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Camunda 7 Keycloak Identity Provider Plugin for Camunda Platform 7 Run
/*
* ====================================================================
* 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
*
* Please note that this class treats parameters differently depending on composition
* of the request: if the request has a content entity explicitly set with
* {@link #setEntity(org.apache.http.HttpEntity)} or it is not an entity enclosing method
* (such as POST or PUT), parameters will be added to the query component of the request URI.
* Otherwise, parameters will be added as a URL encoded {@link UrlEncodedFormEntity entity}.
*
*
* @since 4.3
*/
public class RequestBuilder {
private String method;
private Charset charset;
private ProtocolVersion version;
private URI uri;
private HeaderGroup headerGroup;
private HttpEntity entity;
private List parameters;
private RequestConfig config;
RequestBuilder(final String method) {
super();
this.charset = Consts.UTF_8;
this.method = method;
}
RequestBuilder(final String method, final URI uri) {
super();
this.method = method;
this.uri = uri;
}
RequestBuilder(final String method, final String uri) {
super();
this.method = method;
this.uri = uri != null ? URI.create(uri) : null;
}
RequestBuilder() {
this(null);
}
public static RequestBuilder create(final String method) {
Args.notBlank(method, "HTTP method");
return new RequestBuilder(method);
}
public static RequestBuilder get() {
return new RequestBuilder(HttpGet.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder get(final URI uri) {
return new RequestBuilder(HttpGet.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder get(final String uri) {
return new RequestBuilder(HttpGet.METHOD_NAME, uri);
}
public static RequestBuilder head() {
return new RequestBuilder(HttpHead.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder head(final URI uri) {
return new RequestBuilder(HttpHead.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder head(final String uri) {
return new RequestBuilder(HttpHead.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder patch() {
return new RequestBuilder(HttpPatch.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder patch(final URI uri) {
return new RequestBuilder(HttpPatch.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder patch(final String uri) {
return new RequestBuilder(HttpPatch.METHOD_NAME, uri);
}
public static RequestBuilder post() {
return new RequestBuilder(HttpPost.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder post(final URI uri) {
return new RequestBuilder(HttpPost.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder post(final String uri) {
return new RequestBuilder(HttpPost.METHOD_NAME, uri);
}
public static RequestBuilder put() {
return new RequestBuilder(HttpPut.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder put(final URI uri) {
return new RequestBuilder(HttpPut.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder put(final String uri) {
return new RequestBuilder(HttpPut.METHOD_NAME, uri);
}
public static RequestBuilder delete() {
return new RequestBuilder(HttpDelete.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder delete(final URI uri) {
return new RequestBuilder(HttpDelete.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder delete(final String uri) {
return new RequestBuilder(HttpDelete.METHOD_NAME, uri);
}
public static RequestBuilder trace() {
return new RequestBuilder(HttpTrace.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder trace(final URI uri) {
return new RequestBuilder(HttpTrace.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder trace(final String uri) {
return new RequestBuilder(HttpTrace.METHOD_NAME, uri);
}
public static RequestBuilder options() {
return new RequestBuilder(HttpOptions.METHOD_NAME);
}
/**
* @since 4.4
*/
public static RequestBuilder options(final URI uri) {
return new RequestBuilder(HttpOptions.METHOD_NAME, uri);
}
/**
* @since 4.4
*/
public static RequestBuilder options(final String uri) {
return new RequestBuilder(HttpOptions.METHOD_NAME, uri);
}
public static RequestBuilder copy(final HttpRequest request) {
Args.notNull(request, "HTTP request");
return new RequestBuilder().doCopy(request);
}
private RequestBuilder doCopy(final HttpRequest request) {
if (request == null) {
return this;
}
method = request.getRequestLine().getMethod();
version = request.getRequestLine().getProtocolVersion();
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
headerGroup.clear();
headerGroup.setHeaders(request.getAllHeaders());
parameters = null;
entity = null;
if (request instanceof HttpEntityEnclosingRequest) {
final HttpEntity originalEntity = ((HttpEntityEnclosingRequest) request).getEntity();
final ContentType contentType = ContentType.get(originalEntity);
if (contentType != null &&
contentType.getMimeType().equals(ContentType.APPLICATION_FORM_URLENCODED.getMimeType())) {
try {
charset = contentType.getCharset();
final List formParams = URLEncodedUtils.parse(originalEntity);
if (!formParams.isEmpty()) {
parameters = formParams;
}
} catch (final IOException ignore) {
}
} else {
entity = originalEntity;
}
}
final URI originalUri;
if (request instanceof HttpUriRequest) {
uri = ((HttpUriRequest) request).getURI();
} else {
uri = URI.create(request.getRequestLine().getUri());
}
if (request instanceof Configurable) {
config = ((Configurable) request).getConfig();
} else {
config = null;
}
return this;
}
/**
* @since 4.4
*/
public RequestBuilder setCharset(final Charset charset) {
this.charset = charset;
return this;
}
/**
* @since 4.4
*/
public Charset getCharset() {
return charset;
}
public String getMethod() {
return method;
}
public ProtocolVersion getVersion() {
return version;
}
public RequestBuilder setVersion(final ProtocolVersion version) {
this.version = version;
return this;
}
public URI getUri() {
return uri;
}
public RequestBuilder setUri(final URI uri) {
this.uri = uri;
return this;
}
public RequestBuilder setUri(final String uri) {
this.uri = uri != null ? URI.create(uri) : null;
return this;
}
public Header getFirstHeader(final String name) {
return headerGroup != null ? headerGroup.getFirstHeader(name) : null;
}
public Header getLastHeader(final String name) {
return headerGroup != null ? headerGroup.getLastHeader(name) : null;
}
public Header[] getHeaders(final String name) {
return headerGroup != null ? headerGroup.getHeaders(name) : null;
}
public RequestBuilder addHeader(final Header header) {
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
headerGroup.addHeader(header);
return this;
}
public RequestBuilder addHeader(final String name, final String value) {
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
this.headerGroup.addHeader(new BasicHeader(name, value));
return this;
}
public RequestBuilder removeHeader(final Header header) {
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
headerGroup.removeHeader(header);
return this;
}
public RequestBuilder removeHeaders(final String name) {
if (name == null || headerGroup == null) {
return this;
}
for (final HeaderIterator i = headerGroup.iterator(); i.hasNext(); ) {
final Header header = i.nextHeader();
if (name.equalsIgnoreCase(header.getName())) {
i.remove();
}
}
return this;
}
public RequestBuilder setHeader(final Header header) {
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
this.headerGroup.updateHeader(header);
return this;
}
public RequestBuilder setHeader(final String name, final String value) {
if (headerGroup == null) {
headerGroup = new HeaderGroup();
}
this.headerGroup.updateHeader(new BasicHeader(name, value));
return this;
}
public HttpEntity getEntity() {
return entity;
}
public RequestBuilder setEntity(final HttpEntity entity) {
this.entity = entity;
return this;
}
public List getParameters() {
return parameters != null ? new ArrayList(parameters) :
new ArrayList();
}
public RequestBuilder addParameter(final NameValuePair nvp) {
Args.notNull(nvp, "Name value pair");
if (parameters == null) {
parameters = new LinkedList();
}
parameters.add(nvp);
return this;
}
public RequestBuilder addParameter(final String name, final String value) {
return addParameter(new BasicNameValuePair(name, value));
}
public RequestBuilder addParameters(final NameValuePair... nvps) {
for (final NameValuePair nvp: nvps) {
addParameter(nvp);
}
return this;
}
public RequestConfig getConfig() {
return config;
}
public RequestBuilder setConfig(final RequestConfig config) {
this.config = config;
return this;
}
public HttpUriRequest build() {
final HttpRequestBase result;
URI uriNotNull = this.uri != null ? this.uri : URI.create("/");
HttpEntity entityCopy = this.entity;
if (parameters != null && !parameters.isEmpty()) {
if (entityCopy == null && (HttpPost.METHOD_NAME.equalsIgnoreCase(method)
|| HttpPut.METHOD_NAME.equalsIgnoreCase(method))) {
entityCopy = new UrlEncodedFormEntity(parameters, charset != null ? charset : HTTP.DEF_CONTENT_CHARSET);
} else {
try {
uriNotNull = new URIBuilder(uriNotNull)
.setCharset(this.charset)
.addParameters(parameters)
.build();
} catch (final URISyntaxException ex) {
// should never happen
}
}
}
if (entityCopy == null) {
result = new InternalRequest(method);
} else {
final InternalEntityEclosingRequest request = new InternalEntityEclosingRequest(method);
request.setEntity(entityCopy);
result = request;
}
result.setProtocolVersion(this.version);
result.setURI(uriNotNull);
if (this.headerGroup != null) {
result.setHeaders(this.headerGroup.getAllHeaders());
}
result.setConfig(this.config);
return result;
}
static class InternalRequest extends HttpRequestBase {
private final String method;
InternalRequest(final String method) {
super();
this.method = method;
}
@Override
public String getMethod() {
return this.method;
}
}
static class InternalEntityEclosingRequest extends HttpEntityEnclosingRequestBase {
private final String method;
InternalEntityEclosingRequest(final String method) {
super();
this.method = method;
}
@Override
public String getMethod() {
return this.method;
}
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append("RequestBuilder [method=");
builder.append(method);
builder.append(", charset=");
builder.append(charset);
builder.append(", version=");
builder.append(version);
builder.append(", uri=");
builder.append(uri);
builder.append(", headerGroup=");
builder.append(headerGroup);
builder.append(", entity=");
builder.append(entity);
builder.append(", parameters=");
builder.append(parameters);
builder.append(", config=");
builder.append(config);
builder.append("]");
return builder.toString();
}
}
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