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/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.execution.rmi;
import com.intellij.execution.rmi.ssl.SslSocketFactory;
import org.jetbrains.annotations.Nullable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.spi.InitialContextFactory;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.rmi.Remote;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.ExportException;
import java.rmi.server.UnicastRemoteObject;
import java.security.Security;
import java.util.Hashtable;
import java.util.Random;
public class RemoteServer {
static {
// Radar #5755208: Command line Java applications need a way to launch without a Dock icon.
System.setProperty("apple.awt.UIElement", "true");
}
private static Remote ourRemote;
@SuppressWarnings("UseOfSystemOutOrSystemErr")
protected static void start(Remote remote) throws Exception {
setupRMI();
banJNDI();
setupSSL();
if (ourRemote != null) throw new AssertionError("Already started");
ourRemote = remote;
Registry registry;
int port;
for (Random random = new Random(); ;) {
port = random.nextInt(0xffff);
if (port < 4000) continue;
try {
registry = LocateRegistry.createRegistry(port);
break;
}
catch (ExportException ignored) { }
}
try {
Remote stub = UnicastRemoteObject.exportObject(ourRemote, 0);
final String name = remote.getClass().getSimpleName() + Integer.toHexString(stub.hashCode());
registry.bind(name, stub);
String id = port + "/" + name;
System.out.println("Port/ID: " + id);
long waitTime = 2 * 60 * 1000L;
Object lock = new Object();
//noinspection InfiniteLoopStatement
while (true) {
//noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (lock) {
lock.wait(waitTime);
}
RemoteDeadHand deadHand = (RemoteDeadHand)registry.lookup(RemoteDeadHand.BINDING_NAME);
waitTime = deadHand.ping(id);
}
}
catch (Throwable e) {
e.printStackTrace(System.err);
System.exit(1);
}
}
public static void setupRMI() {
// this properties are necessary for RMI servers to work in some cases:
// if we are behind a firewall, if the network connection is lost, etc.
// do not use domain or http address for server
System.setProperty("java.rmi.server.hostname", "localhost");
// do not use HTTP tunnelling
System.setProperty("java.rmi.server.disableHttp", "true");
}
private static void banJNDI() {
if (System.getProperty(Context.INITIAL_CONTEXT_FACTORY) == null) {
System.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.intellij.execution.rmi.RemoteServer$Jndi");
}
}
public static void setupSSL() {
boolean caCert = System.getProperty(SslSocketFactory.SSL_CA_CERT_PATH) != null;
boolean clientCert = System.getProperty(SslSocketFactory.SSL_CLIENT_CERT_PATH) != null;
boolean clientKey = System.getProperty(SslSocketFactory.SSL_CLIENT_KEY_PATH) != null;
if (caCert || clientCert && clientKey) {
Security.setProperty("ssl.SocketFactory.provider", "com.intellij.execution.rmi.ssl.SslSocketFactory");
}
}
@SuppressWarnings("UnusedDeclaration")
public static class Jndi implements InitialContextFactory, InvocationHandler {
public Context getInitialContext(final Hashtable<?, ?> environment) throws NamingException {
return (Context)Proxy.newProxyInstance(getClass().getClassLoader(), new Class[]{Context.class}, this);
}
@Nullable
public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
if (Object.class.equals(method.getDeclaringClass())) {
return method.invoke(this, args);
}
throw new NamingException("JNDI service is disabled");
}
}
}
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