mirror of
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74 lines
2.4 KiB
Java
74 lines
2.4 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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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.thoughtcrime.securesms;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.ServiceConnection;
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import android.os.IBinder;
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import android.support.v7.app.ActionBarActivity;
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import org.thoughtcrime.securesms.crypto.MasterSecret;
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import org.thoughtcrime.securesms.service.KeyCachingService;
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import org.thoughtcrime.securesms.util.MemoryCleaner;
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/**
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* Base Activity for changing/prompting local encryption passphrase.
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*
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* @author Moxie Marlinspike
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*/
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public abstract class PassphraseActivity extends ActionBarActivity {
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private KeyCachingService keyCachingService;
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private MasterSecret masterSecret;
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protected void setMasterSecret(MasterSecret masterSecret) {
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this.masterSecret = masterSecret;
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Intent bindIntent = new Intent(this, KeyCachingService.class);
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bindService(bindIntent, serviceConnection, Context.BIND_AUTO_CREATE);
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}
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protected MasterSecret getMasterSecret() {
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return masterSecret;
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}
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protected abstract void cleanup();
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private ServiceConnection serviceConnection = new ServiceConnection() {
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@Override
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public void onServiceConnected(ComponentName className, IBinder service) {
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keyCachingService = ((KeyCachingService.KeySetBinder)service).getService();
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keyCachingService.setMasterSecret(masterSecret);
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PassphraseActivity.this.unbindService(PassphraseActivity.this.serviceConnection);
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MemoryCleaner.clean(masterSecret);
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cleanup();
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PassphraseActivity.this.setResult(RESULT_OK);
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PassphraseActivity.this.finish();
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}
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@Override
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public void onServiceDisconnected(ComponentName name) {
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keyCachingService = null;
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}
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};
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}
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