The basic-lis-readmembershipsforcontextwithgroups option is something I
added to the unofficial memberships extension to enable group
information to be passed for WebPA. I am not aware of this being
implemented in anything other than the BasicLTI4Moodle module and the
BasicLTI building block for Learn 9. If you are seeing group
information being included in the XML returned by Sakai, please can you
send me a sample so that I can see if it is using the same format.

Stephen

PS Note that with the official IMS Memberships service now being in
public draft, I would envisage that the use of the unofficial extension
should be relatively short-lived, though the sharing of group
information remains an outstanding issue.

On 12/05/2015 14:36, Jon Higham wrote:
> We’re using sakai 2.9.3 with BasicLTI 2.1.2.
>
> I don’t know how to get the XML returned to webpa, but I’ve add this to
> sakai.properties:
>
> log.config.count = 1
>
> log.config.1 = DEBUG.org.sakaiproject.blti
>
> I can’t see much about groups in the output I get when I sync the users:
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - Basic LTI Service request from
> IP=150.237.170.02
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - oauth_version:1.0
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet -
> oauth_nonce:99425c36aa845236a7b5e13a9f311c6f
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - oauth_timestamp:1431437016
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - oauth_consumer_key:having_a_giraff
>
> 2015-05-12 14:23:46,634 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet -
> id:33c2efb9931f3c3c6b30221239d0af8dbcf235ca07a983e76332dbf9945a85af:::admin:::d3c2a452-5cfa-4ca3-bf05-271e2ffea1d7
>
> 2015-05-12 14:23:46,652 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - lti_version:LTI-1p0
>
> 2015-05-12 14:23:46,652 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet -
> lti_message_type:basic-lis-readmembershipsforcontextwithgroups
>
> 2015-05-12 14:23:46,652 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - oauth_signature_method:HMAC-SHA1
>
> 2015-05-12 14:23:46,652 DEBUG http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet -
> oauth_signature:0BsJQf+fFgbPCMwNnMfA+/ZfBEY=
>
> 2015-05-12 14:23:46,668 INFO http-bio-8080-exec-6
> org.sakaiproject.blti.ServiceServlet - Not a valid outcomes request:
> lti_message_type=basic-lis-readmembershipsforcontextwithgroups
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - Basic LTI Service request from
> IP=150.237.170.02
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_version:1.0
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> oauth_nonce:2822f6834479b7166c60f070c224aaba
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_timestamp:1431437016
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_consumer_key:having_a_giraff
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> id:33c2efb9931f3c3c6b30221239d0af8dbcf235ca07a983e76332dbf9945a85af:::admin:::d3c2a452-5cfa-4ca3-bf05-271e2ffea1d7
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - lti_version:LTI-1p0
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> lti_message_type:basic-lis-readmembershipsforcontext
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_signature_method:HMAC-SHA1
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> oauth_signature:RcPUR0LIALH26PdvmPsDJ6VNHEg=
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> signature=33c2efb9931f3c3c6b30221239d0af8dbcf235ca07a983e76332dbf9945a85af
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - user_id=admin
>
> 2015-05-12 14:23:46,700 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet -
> placement_id=d3c2a452-5cfa-4ca3-bf05-271e2ffea1d7
>
> 2015-05-12 14:23:46,715 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_secret:
> k0LAgJ9Xp5KLxl2N9wC1UguSbpfMXU
>
> 2015-05-12 14:23:46,715 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - oauth_secret (decrypted):
> k0LAgJ9Xp5KLxl2N9wC1UguSbpfMXUz7
>
> 2015-05-12 14:23:46,715 DEBUG http-bio-8080-exec-1
> org.sakaiproject.blti.ServiceServlet - Received
> signature=33c2efb9931f3c3c6b30221239d0af8dbcf235ca07a983e76332dbf9945a85af
> received=33c2efb9931f3c3c6b30221239d0af8dbcf235ca07a983e76332dbf9945a85af
>
> *From:*Adrian Fish [mailto:[log in to unmask]]
> *Sent:* 12 May 2015 13:00
> *To:* [log in to unmask]
> *Subject:* Re: LTI with Sakai
>
> Groups do get returned - I just checked the Sakai code.
>
> Turn on debug logging for 'org.sakaiproject.blti' in your Sakai
> instance. The xml gets dumped to the log in debug mode, so you'll be
> able to see it in catalina.out. Does that make sense?
>
> Cheers,
>
> Adrian.
>
> On 12 May 2015 at 12:49, Adrian Fish <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> Hi Jon,
>
> Have you tried dumping the returned XML to the page? The end result
> of a memberships request is a chunk of XML being returned to WebPA.
> If you can dump that in the webpa lti plugin code, it should become
> apparent if groups are being returned.
>
> I'll check the Sakai consumer code in the meantime. What version of
> Sakai are you testing on?
>
> Cheers,
>
> Adrian.
>
> On 12 May 2015 at 11:35, Jon Higham <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> Hi all
>
> I’ve a few queries with the LTI integration with Sakai.
>
> I’ve had to make some changes to webpa so that it will sync
> sakai site members with the correct role. It now seems to work
> well and I can transfer grades from webpa to sakai. However,
> does the integration provide group membership? With my limited
> knowledge of php and LTI I can’t see that sakai is passing any
> group membership information. I’d be grateful of any pointers on
> where to check this.
>
> Also, is there a session timeout and how does the LTI session
> logout work? If I login to sakai, use the LTI tool to open a
> webpa tab, I can logout of sakai and the webpa tab is left
> logged in and never times out.
>
> *Jon Higham*
>
> Application Support and Development Analyst
> University of Hull
> Hull, HU6 7RX, UK
> http://www.hull.ac.uk/
> 01482 465734
>
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