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Re: Goliath, MacOS X Client and WebCT Vista

From: Brian Korver <briank@xythos.com>
Date: Fri, 14 Jan 2005 15:19:57 -0800
Message-Id: <CE45F94C-6682-11D9-8831-000A95AACED2@xythos.com>
Cc: w3c-dist-auth@w3.org
To: Frank Lowney <frank.lowney@gcsu.edu>

Goliath is not limited to port 21.  In fact, port 21 is generally used  
for FTP, so
it is unlikely that it would be used for DAV (or HTTP).  I think  
there's a Windows
FTP client called Goliath, so maybe that's the source of the confusion.

-brian
briank@xythos.com


On Jan 14, 2005, at 1:52 PM, Frank Lowney wrote:
> I tried to put this question directly to tbednarz@webdav.org (this  
> address comes from the mailto: tag on the bottom of the page at:  
> http://www.webdav.org/goliath/) but the message was bounced.  If  
> anyone here can forward this to Thomas, I would appreciate it.
>
> As well, if anyone here can reply to any of all of this query, that  
> would be appreciated too.
>
> Thanks in advance for any help on this.
>
> -------------------------- msg to forward -------------------------
>
> Hello,
>
> In our university system (Georgia), we use an enterprise level  
> Learning Management System called "WebCT Vista" which supports WebDAV  
> in addition to traditional/classic HTTP upload methods (see  
> http://www.webct.com/vista).
>
> I'm one of the few Vista Institutional Admins who are also Mac users  
> so have been asked to look into problems that have been reported by  
> Mac users of the system and investigated by WebCT technical support  
> personnel (see report quoted below). 
>
> Goliath was identified as a solution to a problem with the MacOS X  
> client having to do with its behavior in updating files that have been  
> modified (e.g. edited).  Apparently, the MacOS X client deletes and  
> recreates the file which destroys important metadata on the server  
> (IMS ContentID) and Goliath (as well as many other WebDAV clients)  
> does not.
>
> Unfortunately, we cannot use Goliath instead of the MacOS X client  
> because port 21 is not available to our students (fire wall) and is  
> needed by Goliath.  This claim seemed strange to me because I had  
> thought that all WebDAV clients used HTTP port 80 alone.  Is this not  
> the case?
>
> WebCT Vista operates a bit differently than most other WebDAV-enabled  
> servers in that it generates the URI that client apps need.  Here's an  
> actual example:
>
> http://vista.gsu.edu:8000/webct/webdav/131.96.160.58-1044482159055 
> -3283261001.flowney/University+System+of+Georgia/ 
> Georgia+College+and+State+University/EIS+Testing/QuickTime+Test+Site/ 
> QuickTime+Streaming+(Sect.+01)/Section+Content
>
> Obviously, the length and complexity of these URIs makes such a  
> practice necessary.
>
> Now for my question.
>
> As far as you know, are the statements below accurate?  Whatever  
> insights you'd care to share will be greatly appreciated. 
>
> ------------------- from WebCT Support --------------------
>
> Mac Finder's functionality causes it to delete and recreate a file when
>  uploading an updated version. As a result, the Content ID of the file
>  will change, and all links to that file will be broken. This is an
>  issue with Mac Finder.
>
>  Goliath, a WebDAV client for Macintosh, does not have this issue, and
>  was recommended to be used instead of Mac Finder. However, Goliath  
> does
>  not function correctly with Georgia's Vista instance because it needs  
> to
>  work through port 21, which is blocked at the firewall.
>
> Mac Finder's WebDAV behaviour does not match
>  that of any other WebDAV client we have tested with.  Finder is the  
> only
>  one I know of so far that deletes and recreates a brand new file when  
> uploading
>  an updated version of a file.  All other tested WebDAV clients open  
> the
>  existing file on the server and replace the contents.  Given that we  
> don't
>  have Partner, or Higher Escalation status with Apple, a possible  
> solution is to
>  have both USG and WebCT log a ticket with Apple Customer Support on  
> this
>  issue.  Depending on how much hardware and software that is purchased  
> and
>  deployed on the Georgia campuses, USG may have more influence than  
> WebCT on
> Apple.
> -- 
>
> =====================================================================
>  Dr. Frank Lowney  frank.lowney@gcsu.edu
>      Director, Electronic Instructional Services, a unit of the
>      Office of Information and Instructional Technology,
>      Professional Pages: http://www.gcsu.edu/oiit/eis/
>      Personal Pages: http://www.faculty.de.gcsu.edu/~flowney
>  Voice: (478) 445-5260
>  NOTICE: Please be advised that I am hearing impaired and communicate  
> most effectively via e-mail.  Follow-up summaries of telephone  
> conversations by e-mail are most appreciated.
> =====================================================================
>  We don't make instruction effective, we make effective instruction  
> more accessible.
>
>
Received on Friday, 14 January 2005 23:20:30 GMT

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