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Firebus http gateway adapter

There is a newer version: 1.3.3

package io.firebus.adapters.http;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import io.firebus.Payload;
import io.firebus.utils.DataMap;

public abstract class SecurityHandler {
	protected DataMap config;
	protected List authValidationHandlers;
	
	public SecurityHandler(DataMap c) 
	{
		config = c;
		authValidationHandlers = new ArrayList();
	}
	
	public void addAuthValidationHandler(AuthValidationHandler avh)
	{
		authValidationHandlers.add(avh);
	}
	
	protected void unauthenticated(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String accept = req.getHeader("accept");
		String path = req.getRequestURI();
		if(accept.contains("text/html") || accept.contains("*/*")) {
			if(authValidationHandlers.size() > 1) {
		        PrintWriter writer = resp.getWriter();
		        writer.println("Login");
		        writer.println("Select an identity provider");
		        for(AuthValidationHandler avh: authValidationHandlers) {
			        writer.println("
" + avh.getLabel() + "");
		        }
		        writer.println("");
			} else if(authValidationHandlers.size() == 1) {
				resp.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
				resp.setHeader("Location", authValidationHandlers.get(0).getLoginURL(path));
			} else {
				resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
			}			
		} else {
			resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
		}

	}
	
	public abstract boolean checkHttpRequest(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException;
	
	public abstract void enrichFirebusRequest(HttpServletRequest req, Payload payload) throws ServletException, IOException;
	
	public abstract void enrichAuthResponse(String username, HttpServletResponse resp) throws ServletException, IOException;
}