Initial Project Import

src/org/thoughtcrime/securesms/PassphrasePromptActivity.java

@@ -0,0 +1,85 @@
+/** 
+ * 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 org.thoughtcrime.securesms.crypto.InvalidPassphraseException;
+import org.thoughtcrime.securesms.crypto.MasterSecret;
+import org.thoughtcrime.securesms.crypto.MasterSecretUtil;
+import org.thoughtcrime.securesms.util.MemoryCleaner;
+
+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;
+
+/**
+ * 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();
+  }
+	
+}