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.http;
  
  import java.nio.charset.StandardCharsets;
  import java.util.Objects;
  
  import org.apache.hc.client5.http.auth.AuthScope;
  import org.apache.hc.client5.http.auth.BearerToken;
  import org.apache.hc.client5.http.auth.Credentials;
  import org.apache.hc.client5.http.auth.CredentialsProvider;
  import org.apache.hc.client5.http.auth.CredentialsStore;
  import org.apache.hc.client5.http.auth.NTCredentials;
  import org.apache.hc.client5.http.auth.UsernamePasswordCredentials;
  import org.apache.hc.client5.http.impl.auth.BasicCredentialsProvider;
  import org.apache.hc.client5.http.utils.Base64;
  
  public final class HttpCredentialsHelper {
  
      private final CredentialsStore credentialsProvider;
  
      HttpCredentialsHelper() {
          this.credentialsProvider = new BasicCredentialsProvider();
      }
  
      public CredentialsProvider getCredentialsProvider(
              String host, Integer port, Credentials credentials) {
          this.credentialsProvider.setCredentials(new AuthScope(
                  host,
                  Objects.requireNonNullElse(port, -1)), credentials);
          return credentialsProvider;
      }
  
      public static String generateBasicAuthHeader(String user, String pass) {
          final String auth = user + ":" + pass;
          final byte[] encodedAuth = Base64.encodeBase64(auth.getBytes(StandardCharsets.UTF_8));
          return "Basic " + new String(encodedAuth);
      }
  
      public static Credentials getCredentials(
              String method, String username, String password, String host, String domain, String token) {
          if ("BEARER".equalsIgnoreCase(method)) {
              return new BearerToken(token);
          }
          if (username != null && password != null) {
              if ("NTLM".equalsIgnoreCase(method)) {
                  return new NTCredentials(username, password.toCharArray(), host, domain);
              } else {
                  return new UsernamePasswordCredentials(username, password.toCharArray());
              }
          }
          return null;
      }
  
  }
  