Question

The WebDAV plugin seems to truncate imported files to 0 Bytes.

Details

I installed the WebDAV plugin exactly as described, but now, when I upload some files to a DAV resource, they are truncated to 0 Bytes.

This is the DAV log from Apache:

----------------------------------------------------------------------------------
Check access Sandbox/DavTest//home/twiki/pub/Sandbox/DavTest/pe1800.pdf:V for jhassler
Test access to / for user jhassler
Test access to P:/Sandbox/:V for user jhassler
Test access to P:/Sandbox/DavTest:V for user jhassler
P:/Sandbox/DavTest:V for jhassler is accessible
DAV: HEAD /twikidav/pub/Sandbox/DavTest/pe1800.pdf: regular versioned file, does not exist, base 0 work 1 (twiki Sandbox/DavTest)
Check access Sandbox/DavTest//home/twiki/pub/Sandbox/DavTest/pe1800.pdf:C for jhassler
Test access to / for user jhassler
Test access to P:/Sandbox/:C for user jhassler
Test access to P:/Sandbox/DavTest:C for user jhassler
P:/Sandbox/DavTest:C for jhassler is accessible
DAV: PUT /twikidav/pub/Sandbox/DavTest/pe1800.pdf: regular versioned file, does not exist, base 0 work 1 (twiki Sandbox/DavTest)
DAV_FS_VSN: CHECKIN  /twikidav/pub/Sandbox/DavTest/pe1800.pdf: regular versioned file, exists, base 0 work 1 (twiki Sandbox/DavTest)
----------------------------------------------------------------------------------

This is my Apache config:

----------------------------------------------------------------------------------
Alias /twikidav/pub/ /home/twiki/pub/

   DAV On
   TWikiDir pub /home/twiki/pub
   TWikiScript /home/twiki/tools/dav.pl
   Options FollowSymLinks Indexes
   Allow from all
   AuthType Basic
   AuthName "Bitte geben Sie Ihren WetzelWiki-Usernamen ein"
   AuthUserFile /home/twiki/data/.htpasswd
   Require valid-user

----------------------------------------------------------------------------------

And this is the directory listing of th DavTest topic:

----------------------------------------------------------------------------------
-rw-r--r--  1 www-data www-data      0 2006-05-08 10:46 gswin.zip
-r--r--r--  1 www-data www-data    177 2006-05-08 10:46 gswin.zip,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 10:48 guestbook_data.txt
-r--r--r--  1 www-data www-data    177 2006-05-08 10:48 guestbook_data.txt,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 10:49 holzdek_smart.jpg
-r--r--r--  1 www-data www-data    177 2006-05-08 10:49 holzdek_smart.jpg,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 10:50 INHALTSVERZEICHNIS.doc
-r--r--r--  1 www-data www-data    177 2006-05-08 10:50 INHALTSVERZEICHNIS.doc,v
-rw-r--r--  1 www-data www-data  45568 2006-05-08 09:55 linux_kurzeinfuehrung.doc
-r--r--r--  1 www-data www-data  45820 2006-05-08 09:55 linux_kurzeinfuehrung.doc,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 10:59 makro.doc
-r--r--r--  1 www-data www-data    177 2006-05-08 10:59 makro.doc,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 11:00 mathias_flexolaser_firewall.txt
-r--r--r--  1 www-data www-data    177 2006-05-08 11:00 mathias_flexolaser_firewall.txt,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 11:00 Organigramm_PE_2003_farbig_10.02.03.doc
-r--r--r--  1 www-data www-data    177 2006-05-08 11:00 Organigramm_PE_2003_farbig_10.02.03.doc,v
-rw-r--r--  1 www-data www-data      0 2006-05-08 11:03 pe1800.pdf
-r--r--r--  1 www-data www-data    177 2006-05-08 11:03 pe1800.pdf,v
----------------------------------------------------------------------------------

As you can see, the files are 0 Bytes in size, but a version is created. The file "linux_kurzeinfuehrung.doc" was uploaded the "regular" way inside TWiki.

This is the content of the ,v files:

----------------------------------------------------------------------------------
head    1.1;
access;
symbols;
locks; strict;
comment @# @;


1.1
date    2006.05.08.08.46.42;    author JensHassler;     state Exp;
branches;
next    ;


desc
@none
@


1.1
log
@none
@
text
@@
----------------------------------------------------------------------------------

There are no errors nor warnings in the TWiki warning log and the Apache error log.

What I did is:

1. Open my DAV resource in Internet Explorer: http://intranet/twikidav/pub/Sandbox/DavTest/

2. Paste a file into the folder.

When I use DAV without the dav.pl it works without truncating. So, something seems to happen inside the dav.pl or the TWiki::Func::saveAttachment function.

Thanks for looking into this!

Environment

-- JensHassler - 10 May 2006

Answer

"Some files" is not really narrowing it down much. Can you isolate the circumstances in which you see this behaviour? I cannot reproduce it. Also, exactly what version of the plugin are you using, and exactly what apache version.

-- CrawfordCurrie - 15 May 2006

This is fixed with 4.0.3, see LatestBlackListPluginCausesFileAttachmentToErasePageContent for a patch.

-- SteffenPoulsen - 16 Jun 2006