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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.aaisimulator.utils;
import static org.onap.so.aaisimulator.utils.Constants.BI_DIRECTIONAL_RELATIONSHIP_LIST_URL;
import static org.onap.so.aaisimulator.utils.Constants.RELATIONSHIP_LIST_RELATIONSHIP_URL;
import static org.springframework.http.MediaType.APPLICATION_XML;
import java.net.URI;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.web.util.UriComponentsBuilder;
/**
* @author Waqas Ikram (waqas.ikram@est.tech)
*
*/
public class HttpServiceUtils {
private static final String START_WITH_FORWARD_SLASH = "(^/.*?)";
private static final String ALPHANUMERIC = "((?:v+[a-z0-9]*)/)";
private static final String REGEX = START_WITH_FORWARD_SLASH + ALPHANUMERIC;
private static final Pattern PATTERN = Pattern.compile(REGEX, Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
private HttpServiceUtils() {}
public static URI getBaseUrl(final HttpServletRequest request) {
final StringBuffer url = request.getRequestURL();
final String uri = request.getRequestURI();
return UriComponentsBuilder.fromHttpUrl(url.substring(0, url.indexOf(uri))).path(getBaseUrl(uri)).build()
.toUri();
}
private static String getBaseUrl(final String uri) {
final Matcher matcher = PATTERN.matcher(uri);
if (matcher.find()) {
final StringBuilder builder = new StringBuilder();
for (int index = 0; index < matcher.groupCount() - 1; index++) {
builder.append(matcher.group(index));
}
return builder.toString();
}
return uri;
}
public static URI getBaseUrl(final StringBuffer requestUrl, final String requestUri) {
return UriComponentsBuilder.fromHttpUrl(requestUrl.substring(0, requestUrl.indexOf(requestUri))).build()
.toUri();
}
public static String getBaseServiceInstanceUrl(final HttpServletRequest request, final String relatedLink) {
return UriComponentsBuilder.fromUri(getBaseUrl(request)).path(relatedLink).toUriString();
}
public static HttpHeaders getHeaders(final HttpServletRequest request) {
return getHeaders(request, APPLICATION_XML);
}
public static HttpHeaders getHeaders(final HttpServletRequest request, final MediaType mediaType) {
final HttpHeaders headers = new HttpHeaders();
for (final Enumeration<String> enumeration = request.getHeaderNames(); enumeration.hasMoreElements();) {
final String headerName = enumeration.nextElement();
headers.add(headerName, request.getHeader(headerName));
}
headers.setContentType(mediaType);
headers.setAccept(Arrays.asList(MediaType.APPLICATION_XML));
return headers;
}
public static String getTargetUrl(final String targetBaseUrl, final String relatedLink) {
return UriComponentsBuilder.fromUriString(targetBaseUrl).path(relatedLink)
.path(BI_DIRECTIONAL_RELATIONSHIP_LIST_URL).toUriString();
}
public static String getRelationShipListRelatedLink(final String requestUriString) {
return requestUriString != null ? requestUriString.replaceFirst(RELATIONSHIP_LIST_RELATIONSHIP_URL, "")
: requestUriString;
}
public static String getBiDirectionalRelationShipListRelatedLink(final String requestUriString) {
return requestUriString != null ? requestUriString.replaceFirst(BI_DIRECTIONAL_RELATIONSHIP_LIST_URL, "")
: requestUriString;
}
}
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