Ok, maybe to get some feedback 
Implementation hints/discussion or just some opinions
Open items:
- detailed implementation
- configuration possibilities
com.sencha.util.http Server.class
PHP Code:
// new, more glue code skipped
private createProxyConfigObject(String path, String host, int port) {
return new ProxyConfigObject(path, host, port);
}
// existing, to be modified
private Server(Responder responder, int port) {
this(port);
if(responder instanceof Member) {
((Member)responder).join(this._stopper);
}
/* modifcation
- missing parameters (proxyPath, proxyHost, proxyPort) must be configurable
- must be able to use multiple remote configurations (loop needed) */
ProxyConfigObject pco = this.createProxyConfigObject(proxyPath, proxyHost, proxyPort);
this.mount(pco, (Responder)responder);
// original
this.mount("/", (Responder)responder);
}
// new mount for remote ProxyConfigObject
public void mount (ProxyConfigObject pco) {
// http://download.eclipse.org/jetty/stable-8/apidocs/org/eclipse/jetty/servlets/ProxyServlet.Transparent.html#proxyHttpURI(java.lang.String,%20java.lang.String,%20int,%20java.lang.String)
// use ProxyServlet.Transparent
// ...
// more glue code within here
context.addServlet(new ProxyServlet.Transparent(pco.getPath(), pco.getHost, pco.getPort() ), "/" + pco.getPath());
// ...
}
com.sencha.util.http DispatchServlet.class
PHP Code:
/*
remote proxy urls must be excluded from being dispatched, stackoverflow example
http://stackoverflow.com/questions/3125296/can-i-exclude-some-concrete-urls-from-url-pattern-inside-filter-mapping
*/