/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.domain.http.server;
import static org.jboss.as.domain.http.server.cors.CorsUtil.matchOrigin;
import static org.jboss.as.domain.http.server.logging.HttpServerLogger.ROOT_LOGGER;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.encoding.EncodingHandler;
import io.undertow.util.HeaderMap;
import io.undertow.util.Headers;
import io.undertow.util.HttpString;
import io.undertow.util.Methods;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import org.jboss.as.controller.ControlledProcessState;
import org.jboss.as.controller.ControlledProcessStateService;
import org.jboss.as.controller.ModelController;
import org.jboss.as.domain.http.server.cors.CorsUtil;
/**
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
*/
class DomainApiCheckHandler implements HttpHandler {
static final String PATH = "/management";
static final String GENERIC_CONTENT_REQUEST = PATH + "-upload";
private static final String ADD_CONTENT_REQUEST = PATH + "/add-content";
private final ControlledProcessStateService controlledProcessStateService;
private final HttpHandler domainApiHandler;
private final HttpHandler addContentHandler;
private final HttpHandler genericOperationHandler;
private final Collection<String> allowedOrigins = new ArrayList<String>();
DomainApiCheckHandler(final ModelController modelController, final ControlledProcessStateService controlledProcessStateService, final Collection<String> allowedOrigins) {
this.controlledProcessStateService = controlledProcessStateService;
domainApiHandler = new EncodingHandler.Builder().build(Collections.<String,Object>emptyMap()).wrap(new DomainApiHandler(modelController));
addContentHandler = new DomainApiUploadHandler(modelController);
genericOperationHandler = new EncodingHandler.Builder().build(Collections.<String,Object>emptyMap()).wrap(new DomainApiGenericOperationHandler(modelController));
if (allowedOrigins != null) {
for (String allowedOrigin : allowedOrigins) {
this.allowedOrigins.add(CorsUtil.sanitizeDefaultPort(allowedOrigin));
}
}
}
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
if (!commonChecks(exchange)) {
return;
}
if (Methods.POST.equals(exchange.getRequestMethod())) {
boolean isAddContent = ADD_CONTENT_REQUEST.equals(exchange.getRequestPath());
boolean isGeneric = GENERIC_CONTENT_REQUEST.equals(exchange.getRequestPath());
if (isAddContent) {
addContentHandler.handleRequest(exchange);
return;
} else if (isGeneric) {
genericOperationHandler.handleRequest(exchange);
return;
}
if (!checkPostContentType(exchange)) {
return;
}
}
domainApiHandler.handleRequest(exchange);
}
private boolean checkPostContentType(HttpServerExchange exchange) throws Exception {
HeaderMap headers = exchange.getRequestHeaders();
String contentType = extractContentType(headers.getFirst(Headers.CONTENT_TYPE));
if (!(Common.APPLICATION_JSON.equals(contentType) || Common.APPLICATION_DMR_ENCODED.equals(contentType))) {
// RFC 2616: 14.11 Content-Encoding
// If the content-coding of an entity in a request message is not
// acceptable to the origin server, the server SHOULD respond with a
// status code of 415 (Unsupported Media Type).
ROOT_LOGGER.debug("Request rejected due to unsupported media type - should be one of (application/json,application/dmr-encoded).");
Common.UNSUPPORTED_MEDIA_TYPE.handleRequest(exchange);
return false;
}
return true;
}
private String extractContentType(final String fullContentType) {
if (fullContentType == null) {
return "";
}
int pos = fullContentType.indexOf(';');
return pos < 0 ? fullContentType : fullContentType.substring(0, pos).trim();
}
private boolean commonChecks(HttpServerExchange exchange) throws Exception {
// AS7-2284 If we are starting or stopping, tell caller the service is unavailable and to try again
// later. If "stopping" it's either a reload, in which case trying again will eventually succeed,
// or it's a true process stop eventually the server will have stopped.
@SuppressWarnings("deprecation")
ControlledProcessState.State currentState = controlledProcessStateService.getCurrentState();
if (currentState == ControlledProcessState.State.STARTING
|| currentState == ControlledProcessState.State.STOPPING) {
exchange.getResponseHeaders().add(Headers.RETRY_AFTER, "2"); // 2 secs is just a guesstimate
Common.SERVICE_UNAVAIABLE.handleRequest(exchange);
return false;
}
/*
* Completely disallow OPTIONS - if the browser suspects this is a cross site request just reject it.
*/
final HttpString requestMethod = exchange.getRequestMethod();
if (!Methods.POST.equals(requestMethod) && !Methods.GET.equals(requestMethod)) {
if (Methods.OPTIONS.equals(requestMethod)) {
ROOT_LOGGER.debug("Request rejected due to 'OPTIONS' method which is not supported.");
} else {
ROOT_LOGGER.debug("Request rejected as method not one of (GET,POST).");
}
Common.METHOD_NOT_ALLOWED_HANDLER.handleRequest(exchange);
return false;
}
/*
* Origin check, if it is set the Origin header should match the Host otherwise reject the request.
*
* This check is for cross site scripted GET and POST requests.
*/
final HeaderMap headers = exchange.getRequestHeaders();
if (headers.contains(Headers.ORIGIN)) {
return matchOrigin(exchange, allowedOrigins) != null;
}
return true;
}
}