** Using WeBWorK **

Concerning this line in
http://webwork.maa.org/wiki/Moodle_Assignment:
"The other problems that I had were with broken Perl modules. I don't remember all the details, but I think that if the webwork2_rpc test fails (even though things are actually working) this triggers an attempt to produce an error report that breaks one of the perl modules (SOAP?) because of an undefined constant."

Should I use different rpms of perl-Apache2-SOAP or some other perl module?

Thanks-
Fuzzy

Hi,

For

https://math.webwork.rochester.edu/webwork2_rp

on our system I get an internal system error -- which -- when you inspect the log -- is really


Can't locate auto/Apache2/Const/HTTP_BAD_RE.al in @INC (@INC contains: /opt/webwork/pg/lib /opt/webwork/webwork2/lib /usr/local/lib/perl5/5.8.9/BSDPAN /usr/local/lib/perl5/site_perl/5.8.9/mach /usr/local/lib/perl5/site_perl/5.8.9 /usr/local/lib/perl5/5.8.9/mach /usr/local/lib/perl5/5.8.9 . /usr/local) at /usr/local/lib/perl5/site_perl/5.8.9/SOAP/Transport/HTTP.pm line 707\n

With no content I expect the command to fail.

However make sure that the analog of
https://math.webwork.rochester.edu/webwork2_wsdl

is working -- you should get an xml file in return.

You can set your moodle to the above address for testing if you wish -- it will probably work although I can't guarantee it.

The version number in SOAP/Lite.pm is
use version; $VERSION = qv('0.710.08');

You should be able to view the request, even from moodle, in the apache error log which may give you more information.

-- Mike

An internet search suggests that the error message should read "The LENGTH argument can't be negative or zero" .....

I suspect it refers to the fact that you are calling
http://webwork3.math.ucsb.edu/webwork2_rpc

with an empty body in the request.

http://webwork3.math.ucsb.edu/webwork2_wsdl works fine
for me so I suspect the webwork installation of your set up is ok.

I was able to trigger an error message when trying to reach
https://math.webwork.rochester.edu/webwork2_rpc
from moodle

[Wed May 05 21:36:07 2010] [error] [client 127.0.0.1] wsdl error: HTTP ERROR: cURL ERROR: 1: Protocol https not supported or disabled in libcurl
url: https://math.webwork.rochester.edu:443/webwork2_wsdl
http_code: 0
header_size: 0
request_size: 0
filetime: -1
ssl_verify_result: 0
redirect_count: 0
total_time: 0
namelookup_time: 0
connect_time: 0
pretransfer_time: 0
size_upload: 0
size_download: 0
speed_download: 0
speed_upload: 0
download_content_length: 0
upload_content_length: 0
starttransfer_time: 0
redirect_time: 0
, referer: http://localhost/moodle/course/view.php?id=7
[Wed May 05 21:36:07 2010] [error] [client 127.0.0.1] https://math.webwork.rochester.edu/webwork2_wsdl, referer: http://localhost/moodle/course/view.php?id=7


so check the error messages in your apache log on the moodle machine to see if something similar is happening.

Hope this helps.

-- Mike