base.jee.servlet.SettingServlet Maven / Gradle / Ivy

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/**
 * Creative commons Attribution-NonCommercial license.
 *
 * http://creativecommons.org/licenses/by-nc/2.5/au/deed.en_GB
 *
 * NO WARRANTY IS GIVEN OR IMPLIED, USE AT YOUR OWN RISK.
 */
package base.jee.servlet;

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

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

import org.stringtemplate.v4.ST;

import base.KeyValue;
import base.jee.Breadcrumb;
import base.jee.JeeBase;
import base.security.User;

/**
 * Display and allow updating all current system configuration settings.
 */
public class SettingServlet extends BaseServlet {

	private static final long serialVersionUID = 1L;

	public SettingServlet(JeeBase jee) throws IOException {
		super(jee);
	}

	@SuppressWarnings("unchecked")
	public void doGet(String token, User u, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String error = null;

		// Set header value
		if(request.getParameter("name") != null && request.getParameter("value") != null) {
			if(request.getParameter("a") == null || !request.getParameter("a").equals(u.getFormAuthToken())) {
				throw new IllegalArgumentException("Invalid authentication token.");
			}
			jee.getAPI().upsertSetting(u, request.getParameter("name"), request.getParameter("value"));
			response.setHeader("Location", settings.get("base.url", "") + "/settings?s=added");
			response.setStatus(302);
			return;
		}

		// Clear header value
		if(request.getParameter("name") != null && request.getParameter("value") == null) {
			if(request.getParameter("a") == null || !request.getParameter("a").equals(u.getFormAuthToken())) {
				throw new IllegalArgumentException("Invalid authentication token.");
			}
			jee.getAPI().removeSetting(u, request.getParameter("name"));
			response.setHeader("Location", settings.get("base.url", "") + "/settings?s=removed");
			response.setStatus(302);
			return;
		}

		List settings = jee.getAPI().getSettings(u);

		ST page = jee.getPage(u, "settings");
		page.add("settings", settings);
		page.add("error", error);
		page.add("breadcrumbs", new Breadcrumb("Configuration settings", null));
		page.add("auth", u.getFormAuthToken());

		response.getWriter().write(page.render());

	}

}