package io.undertow;
import java.net.Inet4Address;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import io.undertow.ajp.AjpOpenListener;
import io.undertow.security.api.AuthenticationMode;
import io.undertow.security.api.GSSAPIServerSubjectFactory;
import io.undertow.security.idm.IdentityManager;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpOpenListener;
import org.xnio.BufferAllocator;
import org.xnio.ByteBufferSlicePool;
import org.xnio.ChannelListener;
import org.xnio.ChannelListeners;
import org.xnio.IoUtils;
import org.xnio.Option;
import org.xnio.OptionMap;
import org.xnio.Options;
import org.xnio.Pool;
import org.xnio.StreamConnection;
import org.xnio.Xnio;
import org.xnio.XnioWorker;
import org.xnio.channels.AcceptingChannel;
import org.xnio.channels.SslConnection;
import org.xnio.ssl.XnioSsl;
/**
* Convenience class used to build an Undertow server.
* <p/>
* TODO: This API is still a work in progress
*
* @author Stuart Douglas
*/
public class Undertow {
private final int bufferSize;
private final int buffersPerRegion;
private final int ioThreads;
private final int workerThreads;
private final boolean directBuffers;
private final List<ListenerConfig> listeners = new ArrayList<ListenerConfig>();
private final HttpHandler rootHandler;
private final OptionMap workerOptions;
private final OptionMap socketOptions;
private final OptionMap serverOptions;
private XnioWorker worker;
private List<AcceptingChannel<? extends StreamConnection>> channels;
private Xnio xnio;
private Undertow(Builder builder) {
this.bufferSize = builder.bufferSize;
this.buffersPerRegion = builder.buffersPerRegion;
this.ioThreads = builder.ioThreads;
this.workerThreads = builder.workerThreads;
this.directBuffers = builder.directBuffers;
this.listeners.addAll(builder.listeners);
this.rootHandler = builder.handler;
this.workerOptions = builder.workerOptions.getMap();
this.socketOptions = builder.socketOptions.getMap();
this.serverOptions = builder.serverOptions.getMap();
}
/**
* @return A builder that can be used to create an Undertow server instance
*/
public static Builder builder() {
return new Builder();
}
public synchronized void start() {
xnio = Xnio.getInstance("nio", Undertow.class.getClassLoader());
channels = new ArrayList<AcceptingChannel<? extends StreamConnection>>();
try {
worker = xnio.createWorker(OptionMap.builder()
.set(Options.WORKER_IO_THREADS, ioThreads)
.set(Options.CONNECTION_HIGH_WATER, 1000000)
.set(Options.CONNECTION_LOW_WATER, 1000000)
.set(Options.WORKER_TASK_CORE_THREADS, workerThreads)
.set(Options.WORKER_TASK_MAX_THREADS, workerThreads)
.set(Options.TCP_NODELAY, true)
.set(Options.CORK, true)
.addAll(workerOptions)
.getMap());
OptionMap socketOptions = OptionMap.builder()
.set(Options.WORKER_IO_THREADS, ioThreads)
.set(Options.TCP_NODELAY, true)
.set(Options.REUSE_ADDRESSES, true)
.addAll(this.socketOptions)
.getMap();
Pool<ByteBuffer> buffers = new ByteBufferSlicePool(directBuffers ? BufferAllocator.DIRECT_BYTE_BUFFER_ALLOCATOR : BufferAllocator.BYTE_BUFFER_ALLOCATOR, bufferSize, bufferSize * buffersPerRegion);
for (ListenerConfig listener : listeners) {
if (listener.type == ListenerType.AJP) {
AjpOpenListener openListener = new AjpOpenListener(buffers, serverOptions, bufferSize);
openListener.setRootHandler(rootHandler);
ChannelListener<AcceptingChannel<StreamConnection>> acceptListener = ChannelListeners.openListenerAdapter(openListener);
AcceptingChannel<? extends StreamConnection> server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(listener.host), listener.port), acceptListener, socketOptions);
server.resumeAccepts();
channels.add(server);
} else if (listener.type == ListenerType.HTTP) {
HttpOpenListener openListener = new HttpOpenListener(buffers, OptionMap.builder().set(UndertowOptions.BUFFER_PIPELINED_DATA, true).addAll(serverOptions).getMap(), bufferSize);
openListener.setRootHandler(rootHandler);
ChannelListener<AcceptingChannel<StreamConnection>> acceptListener = ChannelListeners.openListenerAdapter(openListener);
AcceptingChannel<? extends StreamConnection> server = worker.createStreamConnectionServer(new InetSocketAddress(Inet4Address.getByName(listener.host), listener.port), acceptListener, socketOptions);
server.resumeAccepts();
channels.add(server);
} else if (listener.type == ListenerType.HTTPS){
HttpOpenListener openListener = new HttpOpenListener(buffers, OptionMap.builder().set(UndertowOptions.BUFFER_PIPELINED_DATA, true).addAll(serverOptions).getMap(), bufferSize);
openListener.setRootHandler(rootHandler);
ChannelListener<AcceptingChannel<StreamConnection>> acceptListener = ChannelListeners.openListenerAdapter(openListener);
XnioSsl xnioSsl = xnio.getSslProvider(OptionMap.create(Options.USE_DIRECT_BUFFERS, true));
AcceptingChannel < SslConnection > sslServer = xnioSsl.createSslConnectionServer(worker, new InetSocketAddress(Inet4Address.getByName(listener.host), listener.port), (ChannelListener) acceptListener, socketOptions);
sslServer.resumeAccepts();
channels.add(sslServer);
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public synchronized void stop() {
for (AcceptingChannel<? extends StreamConnection> channel : channels) {
IoUtils.safeClose(channel);
}
channels = null;
worker.shutdownNow();
worker = null;
xnio = null;
}
public static enum ListenerType {
HTTP,
HTTPS,
AJP
}
private static class ListenerConfig {
final ListenerType type;
final int port;
final String host;
private ListenerConfig(final ListenerType type, final int port, final String host) {
this.type = type;
this.port = port;
this.host = host;
}
}
public static class LoginConfig {
private final IdentityManager identityManager;
private boolean basic;
private boolean digest;
private boolean kerberos;
private boolean form;
private String realmName;
private String errorPage, loginPage;
private GSSAPIServerSubjectFactory subjectFactory;
private AuthenticationMode authenticationMode = AuthenticationMode.PRO_ACTIVE;
public LoginConfig(final IdentityManager identityManager) {
this.identityManager = identityManager;
}
public LoginConfig basicAuth(final String realmName) {
if (digest) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("basic", "digest");
} else if (form) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("basic", "form");
}
basic = true;
this.realmName = realmName;
return this;
}
public LoginConfig digestAuth(final String realmName) {
if (basic) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("digest", "basic");
} else if (form) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("digest", "form");
}
digest = true;
this.realmName = realmName;
return this;
}
public LoginConfig kerberosAuth(GSSAPIServerSubjectFactory subjectFactory) {
kerberos = true;
this.subjectFactory = subjectFactory;
return this;
}
public LoginConfig formAuth(final String loginPage, final String errorPage) {
if (digest) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("form", "digest");
} else if (basic) {
throw UndertowMessages.MESSAGES.authTypeCannotBeCombined("form", "basic");
}
this.loginPage = loginPage;
this.errorPage = errorPage;
form = true;
return this;
}
public LoginConfig setAuthenticationMode(final AuthenticationMode authenticationMode) {
this.authenticationMode = authenticationMode;
return this;
}
}
public static final class Builder {
private int bufferSize;
private int buffersPerRegion;
private int ioThreads;
private int workerThreads;
private boolean directBuffers;
private final List<ListenerConfig> listeners = new ArrayList<ListenerConfig>();
private HttpHandler handler;
private final OptionMap.Builder workerOptions = OptionMap.builder();
private final OptionMap.Builder socketOptions = OptionMap.builder();
private final OptionMap.Builder serverOptions = OptionMap.builder();
private Builder() {
ioThreads = Runtime.getRuntime().availableProcessors();
workerThreads = ioThreads * 8;
long maxMemory = Runtime.getRuntime().maxMemory();
//smaller than 64mb of ram we use 512b buffers
if (maxMemory < 64 * 1024 * 1024) {
//use 512b buffers
directBuffers = false;
bufferSize = 512;
buffersPerRegion = 10;
} else if (maxMemory < 128 * 1024 * 1024) {
//use 1k buffers
directBuffers = true;
bufferSize = 1024;
buffersPerRegion = 10;
} else {
//use 4k buffers
directBuffers = true;
bufferSize = 1024 * 4;
buffersPerRegion = 20;
}
}
public Undertow build() {
return new Undertow(this);
}
public Builder addListener(int port, String host) {
listeners.add(new ListenerConfig(ListenerType.HTTP, port, host));
return this;
}
public Builder setBufferSize(final int bufferSize) {
this.bufferSize = bufferSize;
return this;
}
public Builder setBuffersPerRegion(final int buffersPerRegion) {
this.buffersPerRegion = buffersPerRegion;
return this;
}
public Builder setIoThreads(final int ioThreads) {
this.ioThreads = ioThreads;
return this;
}
public Builder setWorkerThreads(final int workerThreads) {
this.workerThreads = workerThreads;
return this;
}
public Builder setDirectBuffers(final boolean directBuffers) {
this.directBuffers = directBuffers;
return this;
}
public Builder setHandler(final HttpHandler handler) {
this.handler = handler;
return this;
}
public <T> Builder setServerOption(final Option<T> option, final T value) {
serverOptions.set(option, value);
return this;
}
public <T> Builder setSocketOption(final Option<T> option, final T value) {
socketOptions.set(option, value);
return this;
}
public <T> Builder setWorkerOption(final Option<T> option, final T value) {
workerOptions.set(option, value);
return this;
}
}
}