Hi Steve and George, I've opened up a JIRA issue to discuss this:
- https://jira.duraspace.org/browse/DS-740 The code that sets this at the moment is very simple, just two lines long. First all the permissions are cleared on the thumbnail, and then they are set to copy the parent. It could be quite easy to override this, but we need to be careful as not all filtered bitstreams would need this sort of treatment (e.g. extracted text of private documents). For example if the requirement was for a new filter-media command line option that says 'set all derivative bitstreams in the THUMBNAIL bundle to be Anonymous READ' then this wouldn't be too hard to do. If you could comment on the JIRA issue with your thoughts and requirements, that would be great. Thanks, Stuart Lewis IT Innovations Analyst and Developer Te Tumu Herenga The University of Auckland Library Auckland Mail Centre, Private Bag 92019, Auckland 1142, New Zealand Ph: +64 (0)9 373 7599 x81928 On 5/11/2010, at 2:32 AM, Steve Swinsburg wrote: > Hi George, > > Thanks for your reply. Do you have open access to any of your content or is > it all restricted? We have a mix which makes running the filter-media etc > scripts interesting. > > Ideally the solution would be to set permissions at a collection level for > each of the types of bundles. The item permissions would then inherit from > the collection, or override if policies are set on individual items.. I don't > seem to be able to do that (1.5). > > For reference, heres the (cutdown) SQL. This will update all thumbnail > bitstream policies and set them to anonymous. We only had to do it for one > group though. If you want to update intermediates, change THUMBNAIL to > BRANDED_PREVIEW. > update resourcepolicy > set epersongroup_id=0 > where policy_id in ( > select > rp.policy_id > from > resourcepolicy rp, > bundle2bitstream bb, > bundle b > where > b.name='THUMBNAIL' > and b.bundle_id=bb.bundle_id > and bb.bitstream_id=rp.resource_id > ); > > cheers, > Steve > > On 04/11/2010, at 11:59 PM, George Stanley Kozak wrote: > >> Steve: >> >> This is the way that thumbnails have worked for me at my site (we have been >> using DSpace since 2003). It can be frustrating. Your solution is >> interesting. I never thought about going into SQL to update the policies on >> the thumbnail bundles. I am not sure if there are any other solutions. >> >> George Kozak >> Digital Library Specialist >> Cornell University Library Information Technologies (CUL-IT) >> 501 Olin Library >> Cornell University >> Ithaca, NY 14853 >> 607-255-8924 >> >> -----Original Message----- >> From: Steve Swinsburg [mailto:steve.swinsb...@gmail.com] >> Sent: Wednesday, November 03, 2010 9:39 PM >> To: dspace-tech@lists.sourceforge.net >> Subject: Re: [Dspace-tech] thumbnails restricted if main item is restricted >> >> We've fixed this up with some carefully crafted SQL to update the policies >> to the Anonymous group for the bitstreams in the thumbnail bundles, but it >> would be interesting to know if this is actually how things are meant to >> work, ie inherit the permissions from the parent item when generating the >> thumbnails. >> >> regards, >> Steve >> >> >> On 04/11/2010, at 10:53 AM, Steve Swinsburg wrote: >> >>> Hi, >>> >>> We have a situation where some items in a collection are restricted, ie you >>> need to login to access the full version. However we want the thumbnails >>> and branded previews to still show up for the general public. >>> >>> When we run the thumbnail generator, it seems to inherit the permissions >>> from the main bitstream, which means if the bitstream is protected, the >>> thumbnail doesn't show up unless you are logged in and have the appropriate >>> permission. >>> >>> Is this a common situation? We've inherited this instance so it might be a >>> change made by people before us, but if anyone has addressed this, it would >>> be great to hear from you. >>> >>> thanks, >>> Steve >>> >>> >> >> >> ------------------------------------------------------------------------------ >> The Next 800 Companies to Lead America's Growth: New Video Whitepaper >> David G. Thomson, author of the best-selling book "Blueprint to a >> Billion" shares his insights and actions to help propel your >> business during the next growth cycle. Listen Now! >> http://p.sf.net/sfu/SAP-dev2dev >> _______________________________________________ >> DSpace-tech mailing list >> DSpace-tech@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/dspace-tech > > <ATT00001..txt><ATT00002..txt> ------------------------------------------------------------------------------ The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book "Blueprint to a Billion" shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev _______________________________________________ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
