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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
*
* Concurrent message exchanges executed by this client will get assigned to
* separate connections leased from the connection pool.
*
*
* @since 4.3
*/
@Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL)
public class MinimalHttpClient extends CloseableHttpClient {
private static final Logger LOG = LoggerFactory.getLogger(MinimalHttpClient.class);
private final HttpClientConnectionManager connManager;
private final ConnectionReuseStrategy reuseStrategy;
private final SchemePortResolver schemePortResolver;
private final HttpRequestExecutor requestExecutor;
private final HttpProcessor httpProcessor;
MinimalHttpClient(final HttpClientConnectionManager connManager) {
super();
this.connManager = Args.notNull(connManager, "HTTP connection manager");
this.reuseStrategy = DefaultClientConnectionReuseStrategy.INSTANCE;
this.schemePortResolver = DefaultSchemePortResolver.INSTANCE;
this.requestExecutor = new HttpRequestExecutor(this.reuseStrategy);
this.httpProcessor = new DefaultHttpProcessor(
new RequestContent(),
new RequestTargetHost(),
new RequestClientConnControl(),
new RequestUserAgent(VersionInfo.getSoftwareInfo(
"Apache-HttpClient", "org.apache.hc.client5", getClass())));
}
@Override
protected CloseableHttpResponse doExecute(
final HttpHost target,
final ClassicHttpRequest request,
final HttpContext context) throws IOException {
Args.notNull(target, "Target host");
Args.notNull(request, "HTTP request");
if (request.getScheme() == null) {
request.setScheme(target.getSchemeName());
}
if (request.getAuthority() == null) {
request.setAuthority(new URIAuthority(target));
}
final HttpClientContext clientContext = HttpClientContext.adapt(
context != null ? context : new BasicHttpContext());
RequestConfig config = null;
if (request instanceof Configurable) {
config = ((Configurable) request).getConfig();
}
if (config != null) {
clientContext.setRequestConfig(config);
}
final HttpRoute route = new HttpRoute(RoutingSupport.normalize(target, schemePortResolver));
final String exchangeId = ExecSupport.getNextExchangeId();
clientContext.setExchangeId(exchangeId);
final ExecRuntime execRuntime = new InternalExecRuntime(LOG, connManager, requestExecutor,
request instanceof CancellableDependency ? (CancellableDependency) request : null);
try {
if (!execRuntime.isEndpointAcquired()) {
execRuntime.acquireEndpoint(exchangeId, route, null, clientContext);
}
if (!execRuntime.isEndpointConnected()) {
execRuntime.connectEndpoint(clientContext);
}
clientContext.setAttribute(HttpCoreContext.HTTP_REQUEST, request);
clientContext.setAttribute(HttpClientContext.HTTP_ROUTE, route);
httpProcessor.process(request, request.getEntity(), clientContext);
final ClassicHttpResponse response = execRuntime.execute(exchangeId, request, clientContext);
httpProcessor.process(response, response.getEntity(), clientContext);
if (reuseStrategy.keepAlive(request, response, clientContext)) {
execRuntime.markConnectionReusable(null, TimeValue.NEG_ONE_MILLISECOND);
} else {
execRuntime.markConnectionNonReusable();
}
// check for entity, release connection if possible
final HttpEntity entity = response.getEntity();
if (entity == null || !entity.isStreaming()) {
// connection not needed and (assumed to be) in re-usable state
execRuntime.releaseEndpoint();
return new CloseableHttpResponse(response, null);
}
ResponseEntityProxy.enhance(response, execRuntime);
return new CloseableHttpResponse(response, execRuntime);
} catch (final ConnectionShutdownException ex) {
final InterruptedIOException ioex = new InterruptedIOException("Connection has been shut down");
ioex.initCause(ex);
execRuntime.discardEndpoint();
throw ioex;
} catch (final HttpException httpException) {
execRuntime.discardEndpoint();
throw new ClientProtocolException(httpException);
} catch (final RuntimeException | IOException ex) {
execRuntime.discardEndpoint();
throw ex;
} catch (final Error error) {
connManager.close(CloseMode.IMMEDIATE);
throw error;
}
}
@Override
public void close() throws IOException {
this.connManager.close();
}
@Override
public void close(final CloseMode closeMode) {
this.connManager.close(closeMode);
}
}