open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/linked/UriAttribute.java

96 lines
2.8 KiB
Java

/*
* Copyright (C) 2017 Schürmann & Breitmoser GbR
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.linked;
import org.bouncycastle.util.Strings;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
import timber.log.Timber;
import java.io.IOException;
import java.net.URI;
import android.content.Context;
import android.support.annotation.DrawableRes;
/** The RawLinkedIdentity contains raw parsed data from a Linked Identity subpacket. */
public class UriAttribute {
public final URI mUri;
protected UriAttribute(URI uri) {
mUri = uri;
}
public byte[] getEncoded() {
return Strings.toUTF8ByteArray(mUri.toASCIIString());
}
public static UriAttribute fromAttributeData(byte[] data) throws IOException {
WrappedUserAttribute att = WrappedUserAttribute.fromData(data);
byte[][] subpackets = att.getSubpackets();
if (subpackets.length >= 1) {
return fromSubpacketData(subpackets[0]);
}
throw new IOException("no subpacket data");
}
static UriAttribute fromSubpacketData(byte[] data) {
try {
String uriStr = Strings.fromUTF8ByteArray(data);
URI uri = URI.create(uriStr);
LinkedResource res = LinkedTokenResource.fromUri(uri);
if (res == null) {
return new UriAttribute(uri);
}
return new LinkedAttribute(uri, res);
} catch (IllegalArgumentException e) {
Timber.e("error parsing uri in (suspected) linked id packet");
return null;
}
}
public static UriAttribute fromResource (LinkedTokenResource res) {
return new UriAttribute(res.toUri());
}
public WrappedUserAttribute toUserAttribute () {
return WrappedUserAttribute.fromSubpacket(WrappedUserAttribute.UAT_URI_ATTRIBUTE, getEncoded());
}
public @DrawableRes int getDisplayIcon() {
return R.drawable.ic_warning_grey_24dp;
}
public String getDisplayTitle(Context context) {
return "Unknown Identity";
}
public String getDisplayComment(Context context) {
return null;
}
}