1 files changed, 115 insertions, 0 deletions
diff --git a/src/org/apg/AskForSecretKeyPassPhrase.java b/src/org/apg/AskForSecretKeyPassPhrase.java
new file mode 100644
index 000000000..ebed75667
--- /dev/null
+++ b/src/org/apg/AskForSecretKeyPassPhrase.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apg;
+
+import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPPrivateKey;
+import org.spongycastle.openpgp.PGPSecretKey;
+import org.apg.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.Toast;
+
+public class AskForSecretKeyPassPhrase {
+    public static interface PassPhraseCallbackInterface {
+        void passPhraseCallback(long keyId, String passPhrase);
+    }
+
+    public static Dialog createDialog(Activity context, long secretKeyId,
+            PassPhraseCallbackInterface callback) {
+        AlertDialog.Builder alert = new AlertDialog.Builder(context);
+
+        alert.setTitle(R.string.title_authentication);
+
+        final PGPSecretKey secretKey;
+        final Activity activity = context;
+
+        if (secretKeyId == Id.key.symmetric || secretKeyId == Id.key.none) {
+            secretKey = null;
+            alert.setMessage(context.getString(R.string.passPhraseForSymmetricEncryption));
+        } else {
+            secretKey = Apg.getMasterKey(Apg.getSecretKeyRing(secretKeyId));
+            if (secretKey == null) {
+                alert.setTitle(R.string.title_keyNotFound);
+                alert.setMessage(context.getString(R.string.keyNotFound, secretKeyId));
+                alert.setPositiveButton(android.R.string.ok, new OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        activity.removeDialog(Id.dialog.pass_phrase);
+                    }
+                });
+                alert.setCancelable(false);
+                return alert.create();
+            }
+            String userId = Apg.getMainUserIdSafe(context, secretKey);
+            alert.setMessage(context.getString(R.string.passPhraseFor, userId));
+        }
+
+        LayoutInflater inflater = (LayoutInflater) context
+                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        View view = inflater.inflate(R.layout.pass_phrase, null);
+        final EditText input = (EditText) view.findViewById(R.id.passPhrase);
+        final EditText inputNotUsed = (EditText) view.findViewById(R.id.passPhraseAgain);
+        inputNotUsed.setVisibility(View.GONE);
+
+        alert.setView(view);
+
+        final PassPhraseCallbackInterface cb = callback;
+        alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+                activity.removeDialog(Id.dialog.pass_phrase);
+                String passPhrase = "" + input.getText();
+                long keyId;
+                if (secretKey != null) {
+                    try {
+                        PGPPrivateKey testKey = secretKey.extractPrivateKey(
+                                passPhrase.toCharArray(), new BouncyCastleProvider());
+                        if (testKey == null) {
+                            Toast.makeText(activity, R.string.error_couldNotExtractPrivateKey,
+                                    Toast.LENGTH_SHORT).show();
+                            return;
+                        }
+                    } catch (PGPException e) {
+                        Toast.makeText(activity, R.string.wrongPassPhrase, Toast.LENGTH_SHORT)
+                                .show();
+                        return;
+                    }
+                    keyId = secretKey.getKeyID();
+                } else {
+                    keyId = Id.key.symmetric;
+                }
+                cb.passPhraseCallback(keyId, passPhrase);
+            }
+        });
+
+        alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+                activity.removeDialog(Id.dialog.pass_phrase);
+            }
+        });
+
+        return alert.create();
+    }
+}