open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainServiceTask.java
2019-06-27 19:26:56 +02:00

196 lines
9.8 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.service;
import java.util.concurrent.atomic.AtomicBoolean;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Parcelable;
import android.support.v4.os.CancellationSignal;
import org.sufficientlysecure.keychain.KeychainApplication;
import org.sufficientlysecure.keychain.analytics.AnalyticsManager;
import org.sufficientlysecure.keychain.daos.KeyWritableRepository;
import org.sufficientlysecure.keychain.operations.BackupOperation;
import org.sufficientlysecure.keychain.operations.BaseOperation;
import org.sufficientlysecure.keychain.operations.BenchmarkOperation;
import org.sufficientlysecure.keychain.operations.CertifyOperation;
import org.sufficientlysecure.keychain.operations.ChangeUnlockOperation;
import org.sufficientlysecure.keychain.operations.DeleteOperation;
import org.sufficientlysecure.keychain.operations.EditKeyOperation;
import org.sufficientlysecure.keychain.operations.ImportOperation;
import org.sufficientlysecure.keychain.operations.InputDataOperation;
import org.sufficientlysecure.keychain.operations.KeySyncOperation;
import org.sufficientlysecure.keychain.operations.KeySyncParcel;
import org.sufficientlysecure.keychain.operations.KeybaseVerificationOperation;
import org.sufficientlysecure.keychain.operations.PromoteKeyOperation;
import org.sufficientlysecure.keychain.operations.RevokeOperation;
import org.sufficientlysecure.keychain.operations.SignEncryptOperation;
import org.sufficientlysecure.keychain.operations.UploadOperation;
import org.sufficientlysecure.keychain.operations.results.OperationResult;
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
import org.sufficientlysecure.keychain.pgp.Progressable;
import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
public class KeychainServiceTask {
private final AnalyticsManager analyticsManager;
public static KeychainServiceTask create(Activity activity) {
Context context = activity.getApplicationContext();
KeyWritableRepository keyRepository = KeyWritableRepository.create(context);
AnalyticsManager analyticsManager = ((KeychainApplication) activity.getApplication()).getAnalyticsManager();
return new KeychainServiceTask(context, keyRepository, analyticsManager);
}
private KeychainServiceTask(Context context, KeyWritableRepository keyRepository, AnalyticsManager analyticsManager) {
this.context = context;
this.keyRepository = keyRepository;
this.analyticsManager = analyticsManager;
}
private final Context context;
private final KeyWritableRepository keyRepository;
@SuppressLint("StaticFieldLeak")
public CancellationSignal startOperationInBackground(
Parcelable inputParcel, CryptoInputParcel cryptoInput, OperationCallback operationCallback) {
AtomicBoolean operationCancelledBoolean = new AtomicBoolean(false);
AsyncTask<Void, ProgressUpdate, OperationResult> asyncTask =
new AsyncTask<Void, ProgressUpdate, OperationResult>() {
@Override
protected OperationResult doInBackground(Void... voids) {
BaseOperation op;
if (inputParcel instanceof SignEncryptParcel) {
op = new SignEncryptOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof PgpDecryptVerifyInputParcel) {
op = new PgpDecryptVerifyOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof SaveKeyringParcel) {
op = new EditKeyOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof ChangeUnlockParcel) {
op = new ChangeUnlockOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof RevokeKeyringParcel) {
op = new RevokeOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof CertifyActionsParcel) {
op = new CertifyOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof DeleteKeyringParcel) {
op = new DeleteOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof PromoteKeyringParcel) {
op = new PromoteKeyOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof ImportKeyringParcel) {
op = new ImportOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof BackupKeyringParcel) {
op = new BackupOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof UploadKeyringParcel) {
op = new UploadOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else if (inputParcel instanceof KeybaseVerificationParcel) {
op = new KeybaseVerificationOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof InputDataParcel) {
op = new InputDataOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof BenchmarkInputParcel) {
op = new BenchmarkOperation(context, keyRepository, asyncProgressable);
} else if (inputParcel instanceof KeySyncParcel) {
op = new KeySyncOperation(context, keyRepository, asyncProgressable,
operationCancelledBoolean);
} else {
throw new AssertionError("Unrecognized input parcel in KeychainService!");
}
if (isCancelled()) {
return null;
}
analyticsManager.trackInternalServiceCall(op.getClass().getSimpleName());
// noinspection unchecked, we make sure it's the correct op above
return op.execute(inputParcel, cryptoInput);
}
Progressable asyncProgressable = new Progressable() {
@Override
public void setPreventCancel() {
publishProgress((ProgressUpdate) null);
}
@Override
public void setProgress(Integer resourceId, int current, int total) {
publishProgress(new ProgressUpdate(resourceId, current, total));
}
};
@Override
protected void onProgressUpdate(ProgressUpdate... values) {
ProgressUpdate progressUpdate = values[0];
if (progressUpdate == null) {
operationCallback.setPreventCancel();
} else {
operationCallback.setProgress(progressUpdate.resourceId, progressUpdate.current,
progressUpdate.total);
}
}
@Override
protected void onPostExecute(OperationResult result) {
operationCallback.operationFinished(result);
}
};
asyncTask.executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
CancellationSignal cancellationSignal = new CancellationSignal();
cancellationSignal.setOnCancelListener(() -> {
operationCancelledBoolean.set(true);
});
return cancellationSignal;
}
public interface OperationCallback {
void setProgress(Integer message, int current, int total);
void setPreventCancel();
void operationFinished(OperationResult data);
}
private static class ProgressUpdate {
public final Integer resourceId;
public final int current;
public final int total;
ProgressUpdate(Integer resourceId, int current, int total) {
this.resourceId = resourceId;
this.current = current;
this.total = total;
}
}
}