This would be passed back as part of the request for further validation. Internally WTP contains a programmable HTTP request and response processor. It receives an HTTP request from a client, such as a web browser, and produces an HTTP response that is returned to the client. Figure 2.1 shows the flow through a typical WTP transaction. Request Editors receive a request and have the freedom to modify the request before passing it along.
Editors receive a response and have the freedom to modify the response before passing it along.
When all the steps are completed, the response is sent to the originating client. A fourth type of element, the Monitor , can be designated to receive a copy of the request and response but cannot otherwise modify the data flow. The Monitor, Editor, Request Editor and Generator modules are collectively referred to as MEGs. Once a user has been validated, a master transcoder is run. This is a collection off transcoders responsible for transcode support services such as secure connection, and client cache control management.