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There are BasicLTI POST requests with "extension" in the path that line up with the sync attempts I've done.

--
Tom Salyers
VLE Developer

The University of Sheffield
Corporate Information & Computing Services (CiCS)
10-12 Brunswick Street
Sheffield, S10 2FN
Tel:  0114 222 1141

On Fri, Aug 31, 2018 at 12:04 PM, Stephen P Vickers <[log in to unmask]> wrote:
You need to check for the reference to the membership service request; there will be entries caused by launches.  Either check the log at the time you make the data sync, or look for an entry for the BasicLTI building block which includes "extension" in its path.

Stephen

On 31/08/18 11:54, Tom Salyers wrote:
Hi, Stephen.

I'm seeing BasicLTI references in the access log to "webpat", which I can only assume are WebPA-related. (But let me know if I'm wrong.) Also, commenting out the curl_setopt line didn't seem to make a difference.

--
Tom Salyers
VLE Developer

The University of Sheffield
Corporate Information & Computing Services (CiCS)
10-12 Brunswick Street
Sheffield, S10 2FN
Tel:  0114 222 1141
[log in to unmask] <mailto:[log in to unmask].uk>


On Fri, Aug 31, 2018 at 11:47 AM, Stephen P Vickers <[log in to unmask]om <mailto:stephen@spvsoftwareproducts.com>> wrote:

    In addition, try removing or commenting out this line from
    lib/LTI_Tool_Provider.php:

           curl_setopt($ch, CURLOPT_SSLVERSION,3);

    Stephen

    On 31/08/18 11:33, Tom Salyers wrote:

        Hi, all.

        We've got a test installation of the new version of WebPA going
        and we're attempting to integrate it with Blackboard using the
        latest LTI connector version. The actual integration seems to be
        working fine...up until the point where we try to sync data,
        when we get an "Unable to access memberships list from source,
        please try again later" error message.

        I'm not sure where the actual error is coming in, but it looks
        like the problem is coming up in the LTI connector. From the web
        server error log:

        [Fri Aug 31 11:06:19.841037 2018] [:error] [pid 1176] [client
        143.167.16.2:50423 <http://143.167.16.2:50423>
        <http://143.167.16.2:50423>] PHP Warning:         DOMDocument::loadXML(): Empty string supplied as input in
        /var/www/data/webpa211/mod/lti/lib/LTI_Tool_Provider.php on line
        2185, referer: https://webpad.shef.ac.uk/mod/lti/admin/manage/
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/>
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/>>
        [Fri Aug 31 11:06:19.841230 2018] [:error] [pid 1176] [client
        143.167.16.2:50423 <http://143.167.16.2:50423>
        <http://143.167.16.2:50423>] PHP Notice:  Trying to get property
        of non-object in
        /var/www/data/webpa211/mod/lti/lib/LTI_Tool_Provider.php on line
        2282, referer: https://webpad.shef.ac.uk/mod/lti/admin/manage/
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/>
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/
        <https://webpad.shef.ac.uk/mod/lti/admin/manage/>>

        Stephen Vickers asked if I had any firewall issues, but it
        doesn't seem to be the case--Blackboard and WebPA seem to be
        communicating just fine otherwise.

        --
        Tom Salyers
        VLE Developer

        The University of Sheffield
        Corporate Information & Computing Services (CiCS)
        10-12 Brunswick Street
        Sheffield, S10 2FN
        Tel:  0114 222 1141
        [log in to unmask] <mailto:[log in to unmask].uk>
        <mailto:[log in to unmask].uk
        <mailto:[log in to unmask].uk>>

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