Than you Peter,
Asking "how to get the filename", I meant something like
D:\DSPACE.5.1\DSPACE\assetstore\22\89\11\22891139848631067003303488755830361888
Best regards
Evgeni
On Tue, May 5, 2015 at 12:23 AM, Peter Dietz <pe...@longsight.com> wrote:
> Hi Evgeni,
>
> B: Use the REST API to get the filename from bitstreamID.
> There is an endpoint: /rest/bitstream/:id
> https://wiki.duraspace.org/display/DSDOC5x/REST+API#RESTAPI-Bitstreams
>
> Example: http://trydspace5.longsight.com/rest/bitstreams/1?expand=all
> <bitstream>
> <id>1</id>
> <name>STAL9781614992707-0023.pdf</name>
> <type>bitstream</type>
> <bundleName>ORIGINAL</bundleName>
> ...
>
> A: This one is more complicated. My usage of jsessionID has been handling
> load balancing. (We would put the jsessionID and some attribs into
> distributed redis, and then the other instances would be on the same page
> regardless of which instance served other requests.) You would need a way
> to get the eperson of the current visitor. The REST API doesn't give you
> the ability to check on some user's authorization. It assumes that you
> would log in as a user, and it will let you know if you are authorized to
> access a resource.
>
> There is a REST endpoint:
>
> - GET /bitstreams/{bitstream id}/policy - Return bitstream policies.
>
> I suppose you could have an admin account access the REST API, and look at
> the policy, and look for a policy that refers to the specific eperson. Or
> if you have a simpler use case, look for Anonymous READ.
>
> You could always build a new REST endpoint for DSpace to help perform a
> specific authorization check for you. Maybe have a way for you to log in as
> an admin to REST API, then a log-in-as method to cloak yourself as the
> in-question eperson to do the access check. Or maybe create
> /bitstreams/:bitstreamID/authorized?eperson=:epersonID
>
>
> Anyways, the DSpace method you would want to call, if at all possible is:
> AuthorizeManager.authorizeAction(Context c, DSpaceObject o, int action)
> You can create a context, and specify which user you are looking for. A
> bitstream is a DSpaceObject. Action would be something like Constants.READ.
>
> Another route could be in looking at including the DSpace jar into your
> Java project, and then calling the relevant DSpace method. I remember Jacob
> Brown had something for JRuby to pull in some DSpace jars:
> https://github.com/kardeiz/dscriptor
>
> Hope this helps.
>
>
>
> ________________
> Peter Dietz
> Longsight
> www.longsight.com
> pe...@longsight.com
> p: 740-599-5005 x809
>
> On Mon, May 4, 2015 at 10:43 AM, Evgeni Dimitrov <dimitrove....@gmail.com>
> wrote:
>
>> If there is a web application (running in the same Tomcat as DSpace),
>> which can display a particular kind of items (consisting of several files),
>>
>> A. is there a way for it to check access rights to the item based on the
>> JSESSIONID?
>> B. is there a way for it to get the real file name based on the bitstream
>> id?
>>
>> Best regards
>> Evgeni
>>
>>
>>
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>
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