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package org.sufficientlysecure.keychain.operations;
import android.content.Context;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
import org.sufficientlysecure.keychain.operations.results.PgpEditKeyResult;
import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
import org.sufficientlysecure.keychain.pgp.Progressable;
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
import org.sufficientlysecure.keychain.util.ProgressScaler;
import java.util.concurrent.atomic.AtomicBoolean;
/** An operation which promotes a public key ring to a secret one.
*
* This operation can only be applied to public key rings where no secret key
* is available. Doing this "promotes" the public key ring to a secret one
* without secret key material, using a GNU_DUMMY s2k type.
*
*/
public class PromoteKeyOperation extends BaseOperation {
public PromoteKeyOperation(Context context, ProviderHelper providerHelper,
Progressable progressable, AtomicBoolean cancelled) {
super(context, providerHelper, progressable, cancelled);
}
public PromoteKeyResult execute(long masterKeyId) {
OperationLog log = new OperationLog();
log.add(LogType.MSG_PR, 0);
// Perform actual type change
UncachedKeyRing promotedRing;
{
try {
// This operation is only allowed for pure public keys
// TODO delete secret keys if they are stripped, or have been moved to the card?
if (mProviderHelper.getCachedPublicKeyRing(masterKeyId).hasAnySecret()) {
log.add(LogType.MSG_PR_ERROR_ALREADY_SECRET, 2);
return new PromoteKeyResult(PromoteKeyResult.RESULT_ERROR, log, null);
}
log.add(LogType.MSG_PR_FETCHING, 1,
KeyFormattingUtils.convertKeyIdToHex(masterKeyId));
CanonicalizedPublicKeyRing pubRing =
mProviderHelper.getCanonicalizedPublicKeyRing(masterKeyId);
// create divert-to-card secret key from public key
promotedRing = pubRing.createDummySecretRing();
} catch (PgpKeyNotFoundException e) {
log.add(LogType.MSG_PR_ERROR_KEY_NOT_FOUND, 2);
return new PromoteKeyResult(PromoteKeyResult.RESULT_ERROR, log, null);
} catch (NotFoundException e) {
log.add(LogType.MSG_PR_ERROR_KEY_NOT_FOUND, 2);
return new PromoteKeyResult(PromoteKeyResult.RESULT_ERROR, log, null);
}
}
// If the edit operation didn't succeed, exit here
if (promotedRing == null) {
// error is already logged by modification
return new PromoteKeyResult(PromoteKeyResult.RESULT_ERROR, log, null);
}
// Check if the action was cancelled
if (checkCancelled()) {
log.add(LogType.MSG_OPERATION_CANCELLED, 0);
return new PromoteKeyResult(PgpEditKeyResult.RESULT_CANCELLED, log, null);
}
// Cannot cancel from here on out!
setPreventCancel();
// Save the new keyring.
SaveKeyringResult saveResult = mProviderHelper
.saveSecretKeyRing(promotedRing, new ProgressScaler(mProgressable, 60, 95, 100));
log.add(saveResult, 1);
// If the save operation didn't succeed, exit here
if (!saveResult.success()) {
return new PromoteKeyResult(PromoteKeyResult.RESULT_ERROR, log, null);
}
updateProgress(R.string.progress_done, 100, 100);
log.add(LogType.MSG_PR_SUCCESS, 0);
return new PromoteKeyResult(PromoteKeyResult.RESULT_OK, log, promotedRing.getMasterKeyId());
}
}
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