cheogram/src/main/java/eu/siacs/conversations/persistance/FileBackend.java

1637 lines
64 KiB
Java

package eu.siacs.conversations.persistance;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.pdf.PdfRenderer;
import android.media.MediaMetadataRetriever;
import android.media.MediaScannerConnection;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.ParcelFileDescriptor;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.system.Os;
import android.system.StructStat;
import android.util.Base64;
import android.util.Base64OutputStream;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.LruCache;
import androidx.annotation.RequiresApi;
import androidx.annotation.StringRes;
import androidx.core.content.FileProvider;
import androidx.exifinterface.media.ExifInterface;
import com.google.common.base.Strings;
import com.google.common.io.ByteStreams;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileDescriptor;
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.net.ServerSocket;
import java.net.Socket;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.UUID;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.DownloadableFile;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.services.AttachFileToConversationRunnable;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.ui.adapter.MediaAdapter;
import eu.siacs.conversations.ui.util.Attachment;
import eu.siacs.conversations.utils.Compatibility;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.FileUtils;
import eu.siacs.conversations.utils.FileWriterException;
import eu.siacs.conversations.utils.MimeUtils;
import eu.siacs.conversations.xmpp.pep.Avatar;
public class FileBackend {
private static final Object THUMBNAIL_LOCK = new Object();
private static final SimpleDateFormat IMAGE_DATE_FORMAT =
new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US);
private static final String FILE_PROVIDER = ".files";
private static final float IGNORE_PADDING = 0.15f;
private final XmppConnectionService mXmppConnectionService;
public FileBackend(XmppConnectionService service) {
this.mXmppConnectionService = service;
}
public static long getFileSize(Context context, Uri uri) {
try {
final Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
long size = cursor.getLong(cursor.getColumnIndex(OpenableColumns.SIZE));
cursor.close();
return size;
} else {
return -1;
}
} catch (Exception e) {
return -1;
}
}
public static boolean allFilesUnderSize(
Context context, List<Attachment> attachments, long max) {
final boolean compressVideo =
!AttachFileToConversationRunnable.getVideoCompression(context)
.equals("uncompressed");
if (max <= 0) {
Log.d(Config.LOGTAG, "server did not report max file size for http upload");
return true; // exception to be compatible with HTTP Upload < v0.2
}
for (Attachment attachment : attachments) {
if (attachment.getType() != Attachment.Type.FILE) {
continue;
}
String mime = attachment.getMime();
if (mime != null && mime.startsWith("video/") && compressVideo) {
try {
Dimensions dimensions =
FileBackend.getVideoDimensions(context, attachment.getUri());
if (dimensions.getMin() > 720) {
Log.d(
Config.LOGTAG,
"do not consider video file with min width larger than 720 for size check");
continue;
}
} catch (NotAVideoFile notAVideoFile) {
// ignore and fall through
}
}
if (FileBackend.getFileSize(context, attachment.getUri()) > max) {
Log.d(
Config.LOGTAG,
"not all files are under "
+ max
+ " bytes. suggesting falling back to jingle");
return false;
}
}
return true;
}
public static File getBackupDirectory(final Context context) {
final File conversationsDownloadDirectory =
new File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS),
context.getString(R.string.app_name));
return new File(conversationsDownloadDirectory, "Backup");
}
public static File getLegacyBackupDirectory(final String app) {
final File appDirectory = new File(Environment.getExternalStorageDirectory(), app);
return new File(appDirectory, "Backup");
}
private static Bitmap rotate(final Bitmap bitmap, final int degree) {
if (degree == 0) {
return bitmap;
}
final int w = bitmap.getWidth();
final int h = bitmap.getHeight();
final Matrix matrix = new Matrix();
matrix.postRotate(degree);
final Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
if (!bitmap.isRecycled()) {
bitmap.recycle();
}
return result;
}
public static boolean isPathBlacklisted(String path) {
final String androidDataPath =
Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/";
return path.startsWith(androidDataPath);
}
private static Paint createAntiAliasingPaint() {
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
return paint;
}
public static Uri getUriForUri(Context context, Uri uri) {
if ("file".equals(uri.getScheme())) {
return getUriForFile(context, new File(uri.getPath()));
} else {
return uri;
}
}
public static Uri getUriForFile(Context context, File file) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N || Config.ONLY_INTERNAL_STORAGE) {
try {
return FileProvider.getUriForFile(context, getAuthority(context), file);
} catch (IllegalArgumentException e) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
throw new SecurityException(e);
} else {
return Uri.fromFile(file);
}
}
} else {
return Uri.fromFile(file);
}
}
public static String getAuthority(Context context) {
return context.getPackageName() + FILE_PROVIDER;
}
private static boolean hasAlpha(final Bitmap bitmap) {
final int w = bitmap.getWidth();
final int h = bitmap.getHeight();
final int yStep = Math.max(1, w / 100);
final int xStep = Math.max(1, h / 100);
for (int x = 0; x < w; x += xStep) {
for (int y = 0; y < h; y += yStep) {
if (Color.alpha(bitmap.getPixel(x, y)) < 255) {
return true;
}
}
}
return false;
}
private static int calcSampleSize(File image, int size) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(image.getAbsolutePath(), options);
return calcSampleSize(options, size);
}
private static int calcSampleSize(BitmapFactory.Options options, int size) {
int height = options.outHeight;
int width = options.outWidth;
int inSampleSize = 1;
if (height > size || width > size) {
int halfHeight = height / 2;
int halfWidth = width / 2;
while ((halfHeight / inSampleSize) > size && (halfWidth / inSampleSize) > size) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
private static Dimensions getVideoDimensions(Context context, Uri uri) throws NotAVideoFile {
MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
try {
mediaMetadataRetriever.setDataSource(context, uri);
} catch (RuntimeException e) {
throw new NotAVideoFile(e);
}
return getVideoDimensions(mediaMetadataRetriever);
}
private static Dimensions getVideoDimensionsOfFrame(
MediaMetadataRetriever mediaMetadataRetriever) {
Bitmap bitmap = null;
try {
bitmap = mediaMetadataRetriever.getFrameAtTime();
return new Dimensions(bitmap.getHeight(), bitmap.getWidth());
} catch (Exception e) {
return null;
} finally {
if (bitmap != null) {
bitmap.recycle();
}
}
}
private static Dimensions getVideoDimensions(MediaMetadataRetriever metadataRetriever)
throws NotAVideoFile {
String hasVideo =
metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
if (hasVideo == null) {
throw new NotAVideoFile();
}
Dimensions dimensions = getVideoDimensionsOfFrame(metadataRetriever);
if (dimensions != null) {
return dimensions;
}
final int rotation = extractRotationFromMediaRetriever(metadataRetriever);
boolean rotated = rotation == 90 || rotation == 270;
int height;
try {
String h =
metadataRetriever.extractMetadata(
MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
height = Integer.parseInt(h);
} catch (Exception e) {
height = -1;
}
int width;
try {
String w =
metadataRetriever.extractMetadata(
MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
width = Integer.parseInt(w);
} catch (Exception e) {
width = -1;
}
metadataRetriever.release();
Log.d(Config.LOGTAG, "extracted video dims " + width + "x" + height);
return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
}
private static int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
String r =
metadataRetriever.extractMetadata(
MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
try {
return Integer.parseInt(r);
} catch (Exception e) {
return 0;
}
}
public static void close(final Closeable stream) {
if (stream != null) {
try {
stream.close();
} catch (Exception e) {
Log.d(Config.LOGTAG, "unable to close stream", e);
}
}
}
public static void close(final Socket socket) {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
Log.d(Config.LOGTAG, "unable to close socket", e);
}
}
}
public static void close(final ServerSocket socket) {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
Log.d(Config.LOGTAG, "unable to close server socket", e);
}
}
}
public static boolean weOwnFile(final Uri uri) {
if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
return false;
} else {
return weOwnFileLollipop(uri);
}
}
private static boolean weOwnFileLollipop(final Uri uri) {
try {
File file = new File(uri.getPath());
FileDescriptor fd =
ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)
.getFileDescriptor();
StructStat st = Os.fstat(fd);
return st.st_uid == android.os.Process.myUid();
} catch (FileNotFoundException e) {
return false;
} catch (Exception e) {
return true;
}
}
public static Uri getMediaUri(Context context, File file) {
final String filePath = file.getAbsolutePath();
final Cursor cursor;
try {
cursor =
context.getContentResolver()
.query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
new String[] {MediaStore.Images.Media._ID},
MediaStore.Images.Media.DATA + "=? ",
new String[] {filePath},
null);
} catch (SecurityException e) {
return null;
}
if (cursor != null && cursor.moveToFirst()) {
final int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));
cursor.close();
return Uri.withAppendedPath(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, String.valueOf(id));
} else {
return null;
}
}
public static void updateFileParams(Message message, String url, long size) {
final StringBuilder body = new StringBuilder();
body.append(url).append('|').append(size);
message.setBody(body.toString());
}
public Bitmap getPreviewForUri(Attachment attachment, int size, boolean cacheOnly) {
final String key = "attachment_" + attachment.getUuid().toString() + "_" + size;
final LruCache<String, Bitmap> cache = mXmppConnectionService.getBitmapCache();
Bitmap bitmap = cache.get(key);
if (bitmap != null || cacheOnly) {
return bitmap;
}
final String mime = attachment.getMime();
if ("application/pdf".equals(mime) && Compatibility.runsTwentyOne()) {
bitmap = cropCenterSquarePdf(attachment.getUri(), size);
drawOverlay(
bitmap,
paintOverlayBlackPdf(bitmap)
? R.drawable.open_pdf_black
: R.drawable.open_pdf_white,
0.75f);
} else if (mime != null && mime.startsWith("video/")) {
bitmap = cropCenterSquareVideo(attachment.getUri(), size);
drawOverlay(
bitmap,
paintOverlayBlack(bitmap)
? R.drawable.play_video_black
: R.drawable.play_video_white,
0.75f);
} else {
bitmap = cropCenterSquare(attachment.getUri(), size);
if (bitmap != null && "image/gif".equals(mime)) {
Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
drawOverlay(
withGifOverlay,
paintOverlayBlack(withGifOverlay)
? R.drawable.play_gif_black
: R.drawable.play_gif_white,
1.0f);
bitmap.recycle();
bitmap = withGifOverlay;
}
}
if (bitmap != null) {
cache.put(key, bitmap);
}
return bitmap;
}
public void updateMediaScanner(File file) {
updateMediaScanner(file, null);
}
public void updateMediaScanner(File file, final Runnable callback) {
MediaScannerConnection.scanFile(
mXmppConnectionService,
new String[] {file.getAbsolutePath()},
null,
new MediaScannerConnection.MediaScannerConnectionClient() {
@Override
public void onMediaScannerConnected() {}
@Override
public void onScanCompleted(String path, Uri uri) {
if (callback != null && file.getAbsolutePath().equals(path)) {
callback.run();
} else {
Log.d(Config.LOGTAG, "media scanner scanned wrong file");
if (callback != null) {
callback.run();
}
}
}
});
}
public boolean deleteFile(Message message) {
File file = getFile(message);
if (file.delete()) {
updateMediaScanner(file);
return true;
} else {
return false;
}
}
public DownloadableFile getFile(Message message) {
return getFile(message, true);
}
public DownloadableFile getFileForPath(String path) {
return getFileForPath(
path,
MimeUtils.guessMimeTypeFromExtension(MimeUtils.extractRelevantExtension(path)));
}
private DownloadableFile getFileForPath(final String path, final String mime) {
if (path.startsWith("/")) {
return new DownloadableFile(path);
} else {
return getLegacyFileForFilename(path, mime);
}
}
public DownloadableFile getLegacyFileForFilename(final String filename, final String mime) {
if (Strings.isNullOrEmpty(mime)) {
return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
} else if (mime.startsWith("image/")) {
return new DownloadableFile(getLegacyStorageLocation("Images"), filename);
} else if (mime.startsWith("video/")) {
return new DownloadableFile(getLegacyStorageLocation("Videos"), filename);
} else {
return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
}
}
public boolean isInternalFile(final File file) {
final File internalFile = getFileForPath(file.getName());
return file.getAbsolutePath().equals(internalFile.getAbsolutePath());
}
public DownloadableFile getFile(Message message, boolean decrypted) {
final boolean encrypted =
!decrypted
&& (message.getEncryption() == Message.ENCRYPTION_PGP
|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
String path = message.getRelativeFilePath();
if (path == null) {
path = message.getUuid();
}
final DownloadableFile file = getFileForPath(path, message.getMimeType());
if (encrypted) {
return new DownloadableFile(
mXmppConnectionService.getCacheDir(),
String.format("%s.%s", file.getName(), "pgp"));
} else {
return file;
}
}
public List<Attachment> convertToAttachments(List<DatabaseBackend.FilePath> relativeFilePaths) {
final List<Attachment> attachments = new ArrayList<>();
for (final DatabaseBackend.FilePath relativeFilePath : relativeFilePaths) {
final String mime =
MimeUtils.guessMimeTypeFromExtension(
MimeUtils.extractRelevantExtension(relativeFilePath.path));
final File file = getFileForPath(relativeFilePath.path, mime);
attachments.add(Attachment.of(relativeFilePath.uuid, file, mime));
}
return attachments;
}
private File getLegacyStorageLocation(final String type) {
if (Config.ONLY_INTERNAL_STORAGE) {
return new File(mXmppConnectionService.getFilesDir(), type);
} else {
final File appDirectory =
new File(
Environment.getExternalStorageDirectory(),
mXmppConnectionService.getString(R.string.app_name));
final File appMediaDirectory = new File(appDirectory, "Media");
final String locationName =
String.format(
"%s %s", mXmppConnectionService.getString(R.string.app_name), type);
return new File(appMediaDirectory, locationName);
}
}
private Bitmap resize(final Bitmap originalBitmap, int size) throws IOException {
int w = originalBitmap.getWidth();
int h = originalBitmap.getHeight();
if (w <= 0 || h <= 0) {
throw new IOException("Decoded bitmap reported bounds smaller 0");
} else if (Math.max(w, h) > size) {
int scalledW;
int scalledH;
if (w <= h) {
scalledW = Math.max((int) (w / ((double) h / size)), 1);
scalledH = size;
} else {
scalledW = size;
scalledH = Math.max((int) (h / ((double) w / size)), 1);
}
final Bitmap result =
Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
if (!originalBitmap.isRecycled()) {
originalBitmap.recycle();
}
return result;
} else {
return originalBitmap;
}
}
public boolean useImageAsIs(final Uri uri) {
final String path = getOriginalPath(uri);
if (path == null || isPathBlacklisted(path)) {
return false;
}
final File file = new File(path);
long size = file.length();
if (size == 0
|| size
>= mXmppConnectionService
.getResources()
.getInteger(R.integer.auto_accept_filesize)) {
return false;
}
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
try {
final InputStream inputStream =
mXmppConnectionService.getContentResolver().openInputStream(uri);
BitmapFactory.decodeStream(inputStream, null, options);
close(inputStream);
if (options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
return false;
}
return (options.outWidth <= Config.IMAGE_SIZE
&& options.outHeight <= Config.IMAGE_SIZE
&& options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
} catch (FileNotFoundException e) {
Log.d(Config.LOGTAG, "unable to get image dimensions", e);
return false;
}
}
public String getOriginalPath(Uri uri) {
return FileUtils.getPath(mXmppConnectionService, uri);
}
private void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
Log.d(
Config.LOGTAG,
"copy file (" + uri.toString() + ") to private storage " + file.getAbsolutePath());
file.getParentFile().mkdirs();
try {
file.createNewFile();
} catch (IOException e) {
throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
}
try (final OutputStream os = new FileOutputStream(file);
final InputStream is =
mXmppConnectionService.getContentResolver().openInputStream(uri)) {
if (is == null) {
throw new FileCopyException(R.string.error_file_not_found);
}
try {
ByteStreams.copy(is, os);
} catch (IOException e) {
throw new FileWriterException(file);
}
try {
os.flush();
} catch (IOException e) {
throw new FileWriterException(file);
}
} catch (final FileNotFoundException e) {
cleanup(file);
throw new FileCopyException(R.string.error_file_not_found);
} catch (final FileWriterException e) {
cleanup(file);
throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
} catch (final SecurityException e) {
cleanup(file);
throw new FileCopyException(R.string.error_security_exception);
} catch (final IOException e) {
cleanup(file);
throw new FileCopyException(R.string.error_io_exception);
}
}
public void copyFileToPrivateStorage(Message message, Uri uri, String type)
throws FileCopyException {
String mime = MimeUtils.guessMimeTypeFromUriAndMime(mXmppConnectionService, uri, type);
Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime=" + mime + ")");
String extension = MimeUtils.guessExtensionFromMimeType(mime);
if (extension == null) {
Log.d(Config.LOGTAG, "extension from mime type was null");
extension = getExtensionFromUri(uri);
}
if ("ogg".equals(extension) && type != null && type.startsWith("audio/")) {
extension = "oga";
}
setupRelativeFilePath(message, String.format("%s.%s", message.getUuid(), extension));
copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
}
private String getExtensionFromUri(final Uri uri) {
final String[] projection = {MediaStore.MediaColumns.DATA};
String filename = null;
try (final Cursor cursor =
mXmppConnectionService
.getContentResolver()
.query(uri, projection, null, null, null)) {
if (cursor != null && cursor.moveToFirst()) {
filename = cursor.getString(0);
}
} catch (final SecurityException | IllegalArgumentException e) {
filename = null;
}
if (filename == null) {
final List<String> segments = uri.getPathSegments();
if (segments.size() > 0) {
filename = segments.get(segments.size() - 1);
}
}
final int pos = filename == null ? -1 : filename.lastIndexOf('.');
return pos > 0 ? filename.substring(pos + 1) : null;
}
private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
throws FileCopyException, ImageCompressionException {
final File parent = file.getParentFile();
if (parent != null && parent.mkdirs()) {
Log.d(Config.LOGTAG, "created parent directory");
}
InputStream is = null;
OutputStream os = null;
try {
if (!file.exists() && !file.createNewFile()) {
throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
}
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
final Bitmap originalBitmap;
final BitmapFactory.Options options = new BitmapFactory.Options();
final int inSampleSize = (int) Math.pow(2, sampleSize);
Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
options.inSampleSize = inSampleSize;
originalBitmap = BitmapFactory.decodeStream(is, null, options);
is.close();
if (originalBitmap == null) {
throw new ImageCompressionException("Source file was not an image");
}
if (!"image/jpeg".equals(options.outMimeType) && hasAlpha(originalBitmap)) {
originalBitmap.recycle();
throw new ImageCompressionException("Source file had alpha channel");
}
Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
final int rotation = getRotation(image);
scaledBitmap = rotate(scaledBitmap, rotation);
boolean targetSizeReached = false;
int quality = Config.IMAGE_QUALITY;
final int imageMaxSize =
mXmppConnectionService
.getResources()
.getInteger(R.integer.auto_accept_filesize);
while (!targetSizeReached) {
os = new FileOutputStream(file);
Log.d(Config.LOGTAG, "compressing image with quality " + quality);
boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
if (!success) {
throw new FileCopyException(R.string.error_compressing_image);
}
os.flush();
final long fileSize = file.length();
Log.d(Config.LOGTAG, "achieved file size of " + fileSize);
targetSizeReached = fileSize <= imageMaxSize || quality <= 50;
quality -= 5;
}
scaledBitmap.recycle();
} catch (final FileNotFoundException e) {
cleanup(file);
throw new FileCopyException(R.string.error_file_not_found);
} catch (final IOException e) {
cleanup(file);
throw new FileCopyException(R.string.error_io_exception);
} catch (SecurityException e) {
cleanup(file);
throw new FileCopyException(R.string.error_security_exception_during_image_copy);
} catch (final OutOfMemoryError e) {
++sampleSize;
if (sampleSize <= 3) {
copyImageToPrivateStorage(file, image, sampleSize);
} else {
throw new FileCopyException(R.string.error_out_of_memory);
}
} finally {
close(os);
close(is);
}
}
private static void cleanup(final File file) {
try {
file.delete();
} catch (Exception e) {
}
}
public void copyImageToPrivateStorage(File file, Uri image)
throws FileCopyException, ImageCompressionException {
Log.d(
Config.LOGTAG,
"copy image ("
+ image.toString()
+ ") to private storage "
+ file.getAbsolutePath());
copyImageToPrivateStorage(file, image, 0);
}
public void copyImageToPrivateStorage(Message message, Uri image)
throws FileCopyException, ImageCompressionException {
final String filename;
switch (Config.IMAGE_FORMAT) {
case JPEG:
filename = String.format("%s.%s", message.getUuid(), "jpg");
break;
case PNG:
filename = String.format("%s.%s", message.getUuid(), "png");
break;
case WEBP:
filename = String.format("%s.%s", message.getUuid(), "webp");
break;
default:
throw new IllegalStateException("Unknown image format");
}
setupRelativeFilePath(message, filename);
copyImageToPrivateStorage(getFile(message), image);
updateFileParams(message);
}
public void setupRelativeFilePath(final Message message, final String filename) {
final String extension = MimeUtils.extractRelevantExtension(filename);
final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
setupRelativeFilePath(message, filename, mime);
}
public File getStorageLocation(final String filename, final String mime) {
final File parentDirectory;
if (Strings.isNullOrEmpty(mime)) {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
} else if (mime.startsWith("image/")) {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
} else if (mime.startsWith("video/")) {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
} else if (MediaAdapter.DOCUMENT_MIMES.contains(mime)) {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
} else {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
}
final File appDirectory =
new File(parentDirectory, mXmppConnectionService.getString(R.string.app_name));
return new File(appDirectory, filename);
}
public void setupRelativeFilePath(
final Message message, final String filename, final String mime) {
final File file = getStorageLocation(filename, mime);
message.setRelativeFilePath(file.getAbsolutePath());
}
public boolean unusualBounds(final Uri image) {
try {
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
final InputStream inputStream =
mXmppConnectionService.getContentResolver().openInputStream(image);
BitmapFactory.decodeStream(inputStream, null, options);
close(inputStream);
float ratio = (float) options.outHeight / options.outWidth;
return ratio > (21.0f / 9.0f) || ratio < (9.0f / 21.0f);
} catch (final Exception e) {
Log.w(Config.LOGTAG, "unable to detect image bounds", e);
return false;
}
}
private int getRotation(final File file) {
try (final InputStream inputStream = new FileInputStream(file)) {
return getRotation(inputStream);
} catch (Exception e) {
return 0;
}
}
private int getRotation(final Uri image) {
try (final InputStream is =
mXmppConnectionService.getContentResolver().openInputStream(image)) {
return is == null ? 0 : getRotation(is);
} catch (final Exception e) {
return 0;
}
}
private static int getRotation(final InputStream inputStream) throws IOException {
final ExifInterface exif = new ExifInterface(inputStream);
final int orientation =
exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_180:
return 180;
case ExifInterface.ORIENTATION_ROTATE_90:
return 90;
case ExifInterface.ORIENTATION_ROTATE_270:
return 270;
default:
return 0;
}
}
public Bitmap getThumbnail(Message message, int size, boolean cacheOnly) throws IOException {
final String uuid = message.getUuid();
final LruCache<String, Bitmap> cache = mXmppConnectionService.getBitmapCache();
Bitmap thumbnail = cache.get(uuid);
if ((thumbnail == null) && (!cacheOnly)) {
synchronized (THUMBNAIL_LOCK) {
thumbnail = cache.get(uuid);
if (thumbnail != null) {
return thumbnail;
}
DownloadableFile file = getFile(message);
final String mime = file.getMimeType();
if ("application/pdf".equals(mime) && Compatibility.runsTwentyOne()) {
thumbnail = getPdfDocumentPreview(file, size);
} else if (mime.startsWith("video/")) {
thumbnail = getVideoPreview(file, size);
} else {
final Bitmap fullSize = getFullSizeImagePreview(file, size);
if (fullSize == null) {
throw new FileNotFoundException();
}
thumbnail = resize(fullSize, size);
thumbnail = rotate(thumbnail, getRotation(file));
if (mime.equals("image/gif")) {
Bitmap withGifOverlay = thumbnail.copy(Bitmap.Config.ARGB_8888, true);
drawOverlay(
withGifOverlay,
paintOverlayBlack(withGifOverlay)
? R.drawable.play_gif_black
: R.drawable.play_gif_white,
1.0f);
thumbnail.recycle();
thumbnail = withGifOverlay;
}
}
cache.put(uuid, thumbnail);
}
}
return thumbnail;
}
private Bitmap getFullSizeImagePreview(File file, int size) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(file, size);
try {
return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
} catch (OutOfMemoryError e) {
options.inSampleSize *= 2;
return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
}
}
private void drawOverlay(Bitmap bitmap, int resource, float factor) {
Bitmap overlay =
BitmapFactory.decodeResource(mXmppConnectionService.getResources(), resource);
Canvas canvas = new Canvas(bitmap);
float targetSize = Math.min(canvas.getWidth(), canvas.getHeight()) * factor;
Log.d(
Config.LOGTAG,
"target size overlay: "
+ targetSize
+ " overlay bitmap size was "
+ overlay.getHeight());
float left = (canvas.getWidth() - targetSize) / 2.0f;
float top = (canvas.getHeight() - targetSize) / 2.0f;
RectF dst = new RectF(left, top, left + targetSize - 1, top + targetSize - 1);
canvas.drawBitmap(overlay, null, dst, createAntiAliasingPaint());
}
/** https://stackoverflow.com/a/3943023/210897 */
private boolean paintOverlayBlack(final Bitmap bitmap) {
final int h = bitmap.getHeight();
final int w = bitmap.getWidth();
int record = 0;
for (int y = Math.round(h * IGNORE_PADDING); y < h - Math.round(h * IGNORE_PADDING); ++y) {
for (int x = Math.round(w * IGNORE_PADDING);
x < w - Math.round(w * IGNORE_PADDING);
++x) {
int pixel = bitmap.getPixel(x, y);
if ((Color.red(pixel) * 0.299
+ Color.green(pixel) * 0.587
+ Color.blue(pixel) * 0.114)
> 186) {
--record;
} else {
++record;
}
}
}
return record < 0;
}
private boolean paintOverlayBlackPdf(final Bitmap bitmap) {
final int h = bitmap.getHeight();
final int w = bitmap.getWidth();
int white = 0;
for (int y = 0; y < h; ++y) {
for (int x = 0; x < w; ++x) {
int pixel = bitmap.getPixel(x, y);
if ((Color.red(pixel) * 0.299
+ Color.green(pixel) * 0.587
+ Color.blue(pixel) * 0.114)
> 186) {
white++;
}
}
}
return white > (h * w * 0.4f);
}
private Bitmap cropCenterSquareVideo(Uri uri, int size) {
MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
Bitmap frame;
try {
metadataRetriever.setDataSource(mXmppConnectionService, uri);
frame = metadataRetriever.getFrameAtTime(0);
metadataRetriever.release();
return cropCenterSquare(frame, size);
} catch (Exception e) {
frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
frame.eraseColor(0xff000000);
return frame;
}
}
private Bitmap getVideoPreview(final File file, final int size) {
final MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
Bitmap frame;
try {
metadataRetriever.setDataSource(file.getAbsolutePath());
frame = metadataRetriever.getFrameAtTime(0);
metadataRetriever.release();
frame = resize(frame, size);
} catch (IOException | RuntimeException e) {
frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
frame.eraseColor(0xff000000);
}
drawOverlay(
frame,
paintOverlayBlack(frame)
? R.drawable.play_video_black
: R.drawable.play_video_white,
0.75f);
return frame;
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private Bitmap getPdfDocumentPreview(final File file, final int size) {
try {
final ParcelFileDescriptor fileDescriptor =
ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
final Bitmap rendered = renderPdfDocument(fileDescriptor, size, true);
drawOverlay(
rendered,
paintOverlayBlackPdf(rendered)
? R.drawable.open_pdf_black
: R.drawable.open_pdf_white,
0.75f);
return rendered;
} catch (final IOException | SecurityException e) {
Log.d(Config.LOGTAG, "unable to render PDF document preview", e);
final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
placeholder.eraseColor(0xff000000);
return placeholder;
}
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private Bitmap cropCenterSquarePdf(final Uri uri, final int size) {
try {
ParcelFileDescriptor fileDescriptor =
mXmppConnectionService.getContentResolver().openFileDescriptor(uri, "r");
final Bitmap bitmap = renderPdfDocument(fileDescriptor, size, false);
return cropCenterSquare(bitmap, size);
} catch (Exception e) {
final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
placeholder.eraseColor(0xff000000);
return placeholder;
}
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private Bitmap renderPdfDocument(
ParcelFileDescriptor fileDescriptor, int targetSize, boolean fit) throws IOException {
final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
final PdfRenderer.Page page = pdfRenderer.openPage(0);
final Dimensions dimensions =
scalePdfDimensions(
new Dimensions(page.getHeight(), page.getWidth()), targetSize, fit);
final Bitmap rendered =
Bitmap.createBitmap(dimensions.width, dimensions.height, Bitmap.Config.ARGB_8888);
rendered.eraseColor(0xffffffff);
page.render(rendered, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
page.close();
pdfRenderer.close();
fileDescriptor.close();
return rendered;
}
public Uri getTakePhotoUri() {
final String filename =
String.format("IMG_%s.%s", IMAGE_DATE_FORMAT.format(new Date()), "jpg");
final File directory;
if (Config.ONLY_INTERNAL_STORAGE) {
directory = new File(mXmppConnectionService.getCacheDir(), "Camera");
} else {
directory =
new File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM),
"Camera");
}
final File file = new File(directory, filename);
file.getParentFile().mkdirs();
return getUriForFile(mXmppConnectionService, file);
}
public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
final Avatar uncompressAvatar = getUncompressedAvatar(image);
if (uncompressAvatar != null
&& uncompressAvatar.image.length() <= Config.AVATAR_CHAR_LIMIT) {
return uncompressAvatar;
}
if (uncompressAvatar != null) {
Log.d(
Config.LOGTAG,
"uncompressed avatar exceeded char limit by "
+ (uncompressAvatar.image.length() - Config.AVATAR_CHAR_LIMIT));
}
Bitmap bm = cropCenterSquare(image, size);
if (bm == null) {
return null;
}
if (hasAlpha(bm)) {
Log.d(Config.LOGTAG, "alpha in avatar detected; uploading as PNG");
bm.recycle();
bm = cropCenterSquare(image, 96);
return getPepAvatar(bm, Bitmap.CompressFormat.PNG, 100);
}
return getPepAvatar(bm, format, 100);
}
private Avatar getUncompressedAvatar(Uri uri) {
Bitmap bitmap = null;
try {
bitmap =
BitmapFactory.decodeStream(
mXmppConnectionService.getContentResolver().openInputStream(uri));
return getPepAvatar(bitmap, Bitmap.CompressFormat.PNG, 100);
} catch (Exception e) {
return null;
} finally {
if (bitmap != null) {
bitmap.recycle();
}
}
}
private Avatar getPepAvatar(Bitmap bitmap, Bitmap.CompressFormat format, int quality) {
try {
ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
Base64OutputStream mBase64OutputStream =
new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
DigestOutputStream mDigestOutputStream =
new DigestOutputStream(mBase64OutputStream, digest);
if (!bitmap.compress(format, quality, mDigestOutputStream)) {
return null;
}
mDigestOutputStream.flush();
mDigestOutputStream.close();
long chars = mByteArrayOutputStream.size();
if (format != Bitmap.CompressFormat.PNG
&& quality >= 50
&& chars >= Config.AVATAR_CHAR_LIMIT) {
int q = quality - 2;
Log.d(
Config.LOGTAG,
"avatar char length was " + chars + " reducing quality to " + q);
return getPepAvatar(bitmap, format, q);
}
Log.d(Config.LOGTAG, "settled on char length " + chars + " with quality=" + quality);
final Avatar avatar = new Avatar();
avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
avatar.image = new String(mByteArrayOutputStream.toByteArray());
if (format.equals(Bitmap.CompressFormat.WEBP)) {
avatar.type = "image/webp";
} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
avatar.type = "image/jpeg";
} else if (format.equals(Bitmap.CompressFormat.PNG)) {
avatar.type = "image/png";
}
avatar.width = bitmap.getWidth();
avatar.height = bitmap.getHeight();
return avatar;
} catch (OutOfMemoryError e) {
Log.d(Config.LOGTAG, "unable to convert avatar to base64 due to low memory");
return null;
} catch (Exception e) {
return null;
}
}
public Avatar getStoredPepAvatar(String hash) {
if (hash == null) {
return null;
}
Avatar avatar = new Avatar();
final File file = getAvatarFile(hash);
FileInputStream is = null;
try {
avatar.size = file.length();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
is = new FileInputStream(file);
ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
Base64OutputStream mBase64OutputStream =
new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
DigestOutputStream os = new DigestOutputStream(mBase64OutputStream, digest);
byte[] buffer = new byte[4096];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
os.flush();
os.close();
avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
avatar.image = new String(mByteArrayOutputStream.toByteArray());
avatar.height = options.outHeight;
avatar.width = options.outWidth;
avatar.type = options.outMimeType;
return avatar;
} catch (NoSuchAlgorithmException | IOException e) {
return null;
} finally {
close(is);
}
}
public boolean isAvatarCached(Avatar avatar) {
final File file = getAvatarFile(avatar.getFilename());
return file.exists();
}
public boolean save(final Avatar avatar) {
File file;
if (isAvatarCached(avatar)) {
file = getAvatarFile(avatar.getFilename());
avatar.size = file.length();
} else {
file =
new File(
mXmppConnectionService.getCacheDir().getAbsolutePath()
+ "/"
+ UUID.randomUUID().toString());
if (file.getParentFile().mkdirs()) {
Log.d(Config.LOGTAG, "created cache directory");
}
OutputStream os = null;
try {
if (!file.createNewFile()) {
Log.d(
Config.LOGTAG,
"unable to create temporary file " + file.getAbsolutePath());
}
os = new FileOutputStream(file);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
digest.reset();
DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
final byte[] bytes = avatar.getImageAsBytes();
mDigestOutputStream.write(bytes);
mDigestOutputStream.flush();
mDigestOutputStream.close();
String sha1sum = CryptoHelper.bytesToHex(digest.digest());
if (sha1sum.equals(avatar.sha1sum)) {
final File outputFile = getAvatarFile(avatar.getFilename());
if (outputFile.getParentFile().mkdirs()) {
Log.d(Config.LOGTAG, "created avatar directory");
}
final File avatarFile = getAvatarFile(avatar.getFilename());
if (!file.renameTo(avatarFile)) {
Log.d(
Config.LOGTAG,
"unable to rename " + file.getAbsolutePath() + " to " + outputFile);
return false;
}
} else {
Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
if (!file.delete()) {
Log.d(Config.LOGTAG, "unable to delete temporary file");
}
return false;
}
avatar.size = bytes.length;
} catch (IllegalArgumentException | IOException | NoSuchAlgorithmException e) {
return false;
} finally {
close(os);
}
}
return true;
}
public void deleteHistoricAvatarPath() {
delete(getHistoricAvatarPath());
}
private void delete(final File file) {
if (file.isDirectory()) {
final File[] files = file.listFiles();
if (files != null) {
for (final File f : files) {
delete(f);
}
}
}
if (file.delete()) {
Log.d(Config.LOGTAG, "deleted " + file.getAbsolutePath());
}
}
private File getHistoricAvatarPath() {
return new File(mXmppConnectionService.getFilesDir(), "/avatars/");
}
private File getAvatarFile(String avatar) {
return new File(mXmppConnectionService.getCacheDir(), "/avatars/" + avatar);
}
public Uri getAvatarUri(String avatar) {
return Uri.fromFile(getAvatarFile(avatar));
}
public Bitmap cropCenterSquare(Uri image, int size) {
if (image == null) {
return null;
}
InputStream is = null;
try {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(image, size);
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
return null;
}
Bitmap input = BitmapFactory.decodeStream(is, null, options);
if (input == null) {
return null;
} else {
input = rotate(input, getRotation(image));
return cropCenterSquare(input, size);
}
} catch (FileNotFoundException | SecurityException e) {
Log.d(Config.LOGTAG, "unable to open file " + image.toString(), e);
return null;
} finally {
close(is);
}
}
public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
if (image == null) {
return null;
}
InputStream is = null;
try {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
return null;
}
Bitmap source = BitmapFactory.decodeStream(is, null, options);
if (source == null) {
return null;
}
int sourceWidth = source.getWidth();
int sourceHeight = source.getHeight();
float xScale = (float) newWidth / sourceWidth;
float yScale = (float) newHeight / sourceHeight;
float scale = Math.max(xScale, yScale);
float scaledWidth = scale * sourceWidth;
float scaledHeight = scale * sourceHeight;
float left = (newWidth - scaledWidth) / 2;
float top = (newHeight - scaledHeight) / 2;
RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(dest);
canvas.drawBitmap(source, null, targetRect, createAntiAliasingPaint());
if (source.isRecycled()) {
source.recycle();
}
return dest;
} catch (SecurityException e) {
return null; // android 6.0 with revoked permissions for example
} catch (FileNotFoundException e) {
return null;
} finally {
close(is);
}
}
public Bitmap cropCenterSquare(Bitmap input, int size) {
int w = input.getWidth();
int h = input.getHeight();
float scale = Math.max((float) size / h, (float) size / w);
float outWidth = scale * w;
float outHeight = scale * h;
float left = (size - outWidth) / 2;
float top = (size - outHeight) / 2;
RectF target = new RectF(left, top, left + outWidth, top + outHeight);
Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
canvas.drawBitmap(input, null, target, createAntiAliasingPaint());
if (!input.isRecycled()) {
input.recycle();
}
return output;
}
private int calcSampleSize(Uri image, int size)
throws FileNotFoundException, SecurityException {
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
final InputStream inputStream =
mXmppConnectionService.getContentResolver().openInputStream(image);
BitmapFactory.decodeStream(inputStream, null, options);
close(inputStream);
return calcSampleSize(options, size);
}
public void updateFileParams(Message message) {
updateFileParams(message, null);
}
public void updateFileParams(Message message, String url) {
DownloadableFile file = getFile(message);
final String mime = file.getMimeType();
final boolean privateMessage = message.isPrivateMessage();
final boolean image =
message.getType() == Message.TYPE_IMAGE
|| (mime != null && mime.startsWith("image/"));
final boolean video = mime != null && mime.startsWith("video/");
final boolean audio = mime != null && mime.startsWith("audio/");
final boolean pdf = "application/pdf".equals(mime);
final StringBuilder body = new StringBuilder();
if (url != null) {
body.append(url);
}
body.append('|').append(file.getSize());
if (image || video || (pdf && Compatibility.runsTwentyOne())) {
try {
final Dimensions dimensions;
if (video) {
dimensions = getVideoDimensions(file);
} else if (pdf && Compatibility.runsTwentyOne()) {
dimensions = getPdfDocumentDimensions(file);
} else {
dimensions = getImageDimensions(file);
}
if (dimensions.valid()) {
body.append('|').append(dimensions.width).append('|').append(dimensions.height);
}
} catch (NotAVideoFile notAVideoFile) {
Log.d(
Config.LOGTAG,
"file with mime type " + file.getMimeType() + " was not a video file");
// fall threw
}
} else if (audio) {
body.append("|0|0|").append(getMediaRuntime(file));
}
message.setBody(body.toString());
message.setDeleted(false);
message.setType(
privateMessage
? Message.TYPE_PRIVATE_FILE
: (image ? Message.TYPE_IMAGE : Message.TYPE_FILE));
}
private int getMediaRuntime(File file) {
try {
MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
mediaMetadataRetriever.setDataSource(file.toString());
return Integer.parseInt(
mediaMetadataRetriever.extractMetadata(
MediaMetadataRetriever.METADATA_KEY_DURATION));
} catch (RuntimeException e) {
return 0;
}
}
private Dimensions getImageDimensions(File file) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
int rotation = getRotation(file);
boolean rotated = rotation == 90 || rotation == 270;
int imageHeight = rotated ? options.outWidth : options.outHeight;
int imageWidth = rotated ? options.outHeight : options.outWidth;
return new Dimensions(imageHeight, imageWidth);
}
private Dimensions getVideoDimensions(File file) throws NotAVideoFile {
MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
try {
metadataRetriever.setDataSource(file.getAbsolutePath());
} catch (RuntimeException e) {
throw new NotAVideoFile(e);
}
return getVideoDimensions(metadataRetriever);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private Dimensions getPdfDocumentDimensions(final File file) {
final ParcelFileDescriptor fileDescriptor;
try {
fileDescriptor = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
if (fileDescriptor == null) {
return new Dimensions(0, 0);
}
} catch (FileNotFoundException e) {
return new Dimensions(0, 0);
}
try {
final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
final PdfRenderer.Page page = pdfRenderer.openPage(0);
final int height = page.getHeight();
final int width = page.getWidth();
page.close();
pdfRenderer.close();
return scalePdfDimensions(new Dimensions(height, width));
} catch (IOException | SecurityException e) {
Log.d(Config.LOGTAG, "unable to get dimensions for pdf document", e);
return new Dimensions(0, 0);
}
}
private Dimensions scalePdfDimensions(Dimensions in) {
final DisplayMetrics displayMetrics =
mXmppConnectionService.getResources().getDisplayMetrics();
final int target = (int) (displayMetrics.density * 288);
return scalePdfDimensions(in, target, true);
}
private static Dimensions scalePdfDimensions(
final Dimensions in, final int target, final boolean fit) {
final int w, h;
if (fit == (in.width <= in.height)) {
w = Math.max((int) (in.width / ((double) in.height / target)), 1);
h = target;
} else {
w = target;
h = Math.max((int) (in.height / ((double) in.width / target)), 1);
}
return new Dimensions(h, w);
}
public Bitmap getAvatar(String avatar, int size) {
if (avatar == null) {
return null;
}
Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
return bm;
}
private static class Dimensions {
public final int width;
public final int height;
Dimensions(int height, int width) {
this.width = width;
this.height = height;
}
public int getMin() {
return Math.min(width, height);
}
public boolean valid() {
return width > 0 && height > 0;
}
}
private static class NotAVideoFile extends Exception {
public NotAVideoFile(Throwable t) {
super(t);
}
public NotAVideoFile() {
super();
}
}
public static class ImageCompressionException extends Exception {
ImageCompressionException(String message) {
super(message);
}
}
public static class FileCopyException extends Exception {
private final int resId;
private FileCopyException(@StringRes int resId) {
this.resId = resId;
}
public @StringRes int getResId() {
return resId;
}
}
}