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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
* getPushHandlerFactory() {
return null;
}
@Override
public void consumePromise(final List headers) throws HttpException, IOException {
throw new ProtocolException("Unexpected message promise");
}
@Override
public void consumeHeader(final List requestHeaders, final boolean requestEndStream) throws HttpException, IOException {
throw new ProtocolException("Unexpected message headers");
}
@Override
public void updateInputCapacity() throws IOException {
}
@Override
public void consumeData(final ByteBuffer src, final boolean endStream) throws HttpException, IOException {
throw new ProtocolException("Unexpected message data");
}
@Override
public boolean isOutputReady() {
switch (responseState) {
case IDLE:
return true;
case BODY:
return pushProducer.available() > 0;
default:
return false;
}
}
private void commitInformation(final HttpResponse response) throws IOException, HttpException {
if (responseCommitted.get()) {
throw new H2ConnectionException(H2Error.INTERNAL_ERROR, "Response already committed");
}
final int status = response.getCode();
if (status < HttpStatus.SC_INFORMATIONAL || status >= HttpStatus.SC_SUCCESS) {
throw new HttpException("Invalid intermediate response: " + status);
}
final List responseHeaders = DefaultH2ResponseConverter.INSTANCE.convert(response);
outputChannel.submit(responseHeaders, false);
}
private void commitResponse(
final HttpResponse response,
final EntityDetails responseEntityDetails) throws HttpException, IOException {
if (responseCommitted.compareAndSet(false, true)) {
context.setProtocolVersion(HttpVersion.HTTP_2);
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
httpProcessor.process(response, responseEntityDetails, context);
final List headers = DefaultH2ResponseConverter.INSTANCE.convert(response);
outputChannel.submit(headers, responseEntityDetails == null);
connMetrics.incrementResponseCount();
if (responseEntityDetails == null) {
responseState = MessageState.COMPLETE;
} else {
responseState = MessageState.BODY;
pushProducer.produce(outputChannel);
}
}
}
private void commitPromise(
final HttpRequest promise,
final AsyncPushProducer pushProducer) throws HttpException, IOException {
context.setProtocolVersion(HttpVersion.HTTP_2);
context.setAttribute(HttpCoreContext.HTTP_REQUEST, promise);
httpProcessor.process(promise, null, context);
final List headers = DefaultH2RequestConverter.INSTANCE.convert(promise);
outputChannel.push(headers, pushProducer);
connMetrics.incrementRequestCount();
}
@Override
public void produceOutput() throws HttpException, IOException {
switch (responseState) {
case IDLE:
responseState = MessageState.HEADERS;
pushProducer.produceResponse(new ResponseChannel() {
@Override
public void sendInformation(final HttpResponse response, final HttpContext httpContext) throws HttpException, IOException {
commitInformation(response);
}
@Override
public void sendResponse(
final HttpResponse response, final EntityDetails entityDetails, final HttpContext httpContext) throws HttpException, IOException {
commitResponse(response, entityDetails);
}
@Override
public void pushPromise(
final HttpRequest promise, final AsyncPushProducer pushProducer, final HttpContext httpContext) throws HttpException, IOException {
commitPromise(promise, pushProducer);
}
}, context);
break;
case BODY:
pushProducer.produce(dataChannel);
break;
}
}
@Override
public void handle(final HttpException ex, final boolean endStream) throws HttpException, IOException {
throw ex;
}
@Override
public void failed(final Exception cause) {
try {
if (failed.compareAndSet(false, true)) {
pushProducer.failed(cause);
}
} finally {
releaseResources();
}
}
@Override
public void releaseResources() {
if (done.compareAndSet(false, true)) {
requestState = MessageState.COMPLETE;
responseState = MessageState.COMPLETE;
pushProducer.releaseResources();
}
}
@Override
public String toString() {
return "[" +
"requestState=" + requestState +
", responseState=" + responseState +
']';
}
}