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https://github.com/vanitasvitae/Smack.git
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4133eb175c
Introducing Smack's own XmlPullParser interface which tries to stay as compatible as possible to XPP3. The interface is used to either wrap StAX's XMLStreamReader if Smack is used on Java SE, and XPP3's XmlPullParser if Smack is used on on Android. Fixes SMACK-591. Also introduce JUnit 5 and non-strict javadoc projects.
106 lines
4.6 KiB
Java
106 lines
4.6 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.provider;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.BUNDLE;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.IDENTITY_KEY;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEYS;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEY_ID;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.PRE_KEY_PUB;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_ID;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_PUB;
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import static org.jivesoftware.smackx.omemo.element.OmemoBundleElement.SIGNED_PRE_KEY_SIG;
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import java.io.IOException;
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import java.util.HashMap;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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import org.jivesoftware.smackx.omemo.element.OmemoBundleElement_VAxolotl;
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/**
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* Smack ExtensionProvider that parses OMEMO bundle element into OmemoBundleElement objects.
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*
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* @author Paul Schaub
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*/
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public class OmemoBundleVAxolotlProvider extends ExtensionElementProvider<OmemoBundleElement_VAxolotl> {
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@Override
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public OmemoBundleElement_VAxolotl parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException {
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boolean stop = false;
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boolean inPreKeys = false;
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int signedPreKeyId = -1;
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String signedPreKey = null;
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String signedPreKeySignature = null;
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String identityKey = null;
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HashMap<Integer, String> preKeys = new HashMap<>();
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while (!stop) {
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XmlPullParser.Event tag = parser.next();
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String name = parser.getName();
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switch (tag) {
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case START_ELEMENT:
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final int attributeCount = parser.getAttributeCount();
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// <signedPreKeyPublic>
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if (name.equals(SIGNED_PRE_KEY_PUB)) {
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for (int i = 0; i < attributeCount; i++) {
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if (parser.getAttributeName(i).equals(SIGNED_PRE_KEY_ID)) {
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int id = Integer.parseInt(parser.getAttributeValue(i));
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signedPreKey = parser.nextText();
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signedPreKeyId = id;
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}
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}
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}
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// <bundleGetSignedPreKeySignature>
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else if (name.equals(SIGNED_PRE_KEY_SIG)) {
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signedPreKeySignature = parser.nextText();
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}
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// <deserializeIdentityKey>
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else if (name.equals(IDENTITY_KEY)) {
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identityKey = parser.nextText();
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}
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// <deserializeECPublicKeys>
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else if (name.equals(PRE_KEYS)) {
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inPreKeys = true;
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}
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// <preKeyPublic preKeyId='424242'>
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else if (inPreKeys && name.equals(PRE_KEY_PUB)) {
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for (int i = 0; i < attributeCount; i++) {
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if (parser.getAttributeName(i).equals(PRE_KEY_ID)) {
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preKeys.put(Integer.parseInt(parser.getAttributeValue(i)),
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parser.nextText());
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}
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}
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}
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break;
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case END_ELEMENT:
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if (name.equals(BUNDLE)) {
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stop = true;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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return new OmemoBundleElement_VAxolotl(signedPreKeyId, signedPreKey, signedPreKeySignature, identityKey, preKeys);
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}
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}
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