eu.unicore.gateway.util.DefaultPageRenderer Maven / Gradle / Ivy

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package eu.unicore.gateway.util;

import java.io.IOException;
import java.io.PrintWriter;
import java.security.cert.X509Certificate;

import eu.unicore.gateway.Gateway;
import eu.unicore.gateway.SiteOrganiser;
import eu.unicore.gateway.SiteOrganiser.SortOrder;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

public class DefaultPageRenderer {
	
	private final Gateway gateway;
	
	public DefaultPageRenderer(Gateway gateway){
		this.gateway = gateway;
	}
	
	/**
	 * show the default Gateway page ("monkey page")
	 */
	public void doGETDefaultGWPage(HttpServletRequest req, HttpServletResponse res) throws IOException {
		SiteOrganiser so = gateway.getSiteOrganiser();  
		PrintWriter out=res.getWriter();
		res.setContentType("text/html");
		X509Certificate[] certs = (X509Certificate[]) req.getAttribute("jakarta.servlet.request.X509Certificate");
		String clientIP=req.getRemoteAddr();
		
		out.println(""+
				"UNICORE Gateway");
		StringBuilder top = new StringBuilder();
		top.append("");
		top.append("
 Gateway 
");
		if (certs != null)
		{
			top.append("You are authenticated as: 
")
			.append(certs[0].getSubjectX500Principal().getName()).append("");
		}
		top.append("Your IP address: ").append(clientIP).append("");
		
		out.println(getContentDiv(top.toString()));
		out.println("
");
		if(!gateway.getProperties().isDetailedWebPageDisabled()){
			SortOrder ordering = SortOrder.NONE;
			if(req.getQueryString()!=null) {
				String sort = req.getParameter("sort");
				if(sort!=null) {
					try {
						ordering = SortOrder.valueOf(sort);
					}catch(Exception ex) {}
				}
			}
			out.println(getContentDiv(so.toHTMLString(ordering)));
		}
		else{
			out.println(getContentDiv("
Detailed site listing disabled.
"));
		}
		out.println("
");

		out.println(getFooter());

		out.println("");
	}

	private String getContentDiv(String content){
		String s=""+
				"  "+content+
				"   ";
		return s;
	}

	private String getFooter(){
		StringBuilder sb=new StringBuilder();
		sb.append(" Version: "+Gateway.RELEASE_VERSION+" Up since: ").append(gateway.upSince());
		if(gateway.getProperties().isDynamicRegistrationEnabled()){
			sb.append("    register a site");
		}
		sb.append("");
		return sb.toString();
	}

}