001/* 002 * Licensed under the Apache License, Version 2.0 (the "License"); 003 * you may not use this file except in compliance with the License. 004 * You may obtain a copy of the License at 005 * 006 * http://www.apache.org/licenses/LICENSE-2.0 007 * 008 * Unless required by applicable law or agreed to in writing, software 009 * distributed under the License is distributed on an "AS IS" BASIS, 010 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 011 * See the License for the specific language governing permissions and 012 * limitations under the License. 013 */ 014package org.gbif.ws.security; 015 016import org.gbif.ws.CommonRuntimeException; 017 018import java.io.IOException; 019import java.util.Base64; 020 021import org.apache.commons.codec.digest.DigestUtils; 022import org.slf4j.Logger; 023import org.slf4j.LoggerFactory; 024import org.springframework.stereotype.Service; 025 026import com.fasterxml.jackson.databind.ObjectMapper; 027 028@Service 029public class Md5EncodeServiceImpl implements Md5EncodeService { 030 031 private static final Logger LOG = LoggerFactory.getLogger(Md5EncodeServiceImpl.class); 032 033 private ObjectMapper mapper; 034 035 // See JacksonJsonObjectMapperProvider#getObjectMapper 036 public Md5EncodeServiceImpl(ObjectMapper mapper) { 037 this.mapper = mapper; 038 } 039 040 /** 041 * Generates the Base64 encoded 128 bit MD5 digest of the entire content string suitable for the 042 * Content-MD5 header value. 043 * See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.15 044 */ 045 @Override 046 public String encode(Object entity) { 047 try { 048 byte[] content = mapper.writeValueAsBytes(entity); 049 050 // TODO: 2019-07-31 char encoding should be ASCII 051 return Base64.getEncoder().encodeToString(DigestUtils.md5(content)); 052 } catch (IOException e) { 053 LOG.error("Failed to serialize http entity [{}]", entity); 054 throw new CommonRuntimeException(e); 055 } 056 } 057}