Android Question Authorisation in mosquitto MQTT

[alimanam3386]

Hi guys

MQTT is great yeah AND I know it has facilities to do authorisation itself to control users to have permission for publish/sub topics. However , how can we implement it ? I use mosquitto broker and I am confused. any tutorial about implement authorisation users can be very useful . thanks

I read these topics :

https://www.b4x.com/android/forum/threads/59471/#content
https://www.b4x.com/android/forum/threads/61568/#content

 

[Erel]

Mosquitto ACL file is explained here: http://www.steves-internet-guide.com/topic-restriction-mosquitto-configuration/

You should use Client.Connect2 and pass a MqttConnectOptions with the username and password.

 

[alimanam3386]

Ok thank you Erel , Can we generate ( create new user/pass in server side ) dynamic username & pass in server ?

 

[Erel]

You can create a program that generates the configuration file. I think that you will need to restart the broker after each change.

 

[MaFu]

You can create a program that generates the configuration file. I think that you will need to restart the broker after each change.

That's correct. Mosquitto must be restarted to read the changes in the configuration file.

 

[moster67]

To complement this thread, there is a plugin called "mosquitto-auth-plug" which is an authentication plugin for the Mosquitto-broker working with multiple back-ends (MySQL, Redis, CDB, SQLite3). You need to compile it and set it up to work with Mosquitto but it is well worth the effort if you want more flexibility to handle users and topics in real time. I have tested it and it works well without restarting the Mosquitto-server.

I published a support library here which can help you when using said plugin with B4X.

 

[alimanam3386]

Thank you @moster67