[jdev] Re: Problem Connecting to GoogleTalk using my custom client

Gary Burd gary_jabber at beagledreams.com
Mon Oct 24 14:07:00 CDT 2005

The features stanza sent to the client says that client can either
start TLS or login using X-GOOGLE-TOKEN.  Because X-GOOGLE-TOKEN is
not documented and subject to change, your only choice is to start TLS
by sending <starttls/> to the server.

After the stream is started on TLS, the server will send the client a
features stanza containing SASL PLAIN.

I recommend using SASL authentication (XMPP  Core, section 6) instead
of Non-SASL Authentication (JEP-078).

I'll update the error messages to make them more clear.

On 10/24/05, Mukil Kesavan <mukilk at gmail.com> wrote:
> I do agree Norman that instead of building something from scratch I can work
> on improving an existing library. But the "so-called" library that I am
> working on is going to be very basic and I am writing it purely for my own
> understanding. Besides, most of the current libraries have many dependancies
> which I am not so comfortable with.
>  Somebody please tell me how I can do the TLS/SASL part in order to connect
> to GoogleTalk... This is the latest XML trace that I get...
>  SENT:
>  <?xml version='1.0'?><stream:stream to='gmail.com'
>  xmlns='jabber:client'
> xmlns:stream='http://etherx.jabber.org/streams'
> version='1.0'>
>  <?xml version="1.0" encoding="UTF-8"?><stream:stream
> from="gmail.com"
>  id="E6B9A3D4" version="1.0"
>  xmlns:stream="http://etherx.jabber.org/streams"
>  xmlns="jabber:client"><stream:features><starttls
> xmlns="urn:ietf:params:xml:ns:xmpp-tls"/><mechanisms
> xmlns="urn:ietf:params:xml:ns:xmpp-sasl"><mechanism>X-GOOGLE-TOKEN</mechanism></mechanisms></stream:features>
>  SENT:
>  <iq type='set' id='MyLib0'><query
> xmlns='jabber:iq:auth'><username>myname at gmail.com</username><password>mypasswd</password><resource>Res1</resource></query></iq>
>  <iq type="error" id="MyLib0"><query
> xmlns="jabber:iq:auth"><username>myname at gmail.com</username><password>mypasswd</password><resource>Res1</resource></query><error
>  code="405" type="cancel"><not-allowed
>  xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/><text
> xmlns="urn:ietf:params:xml:ns:xmpp-stanzas">Server
>  does not support PLAIN</text></error></iq></stream:stream>
>  Does this mean GoogleTalk ONLY supports X-GOOGLE-TOKEN??? I don't see any
> advertisement for SASL-PLAIN or MD5 or anything....
>  How did you guys fix this problem? Can somebody tell me what things should
> be done after I first receive the reply from google server???
>  Thanks and awaiting your reply,
>  - Mukil

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