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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.common.rest.impl.validator;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.MediaType;
import org.apache.commons.codec.binary.Base64;
import org.openecomp.sdc.common.api.Constants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RequestHeadersValidator {
private static Logger log = LoggerFactory.getLogger(RequestHeadersValidator.class.getName());
public static void validateContentType(HttpServletRequest request, MediaType expectedContentType,
Map<String, String> headersMap) throws RestRequestValidationException {
log.debug("validateContentType - expected: " + expectedContentType);
if (request == null || expectedContentType == null) {
throw new RestRequestValidationException("request or media-type are null");
}
String contentType = request.getHeader(Constants.CONTENT_TYPE_HEADER);
if (contentType == null || !contentType.contains(MediaType.APPLICATION_JSON)) {
throw new RestRequestValidationException(
"Content-Type of requset is different then " + expectedContentType);
} else {
headersMap.put(Constants.CONTENT_TYPE_HEADER, contentType);
}
}
public static void validateIdentificationHeaders(HttpServletRequest request, List<String> identificationList,
Map<String, String> headersMap) throws RestRequestValidationException {
log.debug("validateIdentificationHeaders");
for (String requiredHeader : identificationList) {
String headerVal = request.getHeader(requiredHeader);
if (headerVal != null && !headerVal.isEmpty()) {
headersMap.put(requiredHeader, headerVal);
log.debug("found header - " + requiredHeader + ": " + headerVal);
} else {
log.error("missing identification header: " + requiredHeader);
throw new RestRequestValidationException("missing identification header: " + requiredHeader);
}
}
}
public static void validateMd5(byte[] encodedData, HttpServletRequest request, Map<String, String> headersMap)
throws RestRequestValidationException {
// validate parameters
if (encodedData == null || request == null) {
throw new RestRequestValidationException("encoded data or request are not valid");
}
// calculate MD5 on the data
String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(encodedData);
byte[] encodedMd5 = Base64.encodeBase64(md5.getBytes());
// read the Content-MD5 header
String origMd5 = request.getHeader(Constants.MD5_HEADER);
if ((origMd5 == null) || origMd5.isEmpty()) {
throw new RestRequestValidationException("missing Content-MD5 header ");
}
// verify MD5 value
if (!origMd5.equals(new String(encodedMd5))) {
throw new RestRequestValidationException("uploaded file failed MD5 validation");
}
headersMap.put(Constants.MD5_HEADER, origMd5);
}
}
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