content: /*
   * 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.
   */
  package org.apache.camel.component.clickup.util;
  
  import java.security.InvalidKeyException;
  import java.security.NoSuchAlgorithmException;
  
  import jakarta.xml.bind.DatatypeConverter;
  
  import javax.crypto.Mac;
  import javax.crypto.spec.SecretKeySpec;
  
  import org.apache.camel.RuntimeCamelException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class Utils {
  
      private static final Logger LOG = LoggerFactory.getLogger(Utils.class);
  
      private static final String HMAC_HASHING_ALGORITHM = "HmacSHA256";
  
      public static String computeMessageHMAC(String message, String key) {
          try {
              Mac mac = Mac.getInstance(HMAC_HASHING_ALGORITHM);
              mac.init(new SecretKeySpec(key.getBytes(), HMAC_HASHING_ALGORITHM));
  
              byte[] hash = mac.doFinal(message.getBytes());
  
              return DatatypeConverter.printHexBinary(hash);
          } catch (NoSuchAlgorithmException e) {
              LOG.debug("This exception should never occur: cannot find the hashing algorithm. {}", HMAC_HASHING_ALGORITHM);
  
              throw new RuntimeCamelException(e);
          } catch (InvalidKeyException e) {
              LOG.debug("This exception should never occur: the provided key is not valid. {}", key);
  
              throw new RuntimeCamelException(e);
          }
      }
  
  }
  