Greetings everyone, after a discussion on #clojure a week ago or so with bsteuber and hiredman about sandboxing there was the consent that a lib that would make sandboxing clojure code into a secure environment very cool. So I took the task and decided I give it a try. So after some experimenting, lots of questions to the channel I finally think that there is a version working good enough for release.
Now that the history lesson is over a few words to the inner workings of clj-sandbox. The sadbox works on two levels. * The more scary one is the jvm sandbox, which is, as so may things in java very powerful and very hard to understand. clj-sandbox uses the default restrictions of the JVM which seems pretty tight but you can pass your own security context if you want to customize it. * A little more interesting since easier to customize is the form white-list/blacklist system. When a sandbox is created there is a combination of black and white-lists given that restrict the forms that are allowed within the code run in the sandbox. Implemented are matchers for name-spaces (passes or blocks everything from a specific name-space) and forms (blocks or passes single forms). The black & white logic works the following way: every form in the sandboxed code must pass the white-lists but must not be blocked by the blacklists - so it is possible to white-list an entire name-space and then blacklist single functions you don't want. * You can pass bindings and variables to the sandboxed code by naming them which makes it easy to communicate between the code and your program. I pushed the jar to clojars so if you want to give it a try you can just add: [clj-sandbox "0.1.0-SNAPSHOT"] to your project.jar Some examples are: http://gist.github.com/331001 http://gist.github.com/332673 http://gist.github.com/332679 -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
