[Web-SIG] middleware example
terrel at terrelshumway.com
Fri Nov 19 05:07:55 CET 2004
>Or maybe we need to find other middleware examples besides
>authentication and session handling, which are the two things most often
>"pre-decided" with many servers and almost any web programming framework
>in any language (because they're such a pain). Maybe they are special
>cases that need to be considered separately anyway?
This is a special case of authentication and sessions:
I have an app that runs in http://myserver.dom/
I have a shopping cart that needs to collect
payment information through a secure connection
I want the payment page to match the look and feel
of the unsecured site, so I make the templates
available on the secure site. Now: How do I choose
which set of templates to use?
1. The merchant passes a cookie to the secure site
2. The middleware decodes the cookie and adds the
appropriate merchant-specific directory to the
template search path
3. The application code is totally agnostic to
the use of a different set of templates -- all it
knows is that a new variable "whizcart.merchant"
is added to the environment, and it doesn't care
how it got there.
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