fixes for symmetric encryption check and securely deleting reworked

org_apg/src/org/thialfihar/android/apg/Apg.java

@@ -1304,7 +1304,7 @@ public class Apg {
                     context.getString(R.string.error_noEncryptionKeysOrPassPhrase));
         }
 
-        if (signatureKeyId != -1) {
+        if (signatureKeyId != Id.key.none) {
             signingKeyRing = getSecretKeyRing(signatureKeyId);
             signingKey = getSigningKey(signatureKeyId);
             if (signingKey == null) {
@@ -1347,7 +1347,7 @@ public class Apg {
         PGPSignatureGenerator signatureGenerator = null;
         PGPV3SignatureGenerator signatureV3Generator = null;
 
-        if (signatureKeyId != -1) {
+        if (signatureKeyId != Id.key.none) {
             if (progress != null)
                 progress.setProgress(R.string.progress_preparingSignature, 10, 100);
             if (forceV3Signature) {
@@ -1374,7 +1374,7 @@ public class Apg {
             compressGen = new PGPCompressedDataGenerator(compression);
             bcpgOut = new BCPGOutputStream(compressGen.open(encryptOut));
         }
-        if (signatureKeyId != -1) {
+        if (signatureKeyId != Id.key.none) {
             if (forceV3Signature) {
                 signatureV3Generator.generateOnePassVersion(false).encode(bcpgOut);
             } else {
@@ -1395,7 +1395,7 @@ public class Apg {
         InputStream in = data.getInputStream();
         while ((n = in.read(buffer)) > 0) {
             pOut.write(buffer, 0, n);
-            if (signatureKeyId != -1) {
+            if (signatureKeyId != Id.key.none) {
                 if (forceV3Signature) {
                     signatureV3Generator.update(buffer, 0, n);
                 } else {
@@ -1411,7 +1411,7 @@ public class Apg {
 
         literalGen.close();
 
-        if (signatureKeyId != -1) {
+        if (signatureKeyId != Id.key.none) {
             if (progress != null)
                 progress.setProgress(R.string.progress_generatingSignature, 95, 100);
             if (forceV3Signature) {

org_apg/src/org/thialfihar/android/apg/service/ApgService.java

@@ -22,16 +22,14 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.util.ArrayList;
 
 import org.spongycastle.openpgp.PGPSecretKey;
 import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.thialfihar.android.apg.Apg;
 import org.thialfihar.android.apg.Constants;
-import org.thialfihar.android.apg.DataDestination;
-import org.thialfihar.android.apg.DataSource;
 import org.thialfihar.android.apg.Id;
 import org.thialfihar.android.apg.InputData;
 import org.thialfihar.android.apg.Preferences;
@@ -82,10 +80,7 @@ public class ApgService extends IntentService implements ProgressDialogUpdater {
 
     // encrypt
     public static final String SECRET_KEY_ID = "secret_key_id";
-    // public static final String DATA_SOURCE = "data_source";
-    // public static final String DATA_DESTINATION = "data_destination";
     public static final String USE_ASCII_AMOR = "use_ascii_amor";
-    // public static final String ENCRYPTION_TARGET = "encryption_target";
     public static final String ENCRYPTION_KEYS_IDS = "encryption_keys_ids";
     public static final String SIGNATURE_KEY_ID = "signature_key_id";
     public static final String COMPRESSION_ID = "compression_id";
@@ -96,6 +91,9 @@ public class ApgService extends IntentService implements ProgressDialogUpdater {
     public static final String OUTPUT_FILE = "output_file";
     public static final String PROVIDER_URI = "provider_uri";
 
+    // delete file securely
+    public static final String DELETE_FILE = "delete_file";
+
     // possible ints for EXTRA_ACTION
     public static final int ACTION_SAVE_KEYRING = 1;
     public static final int ACTION_GENERATE_KEY = 2;
@@ -105,6 +103,8 @@ public class ApgService extends IntentService implements ProgressDialogUpdater {
     public static final int ACTION_ENCRYPT_SIGN_FILE = 5;
     public static final int ACTION_ENCRYPT_SIGN_STREAM = 6;
 
+    public static final int ACTION_DELETE_FILE_SECURELY = 7;
+
     // possible data keys as result
     public static final String RESULT_NEW_KEY = "new_key";
     public static final String RESULT_NEW_KEY2 = "new_key2";
@@ -446,6 +446,30 @@ public class ApgService extends IntentService implements ProgressDialogUpdater {
 
             break;
 
+        case ACTION_DELETE_FILE_SECURELY:
+            try {
+                // Input
+                String deleteFile = data.getString(DELETE_FILE);
+
+                // Operation
+                try {
+                    Apg.deleteFileSecurely(this, new File(deleteFile), this);
+                } catch (FileNotFoundException e) {
+                    throw new Apg.GeneralException(getString(R.string.error_fileNotFound,
+                            deleteFile));
+                } catch (IOException e) {
+                    throw new Apg.GeneralException(getString(R.string.error_fileDeleteFailed,
+                            deleteFile));
+                }
+
+                // Output
+                sendMessageToHandler(ApgHandler.MESSAGE_OKAY);
+            } catch (Exception e) {
+                sendErrorToHandler(e);
+            }
+
+            break;
+
         default:
             break;
         }

org_apg/src/org/thialfihar/android/apg/ui/BaseActivity.java

@@ -218,48 +218,48 @@ public class BaseActivity extends SherlockFragmentActivity implements Runnable,
             return alert.create();
         }
 
-        case Id.dialog.delete_file: {
+//        case Id.dialog.delete_file: {
-            AlertDialog.Builder alert = new AlertDialog.Builder(this);
+//            AlertDialog.Builder alert = new AlertDialog.Builder(this);
-
+//
-            alert.setIcon(android.R.drawable.ic_dialog_alert);
+//            alert.setIcon(android.R.drawable.ic_dialog_alert);
-            alert.setTitle(R.string.warning);
+//            alert.setTitle(R.string.warning);
-            alert.setMessage(this.getString(R.string.fileDeleteConfirmation, getDeleteFile()));
+//            alert.setMessage(this.getString(R.string.fileDeleteConfirmation, getDeleteFile()));
-
+//
-            alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+//            alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                public void onClick(DialogInterface dialog, int id) {
+//                public void onClick(DialogInterface dialog, int id) {
-                    removeDialog(Id.dialog.delete_file);
+//                    removeDialog(Id.dialog.delete_file);
-                    final File file = new File(getDeleteFile());
+//                    final File file = new File(getDeleteFile());
-                    showDialog(Id.dialog.deleting);
+//                    showDialog(Id.dialog.deleting);
-                    mDeletingThread = new Thread(new Runnable() {
+//                    mDeletingThread = new Thread(new Runnable() {
-                        public void run() {
+//                        public void run() {
-                            Bundle data = new Bundle();
+//                            Bundle data = new Bundle();
-                            data.putInt(Constants.extras.STATUS, Id.message.delete_done);
+//                            data.putInt(Constants.extras.STATUS, Id.message.delete_done);
-                            try {
+//                            try {
-                                Apg.deleteFileSecurely(BaseActivity.this, file, BaseActivity.this);
+//                                Apg.deleteFileSecurely(BaseActivity.this, file, BaseActivity.this);
-                            } catch (FileNotFoundException e) {
+//                            } catch (FileNotFoundException e) {
-                                data.putString(Apg.EXTRA_ERROR, BaseActivity.this.getString(
+//                                data.putString(Apg.EXTRA_ERROR, BaseActivity.this.getString(
-                                        R.string.error_fileNotFound, file));
+//                                        R.string.error_fileNotFound, file));
-                            } catch (IOException e) {
+//                            } catch (IOException e) {
-                                data.putString(Apg.EXTRA_ERROR, BaseActivity.this.getString(
+//                                data.putString(Apg.EXTRA_ERROR, BaseActivity.this.getString(
-                                        R.string.error_fileDeleteFailed, file));
+//                                        R.string.error_fileDeleteFailed, file));
-                            }
+//                            }
-                            Message msg = new Message();
+//                            Message msg = new Message();
-                            msg.setData(data);
+//                            msg.setData(data);
-                            sendMessage(msg);
+//                            sendMessage(msg);
-                        }
+//                        }
-                    });
+//                    });
-                    mDeletingThread.start();
+//                    mDeletingThread.start();
-                }
+//                }
-            });
+//            });
-            alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+//            alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
-                public void onClick(DialogInterface dialog, int id) {
+//                public void onClick(DialogInterface dialog, int id) {
-                    removeDialog(Id.dialog.delete_file);
+//                    removeDialog(Id.dialog.delete_file);
-                }
+//                }
-            });
+//            });
-            alert.setCancelable(true);
+//            alert.setCancelable(true);
-
+//
-            return alert.create();
+//            return alert.create();
-        }
+//        }
 
         default: {
             break;
@@ -335,11 +335,11 @@ public class BaseActivity extends SherlockFragmentActivity implements Runnable,
             break;
         }
 
-        case Id.message.delete_done: {
+//        case Id.message.delete_done: {
-            mProgressDialog = null;
+//            mProgressDialog = null;
-            deleteDoneCallback(msg);
+//            deleteDoneCallback(msg);
-            break;
+//            break;
-        }
+//        }
 
         case Id.message.import_done: // intentionally no break
         case Id.message.export_done: // intentionally no break
@@ -360,21 +360,21 @@ public class BaseActivity extends SherlockFragmentActivity implements Runnable,
 
     }
 
-    public void deleteDoneCallback(Message msg) {
+//    public void deleteDoneCallback(Message msg) {
-        removeDialog(Id.dialog.deleting);
+//        removeDialog(Id.dialog.deleting);
-        mDeletingThread = null;
+//        mDeletingThread = null;
-
+//
-        Bundle data = msg.getData();
+//        Bundle data = msg.getData();
-        String error = data.getString(Apg.EXTRA_ERROR);
+//        String error = data.getString(Apg.EXTRA_ERROR);
-        String message;
+//        String message;
-        if (error != null) {
+//        if (error != null) {
-            message = getString(R.string.errorMessage, error);
+//            message = getString(R.string.errorMessage, error);
-        } else {
+//        } else {
-            message = getString(R.string.fileDeleteSuccessful);
+//            message = getString(R.string.fileDeleteSuccessful);
-        }
+//        }
-
+//
-        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+//        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
-    }
+//    }
 
     public void passPhraseCallback(long keyId, String passPhrase) {
         // TODO: Not needed anymore, now implemented in AskForSecretKeyPass

org_apg/src/org/thialfihar/android/apg/ui/EncryptActivity.java

@@ -1,4 +1,5 @@
 /*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
  * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -26,6 +27,7 @@ import org.thialfihar.android.apg.Id;
 import org.thialfihar.android.apg.Preferences;
 import org.thialfihar.android.apg.service.ApgHandler;
 import org.thialfihar.android.apg.service.ApgService;
+import org.thialfihar.android.apg.ui.dialog.DeleteFileDialogFragment;
 import org.thialfihar.android.apg.ui.dialog.FileDialogFragment;
 import org.thialfihar.android.apg.ui.dialog.PassphraseDialogFragment;
 import org.thialfihar.android.apg.ui.dialog.ProgressDialogFragment;
@@ -115,7 +117,7 @@ public class EncryptActivity extends SherlockFragmentActivity {
 
     private boolean mGenerateSignature = false;
 
-    private long mSecretKeyId = 0;
+    private long mSecretKeyId = Id.key.none;
 
     private ProgressDialogFragment mEncryptingDialog;
     private FileDialogFragment mFileDialog;
@@ -698,8 +700,6 @@ public class EncryptActivity extends SherlockFragmentActivity {
     }
 
     private void askForOutputFilename() {
-        // showDialog(Id.dialog.output_filename);
-
         // Message is received after passphrase is cached
         Handler returnHandler = new Handler() {
             @Override
@@ -733,7 +733,7 @@ public class EncryptActivity extends SherlockFragmentActivity {
 
         boolean useAsciiArmour = true;
         long encryptionKeyIds[] = null;
-        long signatureKeyId = -1; // -1 means no signature! 
+        long signatureKeyId = Id.key.none;
         int compressionId = 0;
         boolean signOnly = false;
 
@@ -743,6 +743,7 @@ public class EncryptActivity extends SherlockFragmentActivity {
             if (passPhrase.length() == 0) {
                 passPhrase = null;
             }
+            // signatureKeyId = Id.key.symmetric;
 
             data.putString(ApgService.SYMMETRIC_PASSPHRASE, passPhrase);
         } else {
@@ -799,7 +800,7 @@ public class EncryptActivity extends SherlockFragmentActivity {
 
         intent.putExtra(ApgService.EXTRA_DATA, data);
 
-        // show progress dialog
+        // create progress dialog
         mEncryptingDialog = ProgressDialogFragment.newInstance(R.string.progress_encrypting,
                 ProgressDialog.STYLE_HORIZONTAL);
 
@@ -852,10 +853,12 @@ public class EncryptActivity extends SherlockFragmentActivity {
                     case Id.target.file:
                         Toast.makeText(EncryptActivity.this, R.string.encryptionSuccessful,
                                 Toast.LENGTH_SHORT).show();
+
                         if (mDeleteAfter.isChecked()) {
-                            // TODO: Reimplement that!
+                            // Create and show dialog to delete original file
-                            // setDeleteFile(mInputFilename);
+                            DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment
-                            // showDialog(Id.dialog.delete_file);
+                                    .newInstance(mInputFilename);
+                            deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog");
                         }
                         break;
 
@@ -872,7 +875,8 @@ public class EncryptActivity extends SherlockFragmentActivity {
         Messenger messenger = new Messenger(saveHandler);
         intent.putExtra(ApgService.EXTRA_MESSENGER, messenger);
 
-        mEncryptingDialog.show(getSupportFragmentManager(), "dialog");
+        // show progress dialog
+        mEncryptingDialog.show(getSupportFragmentManager(), "encryptingDialog");
 
         // start service with intent
         startService(intent);
@@ -908,7 +912,7 @@ public class EncryptActivity extends SherlockFragmentActivity {
                     + getResources().getString(R.string.nKeysSelected));
         }
 
-        if (getSecretKeyId() == 0) {
+        if (getSecretKeyId() == Id.key.none) {
             mSign.setChecked(false);
             mMainUserId.setText("");
             mMainUserIdRest.setText("");

org_apg/src/org/thialfihar/android/apg/ui/dialog/DeleteFileDialogFragment.java

@@ -0,0 +1,118 @@
+/*
+ * 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.thialfihar.android.apg.R;
+import org.thialfihar.android.apg.service.ApgHandler;
+import org.thialfihar.android.apg.service.ApgService;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Message;
+import android.os.Messenger;
+import android.support.v4.app.DialogFragment;
+import android.support.v4.app.FragmentActivity;
+import android.widget.Toast;
+
+public class DeleteFileDialogFragment extends DialogFragment {
+
+    private static final String ARG_DELETE_FILE = "delete_file";
+
+    /**
+     * Creates new instance of this delete file dialog fragment
+     */
+    public static DeleteFileDialogFragment newInstance(String deleteFile) {
+        DeleteFileDialogFragment frag = new DeleteFileDialogFragment();
+        Bundle args = new Bundle();
+
+        args.putString(ARG_DELETE_FILE, deleteFile);
+
+        frag.setArguments(args);
+
+        return frag;
+    }
+
+    /**
+     * Creates dialog
+     */
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        final FragmentActivity activity = getActivity();
+
+        final String deleteFile = getArguments().getString(ARG_DELETE_FILE);
+
+        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+
+        alert.setIcon(android.R.drawable.ic_dialog_alert);
+        alert.setTitle(R.string.warning);
+        alert.setMessage(this.getString(R.string.fileDeleteConfirmation, deleteFile));
+
+        alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+                dismiss();
+
+                // Send all information needed to service to edit key in other thread
+                Intent intent = new Intent(activity, ApgService.class);
+
+                // fill values for this action
+                Bundle data = new Bundle();
+
+                intent.putExtra(ApgService.EXTRA_ACTION, ApgService.ACTION_DELETE_FILE_SECURELY);
+                data.putString(ApgService.DELETE_FILE, deleteFile);
+                intent.putExtra(ApgService.EXTRA_DATA, data);
+
+                ProgressDialogFragment deletingDialog = ProgressDialogFragment.newInstance(
+                        R.string.progress_deletingSecurely, ProgressDialog.STYLE_HORIZONTAL);
+
+                // Message is received after deleting is done in ApgService
+                ApgHandler saveHandler = new ApgHandler(activity, deletingDialog) {
+                    public void handleMessage(Message message) {
+                        // handle messages by standard ApgHandler first
+                        super.handleMessage(message);
+
+                        if (message.arg1 == ApgHandler.MESSAGE_OKAY) {
+                            Toast.makeText(activity, R.string.fileDeleteSuccessful,
+                                    Toast.LENGTH_SHORT).show();
+                        }
+                    };
+                };
+
+                // Create a new Messenger for the communication back
+                Messenger messenger = new Messenger(saveHandler);
+                intent.putExtra(ApgService.EXTRA_MESSENGER, messenger);
+
+                // show progress dialog
+                deletingDialog.show(activity.getSupportFragmentManager(), "deletingDialog");
+
+                // start service with intent
+                activity.startService(intent);
+            }
+        });
+        alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+                dismiss();
+            }
+        });
+        alert.setCancelable(true);
+
+        return alert.create();
+    }
+}