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Code Issues Releases Wiki Activity

Improve OX's PubkeyElement

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there is no reason why we want to store the bytes of the base64
encoded string. Simply store the string itself.

Also add a convenience method to get the decoded bytes of the PubKey.
This commit is contained in:
Florian Schmaus 2019-09-07 23:27:36 +02:00
parent 34f1c2b79e
commit a6a1142255
4 changed files with 40 additions and 29 deletions
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3
smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/OpenPgpManager.java
View file

@ -636,7 +636,8 @@ public final class OpenPgpManager extends Manager {
* @return {@link PubkeyElement} containing the key
*/
private static PubkeyElement createPubkeyElement(byte[] bytes, Date date) {
return new PubkeyElement(new PubkeyElement.PubkeyDataElement(Base64.encode(bytes)), date);
String base64EncodedOpenPgpPubKey = Base64.encodeToString(bytes);
return new PubkeyElement(new PubkeyElement.PubkeyDataElement(base64EncodedOpenPgpPubKey), date);
}
/**

21
smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/element/PubkeyElement.java
View file

@ -16,12 +16,12 @@
*/
package org.jivesoftware.smackx.ox.element;
import java.nio.charset.Charset;
import java.util.Date;
import org.jivesoftware.smack.packet.ExtensionElement;
import org.jivesoftware.smack.util.Objects;
import org.jivesoftware.smack.util.XmlStringBuilder;
import org.jivesoftware.smack.util.stringencoder.Base64;
/**
* Class representing a pubkey element which is used to transport OpenPGP public keys.
@ -88,21 +88,30 @@ public class PubkeyElement implements ExtensionElement {
public static final String ELEMENT = "data";
private final byte[] b64Data;
private final String b64Data;
public PubkeyDataElement(byte[] b64Data) {
public PubkeyDataElement(String b64Data) {
this.b64Data = Objects.requireNonNull(b64Data);
}
/**
* Base64 encoded public key.
*
* @return public key bytes.
* @return the base64 encoded version of the public key.
*/
public byte[] getB64Data() {
public String getB64Data() {
return b64Data;
}
private transient byte[] pubKeyBytesCache;
public byte[] getPubKeyBytes() {
if (pubKeyBytesCache == null) {
pubKeyBytesCache = Base64.decode(b64Data);
}
return pubKeyBytesCache.clone();
}
@Override
public String getElementName() {
return ELEMENT;
@ -117,7 +126,7 @@ public class PubkeyElement implements ExtensionElement {
public XmlStringBuilder toXML(org.jivesoftware.smack.packet.XmlEnvironment enclosingNamespace) {
XmlStringBuilder xml = new XmlStringBuilder(this, enclosingNamespace)
.rightAngleBracket()
.append(new String(b64Data, Charset.forName("UTF-8")))
.append(b64Data)
.closeElement(this);
return xml;
}

11
smack-openpgp/src/main/java/org/jivesoftware/smackx/ox/provider/PubkeyElementProvider.java
View file

@ -17,7 +17,6 @@
package org.jivesoftware.smackx.ox.provider;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.Date;
import org.jivesoftware.smack.packet.XmlEnvironment;
@ -34,7 +33,7 @@ import org.jivesoftware.smackx.ox.element.PubkeyElement;
*/
public class PubkeyElementProvider extends ExtensionElementProvider<PubkeyElement> {
public static final PubkeyElementProvider TEST_INSTANCE = new PubkeyElementProvider();
public static final PubkeyElementProvider INSTANCE = new PubkeyElementProvider();
@Override
public PubkeyElement parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException, SmackTextParseException {
@ -46,11 +45,9 @@ public class PubkeyElementProvider extends ExtensionElementProvider<PubkeyElemen
if (tag == XmlPullParser.Event.START_ELEMENT) {
switch (name) {
case PubkeyElement.PubkeyDataElement.ELEMENT:
String data = parser.nextText();
if (data != null) {
byte[] bytes = data.getBytes(Charset.forName("UTF-8"));
return new PubkeyElement(new PubkeyElement.PubkeyDataElement(bytes), date);
}
String base64EncodedOpenPgpPubKey = parser.nextText();
PubkeyElement.PubkeyDataElement pubkeyDataElement = new PubkeyElement.PubkeyDataElement(base64EncodedOpenPgpPubKey);
return new PubkeyElement(pubkeyDataElement, date);
}
}
}

34
smack-openpgp/src/test/java/org/jivesoftware/smackx/ox/PubkeyElementTest.java
View file

@ -17,44 +17,48 @@
package org.jivesoftware.smackx.ox;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertTrue;
import static org.jivesoftware.smack.test.util.XmlUnitUtils.assertXmlSimilar;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.io.IOException;
import java.text.ParseException;
import java.util.Date;
import org.jivesoftware.smack.parsing.SmackParsingException;
import org.jivesoftware.smack.test.util.SmackTestSuite;
import org.jivesoftware.smack.test.util.TestUtils;
import org.jivesoftware.smack.test.util.SmackTestUtil;
import org.jivesoftware.smack.xml.XmlPullParser;
import org.jivesoftware.smack.xml.XmlPullParserException;
import org.jivesoftware.smackx.ox.element.PubkeyElement;
import org.jivesoftware.smackx.ox.provider.PubkeyElementProvider;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.EnumSource;
import org.jxmpp.util.XmppDateTime;
public class PubkeyElementTest extends SmackTestSuite {
@Test
public void providerTest() throws Exception {
String expected =
@ParameterizedTest
@EnumSource(SmackTestUtil.XmlPullParserKind.class)
public void providerTest(SmackTestUtil.XmlPullParserKind parserKind)
throws ParseException, XmlPullParserException, IOException, SmackParsingException {
String base64EncodedOpenPgpPublicKey = "VGhpcyBpcyBqdXN0IGEgdGVzdA==";
String pubkeyElement =
"<pubkey xmlns='urn:xmpp:openpgp:0' date='2018-01-21T10:46:21.000+00:00'>" +
"<data>" +
"BASE64_OPENPGP_PUBLIC_KEY" +
base64EncodedOpenPgpPublicKey +
"</data>" +
"</pubkey>";
Date date = XmppDateTime.parseXEP0082Date("2018-01-21T10:46:21.000+00:00");
byte[] key = "BASE64_OPENPGP_PUBLIC_KEY".getBytes(Charset.forName("UTF-8"));
PubkeyElement element = new PubkeyElement(new PubkeyElement.PubkeyDataElement(key), date);
PubkeyElement element = new PubkeyElement(new PubkeyElement.PubkeyDataElement(base64EncodedOpenPgpPublicKey), date);
assertXmlSimilar(expected, element.toXML().toString());
assertXmlSimilar(pubkeyElement, element.toXML().toString());
XmlPullParser parser = TestUtils.getParser(expected);
PubkeyElement parsed = PubkeyElementProvider.TEST_INSTANCE.parse(parser);
XmlPullParser parser = SmackTestUtil.getParserFor(pubkeyElement, parserKind);
PubkeyElement parsed = PubkeyElementProvider.INSTANCE.parse(parser);
assertEquals(element.getDate(), parsed.getDate());
assertTrue(Arrays.equals(element.getDataElement().getB64Data(), parsed.getDataElement().getB64Data()));
assertEquals(element.getDataElement().getB64Data(), parsed.getDataElement().getB64Data());
}
}