/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.tomcat.websocket.server;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import jakarta.websocket.Extension;
import jakarta.websocket.HandshakeResponse;
import jakarta.websocket.server.HandshakeRequest;
import jakarta.websocket.server.ServerEndpointConfig;
@aQute.bnd.annotation.spi.ServiceProvider(value = ServerEndpointConfig.Configurator.class)
public class DefaultServerEndpointConfigurator extends ServerEndpointConfig.Configurator {
@Override
public <T> T getEndpointInstance(Class<T> clazz) throws InstantiationException {
try {
return clazz.getConstructor().newInstance();
} catch (InstantiationException e) {
throw e;
} catch (ReflectiveOperationException e) {
InstantiationException ie = new InstantiationException();
ie.initCause(e);
throw ie;
}
}
@Override
public String getNegotiatedSubprotocol(List<String> supported, List<String> requested) {
for (String request : requested) {
if (supported.contains(request)) {
return request;
}
}
return "";
}
@Override
public List<Extension> getNegotiatedExtensions(List<Extension> installed, List<Extension> requested) {
Set<String> installedNames = new HashSet<>();
for (Extension e : installed) {
installedNames.add(e.getName());
}
List<Extension> result = new ArrayList<>();
for (Extension request : requested) {
if (installedNames.contains(request.getName())) {
result.add(request);
}
}
return result;
}
@Override
public boolean checkOrigin(String originHeaderValue) {
return true;
}
@Override
public void modifyHandshake(ServerEndpointConfig sec, HandshakeRequest request, HandshakeResponse response) {
// NO-OP
}
}