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.mail;
  
  import java.io.InputStream;
  import java.util.Set;
  
  import jakarta.activation.DataHandler;
  import jakarta.mail.Folder;
  import jakarta.mail.Message;
  import jakarta.mail.MessagingException;
  import jakarta.mail.Store;
  import jakarta.mail.internet.MimeMessage;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.attachment.Attachment;
  import org.apache.camel.attachment.AttachmentMessage;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.mail.Mailbox.MailboxUser;
  import org.apache.camel.component.mail.Mailbox.Protocol;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Test;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.core.AnyOf.anyOf;
  import static org.hamcrest.core.IsEqual.equalTo;
  import static org.hamcrest.core.StringContains.containsString;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  public class NestedMimeMessageConsumeTest extends CamelTestSupport {
      private static final MailboxUser james3 = Mailbox.getOrCreateUser("james3", "secret");
      private static final MailboxUser james4 = Mailbox.getOrCreateUser("james4", "secret");
  
      @Test
      public void testNestedMultipart() throws Exception {
          Mailbox.clearAll();
  
          MockEndpoint resultEndpoint = getMockEndpoint("mock:result");
          resultEndpoint.expectedMinimumMessageCount(1);
  
          prepareMailbox(james3);
  
          resultEndpoint.assertIsSatisfied();
  
          Exchange exchange = resultEndpoint.getReceivedExchanges().get(0);
          String text = exchange.getIn().getBody(String.class);
          assertThat(text, containsString("Test with bold face, pictures and attachments"));
          assertEquals("text/plain; charset=us-ascii", exchange.getIn().getHeader("Content-Type"));
  
          Set<String> attachmentNames = exchange.getIn(AttachmentMessage.class).getAttachmentNames();
          assertNotNull(attachmentNames, "attachments got lost");
          assertEquals(2, attachmentNames.size());
          for (String s : attachmentNames) {
              Attachment att = exchange.getIn(AttachmentMessage.class).getAttachmentObject(s);
              DataHandler dh = att.getDataHandler();
              Object content = dh.getContent();
              assertNotNull(content, "Content should not be empty");
              assertThat(dh.getName(), anyOf(equalTo("image001.png"), equalTo("test.txt")));
          }
      }
  
      private void prepareMailbox(MailboxUser user) throws MessagingException {
          // connect to mailbox
          JavaMailSender sender = new DefaultJavaMailSender();
          Store store = sender.getSession().getStore("imap");
          store.connect("localhost", Mailbox.getPort(Protocol.imap), user.getLogin(), user.getPassword());
          Folder folder = store.getFolder("INBOX");
          folder.open(Folder.READ_WRITE);
          folder.expunge();
  
          InputStream is = getClass().getResourceAsStream("/nested-multipart.txt");
          Message hurzMsg = new MimeMessage(sender.getSession(), is);
          Message[] messages = new Message[] { hurzMsg };
  
          // insert one signed message
          folder.appendMessages(messages);
          folder.close(true);
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
              public void configure() {
                  from(james3.uriPrefix(Protocol.pop3) + "&initialDelay=100&delay=100").removeHeader("to")
                          .to(james4.uriPrefix(Protocol.smtp));
                  from(james4.uriPrefix(Protocol.pop3) + "&initialDelay=200&delay=100").convertBodyTo(String.class)
                          .to("mock:result");
              }
          };
      }
  }
  