Is anyone up for a discussion on the redesign of safe_mode? I would like to start 
working on this sometime soon, and I have a lot of
ideas, but I know this is going to be something of a large debate.

Some of the  new features I think would benefit php include:

* safe_mode_hide_env_vars - will allow extra protection on removing environmental vars 
from hosted users ( I actually have a patch
for this but  I have been waiting on it to discuss the redesign)

* User configurable policy - safe_mode could have configuration directives to specify 
exactly what checks are desired

* Virtual Chroot - the ability to perform a chroot to a virtual host directory 
structure, so that a hosted user can not access
anything outside of their directory structure.

* Shared Directories - The ability to specify a list of paths that are shared amongst 
all hosted users. This would allow certain
extensions (gd, oracle, etc) the ability to access the needed datafiles without 
failing a safe_mode check.

Any comments, suggestions, other ideas?

-Jason


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