[jboss-jira] [JBoss JIRA] (WFLY-7429) configurable-sasl-server-factory cannot set mechanism information

[Jan Kalina (JIRA)]

Jan Kalina created WFLY-7429:
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             Summary: configurable-sasl-server-factory cannot set mechanism information
                 Key: WFLY-7429
                 URL: https://issues.jboss.org/browse/WFLY-7429
             Project: WildFly
          Issue Type: Bug
          Components: Security
            Reporter: Jan Kalina
            Assignee: Jan Kalina


sasl-authentication-factory and sasl-server-factory creates chain of SaslServerFactories - for example ServerNameSaslServerFactory only delegates creating to following factory in chain but with rewriting of the server name.
In this chain is also *SetMechanismInformationSaslServerFactory*, which call callback handler to send MechanismInformation into ServerAuthenticationContext - there it will cause state change from InactiveState to InitialState.

*The problem is,* if the configurable-sasl-server-factory is used, the *SetMechanismInformationSaslServerFactory* is in chain twice. The first occurence (by sasl-authentication-factory) will cause change state to InitialState, but before the serverName+protocol is overriden by SaslServerFactories following in chain. The second occurence (by configurable-sasl-server-factory) already have serverName+protocol set, but because the ServerAuthenticationContext is already in InitialState, the exception "Too late to set" is thrown and createSaslServer returns null - fail completely.

The chain of SaslServerFactories:
{code:java}
AuthenticationTimeoutSSF
TrustManagerSSF
AuthenticationCompleteSSF
SetMechanismInformationSSF => cbh => InactiveState -> InitialState(undefined, null)
ServerNameSSF
ProtocolSSF
SetMechanismInformationSSF => cbh => "Too late to set" => return null
SecurityProviderSSF
{code}

Will have to discuss yet how to correctly solve this... (maybe consider allowing of multiple MechanismInformation setting? In current design the sasl-authentication-factory cannot detect the configurable-sasl-server-factory WILL change the MechanismInformation yet...)



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