104 lines
4.5 KiB
Java
104 lines
4.5 KiB
Java
/**
|
|
*
|
|
* Copyright 2017 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.omemo.provider;
|
|
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.IDENTITY_KEY;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEYS;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEY_ID;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEY_PUB;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_ID;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_PUB;
|
|
import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_SIG;
|
|
|
|
import java.io.IOException;
|
|
import java.util.HashMap;
|
|
|
|
import org.jivesoftware.smack.packet.XmlEnvironment;
|
|
import org.jivesoftware.smack.provider.ExtensionElementProvider;
|
|
import org.jivesoftware.smack.xml.XmlPullParser;
|
|
import org.jivesoftware.smack.xml.XmlPullParserException;
|
|
|
|
import org.jivesoftware.smackx.omemo.element.OmemoBundleElement_VAxolotl;
|
|
|
|
/**
|
|
* Smack ExtensionProvider that parses OMEMO bundle element into OmemoBundleElement objects.
|
|
*
|
|
* @author Paul Schaub
|
|
*/
|
|
public class OmemoBundleVAxolotlProvider extends ExtensionElementProvider<OmemoBundleElement_VAxolotl> {
|
|
@Override
|
|
public OmemoBundleElement_VAxolotl parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException {
|
|
boolean inPreKeys = false;
|
|
|
|
int signedPreKeyId = -1;
|
|
String signedPreKey = null;
|
|
String signedPreKeySignature = null;
|
|
String identityKey = null;
|
|
HashMap<Integer, String> preKeys = new HashMap<>();
|
|
|
|
outerloop: while (true) {
|
|
XmlPullParser.Event tag = parser.next();
|
|
switch (tag) {
|
|
case START_ELEMENT:
|
|
String name = parser.getName();
|
|
final int attributeCount = parser.getAttributeCount();
|
|
// <signedPreKeyPublic>
|
|
if (name.equals(SIGNED_PRE_KEY_PUB)) {
|
|
for (int i = 0; i < attributeCount; i++) {
|
|
if (parser.getAttributeName(i).equals(SIGNED_PRE_KEY_ID)) {
|
|
int id = Integer.parseInt(parser.getAttributeValue(i));
|
|
signedPreKey = parser.nextText();
|
|
signedPreKeyId = id;
|
|
}
|
|
}
|
|
}
|
|
// <bundleGetSignedPreKeySignature>
|
|
else if (name.equals(SIGNED_PRE_KEY_SIG)) {
|
|
signedPreKeySignature = parser.nextText();
|
|
}
|
|
// <deserializeIdentityKey>
|
|
else if (name.equals(IDENTITY_KEY)) {
|
|
identityKey = parser.nextText();
|
|
}
|
|
// <deserializeECPublicKeys>
|
|
else if (name.equals(PRE_KEYS)) {
|
|
inPreKeys = true;
|
|
}
|
|
// <preKeyPublic preKeyId='424242'>
|
|
else if (inPreKeys && name.equals(PRE_KEY_PUB)) {
|
|
for (int i = 0; i < attributeCount; i++) {
|
|
if (parser.getAttributeName(i).equals(PRE_KEY_ID)) {
|
|
preKeys.put(Integer.parseInt(parser.getAttributeValue(i)),
|
|
parser.nextText());
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case END_ELEMENT:
|
|
if (parser.getDepth() == initialDepth) {
|
|
break outerloop;
|
|
}
|
|
break;
|
|
default:
|
|
// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
|
|
break;
|
|
}
|
|
}
|
|
return new OmemoBundleElement_VAxolotl(signedPreKeyId, signedPreKey, signedPreKeySignature, identityKey, preKeys);
|
|
}
|
|
}
|