use utf-8 in barcodes
This commit is contained in:
Daniel Gultsch
parent
0f97b44e9f
commit
b682aeb252
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@ -35,174 +35,175 @@ import rocks.xmpp.addr.Jid;
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public class BarcodeProvider extends ContentProvider implements ServiceConnection {
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private static final String AUTHORITY = ".barcodes";
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private static final String AUTHORITY = ".barcodes";
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private final Object lock = new Object();
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private final Object lock = new Object();
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private XmppConnectionService mXmppConnectionService;
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private boolean mBindingInProcess = false;
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private XmppConnectionService mXmppConnectionService;
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private boolean mBindingInProcess = false;
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@Override
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public boolean onCreate() {
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File barcodeDirectory = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/");
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if (barcodeDirectory.exists() && barcodeDirectory.isDirectory()) {
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for (File file : barcodeDirectory.listFiles()) {
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if (file.isFile() && !file.isHidden()) {
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Log.d(Config.LOGTAG, "deleting old barcode file " + file.getAbsolutePath());
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file.delete();
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}
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}
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}
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return true;
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}
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public static Uri getUriForAccount(Context context, Account account) {
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final String packageId = context.getPackageName();
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return Uri.parse("content://" + packageId + AUTHORITY + "/" + account.getJid().asBareJid() + ".png");
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}
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@Nullable
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@Override
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public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
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return null;
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}
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public static Bitmap create2dBarcodeBitmap(String input, int size) {
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try {
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final QRCodeWriter barcodeWriter = new QRCodeWriter();
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final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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final BitMatrix result = barcodeWriter.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
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final int width = result.getWidth();
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final int height = result.getHeight();
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final int[] pixels = new int[width * height];
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for (int y = 0; y < height; y++) {
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final int offset = y * width;
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for (int x = 0; x < width; x++) {
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pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.WHITE;
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}
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}
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final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
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return bitmap;
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} catch (final Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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@Nullable
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@Override
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public String getType(Uri uri) {
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return "image/png";
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}
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@Override
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public boolean onCreate() {
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File barcodeDirectory = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/");
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if (barcodeDirectory.exists() && barcodeDirectory.isDirectory()) {
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for (File file : barcodeDirectory.listFiles()) {
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if (file.isFile() && !file.isHidden()) {
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Log.d(Config.LOGTAG, "deleting old barcode file " + file.getAbsolutePath());
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file.delete();
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}
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}
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}
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return true;
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}
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@Nullable
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@Override
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public Uri insert(Uri uri, ContentValues values) {
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return null;
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}
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@Nullable
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@Override
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public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
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return null;
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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return 0;
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}
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@Nullable
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@Override
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public String getType(Uri uri) {
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return "image/png";
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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return 0;
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}
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@Nullable
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@Override
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public Uri insert(Uri uri, ContentValues values) {
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return null;
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}
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@Override
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public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
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return openFile(uri, mode, null);
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}
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@Override
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public int delete(Uri uri, String selection, String[] selectionArgs) {
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return 0;
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}
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@Override
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public ParcelFileDescriptor openFile(Uri uri, String mode, CancellationSignal signal) throws FileNotFoundException {
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Log.d(Config.LOGTAG, "opening file with uri (normal): " + uri.toString());
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String path = uri.getPath();
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if (path != null && path.endsWith(".png") && path.length() >= 5) {
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String jid = path.substring(1).substring(0, path.length() - 4);
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Log.d(Config.LOGTAG, "account:" + jid);
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if (connectAndWait()) {
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Log.d(Config.LOGTAG, "connected to background service");
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try {
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Account account = mXmppConnectionService.findAccountByJid(Jid.of(jid));
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if (account != null) {
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String shareableUri = account.getShareableUri();
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String hash = CryptoHelper.getFingerprint(shareableUri);
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File file = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/" + hash);
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if (!file.exists()) {
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file.getParentFile().mkdirs();
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file.createNewFile();
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Bitmap bitmap = create2dBarcodeBitmap(account.getShareableUri(), 1024);
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OutputStream outputStream = new FileOutputStream(file);
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
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outputStream.close();
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outputStream.flush();
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}
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return ParcelFileDescriptor.open(file,ParcelFileDescriptor.MODE_READ_ONLY);
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}
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} catch (Exception e) {
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throw new FileNotFoundException();
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}
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}
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}
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throw new FileNotFoundException();
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}
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@Override
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public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
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return 0;
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}
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private boolean connectAndWait() {
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Intent intent = new Intent(getContext(), XmppConnectionService.class);
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intent.setAction(this.getClass().getSimpleName());
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Context context = getContext();
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if (context != null) {
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synchronized (this) {
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if (mXmppConnectionService == null && !mBindingInProcess) {
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Log.d(Config.LOGTAG,"calling to bind service");
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context.startService(intent);
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context.bindService(intent, this, Context.BIND_AUTO_CREATE);
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this.mBindingInProcess = true;
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}
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}
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try {
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waitForService();
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return true;
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} catch (InterruptedException e) {
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return false;
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}
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} else {
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Log.d(Config.LOGTAG, "context was null");
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return false;
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}
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}
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@Override
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public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
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return openFile(uri, mode, null);
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}
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@Override
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public void onServiceConnected(ComponentName name, IBinder service) {
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synchronized (this) {
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XmppConnectionService.XmppConnectionBinder binder = (XmppConnectionService.XmppConnectionBinder) service;
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mXmppConnectionService = binder.getService();
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mBindingInProcess = false;
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synchronized (this.lock) {
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lock.notifyAll();
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}
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}
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}
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@Override
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public ParcelFileDescriptor openFile(Uri uri, String mode, CancellationSignal signal) throws FileNotFoundException {
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Log.d(Config.LOGTAG, "opening file with uri (normal): " + uri.toString());
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String path = uri.getPath();
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if (path != null && path.endsWith(".png") && path.length() >= 5) {
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String jid = path.substring(1).substring(0, path.length() - 4);
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Log.d(Config.LOGTAG, "account:" + jid);
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if (connectAndWait()) {
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Log.d(Config.LOGTAG, "connected to background service");
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try {
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Account account = mXmppConnectionService.findAccountByJid(Jid.of(jid));
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if (account != null) {
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String shareableUri = account.getShareableUri();
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String hash = CryptoHelper.getFingerprint(shareableUri);
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File file = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/" + hash);
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if (!file.exists()) {
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file.getParentFile().mkdirs();
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file.createNewFile();
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Bitmap bitmap = create2dBarcodeBitmap(account.getShareableUri(), 1024);
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OutputStream outputStream = new FileOutputStream(file);
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
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outputStream.close();
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outputStream.flush();
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}
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return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
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}
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} catch (Exception e) {
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throw new FileNotFoundException();
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}
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}
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}
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throw new FileNotFoundException();
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}
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@Override
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public void onServiceDisconnected(ComponentName name) {
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synchronized (this) {
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mXmppConnectionService = null;
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}
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}
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private boolean connectAndWait() {
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Intent intent = new Intent(getContext(), XmppConnectionService.class);
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intent.setAction(this.getClass().getSimpleName());
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Context context = getContext();
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if (context != null) {
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synchronized (this) {
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if (mXmppConnectionService == null && !mBindingInProcess) {
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Log.d(Config.LOGTAG, "calling to bind service");
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context.startService(intent);
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context.bindService(intent, this, Context.BIND_AUTO_CREATE);
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this.mBindingInProcess = true;
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}
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}
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try {
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waitForService();
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return true;
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} catch (InterruptedException e) {
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return false;
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}
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} else {
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Log.d(Config.LOGTAG, "context was null");
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return false;
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}
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}
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private void waitForService() throws InterruptedException {
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if (mXmppConnectionService == null) {
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synchronized (this.lock) {
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lock.wait();
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}
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} else {
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Log.d(Config.LOGTAG,"not waiting for service because already initialized");
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}
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}
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@Override
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public void onServiceConnected(ComponentName name, IBinder service) {
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synchronized (this) {
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XmppConnectionService.XmppConnectionBinder binder = (XmppConnectionService.XmppConnectionBinder) service;
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mXmppConnectionService = binder.getService();
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mBindingInProcess = false;
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synchronized (this.lock) {
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lock.notifyAll();
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}
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}
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}
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public static Uri getUriForAccount(Context context, Account account) {
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final String packageId = context.getPackageName();
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return Uri.parse("content://" + packageId + AUTHORITY + "/" + account.getJid().asBareJid() + ".png");
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}
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@Override
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public void onServiceDisconnected(ComponentName name) {
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synchronized (this) {
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mXmppConnectionService = null;
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}
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}
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public static Bitmap create2dBarcodeBitmap(String input, int size) {
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try {
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final QRCodeWriter barcodeWriter = new QRCodeWriter();
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final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
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final BitMatrix result = barcodeWriter.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
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final int width = result.getWidth();
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final int height = result.getHeight();
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final int[] pixels = new int[width * height];
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for (int y = 0; y < height; y++) {
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final int offset = y * width;
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for (int x = 0; x < width; x++) {
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pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.WHITE;
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}
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}
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final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
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return bitmap;
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} catch (final Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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private void waitForService() throws InterruptedException {
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if (mXmppConnectionService == null) {
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synchronized (this.lock) {
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lock.wait();
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}
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} else {
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Log.d(Config.LOGTAG, "not waiting for service because already initialized");
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}
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}
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}
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