2018-07-29 18:52:45 +02:00
|
|
|
/**
|
|
|
|
*
|
|
|
|
* Copyright 2017 Florian Schmaus, 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.element;
|
|
|
|
|
|
|
|
import java.io.ByteArrayInputStream;
|
|
|
|
import java.io.InputStream;
|
|
|
|
|
|
|
|
import org.jivesoftware.smack.packet.ExtensionElement;
|
|
|
|
import org.jivesoftware.smack.packet.Stanza;
|
|
|
|
import org.jivesoftware.smack.util.StringUtils;
|
|
|
|
import org.jivesoftware.smack.util.XmlStringBuilder;
|
2019-05-06 22:06:13 +02:00
|
|
|
|
2018-07-29 18:52:45 +02:00
|
|
|
import org.jivesoftware.smackx.ox.util.Util;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Class that represents an OpenPGP message.
|
|
|
|
* The content of this elements text is an base64 encoded , OpenPGP encrypted/signed content element ({@link SignElement},
|
|
|
|
* {@link SigncryptElement}, {@link CryptElement}).
|
|
|
|
*
|
|
|
|
* @see <a href="https://xmpp.org/extensions/xep-0373.html#exchange">
|
|
|
|
* XEP-0373: §3.1 Exchanging OpenPGP Encrypted and Signed Data</a>
|
|
|
|
*/
|
|
|
|
public class OpenPgpElement implements ExtensionElement {
|
|
|
|
|
|
|
|
public static final String ELEMENT = "openpgp";
|
|
|
|
public static final String NAMESPACE = "urn:xmpp:openpgp:0";
|
|
|
|
|
|
|
|
// Represents the OpenPGP message, but encoded using base64.
|
|
|
|
private final String base64EncodedOpenPgpMessage;
|
|
|
|
|
|
|
|
public OpenPgpElement(String base64EncodedOpenPgpMessage) {
|
|
|
|
this.base64EncodedOpenPgpMessage = StringUtils.requireNotNullNorEmpty(base64EncodedOpenPgpMessage,
|
|
|
|
"base64 encoded message MUST NOT be null nor empty.");
|
|
|
|
}
|
|
|
|
|
|
|
|
public InputStream toInputStream() {
|
|
|
|
return new ByteArrayInputStream(base64EncodedOpenPgpMessage.getBytes(Util.UTF8));
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return the OpenPGP encrypted payload.
|
|
|
|
*
|
|
|
|
* @return OpenPGP encrypted payload.
|
|
|
|
*/
|
|
|
|
public String getEncryptedBase64MessageContent() {
|
|
|
|
return base64EncodedOpenPgpMessage;
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public String getElementName() {
|
|
|
|
return ELEMENT;
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
public String getNamespace() {
|
|
|
|
return NAMESPACE;
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
2019-02-04 13:27:41 +01:00
|
|
|
public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
|
2018-07-29 18:52:45 +02:00
|
|
|
XmlStringBuilder xml = new XmlStringBuilder(this);
|
|
|
|
xml.rightAngleBracket().append(base64EncodedOpenPgpMessage).closeElement(this);
|
|
|
|
return xml;
|
|
|
|
}
|
|
|
|
|
|
|
|
public static OpenPgpElement fromStanza(Stanza stanza) {
|
|
|
|
return stanza.getExtension(ELEMENT, NAMESPACE);
|
|
|
|
}
|
|
|
|
}
|