Hi, few years ago we explored that idea, using PPO at the time:
https://bitbucket.org/srfgkmt/s-watchdog The idea, although it worked, with an obvious impact on query tine, it never got beyond a student project. We never had user nor industrial interest on that research. But it you feel it has potential, you're more than welcome to resume that. The source code it's a bit old, but I think it could be adapted without much effort. Hope that helps. Cheers, On Sun, Apr 8, 2018, 18:51 FRANCISCO XAVIER SUMBA TORAL < xavier.sumb...@ucuenca.ec> wrote: > Hi, > > I would like to query from Marmotta based on a triple level selection. > This selection has to be done on access rights, said so, if a user has > access to the data he’s querying, he can see results. In other words, how > can I define a policy so users can query only data that belongs to them? > Any suggestions? > > I have some ideas that might be implemented as a new module but wanted to > know if there might some performance or scalability problems. > > 1. Use named graphs, and a user has access only to his graph. > However, it be hard to maintain if there are many users. > 2. Define a security policy based on patterns. For this case, data > would be into a single graph, the user sends his query, but before showing > results some triples are filtered based on the patterns he has access to. > > Has anyone come up with a similar use case with Apache Marmotta? Or any > other ideas? > > > Regards, > Xavier.
