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package org.sufficientlysecure.keychain.pgp;
import org.spongycastle.bcpg.ArmoredOutputStream;
import org.spongycastle.openpgp.PGPKeyRing;
import org.spongycastle.openpgp.PGPObjectFactory;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPPublicKeyRing;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.util.IterableIterator;
import org.sufficientlysecure.keychain.util.Log;
import java.io.IOException;
import java.util.Iterator;
public class WrappedPublicKeyRing extends WrappedKeyRing {
private PGPPublicKeyRing mRing;
private final byte[] mPubKey;
public WrappedPublicKeyRing(byte[] blob, boolean hasAnySecret, int verified) {
super(hasAnySecret, verified);
mPubKey = blob;
}
PGPPublicKeyRing getRing() {
if(mRing == null) {
PGPObjectFactory factory = new PGPObjectFactory(mPubKey);
PGPKeyRing keyRing = null;
try {
if ((keyRing = (PGPKeyRing) factory.nextObject()) == null) {
Log.e(Constants.TAG, "No keys given!");
}
} catch (IOException e) {
Log.e(Constants.TAG, "Error while converting to PGPKeyRing!", e);
}
mRing = (PGPPublicKeyRing) keyRing;
}
return mRing;
}
public void encode(ArmoredOutputStream stream) throws IOException {
getRing().encode(stream);
}
public WrappedPublicKey getSubkey() {
return new WrappedPublicKey(this, getRing().getPublicKey());
}
public WrappedPublicKey getSubkey(long id) {
return new WrappedPublicKey(this, getRing().getPublicKey(id));
}
/** Getter that returns the subkey that should be used for signing. */
WrappedPublicKey getEncryptionSubKey() throws PgpGeneralException {
PGPPublicKey key = getRing().getPublicKey(getEncryptId());
if(key != null) {
WrappedPublicKey cKey = new WrappedPublicKey(this, key);
if(!cKey.canEncrypt()) {
throw new PgpGeneralException("key error");
}
return cKey;
}
throw new PgpGeneralException("no encryption key available");
}
public IterableIterator<WrappedPublicKey> publicKeyIterator() {
@SuppressWarnings("unchecked")
final Iterator<PGPPublicKey> it = getRing().getPublicKeys();
return new IterableIterator<WrappedPublicKey>(new Iterator<WrappedPublicKey>() {
@Override
public boolean hasNext() {
return it.hasNext();
}
@Override
public WrappedPublicKey next() {
return new WrappedPublicKey(WrappedPublicKeyRing.this, it.next());
}
@Override
public void remove() {
it.remove();
}
});
}
}
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