session-android/src/org/thoughtcrime/securesms/PassphrasePromptActivity.java
2012-07-31 14:18:14 -07:00

85 lines
2.7 KiB
Java

/**
* Copyright (C) 2011 Whisper Systems
*
* 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.thoughtcrime.securesms;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import org.thoughtcrime.securesms.crypto.InvalidPassphraseException;
import org.thoughtcrime.securesms.crypto.MasterSecret;
import org.thoughtcrime.securesms.crypto.MasterSecretUtil;
import org.thoughtcrime.securesms.util.MemoryCleaner;
/**
* Activity that prompts for a users's passphrase.
*
* @author Moxie Marlinspike
*/
public class PassphrasePromptActivity extends PassphraseActivity {
private EditText passphraseText;
private Button okButton;
private Button cancelButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.prompt_passphrase_activity);
initializeResources();
}
private void initializeResources() {
passphraseText = (EditText)findViewById(R.id.passphrase_edit);
okButton = (Button)findViewById(R.id.ok_button);
cancelButton = (Button)findViewById(R.id.cancel_button);
okButton.setOnClickListener(new OkButtonClickListener());
cancelButton.setOnClickListener(new CancelButtonClickListener());
}
private class OkButtonClickListener implements OnClickListener {
public void onClick(View v) {
try {
String passphrase = passphraseText.getText().toString();
MasterSecret masterSecret = MasterSecretUtil.getMasterSecret(PassphrasePromptActivity.this, passphrase);
MemoryCleaner.clean(passphrase);
setMasterSecret(masterSecret);
} catch (InvalidPassphraseException ipe) {
Toast.makeText(getApplicationContext(), "Invalid Passphrase!", Toast.LENGTH_SHORT).show();
}
}
}
private class CancelButtonClickListener implements OnClickListener {
public void onClick(View v) {
finish();
}
}
@Override
protected void cleanup() {
this.passphraseText = null;
System.gc();
}
}