89 lines
2.7 KiB
Java
89 lines
2.7 KiB
Java
/**
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*
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* Copyright 2017 Florian Schmaus, 2018 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.ox.element;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import org.jivesoftware.smack.packet.ExtensionElement;
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import org.jivesoftware.smack.util.XmlStringBuilder;
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import org.jivesoftware.smack.util.stringencoder.Base64;
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import org.jivesoftware.smackx.ox.OpenPgpManager;
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import org.jivesoftware.smackx.ox.OpenPgpMessage;
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import org.xmlpull.v1.XmlPullParserException;
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public class OpenPgpElement implements ExtensionElement {
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public static final String ELEMENT = "openpgp";
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public static final String NAMESPACE = "urn:xmpp:openpgp:0";
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private final String base64EncodedOpenPgpMessage;
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private OpenPgpMessage openPgpMessage;
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private byte[] openPgpMessageBytes;
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private OpenPgpContentElement openPgpContentElement;
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public OpenPgpElement(String base64EncodedOpenPgpMessage) {
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this.base64EncodedOpenPgpMessage = base64EncodedOpenPgpMessage;
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}
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public OpenPgpMessage getOpenPgpMessage() {
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if (openPgpMessage == null) {
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ensureOpenPgpMessageBytesSet();
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InputStream is = new ByteArrayInputStream(openPgpMessageBytes);
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openPgpMessage = OpenPgpManager.toOpenPgpMessage(is);
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}
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return openPgpMessage;
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}
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public OpenPgpContentElement getContentElement() throws XmlPullParserException, IOException {
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if (openPgpContentElement == null) {
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openPgpContentElement = getOpenPgpMessage().getOpenPgpContentElement();
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}
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return openPgpContentElement;
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}
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@Override
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public String getElementName() {
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return ELEMENT;
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}
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@Override
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public String getNamespace() {
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return NAMESPACE;
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}
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@Override
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public XmlStringBuilder toXML(String enclosingNamespace) {
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XmlStringBuilder xml = new XmlStringBuilder(this);
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xml.rightAngleBracket().append(base64EncodedOpenPgpMessage).closeElement(this);
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return xml;
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}
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private void ensureOpenPgpMessageBytesSet() {
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if (openPgpMessageBytes != null) return;
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openPgpMessageBytes = Base64.decode(base64EncodedOpenPgpMessage);
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}
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}
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