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Camunda 7 Keycloak Identity Provider Plugin including all transitive dependencies
/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.hc.core5.http.nio.support;
import java.io.IOException;
import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
import org.apache.hc.core5.http.EntityDetails;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HeaderElements;
import org.apache.hc.core5.http.HttpException;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpRequest;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.message.BasicHttpResponse;
import org.apache.hc.core5.http.nio.AsyncDataConsumer;
import org.apache.hc.core5.http.nio.AsyncEntityProducer;
import org.apache.hc.core5.http.nio.AsyncFilterChain;
import org.apache.hc.core5.http.nio.AsyncFilterHandler;
import org.apache.hc.core5.http.protocol.HttpContext;
/**
* @since 5.0
*/
@Contract(threading = ThreadingBehavior.STATELESS)
public class AsyncServerExpectationFilter implements AsyncFilterHandler {
protected boolean verify(final HttpRequest request, final HttpContext context) throws HttpException {
return true;
}
protected AsyncEntityProducer generateResponseContent(final HttpResponse expectationFailed) throws HttpException {
return null;
}
@Override
public final AsyncDataConsumer handle(
final HttpRequest request,
final EntityDetails entityDetails,
final HttpContext context,
final AsyncFilterChain.ResponseTrigger responseTrigger,
final AsyncFilterChain chain) throws HttpException, IOException {
if (entityDetails != null) {
final Header h = request.getFirstHeader(HttpHeaders.EXPECT);
if (h != null && HeaderElements.CONTINUE.equalsIgnoreCase(h.getValue())) {
final boolean verified = verify(request, context);
if (verified) {
responseTrigger.sendInformation(new BasicHttpResponse(HttpStatus.SC_CONTINUE));
} else {
final HttpResponse expectationFailed = new BasicHttpResponse(HttpStatus.SC_EXPECTATION_FAILED);
final AsyncEntityProducer responseContentProducer = generateResponseContent(expectationFailed);
responseTrigger.submitResponse(expectationFailed, responseContentProducer);
return null;
}
}
}
return chain.proceed(request, entityDetails, context, responseTrigger);
}
}