[OASIS Issue Tracker] Commented: (MQTT-9) If the Connect flags indicate that he user name exists but none is present in the payload treat this as a malformed CONNECT packet.

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ http://tools.oasis-open.org/issues/browse/MQTT-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33543#action_33543 ] 

Rahul Gupta commented on MQTT-9:
--------------------------------

This is the current documentation in the working draft, which was copied from the 3.1 specification:

"If the password flag is set but the password is not present the server MUST disconnect the TCP socket"  which eventually is because of a malformed CONNECTpacket.

I think the client should be informed with a error code from Server, through CONNACK before doing a abrupt DISCONNECT 


> If the Connect flags indicate that he user name exists but none is present in the payload treat this as a malformed CONNECT packet.
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MQTT-9
>                 URL: http://tools.oasis-open.org/issues/browse/MQTT-9
>             Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
>          Issue Type: Improvement
>          Components: core
>         Environment: MQTT Server
>            Reporter: Andrew Banks
>
> If the Connect flags indicate that the user name exists but none is present in the payload treat this as a malformed CONNECT packet and disconnect the client.
> See issue-8 as to whether a connack is flowed.

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