gsasl login failure

[tofu]

When I have gsasl as the backend and a client parses the challenge incorrectly and sends the wrong response the server responds with the following :

<failure xmlns='urn:ietf:params:xml:ns:xmpp-sasl'><temporary-auth-failure/></failure>

This is not the case. it's not a temporary server issue preventing auth This should be another error.

[smoku]

This is not a temporary issue. True.

But XMPP does not provide a way to report a SASL protocol level error. http://www.xmpp.org/internet-drafts/draft-saintandre-rfc3920bis-03.html#sasl-errors

I do not really know what to do with this. :-(

[plaes]

What about sending <not-authorized/> or <malformed-request/> instead?

Or could we propose a new SASL-error message for RFC?

[smoku]

The request isn't really malformed on the XML level - that would mislead to looking for error in serialiser.

And not-authorized would mislead user to check the credentials entered, which are really entered correctly.

[smoku]

(In [305]) Changed SASL level error reporting to malformed-request error according to rfc3920bis. Fixes #116