Java tutorial
/* * Copyright (C) 2012 Dominik Schrmann <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 id.nci.stm_9; import java.util.ArrayList; import java.util.List; //import org.sufficientlysecure.keychain.Constants; import id.nci.stm_9.R; import id.nci.stm_9.ActionBarHelper; import id.nci.stm_9.KeychainIntentService; import id.nci.stm_9.KeychainIntentServiceHandler; import id.nci.stm_9.ImportKeysListEntry; //import id.nci.stm_9.DeleteFileDialogFragment; import id.nci.stm_9.FileDialogFragment; import id.nci.stm_9.Log; //import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.Context; //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.Fragment; import android.support.v4.app.FragmentTransaction; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Toast; import com.actionbarsherlock.app.ActionBar; import com.actionbarsherlock.app.ActionBar.OnNavigationListener; import com.actionbarsherlock.app.SherlockFragmentActivity; import com.actionbarsherlock.view.MenuItem; public class ImportKeysActivity extends SherlockFragmentActivity implements OnNavigationListener { public static final String ACTION_IMPORT_KEY = "id.nci.stm_9" + ".action." + "IMPORT_KEY"; // public static final String ACTION_IMPORT_KEY_FROM_QR_CODE = "id.nci.stm_9" + ".action." // + "IMPORT_KEY_FROM_QR_CODE"; // // Actions for internal use only: public static final String ACTION_IMPORT_KEY_FROM_FILE = "id.nci.stm_9" + ".action." + "IMPORT_KEY_FROM_FILE"; // public static final String ACTION_IMPORT_KEY_FROM_NFC = "id.nci.stm_9" + ".action." // + "IMPORT_KEY_FROM_NFC"; // only used by IMPORT public static final String EXTRA_KEY_BYTES = "key_bytes"; // TODO: import keys from server // public static final String EXTRA_KEY_ID = "keyId"; protected boolean mDeleteAfterImport = false; FileDialogFragment mFileDialog; ImportKeysListFragment mListFragment; OnNavigationListener mOnNavigationListener; String[] mNavigationStrings; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.import_keys); // set actionbar without home button if called from another app ActionBarHelper.setBackButton(this); // set drop down navigation mNavigationStrings = getResources().getStringArray(R.array.import_action_list); Context context = getSupportActionBar().getThemedContext(); ArrayAdapter<CharSequence> list = ArrayAdapter.createFromResource(context, R.array.import_action_list, R.layout.sherlock_spinner_item); list.setDropDownViewResource(R.layout.sherlock_spinner_dropdown_item); getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); getSupportActionBar().setListNavigationCallbacks(list, this); getSupportActionBar().setDisplayShowTitleEnabled(false); handleActions(savedInstanceState, getIntent()); } protected void handleActions(Bundle savedInstanceState, 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 Keychain (see AndroidManifest.xml) // override action to delegate it to Keychain's ACTION_IMPORT_KEY action = ACTION_IMPORT_KEY; } /** * Keychain's own Actions */ if (ACTION_IMPORT_KEY.equals(action)) { if ("file".equals(intent.getScheme()) && intent.getDataString() != null) { String importFilename = intent.getData().getPath(); // display selected filename getSupportActionBar().setSelectedNavigationItem(0); Bundle args = new Bundle(); args.putString(ImportKeysFileFragment.ARG_PATH, importFilename); loadFragment(ImportKeysFileFragment.class, args, mNavigationStrings[0]); // directly load data startListFragment(savedInstanceState, null, importFilename); } else if (extras.containsKey(EXTRA_KEY_BYTES)) { byte[] importData = intent.getByteArrayExtra(EXTRA_KEY_BYTES); // directly load data startListFragment(savedInstanceState, importData, null); } } else { // Internal actions startListFragment(savedInstanceState, null, null); if (ACTION_IMPORT_KEY_FROM_FILE.equals(action)) { getSupportActionBar().setSelectedNavigationItem(0); loadFragment(ImportKeysFileFragment.class, null, mNavigationStrings[0]); } // } else if (ACTION_IMPORT_KEY_FROM_QR_CODE.equals(action)) { // getSupportActionBar().setSelectedNavigationItem(2); // loadFragment(ImportKeysQrCodeFragment.class, null, mNavigationStrings[2]); // } else if (ACTION_IMPORT_KEY_FROM_NFC.equals(action)) { // getSupportActionBar().setSelectedNavigationItem(3); // loadFragment(ImportKeysNFCFragment.class, null, mNavigationStrings[3]); // } } } private void startListFragment(Bundle savedInstanceState, byte[] bytes, String filename) { // Check that the activity is using the layout version with // the fragment_container FrameLayout if (findViewById(R.id.import_keys_list_container) != null) { // However, if we're being restored from a previous state, // then we don't need to do anything and should return or else // we could end up with overlapping fragments. if (savedInstanceState != null) { return; } // Create an instance of the fragment mListFragment = ImportKeysListFragment.newInstance(bytes, filename); // Add the fragment to the 'fragment_container' FrameLayout // NOTE: We use commitAllowingStateLoss() to prevent weird crashes! getSupportFragmentManager().beginTransaction().replace(R.id.import_keys_list_container, mListFragment) .commitAllowingStateLoss(); // do it immediately! getSupportFragmentManager().executePendingTransactions(); } } @Override public boolean onNavigationItemSelected(int itemPosition, long itemId) { // Create new fragment from our own Fragment class switch (itemPosition) { case 0: loadFragment(ImportKeysFileFragment.class, null, mNavigationStrings[itemPosition]); break; case 1: loadFragment(ImportKeysServerFragment.class, null, mNavigationStrings[itemPosition]); break; // case 2: // loadFragment(ImportKeysQrCodeFragment.class, null, mNavigationStrings[itemPosition]); // break; // case 3: // loadFragment(ImportKeysClipboardFragment.class, null, mNavigationStrings[itemPosition]); // break; // case 4: // loadFragment(ImportKeysNFCFragment.class, null, mNavigationStrings[itemPosition]); // break; default: break; } return true; } private void loadFragment(Class<?> clss, Bundle args, String tag) { Fragment fragment = Fragment.instantiate(this, clss.getName(), args); FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); // Replace whatever is in the fragment container with this fragment // and give the fragment a tag name equal to the string at the position selected ft.replace(R.id.import_navigation_fragment, fragment, tag); // Apply changes ft.commit(); } public void loadCallback(byte[] importData, String importFilename) { mListFragment.loadNew(importData, importFilename); } @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 intent = new Intent(this, MainMenu.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(intent); return true; default: return super.onOptionsItemSelected(item); } } // 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.convertFingerprintToHex(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(); // } // } /** * Import keys with mImportData */ public void importKeys() { if (mListFragment.getKeyBytes() != null || mListFragment.getImportFilename() != null) { Log.d("stm-9", "importKeys started"); // Send all information needed to service to import key in other thread Intent intent = new Intent(this, KeychainIntentService.class); intent.setAction(KeychainIntentService.ACTION_IMPORT_KEYRING); // fill values for this action Bundle data = new Bundle(); // get selected key ids List<ImportKeysListEntry> listEntries = mListFragment.getData(); ArrayList<Long> selectedKeyIds = new ArrayList<Long>(); for (ImportKeysListEntry entry : listEntries) { if (entry.isSelected()) { selectedKeyIds.add(entry.keyId); } } data.putSerializable(KeychainIntentService.IMPORT_KEY_LIST, selectedKeyIds); if (mListFragment.getKeyBytes() != null) { data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_BYTES); data.putByteArray(KeychainIntentService.IMPORT_BYTES, mListFragment.getKeyBytes()); } else { data.putInt(KeychainIntentService.TARGET, KeychainIntentService.TARGET_FILE); data.putString(KeychainIntentService.IMPORT_FILENAME, mListFragment.getImportFilename()); } intent.putExtra(KeychainIntentService.EXTRA_DATA, data); // Message is received after importing is done in ApgService KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(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 == KeychainIntentServiceHandler.MESSAGE_OKAY) { // get returned data bundle Bundle returnData = message.getData(); int added = returnData.getInt(KeychainIntentService.RESULT_IMPORT_ADDED); int updated = returnData.getInt(KeychainIntentService.RESULT_IMPORT_UPDATED); // int bad = returnData.getInt(KeychainIntentService.RESULT_IMPORT_BAD); String toastMessage; if (added > 0 && updated > 0) { toastMessage = getString(R.string.keys_added_and_updated, added, updated); } else if (added > 0) { toastMessage = getString(R.string.keys_added, added); } else if (updated > 0) { toastMessage = getString(R.string.keys_updated, updated); } else { toastMessage = getString(R.string.no_keys_added_or_updated); } 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.bad_keys_encountered, 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(mListFragment.getImportFilename()); // deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog"); // } } }; }; // Create a new Messenger for the communication back Messenger messenger = new Messenger(saveHandler); intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger); // show progress dialog saveHandler.showProgressDialog(this); // start service with intent startService(intent); } else { Toast.makeText(this, R.string.error_nothing_import, Toast.LENGTH_LONG).show(); } } public void importOnClick(View view) { importKeys(); } 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(); } }