Externalize all import actions into ImportKeysActivity

1 files changed, 501 insertions, 0 deletions

diff --git a/APG/src/org/thialfihar/android/apg/ui/ImportKeysActivity.java b/APG/src/org/thialfihar/android/apg/ui/ImportKeysActivity.java
new file mode 100644
index 000000000..bb40d1033
--- /dev/null
+++ b/APG/src/org/thialfihar/android/apg/ui/ImportKeysActivity.java
@@ -0,0 +1,501 @@
+/*
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2011 Senecaso
+ * 
+ * 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;
+
+import org.thialfihar.android.apg.Constants;
+import org.thialfihar.android.apg.Id;
+import org.thialfihar.android.apg.compatibility.DialogFragmentWorkaround;
+import org.thialfihar.android.apg.helper.OtherHelper;
+import org.thialfihar.android.apg.service.ApgIntentServiceHandler;
+import org.thialfihar.android.apg.service.ApgIntentService;
+import org.thialfihar.android.apg.R;
+
+import android.app.AlertDialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Messenger;
+
+import org.thialfihar.android.apg.ui.dialog.DeleteFileDialogFragment;
+import org.thialfihar.android.apg.ui.dialog.FileDialogFragment;
+import org.thialfihar.android.apg.util.Log;
+
+import android.view.View;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.actionbarsherlock.app.SherlockFragmentActivity;
+import com.actionbarsherlock.view.Menu;
+import com.actionbarsherlock.view.MenuItem;
+import com.google.zxing.integration.android.IntentIntegrator;
+import com.google.zxing.integration.android.IntentResult;
+
+public class ImportKeysActivity extends SherlockFragmentActivity {
+
+    public static final String ACTION = Constants.INTENT_PREFIX + "IMPORT";
+    public static final String ACTION_IMPORT_FROM_FILE = Constants.INTENT_PREFIX
+            + "IMPORT_FROM_FILE";
+    public static final String ACTION_IMPORT_FROM_QR_CODE = Constants.INTENT_PREFIX
+            + "IMPORT_FROM_QR_CODE";
+    public static final String ACTION_IMPORT_FROM_NFC = Constants.INTENT_PREFIX + "IMPORT_FROM_NFC";
+
+    // only used by IMPORT_AND_RETURN
+    public static final String EXTRA_TEXT = "text";
+
+    protected String mImportFilename = Constants.path.APP_DIR + "/";
+
+    // public static final String EXTRA_KEY_ID = "keyId";
+
+    protected String mImportData;
+    protected boolean mDeleteAfterImport = false;
+
+    FileDialogFragment mFileDialog;
+
+    private TextView mContentView;
+
+    private String mScannedContent;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.import_keys);
+        mContentView = (TextView) findViewById(R.id.import_from_qr_code_content);
+
+        // set actionbar without home button if called from another app
+        OtherHelper.setActionBarBackButton(this);
+
+        handleActions(getIntent());
+    }
+
+    /**
+     * ActionBar menu is created based on class variables to change it at runtime
+     * 
+     */
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        menu.add(1, Id.menu.option.import_from_file, 0, R.string.menu_importFromFile)
+                .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
+        menu.add(1, Id.menu.option.import_from_qr_code, 1, R.string.menu_importFromQrCode)
+                .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
+        menu.add(1, Id.menu.option.import_from_nfc, 2, R.string.menu_importFromNfc)
+                .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
+
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+
+        case android.R.id.home:
+            // app icon in Action Bar clicked; go home
+            Intent intent = new Intent(this, MainActivity.class);
+            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+            startActivity(intent);
+            return true;
+
+        case Id.menu.option.import_from_file:
+            showImportKeysDialog();
+
+            return true;
+
+        case Id.menu.option.import_from_qr_code:
+            importFromQrCode();
+
+            return true;
+
+        case Id.menu.option.import_from_nfc:
+
+            return true;
+
+        default:
+            return super.onOptionsItemSelected(item);
+
+        }
+    }
+
+    protected void handleActions(Intent intent) {
+        String action = intent.getAction();
+        Bundle extras = intent.getExtras();
+
+        if (extras == null) {
+            extras = new Bundle();
+        }
+
+        /**
+         * Android Standard Actions
+         */
+        if (Intent.ACTION_VIEW.equals(action)) {
+            // Android's Action when opening file associated to APG (see AndroidManifest.xml)
+            // override action to delegate it to APGs ACTION_IMPORT
+            action = ACTION;
+        }
+
+        /**
+         * APG's own Actions
+         */
+        if (ACTION.equals(action)) {
+            if ("file".equals(intent.getScheme()) && intent.getDataString() != null) {
+                mImportFilename = intent.getData().getPath();
+            } else {
+                mImportData = intent.getStringExtra(EXTRA_TEXT);
+            }
+            importKeys();
+        } else if (ACTION_IMPORT_FROM_FILE.equals(action)) {
+            if ("file".equals(intent.getScheme()) && intent.getDataString() != null) {
+                mImportFilename = intent.getData().getPath();
+            }
+            showImportKeysDialog();
+        } else if (ACTION_IMPORT_FROM_QR_CODE.equals(action)) {
+            importFromQrCode();
+        } else if (ACTION_IMPORT_FROM_NFC.equals(action)) {
+
+        }
+    }
+
+    private void importFromQrCode() {
+        new IntentIntegrator(this).initiateScan();
+    }
+
+    /**
+     * Show to dialog from where to import keys
+     */
+    public void showImportKeysDialog() {
+        // Message is received after file is selected
+        Handler returnHandler = new Handler() {
+            @Override
+            public void handleMessage(Message message) {
+                if (message.what == FileDialogFragment.MESSAGE_OKAY) {
+                    Log.d(Constants.TAG, "FileDialogFragment.MESSAGE_OKAY");
+                    Bundle data = message.getData();
+                    mImportFilename = data.getString(FileDialogFragment.MESSAGE_DATA_FILENAME);
+
+                    mDeleteAfterImport = data.getBoolean(FileDialogFragment.MESSAGE_DATA_CHECKED);
+                    importKeys();
+                }
+            }
+        };
+
+        // Create a new Messenger for the communication back
+        final Messenger messenger = new Messenger(returnHandler);
+
+        DialogFragmentWorkaround.INTERFACE.runnableRunDelayed(new Runnable() {
+            public void run() {
+                mFileDialog = FileDialogFragment.newInstance(messenger,
+                        getString(R.string.title_importKeys),
+                        getString(R.string.specifyFileToImportFrom), mImportFilename, null,
+                        Id.request.filename);
+
+                mFileDialog.show(getSupportFragmentManager(), "fileDialog");
+            }
+        });
+    }
+
+    /**
+     * Import keys with mImportData
+     */
+    public void importKeys() {
+        Log.d(Constants.TAG, "importKeys started");
+
+        // Send all information needed to service to import key in other thread
+        Intent intent = new Intent(this, ApgIntentService.class);
+
+        intent.putExtra(ApgIntentService.EXTRA_ACTION, ApgIntentService.ACTION_IMPORT_KEY);
+
+        // fill values for this action
+        Bundle data = new Bundle();
+
+        // TODO
+        data.putInt(ApgIntentService.IMPORT_KEY_TYPE, Id.type.secret_key);
+
+        if (mImportData != null) {
+            data.putInt(ApgIntentService.TARGET, ApgIntentService.TARGET_BYTES);
+            data.putByteArray(ApgIntentService.IMPORT_BYTES, mImportData.getBytes());
+        } else {
+            data.putInt(ApgIntentService.TARGET, ApgIntentService.TARGET_FILE);
+            data.putString(ApgIntentService.IMPORT_FILENAME, mImportFilename);
+        }
+
+        intent.putExtra(ApgIntentService.EXTRA_DATA, data);
+
+        // Message is received after importing is done in ApgService
+        ApgIntentServiceHandler saveHandler = new ApgIntentServiceHandler(this,
+                R.string.progress_importing, ProgressDialog.STYLE_HORIZONTAL) {
+            public void handleMessage(Message message) {
+                // handle messages by standard ApgHandler first
+                super.handleMessage(message);
+
+                if (message.arg1 == ApgIntentServiceHandler.MESSAGE_OKAY) {
+                    // get returned data bundle
+                    Bundle returnData = message.getData();
+
+                    int added = returnData.getInt(ApgIntentService.RESULT_IMPORT_ADDED);
+                    int updated = returnData.getInt(ApgIntentService.RESULT_IMPORT_UPDATED);
+                    int bad = returnData.getInt(ApgIntentService.RESULT_IMPORT_BAD);
+                    String toastMessage;
+                    if (added > 0 && updated > 0) {
+                        toastMessage = getString(R.string.keysAddedAndUpdated, added, updated);
+                    } else if (added > 0) {
+                        toastMessage = getString(R.string.keysAdded, added);
+                    } else if (updated > 0) {
+                        toastMessage = getString(R.string.keysUpdated, updated);
+                    } else {
+                        toastMessage = getString(R.string.noKeysAddedOrUpdated);
+                    }
+                    Toast.makeText(ImportKeysActivity.this, toastMessage, Toast.LENGTH_SHORT)
+                            .show();
+                    if (bad > 0) {
+                        AlertDialog.Builder alert = new AlertDialog.Builder(ImportKeysActivity.this);
+
+                        alert.setIcon(android.R.drawable.ic_dialog_alert);
+                        alert.setTitle(R.string.warning);
+                        alert.setMessage(ImportKeysActivity.this.getString(
+                                R.string.badKeysEncountered, bad));
+
+                        alert.setPositiveButton(android.R.string.ok,
+                                new DialogInterface.OnClickListener() {
+                                    public void onClick(DialogInterface dialog, int id) {
+                                        dialog.cancel();
+                                    }
+                                });
+                        alert.setCancelable(true);
+                        alert.create().show();
+                    } else if (mDeleteAfterImport) {
+                        // everything went well, so now delete, if that was turned on
+                        DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment
+                                .newInstance(mImportFilename);
+                        deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog");
+                    }
+                }
+            };
+        };
+
+        // Create a new Messenger for the communication back
+        Messenger messenger = new Messenger(saveHandler);
+        intent.putExtra(ApgIntentService.EXTRA_MESSENGER, messenger);
+
+        // show progress dialog
+        saveHandler.showProgressDialog(this);
+
+        // start service with intent
+        startService(intent);
+    }
+
+    // private void importAndSignOld(final long keyId, final String expectedFingerprint) {
+    // if (expectedFingerprint != null && expectedFingerprint.length() > 0) {
+    //
+    // Thread t = new Thread() {
+    // @Override
+    // public void run() {
+    // try {
+    // // TODO: display some sort of spinner here while the user waits
+    //
+    // // TODO: there should be only 1
+    // HkpKeyServer server = new HkpKeyServer(mPreferences.getKeyServers()[0]);
+    // String encodedKey = server.get(keyId);
+    //
+    // PGPKeyRing keyring = PGPHelper.decodeKeyRing(new ByteArrayInputStream(
+    // encodedKey.getBytes()));
+    // if (keyring != null && keyring instanceof PGPPublicKeyRing) {
+    // PGPPublicKeyRing publicKeyRing = (PGPPublicKeyRing) keyring;
+    //
+    // // make sure the fingerprints match before we cache this thing
+    // String actualFingerprint = PGPHelper.convertToHex(publicKeyRing
+    // .getPublicKey().getFingerprint());
+    // if (expectedFingerprint.equals(actualFingerprint)) {
+    // // store the signed key in our local cache
+    // int retval = PGPMain.storeKeyRingInCache(publicKeyRing);
+    // if (retval != Id.return_value.ok
+    // && retval != Id.return_value.updated) {
+    // status.putString(EXTRA_ERROR,
+    // "Failed to store signed key in local cache");
+    // } else {
+    // Intent intent = new Intent(ImportFromQRCodeActivity.this,
+    // SignKeyActivity.class);
+    // intent.putExtra(EXTRA_KEY_ID, keyId);
+    // startActivityForResult(intent, Id.request.sign_key);
+    // }
+    // } else {
+    // status.putString(
+    // EXTRA_ERROR,
+    // "Scanned fingerprint does NOT match the fingerprint of the received key.  You shouldnt trust this key.");
+    // }
+    // }
+    // } catch (QueryException e) {
+    // Log.e(TAG, "Failed to query KeyServer", e);
+    // status.putString(EXTRA_ERROR, "Failed to query KeyServer");
+    // status.putInt(Constants.extras.STATUS, Id.message.done);
+    // } catch (IOException e) {
+    // Log.e(TAG, "Failed to query KeyServer", e);
+    // status.putString(EXTRA_ERROR, "Failed to query KeyServer");
+    // status.putInt(Constants.extras.STATUS, Id.message.done);
+    // }
+    // }
+    // };
+    //
+    // t.setName("KeyExchange Download Thread");
+    // t.setDaemon(true);
+    // t.start();
+    // }
+    // }
+
+    public void scanAgainOnClick(View view) {
+        new IntentIntegrator(this).initiateScan();
+    }
+
+    public void finishOnClick(View view) {
+        finish();
+    }
+
+    public void importOnClick(View view) {
+        Log.d(Constants.TAG, "import key started");
+
+        if (mScannedContent != null) {
+            // Send all information needed to service to import key in other thread
+            Intent intent = new Intent(this, ApgIntentService.class);
+
+            intent.putExtra(ApgIntentService.EXTRA_ACTION, ApgIntentService.ACTION_IMPORT_KEY);
+
+            // fill values for this action
+            Bundle data = new Bundle();
+
+            data.putInt(ApgIntentService.IMPORT_KEY_TYPE, Id.type.public_key);
+
+            data.putInt(ApgIntentService.TARGET, ApgIntentService.TARGET_BYTES);
+            data.putByteArray(ApgIntentService.IMPORT_BYTES, mScannedContent.getBytes());
+
+            intent.putExtra(ApgIntentService.EXTRA_DATA, data);
+
+            // Message is received after importing is done in ApgService
+            ApgIntentServiceHandler saveHandler = new ApgIntentServiceHandler(this,
+                    R.string.progress_importing, ProgressDialog.STYLE_HORIZONTAL) {
+                public void handleMessage(Message message) {
+                    // handle messages by standard ApgHandler first
+                    super.handleMessage(message);
+
+                    if (message.arg1 == ApgIntentServiceHandler.MESSAGE_OKAY) {
+                        // get returned data bundle
+                        Bundle returnData = message.getData();
+
+                        int added = returnData.getInt(ApgIntentService.RESULT_IMPORT_ADDED);
+                        int updated = returnData.getInt(ApgIntentService.RESULT_IMPORT_UPDATED);
+                        int bad = returnData.getInt(ApgIntentService.RESULT_IMPORT_BAD);
+                        String toastMessage;
+                        if (added > 0 && updated > 0) {
+                            toastMessage = getString(R.string.keysAddedAndUpdated, added, updated);
+                        } else if (added > 0) {
+                            toastMessage = getString(R.string.keysAdded, added);
+                        } else if (updated > 0) {
+                            toastMessage = getString(R.string.keysUpdated, updated);
+                        } else {
+                            toastMessage = getString(R.string.noKeysAddedOrUpdated);
+                        }
+                        Toast.makeText(ImportKeysActivity.this, toastMessage, Toast.LENGTH_SHORT)
+                                .show();
+                        if (bad > 0) {
+                            AlertDialog.Builder alert = new AlertDialog.Builder(
+                                    ImportKeysActivity.this);
+
+                            alert.setIcon(android.R.drawable.ic_dialog_alert);
+                            alert.setTitle(R.string.warning);
+                            alert.setMessage(ImportKeysActivity.this.getString(
+                                    R.string.badKeysEncountered, bad));
+
+                            alert.setPositiveButton(android.R.string.ok,
+                                    new DialogInterface.OnClickListener() {
+                                        public void onClick(DialogInterface dialog, int id) {
+                                            dialog.cancel();
+                                        }
+                                    });
+                            alert.setCancelable(true);
+                            alert.create().show();
+                        }
+                    }
+                };
+            };
+
+            // Create a new Messenger for the communication back
+            Messenger messenger = new Messenger(saveHandler);
+            intent.putExtra(ApgIntentService.EXTRA_MESSENGER, messenger);
+
+            // show progress dialog
+            saveHandler.showProgressDialog(this);
+
+            // start service with intent
+            startService(intent);
+        }
+    }
+
+    public void signAndUploadOnClick(View view) {
+        // first, import!
+        importOnClick(view);
+
+        // TODO: implement sign and upload!
+        Toast.makeText(ImportKeysActivity.this, "Not implemented right now!", Toast.LENGTH_SHORT)
+                .show();
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+        case Id.request.filename: {
+            if (resultCode == RESULT_OK && data != null) {
+                try {
+                    String path = data.getData().getPath();
+                    Log.d(Constants.TAG, "path=" + path);
+
+                    // set filename used in export/import dialogs
+                    mFileDialog.setFilename(path);
+                } catch (NullPointerException e) {
+                    Log.e(Constants.TAG, "Nullpointer while retrieving path!", e);
+                }
+            }
+            return;
+        }
+        case IntentIntegrator.REQUEST_CODE: {
+            IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode,
+                    data);
+            if (scanResult != null && scanResult.getFormatName() != null) {
+
+                mScannedContent = scanResult.getContents();
+
+                mContentView.setText(mScannedContent);
+                // String[] bits = scanResult.getContents().split(",");
+                // if (bits.length != 2) {
+                // return; // dont know how to handle this. Not a valid code
+                // }
+                //
+                // long keyId = Long.parseLong(bits[0]);
+                // String expectedFingerprint = bits[1];
+
+                // importAndSign(keyId, expectedFingerprint);
+            }
+
+            break;
+        }
+
+        default: {
+            super.onActivityResult(requestCode, resultCode, data);
+        }
+        }
+    }
+}