Any language that has an "eval" mechanism makes this really easy. I've used Groovy's GroovyScriptEngine to build something like what you're describing. These sc

Any language that has an "eval" mechanism makes this really easy. I've used Groovy's GroovyScriptEngine to build something like what you're describing. These scripts are provided with a "Binding" that gives the script access to the HttpRequest and HttpResponse.