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Posted to users@jackrabbit.apache.org by Jan Pernica <ja...@pernica.org> on 2010/09/22 10:46:09 UTC
Locking
Hi. I just found jackrabbit as a good start point for our WebDAV project.
I have run standalone server to find features of jackrabbit and I found
following problem:
Using OpenOffice 3.2.1 I am able to open the same document from two
places and both of them can write the content.
the questions is:
How to lock document to be read-only if it is edited by some user?
Thanks for any hints
Regards
Jan
Re: Locking
Posted by Jan Pernica <ja...@pernica.org>.
Hello Fabian
On 22.9.2010 13:51, Fabián Mandelbaum wrote:
> Hello Jan,
>
> indeed there's always a few PROPFIND (usually starting at / ) to find
> out about the DAV capabilities of the server (I guess, I didn't
> confirm this, but seen all DAV clients do the same thing), and then
> the 'real' requests are performed (LOCK, PUT, UNLOCK)
>
> Even if it would make perfect sense to do the LOCK 1st and then the
> GET, when opening a file, I think it's more conservative to do the GET
> first, and only do the LOCK if the file could be gotten fine (GET
> succeeded).
This scenario is OK.
> Maybe the LOCK, GET, UNLOCK sequence you are seeing is because there's
> some network (or other) problem when performing the GET and the file
> cannot be properly retreived?
The problem is than OpenOffice not all the time sends LOCK/UNLOCK and is
sending PUT after UNLOCL :-(
Thank you for your time
Jan
> Food for thought. Good luck!
>
> 2010/9/22 Jan Pernica<ja...@pernica.org>:
>> Hello Fabian
>>
>> MS Word asks dav to lock the file. OO does not. :-(
>> I thought that I can ask client to send LOCK/UNLOCK. Interesting is that
>> Linux OO sends LOCK/UNLOCK but in very strange order.
>> methods called:
>> LOCK
>> GET
>> UNLOCK
>> PUT
>>
>> and few PROPFIND
>>
>> I would expect PUT to be in brackets of LOCK/UNLOCK
>>
>> thank you anyway
>>
>> Jan
>>
>>
>> On 22.9.2010 12:28, Fabián Mandelbaum wrote:
>>> Hello Jan,
>>>
>>> usually it's the WebDAV client (in this case OpenOffice 3.2.1) that
>>> should (must?) lock the file. That is, it's not the server that's
>>> going to automatically lock the file when someone opens it, but it's
>>> the client (XML editor) that asks the server explicitly to lock the
>>> file when opening it and then to unlock it when closing the file.
>>>
>>> For example, XMLMind's XXE works this way (didn't try lots of other
>>> editors, but I think this is the way things are to be done).
>>>
>>> Good luck.
>>>
>>> 2010/9/22 Jan Pernica<ja...@pernica.org>:
>>>> Hi. I just found jackrabbit as a good start point for our WebDAV
>>>> project.
>>>> I have run standalone server to find features of jackrabbit and I found
>>>> following problem:
>>>> Using OpenOffice 3.2.1 I am able to open the same document from two
>>>> places
>>>> and both of them can write the content.
>>>>
>>>> the questions is:
>>>> How to lock document to be read-only if it is edited by some user?
>>>>
>>>> Thanks for any hints
>>>>
>>>> Regards
>>>>
>>>> Jan
>>>>
>>>
>> --
>> Děkuji a s pozdravem
>>
>> Jan Pernica
>> ===========================================
>> Pernica IT Solutions
>> Masarykovo náměstí 8
>> 664 51 Šlapanice
>> Czech Republic
>> tel,fax: +420 544 245 068
>> mobile: +420 777 634 665
>> mailto:jan.pernica@pernica.org
>> http://www.pernica.org
>>
>>
>>
>>
>
>
--
Děkuji a s pozdravem
Jan Pernica
===========================================
Pernica IT Solutions
Masarykovo náměstí 8
664 51 Šlapanice
Czech Republic
tel,fax: +420 544 245 068
mobile: +420 777 634 665
mailto:jan.pernica@pernica.org
http://www.pernica.org
Re: Locking
Posted by Fabián Mandelbaum <fm...@gmail.com>.
Hello Jan,
indeed there's always a few PROPFIND (usually starting at / ) to find
out about the DAV capabilities of the server (I guess, I didn't
confirm this, but seen all DAV clients do the same thing), and then
the 'real' requests are performed (LOCK, PUT, UNLOCK)
Even if it would make perfect sense to do the LOCK 1st and then the
GET, when opening a file, I think it's more conservative to do the GET
first, and only do the LOCK if the file could be gotten fine (GET
succeeded).
Maybe the LOCK, GET, UNLOCK sequence you are seeing is because there's
some network (or other) problem when performing the GET and the file
cannot be properly retreived?
Food for thought. Good luck!
2010/9/22 Jan Pernica <ja...@pernica.org>:
> Hello Fabian
>
> MS Word asks dav to lock the file. OO does not. :-(
> I thought that I can ask client to send LOCK/UNLOCK. Interesting is that
> Linux OO sends LOCK/UNLOCK but in very strange order.
> methods called:
> LOCK
> GET
> UNLOCK
> PUT
>
> and few PROPFIND
>
> I would expect PUT to be in brackets of LOCK/UNLOCK
>
> thank you anyway
>
> Jan
>
>
> On 22.9.2010 12:28, Fabián Mandelbaum wrote:
>>
>> Hello Jan,
>>
>> usually it's the WebDAV client (in this case OpenOffice 3.2.1) that
>> should (must?) lock the file. That is, it's not the server that's
>> going to automatically lock the file when someone opens it, but it's
>> the client (XML editor) that asks the server explicitly to lock the
>> file when opening it and then to unlock it when closing the file.
>>
>> For example, XMLMind's XXE works this way (didn't try lots of other
>> editors, but I think this is the way things are to be done).
>>
>> Good luck.
>>
>> 2010/9/22 Jan Pernica<ja...@pernica.org>:
>>>
>>> Hi. I just found jackrabbit as a good start point for our WebDAV
>>> project.
>>> I have run standalone server to find features of jackrabbit and I found
>>> following problem:
>>> Using OpenOffice 3.2.1 I am able to open the same document from two
>>> places
>>> and both of them can write the content.
>>>
>>> the questions is:
>>> How to lock document to be read-only if it is edited by some user?
>>>
>>> Thanks for any hints
>>>
>>> Regards
>>>
>>> Jan
>>>
>>
>>
>
> --
> Děkuji a s pozdravem
>
> Jan Pernica
> ===========================================
> Pernica IT Solutions
> Masarykovo náměstí 8
> 664 51 Šlapanice
> Czech Republic
> tel,fax: +420 544 245 068
> mobile: +420 777 634 665
> mailto:jan.pernica@pernica.org
> http://www.pernica.org
>
>
>
>
--
Fabián Mandelbaum
IS Engineer
Re: Locking
Posted by Jan Pernica <ja...@pernica.org>.
Hello Fabian
MS Word asks dav to lock the file. OO does not. :-(
I thought that I can ask client to send LOCK/UNLOCK. Interesting is that
Linux OO sends LOCK/UNLOCK but in very strange order.
methods called:
LOCK
GET
UNLOCK
PUT
and few PROPFIND
I would expect PUT to be in brackets of LOCK/UNLOCK
thank you anyway
Jan
On 22.9.2010 12:28, Fabián Mandelbaum wrote:
> Hello Jan,
>
> usually it's the WebDAV client (in this case OpenOffice 3.2.1) that
> should (must?) lock the file. That is, it's not the server that's
> going to automatically lock the file when someone opens it, but it's
> the client (XML editor) that asks the server explicitly to lock the
> file when opening it and then to unlock it when closing the file.
>
> For example, XMLMind's XXE works this way (didn't try lots of other
> editors, but I think this is the way things are to be done).
>
> Good luck.
>
> 2010/9/22 Jan Pernica<ja...@pernica.org>:
>> Hi. I just found jackrabbit as a good start point for our WebDAV project.
>> I have run standalone server to find features of jackrabbit and I found
>> following problem:
>> Using OpenOffice 3.2.1 I am able to open the same document from two places
>> and both of them can write the content.
>>
>> the questions is:
>> How to lock document to be read-only if it is edited by some user?
>>
>> Thanks for any hints
>>
>> Regards
>>
>> Jan
>>
>
>
--
Děkuji a s pozdravem
Jan Pernica
===========================================
Pernica IT Solutions
Masarykovo náměstí 8
664 51 Šlapanice
Czech Republic
tel,fax: +420 544 245 068
mobile: +420 777 634 665
mailto:jan.pernica@pernica.org
http://www.pernica.org
Re: Locking
Posted by Fabián Mandelbaum <fm...@gmail.com>.
Hello Jan,
usually it's the WebDAV client (in this case OpenOffice 3.2.1) that
should (must?) lock the file. That is, it's not the server that's
going to automatically lock the file when someone opens it, but it's
the client (XML editor) that asks the server explicitly to lock the
file when opening it and then to unlock it when closing the file.
For example, XMLMind's XXE works this way (didn't try lots of other
editors, but I think this is the way things are to be done).
Good luck.
2010/9/22 Jan Pernica <ja...@pernica.org>:
> Hi. I just found jackrabbit as a good start point for our WebDAV project.
> I have run standalone server to find features of jackrabbit and I found
> following problem:
> Using OpenOffice 3.2.1 I am able to open the same document from two places
> and both of them can write the content.
>
> the questions is:
> How to lock document to be read-only if it is edited by some user?
>
> Thanks for any hints
>
> Regards
>
> Jan
>
--
Fabián Mandelbaum
IS Engineer