commons-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Stephan Schuster <st...@wilken.de>
Subject Re: [vfs] webdav, jackrabbit and fileObject.exists()
Date Fri, 18 Apr 2008 12:42:17 GMT
hi jason,

thank you for your effort, i'll try your patch soon. for the moment i'm 
not really dependent on jackrabbit, a plain apache or even tomcat with 
webdav support is fine.

what i'm way more interested in is an "active" client side webdav 
library for java (since slide has retired). in fact i hope that such a 
library will soon get integrated into VFS (which i use heavily for my 
current project) so that there is no need for a sandbox that depends on 
a snapshot of a dead project. i followed your discussion "the state of 
webdav clients" and i'm quite happy that finally someone attends to this 
problem.

do you think there is a chance that your webdavclient4j will be used by 
vfs? by the way: do you know if slide is the only reason why vfs depends 
on httpclient 2.0.2? as far as i remember your webdavclient4j client 
already supports httpclient 3.0.1 (what about 3.1). so if vfs will use 
your client there might be a chance to migrate to 3.xxx - that would be 
really great!


keep on the good work!

regards,
stephan


ps: if i had more time at the moment i would even consider helping 
you... maybe later.




jharrop wrote:
> Hi Stephan
> 
> See http://issues.apache.org/jira/browse/VFS-207 for a patch, now 9 days
> old.
> 
> Hopefully that fix works for jackrabbit's WebDAV.  
> 
> I'm considering adding the vfs webdav sandbox stuff to webdavclient4j's
> source tree, and maintaining it there.  
> 
> cheers,
> 
> Jason
> 
> 
> Stephan Schuster-3 wrote:
>> hi together,
>>
>> first of all thanks for this great piece of software!
>>
>>
>> my context:
>> i want to use vfs to search and - if existing - access files on my 
>> server via webdav. as stated on the homepage i use:
>> commons-httpclient-2.0.2.jar
>> commons-logging-1.1.1.jar
>> commons-vfs-sandbox-1.0-SNAPSHOT.jar
>> jakarta-slide-webdavlib-20050629.161100.jar
>> jdom-1.0.jar
>>
>> my problem:
>> - my little test program (see below) WORKS fine IF THE FILE i want to 
>> resolve EXISTS on the server (APACHE or JACKRABBIT deployed in tomcat).
>> - IF THE FILE DOES NOT EXIST
>>    - it IS STILL WORKING on APACHE as my weddav server.
>>    - it DOES NOT WORK on JACKRABBIT as my server. see exception below.
>>
>> the reason:
>> in WebdavFileObject.setDavResource(WebdavResource resource) the server 
>> is asked via the OptionsMethod which methods it understands for the 
>> encoded path of a potentially non existing file. i setup a proxy in 
>> between. see the complete results at the end of my mail.
>>
>> apache returns: OPTIONS,MKCOL,PUT,LOCK
>> jackrabbit returns: OPTIONS, GET, HEAD, POST, TRACE, PROPFIND, 
>> PROPPATCH, MKCOL, COPY, PUT, DELETE, MOVE, LOCK, UNLOCK, VERSION-CONTROL
>>
>> WebdavFileObject traverses each returned method and if it encounters 
>> "COPY" it assumes that the file exists. however, this is not true for 
>> jackrabbit.
>>
>>
>> now, which code is wrong? the one of jackrabbit (i looked into it but 
>> couldn't find the right place) or the one of vfs. is there a workaround 
>> or something else i can do?
>>
>>
>> thanks,
>> stephan
>>
>>
>> TEST PROGRAM:
>>
>> DefaultFileSystemManager mgr = new DefaultFileSystemManager();
>> mgr.addProvider("file", new DefaultLocalFileProvider());
>> mgr.addProvider("webdav", new WebdavFileProvider());
>> mgr.init();
>>
>> FileObject file = mgr.resolveFile(PATH-TO-NON-EXISTING-FILE-ON-SERVER);
>>
>> if (file.exists()) { // THAT'S WHERE THE EXCEPTION OCCURS!!!
>>     ...
>> }
>> ...
>>
>>
>> EXCEPTION:
>>
>> org.apache.commons.vfs.FileSystemException: Could not determine the type 
>> of file 
>> "webdav://username:password@localhost:8888/jackrabbit/repository/default/test/non-existing-file.txt".
>> 	at 
>> org.apache.commons.vfs.provider.AbstractFileObject.attach(AbstractFileObject.java:1305)
>> 	at 
>> org.apache.commons.vfs.provider.AbstractFileObject.getType(AbstractFileObject.java:412)
>> 	at 
>> org.apache.commons.vfs.provider.AbstractFileObject.exists(AbstractFileObject.java:402)
>> 	at test.Main2.main(Main2.java:42)
>> Caused by: org.apache.commons.vfs.FileSystemException
>> 	at 
>> org.apache.commons.vfs.provider.webdav.WebdavFileObject.setDavResource(WebdavFileObject.java:190)
>> 	at 
>> org.apache.commons.vfs.provider.webdav.WebdavFileObject.doAttach(WebdavFileObject.java:92)
>> 	at 
>> org.apache.commons.vfs.provider.AbstractFileObject.attach(AbstractFileObject.java:1291)
>> 	... 3 more
>> Caused by: org.apache.commons.httpclient.HttpException
>> 	at 
>> org.apache.webdav.lib.WebdavResource.propfindMethod(WebdavResource.java:3517)
>> 	at 
>> org.apache.webdav.lib.WebdavResource.propfindMethod(WebdavResource.java:3472)
>> 	at 
>> org.apache.webdav.lib.WebdavResource.setNamedProp(WebdavResource.java:976)
>> 	at 
>> org.apache.webdav.lib.WebdavResource.setDefaultProperties(WebdavResource.java:963)
>> 	at 
>> org.apache.webdav.lib.WebdavResource.setProperties(WebdavResource.java:1923)
>> 	at 
>> org.apache.commons.vfs.provider.webdav.WebdavFileObject.setDavResource(WebdavFileObject.java:186)
>> 	... 5 more
>>
>>
>> PROXY OUTPUT JACKRABBIT:
>>
>>
>> REQUEST:
>>
>> OPTIONS /jackrabbit/repository/default/test/file3.txt HTTP/1.1
>> Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=
>> User-Agent: Jakarta Commons-HttpClient/2.0.2
>> Host: 127.0.0.1:8000
>>
>> PROPFIND /jackrabbit/repository/default/test/file3.txt HTTP/1.1
>> Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=
>> Content-Type: text/xml; charset=utf-8
>> User-Agent: Jakarta Commons-HttpClient/2.0.2
>> Host: localhost:8000
>> Content-Length: 288
>> Depth: 1
>>
>> <?xml version="1.0" encoding="utf-8" ?><D:propfind 
>> xmlns:D="DAV:"><D:prop><D:creationdate/><D:displayname/><D:getcontentlanguage/><D:getcontentlength/><D:getcontenttype/><D:getetag/><D:getlastmodified/><D:lockdiscovery/><D:resourcetype/><D:source/><D:supportedlock/></D:prop></D:propfind>
>>
>>
>> RESPONSE:
>>
>> HTTP/1.1 200 OK
>> Server: Apache-Coyote/1.1
>> DAV: 1,2,version-control,version-history,label
>> Allow: OPTIONS, GET, HEAD, POST, TRACE, PROPFIND, PROPPATCH, MKCOL, 
>> COPY, PUT, DELETE, MOVE, LOCK, UNLOCK, VERSION-CONTROL
>> MS-Author-Via: DAV
>> Content-Length: 0
>> Date: Tue, 01 Apr 2008 10:05:39 GMT
>>
>> HTTP/1.1 404 Not Found
>> Server: Apache-Coyote/1.1
>> Content-Type: text/html;charset=utf-8
>> Content-Length: 952
>> Date: Tue, 01 Apr 2008 10:05:39 GMT
>>
>> <html><head><title>Apache Tomcat/5.5.17 - Error 
>> report</title><style><!--H1 
>> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;}

>> H2 
>> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;}

>> H3 
>> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;}

>> BODY 
>> {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} 
>> B 
>> {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} 
>> P 
>> {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A

>> {color : black;}A.name {color : black;}HR {color : #525D76;}--></style>

>> </head><body><h1>HTTP Status 404 - </h1><HR size="1" 
>> noshade="noshade"><p>type Status report</p><p>message 
>> <u></u></p><p>description <u>The requested resource
() is not 
>> available.</u></p><HR size="1" noshade="noshade"><h3>Apache

>> Tomcat/5.5.17</h3></body></html>
>>
>>
>> PROXY OUTPUT APACHE:
>>
>>
>> REQUEST:
>>
>> OPTIONS /webdav/test/file3.txt HTTP/1.1
>> Authorization: Basic d2lsa2VuOndpbGtlbg==
>> User-Agent: Jakarta Commons-HttpClient/2.0.2
>> Host: 127.0.0.1:8888
>>
>>
>> RESPONSE:
>>
>> HTTP/1.1 200 OK
>> Date: Tue, 01 Apr 2008 09:49:13 GMT
>> Server: Apache/2.2.8 (Win32) DAV/2 mod_ssl/2.2.8 OpenSSL/0.9.8g 
>> mod_autoindex_color PHP/5.2.5
>> DAV: 1,2
>> MS-Author-Via: DAV
>> Allow: OPTIONS,MKCOL,PUT,LOCK
>> Content-Length: 0
>> Content-Type: text/plain
>> X-Pad: avoid browser bug
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
>> For additional commands, e-mail: user-help@commons.apache.org
>>
>>
>>
> 
X-AntiVirus: checked by AntiVir MailGuard (Version: 8.0.0.18; AVE: 8.1.0.30; VDF: 7.0.3.183)

-- 

Viele Grüße,
Stephan Schuster
__________________________________________________________

Abt.: Systementwicklung       Wilken GmbH
Tel: (+49)0731/9650-324       Software. Menschen. Service.
Fax: (+49)0731/9650-767
E-Mail: stsch@wilken.de       Hörvelsinger Weg 25-29
Internet: www.wilken.de       D-89081 Ulm

Wilken GmbH, HRB Ulm 794, GF: Dr. Andreas Lied
__________________________________________________________

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org


Mime
View raw message