/** * 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 . */ package org.thoughtcrime.securesms; import android.os.Bundle; import android.text.Editable; 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 { Editable text = passphraseText.getText(); String passphrase = (text == null ? "" : text.toString()); MasterSecret masterSecret = MasterSecretUtil.getMasterSecret(PassphrasePromptActivity.this, passphrase); MemoryCleaner.clean(passphrase); setMasterSecret(masterSecret); } catch (InvalidPassphraseException ipe) { Toast.makeText(getApplicationContext(), R.string.invalid_passphrase_exclamation, Toast.LENGTH_SHORT).show(); } } } private class CancelButtonClickListener implements OnClickListener { public void onClick(View v) { finish(); } } @Override protected void cleanup() { this.passphraseText = null; System.gc(); } }