The Drupal ImageCache module provides a Drupal callback URL that takes a preset name and a local filepath as arguments. It puts the two together and returns a result.

imagecache_server.module does a similar thing for any URL on the web

It provides a callback URL (or an RPC endpoint if you like the jargon) that allows certain clients to request that the ImageCache process be applied to any image with an URL.

User interface modification.
Hides some normal (or additional) for elements from the normal node edit screen, with an 'advanced' toggle button that can reveal them again.
Useful for simplifying the editing process, without actually using rights management.
Works client-side, by just hiding some things with css and javascript. NOT a security feature.

Payment module for paystation.co.nz payment gateway and Drupal ecommerce.

Payment Module : Paystation
Original Author : Dan Morrison
Largely based on the Paypal module by Matt Westgate
Settings : > administer > store > settings > paystation

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DESCRIPTION:

Accept payments using Paystation. Paystation is a transaction gateway
used by New Zealand Banks. http://paystation.co.nz/
This module implements the Three Party Interface API - whereby the

Serve flat HTML files, Working PHP files, or even remote website mirrors in a Drupal context.

Originally designed to just serve a subsection of legacy, malformed HTML pages under a Drupal theme, this module has been extended to enable wrapping a Drupal shell around legacy PHP applications, allowing most of the old functionality to keep working, without much code review needed.

Say you have a set of old pages that just can't, won't, or shouldn't be migrated into Drupal nodes.