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/*
* Copyright (C) 2016 Alex Fong Jie Wen <alexfongg@gmail.com>
*
* 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.operations;
import android.content.Context;
import android.support.annotation.NonNull;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
import org.sufficientlysecure.keychain.operations.results.PgpEditKeyResult;
import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKeyRing;
import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
import org.sufficientlysecure.keychain.pgp.Progressable;
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
import org.sufficientlysecure.keychain.util.ProgressScaler;
public class ChangeUnlockOperation extends BaseOperation<ChangeUnlockParcel> {
public ChangeUnlockOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
super(context, providerHelper, progressable);
}
@NonNull
public OperationResult execute(ChangeUnlockParcel unlockParcel, CryptoInputParcel cryptoInput) {
OperationResult.OperationLog log = new OperationResult.OperationLog();
log.add(OperationResult.LogType.MSG_ED, 0);
if (unlockParcel == null || unlockParcel.mMasterKeyId == null) {
log.add(OperationResult.LogType.MSG_ED_ERROR_NO_PARCEL, 1);
return new EditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
// Perform actual modification
PgpEditKeyResult modifyResult;
{
PgpKeyOperation keyOperations =
new PgpKeyOperation(new ProgressScaler(mProgressable, 0, 70, 100));
try {
log.add(OperationResult.LogType.MSG_ED_FETCHING, 1,
KeyFormattingUtils.convertKeyIdToHex(unlockParcel.mMasterKeyId));
CanonicalizedSecretKeyRing secRing =
mProviderHelper.getCanonicalizedSecretKeyRing(unlockParcel.mMasterKeyId);
modifyResult = keyOperations.modifyKeyRingPassphrase(secRing, cryptoInput, unlockParcel);
if (modifyResult.isPending()) {
// obtain original passphrase from user
log.add(modifyResult, 1);
return new EditKeyResult(log, modifyResult);
}
} catch (ProviderHelper.NotFoundException e) {
log.add(OperationResult.LogType.MSG_ED_ERROR_KEY_NOT_FOUND, 2);
return new EditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
}
log.add(modifyResult, 1);
if (!modifyResult.success()) {
// error is already logged by modification
return new EditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
// Cannot cancel from here on out!
mProgressable.setPreventCancel();
// It's a success, so this must be non-null now
UncachedKeyRing ring = modifyResult.getRing();
SaveKeyringResult saveResult = mProviderHelper
.saveSecretKeyRing(ring, new ProgressScaler(mProgressable, 70, 95, 100));
log.add(saveResult, 1);
// If the save operation didn't succeed, exit here
if (!saveResult.success()) {
return new EditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
updateProgress(R.string.progress_done, 100, 100);
log.add(OperationResult.LogType.MSG_ED_SUCCESS, 0);
return new EditKeyResult(EditKeyResult.RESULT_OK, log, ring.getMasterKeyId());
}
}
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