87 lines
2.8 KiB
Java
87 lines
2.8 KiB
Java
/**
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*
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* Copyright 2017 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.omemo.element;
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import org.jivesoftware.smack.util.StringUtils;
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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 java.io.UnsupportedEncodingException;
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import static org.jivesoftware.smackx.omemo.util.OmemoConstants.OMEMO_NAMESPACE_V_AXOLOTL;
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/**
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* An OMEMO (PreKey)WhisperMessage element.
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*
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* @author Paul Schaub
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*/
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public class OmemoVAxolotlElement extends OmemoElement {
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/**
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* Create a new OmemoMessageElement from a header and a payload.
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*
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* @param header header of the message
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* @param payload payload
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*/
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public OmemoVAxolotlElement(OmemoHeader header, byte[] payload) {
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super(header, payload);
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}
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@Override
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public String getElementName() {
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return ENCRYPTED;
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}
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@Override
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public XmlStringBuilder toXML() {
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XmlStringBuilder sb = new XmlStringBuilder(this).rightAngleBracket();
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sb.element(header);
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if (payload != null) {
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sb.openElement(PAYLOAD).append(Base64.encodeToString(payload)).closeElement(PAYLOAD);
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}
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sb.closeElement(this);
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return sb;
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}
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@Override
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public String getNamespace() {
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return OMEMO_NAMESPACE_V_AXOLOTL;
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}
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@Override
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public String toString() {
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try {
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StringBuilder s = new StringBuilder("Encrypted:\n")
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.append(" header: sid: ").append(getHeader().getSid()).append('\n');
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for (OmemoHeader.Key k : getHeader().getKeys()) {
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s.append(" key: prekey: ").append(k.isPreKey()).append(" rid: ")
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.append(k.getId()).append(' ')
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.append(new String(k.getData(), StringUtils.UTF8)).append('\n');
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}
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s.append(" iv: ").append(new String(getHeader().getIv(), StringUtils.UTF8)).append('\n');
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s.append(" payload: ").append(new String(getPayload(), StringUtils.UTF8));
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return s.toString();
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} catch (UnsupportedEncodingException e) {
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// UTF-8 must be supported on all platforms claiming to be java compatible.
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throw new AssertionError(e);
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}
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}
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}
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