much work on EncryptActivity

2 files changed, 329 insertions, 0 deletions

diff --git a/org_apg/src/org/thialfihar/android/apg/ui/dialog/PassphraseDialogFragment.java b/org_apg/src/org/thialfihar/android/apg/ui/dialog/PassphraseDialogFragment.java
new file mode 100644
index 000000000..e86d447dd
--- /dev/null
+++ b/org_apg/src/org/thialfihar/android/apg/ui/dialog/PassphraseDialogFragment.java
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * 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.thialfihar.android.apg.ui.dialog;
+
+import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPPrivateKey;
+import org.spongycastle.openpgp.PGPSecretKey;
+import org.thialfihar.android.apg.Apg;
+import org.thialfihar.android.apg.Constants;
+import org.thialfihar.android.apg.Id;
+import org.thialfihar.android.apg.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.os.Bundle;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.RemoteException;
+import android.support.v4.app.DialogFragment;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+public class PassphraseDialogFragment extends DialogFragment {
+
+    private Messenger mMessenger;
+
+    private static final String ARG_MESSENGER = "messenger";
+    private static final String ARG_SECRET_KEY_ID = "secret_key_id";
+
+    public static final int MESSAGE_OKAY = 1;
+
+    /**
+     * Instantiates new instance of this dialog fragment
+     * 
+     * @param secretKeyId
+     *            secret key id you want to use
+     * @param messenger
+     *            to communicate back after caching the passphrase
+     * @return
+     */
+    public static PassphraseDialogFragment newInstance(long secretKeyId, Messenger messenger) {
+        PassphraseDialogFragment frag = new PassphraseDialogFragment();
+        Bundle args = new Bundle();
+        args.putLong(ARG_SECRET_KEY_ID, secretKeyId);
+        args.putParcelable(ARG_MESSENGER, messenger);
+
+        frag.setArguments(args);
+        return frag;
+    }
+
+    /**
+     * Creates dialog
+     */
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        final Activity activity = getActivity();
+
+        long secretKeyId = getArguments().getLong(ARG_SECRET_KEY_ID);
+        mMessenger = getArguments().getParcelable(ARG_MESSENGER);
+
+        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+
+        alert.setTitle(R.string.title_authentication);
+
+        final PGPSecretKey secretKey;
+
+        if (secretKeyId == Id.key.symmetric || secretKeyId == Id.key.none) {
+            secretKey = null;
+            alert.setMessage(getString(R.string.passPhraseForSymmetricEncryption));
+        } else {
+            secretKey = Apg.getMasterKey(Apg.getSecretKeyRing(secretKeyId));
+            if (secretKey == null) {
+                alert.setTitle(R.string.title_keyNotFound);
+                alert.setMessage(getString(R.string.keyNotFound, secretKeyId));
+                alert.setPositiveButton(android.R.string.ok, new OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        dismiss();
+                    }
+                });
+                alert.setCancelable(false);
+                return alert.create();
+            }
+            String userId = Apg.getMainUserIdSafe(activity, secretKey);
+            alert.setMessage(getString(R.string.passPhraseFor, userId));
+        }
+
+        LayoutInflater inflater = activity.getLayoutInflater();
+        View view = inflater.inflate(R.layout.passphrase, null);
+        final EditText input = (EditText) view.findViewById(R.id.passphrase_passphrase);
+
+        final TextView labelNotUsed = (TextView) view
+                .findViewById(R.id.passphrase_label_passphrase_again);
+        labelNotUsed.setVisibility(View.GONE);
+        final EditText inputNotUsed = (EditText) view
+                .findViewById(R.id.passphrase_passphrase_again);
+        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);
+                dismiss();
+                String passPhrase = input.getText().toString();
+                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;
+                }
+
+                // cache again
+                Apg.setCachedPassPhrase(keyId, passPhrase);
+                // return by callback
+                // cb.passPhraseCallback(keyId, passPhrase);
+                sendMessageToHandler(MESSAGE_OKAY);
+            }
+        });
+
+        alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+                // activity.removeDialog(Id.dialog.pass_phrase);
+                dismiss();
+            }
+        });
+
+        // check if the key has no passphrase
+        if (secretKey != null) {
+            try {
+                Log.d(Constants.TAG, "Check if key has no passphrase...");
+                PGPPrivateKey testKey = secretKey.extractPrivateKey("".toCharArray(),
+                        new BouncyCastleProvider());
+                if (testKey != null) {
+                    Log.d(Constants.TAG, "Key has no passphrase!");
+
+                    // cache null
+                    Apg.setCachedPassPhrase(secretKey.getKeyID(), null);
+                    // return by callback
+                    // cb.passPhraseCallback(secretKey.getKeyID(), null);
+                    sendMessageToHandler(MESSAGE_OKAY);
+
+                    return null;
+                }
+            } catch (PGPException e) {
+
+            }
+        }
+        return alert.create();
+    }
+
+    /**
+     * Send message back to handler which is initialized in a activity
+     * 
+     * @param arg1
+     *            Message you want to send
+     */
+    private void sendMessageToHandler(Integer arg1) {
+        Message msg = Message.obtain();
+        msg.arg1 = arg1;
+
+        try {
+            mMessenger.send(msg);
+        } catch (RemoteException e) {
+            Log.w(Constants.TAG, "Exception sending message, Is handler present?", e);
+        } catch (NullPointerException e) {
+            Log.w(Constants.TAG, "Messenger is null!", e);
+        }
+    }
+}
\ No newline at end of file
diff --git a/org_apg/src/org/thialfihar/android/apg/ui/dialog/ProgressDialogFragment.java b/org_apg/src/org/thialfihar/android/apg/ui/dialog/ProgressDialogFragment.java
new file mode 100644
index 000000000..c531c4848
--- /dev/null
+++ b/org_apg/src/org/thialfihar/android/apg/ui/dialog/ProgressDialogFragment.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * 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.thialfihar.android.apg.ui.dialog;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnKeyListener;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.view.KeyEvent;
+
+public class ProgressDialogFragment extends DialogFragment {
+
+    private static final String ARG_MESSAGE_ID = "message_id";
+    private static final String ARG_STYLE = "style";
+
+    /**
+     * Instantiates new instance of this fragment
+     * 
+     * @param id
+     * @return
+     */
+    public static ProgressDialogFragment newInstance(int messageId, int style) {
+        ProgressDialogFragment frag = new ProgressDialogFragment();
+        Bundle args = new Bundle();
+        args.putInt(ARG_MESSAGE_ID, messageId);
+        args.putInt(ARG_STYLE, style);
+
+        frag.setArguments(args);
+        return frag;
+    }
+
+    /**
+     * Updates progress of dialog
+     * 
+     * @param messageId
+     * @param progress
+     * @param max
+     */
+    public void setProgress(int messageId, int progress, int max) {
+        setProgress(getString(messageId), progress, max);
+    }
+
+    /**
+     * Updates progress of dialog
+     * 
+     * @param messageId
+     * @param progress
+     * @param max
+     */
+    public void setProgress(int progress, int max) {
+        ProgressDialog dialog = (ProgressDialog) getDialog();
+
+        dialog.setProgress(progress);
+        dialog.setMax(max);
+    }
+
+    /**
+     * Updates progress of dialog
+     * 
+     * @param messageId
+     * @param progress
+     * @param max
+     */
+    public void setProgress(String message, int progress, int max) {
+        ProgressDialog dialog = (ProgressDialog) getDialog();
+
+        dialog.setMessage(message);
+        dialog.setProgress(progress);
+        dialog.setMax(max);
+    }
+
+    /**
+     * Creates dialog
+     */
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        Activity activity = getActivity();
+
+        ProgressDialog dialog = new ProgressDialog(activity);
+        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
+        dialog.setCancelable(false);
+        dialog.setCanceledOnTouchOutside(false);
+
+        int messageId = getArguments().getInt(ARG_MESSAGE_ID);
+        int style = getArguments().getInt(ARG_STYLE);
+
+        dialog.setMessage(getString(messageId));
+        dialog.setProgressStyle(style);
+
+        // Disable the back button
+        OnKeyListener keyListener = new OnKeyListener() {
+
+            @Override
+            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
+
+                if (keyCode == KeyEvent.KEYCODE_BACK) {
+                    return true;
+                }
+                return false;
+            }
+
+        };
+        dialog.setOnKeyListener(keyListener);
+
+        return dialog;
+    }
+}
\ No newline at end of file