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http://issues.apache.org/jira/browse/MODPYTHON-94?page=comments#action_12360708 
] 

Graham Dumpleton commented on MODPYTHON-94:
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If we are going to do this, can we not truncate the ssl_var_lookup() function 
name?

Ie., use req.ssl_var_lookup() and not req.ssl_var().

Feel that the use of the exact name will make it more obvious to those who have 
used low level APIs of Apache previously as to what the intent is. The use of 
"lookup" also perhaps better suggests it is a read only value than a reference 
of some form that might able to be changed.

> Calling APR optional functions provided by mod_ssl
> --------------------------------------------------
>
>          Key: MODPYTHON-94
>          URL: http://issues.apache.org/jira/browse/MODPYTHON-94
>      Project: mod_python
>         Type: New Feature
>   Components: core
>     Versions: 3.2
>  Environment: Apache 2
>     Reporter: Deron Meranda
>  Attachments: modpython4.tex.patch, requestobject.c.patch
>
> mod_python is not able to invoke APR Optional Functions.  There are
> some cases however where this could be of great benifit.
> For example, consider writing an authentication or authorization handler
> which needs to determine SSL properties (even if to just answer the
> simple question: is the connection SSL encrypted).  The normal way of
> looking in the subprocess_env for SSL_* variables does not work in those
> early handler phases because those variables are not set until the fixup 
> phase.
> The mod_ssl module though does provide both a ssl_is_https() and
> ssl_var_lookup() optional functions which can be used in earlier
> phases.  For example look at how mod_rewrite calls those; using
> the APR_DECLARE_OPTIONAL_FN and APR_RETRIEVE_OPTIONAL_FN
> macros.
> I can see how it might be very hard to support optional functions in
> general because of the C type linkage issue, but perhaps a select few
> could be coded directly into mod_python.

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