Filter::SSL and filter metadata handling

Hi,

I've been working on a filter to do SSL, inspired by David Davis' try in
Sprocket and IO::Socket::SSL. It seems to be working pretty well (see
attached code; mostly needs more testing and error handling), but I
can't release it because it needs more API than filters currently
provide (see also the 'POE::Filter error reporting' thread)

My current thoughts are to forget about trying to extend POE::Filter but
start over in a new namespace (possibly Data::Transform?) That way
there's no need to worry about mixing up filters with the old and new
apis. And not being in the POE namespace might help convince people that
Filters really are useful outside of POE.

Of course, there is still need for handling this in Wheel::ReadWrite
(and other wheels) too. Not sure whether to subclass those or to add
some extra if blocks.

I'm mostly writing this email to find out what people think of the idea
of doing 'new filters' in a new namespace (and if so, which namespace).
But if you think I'm on crack for how I'm doing things in Filter::SSL,
please let me know that too :)


Martijn