svnserve TLS support?

Hi folks,

I see issue #1144 about integrating SASL into svnserve for authentication.
Has anyone considered also supporting TLS to allow security for the entire
svnserve connection, on par with what is provided currently for https?

Some advantages of having svnserve support TLS upgrading:
  * Works well with SASL, used in imaps, smtps, xmpp, ldap, etc.
  * Provides consistent transport security (vs. using SASL alone)
  * TLS is a draft internet standard that is already widely deployed.
  * Open source TLS libraries available, compatible with Subversion license:
    * GNU TLS <http://www.gnu.org/software/gnutls/> is LGPL'd.
    * OpenSSL <http://www.openssl.org/> is under an Apache-style license.
  * Doesn't require an extra IANA port (vs. using straight SSL)
    * (Since we should, as recommended, use an upgrade-to-TLS mechanism.)

Anyway, just wondering if anyone else has considered this, and/or if anyone
is interested in working on this. =)

Also, as a separate but related issue, it would also be nice to support HTTP
TLS upgrading when using http (RFC 2817); I don't think this is already
supported, but I haven't checked.)

-- 
Wesley J. Landaker <wjl@icecavern.net> <xmpp:wjl@icecavern.net>
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