228 lines
10 KiB
Java
228 lines
10 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2014 Vincent Breitmoser <v.breitmoser@mugenguild.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.service;
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import android.app.Service;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.os.Message;
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import android.os.Messenger;
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import android.os.Parcelable;
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import android.os.RemoteException;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.operations.BaseOperation;
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import org.sufficientlysecure.keychain.operations.BenchmarkOperation;
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import org.sufficientlysecure.keychain.operations.CertifyOperation;
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import org.sufficientlysecure.keychain.operations.ConsolidateOperation;
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import org.sufficientlysecure.keychain.operations.DeleteOperation;
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import org.sufficientlysecure.keychain.operations.EditKeyOperation;
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import org.sufficientlysecure.keychain.operations.BackupOperation;
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import org.sufficientlysecure.keychain.operations.ImportOperation;
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import org.sufficientlysecure.keychain.operations.KeybaseVerificationOperation;
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import org.sufficientlysecure.keychain.operations.InputDataOperation;
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import org.sufficientlysecure.keychain.operations.ChangeUnlockOperation;
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import org.sufficientlysecure.keychain.operations.PromoteKeyOperation;
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import org.sufficientlysecure.keychain.operations.RevokeOperation;
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import org.sufficientlysecure.keychain.operations.SignEncryptOperation;
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import org.sufficientlysecure.keychain.operations.UploadOperation;
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import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
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import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
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import org.sufficientlysecure.keychain.pgp.Progressable;
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import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
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import org.sufficientlysecure.keychain.provider.KeyWritableRepository;
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import org.sufficientlysecure.keychain.service.ServiceProgressHandler.MessageStatus;
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import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
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import org.sufficientlysecure.keychain.util.Log;
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import java.util.concurrent.atomic.AtomicBoolean;
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/**
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* This Service contains all important long lasting operations for OpenKeychain. It receives Intents with
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* data from the activities or other apps, executes them, and stops itself after doing them.
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*/
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public class KeychainService extends Service implements Progressable {
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// messenger for communication (hack)
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public static final String EXTRA_MESSENGER = "messenger";
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// extras for operation
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public static final String EXTRA_OPERATION_INPUT = "op_input";
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public static final String EXTRA_CRYPTO_INPUT = "crypto_input";
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public static final String ACTION_CANCEL = "action_cancel";
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// this attribute can possibly merged with the one above? not sure...
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private AtomicBoolean mActionCanceled = new AtomicBoolean(false);
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ThreadLocal<Messenger> mMessenger = new ThreadLocal<>();
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@Override
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public IBinder onBind(Intent intent) {
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return null;
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}
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/**
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* This is run on the main thread, we need to spawn a runnable which runs on another thread for the actual operation
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*/
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@Override
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public int onStartCommand(final Intent intent, int flags, int startId) {
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if (intent.getAction() != null && intent.getAction().equals(ACTION_CANCEL)) {
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mActionCanceled.set(true);
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return START_NOT_STICKY;
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}
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Runnable actionRunnable = new Runnable() {
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@Override
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public void run() {
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// We have not been cancelled! (yet)
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mActionCanceled.set(false);
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Bundle extras = intent.getExtras();
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// Set messenger for communication (for this particular thread)
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mMessenger.set(extras.<Messenger>getParcelable(EXTRA_MESSENGER));
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// Input
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Parcelable inputParcel = extras.getParcelable(EXTRA_OPERATION_INPUT);
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CryptoInputParcel cryptoInput = extras.getParcelable(EXTRA_CRYPTO_INPUT);
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// Operation
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BaseOperation op;
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// just for brevity
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KeychainService outerThis = KeychainService.this;
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KeyWritableRepository databaseInteractor =
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KeyWritableRepository.createDatabaseReadWriteInteractor(outerThis);
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if (inputParcel instanceof SignEncryptParcel) {
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op = new SignEncryptOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof PgpDecryptVerifyInputParcel) {
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op = new PgpDecryptVerifyOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof SaveKeyringParcel) {
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op = new EditKeyOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof ChangeUnlockParcel) {
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op = new ChangeUnlockOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof RevokeKeyringParcel) {
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op = new RevokeOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof CertifyActionsParcel) {
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op = new CertifyOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof DeleteKeyringParcel) {
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op = new DeleteOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof PromoteKeyringParcel) {
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op = new PromoteKeyOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof ImportKeyringParcel) {
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op = new ImportOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof BackupKeyringParcel) {
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op = new BackupOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof UploadKeyringParcel) {
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op = new UploadOperation(outerThis, databaseInteractor, outerThis, mActionCanceled);
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} else if (inputParcel instanceof ConsolidateInputParcel) {
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op = new ConsolidateOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof KeybaseVerificationParcel) {
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op = new KeybaseVerificationOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof InputDataParcel) {
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op = new InputDataOperation(outerThis, databaseInteractor, outerThis);
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} else if (inputParcel instanceof BenchmarkInputParcel) {
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op = new BenchmarkOperation(outerThis, databaseInteractor, outerThis);
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} else {
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throw new AssertionError("Unrecognized input parcel in KeychainService!");
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}
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@SuppressWarnings("unchecked") // this is unchecked, we make sure it's the correct op above!
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OperationResult result = op.execute(inputParcel, cryptoInput);
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sendMessageToHandler(MessageStatus.OKAY, result);
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}
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};
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Thread actionThread = new Thread(actionRunnable);
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actionThread.start();
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return START_NOT_STICKY;
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}
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private void sendMessageToHandler(MessageStatus status, Integer arg2, Bundle data) {
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Message msg = Message.obtain();
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assert msg != null;
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msg.arg1 = status.ordinal();
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if (arg2 != null) {
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msg.arg2 = arg2;
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}
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if (data != null) {
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msg.setData(data);
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}
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try {
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mMessenger.get().send(msg);
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} catch (RemoteException e) {
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Log.w(Constants.TAG, "Exception sending message, Is handler present?", e);
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} catch (NullPointerException e) {
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Log.w(Constants.TAG, "Messenger is null!", e);
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}
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}
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private void sendMessageToHandler(MessageStatus status, OperationResult data) {
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Bundle bundle = new Bundle();
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bundle.putParcelable(OperationResult.EXTRA_RESULT, data);
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sendMessageToHandler(status, null, bundle);
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}
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private void sendMessageToHandler(MessageStatus status) {
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sendMessageToHandler(status, null, null);
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}
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/**
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* Set progress of ProgressDialog by sending message to handler on UI thread
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*/
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@Override
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public void setProgress(String message, int progress, int max) {
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Log.d(Constants.TAG, "Send message by setProgress with progress=" + progress + ", max="
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+ max);
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Bundle data = new Bundle();
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if (message != null) {
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data.putString(ServiceProgressHandler.DATA_MESSAGE, message);
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}
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data.putInt(ServiceProgressHandler.DATA_PROGRESS, progress);
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data.putInt(ServiceProgressHandler.DATA_PROGRESS_MAX, max);
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sendMessageToHandler(MessageStatus.UPDATE_PROGRESS, null, data);
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}
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@Override
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public void setProgress(int resourceId, int progress, int max) {
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setProgress(getString(resourceId), progress, max);
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}
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@Override
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public void setProgress(int progress, int max) {
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setProgress(null, progress, max);
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}
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@Override
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public void setPreventCancel() {
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sendMessageToHandler(MessageStatus.PREVENT_CANCEL);
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}
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}
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