Asterisk web gate is a development tool for Asterisk that lets you program telecom services as ordinary CGI scripts in a Web programming environment. Technically, it is a proxy component for the Asterisk platform. The main functionality of the proxy is to translate telecommunication calls into HTTP requests to external Web services. Telecommunication services are located separately from the PBX, while the information they receive from Asterisk is presented as an HTTP request.
Server-side FileManager is a Java servlet which implements FileManager. You can use this servlet for remote site management: upload/download files, copy/move files, edit files, etc. Its main advantage is that it uses only the HTTP protocol for access to your host, which allows it to work through most firewalls.
you can download any component you need (see .jar files on components pages) There are also links for purchasing if you need