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Posted to users@sling.apache.org by Alessandro Novarini <a....@sourcesense.com> on 2011/02/09 16:54:47 UTC

Re: AW: Sling+ModeShape

Hello list,

As promised, here a quick update and a not-so-quick question.

I think we're almost done with the modeshape-server bundle, we fought a lot with the class loading but now it looks good.

But...

We started this work assuming that replacing the jackrabbit-server bundle was enough to have a sling working, as Carl also confirmed right below.
Probably we still miss something, but we are now struggling with authentication and authorization; in particular two issues:

ModeShape relies on JAAS to check for valid credentials, and at the moment it's complaining that no configuration is found.
We tried to add a jaas config file, made Sling point to that file, but we don't know if there are LoginModules already available or if we need to add one to the classpath (we asked to ModeShape forum and they suggested to look at JBoss Picketbox [1]).

So at the moment we replaced the mechanism of authentication with a custom one, and ModeShape is quite happy with that, even though we would like to align the functionality with what Sling is using and is expecting by jackrabbit.
We came across a strange side-effect there, because now from the web console we cannot do anything without having Sling asking for a login.
Useless to say that whatever we enter, the login fails :(

Going a step further... we're examining the class org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebConsoleSecurityProvider, the one that tries to login to the repository passing a SimpleCredentials (triggering the JAAS mechanism skipping our custom one) - method authenticate(String, String).

What scared us was the code just after the repository.login(creds): it seems a bit implementation-dependent,  since all the code is into an if (session instanceof JackrabbitSession), otherwise the method will return null (no success).

Do you confirm what we are thinking, that even fixing our current issue, we're going to have a "broken" web console?

Thank you in advance
Ale
 

On Jan 13, 2011, at 4:11 AM, Carl Hall wrote:

> We (Sakai Project) are working to replace JCR with a non-JCR backend
> (Cassandra and any JDBC; our mail list details the reasons and factors).
> While this isn't JackRabbit -> ModeShape (staying with JCR will be much
> easier), we can certainly attest that changing the storage engine is
> possible with some work.  The Sling code does a great job of decoupling
> itself from the storage mechanism.
> 
> 
> On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini <
> a.novarini@sourcesense.com> wrote:
> 
>> Hi Simon,
>> 
>> Fine for me, we should start working on the server bundle soon.
>> I'll let you know what our progresses are.
>> 
>> Thanks
>> Ale
>> 
>> 
>> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote:
>> 
>>> Hi Ale
>>> 
>>> I posted this question originally. Just to give you an update on where we
>> stand - we haven't started this work yet, and it probably will be mid
>> January until we do. I suggest we share our findings on this list ...
>>> 
>>> Regards
>>> Simon
>>> 
>>> -----Ursprüngliche Nachricht-----
>>> Von: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
>>> Gesendet: Mittwoch, 15. Dezember 2010 18:43
>>> An: users@sling.apache.org
>>> Betreff: Sling+ModeShape
>>> 
>>> Hello list,
>>> 
>>> I've just subscribed because I would like to know if any progress has
>> been made on the replacement of Jackrabbit with another JCR implementation,
>> as discussed here:
>>> 
>> http://dev.day.com/discussion-groups/content/lists/sling-users/2010-11/2010-11-16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_Simon.html
>>> 
>>> I've tried in the last couple of days to work on it too, taking as sample
>> the org.apache.sling.auth.openid bundle, and I've had some hard time because
>> at the moment I have little knowledge of ModeShape; anyway, if there was the
>> will to work openly on the project, I would be glad to contribute in some
>> way.
>>> 
>>> I don't have the original thread as email so sorry for not directly
>> replying to it.
>>> 
>>> Thanks
>>> Ale
>> 
>> 


RE: AW: Sling+ModeShape

Posted by Mike Müller <mi...@mysign.ch>.
Hi Ale

Thanks for sharing your experiences with us. I will have a look at it.
I hope we hear more from you as you make progress.

best regards
mike

> -----Original Message-----
> From: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
> Sent: Thursday, May 05, 2011 11:48 AM
> To: users@sling.apache.org
> Subject: Re: AW: Sling+ModeShape
> 
> Hello everyone,
> 
> This is another update about our attempt to replace Jackrabbit with
> ModeShape in Sling.
> 
> First of all, sorry for the long wait, but we needed to be sure we had the OK
> from our
> customer before releasing what we have done in this period.
> 
> The good news is that we are ready to release our work, you can find
> the projects here:
> 
> https://github.com/sourcesense/stone
> 
> and here:
> 
> https://github.com/sourcesense/modeshape-stone
> 
> The second one is basically a fork of modeshape with some patches we still
> have
> to submit, but at the moment we're unsure if these are "real" fixes or not;
> maybe some feedback from you will help to clarify this matter.
> 
> The bad news is that the project, in the interest of releasing early and
> releasing often, is not fully working yet.
> 
> We have two blocking issues, with two different configurations, and you can
> read more about them in the 'Issues' section of the project site.
> 
> Obviously every feedback (and contribution) will be well accepted, and
> for the ones interested, please don't hesitate to ask also using our
> internal mail alias stone@sourcesense.com
> 
> Thanks for your patience and understanding
> Ale
> 
> On Feb 15, 2011, at 12:02 PM, Felix Meschberger wrote:
> 
> > Hi
> >
> > thanks for the feedback and congratulations to your success.
> >
> > Along with Mike Moulton and Mike Müller I invite to contribute back
> > either in the form of contributing the project setup  or with some
> > documentation on our wiki.
> >
> > Thanks !
> >
> > Regards
> > Felix
> >
> > Am Mittwoch, den 09.02.2011, 15:54 +0000 schrieb Alessandro Novarini:
> >> Hello list,
> >>
> >> As promised, here a quick update and a not-so-quick question.
> >>
> >> I think we're almost done with the modeshape-server bundle, we fought
> a lot with the class loading but now it looks good.
> >>
> >> But...
> >>
> >> We started this work assuming that replacing the jackrabbit-server bundle
> was enough to have a sling working, as Carl also confirmed right below.
> >> Probably we still miss something, but we are now struggling with
> authentication and authorization; in particular two issues:
> >>
> >> ModeShape relies on JAAS to check for valid credentials, and at the
> moment it's complaining that no configuration is found.
> >> We tried to add a jaas config file, made Sling point to that file, but we
> don't know if there are LoginModules already available or if we need to add
> one to the classpath (we asked to ModeShape forum and they suggested to
> look at JBoss Picketbox [1]).
> >>
> >> So at the moment we replaced the mechanism of authentication with a
> custom one, and ModeShape is quite happy with that, even though we
> would like to align the functionality with what Sling is using and is expecting
> by jackrabbit.
> >> We came across a strange side-effect there, because now from the web
> console we cannot do anything without having Sling asking for a login.
> >> Useless to say that whatever we enter, the login fails :(
> >>
> >> Going a step further... we're examining the class
> org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebC
> onsoleSecurityProvider, the one that tries to login to the repository passing a
> SimpleCredentials (triggering the JAAS mechanism skipping our custom one)
> - method authenticate(String, String).
> >>
> >> What scared us was the code just after the repository.login(creds): it
> seems a bit implementation-dependent,  since all the code is into an if
> (session instanceof JackrabbitSession), otherwise the method will return null
> (no success).
> >>
> >> Do you confirm what we are thinking, that even fixing our current issue,
> we're going to have a "broken" web console?
> >>
> >> Thank you in advance
> >> Ale
> >>
> >>
> >> On Jan 13, 2011, at 4:11 AM, Carl Hall wrote:
> >>
> >>> We (Sakai Project) are working to replace JCR with a non-JCR backend
> >>> (Cassandra and any JDBC; our mail list details the reasons and factors).
> >>> While this isn't JackRabbit -> ModeShape (staying with JCR will be much
> >>> easier), we can certainly attest that changing the storage engine is
> >>> possible with some work.  The Sling code does a great job of decoupling
> >>> itself from the storage mechanism.
> >>>
> >>>
> >>> On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini <
> >>> a.novarini@sourcesense.com> wrote:
> >>>
> >>>> Hi Simon,
> >>>>
> >>>> Fine for me, we should start working on the server bundle soon.
> >>>> I'll let you know what our progresses are.
> >>>>
> >>>> Thanks
> >>>> Ale
> >>>>
> >>>>
> >>>> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote:
> >>>>
> >>>>> Hi Ale
> >>>>>
> >>>>> I posted this question originally. Just to give you an update on where
> we
> >>>> stand - we haven't started this work yet, and it probably will be mid
> >>>> January until we do. I suggest we share our findings on this list ...
> >>>>>
> >>>>> Regards
> >>>>> Simon
> >>>>>
> >>>>> -----Ursprüngliche Nachricht-----
> >>>>> Von: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
> >>>>> Gesendet: Mittwoch, 15. Dezember 2010 18:43
> >>>>> An: users@sling.apache.org
> >>>>> Betreff: Sling+ModeShape
> >>>>>
> >>>>> Hello list,
> >>>>>
> >>>>> I've just subscribed because I would like to know if any progress has
> >>>> been made on the replacement of Jackrabbit with another JCR
> implementation,
> >>>> as discussed here:
> >>>>>
> >>>> http://dev.day.com/discussion-groups/content/lists/sling-users/2010-
> 11/2010-11-
> 16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_S
> imon.html
> >>>>>
> >>>>> I've tried in the last couple of days to work on it too, taking as sample
> >>>> the org.apache.sling.auth.openid bundle, and I've had some hard time
> because
> >>>> at the moment I have little knowledge of ModeShape; anyway, if there
> was the
> >>>> will to work openly on the project, I would be glad to contribute in
> some
> >>>> way.
> >>>>>
> >>>>> I don't have the original thread as email so sorry for not directly
> >>>> replying to it.
> >>>>>
> >>>>> Thanks
> >>>>> Ale
> >>>>
> >>>>
> >>
> >
> >


Re: AW: Sling+ModeShape

Posted by Alessandro Novarini <a....@sourcesense.com>.
Hello everyone,

This is another update about our attempt to replace Jackrabbit with ModeShape in Sling.

First of all, sorry for the long wait, but we needed to be sure we had the OK from our
customer before releasing what we have done in this period.

The good news is that we are ready to release our work, you can find
the projects here:

https://github.com/sourcesense/stone

and here:

https://github.com/sourcesense/modeshape-stone

The second one is basically a fork of modeshape with some patches we still have
to submit, but at the moment we're unsure if these are "real" fixes or not;
maybe some feedback from you will help to clarify this matter.

The bad news is that the project, in the interest of releasing early and releasing often, is not fully working yet.
 
We have two blocking issues, with two different configurations, and you can
read more about them in the 'Issues' section of the project site.

Obviously every feedback (and contribution) will be well accepted, and
for the ones interested, please don't hesitate to ask also using our
internal mail alias stone@sourcesense.com

Thanks for your patience and understanding
Ale

On Feb 15, 2011, at 12:02 PM, Felix Meschberger wrote:

> Hi
> 
> thanks for the feedback and congratulations to your success.
> 
> Along with Mike Moulton and Mike Müller I invite to contribute back
> either in the form of contributing the project setup  or with some
> documentation on our wiki.
> 
> Thanks !
> 
> Regards
> Felix
> 
> Am Mittwoch, den 09.02.2011, 15:54 +0000 schrieb Alessandro Novarini: 
>> Hello list,
>> 
>> As promised, here a quick update and a not-so-quick question.
>> 
>> I think we're almost done with the modeshape-server bundle, we fought a lot with the class loading but now it looks good.
>> 
>> But...
>> 
>> We started this work assuming that replacing the jackrabbit-server bundle was enough to have a sling working, as Carl also confirmed right below.
>> Probably we still miss something, but we are now struggling with authentication and authorization; in particular two issues:
>> 
>> ModeShape relies on JAAS to check for valid credentials, and at the moment it's complaining that no configuration is found.
>> We tried to add a jaas config file, made Sling point to that file, but we don't know if there are LoginModules already available or if we need to add one to the classpath (we asked to ModeShape forum and they suggested to look at JBoss Picketbox [1]).
>> 
>> So at the moment we replaced the mechanism of authentication with a custom one, and ModeShape is quite happy with that, even though we would like to align the functionality with what Sling is using and is expecting by jackrabbit.
>> We came across a strange side-effect there, because now from the web console we cannot do anything without having Sling asking for a login.
>> Useless to say that whatever we enter, the login fails :(
>> 
>> Going a step further... we're examining the class org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebConsoleSecurityProvider, the one that tries to login to the repository passing a SimpleCredentials (triggering the JAAS mechanism skipping our custom one) - method authenticate(String, String).
>> 
>> What scared us was the code just after the repository.login(creds): it seems a bit implementation-dependent,  since all the code is into an if (session instanceof JackrabbitSession), otherwise the method will return null (no success).
>> 
>> Do you confirm what we are thinking, that even fixing our current issue, we're going to have a "broken" web console?
>> 
>> Thank you in advance
>> Ale
>> 
>> 
>> On Jan 13, 2011, at 4:11 AM, Carl Hall wrote:
>> 
>>> We (Sakai Project) are working to replace JCR with a non-JCR backend
>>> (Cassandra and any JDBC; our mail list details the reasons and factors).
>>> While this isn't JackRabbit -> ModeShape (staying with JCR will be much
>>> easier), we can certainly attest that changing the storage engine is
>>> possible with some work.  The Sling code does a great job of decoupling
>>> itself from the storage mechanism.
>>> 
>>> 
>>> On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini <
>>> a.novarini@sourcesense.com> wrote:
>>> 
>>>> Hi Simon,
>>>> 
>>>> Fine for me, we should start working on the server bundle soon.
>>>> I'll let you know what our progresses are.
>>>> 
>>>> Thanks
>>>> Ale
>>>> 
>>>> 
>>>> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote:
>>>> 
>>>>> Hi Ale
>>>>> 
>>>>> I posted this question originally. Just to give you an update on where we
>>>> stand - we haven't started this work yet, and it probably will be mid
>>>> January until we do. I suggest we share our findings on this list ...
>>>>> 
>>>>> Regards
>>>>> Simon
>>>>> 
>>>>> -----Ursprüngliche Nachricht-----
>>>>> Von: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
>>>>> Gesendet: Mittwoch, 15. Dezember 2010 18:43
>>>>> An: users@sling.apache.org
>>>>> Betreff: Sling+ModeShape
>>>>> 
>>>>> Hello list,
>>>>> 
>>>>> I've just subscribed because I would like to know if any progress has
>>>> been made on the replacement of Jackrabbit with another JCR implementation,
>>>> as discussed here:
>>>>> 
>>>> http://dev.day.com/discussion-groups/content/lists/sling-users/2010-11/2010-11-16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_Simon.html
>>>>> 
>>>>> I've tried in the last couple of days to work on it too, taking as sample
>>>> the org.apache.sling.auth.openid bundle, and I've had some hard time because
>>>> at the moment I have little knowledge of ModeShape; anyway, if there was the
>>>> will to work openly on the project, I would be glad to contribute in some
>>>> way.
>>>>> 
>>>>> I don't have the original thread as email so sorry for not directly
>>>> replying to it.
>>>>> 
>>>>> Thanks
>>>>> Ale
>>>> 
>>>> 
>> 
> 
> 


Re: AW: Sling+ModeShape

Posted by Felix Meschberger <fm...@adobe.com>.
Hi

thanks for the feedback and congratulations to your success.

Along with Mike Moulton and Mike Müller I invite to contribute back
either in the form of contributing the project setup  or with some
documentation on our wiki.

Thanks !

Regards
Felix

Am Mittwoch, den 09.02.2011, 15:54 +0000 schrieb Alessandro Novarini: 
> Hello list,
> 
> As promised, here a quick update and a not-so-quick question.
> 
> I think we're almost done with the modeshape-server bundle, we fought a lot with the class loading but now it looks good.
> 
> But...
> 
> We started this work assuming that replacing the jackrabbit-server bundle was enough to have a sling working, as Carl also confirmed right below.
> Probably we still miss something, but we are now struggling with authentication and authorization; in particular two issues:
> 
> ModeShape relies on JAAS to check for valid credentials, and at the moment it's complaining that no configuration is found.
> We tried to add a jaas config file, made Sling point to that file, but we don't know if there are LoginModules already available or if we need to add one to the classpath (we asked to ModeShape forum and they suggested to look at JBoss Picketbox [1]).
> 
> So at the moment we replaced the mechanism of authentication with a custom one, and ModeShape is quite happy with that, even though we would like to align the functionality with what Sling is using and is expecting by jackrabbit.
> We came across a strange side-effect there, because now from the web console we cannot do anything without having Sling asking for a login.
> Useless to say that whatever we enter, the login fails :(
> 
> Going a step further... we're examining the class org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebConsoleSecurityProvider, the one that tries to login to the repository passing a SimpleCredentials (triggering the JAAS mechanism skipping our custom one) - method authenticate(String, String).
> 
> What scared us was the code just after the repository.login(creds): it seems a bit implementation-dependent,  since all the code is into an if (session instanceof JackrabbitSession), otherwise the method will return null (no success).
> 
> Do you confirm what we are thinking, that even fixing our current issue, we're going to have a "broken" web console?
> 
> Thank you in advance
> Ale
>  
> 
> On Jan 13, 2011, at 4:11 AM, Carl Hall wrote:
> 
> > We (Sakai Project) are working to replace JCR with a non-JCR backend
> > (Cassandra and any JDBC; our mail list details the reasons and factors).
> > While this isn't JackRabbit -> ModeShape (staying with JCR will be much
> > easier), we can certainly attest that changing the storage engine is
> > possible with some work.  The Sling code does a great job of decoupling
> > itself from the storage mechanism.
> > 
> > 
> > On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini <
> > a.novarini@sourcesense.com> wrote:
> > 
> >> Hi Simon,
> >> 
> >> Fine for me, we should start working on the server bundle soon.
> >> I'll let you know what our progresses are.
> >> 
> >> Thanks
> >> Ale
> >> 
> >> 
> >> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote:
> >> 
> >>> Hi Ale
> >>> 
> >>> I posted this question originally. Just to give you an update on where we
> >> stand - we haven't started this work yet, and it probably will be mid
> >> January until we do. I suggest we share our findings on this list ...
> >>> 
> >>> Regards
> >>> Simon
> >>> 
> >>> -----Ursprüngliche Nachricht-----
> >>> Von: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
> >>> Gesendet: Mittwoch, 15. Dezember 2010 18:43
> >>> An: users@sling.apache.org
> >>> Betreff: Sling+ModeShape
> >>> 
> >>> Hello list,
> >>> 
> >>> I've just subscribed because I would like to know if any progress has
> >> been made on the replacement of Jackrabbit with another JCR implementation,
> >> as discussed here:
> >>> 
> >> http://dev.day.com/discussion-groups/content/lists/sling-users/2010-11/2010-11-16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_Simon.html
> >>> 
> >>> I've tried in the last couple of days to work on it too, taking as sample
> >> the org.apache.sling.auth.openid bundle, and I've had some hard time because
> >> at the moment I have little knowledge of ModeShape; anyway, if there was the
> >> will to work openly on the project, I would be glad to contribute in some
> >> way.
> >>> 
> >>> I don't have the original thread as email so sorry for not directly
> >> replying to it.
> >>> 
> >>> Thanks
> >>> Ale
> >> 
> >> 
> 



Re: AW: Sling+ModeShape

Posted by Mike Moulton <mi...@meltmedia.com>.
Alessandro,

I'm curious, does your group have any plans on open-sourcing your ModeShape server bundle or donating it back to the ASF?

The reason I ask is my group is about to kick of a new project and we were going to evaluate the integration of ModeShape within Sling. Didn't want to reinvent the wheel if we don't have to.

Regards,
Mike




On Feb 10, 2011, at 9:08 AM, Alessandro Novarini wrote:

> Hi Vidar,
> 
> You're right, the bundle in optional, stopping it made my bundle "work".
> 
> Thanks for the help
> Ale
> 
> On Feb 9, 2011, at 6:12 PM, Vidar Ramdal wrote:
> 
>> AFAIK, the Web Console Security Provider bundle is completely
>> optional. You can simply leave it out, and the web console will fall
>> back to the standard authentication method (a configured single
>> username/password pair, by default admin/admin).
>> 
>> 
>> -- 
>> Vidar S. Ramdal <vi...@idium.no> - http://www.idium.no
>> Sommerrogata 13-15, N-0255 Oslo, Norway
>> + 47 22 00 84 00
>> Quando omni flunkus moritatus!
> 


Re: AW: Sling+ModeShape

Posted by anjan <po...@gmail.com>.
Hi Ale, I saw the project at https://github.com/sourcesense/stone and would
like to know whether the issues mentioned were resolved or not.  Were you
able to use Modeshape in Sling finally?
- Anjan



--
View this message in context: http://apache-sling.73963.n3.nabble.com/Sling-ModeShape-tp2093482p4023948.html
Sent from the Sling - Users mailing list archive at Nabble.com.

Re: AW: Sling+ModeShape

Posted by Bertrand Delacretaz <bd...@apache.org>.
Hi,

On Tue, Feb 15, 2011 at 11:55 AM, Alessandro Novarini
<a....@sourcesense.com> wrote:
> ...We have plans about releasing the bundle, code and patches (the last ones for ModeShape) as soon as we can.
> Please note that the integration is still not working, though progresses are made day by day....

Note that Apache extras might be a good place for that, see
http://code.google.com/a/apache-extras.org/hosting/ and
http://blogs.apache.org/foundation/entry/the_apache_software_foundation_launches

(unless you already have a place to publish your code)

-Bertrand

Re: AW: Sling+ModeShape

Posted by Alessandro Novarini <a....@sourcesense.com>.
Hi all,

We have plans about releasing the bundle, code and patches (the last ones for ModeShape) as soon as we can.
Please note that the integration is still not working, though progresses are made day by day.

We're willing to open our work as soon as we finish what we are being paid to do (few weeks left).

If you need to start sooner than that, feel free to ask here or privately for any help we can provide.

Thanks a lot
Ale

On Feb 14, 2011, at 11:44 PM, Mike Müller wrote:

> Hi Ale
> 
> I - and maybe some others - would be interested in your Modeshape bundle.
> Can you publish the bundle and/or give some hints how you managed Modeshape to work with Sling.
> Maybe we can include this in our documentation on sling.apache.org.
> 
> best regards
> mike
> 
>> -----Original Message-----
>> From: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
>> Sent: Thursday, February 10, 2011 5:08 PM
>> To: users@sling.apache.org
>> Subject: Re: AW: Sling+ModeShape
>> 
>> Hi Vidar,
>> 
>> You're right, the bundle in optional, stopping it made my bundle "work".
>> 
>> Thanks for the help
>> Ale
>> 
>> On Feb 9, 2011, at 6:12 PM, Vidar Ramdal wrote:
>> 
>>> AFAIK, the Web Console Security Provider bundle is completely
>>> optional. You can simply leave it out, and the web console will fall
>>> back to the standard authentication method (a configured single
>>> username/password pair, by default admin/admin).
>>> 
>>> 
>>> --
>>> Vidar S. Ramdal <vi...@idium.no> - http://www.idium.no
>>> Sommerrogata 13-15, N-0255 Oslo, Norway
>>> + 47 22 00 84 00
>>> Quando omni flunkus moritatus!
> 


RE: AW: Sling+ModeShape

Posted by Mike Müller <mi...@mysign.ch>.
Hi Ale

I - and maybe some others - would be interested in your Modeshape bundle.
Can you publish the bundle and/or give some hints how you managed Modeshape to work with Sling.
Maybe we can include this in our documentation on sling.apache.org.

best regards
mike

> -----Original Message-----
> From: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
> Sent: Thursday, February 10, 2011 5:08 PM
> To: users@sling.apache.org
> Subject: Re: AW: Sling+ModeShape
> 
> Hi Vidar,
> 
> You're right, the bundle in optional, stopping it made my bundle "work".
> 
> Thanks for the help
> Ale
> 
> On Feb 9, 2011, at 6:12 PM, Vidar Ramdal wrote:
> 
> > AFAIK, the Web Console Security Provider bundle is completely
> > optional. You can simply leave it out, and the web console will fall
> > back to the standard authentication method (a configured single
> > username/password pair, by default admin/admin).
> >
> >
> > --
> > Vidar S. Ramdal <vi...@idium.no> - http://www.idium.no
> > Sommerrogata 13-15, N-0255 Oslo, Norway
> > + 47 22 00 84 00
> > Quando omni flunkus moritatus!


Re: AW: Sling+ModeShape

Posted by Alessandro Novarini <a....@sourcesense.com>.
Hi Vidar,

You're right, the bundle in optional, stopping it made my bundle "work".

Thanks for the help
Ale

On Feb 9, 2011, at 6:12 PM, Vidar Ramdal wrote:

> AFAIK, the Web Console Security Provider bundle is completely
> optional. You can simply leave it out, and the web console will fall
> back to the standard authentication method (a configured single
> username/password pair, by default admin/admin).
> 
> 
> -- 
> Vidar S. Ramdal <vi...@idium.no> - http://www.idium.no
> Sommerrogata 13-15, N-0255 Oslo, Norway
> + 47 22 00 84 00
> Quando omni flunkus moritatus!


Re: AW: Sling+ModeShape

Posted by Vidar Ramdal <vi...@idium.no>.
On Wed, Feb 9, 2011 at 4:54 PM, Alessandro Novarini
<a....@sourcesense.com> wrote:
> Hello list,
>
> As promised, here a quick update and a not-so-quick question.
>
> I think we're almost done with the modeshape-server bundle, we fought a lot with the class loading but now it looks good.
>
> But...
>
> We started this work assuming that replacing the jackrabbit-server bundle was enough to have a sling working, as Carl also confirmed right below.
> Probably we still miss something, but we are now struggling with authentication and authorization; in particular two issues:
>
> ModeShape relies on JAAS to check for valid credentials, and at the moment it's complaining that no configuration is found.
> We tried to add a jaas config file, made Sling point to that file, but we don't know if there are LoginModules already available or if we need to add one to the classpath (we asked to ModeShape forum and they suggested to look at JBoss Picketbox [1]).
>
> So at the moment we replaced the mechanism of authentication with a custom one, and ModeShape is quite happy with that, even though we would like to align the functionality with what Sling is using and is expecting by jackrabbit.
> We came across a strange side-effect there, because now from the web console we cannot do anything without having Sling asking for a login.
> Useless to say that whatever we enter, the login fails :(
>
> Going a step further... we're examining the class org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebConsoleSecurityProvider, the one that tries to login to the repository passing a SimpleCredentials (triggering the JAAS mechanism skipping our custom one) - method authenticate(String, String).
>
> What scared us was the code just after the repository.login(creds): it seems a bit implementation-dependent,  since all the code is into an if (session instanceof JackrabbitSession), otherwise the method will return null (no success).
>
> Do you confirm what we are thinking, that even fixing our current issue, we're going to have a "broken" web console?

AFAIK, the Web Console Security Provider bundle is completely
optional. You can simply leave it out, and the web console will fall
back to the standard authentication method (a configured single
username/password pair, by default admin/admin).


-- 
Vidar S. Ramdal <vi...@idium.no> - http://www.idium.no
Sommerrogata 13-15, N-0255 Oslo, Norway
+ 47 22 00 84 00
Quando omni flunkus moritatus!

Re: AW: Sling+ModeShape

Posted by Alessandro Novarini <a....@sourcesense.com>.
Sorry, as usual, I forgot the reference...

[1] http://www.jboss.org/picketbox

Regards
Ale

On Feb 9, 2011, at 4:54 PM, Alessandro Novarini wrote:

> Hello list,
> 
> As promised, here a quick update and a not-so-quick question.
> 
> I think we're almost done with the modeshape-server bundle, we fought a lot with the class loading but now it looks good.
> 
> But...
> 
> We started this work assuming that replacing the jackrabbit-server bundle was enough to have a sling working, as Carl also confirmed right below.
> Probably we still miss something, but we are now struggling with authentication and authorization; in particular two issues:
> 
> ModeShape relies on JAAS to check for valid credentials, and at the moment it's complaining that no configuration is found.
> We tried to add a jaas config file, made Sling point to that file, but we don't know if there are LoginModules already available or if we need to add one to the classpath (we asked to ModeShape forum and they suggested to look at JBoss Picketbox [1]).
> 
> So at the moment we replaced the mechanism of authentication with a custom one, and ModeShape is quite happy with that, even though we would like to align the functionality with what Sling is using and is expecting by jackrabbit.
> We came across a strange side-effect there, because now from the web console we cannot do anything without having Sling asking for a login.
> Useless to say that whatever we enter, the login fails :(
> 
> Going a step further... we're examining the class org.apache.sling.extensions.webconsolesecurityprovider.internal.SlingWebConsoleSecurityProvider, the one that tries to login to the repository passing a SimpleCredentials (triggering the JAAS mechanism skipping our custom one) - method authenticate(String, String).
> 
> What scared us was the code just after the repository.login(creds): it seems a bit implementation-dependent,  since all the code is into an if (session instanceof JackrabbitSession), otherwise the method will return null (no success).
> 
> Do you confirm what we are thinking, that even fixing our current issue, we're going to have a "broken" web console?
> 
> Thank you in advance
> Ale
> 
> 
> On Jan 13, 2011, at 4:11 AM, Carl Hall wrote:
> 
>> We (Sakai Project) are working to replace JCR with a non-JCR backend
>> (Cassandra and any JDBC; our mail list details the reasons and factors).
>> While this isn't JackRabbit -> ModeShape (staying with JCR will be much
>> easier), we can certainly attest that changing the storage engine is
>> possible with some work.  The Sling code does a great job of decoupling
>> itself from the storage mechanism.
>> 
>> 
>> On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini <
>> a.novarini@sourcesense.com> wrote:
>> 
>>> Hi Simon,
>>> 
>>> Fine for me, we should start working on the server bundle soon.
>>> I'll let you know what our progresses are.
>>> 
>>> Thanks
>>> Ale
>>> 
>>> 
>>> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote:
>>> 
>>>> Hi Ale
>>>> 
>>>> I posted this question originally. Just to give you an update on where we
>>> stand - we haven't started this work yet, and it probably will be mid
>>> January until we do. I suggest we share our findings on this list ...
>>>> 
>>>> Regards
>>>> Simon
>>>> 
>>>> -----Ursprüngliche Nachricht-----
>>>> Von: Alessandro Novarini [mailto:a.novarini@sourcesense.com]
>>>> Gesendet: Mittwoch, 15. Dezember 2010 18:43
>>>> An: users@sling.apache.org
>>>> Betreff: Sling+ModeShape
>>>> 
>>>> Hello list,
>>>> 
>>>> I've just subscribed because I would like to know if any progress has
>>> been made on the replacement of Jackrabbit with another JCR implementation,
>>> as discussed here:
>>>> 
>>> http://dev.day.com/discussion-groups/content/lists/sling-users/2010-11/2010-11-16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_Simon.html
>>>> 
>>>> I've tried in the last couple of days to work on it too, taking as sample
>>> the org.apache.sling.auth.openid bundle, and I've had some hard time because
>>> at the moment I have little knowledge of ModeShape; anyway, if there was the
>>> will to work openly on the project, I would be glad to contribute in some
>>> way.
>>>> 
>>>> I don't have the original thread as email so sorry for not directly
>>> replying to it.
>>>> 
>>>> Thanks
>>>> Ale
>>> 
>>> 
>