2012-08-08 02:09:16 +00:00
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/**
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2011-12-20 18:20:44 +00:00
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* Copyright (C) 2011 Whisper Systems
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2012-08-08 02:09:16 +00:00
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*
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2011-12-20 18:20:44 +00:00
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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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2012-08-08 02:09:16 +00:00
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*
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2011-12-20 18:20:44 +00:00
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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.os.Bundle;
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2012-08-08 02:09:16 +00:00
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import android.text.Editable;
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2011-12-20 18:20:44 +00:00
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.EditText;
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2013-07-01 17:15:36 +00:00
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import android.widget.TextView;
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2011-12-20 18:20:44 +00:00
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import android.widget.Toast;
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2012-08-08 02:09:16 +00:00
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import org.thoughtcrime.securesms.crypto.InvalidPassphraseException;
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2013-08-18 01:37:18 +00:00
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import org.whispersystems.textsecure.crypto.MasterSecret;
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2012-08-08 02:09:16 +00:00
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import org.thoughtcrime.securesms.crypto.MasterSecretUtil;
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import org.thoughtcrime.securesms.util.MemoryCleaner;
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2013-07-10 01:26:18 +00:00
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import org.thoughtcrime.securesms.util.TextSecurePreferences;
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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/**
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* Activity for changing a user's local encryption passphrase.
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2012-08-08 02:09:16 +00:00
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*
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2011-12-20 18:20:44 +00:00
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* @author Moxie Marlinspike
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*/
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public class PassphraseChangeActivity extends PassphraseActivity {
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2013-07-01 17:15:36 +00:00
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private EditText originalPassphrase;
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private EditText newPassphrase;
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private EditText repeatPassphrase;
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private TextView originalPassphraseLabel;
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private Button okButton;
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private Button cancelButton;
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2011-12-20 18:20:44 +00:00
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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setContentView(R.layout.change_passphrase_activity);
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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initializeResources();
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}
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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private void initializeResources() {
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this.originalPassphraseLabel = (TextView) findViewById(R.id.old_passphrase_label);
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this.originalPassphrase = (EditText) findViewById(R.id.old_passphrase );
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this.newPassphrase = (EditText) findViewById(R.id.new_passphrase );
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this.repeatPassphrase = (EditText) findViewById(R.id.repeat_passphrase );
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2011-12-20 18:20:44 +00:00
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2013-07-01 17:15:36 +00:00
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this.okButton = (Button ) findViewById(R.id.ok_button );
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this.cancelButton = (Button ) findViewById(R.id.cancel_button );
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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this.okButton.setOnClickListener(new OkButtonClickListener());
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this.cancelButton.setOnClickListener(new CancelButtonClickListener());
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2013-07-01 17:15:36 +00:00
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2013-07-10 01:26:18 +00:00
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if (TextSecurePreferences.isPasswordDisabled(this)) {
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this.originalPassphrase.setVisibility(View.GONE);
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this.originalPassphraseLabel.setVisibility(View.GONE);
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} else {
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this.originalPassphrase.setVisibility(View.VISIBLE);
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this.originalPassphraseLabel.setVisibility(View.VISIBLE);
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}
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2011-12-20 18:20:44 +00:00
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}
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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private void verifyAndSavePassphrases() {
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2012-08-08 02:09:16 +00:00
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Editable originalText = this.originalPassphrase.getText();
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Editable newText = this.newPassphrase.getText();
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Editable repeatText = this.repeatPassphrase.getText();
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String original = (originalText == null ? "" : originalText.toString());
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String passphrase = (newText == null ? "" : newText.toString());
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String passphraseRepeat = (repeatText == null ? "" : repeatText.toString());
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2013-07-10 01:26:18 +00:00
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if (TextSecurePreferences.isPasswordDisabled(this)) {
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2013-07-01 17:15:36 +00:00
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original = MasterSecretUtil.UNENCRYPTED_PASSPHRASE;
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}
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2011-12-20 18:20:44 +00:00
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try {
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if (!passphrase.equals(passphraseRepeat)) {
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2012-09-08 03:03:23 +00:00
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Toast.makeText(getApplicationContext(),
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2012-09-20 02:56:04 +00:00
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R.string.PassphraseChangeActivity_passphrases_dont_match_exclamation,
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2012-09-08 03:03:23 +00:00
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Toast.LENGTH_SHORT).show();
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2011-12-20 18:20:44 +00:00
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this.newPassphrase.setText("");
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this.repeatPassphrase.setText("");
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} else {
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MasterSecret masterSecret = MasterSecretUtil.changeMasterSecretPassphrase(this, original, passphrase);
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2013-07-10 01:26:18 +00:00
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TextSecurePreferences.setPasswordDisabled(this, false);
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2013-07-01 17:15:36 +00:00
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2011-12-20 18:20:44 +00:00
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MemoryCleaner.clean(original);
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MemoryCleaner.clean(passphrase);
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MemoryCleaner.clean(passphraseRepeat);
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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setMasterSecret(masterSecret);
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}
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} catch (InvalidPassphraseException e) {
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2012-09-20 02:56:04 +00:00
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Toast.makeText(this, R.string.PassphraseChangeActivity_incorrect_old_passphrase_exclamation,
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Toast.LENGTH_LONG).show();
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2011-12-20 18:20:44 +00:00
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this.originalPassphrase.setText("");
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}
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}
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private class CancelButtonClickListener implements OnClickListener {
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public void onClick(View v) {
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finish();
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}
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}
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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private class OkButtonClickListener implements OnClickListener {
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public void onClick(View v) {
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verifyAndSavePassphrases();
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}
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}
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@Override
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protected void cleanup() {
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this.originalPassphrase = null;
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this.newPassphrase = null;
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this.repeatPassphrase = null;
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2012-08-08 02:09:16 +00:00
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2011-12-20 18:20:44 +00:00
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System.gc();
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}
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}
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