/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed 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.keycloak.adapters.springsecurity.authentication;
import org.apache.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.security.web.util.matcher.RequestMatcher;
import javax.servlet.http.HttpServletRequest;
/**
* {@link RequestMatcher} that determines if a given request is an API request or an
* interactive login request.
*
* @author <a href="mailto:srossillo@smartling.com">Scott Rossillo</a>
* @see RequestMatcher
*/
public class HttpHeaderInspectingApiRequestMatcher implements RequestMatcher {
protected static final String X_REQUESTED_WITH_HEADER = "X-Requested-With";
protected static final String X_REQUESTED_WITH_HEADER_AJAX_VALUE = "XMLHttpRequest";
/**
* Returns true if the given request is an API request or false if it's an interactive
* login request.
*
* @param request the <code>HttpServletRequest</code>
* @return <code>true</code> if the given <code>request</code> is an API request;
* <code>false</code> otherwise
*/
@Override
public boolean matches(HttpServletRequest request) {
boolean ajax = X_REQUESTED_WITH_HEADER_AJAX_VALUE.equals(request.getHeader(X_REQUESTED_WITH_HEADER));
boolean html = request.getHeader(HttpHeaders.ACCEPT) != null && request.getHeader(HttpHeaders.ACCEPT).contains(
MediaType.TEXT_HTML_VALUE);
return ajax || !html;
}
}