Does this library supports Utf8 Chinese topic name?

[neardreams]

HI~

I tried some Chinese topic names, but raises following exception on the bottom. Everything goes normal when I change the topic name back to just English chars. Does this library supports Utf8 Chinese topic names or did I just misused something? Thanks.

I/flutter (15925): 2023-10-27 09:47:58.753472 -- MqttServerConnection::_onData - Message Received Started <<< I/flutter (15925): 2023-10-27 09:47:58.753624 -- MqttServerConnection::_ondata - adding incoming data, data length is 1487, message stream length is 0, message stream position is 0 I/flutter (15925): 2023-10-27 09:47:58.753701 -- MqttServerConnection::_ondata - added incoming data message stream length is 1487, message stream position is 0 I/flutter (15925): 2023-10-27 09:47:58.753828 -- MqttByteBuffer:isMessageAvailable - assumed valid header, value is 48 I/flutter (15925): 2023-10-27 09:47:58.762594 -- MqttServerConnection::_ondata - exception raised is mqtt-client::InvalidMessageException: The data provided in the message stream was not a valid MQTT Message, exception is Exception: MqttByteBuffer::read: The buffer did not have enough bytes for the read operation length 1454, count 1458, position 0, buffer [123, 13, 10, 32, 32, 34, 115, 99, 101, 110, 97, 114, 105, 111, 115, 34, 58, 32, 91, 123, 34, 105, 110, 100, 101, 120, 34, 58, 49, 44, 34, 110, 97, 109, 101, 34, 58, 34, 230, 184, 172, 232, 169, 166, 230, 131, 133, 229, 162, 131, 233, 150, 139, 49, 34, 44, 34, 115, 99, 101, 110, 97, 114, 105, 111, 84, 121, 112, 101, 34, 58, 50, 44, 34, 105, 100, 34, 58, 50, 57, 125, 44, 123, 34, 105, 110, 100, 101, 120, 34, 58, 50, 44, 34, 110, 97, 109, 101, 34, 58, 34, 230, 184, 172, 232, 169, 166, 230, 131, 133, 229, 162, 131, 233, 151, 156, 34, 44, 34, 115, 99, 101, 110, 97, 114, 105, 111, 84, 121, 112, 101, 34, 58, 50, 44, 34, 105, 100, 34, 58, 51, 48, 125, 44, 123, 34, 105, 110, 100, 10 I/flutter (15925): 2023-10-27 09:47:58.762873 -- MqttServerConnection::_ondata - irrecoverable exception raised - sending disconnect mqtt-client::InvalidMessageException: The data provided in the message stream was not a valid MQTT Message, exception is Exception: MqttByteBuffer::read: The buffer did not have enough bytes for the read operation length 1454, count 1458, position 0, buffer [123, 13, 10, 32, 32, 34, 115, 99, 101, 110, 97, 114, 105, 111, 115, 34, 58, 32, 91, 123, 34, 105, 110, 100, 101, 120, 34, 58, 49, 44, 34, 110, 97, 109, 101, 34, 58, 34, 230, 184, 172, 232, 169, 166, 230, 131, 133, 229, 162, 131, 233, 150, 139, 49, 34, 44, 34, 115, 99, 101, 110, 97, 114, 105, 111, 84, 121, 112, 101, 34, 58, 50, 44, 34, 105, 100, 34, 58, 50, 57, 125, 44, 123, 34, 105, 110, 100, 101, 120, 34, 58, 50, 44, 34, 110, 97, 109, 101, 34, 58, 34, 230, 184, 172, 232, 169, 166, 230, 131, 133, 229, 162, 131, 233, 151, 156, 34, 44, 34, 115, 99, 101, 110, 97, 114, 105, 111, 84, 121, 112, 101, 34, 58, 50, 44, 34, 105, 100, 34, 58, 51, 48, 125 I/flutter (15925): 2023-10-27 09:47:58.764227 -- MqttServerConnection::_onData - Message Received Ended <<<

[shamblett]

The spec says -

Topic Names and Topic Filters are UTF-8 Encoded Strings; they MUST NOT encode to more than 65,535 bytes

so yes, it should. I thought it did, I'll check and get back to you.

[shamblett]

Yep, as I thought it does treat topic names as UTF8 encoded MQTT Strings, could you please post the Chinese topic name you are having trouble with?

[neardreams]

Yep, as I thought it does treat topic names as UTF8 encoded MQTT Strings, could you please post the Chinese topic name you are having trouble with?

smartDevices/房間1

[shamblett]

This was a bug, should be fixed now, package updated and re published at version 4.0.3

[neardreams]

It works, thanks!