open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java
2018-07-02 14:50:11 +02:00

106 lines
3.2 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.provider;
import org.sufficientlysecure.keychain.model.SubKey.UnifiedKeyInfo;
import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing.VerificationStatus;
import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.provider.KeyRepository.NotFoundException;
/** This implementation of KeyRing provides a cached view of PublicKeyRing
* objects based on database queries exclusively.
*
* This class should be used where only few points of data but no actual
* cryptographic operations are required about a PublicKeyRing which is already
* in the database. This happens commonly in UI code, where parsing of a PGP
* key for examination would be a very expensive operation.
*
* Each getter method is implemented using a more or less expensive database
* query, while object construction is (almost) free. A common pattern is
* mProviderHelper.getCachedKeyRing(uri).getterMethod()
*
* TODO Ensure that the values returned here always match the ones returned by
* the parsed KeyRing!
*
*/
public class CachedPublicKeyRing extends KeyRing {
private UnifiedKeyInfo unifiedKeyInfo;
public CachedPublicKeyRing(UnifiedKeyInfo unifiedKeyInfo) {
this.unifiedKeyInfo = unifiedKeyInfo;
}
@Override
public long getMasterKeyId() {
return unifiedKeyInfo.master_key_id();
}
public byte[] getFingerprint() {
return unifiedKeyInfo.fingerprint();
}
public long getCreationTime() {
return unifiedKeyInfo.creation();
}
@Override
public String getPrimaryUserId() {
return unifiedKeyInfo.user_id();
}
public String getPrimaryUserIdWithFallback() {
return getPrimaryUserId();
}
@Override
public boolean isRevoked() {
return unifiedKeyInfo.is_revoked();
}
@Override
public boolean canCertify() {
return unifiedKeyInfo.can_certify();
}
@Override
public long getEncryptId() {
return unifiedKeyInfo.has_encrypt_key_int();
}
@Override
public boolean hasEncrypt() {
return unifiedKeyInfo.has_encrypt_key();
}
public long getAuthenticationId() {
return unifiedKeyInfo.has_auth_key_int();
}
@Override
public VerificationStatus getVerified() {
return unifiedKeyInfo.verified();
}
public boolean hasAnySecret() {
return unifiedKeyInfo.has_any_secret();
}
}