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package com.vaadin.tests.integration;
import javax.servlet.http.HttpServletRequest;
import org.eclipse.jetty.proxy.ProxyServlet;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import com.vaadin.annotations.PreserveOnRefresh;
import com.vaadin.server.ExternalResource;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServletService;
import com.vaadin.tests.components.AbstractReindeerTestUI;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Link;
import com.vaadin.ui.VerticalLayout;
@PreserveOnRefresh
public class ProxyTest extends AbstractReindeerTestUI {
private Server server;
private final Button startButton = new Button("Start proxy",
new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
startProxy();
stopButton.setEnabled(true);
}
});
private final Button stopButton = new Button("Stop proxy",
new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
stopProxy();
startButton.setEnabled(true);
}
});
private VerticalLayout linkHolder = new VerticalLayout();
@Override
protected void setup(VaadinRequest request) {
stopButton.setDisableOnClick(true);
stopButton.setEnabled(false);
startButton.setDisableOnClick(true);
addDetachListener(event -> {
if (server != null && server.isRunning()) {
try {
server.stop();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
});
addComponent(startButton);
addComponent(stopButton);
addComponent(linkHolder);
}
private void startProxy() {
HttpServletRequest request = VaadinServletService
.getCurrentServletRequest();
// Set up a server
server = new Server();
ServerConnector connector = new ServerConnector(server);
// Uses random available port by default, uncomment this to make local
// testing easier (you can just reload old tab after restarting proxy)
// connector.setPort(8889);
server.setConnectors(new Connector[] { connector });
// Create root context and add the ProxyServlet.Transparent to it
ServletContextHandler contextHandler = new ServletContextHandler();
server.setHandler(contextHandler);
contextHandler.setContextPath("/");
ServletHolder servletHolder = contextHandler
.addServlet(ProxyServlet.Transparent.class, "/*");
// Configure servlet to forward to the root of the original server
servletHolder.setInitParameter("ProxyTo", "http://"
+ request.getLocalAddr() + ":" + request.getLocalPort() + "/");
// Configure servlet to strip beginning of paths
servletHolder.setInitParameter("Prefix", "/proxypath/");
// Start the server
try {
server.start();
} catch (Exception e) {
throw new RuntimeException(e);
}
// Add links to some proxied urls to tests
String linkBase = "http://" + request.getLocalName() + ":"
+ connector.getLocalPort() + "/proxypath/";
linkHolder.removeAllComponents();
linkHolder.addComponent(new Link("Open embed1 in proxy",
new ExternalResource(linkBase + "embed1")));
linkHolder.addComponent(new Link("Open embed1/ in proxy",
new ExternalResource(linkBase + "embed1/")));
linkHolder.addComponent(
new Link("Open Buttons in proxy", new ExternalResource(linkBase
+ "run/com.vaadin.tests.components.button.Buttons")));
}
private void stopProxy() {
linkHolder.removeAllComponents();
try {
server.stop();
} catch (Exception e) {
throw new RuntimeException(e);
}
server.destroy();
server = null;
}
@Override
protected String getTestDescription() {
return "Test UI for starting an embedded Jetty on a different port that proxies requests back to the original server using a different path.";
}
@Override
protected Integer getTicketNumber() {
return Integer.valueOf(6771);
}
}
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