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If those are the fields immediately following the path in the log, then it looks like both requests got a 200 response, and the sizes are 3402 and 739.

--
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 12:14 PM, Stephen P Vickers <[log in to unmask]> wrote:
OK, so it is not a firewall issue.  What is the HTTP response code and size of the response for these requests?

Stephen

On 31/08/18 12:11, Tom Salyers wrote:
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
[log in to unmask] <mailto:[log in to unmask].uk>

On Fri, Aug 31, 2018 at 12:04 PM, Stephen P Vickers <[log in to unmask]om <mailto:stephen@spvsoftwareproducts.com>> 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>
        <mailto:[log in to unmask].uk
        <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>
        <mailto:stephen@spvsoftwareproducts.com

        <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>
                 <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/>>
                 <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>
                 <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/>>
                 <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>>
                 <mailto:[log in to unmask].uk
        <mailto:[log in to unmask].uk>
                 <mailto:[log in to unmask].uk
        <mailto:[log in to unmask].uk>>>

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