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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-5058) Broker MUST respond with CONNACK with return code 0x02 for zero length client id and 0 cleansession
Date Mon, 17 Feb 2014 17:38:19 GMT

     [ https://issues.apache.org/jira/browse/AMQ-5058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish resolved AMQ-5058.
-------------------------------

    Resolution: Fixed

applied on trunk

> Broker MUST respond with CONNACK with return code 0x02 for zero length client id and
0 cleansession
> ---------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-5058
>                 URL: https://issues.apache.org/jira/browse/AMQ-5058
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: MQTT
>    Affects Versions: 5.9.0
>            Reporter: Dhiraj Bokde
>             Fix For: 5.10.0
>
>         Attachments: AMQ-5058.patch
>
>
> The CONNECT.decode() method from mqtt-client had an issue which has been fixed in https://github.com/fusesource/mqtt-client/pull/31
> Wit this fix MQTTProtocolConverter.onConnect() can now check for the condition outlined
below and return a CONNACK with return code 0x02. 
> From MQTT 3.1.1 draft specification
> [MQTT-3.1.3-6] A Server MAY allow a Client to supply a ClientId that has a length of
zero bytes.
> However if it does so the Server MUST treat this as a special case and assign a
> unique ClientId to that Client. It MUST then process the CONNECT packet as if
> the Client had provided that unique ClientId.
> [MQTT-3.1.3-7] If the Client supplies a zero-byte ClientId, the Client MUST also set
Clean
> Session to 1.
> [MQTT-3.1.3-8] If the Client supplies a zero-byte ClientId with Clean Session set to
0, the Server
> MUST respond to the CONNECT Packet with a CONNACK return code 0x02
> (Identifier rejected) and then close the Network Connection.
> [MQTT-3.1.3-9] If the Server rejects the ClientId it MUST respond to the CONNECT Packet
with
> a CONNACK return code 0x02 (Identifier rejected) and then close the Network
> Connection.



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