RE: A question on security configuration

2004-08-30 Thread Andreas Probst
On 30 Aug 2004 at 14:48, Ritu Kedia wrote:

 Hi Andreas,

 My application does use Slide's WebDAV Client Lib for communicating with
 Slide. So yes, both the direct access(via Word) and the access from my
 application are via WebDAV. I want to disable slide security checks in the
 direct access modeI would most likely use James' cluster refresh
 solution along with custom security implementation...

So everybody is allowed to access as long as he or she goes via
a WebDAV client? Is this really what you want?


 With reference to what you pointed below regarding performance issues with
 DeltaV turned on: Have you already faced a problem with that? If yes, then
 what is the nature of the performance problem? Is it just due to security
 checks or does it exist even with security turned off (i.e. for puts,
 checkin-checkout, etc)?

I did not face the problem with the history folder, but I did
experience it with normal folders. Putting the tenth thousand
document into a single collection needs about 30 seconds. So
having a collection in /history for each document would cause
performance issues even if you don't have a single huge
collection under /files. Therefor the hack is an interesting
solution for this.

The reason for the performance problem are:
1. adding a child means deleting all existing children from the
store and adding the existing plus the new one.
2. loading a collection (Structure.retrieve()) means
instantiating all children of this collection on stock, even if
they are not needed.

I haven't got experience with Security, but I think as long as
you don't have very many ACLs the security checks should not
slow down the system too much.

 I use DeltaV with both auto-versioning and security turned off. But I
 version every file in the system. Do you see any issues with the versioning
 once the # of files in the repository has gone above a particular limit? (I
 delete the version history when a file is deleted)

 Thanks for your comments.
 Regards,
 Ritu

 -Original Message-
 From: Andreas Probst [mailto:[EMAIL PROTECTED]
 Sent: Saturday, August 28, 2004 2:53 AM
 To: Slide Users Mailing List
 Subject: RE: A question on security configuration


 On 27 Aug 2004 at 13:19, Ritu Kedia wrote:

  :( ... The distinguishing factor in my requests is neither the user
  credential nor the resource being accessed. The same user should be able
 to
  access the Slide Repository either via my WebService or via
  MS-Word/Excel/etc. I.e. The same user could access the same resource in
  either mode. When accessed via WebService, my application is doing the
  authorization. When accessed directly, I would have to override the
 default
  slide security implementation with my custom implementation.

 Can't you develop your HTTP application as a WebDAV client
 talking to Slide. You would use the login name and the password
 of the HTTP user to connect to Slide via WebDAV. So the
 information about who did the PUTs etc. wouldn't be lost. You
 would not need to implement the Security yourself. WebDAV users
 (Word) would talk to Slide directly.

 Actually checking the security stuff is not that expensive,
 although this probably depends on the number of ACLs on the
 path. You should be more concerned about performance when you
 get big directories, i.e. with more than thousand children. If
 you use DeltaV the /history folder could become a performance
 issue very soon.

 Maybe you've already explained why this is not possible for you,
 if so please excuse this remark...

 Regards,

 Andreas

 
  I think I would have to try the clustering solution only with my custom
  security implementation (since the direct slide access should also follow
  the same security checks as done in my application). But I won't be able
 to
  get to it may be for another month.
  A couple of questions regarding custom security implementation...
  1. Is the security implementation class configurable via Domain.xml? There
  is a security store configuration in Domain.xml but I haven't seen the
 entry
  for the security helper class.
  2. Which methods would have to be implemented if I am interested only in
 the
  authorization checks and not the assignments?
 
  Thanks,
  Ritu
 
  -Original Message-
  From: James Mason [mailto:[EMAIL PROTECTED]
  Sent: Friday, August 27, 2004 11:44 AM
  To: Slide Users Mailing List
  Subject: Re: A question on security configuration
 
 
  Done a little more thinking about this. I think separate namespaces
  sounds like a good idea, but there may be a problem. Since the Store
  configurations are per-namespace it's likely that the ExtendedStore
  cache will be per namespace as well. If this is the case then you're
  back to a situation where you'll need clustering to keep the caches in
  sync. Unless you really want everything to run in the same webapp you'd
  probably be better off just running a cluster with two nodes.
 
  Stefan's suggestion gave me an idea, though (several actually). What you

Re: A question on security configuration

2004-08-27 Thread James Mason
Done a little more thinking about this. I think separate namespaces 
sounds like a good idea, but there may be a problem. Since the Store 
configurations are per-namespace it's likely that the ExtendedStore 
cache will be per namespace as well. If this is the case then you're 
back to a situation where you'll need clustering to keep the caches in 
sync. Unless you really want everything to run in the same webapp you'd 
probably be better off just running a cluster with two nodes.

Stefan's suggestion gave me an idea, though (several actually). What you 
really need is a way to bypass the security checks in SecurityImpl based 
on some aspect of the request. I went through several ideas involving 
extending WebdavServelt or Domain to provide different 
NamespaceAccessTokens with different Security implementations based on 
where the request came from. This should be viable, but as I was writing 
this I realized that simply providing your own Security implementation 
that always returned true for a specific user should be enough. You'll 
still need to authenticate to the app server as that user, but since the 
Security implementation doesn't actually do any checking it should speed 
things up. For requests that aren't from the special user come in your 
implementation can just call ACLSecurityImpl (or another implementation) 
to do the checking, which should add very little overhead to the 
existing system.

-James
Ritu Kedia wrote:
BTW how does JAAS decide what client currently accesses the webdav server?

JAAS can't detect that. In my case below I would have distinguished between
the 2 modes by the namespace (if that solution was possible). 

Regards,
Ritu
-Original Message-
From: Stefan Lützkendorf [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 26, 2004 2:50 PM
To: Slide Users Mailing List
Subject: Re: A question on security configuration

I recently thought about a scoped SecurityImpl because we want
to have different security checking mechanics on different scopes.
On one scope we want to use Slides ACL Security and on an other
we want to use the Security checking of our own system.
We could of course have a SecurityImpl that permits all actions.
But I'm not sure that meets your problem, because your need to use
different scopes.
BTW how does JAAS decide what client currently accesses the webdav server?
Regards, Stefan
Ritu Kedia wrote:
I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for
the
client.
Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be
done
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?
One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this
depends
on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.
Regards,
Ritu

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RE: A question on security configuration

2004-08-27 Thread Ritu Kedia
:( ... The distinguishing factor in my requests is neither the user
credential nor the resource being accessed. The same user should be able to
access the Slide Repository either via my WebService or via
MS-Word/Excel/etc. I.e. The same user could access the same resource in
either mode. When accessed via WebService, my application is doing the
authorization. When accessed directly, I would have to override the default
slide security implementation with my custom implementation. 

I think I would have to try the clustering solution only with my custom
security implementation (since the direct slide access should also follow
the same security checks as done in my application). But I won't be able to
get to it may be for another month.
A couple of questions regarding custom security implementation... 
1. Is the security implementation class configurable via Domain.xml? There
is a security store configuration in Domain.xml but I haven't seen the entry
for the security helper class.
2. Which methods would have to be implemented if I am interested only in the
authorization checks and not the assignments?

Thanks,
Ritu

-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Friday, August 27, 2004 11:44 AM
To: Slide Users Mailing List
Subject: Re: A question on security configuration


Done a little more thinking about this. I think separate namespaces 
sounds like a good idea, but there may be a problem. Since the Store 
configurations are per-namespace it's likely that the ExtendedStore 
cache will be per namespace as well. If this is the case then you're 
back to a situation where you'll need clustering to keep the caches in 
sync. Unless you really want everything to run in the same webapp you'd 
probably be better off just running a cluster with two nodes.

Stefan's suggestion gave me an idea, though (several actually). What you 
really need is a way to bypass the security checks in SecurityImpl based 
on some aspect of the request. I went through several ideas involving 
extending WebdavServelt or Domain to provide different 
NamespaceAccessTokens with different Security implementations based on 
where the request came from. This should be viable, but as I was writing 
this I realized that simply providing your own Security implementation 
that always returned true for a specific user should be enough. You'll 
still need to authenticate to the app server as that user, but since the 
Security implementation doesn't actually do any checking it should speed 
things up. For requests that aren't from the special user come in your 
implementation can just call ACLSecurityImpl (or another implementation) 
to do the checking, which should add very little overhead to the 
existing system.

-James

Ritu Kedia wrote:
BTW how does JAAS decide what client currently accesses the webdav
server?
 
 
 JAAS can't detect that. In my case below I would have distinguished
between
 the 2 modes by the namespace (if that solution was possible). 
 
 Regards,
 Ritu
 
 -Original Message-
 From: Stefan Lützkendorf [mailto:[EMAIL PROTECTED]
 Sent: Thursday, August 26, 2004 2:50 PM
 To: Slide Users Mailing List
 Subject: Re: A question on security configuration
 
 
 
 I recently thought about a scoped SecurityImpl because we want
 to have different security checking mechanics on different scopes.
 On one scope we want to use Slides ACL Security and on an other
 we want to use the Security checking of our own system.
 
 We could of course have a SecurityImpl that permits all actions.
 
 But I'm not sure that meets your problem, because your need to use
 different scopes.
 
 BTW how does JAAS decide what client currently accesses the webdav server?
 
 Regards, Stefan
 
 Ritu Kedia wrote:
 
I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for
 
 the
 
client.

Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be
 
 done
 
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?

One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this
 
 depends
 
on whether slide.properties is applicable per namespace

Re: A question on security configuration

2004-08-27 Thread Stefan Fromm
1. Is the security implementation class configurable via Domain.xml? There
is a security store configuration in Domain.xml but I haven't seen the entry
for the security helper class.
It is configurable. Under XPath /slide/namespace/configuration you can set parameters for the security helper. 
It is called acl_semantics and expects whether one of two standard values 
(all-grant-before-any-deny or legacy-all-grant-before-any-deny) or a class name of your own 
security helper implementation. See the constructor of NamespaceAccessToken where the class is loaded.
2. Which methods would have to be implemented if I am interested only in the
authorization checks and not the assignments?
I guess the only method to override is evaluateAcl() like done in ACLSecurityImpl.
Stefan
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Re: A question on security configuration

2004-08-27 Thread Stefan Ltzkendorf

Stefan Fromm wrote:
1. Is the security implementation class configurable via Domain.xml? 
There
is a security store configuration in Domain.xml but I haven't seen the 
entry
for the security helper class.

It is configurable. Under XPath /slide/namespace/configuration you can 
set parameters for the security helper. It is called acl_semantics and 
expects whether one of two standard values (all-grant-before-any-deny 
or legacy-all-grant-before-any-deny) or a class name of your own 
security helper implementation. See the constructor of 
NamespaceAccessToken where the class is loaded.

2. Which methods would have to be implemented if I am interested only 
in the
authorization checks and not the assignments?

I guess the only method to override is evaluateAcl() like done in 
ACLSecurityImpl.
evaluateAcl() is private so override
public boolean hasPermission(SlideToken token, ObjectNode objectNode, ActionNode 
actionNode)
e.g. you can use (if you extend ACLSecurityImpl
if (token.getCredentialsToken().getPrincipal().getName().equals(root)) {
return true;
} else {
return super(token, objectNode, actionNode);
}
Stefan
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RE: A question on security configuration

2004-08-27 Thread Andreas Probst
On 27 Aug 2004 at 13:19, Ritu Kedia wrote:

 :( ... The distinguishing factor in my requests is neither the user
 credential nor the resource being accessed. The same user should be able to
 access the Slide Repository either via my WebService or via
 MS-Word/Excel/etc. I.e. The same user could access the same resource in
 either mode. When accessed via WebService, my application is doing the
 authorization. When accessed directly, I would have to override the default
 slide security implementation with my custom implementation.

Can't you develop your HTTP application as a WebDAV client
talking to Slide. You would use the login name and the password
of the HTTP user to connect to Slide via WebDAV. So the
information about who did the PUTs etc. wouldn't be lost. You
would not need to implement the Security yourself. WebDAV users
(Word) would talk to Slide directly.

Actually checking the security stuff is not that expensive,
although this probably depends on the number of ACLs on the
path. You should be more concerned about performance when you
get big directories, i.e. with more than thousand children. If
you use DeltaV the /history folder could become a performance
issue very soon.

Maybe you've already explained why this is not possible for you,
if so please excuse this remark...

Regards,

Andreas


 I think I would have to try the clustering solution only with my custom
 security implementation (since the direct slide access should also follow
 the same security checks as done in my application). But I won't be able to
 get to it may be for another month.
 A couple of questions regarding custom security implementation...
 1. Is the security implementation class configurable via Domain.xml? There
 is a security store configuration in Domain.xml but I haven't seen the entry
 for the security helper class.
 2. Which methods would have to be implemented if I am interested only in the
 authorization checks and not the assignments?

 Thanks,
 Ritu

 -Original Message-
 From: James Mason [mailto:[EMAIL PROTECTED]
 Sent: Friday, August 27, 2004 11:44 AM
 To: Slide Users Mailing List
 Subject: Re: A question on security configuration


 Done a little more thinking about this. I think separate namespaces
 sounds like a good idea, but there may be a problem. Since the Store
 configurations are per-namespace it's likely that the ExtendedStore
 cache will be per namespace as well. If this is the case then you're
 back to a situation where you'll need clustering to keep the caches in
 sync. Unless you really want everything to run in the same webapp you'd
 probably be better off just running a cluster with two nodes.

 Stefan's suggestion gave me an idea, though (several actually). What you
 really need is a way to bypass the security checks in SecurityImpl based
 on some aspect of the request. I went through several ideas involving
 extending WebdavServelt or Domain to provide different
 NamespaceAccessTokens with different Security implementations based on
 where the request came from. This should be viable, but as I was writing
 this I realized that simply providing your own Security implementation
 that always returned true for a specific user should be enough. You'll
 still need to authenticate to the app server as that user, but since the
 Security implementation doesn't actually do any checking it should speed
 things up. For requests that aren't from the special user come in your
 implementation can just call ACLSecurityImpl (or another implementation)
 to do the checking, which should add very little overhead to the
 existing system.

 -James

 Ritu Kedia wrote:
 BTW how does JAAS decide what client currently accesses the webdav
 server?
 
 
  JAAS can't detect that. In my case below I would have distinguished
 between
  the 2 modes by the namespace (if that solution was possible).
 
  Regards,
  Ritu
 
  -Original Message-
  From: Stefan Lützkendorf [mailto:[EMAIL PROTECTED]
  Sent: Thursday, August 26, 2004 2:50 PM
  To: Slide Users Mailing List
  Subject: Re: A question on security configuration
 
 
 
  I recently thought about a scoped SecurityImpl because we want
  to have different security checking mechanics on different scopes.
  On one scope we want to use Slides ACL Security and on an other
  we want to use the Security checking of our own system.
 
  We could of course have a SecurityImpl that permits all actions.
 
  But I'm not sure that meets your problem, because your need to use
  different scopes.
 
  BTW how does JAAS decide what client currently accesses the webdav server?
 
  Regards, Stefan
 
  Ritu Kedia wrote:
 
 I am using Slide in 2 modes:
 1. From within my Application, in which case my application acts as the
 entry point for a client.
 2. From a third party client, in which case Slide is the entry point for
 
  the
 
 client.
 
 Slide is accessed from within my application using the Slide WebDAV client
 lib. Whereas it is accessed from the third party client via

Re: A question on security configuration

2004-08-26 Thread Stefan Lützkendorf
I recently thought about a scoped SecurityImpl because we want
to have different security checking mechanics on different scopes.
On one scope we want to use Slides ACL Security and on an other
we want to use the Security checking of our own system.
We could of course have a SecurityImpl that permits all actions.
But I'm not sure that meets your problem, because your need to use
different scopes.
BTW how does JAAS decide what client currently accesses the webdav server?
Regards, Stefan
Ritu Kedia wrote:
I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for the
client.
Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be done
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?
One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this depends
on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.
Regards,
Ritu

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RE: A question on security configuration

2004-08-26 Thread Ritu Kedia
BTW how does JAAS decide what client currently accesses the webdav server?

JAAS can't detect that. In my case below I would have distinguished between
the 2 modes by the namespace (if that solution was possible). 

Regards,
Ritu

-Original Message-
From: Stefan Lützkendorf [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 26, 2004 2:50 PM
To: Slide Users Mailing List
Subject: Re: A question on security configuration



I recently thought about a scoped SecurityImpl because we want
to have different security checking mechanics on different scopes.
On one scope we want to use Slides ACL Security and on an other
we want to use the Security checking of our own system.

We could of course have a SecurityImpl that permits all actions.

But I'm not sure that meets your problem, because your need to use
different scopes.

BTW how does JAAS decide what client currently accesses the webdav server?

Regards, Stefan

Ritu Kedia wrote:
 I am using Slide in 2 modes:
 1. From within my Application, in which case my application acts as the
 entry point for a client.
 2. From a third party client, in which case Slide is the entry point for
the
 client.
 
 Slide is accessed from within my application using the Slide WebDAV client
 lib. Whereas it is accessed from the third party client via WebDAV (e.g.
 WebFolders in MS).
 In both these cases, the authentication is done using JAAS. And
 authorization depends on the mode of access. When accessed from within my
 application, the authorization will be done by my application but when
 accessed directly from a 3rd party client, the authorization should be
done
 by Slide's security support. In other words, my requirement is to turn off
 Slide's security in one mode and turn it on in the other mode. Both modes
 would be active simultaneously. Could someone please provide me any
 hints/help with designing a solution for the above requirement?
 
 One thought is to have 2 different namespaces, one for each of the above
 mode. Both these namespaces would access the same store but would have
 different security configurations. Is this achievable? I think this
depends
 on whether slide.properties is applicable per namespace or per domain. If
 anyone has implemented such a solution, then please do let me know.
 
 
 Regards,
 Ritu
 
 
 
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Re: A question on security configuration

2004-08-25 Thread James Mason
Ok, so you don't like my ideas :).
I've never played with namespaces, so that could be a good option and I 
wouldn't know it :). However, since security is controlled in the 
slide.properties file you're probably going to need a completely 
separate instance of Slide.

So my *new* suggestion is to try running two instance of Slide in a 
cluster, one with security and the other without. There's info for how 
to configure this on the Wiki. Clustering is very untested at this 
point, so if you've got the time it would be great if you could put it 
through its paces :).

-James
Ritu Kedia wrote:
Thanks for the reply James.
Your approach has 2 problems:
1. The most important one is : I want to avoid slide security checks for
performance reasons and specially since I am already doing the
authorization, I definitely want to avoid slide side overhead.
2. Even if I ignore performance, I still face a problem with the user info
logging against every activity. In other words I lose the information about
who uploaded the file/locked it/checked it in.
What about the namespace solution... is it possible to configure different
security properties for a different namespace in the same App Server
instance?
Or could you suggest some other alternate whereby I could turn off security
checks when accessed from a particular client?
Regards,
Ritu
-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 24, 2004 10:28 PM
To: Slide Users Mailing List
Subject: Re: A question on security configuration
Ritu,
One option might be to have a user account with all access to every node 
in your store and always use that account when connecting with your 
application.

-James
Ritu Kedia wrote:

I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for
the
client.
Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be
done
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?
One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this
depends
on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.
Regards,
Ritu

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RE: A question on security configuration

2004-08-25 Thread Ritu Kedia
I very much appreciate your taking the time to think about the different
issues that people have (I have seen you giving great suggestions on a lot
of other issues too). Definitely thanks for your help. 

The second suggestion that you gave below about clustering, is exactly what
I was thinking of. But as you pointed out that it is a new feature and *very
untested*, I would opt for that solution as a last resort. At this point I
am looking for a very quick and sure shot solution. I was just hoping that
may be slide.properties could be configured per namespace. Alas I don't
think thats possible, at least with the current implementation.

One question on performance impact due to security checks: what is the most
time consuming aspect of slide security? Is it the enumeratePermissions
method? 

Regards,
Ritu

-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 26, 2004 9:42 AM
To: Slide Users Mailing List
Subject: Re: A question on security configuration


Ok, so you don't like my ideas :).

I've never played with namespaces, so that could be a good option and I 
wouldn't know it :). However, since security is controlled in the 
slide.properties file you're probably going to need a completely 
separate instance of Slide.

So my *new* suggestion is to try running two instance of Slide in a 
cluster, one with security and the other without. There's info for how 
to configure this on the Wiki. Clustering is very untested at this 
point, so if you've got the time it would be great if you could put it 
through its paces :).

-James

Ritu Kedia wrote:
 Thanks for the reply James.
 
 Your approach has 2 problems:
 1. The most important one is : I want to avoid slide security checks for
 performance reasons and specially since I am already doing the
 authorization, I definitely want to avoid slide side overhead.
 2. Even if I ignore performance, I still face a problem with the user info
 logging against every activity. In other words I lose the information
about
 who uploaded the file/locked it/checked it in.
 
 What about the namespace solution... is it possible to configure different
 security properties for a different namespace in the same App Server
 instance?
 Or could you suggest some other alternate whereby I could turn off
security
 checks when accessed from a particular client?
 
 Regards,
 Ritu
 
 -Original Message-
 From: James Mason [mailto:[EMAIL PROTECTED]
 Sent: Tuesday, August 24, 2004 10:28 PM
 To: Slide Users Mailing List
 Subject: Re: A question on security configuration
 
 
 Ritu,
 One option might be to have a user account with all access to every node 
 in your store and always use that account when connecting with your 
 application.
 
 -James
 
 Ritu Kedia wrote:
 
 
I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for
 
 the
 
client.

Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be
 
 done
 
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?

One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this
 
 depends
 
on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.


Regards,
Ritu



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Re: A question on security configuration

2004-08-25 Thread James Mason
Ritu Kedia wrote:
I very much appreciate your taking the time to think about the different
issues that people have (I have seen you giving great suggestions on a lot
of other issues too). Definitely thanks for your help. 
Thanks! I appreciate the compliment.
The second suggestion that you gave below about clustering, is exactly what
I was thinking of. But as you pointed out that it is a new feature and *very
untested*, I would opt for that solution as a last resort. At this point I
am looking for a very quick and sure shot solution. I was just hoping that
may be slide.properties could be configured per namespace. Alas I don't
think thats possible, at least with the current implementation.
One question on performance impact due to security checks: what is the most
time consuming aspect of slide security? Is it the enumeratePermissions
method? 
I think the problem is more with Security.hasPermission() since it 
iterates through all of the inheritted permissions. I could be wrong, 
though. Maybe someone else can shed some light on this.

-James
Regards,
Ritu
-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 26, 2004 9:42 AM
To: Slide Users Mailing List
Subject: Re: A question on security configuration
Ok, so you don't like my ideas :).
I've never played with namespaces, so that could be a good option and I 
wouldn't know it :). However, since security is controlled in the 
slide.properties file you're probably going to need a completely 
separate instance of Slide.

So my *new* suggestion is to try running two instance of Slide in a 
cluster, one with security and the other without. There's info for how 
to configure this on the Wiki. Clustering is very untested at this 
point, so if you've got the time it would be great if you could put it 
through its paces :).

-James
Ritu Kedia wrote:
Thanks for the reply James.
Your approach has 2 problems:
1. The most important one is : I want to avoid slide security checks for
performance reasons and specially since I am already doing the
authorization, I definitely want to avoid slide side overhead.
2. Even if I ignore performance, I still face a problem with the user info
logging against every activity. In other words I lose the information
about
who uploaded the file/locked it/checked it in.
What about the namespace solution... is it possible to configure different
security properties for a different namespace in the same App Server
instance?
Or could you suggest some other alternate whereby I could turn off
security
checks when accessed from a particular client?
Regards,
Ritu
-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 24, 2004 10:28 PM
To: Slide Users Mailing List
Subject: Re: A question on security configuration
Ritu,
One option might be to have a user account with all access to every node 
in your store and always use that account when connecting with your 
application.

-James
Ritu Kedia wrote:

I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for
the

client.
Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be
done

by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?
One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this
depends

on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.
Regards,
Ritu

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Re: A question on security configuration

2004-08-24 Thread James Mason
Ritu,
One option might be to have a user account with all access to every node 
in your store and always use that account when connecting with your 
application.

-James
Ritu Kedia wrote:
I am using Slide in 2 modes:
1. From within my Application, in which case my application acts as the
entry point for a client.
2. From a third party client, in which case Slide is the entry point for the
client.
Slide is accessed from within my application using the Slide WebDAV client
lib. Whereas it is accessed from the third party client via WebDAV (e.g.
WebFolders in MS).
In both these cases, the authentication is done using JAAS. And
authorization depends on the mode of access. When accessed from within my
application, the authorization will be done by my application but when
accessed directly from a 3rd party client, the authorization should be done
by Slide's security support. In other words, my requirement is to turn off
Slide's security in one mode and turn it on in the other mode. Both modes
would be active simultaneously. Could someone please provide me any
hints/help with designing a solution for the above requirement?
One thought is to have 2 different namespaces, one for each of the above
mode. Both these namespaces would access the same store but would have
different security configurations. Is this achievable? I think this depends
on whether slide.properties is applicable per namespace or per domain. If
anyone has implemented such a solution, then please do let me know.
Regards,
Ritu

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RE: A question on security configuration

2004-08-24 Thread Ritu Kedia
Thanks for the reply James.

Your approach has 2 problems:
1. The most important one is : I want to avoid slide security checks for
performance reasons and specially since I am already doing the
authorization, I definitely want to avoid slide side overhead.
2. Even if I ignore performance, I still face a problem with the user info
logging against every activity. In other words I lose the information about
who uploaded the file/locked it/checked it in.

What about the namespace solution... is it possible to configure different
security properties for a different namespace in the same App Server
instance?
Or could you suggest some other alternate whereby I could turn off security
checks when accessed from a particular client?

Regards,
Ritu

-Original Message-
From: James Mason [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 24, 2004 10:28 PM
To: Slide Users Mailing List
Subject: Re: A question on security configuration


Ritu,
One option might be to have a user account with all access to every node 
in your store and always use that account when connecting with your 
application.

-James

Ritu Kedia wrote:

 I am using Slide in 2 modes:
 1. From within my Application, in which case my application acts as the
 entry point for a client.
 2. From a third party client, in which case Slide is the entry point for
the
 client.
 
 Slide is accessed from within my application using the Slide WebDAV client
 lib. Whereas it is accessed from the third party client via WebDAV (e.g.
 WebFolders in MS).
 In both these cases, the authentication is done using JAAS. And
 authorization depends on the mode of access. When accessed from within my
 application, the authorization will be done by my application but when
 accessed directly from a 3rd party client, the authorization should be
done
 by Slide's security support. In other words, my requirement is to turn off
 Slide's security in one mode and turn it on in the other mode. Both modes
 would be active simultaneously. Could someone please provide me any
 hints/help with designing a solution for the above requirement?
 
 One thought is to have 2 different namespaces, one for each of the above
 mode. Both these namespaces would access the same store but would have
 different security configurations. Is this achievable? I think this
depends
 on whether slide.properties is applicable per namespace or per domain. If
 anyone has implemented such a solution, then please do let me know.
 
 
 Regards,
 Ritu
 
 
 
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 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 

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