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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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.pgp;
import org.spongycastle.openpgp.PGPKeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.util.IterableIterator;
import java.io.IOException;
import java.io.OutputStream;
/** A generic wrapped PGPKeyRing object.
*
* This class provides implementations for all basic getters which both
* PublicKeyRing and SecretKeyRing have in common. To make the wrapped keyring
* class typesafe in implementing subclasses, the field is stored in the
* implementing class, providing properly typed access through the getRing
* getter method.
*
*/
public abstract class CanonicalizedKeyRing extends KeyRing {
private final int mVerified;
CanonicalizedKeyRing(int verified) {
mVerified = verified;
}
public long getMasterKeyId() {
return getRing().getPublicKey().getKeyID();
}
public int getVerified() {
return mVerified;
}
public String getPrimaryUserId() throws PgpGeneralException {
return getPublicKey().getPrimaryUserId();
}
public String getPrimaryUserIdWithFallback() throws PgpGeneralException {
return getPublicKey().getPrimaryUserIdWithFallback();
}
public boolean isRevoked() throws PgpGeneralException {
// Is the master key revoked?
return getRing().getPublicKey().isRevoked();
}
public boolean canCertify() throws PgpGeneralException {
return getRing().getPublicKey().isEncryptionKey();
}
public long getEncryptId() throws PgpGeneralException {
for(CanonicalizedPublicKey key : publicKeyIterator()) {
if(key.canEncrypt()) {
return key.getKeyId();
}
}
throw new PgpGeneralException("No valid encryption key found!");
}
public boolean hasEncrypt() throws PgpGeneralException {
try {
getEncryptId();
return true;
} catch(PgpGeneralException e) {
return false;
}
}
public long getSignId() throws PgpGeneralException {
for(CanonicalizedPublicKey key : publicKeyIterator()) {
if(key.canSign()) {
return key.getKeyId();
}
}
throw new PgpGeneralException("No valid signing key found!");
}
public boolean hasSign() throws PgpGeneralException {
try {
getSignId();
return true;
} catch (PgpGeneralException e) {
return false;
}
}
public void encode(OutputStream stream) throws IOException {
getRing().encode(stream);
}
/** Returns an UncachedKeyRing which wraps the same data as this ring. This method should
* only be used */
public UncachedKeyRing getUncachedKeyRing() {
return new UncachedKeyRing(getRing());
}
abstract PGPKeyRing getRing();
abstract public IterableIterator<CanonicalizedPublicKey> publicKeyIterator();
public CanonicalizedPublicKey getPublicKey() {
return new CanonicalizedPublicKey(this, getRing().getPublicKey());
}
public CanonicalizedPublicKey getPublicKey(long id) {
return new CanonicalizedPublicKey(this, getRing().getPublicKey(id));
}
public byte[] getEncoded() throws IOException {
return getRing().getEncoded();
}
}
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