixedHeaderFirstByte">First fixed header byte</param>
/// <param name="protocolVersion">Protocol Version</param>
/// <param name="channel">Channel connected to the broker</param>
/// <returns>SUBACK message instance</returns>
public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
{
byte[] buffer;
int index = 0;
MqttMsgSuback msg = new MqttMsgSuback();
if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
{
// [v3.1.1] check flag bits
if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_SUBACK_FLAG_BITS)
throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
}
// get remaining length and allocate buffer
int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
buffer = new byte[remainingLength];
// read bytes from socket...
channel.Receive(buffer);
// message id
msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
msg.messageId |= (buffer[index++]);
// payload contains QoS levels granted
msg.grantedQosLevels = new byte[remainingLength - MESSAGE_ID_SIZE];
int qosIdx = 0;
do
{
msg.grantedQosLevels[qosIdx++] = buffer[index++];
} while (index < remainingLength);
return msg;
}
/// <summary>
/// Parse bytes for a SUBACK message
/// </summary>
/// <param name="fixedHeaderFirstByte">First fixed header byte</param>
/// <param name="channel">Channel connected to the broker</param>
/// <returns>SUBACK message instance</returns>
public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, IMqttNetworkChannel channel)
{
byte[] buffer;
int index = 0;
MqttMsgSuback msg = new MqttMsgSuback();
// get remaining length and allocate buffer
int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
buffer = new byte[remainingLength];
// read bytes from socket...
channel.Receive(buffer);
// message id
msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
msg.messageId |= (buffer[index++]);
// payload contains QoS levels granted
msg.grantedQosLevels = new byte[remainingLength - MESSAGE_ID_SIZE];
int qosIdx = 0;
do
{
msg.grantedQosLevels[qosIdx++] = buffer[index++];
} while (index < remainingLength);
return(msg);
}
/// <summary>
/// Parse bytes for a SUBACK message
/// </summary>
/// <param name="fixedHeaderFirstByte">First fixed header byte</param>
/// <param name="socket">Socket connected to the broker</param>
/// <returns>SUBACK message instance</returns>
public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, Socket socket)
{
byte[] buffer;
int index = 0;
MqttMsgSuback msg = new MqttMsgSuback();
// get remaining length and allocate buffer
int remainingLength = MqttMsgBase.decodeRemainingLength(socket);
buffer = new byte[remainingLength];
// read bytes from socket...
socket.Receive(buffer);
// message id
msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
msg.messageId |= (buffer[index++]);
// payload contains QoS levels granted
msg.grantedQosLevels = new byte[remainingLength - MESSAGE_ID_SIZE];
int qosIdx = 0;
do
{
msg.grantedQosLevels[qosIdx++] = buffer[index++];
} while (index < remainingLength);
return msg;
}
public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
{
int num1 = 0;
MqttMsgSuback mqttMsgSuback1 = new MqttMsgSuback();
if (protocolVersion == (byte)4 && ((uint)fixedHeaderFirstByte & 15U) > 0U)
{
throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
}
int length = MqttMsgBase.decodeRemainingLength(channel);
byte[] buffer = new byte[length];
channel.Receive(buffer);
MqttMsgSuback mqttMsgSuback2 = mqttMsgSuback1;
byte[] numArray1 = buffer;
int index1 = num1;
int num2 = checked (index1 + 1);
int num3 = (int)checked ((ushort)((int)numArray1[index1] << 8 & 65280));
mqttMsgSuback2.messageId = (ushort)num3;
MqttMsgSuback mqttMsgSuback3 = mqttMsgSuback1;
int messageId = (int)mqttMsgSuback3.messageId;
byte[] numArray2 = buffer;
int index2 = num2;
int num4 = checked (index2 + 1);
int num5 = (int)numArray2[index2];
mqttMsgSuback3.messageId = (ushort)(messageId | num5);
mqttMsgSuback1.grantedQosLevels = new byte[checked (length - 2)];
int num6 = 0;
do
{
mqttMsgSuback1.grantedQosLevels[checked (num6++)] = buffer[checked (num4++)];
}while (num4 < length);
return(mqttMsgSuback1);
}
/// <summary>
/// Parse bytes for a SUBACK message
/// </summary>
/// <param name="fixedHeaderFirstByte">First fixed header byte</param>
/// <param name="protocolVersion">Protocol Version</param>
/// <param name="channel">Channel connected to the broker</param>
/// <returns>SUBACK message instance</returns>
public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
{
byte[] buffer;
int index = 0;
MqttMsgSuback msg = new MqttMsgSuback();
if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
{
// [v3.1.1] check flag bits
if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_SUBACK_FLAG_BITS)
{
throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
}
}
// get remaining length and allocate buffer
int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
buffer = new byte[remainingLength];
// read bytes from socket...
channel.Receive(buffer);
// message id
msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
msg.messageId |= (buffer[index++]);
// payload contains QoS levels granted
msg.grantedQosLevels = new byte[remainingLength - MESSAGE_ID_SIZE];
int qosIdx = 0;
do
{
msg.grantedQosLevels[qosIdx++] = buffer[index++];
} while (index < remainingLength);
return(msg);
}
/// <summary>
/// Wrapper method for raising subscribed topic event (SUBACK message)
/// </summary>
/// <param name="suback">SUBACK message received</param>
private void OnMqttMsgSubscribed(MqttMsgSuback suback)
{
if (this.MqttMsgSubscribed != null)
{
this.MqttMsgSubscribed(this,
new MqttMsgSubscribedEventArgs(suback.MessageId, suback.GrantedQoSLevels));
}
}
/// <summary>
/// Send SUBACK message to the client
/// </summary>
/// <param name="messageId">Message Id for the SUBSCRIBE message that is being acknowledged</param>
/// <param name="grantedQosLevels">Granted QoS Levels</param>
public void Suback(ushort messageId, byte[] grantedQosLevels)
{
MqttMsgSuback suback = new MqttMsgSuback();
suback.MessageId = messageId;
suback.GrantedQoSLevels = grantedQosLevels;
this.Send(suback);
}