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org.wildfly.httpclient.ejb.HttpEJBReceiver Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 org.wildfly.httpclient.ejb;
import static java.security.AccessController.doPrivileged;
import java.io.DataOutput;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.net.URI;
import java.security.AccessController;
import java.security.GeneralSecurityException;
import java.security.PrivilegedAction;
import java.util.Base64;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicLong;
import java.util.zip.GZIPOutputStream;
import javax.ejb.Asynchronous;
import javax.net.ssl.SSLContext;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.xa.Xid;
import org.jboss.ejb.client.Affinity;
import org.jboss.ejb.client.EJBClientInvocationContext;
import org.jboss.ejb.client.EJBLocator;
import org.jboss.ejb.client.EJBReceiver;
import org.jboss.ejb.client.EJBReceiverInvocationContext;
import org.jboss.ejb.client.EJBReceiverSessionCreationContext;
import org.jboss.ejb.client.SessionID;
import org.jboss.ejb.client.StatefulEJBLocator;
import org.jboss.marshalling.ByteOutput;
import org.jboss.marshalling.InputStreamByteInput;
import org.jboss.marshalling.Marshaller;
import org.jboss.marshalling.Marshalling;
import org.jboss.marshalling.MarshallingConfiguration;
import org.jboss.marshalling.Unmarshaller;
import org.wildfly.httpclient.common.HttpTargetContext;
import org.wildfly.httpclient.common.WildflyHttpContext;
import org.wildfly.httpclient.transaction.XidProvider;
import org.wildfly.security.auth.client.AuthenticationConfiguration;
import org.wildfly.security.auth.client.AuthenticationContext;
import org.wildfly.security.auth.client.AuthenticationContextConfigurationClient;
import org.wildfly.transaction.client.ContextTransactionManager;
import org.wildfly.transaction.client.LocalTransaction;
import org.wildfly.transaction.client.RemoteTransaction;
import org.wildfly.transaction.client.RemoteTransactionContext;
import org.wildfly.transaction.client.XAOutflowHandle;
import org.xnio.IoUtils;
import io.undertow.client.ClientRequest;
import io.undertow.util.AttachmentKey;
import io.undertow.util.Headers;
import io.undertow.util.StatusCodes;
/**
* @author Stuart Douglas
*/
class HttpEJBReceiver extends EJBReceiver {
private static final AuthenticationContextConfigurationClient AUTH_CONTEXT_CLIENT;
static {
AUTH_CONTEXT_CLIENT = AccessController.doPrivileged((PrivilegedAction) () -> new AuthenticationContextConfigurationClient());
}
private final AttachmentKey EJB_CONTEXT_DATA = AttachmentKey.create(EjbContextData.class);
private final org.jboss.ejb.client.AttachmentKey INVOCATION_ID = new org.jboss.ejb.client.AttachmentKey<>();
private final RemoteTransactionContext transactionContext;
private static final AtomicLong invocationIdGenerator = new AtomicLong();
HttpEJBReceiver() {
if(System.getSecurityManager() == null) {
transactionContext = RemoteTransactionContext.getInstance();
} else {
transactionContext = AccessController.doPrivileged(new PrivilegedAction() {
@Override
public RemoteTransactionContext run() {
return RemoteTransactionContext.getInstance();
}
});
}
}
@Override
protected void processInvocation(EJBReceiverInvocationContext receiverContext) throws Exception {
EJBClientInvocationContext clientInvocationContext = receiverContext.getClientInvocationContext();
EJBLocator locator = clientInvocationContext.getLocator();
URI uri = clientInvocationContext.getDestination();
WildflyHttpContext current = WildflyHttpContext.getCurrent();
HttpTargetContext targetContext = current.getTargetContext(uri);
if (targetContext == null) {
throw EjbHttpClientMessages.MESSAGES.couldNotResolveTargetForLocator(locator);
}
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
synchronized (this) {
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
targetContext.putAttachment(EJB_CONTEXT_DATA, new EjbContextData());
}
}
}
targetContext.awaitSessionId(false, AUTH_CONTEXT_CLIENT.getAuthenticationConfiguration(targetContext.getUri(), receiverContext.getAuthenticationContext()));
EjbContextData ejbData = targetContext.getAttachment(EJB_CONTEXT_DATA);
HttpEJBInvocationBuilder builder = new HttpEJBInvocationBuilder()
.setInvocationType(HttpEJBInvocationBuilder.InvocationType.METHOD_INVOCATION)
.setMethod(clientInvocationContext.getInvokedMethod())
.setAppName(locator.getAppName())
.setModuleName(locator.getModuleName())
.setDistinctName(locator.getDistinctName())
.setView(clientInvocationContext.getViewClass().getName())
.setBeanName(locator.getBeanName());
if (locator instanceof StatefulEJBLocator) {
builder.setBeanId(Base64.getUrlEncoder().encodeToString(locator.asStateful().getSessionId().getEncodedForm()));
}
if (clientInvocationContext.getInvokedMethod().getReturnType() == Future.class) {
receiverContext.proceedAsynchronously();
//cancellation is only supported if we have affinity
if (targetContext.getSessionId() != null) {
long invocationId = invocationIdGenerator.incrementAndGet();
String invocationIdString = Long.toString(invocationId);
builder.setInvocationId(invocationIdString);
clientInvocationContext.putAttachment(INVOCATION_ID, invocationIdString);
}
} else if (clientInvocationContext.getInvokedMethod().getReturnType() == void.class) {
if (clientInvocationContext.getInvokedMethod().isAnnotationPresent(Asynchronous.class)) {
receiverContext.proceedAsynchronously();
} else if (ejbData.asyncMethods.contains(clientInvocationContext.getInvokedMethod())) {
receiverContext.proceedAsynchronously();
}
}
boolean compressResponse = receiverContext.getClientInvocationContext().isCompressResponse();
ClientRequest request = builder.createRequest(targetContext.getUri().getPath());
if (compressResponse) {
request.getRequestHeaders().put(Headers.ACCEPT_ENCODING, Headers.GZIP.toString());
}
request.getRequestHeaders().put(Headers.TRANSFER_ENCODING, Headers.CHUNKED.toString());
final boolean compressRequest = receiverContext.getClientInvocationContext().isCompressRequest();
if (compressRequest) {
request.getRequestHeaders().put(Headers.CONTENT_ENCODING, Headers.GZIP.toString());
}
final AuthenticationContext context = receiverContext.getAuthenticationContext();
final AuthenticationContextConfigurationClient client = CLIENT;
final int defaultPort = uri.getScheme().equals("https") ? 443 : 80;
final AuthenticationConfiguration authenticationConfiguration = client.getAuthenticationConfiguration(uri, context, defaultPort, "jndi", "jboss");
final SSLContext sslContext = client.getSSLContext(uri, context, "jndi", "jboss");
targetContext.sendRequest(request, sslContext, authenticationConfiguration, (output -> {
OutputStream data = output;
if (compressRequest) {
data = new GZIPOutputStream(data);
}
try {
marshalEJBRequest(Marshalling.createByteOutput(data), clientInvocationContext, targetContext);
} finally {
IoUtils.safeClose(data);
}
}),
((input, response, closeable) -> {
if (response.getResponseCode() == StatusCodes.ACCEPTED && clientInvocationContext.getInvokedMethod().getReturnType() == void.class) {
ejbData.asyncMethods.add(clientInvocationContext.getInvokedMethod());
}
receiverContext.resultReady(new EJBReceiverInvocationContext.ResultProducer() {
@Override
public Object getResult() throws Exception {
Exception exception = null;
Object returned = null;
try {
final MarshallingConfiguration marshallingConfiguration = createMarshallingConfig(targetContext.getUri());
final Unmarshaller unmarshaller = targetContext.createUnmarshaller(marshallingConfiguration);
unmarshaller.start(new InputStreamByteInput(input));
returned = unmarshaller.readObject();
// read the attachments
final Map attachments = readAttachments(unmarshaller);
// finish unmarshalling
if (unmarshaller.read() != -1) {
exception = EjbHttpClientMessages.MESSAGES.unexpectedDataInResponse();
}
unmarshaller.finish();
// If there are any attachments, add them to the client invocation's context data
if (attachments != null) {
for (Map.Entry entry : attachments.entrySet()) {
if (entry.getValue() != null) {
clientInvocationContext.getContextData().put(entry.getKey(), entry.getValue());
}
}
}
if (response.getResponseCode() >= 400) {
throw (Exception) returned;
}
} catch (Exception e) {
exception = e;
} finally {
IoUtils.safeClose(closeable);
}
if (exception != null) {
throw exception;
} else {
return returned;
}
}
@Override
public void discardResult() {
IoUtils.safeClose(closeable);
}
});
}),
(e) -> receiverContext.requestFailed(e instanceof Exception ? (Exception) e : new RuntimeException(e)), EjbHeaders.EJB_RESPONSE_VERSION_ONE, null);
}
private static final AuthenticationContextConfigurationClient CLIENT = doPrivileged(AuthenticationContextConfigurationClient.ACTION);
protected SessionID createSession(final EJBReceiverSessionCreationContext receiverContext) throws Exception {
final EJBLocator locator = receiverContext.getClientInvocationContext().getLocator();
URI uri = receiverContext.getClientInvocationContext().getDestination();
final AuthenticationContext context = receiverContext.getAuthenticationContext();
final AuthenticationContextConfigurationClient client = CLIENT;
final int defaultPort = uri.getScheme().equals("https") ? 443 : 80;
final AuthenticationConfiguration authenticationConfiguration = client.getAuthenticationConfiguration(uri, context, defaultPort, "jndi", "jboss");
final SSLContext sslContext = client.getSSLContext(uri, context, "jndi", "jboss");
WildflyHttpContext current = WildflyHttpContext.getCurrent();
HttpTargetContext targetContext = current.getTargetContext(uri);
if (targetContext == null) {
throw EjbHttpClientMessages.MESSAGES.couldNotResolveTargetForLocator(locator);
}
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
synchronized (this) {
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
targetContext.putAttachment(EJB_CONTEXT_DATA, new EjbContextData());
}
}
}
targetContext.awaitSessionId(true, authenticationConfiguration);
CompletableFuture result = new CompletableFuture<>();
HttpEJBInvocationBuilder builder = new HttpEJBInvocationBuilder()
.setInvocationType(HttpEJBInvocationBuilder.InvocationType.STATEFUL_CREATE)
.setAppName(locator.getAppName())
.setModuleName(locator.getModuleName())
.setDistinctName(locator.getDistinctName())
.setView(locator.getViewType().getName())
.setBeanName(locator.getBeanName());
ClientRequest request = builder.createRequest(targetContext.getUri().getPath());
targetContext.sendRequest(request, sslContext, authenticationConfiguration, output -> {
MarshallingConfiguration config = createMarshallingConfig(targetContext.getUri());
Marshaller marshaller = targetContext.createMarshaller(config);
marshaller.start(Marshalling.createByteOutput(output));
writeTransaction(ContextTransactionManager.getInstance().getTransaction(), marshaller, targetContext.getUri());
marshaller.finish();
},
((unmarshaller, response, c) -> {
try {
String sessionId = response.getResponseHeaders().getFirst(EjbHeaders.EJB_SESSION_ID);
if (sessionId == null) {
result.completeExceptionally(EjbHttpClientMessages.MESSAGES.noSessionIdInResponse());
} else {
SessionID sessionID = SessionID.createSessionID(Base64.getUrlDecoder().decode(sessionId));
result.complete(sessionID);
}
} finally {
IoUtils.safeClose(c);
}
})
, result::completeExceptionally, EjbHeaders.EJB_RESPONSE_NEW_SESSION, null);
return result.get();
}
@Override
protected boolean cancelInvocation(EJBReceiverInvocationContext receiverContext, boolean cancelIfRunning) {
EJBClientInvocationContext clientInvocationContext = receiverContext.getClientInvocationContext();
EJBLocator locator = clientInvocationContext.getLocator();
Affinity affinity = locator.getAffinity();
URI uri = clientInvocationContext.getDestination();
final AuthenticationContext context = receiverContext.getAuthenticationContext();
final AuthenticationContextConfigurationClient client = CLIENT;
final int defaultPort = uri.getScheme().equals("https") ? 443 : 80;
final AuthenticationConfiguration authenticationConfiguration = client.getAuthenticationConfiguration(uri, context, defaultPort, "jndi", "jboss");
final SSLContext sslContext;
try {
sslContext = client.getSSLContext(uri, context, "jndi", "jboss");
} catch (GeneralSecurityException e) {
// ¯\_(ツ)_/¯
return false;
}
WildflyHttpContext current = WildflyHttpContext.getCurrent();
HttpTargetContext targetContext = current.getTargetContext(uri);
if (targetContext == null) {
throw EjbHttpClientMessages.MESSAGES.couldNotResolveTargetForLocator(locator);
}
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
synchronized (this) {
if (targetContext.getAttachment(EJB_CONTEXT_DATA) == null) {
targetContext.putAttachment(EJB_CONTEXT_DATA, new EjbContextData());
}
}
}
targetContext.awaitSessionId(false, authenticationConfiguration);
HttpEJBInvocationBuilder builder = new HttpEJBInvocationBuilder()
.setInvocationType(HttpEJBInvocationBuilder.InvocationType.CANCEL)
.setAppName(locator.getAppName())
.setModuleName(locator.getModuleName())
.setDistinctName(locator.getDistinctName())
.setCancelIfRunning(cancelIfRunning)
.setInvocationId(receiverContext.getClientInvocationContext().getAttachment(INVOCATION_ID))
.setBeanName(locator.getBeanName());
final CompletableFuture result = new CompletableFuture<>();
targetContext.sendRequest(builder.createRequest(targetContext.getUri().getPath()), sslContext, authenticationConfiguration, null, (stream, response, closeable) -> {
try {
result.complete(true);
IoUtils.safeClose(stream);
} finally {
IoUtils.safeClose(closeable);
}
}, throwable -> result.complete(false), null, null);
try {
return result.get();
} catch (InterruptedException | ExecutionException e) {
return false;
}
}
private MarshallingConfiguration createMarshallingConfig(URI uri) {
final MarshallingConfiguration marshallingConfiguration = new MarshallingConfiguration();
marshallingConfiguration.setObjectResolver(new HttpProtocolV1ObjectResolver(uri));
marshallingConfiguration.setObjectTable(HttpProtocolV1ObjectTable.INSTANCE);
marshallingConfiguration.setVersion(2);
return marshallingConfiguration;
}
private void marshalEJBRequest(ByteOutput byteOutput, EJBClientInvocationContext clientInvocationContext, HttpTargetContext targetContext) throws IOException, RollbackException, SystemException {
MarshallingConfiguration config = createMarshallingConfig(targetContext.getUri());
Marshaller marshaller = targetContext.createMarshaller(config);
marshaller.start(byteOutput);
writeTransaction(clientInvocationContext.getTransaction(), marshaller, targetContext.getUri());
Object[] methodParams = clientInvocationContext.getParameters();
if (methodParams != null && methodParams.length > 0) {
for (final Object methodParam : methodParams) {
marshaller.writeObject(methodParam);
}
}
// write out the context data
final Map contextData = clientInvocationContext.getContextData();
// no private or public data to write out
if (contextData == null) {
marshaller.writeByte(0);
} else {
final int totalAttachments = contextData.size();
PackedInteger.writePackedInteger(marshaller, totalAttachments);
// write out public (application specific) context data
for (Map.Entry invocationContextData : contextData.entrySet()) {
marshaller.writeObject(invocationContextData.getKey());
marshaller.writeObject(invocationContextData.getValue());
}
}
// finish marshalling
marshaller.finish();
}
private XAOutflowHandle writeTransaction(final Transaction transaction, final DataOutput dataOutput, URI uri) throws IOException, RollbackException, SystemException {
if (transaction == null) {
dataOutput.writeByte(0);
return null;
} else if (transaction instanceof RemoteTransaction) {
final RemoteTransaction remoteTransaction = (RemoteTransaction) transaction;
remoteTransaction.setLocation(uri);
final XidProvider ir = remoteTransaction.getProviderInterface(XidProvider.class);
if (ir == null) throw EjbHttpClientMessages.MESSAGES.cannotEnlistTx();
Xid xid = ir.getXid();
dataOutput.writeByte(1);
dataOutput.writeInt(xid.getFormatId());
final byte[] gtid = xid.getGlobalTransactionId();
dataOutput.writeInt(gtid.length);
dataOutput.write(gtid);
final byte[] bq = xid.getBranchQualifier();
dataOutput.writeInt(bq.length);
dataOutput.write(bq);
return null;
} else if (transaction instanceof LocalTransaction) {
final LocalTransaction localTransaction = (LocalTransaction) transaction;
final XAOutflowHandle outflowHandle = transactionContext.outflowTransaction(uri, localTransaction);
final Xid xid = outflowHandle.getXid();
dataOutput.writeByte(2);
dataOutput.writeInt(xid.getFormatId());
final byte[] gtid = xid.getGlobalTransactionId();
dataOutput.writeInt(gtid.length);
dataOutput.write(gtid);
final byte[] bq = xid.getBranchQualifier();
dataOutput.writeInt(bq.length);
dataOutput.write(bq);
dataOutput.writeInt(outflowHandle.getRemainingTime());
return outflowHandle;
} else {
throw EjbHttpClientMessages.MESSAGES.cannotEnlistTx();
}
}
private static Map readAttachments(final ObjectInput input) throws IOException, ClassNotFoundException {
final int numAttachments = PackedInteger.readPackedInteger(input);
if (numAttachments == 0) {
return null;
}
final Map attachments = new HashMap<>(numAttachments);
for (int i = 0; i < numAttachments; i++) {
// read the key
final String key = (String) input.readObject();
// read the attachment value
final Object val = input.readObject();
attachments.put(key, val);
}
return attachments;
}
private static class StaticResultProducer implements EJBReceiverInvocationContext.ResultProducer {
private final Object ret;
public StaticResultProducer(Object ret) {
this.ret = ret;
}
@Override
public Object getResult() throws Exception {
return ret;
}
@Override
public void discardResult() {
}
}
private static class EjbContextData {
final Set asyncMethods = Collections.newSetFromMap(new ConcurrentHashMap<>());
}
}
