text: /**
   *
   * Copyright 2018 Paul Schaub.
   *
   * 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.
   */
  package org.jivesoftware.smackx.ox_im;
  
  import org.jivesoftware.smack.packet.Message;
  
  import org.jivesoftware.smackx.ox.OpenPgpContact;
  import org.jivesoftware.smackx.ox.element.OpenPgpElement;
  import org.jivesoftware.smackx.ox.element.SigncryptElement;
  
  import org.pgpainless.decryption_verification.OpenPgpMetadata;
  
  public interface OxMessageListener {
  
      /**
       * This method gets invoked, whenever an OX-IM encrypted message gets received.
       *
       * @see <a href="https://xmpp.org/extensions/xep-0374.html">
       *     XEP-0374: OpenPGP for XMPP: Instant Messaging (OX-IM)</a>
       *@param contact {@link OpenPgpContact} which sent the message.
       * @param originalMessage the received message that is carrying the encrypted {@link OpenPgpElement}.
       * @param decryptedPayload decrypted {@link SigncryptElement} which is carrying the payload.
       * @param metadata metadata about the encryption and signing
       */
      void newIncomingOxMessage(OpenPgpContact contact,
                                Message originalMessage,
                                SigncryptElement decryptedPayload,
                                OpenPgpMetadata metadata);
  }
  