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/*
* Copyright (c) 2013, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.github.joschi.jersey.jetty10;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Type;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.Principal;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.AsyncContext;
import javax.servlet.AsyncEvent;
import javax.servlet.AsyncListener;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.GenericType;
import javax.ws.rs.core.SecurityContext;
import javax.inject.Inject;
import javax.inject.Provider;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.glassfish.jersey.internal.MapPropertiesDelegate;
import org.glassfish.jersey.internal.inject.AbstractBinder;
import org.glassfish.jersey.internal.inject.ReferencingFactory;
import org.glassfish.jersey.internal.util.ExtendedLogger;
import org.glassfish.jersey.internal.util.collection.Ref;
import org.glassfish.jersey.jetty.internal.LocalizationMessages;
import org.glassfish.jersey.process.internal.RequestScoped;
import org.glassfish.jersey.server.ApplicationHandler;
import org.glassfish.jersey.server.ContainerException;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.ContainerResponse;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.ServerProperties;
import org.glassfish.jersey.server.internal.ContainerUtils;
import org.glassfish.jersey.server.spi.Container;
import org.glassfish.jersey.server.spi.ContainerResponseWriter;
import org.eclipse.jetty.http.HttpStatus;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Response;
import org.eclipse.jetty.server.handler.AbstractHandler;
/**
* Jersey {@code Container} implementation based on Jetty {@link org.eclipse.jetty.server.Handler}.
*
* @author Arul Dhesiaseelan ([email protected])
* @author Libor Kramolis
* @author Marek Potociar
*/
public final class JettyHttpContainer extends AbstractHandler implements Container {
private static final ExtendedLogger LOGGER =
new ExtendedLogger(Logger.getLogger(JettyHttpContainer.class.getName()), Level.FINEST);
private static final Type REQUEST_TYPE = (new GenericType>() {}).getType();
private static final Type RESPONSE_TYPE = (new GenericType>() {}).getType();
private static final int INTERNAL_SERVER_ERROR = javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR.getStatusCode();
/**
* Cached value of configuration property
* {@link org.glassfish.jersey.server.ServerProperties#RESPONSE_SET_STATUS_OVER_SEND_ERROR}.
* If {@code true} method {@link HttpServletResponse#setStatus} is used over {@link HttpServletResponse#sendError}.
*/
private boolean configSetStatusOverSendError;
/**
* Referencing factory for Jetty request.
*/
private static class JettyRequestReferencingFactory extends ReferencingFactory {
@Inject
public JettyRequestReferencingFactory(final Provider> referenceFactory) {
super(referenceFactory);
}
}
/**
* Referencing factory for Jetty response.
*/
private static class JettyResponseReferencingFactory extends ReferencingFactory {
@Inject
public JettyResponseReferencingFactory(final Provider> referenceFactory) {
super(referenceFactory);
}
}
/**
* An internal binder to enable Jetty HTTP container specific types injection.
* This binder allows to inject underlying Jetty HTTP request and response instances.
* Note that since Jetty {@code Request} class is not proxiable as it does not expose an empty constructor,
* the injection of Jetty request instance into singleton JAX-RS and Jersey providers is only supported via
* {@link javax.inject.Provider injection provider}.
*/
private static class JettyBinder extends AbstractBinder {
@Override
protected void configure() {
bindFactory(JettyRequestReferencingFactory.class).to(Request.class)
.proxy(false).in(RequestScoped.class);
bindFactory(ReferencingFactory.referenceFactory()).to(new GenericType>() {})
.in(RequestScoped.class);
bindFactory(JettyResponseReferencingFactory.class).to(Response.class)
.proxy(false).in(RequestScoped.class);
bindFactory(ReferencingFactory.referenceFactory()).to(new GenericType>() {})
.in(RequestScoped.class);
}
}
private volatile ApplicationHandler appHandler;
@Override
public void handle(final String target, final Request request, final HttpServletRequest httpServletRequest,
final HttpServletResponse httpServletResponse) throws IOException, ServletException {
if (request.isHandled()) {
return;
}
final Response response = request.getResponse();
final ResponseWriter responseWriter = new ResponseWriter(request, response, configSetStatusOverSendError);
final URI baseUri = getBaseUri(request);
final URI requestUri = getRequestUri(request, baseUri);
try {
final ContainerRequest requestContext = new ContainerRequest(
baseUri,
requestUri,
request.getMethod(),
getSecurityContext(request),
new MapPropertiesDelegate(),
appHandler.getConfiguration());
requestContext.setEntityStream(request.getInputStream());
final Enumeration headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
final String headerName = headerNames.nextElement();
String headerValue = request.getHeader(headerName);
requestContext.headers(headerName, headerValue == null ? "" : headerValue);
}
requestContext.setWriter(responseWriter);
requestContext.setRequestScopedInitializer(injectionManager -> {
injectionManager.>getInstance(REQUEST_TYPE).set(request);
injectionManager.>getInstance(RESPONSE_TYPE).set(response);
});
// Mark the request as handled before generating the body of the response
request.setHandled(true);
appHandler.handle(requestContext);
} catch (final Exception ex) {
throw new RuntimeException(ex);
}
}
private URI getRequestUri(final Request request, final URI baseUri) {
try {
final String serverAddress = getServerAddress(baseUri);
String uri = request.getRequestURI();
final String queryString = request.getQueryString();
if (queryString != null) {
uri = uri + "?" + ContainerUtils.encodeUnsafeCharacters(queryString);
}
return new URI(serverAddress + uri);
} catch (URISyntaxException ex) {
throw new IllegalArgumentException(ex);
}
}
private String getServerAddress(URI baseUri) {
String serverAddress = baseUri.toString();
if (serverAddress.charAt(serverAddress.length() - 1) == '/') {
return serverAddress.substring(0, serverAddress.length() - 1);
}
return serverAddress;
}
private SecurityContext getSecurityContext(final Request request) {
return new SecurityContext() {
@Override
public boolean isUserInRole(final String role) {
return request.isUserInRole(role);
}
@Override
public boolean isSecure() {
return request.isSecure();
}
@Override
public Principal getUserPrincipal() {
return request.getUserPrincipal();
}
@Override
public String getAuthenticationScheme() {
return request.getAuthType();
}
};
}
private URI getBaseUri(final Request request) {
try {
return new URI(request.getScheme(), null, request.getServerName(),
request.getServerPort(), getBasePath(request), null, null);
} catch (final URISyntaxException ex) {
throw new IllegalArgumentException(ex);
}
}
private String getBasePath(final Request request) {
final String contextPath = request.getContextPath();
if (contextPath == null || contextPath.isEmpty()) {
return "/";
} else if (contextPath.charAt(contextPath.length() - 1) != '/') {
return contextPath + "/";
} else {
return contextPath;
}
}
private static final class ResponseWriter implements ContainerResponseWriter {
private final Response response;
private final AsyncContext asyncContext;
private final boolean configSetStatusOverSendError;
ResponseWriter(final Request request, final Response response, final boolean configSetStatusOverSendError) {
this.response = response;
this.asyncContext = request.startAsync();
this.configSetStatusOverSendError = configSetStatusOverSendError;
}
@Override
public OutputStream writeResponseStatusAndHeaders(final long contentLength, final ContainerResponse context)
throws ContainerException {
final javax.ws.rs.core.Response.StatusType statusInfo = context.getStatusInfo();
final int code = statusInfo.getStatusCode();
final String reason = statusInfo.getReasonPhrase() == null
? HttpStatus.getMessage(code) : statusInfo.getReasonPhrase();
response.setStatusWithReason(code, reason);
if (contentLength != -1 && contentLength < Integer.MAX_VALUE) {
response.setContentLength((int) contentLength);
}
for (final Map.Entry> e : context.getStringHeaders().entrySet()) {
for (final String value : e.getValue()) {
response.addHeader(e.getKey(), value);
}
}
try {
return response.getOutputStream();
} catch (final IOException ioe) {
throw new ContainerException("Error during writing out the response headers.", ioe);
}
}
@Override
public boolean suspend(final long timeOut, final TimeUnit timeUnit, final TimeoutHandler timeoutHandler) {
try {
if (timeOut > 0) {
final long timeoutMillis = TimeUnit.MILLISECONDS.convert(timeOut, timeUnit);
asyncContext.setTimeout(timeoutMillis);
}
asyncContext.addListener(new AsyncListener() {
@Override
public void onComplete(AsyncEvent event) throws IOException {
}
@Override
public void onTimeout(AsyncEvent event) throws IOException {
if (timeoutHandler != null) {
timeoutHandler.onTimeout(ResponseWriter.this);
}
}
@Override
public void onError(AsyncEvent event) throws IOException {
}
@Override
public void onStartAsync(AsyncEvent event) throws IOException {
}
});
// asyncContext.suspend(response);
return true;
} catch (final Exception ex) {
return false;
}
}
@Override
public void setSuspendTimeout(final long timeOut, final TimeUnit timeUnit) throws IllegalStateException {
if (timeOut > 0) {
final long timeoutMillis = TimeUnit.MILLISECONDS.convert(timeOut, timeUnit);
asyncContext.setTimeout(timeoutMillis);
}
}
@Override
public void commit() {
try {
response.closeOutput();
} catch (final IOException e) {
LOGGER.log(Level.WARNING, LocalizationMessages.UNABLE_TO_CLOSE_RESPONSE(), e);
} finally {
asyncContext.complete();
LOGGER.log(Level.FINEST, "commit() called");
}
}
@Override
public void failure(final Throwable error) {
try {
if (!response.isCommitted()) {
try {
if (configSetStatusOverSendError) {
response.reset();
//noinspection deprecation
response.setStatus(INTERNAL_SERVER_ERROR, "Request failed.");
} else {
response.sendError(INTERNAL_SERVER_ERROR, "Request failed.");
}
} catch (final IllegalStateException ex) {
// a race condition externally committing the response can still occur...
LOGGER.log(Level.FINER, "Unable to reset failed response.", ex);
} catch (final IOException ex) {
throw new ContainerException(LocalizationMessages.EXCEPTION_SENDING_ERROR_RESPONSE(INTERNAL_SERVER_ERROR,
"Request failed."), ex);
}
}
} finally {
LOGGER.log(Level.FINEST, "failure(...) called");
commit();
rethrow(error);
}
}
@Override
public boolean enableResponseBuffering() {
return false;
}
/**
* Rethrow the original exception as required by JAX-RS, 3.3.4.
*
* @param error throwable to be re-thrown
*/
private void rethrow(final Throwable error) {
if (error instanceof RuntimeException) {
throw (RuntimeException) error;
} else {
throw new ContainerException(error);
}
}
}
@Override
public ResourceConfig getConfiguration() {
return appHandler.getConfiguration();
}
@Override
public void reload() {
reload(getConfiguration());
}
@Override
public void reload(final ResourceConfig configuration) {
appHandler.onShutdown(this);
appHandler = new ApplicationHandler(configuration.register(new JettyBinder()));
appHandler.onReload(this);
appHandler.onStartup(this);
cacheConfigSetStatusOverSendError();
}
@Override
public ApplicationHandler getApplicationHandler() {
return appHandler;
}
/**
* Inform this container that the server has been started.
* This method must be implicitly called after the server containing this container is started.
*
* @throws java.lang.Exception if a problem occurred during server startup.
*/
@Override
protected void doStart() throws Exception {
super.doStart();
appHandler.onStartup(this);
}
/**
* Inform this container that the server is being stopped.
* This method must be implicitly called before the server containing this container is stopped.
*
* @throws java.lang.Exception if a problem occurred during server shutdown.
*/
@Override
public void doStop() throws Exception {
super.doStop();
appHandler.onShutdown(this);
appHandler = null;
}
/**
* Create a new Jetty HTTP container.
*
* @param application JAX-RS / Jersey application to be deployed on Jetty HTTP container.
* @param parentContext DI provider specific context with application's registered bindings.
*/
JettyHttpContainer(final Application application, final Object parentContext) {
this.appHandler = new ApplicationHandler(application, new JettyBinder(), parentContext);
}
/**
* Create a new Jetty HTTP container.
*
* @param application JAX-RS / Jersey application to be deployed on Jetty HTTP container.
*/
JettyHttpContainer(final Application application) {
this.appHandler = new ApplicationHandler(application, new JettyBinder());
cacheConfigSetStatusOverSendError();
}
/**
* The method reads and caches value of configuration property
* {@link ServerProperties#RESPONSE_SET_STATUS_OVER_SEND_ERROR} for future purposes.
*/
private void cacheConfigSetStatusOverSendError() {
this.configSetStatusOverSendError = ServerProperties.getValue(getConfiguration().getProperties(),
ServerProperties.RESPONSE_SET_STATUS_OVER_SEND_ERROR, false, Boolean.class);
}
}
