1package eu.siacs.conversations.persistance;
2
3import android.content.ContentResolver;
4import android.content.Context;
5import android.content.res.Resources;
6import android.database.Cursor;
7import android.graphics.Bitmap;
8import android.graphics.BitmapFactory;
9import android.graphics.Canvas;
10import android.graphics.Color;
11import android.graphics.drawable.BitmapDrawable;
12import android.graphics.drawable.Drawable;
13import android.graphics.ImageDecoder;
14import android.graphics.Matrix;
15import android.graphics.Paint;
16import android.graphics.Rect;
17import android.graphics.RectF;
18import android.graphics.pdf.PdfRenderer;
19import android.media.MediaMetadataRetriever;
20import android.media.MediaScannerConnection;
21import android.net.Uri;
22import android.os.Build;
23import android.os.Environment;
24import android.os.ParcelFileDescriptor;
25import android.provider.MediaStore;
26import android.provider.OpenableColumns;
27import android.system.Os;
28import android.system.StructStat;
29import android.util.Base64;
30import android.util.Base64OutputStream;
31import android.util.DisplayMetrics;
32import android.util.Log;
33import android.util.LruCache;
34
35import androidx.annotation.RequiresApi;
36import androidx.annotation.StringRes;
37import androidx.core.content.FileProvider;
38import androidx.documentfile.provider.DocumentFile;
39import androidx.exifinterface.media.ExifInterface;
40
41import com.cheogram.android.BobTransfer;
42
43import com.google.common.base.Strings;
44import com.google.common.collect.ImmutableList;
45import com.google.common.io.ByteStreams;
46
47import com.madebyevan.thumbhash.ThumbHash;
48
49import com.wolt.blurhashkt.BlurHashDecoder;
50
51import java.io.ByteArrayOutputStream;
52import java.io.Closeable;
53import java.io.File;
54import java.io.FileDescriptor;
55import java.io.FileInputStream;
56import java.io.FileNotFoundException;
57import java.io.FileOutputStream;
58import java.io.IOException;
59import java.io.InputStream;
60import java.io.OutputStream;
61import java.net.ServerSocket;
62import java.net.Socket;
63import java.nio.ByteBuffer;
64import java.security.DigestOutputStream;
65import java.security.MessageDigest;
66import java.security.NoSuchAlgorithmException;
67import java.text.SimpleDateFormat;
68import java.util.ArrayList;
69import java.util.Arrays;
70import java.util.Date;
71import java.util.List;
72import java.util.Locale;
73import java.util.UUID;
74
75import io.ipfs.cid.Cid;
76
77import eu.siacs.conversations.Config;
78import eu.siacs.conversations.R;
79import eu.siacs.conversations.entities.DownloadableFile;
80import eu.siacs.conversations.entities.Message;
81import eu.siacs.conversations.services.AttachFileToConversationRunnable;
82import eu.siacs.conversations.services.XmppConnectionService;
83import eu.siacs.conversations.ui.adapter.MediaAdapter;
84import eu.siacs.conversations.ui.util.Attachment;
85import eu.siacs.conversations.utils.CryptoHelper;
86import eu.siacs.conversations.utils.FileUtils;
87import eu.siacs.conversations.utils.FileWriterException;
88import eu.siacs.conversations.utils.MimeUtils;
89import eu.siacs.conversations.xmpp.pep.Avatar;
90import eu.siacs.conversations.xml.Element;
91
92public class FileBackend {
93
94 private static final Object THUMBNAIL_LOCK = new Object();
95
96 private static final SimpleDateFormat IMAGE_DATE_FORMAT =
97 new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US);
98
99 private static final String FILE_PROVIDER = ".files";
100 private static final float IGNORE_PADDING = 0.15f;
101 private final XmppConnectionService mXmppConnectionService;
102
103 private static final List<String> STORAGE_TYPES;
104
105 static {
106 final ImmutableList.Builder<String> builder =
107 new ImmutableList.Builder<String>()
108 .add(
109 Environment.DIRECTORY_DOWNLOADS,
110 Environment.DIRECTORY_PICTURES,
111 Environment.DIRECTORY_MOVIES);
112 if (Build.VERSION.SDK_INT >= 19) {
113 builder.add(Environment.DIRECTORY_DOCUMENTS);
114 }
115 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
116 builder.add(Environment.DIRECTORY_RECORDINGS);
117 }
118 STORAGE_TYPES = builder.build();
119 }
120
121 public FileBackend(XmppConnectionService service) {
122 this.mXmppConnectionService = service;
123 }
124
125 public static long getFileSize(Context context, Uri uri) {
126 try (final Cursor cursor =
127 context.getContentResolver().query(uri, null, null, null, null)) {
128 if (cursor != null && cursor.moveToFirst()) {
129 final int index = cursor.getColumnIndex(OpenableColumns.SIZE);
130 if (index == -1) {
131 return -1;
132 }
133 return cursor.getLong(index);
134 }
135 return -1;
136 } catch (final Exception ignored) {
137 return -1;
138 }
139 }
140
141 public static boolean allFilesUnderSize(
142 Context context, List<Attachment> attachments, long max) {
143 final boolean compressVideo =
144 !AttachFileToConversationRunnable.getVideoCompression(context)
145 .equals("uncompressed");
146 if (max <= 0) {
147 Log.d(Config.LOGTAG, "server did not report max file size for http upload");
148 return true; // exception to be compatible with HTTP Upload < v0.2
149 }
150 for (Attachment attachment : attachments) {
151 if (attachment.getType() != Attachment.Type.FILE) {
152 continue;
153 }
154 String mime = attachment.getMime();
155 if (mime != null && mime.startsWith("video/") && compressVideo) {
156 try {
157 Dimensions dimensions =
158 FileBackend.getVideoDimensions(context, attachment.getUri());
159 if (dimensions.getMin() > 720) {
160 Log.d(
161 Config.LOGTAG,
162 "do not consider video file with min width larger than 720 for size check");
163 continue;
164 }
165 } catch (NotAVideoFile notAVideoFile) {
166 // ignore and fall through
167 }
168 }
169 if (FileBackend.getFileSize(context, attachment.getUri()) > max) {
170 Log.d(
171 Config.LOGTAG,
172 "not all files are under "
173 + max
174 + " bytes. suggesting falling back to jingle");
175 return false;
176 }
177 }
178 return true;
179 }
180
181 public static File getBackupDirectory(final Context context) {
182 final File conversationsDownloadDirectory =
183 new File(
184 Environment.getExternalStoragePublicDirectory(
185 Environment.DIRECTORY_DOWNLOADS),
186 context.getString(R.string.app_name));
187 return new File(conversationsDownloadDirectory, "Backup");
188 }
189
190 public static File getLegacyBackupDirectory(final String app) {
191 final File appDirectory = new File(Environment.getExternalStorageDirectory(), app);
192 return new File(appDirectory, "Backup");
193 }
194
195 private static Bitmap rotate(final Bitmap bitmap, final int degree) {
196 if (degree == 0) {
197 return bitmap;
198 }
199 final int w = bitmap.getWidth();
200 final int h = bitmap.getHeight();
201 final Matrix matrix = new Matrix();
202 matrix.postRotate(degree);
203 final Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
204 if (!bitmap.isRecycled()) {
205 bitmap.recycle();
206 }
207 return result;
208 }
209
210 public static boolean isPathBlacklisted(String path) {
211 final String androidDataPath =
212 Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/";
213 return path.startsWith(androidDataPath);
214 }
215
216 private static Paint createAntiAliasingPaint() {
217 Paint paint = new Paint();
218 paint.setAntiAlias(true);
219 paint.setFilterBitmap(true);
220 paint.setDither(true);
221 return paint;
222 }
223
224 public static Uri getUriForUri(Context context, Uri uri) {
225 if ("file".equals(uri.getScheme())) {
226 return getUriForFile(context, new File(uri.getPath()));
227 } else {
228 return uri;
229 }
230 }
231
232 public static Uri getUriForFile(Context context, File file) {
233 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N || Config.ONLY_INTERNAL_STORAGE) {
234 try {
235 return FileProvider.getUriForFile(context, getAuthority(context), file);
236 } catch (IllegalArgumentException e) {
237 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
238 throw new SecurityException(e);
239 } else {
240 return Uri.fromFile(file);
241 }
242 }
243 } else {
244 return Uri.fromFile(file);
245 }
246 }
247
248 public static String getAuthority(Context context) {
249 return context.getPackageName() + FILE_PROVIDER;
250 }
251
252 private static boolean hasAlpha(final Bitmap bitmap) {
253 final int w = bitmap.getWidth();
254 final int h = bitmap.getHeight();
255 final int yStep = Math.max(1, w / 100);
256 final int xStep = Math.max(1, h / 100);
257 for (int x = 0; x < w; x += xStep) {
258 for (int y = 0; y < h; y += yStep) {
259 if (Color.alpha(bitmap.getPixel(x, y)) < 255) {
260 return true;
261 }
262 }
263 }
264 return false;
265 }
266
267 private static int calcSampleSize(File image, int size) {
268 BitmapFactory.Options options = new BitmapFactory.Options();
269 options.inJustDecodeBounds = true;
270 BitmapFactory.decodeFile(image.getAbsolutePath(), options);
271 return calcSampleSize(options, size);
272 }
273
274 private static int calcSampleSize(BitmapFactory.Options options, int size) {
275 int height = options.outHeight;
276 int width = options.outWidth;
277 int inSampleSize = 1;
278
279 if (height > size || width > size) {
280 int halfHeight = height / 2;
281 int halfWidth = width / 2;
282
283 while ((halfHeight / inSampleSize) > size && (halfWidth / inSampleSize) > size) {
284 inSampleSize *= 2;
285 }
286 }
287 return inSampleSize;
288 }
289
290 private static Dimensions getVideoDimensions(Context context, Uri uri) throws NotAVideoFile {
291 MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
292 try {
293 mediaMetadataRetriever.setDataSource(context, uri);
294 } catch (RuntimeException e) {
295 throw new NotAVideoFile(e);
296 }
297 return getVideoDimensions(mediaMetadataRetriever);
298 }
299
300 private static Dimensions getVideoDimensionsOfFrame(
301 MediaMetadataRetriever mediaMetadataRetriever) {
302 Bitmap bitmap = null;
303 try {
304 bitmap = mediaMetadataRetriever.getFrameAtTime();
305 return new Dimensions(bitmap.getHeight(), bitmap.getWidth());
306 } catch (Exception e) {
307 return null;
308 } finally {
309 if (bitmap != null) {
310 bitmap.recycle();
311 }
312 }
313 }
314
315 private static Dimensions getVideoDimensions(MediaMetadataRetriever metadataRetriever)
316 throws NotAVideoFile {
317 String hasVideo =
318 metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
319 if (hasVideo == null) {
320 throw new NotAVideoFile();
321 }
322 Dimensions dimensions = getVideoDimensionsOfFrame(metadataRetriever);
323 if (dimensions != null) {
324 return dimensions;
325 }
326 final int rotation = extractRotationFromMediaRetriever(metadataRetriever);
327 boolean rotated = rotation == 90 || rotation == 270;
328 int height;
329 try {
330 String h =
331 metadataRetriever.extractMetadata(
332 MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
333 height = Integer.parseInt(h);
334 } catch (Exception e) {
335 height = -1;
336 }
337 int width;
338 try {
339 String w =
340 metadataRetriever.extractMetadata(
341 MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
342 width = Integer.parseInt(w);
343 } catch (Exception e) {
344 width = -1;
345 }
346 try {
347 metadataRetriever.release();
348 } catch (final IOException e) {
349 throw new NotAVideoFile();
350 }
351 Log.d(Config.LOGTAG, "extracted video dims " + width + "x" + height);
352 return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
353 }
354
355 private static int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
356 String r =
357 metadataRetriever.extractMetadata(
358 MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
359 try {
360 return Integer.parseInt(r);
361 } catch (Exception e) {
362 return 0;
363 }
364 }
365
366 public static void close(final Closeable stream) {
367 if (stream != null) {
368 try {
369 stream.close();
370 } catch (Exception e) {
371 Log.d(Config.LOGTAG, "unable to close stream", e);
372 }
373 }
374 }
375
376 public static void close(final Socket socket) {
377 if (socket != null) {
378 try {
379 socket.close();
380 } catch (IOException e) {
381 Log.d(Config.LOGTAG, "unable to close socket", e);
382 }
383 }
384 }
385
386 public static void close(final ServerSocket socket) {
387 if (socket != null) {
388 try {
389 socket.close();
390 } catch (IOException e) {
391 Log.d(Config.LOGTAG, "unable to close server socket", e);
392 }
393 }
394 }
395
396 public static boolean weOwnFile(final Uri uri) {
397 if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
398 return false;
399 } else {
400 return weOwnFileLollipop(uri);
401 }
402 }
403
404 private static boolean weOwnFileLollipop(final Uri uri) {
405 final String path = uri.getPath();
406 if (path == null) {
407 return false;
408 }
409 try {
410 File file = new File(path);
411 FileDescriptor fd =
412 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)
413 .getFileDescriptor();
414 StructStat st = Os.fstat(fd);
415 return st.st_uid == android.os.Process.myUid();
416 } catch (FileNotFoundException e) {
417 return false;
418 } catch (Exception e) {
419 return true;
420 }
421 }
422
423 public static Uri getMediaUri(Context context, File file) {
424 final String filePath = file.getAbsolutePath();
425 try (final Cursor cursor =
426 context.getContentResolver()
427 .query(
428 MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
429 new String[] {MediaStore.Images.Media._ID},
430 MediaStore.Images.Media.DATA + "=? ",
431 new String[] {filePath},
432 null)) {
433 if (cursor != null && cursor.moveToFirst()) {
434 final int id =
435 cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns._ID));
436 return Uri.withAppendedPath(
437 MediaStore.Images.Media.EXTERNAL_CONTENT_URI, String.valueOf(id));
438 } else {
439 return null;
440 }
441 } catch (final Exception e) {
442 return null;
443 }
444 }
445
446 public static void updateFileParams(Message message, String url, long size) {
447 Message.FileParams fileParams = new Message.FileParams();
448 fileParams.url = url;
449 fileParams.size = size;
450 message.setFileParams(fileParams);
451 }
452
453 public Bitmap getPreviewForUri(Attachment attachment, int size, boolean cacheOnly) {
454 final String key = "attachment_" + attachment.getUuid().toString() + "_" + size;
455 final LruCache<String, Bitmap> cache = mXmppConnectionService.getBitmapCache();
456 Bitmap bitmap = cache.get(key);
457 if (bitmap != null || cacheOnly) {
458 return bitmap;
459 }
460 final String mime = attachment.getMime();
461 if ("application/pdf".equals(mime)) {
462 bitmap = cropCenterSquarePdf(attachment.getUri(), size);
463 drawOverlay(
464 bitmap,
465 paintOverlayBlackPdf(bitmap)
466 ? R.drawable.open_pdf_black
467 : R.drawable.open_pdf_white,
468 0.75f);
469 } else if (mime != null && mime.startsWith("video/")) {
470 bitmap = cropCenterSquareVideo(attachment.getUri(), size);
471 drawOverlay(
472 bitmap,
473 paintOverlayBlack(bitmap)
474 ? R.drawable.play_video_black
475 : R.drawable.play_video_white,
476 0.75f);
477 } else {
478 bitmap = cropCenterSquare(attachment.getUri(), size);
479 if (bitmap != null && "image/gif".equals(mime)) {
480 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
481 drawOverlay(
482 withGifOverlay,
483 paintOverlayBlack(withGifOverlay)
484 ? R.drawable.play_gif_black
485 : R.drawable.play_gif_white,
486 1.0f);
487 bitmap.recycle();
488 bitmap = withGifOverlay;
489 }
490 }
491 if (bitmap != null) {
492 cache.put(key, bitmap);
493 }
494 return bitmap;
495 }
496
497 public void updateMediaScanner(File file) {
498 updateMediaScanner(file, null);
499 }
500
501 public void updateMediaScanner(File file, final Runnable callback) {
502 MediaScannerConnection.scanFile(
503 mXmppConnectionService,
504 new String[] {file.getAbsolutePath()},
505 null,
506 new MediaScannerConnection.MediaScannerConnectionClient() {
507 @Override
508 public void onMediaScannerConnected() {}
509
510 @Override
511 public void onScanCompleted(String path, Uri uri) {
512 if (callback != null && file.getAbsolutePath().equals(path)) {
513 callback.run();
514 } else {
515 Log.d(Config.LOGTAG, "media scanner scanned wrong file");
516 if (callback != null) {
517 callback.run();
518 }
519 }
520 }
521 });
522 }
523
524 public boolean deleteFile(Message message) {
525 File file = getFile(message);
526 if (file.delete()) {
527 updateMediaScanner(file);
528 return true;
529 } else {
530 return false;
531 }
532 }
533
534 public DownloadableFile getFile(Message message) {
535 return getFile(message, true);
536 }
537
538 public DownloadableFile getFileForPath(String path) {
539 return getFileForPath(
540 path,
541 MimeUtils.guessMimeTypeFromExtension(MimeUtils.extractRelevantExtension(path)));
542 }
543
544 private DownloadableFile getFileForPath(final String path, final String mime) {
545 if (path.startsWith("/")) {
546 return new DownloadableFile(path);
547 } else {
548 return getLegacyFileForFilename(path, mime);
549 }
550 }
551
552 public DownloadableFile getLegacyFileForFilename(final String filename, final String mime) {
553 if (Strings.isNullOrEmpty(mime)) {
554 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
555 } else if (mime.startsWith("image/")) {
556 return new DownloadableFile(getLegacyStorageLocation("Images"), filename);
557 } else if (mime.startsWith("video/")) {
558 return new DownloadableFile(getLegacyStorageLocation("Videos"), filename);
559 } else {
560 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
561 }
562 }
563
564 public boolean isInternalFile(final File file) {
565 final File internalFile = getFileForPath(file.getName());
566 return file.getAbsolutePath().equals(internalFile.getAbsolutePath());
567 }
568
569 public DownloadableFile getFile(Message message, boolean decrypted) {
570 final boolean encrypted =
571 !decrypted
572 && (message.getEncryption() == Message.ENCRYPTION_PGP
573 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
574 String path = message.getRelativeFilePath();
575 if (path == null) {
576 path = message.getUuid();
577 }
578 final DownloadableFile file = getFileForPath(path, message.getMimeType());
579 if (encrypted) {
580 return new DownloadableFile(
581 mXmppConnectionService.getCacheDir(),
582 String.format("%s.%s", file.getName(), "pgp"));
583 } else {
584 return file;
585 }
586 }
587
588 public List<Attachment> convertToAttachments(List<DatabaseBackend.FilePath> relativeFilePaths) {
589 final List<Attachment> attachments = new ArrayList<>();
590 for (final DatabaseBackend.FilePath relativeFilePath : relativeFilePaths) {
591 final String mime =
592 MimeUtils.guessMimeTypeFromExtension(
593 MimeUtils.extractRelevantExtension(relativeFilePath.path));
594 final File file = getFileForPath(relativeFilePath.path, mime);
595 attachments.add(Attachment.of(relativeFilePath.uuid, file, mime));
596 }
597 return attachments;
598 }
599
600 private File getLegacyStorageLocation(final String type) {
601 if (Config.ONLY_INTERNAL_STORAGE) {
602 return new File(mXmppConnectionService.getFilesDir(), type);
603 } else {
604 final File appDirectory =
605 new File(
606 Environment.getExternalStorageDirectory(),
607 mXmppConnectionService.getString(R.string.app_name));
608 final File appMediaDirectory = new File(appDirectory, "Media");
609 final String locationName =
610 String.format(
611 "%s %s", mXmppConnectionService.getString(R.string.app_name), type);
612 return new File(appMediaDirectory, locationName);
613 }
614 }
615
616 private Bitmap resize(final Bitmap originalBitmap, int size) throws IOException {
617 int w = originalBitmap.getWidth();
618 int h = originalBitmap.getHeight();
619 if (w <= 0 || h <= 0) {
620 throw new IOException("Decoded bitmap reported bounds smaller 0");
621 } else if (Math.max(w, h) > size) {
622 int scalledW;
623 int scalledH;
624 if (w <= h) {
625 scalledW = Math.max((int) (w / ((double) h / size)), 1);
626 scalledH = size;
627 } else {
628 scalledW = size;
629 scalledH = Math.max((int) (h / ((double) w / size)), 1);
630 }
631 final Bitmap result =
632 Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
633 if (!originalBitmap.isRecycled()) {
634 originalBitmap.recycle();
635 }
636 return result;
637 } else {
638 return originalBitmap;
639 }
640 }
641
642 public boolean useImageAsIs(final Uri uri) {
643 final String path = getOriginalPath(uri);
644 if (path == null || isPathBlacklisted(path)) {
645 return false;
646 }
647 final File file = new File(path);
648 long size = file.length();
649 if (size == 0
650 || size
651 >= mXmppConnectionService
652 .getResources()
653 .getInteger(R.integer.auto_accept_filesize)) {
654 return false;
655 }
656 BitmapFactory.Options options = new BitmapFactory.Options();
657 options.inJustDecodeBounds = true;
658 try {
659 for (Cid cid : calculateCids(uri)) {
660 if (mXmppConnectionService.getUrlForCid(cid) != null) return true;
661 }
662 final InputStream inputStream =
663 mXmppConnectionService.getContentResolver().openInputStream(uri);
664 BitmapFactory.decodeStream(inputStream, null, options);
665 close(inputStream);
666 if (options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
667 return false;
668 }
669 return (options.outWidth <= Config.IMAGE_SIZE
670 && options.outHeight <= Config.IMAGE_SIZE
671 && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
672 } catch (final IOException e) {
673 Log.d(Config.LOGTAG, "unable to get image dimensions", e);
674 return false;
675 }
676 }
677
678 public String getOriginalPath(Uri uri) {
679 return FileUtils.getPath(mXmppConnectionService, uri);
680 }
681
682 public void copyFileToDocumentFile(Context ctx, File file, DocumentFile df) throws FileCopyException {
683 Log.d(
684 Config.LOGTAG,
685 "copy file (" + file + ") to " + df);
686 try (final InputStream is = new FileInputStream(file);
687 final OutputStream os =
688 mXmppConnectionService.getContentResolver().openOutputStream(df.getUri())) {
689 if (is == null) {
690 throw new FileCopyException(R.string.error_file_not_found);
691 }
692 try {
693 ByteStreams.copy(is, os);
694 os.flush();
695 } catch (IOException e) {
696 throw new FileWriterException(file);
697 }
698 } catch (final FileNotFoundException e) {
699 throw new FileCopyException(R.string.error_file_not_found);
700 } catch (final FileWriterException e) {
701 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
702 } catch (final SecurityException | IllegalStateException e) {
703 throw new FileCopyException(R.string.error_security_exception);
704 } catch (final IOException e) {
705 throw new FileCopyException(R.string.error_io_exception);
706 }
707 }
708
709 private void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
710 Log.d(
711 Config.LOGTAG,
712 "copy file (" + uri.toString() + ") to private storage " + file.getAbsolutePath());
713 file.getParentFile().mkdirs();
714 try {
715 file.createNewFile();
716 } catch (IOException e) {
717 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
718 }
719 try (final OutputStream os = new FileOutputStream(file);
720 final InputStream is =
721 mXmppConnectionService.getContentResolver().openInputStream(uri)) {
722 if (is == null) {
723 throw new FileCopyException(R.string.error_file_not_found);
724 }
725 try {
726 ByteStreams.copy(is, os);
727 } catch (IOException e) {
728 throw new FileWriterException(file);
729 }
730 try {
731 os.flush();
732 } catch (IOException e) {
733 throw new FileWriterException(file);
734 }
735 } catch (final FileNotFoundException e) {
736 cleanup(file);
737 throw new FileCopyException(R.string.error_file_not_found);
738 } catch (final FileWriterException e) {
739 cleanup(file);
740 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
741 } catch (final SecurityException | IllegalStateException e) {
742 cleanup(file);
743 throw new FileCopyException(R.string.error_security_exception);
744 } catch (final IOException e) {
745 cleanup(file);
746 throw new FileCopyException(R.string.error_io_exception);
747 }
748 }
749
750 public void copyFileToPrivateStorage(Message message, Uri uri, String type)
751 throws FileCopyException {
752 String mime = MimeUtils.guessMimeTypeFromUriAndMime(mXmppConnectionService, uri, type);
753 Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime=" + mime + ")");
754 String extension = MimeUtils.guessExtensionFromMimeType(mime);
755 if (extension == null) {
756 Log.d(Config.LOGTAG, "extension from mime type was null");
757 extension = getExtensionFromUri(uri);
758 }
759 if ("ogg".equals(extension) && type != null && type.startsWith("audio/")) {
760 extension = "oga";
761 }
762
763 try {
764 setupRelativeFilePath(message, uri, extension);
765 copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
766 final String name = getDisplayNameFromUri(uri);
767 if (name != null) {
768 message.getFileParams().setName(name);
769 }
770 } catch (final XmppConnectionService.BlockedMediaException e) {
771 message.setRelativeFilePath(null);
772 message.setDeleted(true);
773 }
774 }
775
776 private String getDisplayNameFromUri(final Uri uri) {
777 final String[] projection = {OpenableColumns.DISPLAY_NAME};
778 String filename = null;
779 try (final Cursor cursor =
780 mXmppConnectionService
781 .getContentResolver()
782 .query(uri, projection, null, null, null)) {
783 if (cursor != null && cursor.moveToFirst()) {
784 filename = cursor.getString(0);
785 }
786 } catch (final Exception e) {
787 filename = null;
788 }
789 return filename;
790 }
791
792 private String getExtensionFromUri(final Uri uri) {
793 final String[] projection = {MediaStore.MediaColumns.DATA};
794 String filename = null;
795 try (final Cursor cursor =
796 mXmppConnectionService
797 .getContentResolver()
798 .query(uri, projection, null, null, null)) {
799 if (cursor != null && cursor.moveToFirst()) {
800 filename = cursor.getString(0);
801 }
802 } catch (final Exception e) {
803 filename = null;
804 }
805 if (filename == null) {
806 final List<String> segments = uri.getPathSegments();
807 if (segments.size() > 0) {
808 filename = segments.get(segments.size() - 1);
809 }
810 }
811 final int pos = filename == null ? -1 : filename.lastIndexOf('.');
812 return pos > 0 ? filename.substring(pos + 1) : null;
813 }
814
815 private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
816 throws FileCopyException, ImageCompressionException {
817 final File parent = file.getParentFile();
818 if (parent != null && parent.mkdirs()) {
819 Log.d(Config.LOGTAG, "created parent directory");
820 }
821 InputStream is = null;
822 OutputStream os = null;
823 try {
824 if (!file.exists() && !file.createNewFile()) {
825 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
826 }
827 is = mXmppConnectionService.getContentResolver().openInputStream(image);
828 if (is == null) {
829 throw new FileCopyException(R.string.error_not_an_image_file);
830 }
831 final Bitmap originalBitmap;
832 final BitmapFactory.Options options = new BitmapFactory.Options();
833 final int inSampleSize = (int) Math.pow(2, sampleSize);
834 Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
835 options.inSampleSize = inSampleSize;
836 originalBitmap = BitmapFactory.decodeStream(is, null, options);
837 is.close();
838 if (originalBitmap == null) {
839 throw new ImageCompressionException("Source file was not an image");
840 }
841 if (!"image/jpeg".equals(options.outMimeType) && hasAlpha(originalBitmap)) {
842 originalBitmap.recycle();
843 throw new ImageCompressionException("Source file had alpha channel");
844 }
845 Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
846 final int rotation = getRotation(image);
847 scaledBitmap = rotate(scaledBitmap, rotation);
848 boolean targetSizeReached = false;
849 int quality = Config.IMAGE_QUALITY;
850 final int imageMaxSize =
851 mXmppConnectionService
852 .getResources()
853 .getInteger(R.integer.auto_accept_filesize);
854 while (!targetSizeReached) {
855 os = new FileOutputStream(file);
856 Log.d(Config.LOGTAG, "compressing image with quality " + quality);
857 boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
858 if (!success) {
859 throw new FileCopyException(R.string.error_compressing_image);
860 }
861 os.flush();
862 final long fileSize = file.length();
863 Log.d(Config.LOGTAG, "achieved file size of " + fileSize);
864 targetSizeReached = fileSize <= imageMaxSize || quality <= 50;
865 quality -= 5;
866 }
867 scaledBitmap.recycle();
868 } catch (final FileNotFoundException e) {
869 cleanup(file);
870 throw new FileCopyException(R.string.error_file_not_found);
871 } catch (final IOException e) {
872 cleanup(file);
873 throw new FileCopyException(R.string.error_io_exception);
874 } catch (SecurityException e) {
875 cleanup(file);
876 throw new FileCopyException(R.string.error_security_exception_during_image_copy);
877 } catch (final OutOfMemoryError e) {
878 ++sampleSize;
879 if (sampleSize <= 3) {
880 copyImageToPrivateStorage(file, image, sampleSize);
881 } else {
882 throw new FileCopyException(R.string.error_out_of_memory);
883 }
884 } finally {
885 close(os);
886 close(is);
887 }
888 }
889
890 private static void cleanup(final File file) {
891 try {
892 file.delete();
893 } catch (Exception e) {
894
895 }
896 }
897
898 public void copyImageToPrivateStorage(File file, Uri image)
899 throws FileCopyException, ImageCompressionException {
900 Log.d(
901 Config.LOGTAG,
902 "copy image ("
903 + image.toString()
904 + ") to private storage "
905 + file.getAbsolutePath());
906 copyImageToPrivateStorage(file, image, 0);
907 }
908
909 public void copyImageToPrivateStorage(Message message, Uri image)
910 throws FileCopyException, ImageCompressionException {
911 final String filename;
912 switch (Config.IMAGE_FORMAT) {
913 case JPEG:
914 filename = String.format("%s.%s", message.getUuid(), "jpg");
915 break;
916 case PNG:
917 filename = String.format("%s.%s", message.getUuid(), "png");
918 break;
919 case WEBP:
920 filename = String.format("%s.%s", message.getUuid(), "webp");
921 break;
922 default:
923 throw new IllegalStateException("Unknown image format");
924 }
925 setupRelativeFilePath(message, filename);
926 final File tmp = getFile(message);
927 copyImageToPrivateStorage(tmp, image);
928 final String extension = MimeUtils.extractRelevantExtension(filename);
929 try {
930 setupRelativeFilePath(message, new FileInputStream(tmp), extension);
931 } catch (final FileNotFoundException e) {
932 throw new FileCopyException(R.string.error_file_not_found);
933 } catch (final IOException e) {
934 throw new FileCopyException(R.string.error_io_exception);
935 } catch (final XmppConnectionService.BlockedMediaException e) {
936 tmp.delete();
937 message.setRelativeFilePath(null);
938 message.setDeleted(true);
939 return;
940 }
941 tmp.renameTo(getFile(message));
942 updateFileParams(message, null, false);
943 }
944
945 public void setupRelativeFilePath(final Message message, final Uri uri, final String extension) throws FileCopyException, XmppConnectionService.BlockedMediaException {
946 try {
947 setupRelativeFilePath(message, mXmppConnectionService.getContentResolver().openInputStream(uri), extension);
948 } catch (final FileNotFoundException e) {
949 throw new FileCopyException(R.string.error_file_not_found);
950 } catch (final IOException e) {
951 throw new FileCopyException(R.string.error_io_exception);
952 }
953 }
954
955 public Cid[] calculateCids(final Uri uri) throws IOException {
956 return calculateCids(mXmppConnectionService.getContentResolver().openInputStream(uri));
957 }
958
959 public Cid[] calculateCids(final InputStream is) throws IOException {
960 try {
961 return CryptoHelper.cid(is, new String[]{"SHA-256", "SHA-1", "SHA-512"});
962 } catch (final NoSuchAlgorithmException e) {
963 throw new AssertionError(e);
964 }
965 }
966
967 public void setupRelativeFilePath(final Message message, final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
968 message.setRelativeFilePath(getStorageLocation(is, extension).getAbsolutePath());
969 }
970
971 public void setupRelativeFilePath(final Message message, final String filename) {
972 final String extension = MimeUtils.extractRelevantExtension(filename);
973 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
974 setupRelativeFilePath(message, filename, mime);
975 }
976
977 public File getStorageLocation(final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
978 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
979 Cid[] cids = calculateCids(is);
980 String base = cids[0].toString();
981
982 File file = null;
983 while (file == null || (file.exists() && !file.canRead())) {
984 file = getStorageLocation(String.format("%s.%s", base, extension), mime);
985 base += "_";
986 }
987 for (int i = 0; i < cids.length; i++) {
988 mXmppConnectionService.saveCid(cids[i], file);
989 }
990 return file;
991 }
992
993 public File getStorageLocation(final String filename, final String mime) {
994 final File parentDirectory;
995 if (Strings.isNullOrEmpty(mime)) {
996 parentDirectory =
997 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
998 } else if (mime.startsWith("image/")) {
999 parentDirectory =
1000 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
1001 } else if (mime.startsWith("video/")) {
1002 parentDirectory =
1003 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
1004 } else if (MediaAdapter.DOCUMENT_MIMES.contains(mime)) {
1005 parentDirectory =
1006 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
1007 } else {
1008 parentDirectory =
1009 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
1010 }
1011 final File appDirectory =
1012 new File(parentDirectory, mXmppConnectionService.getString(R.string.app_name));
1013 return new File(appDirectory, filename);
1014 }
1015
1016 public static boolean inConversationsDirectory(final Context context, String path) {
1017 final File fileDirectory = new File(path).getParentFile();
1018 for (final String type : STORAGE_TYPES) {
1019 final File typeDirectory =
1020 new File(
1021 Environment.getExternalStoragePublicDirectory(type),
1022 context.getString(R.string.app_name));
1023 if (typeDirectory.equals(fileDirectory)) {
1024 return true;
1025 }
1026 }
1027 return false;
1028 }
1029
1030 public void setupRelativeFilePath(
1031 final Message message, final String filename, final String mime) {
1032 final File file = getStorageLocation(filename, mime);
1033 message.setRelativeFilePath(file.getAbsolutePath());
1034 }
1035
1036 public boolean unusualBounds(final Uri image) {
1037 try {
1038 final BitmapFactory.Options options = new BitmapFactory.Options();
1039 options.inJustDecodeBounds = true;
1040 final InputStream inputStream =
1041 mXmppConnectionService.getContentResolver().openInputStream(image);
1042 BitmapFactory.decodeStream(inputStream, null, options);
1043 close(inputStream);
1044 float ratio = (float) options.outHeight / options.outWidth;
1045 return ratio > (21.0f / 9.0f) || ratio < (9.0f / 21.0f);
1046 } catch (final Exception e) {
1047 Log.w(Config.LOGTAG, "unable to detect image bounds", e);
1048 return false;
1049 }
1050 }
1051
1052 private int getRotation(final File file) {
1053 try (final InputStream inputStream = new FileInputStream(file)) {
1054 return getRotation(inputStream);
1055 } catch (Exception e) {
1056 return 0;
1057 }
1058 }
1059
1060 private int getRotation(final Uri image) {
1061 try (final InputStream is =
1062 mXmppConnectionService.getContentResolver().openInputStream(image)) {
1063 return is == null ? 0 : getRotation(is);
1064 } catch (final Exception e) {
1065 return 0;
1066 }
1067 }
1068
1069 private static int getRotation(final InputStream inputStream) throws IOException {
1070 final ExifInterface exif = new ExifInterface(inputStream);
1071 final int orientation =
1072 exif.getAttributeInt(
1073 ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
1074 switch (orientation) {
1075 case ExifInterface.ORIENTATION_ROTATE_180:
1076 return 180;
1077 case ExifInterface.ORIENTATION_ROTATE_90:
1078 return 90;
1079 case ExifInterface.ORIENTATION_ROTATE_270:
1080 return 270;
1081 default:
1082 return 0;
1083 }
1084 }
1085
1086 public BitmapDrawable getFallbackThumbnail(final Message message, int size, boolean cacheOnly) {
1087 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1088 if (thumbs != null && !thumbs.isEmpty()) {
1089 for (Element thumb : thumbs) {
1090 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1091 if (uri.getScheme().equals("data")) {
1092 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1093
1094 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1095 BitmapDrawable cached = (BitmapDrawable) cache.get(parts[1]);
1096 if (cached != null || cacheOnly) return cached;
1097
1098 byte[] data;
1099 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1100 String[] parts2 = parts[0].split(";", 2);
1101 parts[0] = parts2[0];
1102 data = Base64.decode(parts[1], 0);
1103 } else {
1104 try {
1105 data = parts[1].getBytes("UTF-8");
1106 } catch (final IOException e) {
1107 data = new byte[0];
1108 }
1109 }
1110
1111 if (parts[0].equals("image/blurhash")) {
1112 int width = message.getFileParams().width;
1113 if (width < 1 && thumb.getAttribute("width") != null) width = Integer.parseInt(thumb.getAttribute("width"));
1114 if (width < 1) width = 1920;
1115
1116 int height = message.getFileParams().height;
1117 if (height < 1 && thumb.getAttribute("height") != null) height = Integer.parseInt(thumb.getAttribute("height"));
1118 if (height < 1) height = 1080;
1119 Rect r = rectForSize(width, height, size);
1120
1121 Bitmap blurhash = BlurHashDecoder.INSTANCE.decode(parts[1], r.width(), r.height(), 1.0f, false);
1122 if (blurhash != null) {
1123 cached = new BitmapDrawable(blurhash);
1124 cache.put(parts[1], cached);
1125 return cached;
1126 }
1127 } else if (parts[0].equals("image/thumbhash")) {
1128 ThumbHash.Image image;
1129 try {
1130 image = ThumbHash.thumbHashToRGBA(data);
1131 } catch (final Exception e) {
1132 continue;
1133 }
1134 int[] pixels = new int[image.width * image.height];
1135 for (int i = 0; i < pixels.length; i++) {
1136 pixels[i] = Color.argb(image.rgba[(i*4)+3] & 0xff, image.rgba[i*4] & 0xff, image.rgba[(i*4)+1] & 0xff, image.rgba[(i*4)+2] & 0xff);
1137 }
1138 cached = new BitmapDrawable(Bitmap.createBitmap(pixels, image.width, image.height, Bitmap.Config.ARGB_8888));
1139 cache.put(parts[1], cached);
1140 return cached;
1141 }
1142 }
1143 }
1144 }
1145
1146 return null;
1147 }
1148
1149 public Drawable getThumbnail(Message message, Resources res, int size, boolean cacheOnly) throws IOException {
1150 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1151 DownloadableFile file = getFile(message);
1152 Drawable thumbnail = cache.get(file.getAbsolutePath());
1153 if (thumbnail != null) return thumbnail;
1154
1155 if ((thumbnail == null) && (!cacheOnly)) {
1156 synchronized (THUMBNAIL_LOCK) {
1157 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1158 if (thumbs != null && !thumbs.isEmpty()) {
1159 for (Element thumb : thumbs) {
1160 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1161 if (uri.getScheme().equals("data")) {
1162 if (android.os.Build.VERSION.SDK_INT < 28) continue;
1163 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1164
1165 byte[] data;
1166 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1167 String[] parts2 = parts[0].split(";", 2);
1168 parts[0] = parts2[0];
1169 data = Base64.decode(parts[1], 0);
1170 } else {
1171 data = parts[1].getBytes("UTF-8");
1172 }
1173
1174 if (parts[0].equals("image/blurhash")) continue; // blurhash only for fallback
1175 if (parts[0].equals("image/thumbhash")) continue; // thumbhash only for fallback
1176
1177 ImageDecoder.Source source = ImageDecoder.createSource(ByteBuffer.wrap(data));
1178 thumbnail = ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1179 int w = info.getSize().getWidth();
1180 int h = info.getSize().getHeight();
1181 Rect r = rectForSize(w, h, size);
1182 decoder.setTargetSize(r.width(), r.height());
1183 });
1184
1185 if (thumbnail != null) {
1186 cache.put(file.getAbsolutePath(), thumbnail);
1187 return thumbnail;
1188 }
1189 } else if (uri.getScheme().equals("cid")) {
1190 Cid cid = BobTransfer.cid(uri);
1191 if (cid == null) continue;
1192 DownloadableFile f = mXmppConnectionService.getFileForCid(cid);
1193 if (f != null && f.canRead()) {
1194 return getThumbnail(f, res, size, cacheOnly);
1195 }
1196 }
1197 }
1198 }
1199 }
1200 }
1201
1202 return getThumbnail(file, res, size, cacheOnly);
1203 }
1204
1205 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly) throws IOException {
1206 return getThumbnail(file, res, size, cacheOnly, file.getAbsolutePath());
1207 }
1208
1209 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly, String cacheKey) throws IOException {
1210 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1211 Drawable thumbnail = cache.get(cacheKey);
1212 if ((thumbnail == null) && (!cacheOnly)) {
1213 synchronized (THUMBNAIL_LOCK) {
1214 thumbnail = cache.get(cacheKey);
1215 if (thumbnail != null) {
1216 return thumbnail;
1217 }
1218 final String mime = file.getMimeType();
1219 if ("application/pdf".equals(mime)) {
1220 thumbnail = new BitmapDrawable(res, getPdfDocumentPreview(file, size));
1221 } else if (mime.startsWith("video/")) {
1222 thumbnail = new BitmapDrawable(res, getVideoPreview(file, size));
1223 } else {
1224 thumbnail = getImagePreview(file, res, size, mime);
1225 if (thumbnail == null) {
1226 throw new FileNotFoundException();
1227 }
1228 }
1229 cache.put(cacheKey, thumbnail);
1230 }
1231 }
1232 return thumbnail;
1233 }
1234
1235 public Bitmap getThumbnailBitmap(Message message, Resources res, int size) throws IOException {
1236 final Drawable drawable = getThumbnail(message, res, size, false);
1237 if (drawable == null) return null;
1238 return drawDrawable(drawable);
1239 }
1240
1241 public Bitmap getThumbnailBitmap(DownloadableFile file, Resources res, int size, String cacheKey) throws IOException {
1242 final Drawable drawable = getThumbnail(file, res, size, false, cacheKey);
1243 if (drawable == null) return null;
1244 return drawDrawable(drawable);
1245 }
1246
1247 public static Rect rectForSize(int w, int h, int size) {
1248 int scalledW;
1249 int scalledH;
1250 if (w <= h) {
1251 scalledW = Math.max((int) (w / ((double) h / size)), 1);
1252 scalledH = size;
1253 } else {
1254 scalledW = size;
1255 scalledH = Math.max((int) (h / ((double) w / size)), 1);
1256 }
1257
1258 if (scalledW > w || scalledH > h) return new Rect(0, 0, w, h);
1259
1260 return new Rect(0, 0, scalledW, scalledH);
1261 }
1262
1263 private Drawable getImagePreview(File file, Resources res, int size, final String mime) throws IOException {
1264 if (android.os.Build.VERSION.SDK_INT >= 28) {
1265 ImageDecoder.Source source = ImageDecoder.createSource(file);
1266 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1267 int w = info.getSize().getWidth();
1268 int h = info.getSize().getHeight();
1269 Rect r = rectForSize(w, h, size);
1270 decoder.setTargetSize(r.width(), r.height());
1271 });
1272 } else {
1273 BitmapFactory.Options options = new BitmapFactory.Options();
1274 options.inSampleSize = calcSampleSize(file, size);
1275 Bitmap bitmap = null;
1276 try {
1277 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1278 } catch (OutOfMemoryError e) {
1279 options.inSampleSize *= 2;
1280 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1281 }
1282 if (bitmap == null) return null;
1283
1284 bitmap = resize(bitmap, size);
1285 bitmap = rotate(bitmap, getRotation(file));
1286 if (mime.equals("image/gif")) {
1287 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
1288 drawOverlay(withGifOverlay, paintOverlayBlack(withGifOverlay) ? R.drawable.play_gif_black : R.drawable.play_gif_white, 1.0f);
1289 bitmap.recycle();
1290 bitmap = withGifOverlay;
1291 }
1292 return new BitmapDrawable(res, bitmap);
1293 }
1294 }
1295
1296 protected Bitmap drawDrawable(Drawable drawable) {
1297 Bitmap bitmap = null;
1298
1299 if (drawable instanceof BitmapDrawable) {
1300 bitmap = ((BitmapDrawable) drawable).getBitmap();
1301 if (bitmap != null) return bitmap;
1302 }
1303
1304 bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
1305 Canvas canvas = new Canvas(bitmap);
1306 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
1307 drawable.draw(canvas);
1308 return bitmap;
1309 }
1310
1311 private void drawOverlay(Bitmap bitmap, int resource, float factor) {
1312 Bitmap overlay =
1313 BitmapFactory.decodeResource(mXmppConnectionService.getResources(), resource);
1314 Canvas canvas = new Canvas(bitmap);
1315 float targetSize = Math.min(canvas.getWidth(), canvas.getHeight()) * factor;
1316 Log.d(
1317 Config.LOGTAG,
1318 "target size overlay: "
1319 + targetSize
1320 + " overlay bitmap size was "
1321 + overlay.getHeight());
1322 float left = (canvas.getWidth() - targetSize) / 2.0f;
1323 float top = (canvas.getHeight() - targetSize) / 2.0f;
1324 RectF dst = new RectF(left, top, left + targetSize - 1, top + targetSize - 1);
1325 canvas.drawBitmap(overlay, null, dst, createAntiAliasingPaint());
1326 }
1327
1328 /** https://stackoverflow.com/a/3943023/210897 */
1329 private boolean paintOverlayBlack(final Bitmap bitmap) {
1330 final int h = bitmap.getHeight();
1331 final int w = bitmap.getWidth();
1332 int record = 0;
1333 for (int y = Math.round(h * IGNORE_PADDING); y < h - Math.round(h * IGNORE_PADDING); ++y) {
1334 for (int x = Math.round(w * IGNORE_PADDING);
1335 x < w - Math.round(w * IGNORE_PADDING);
1336 ++x) {
1337 int pixel = bitmap.getPixel(x, y);
1338 if ((Color.red(pixel) * 0.299
1339 + Color.green(pixel) * 0.587
1340 + Color.blue(pixel) * 0.114)
1341 > 186) {
1342 --record;
1343 } else {
1344 ++record;
1345 }
1346 }
1347 }
1348 return record < 0;
1349 }
1350
1351 private boolean paintOverlayBlackPdf(final Bitmap bitmap) {
1352 final int h = bitmap.getHeight();
1353 final int w = bitmap.getWidth();
1354 int white = 0;
1355 for (int y = 0; y < h; ++y) {
1356 for (int x = 0; x < w; ++x) {
1357 int pixel = bitmap.getPixel(x, y);
1358 if ((Color.red(pixel) * 0.299
1359 + Color.green(pixel) * 0.587
1360 + Color.blue(pixel) * 0.114)
1361 > 186) {
1362 white++;
1363 }
1364 }
1365 }
1366 return white > (h * w * 0.4f);
1367 }
1368
1369 private Bitmap cropCenterSquareVideo(Uri uri, int size) {
1370 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1371 Bitmap frame;
1372 try {
1373 metadataRetriever.setDataSource(mXmppConnectionService, uri);
1374 frame = metadataRetriever.getFrameAtTime(0);
1375 metadataRetriever.release();
1376 return cropCenterSquare(frame, size);
1377 } catch (Exception e) {
1378 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1379 frame.eraseColor(0xff000000);
1380 return frame;
1381 }
1382 }
1383
1384 private Bitmap getVideoPreview(final File file, final int size) {
1385 final MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1386 Bitmap frame;
1387 try {
1388 metadataRetriever.setDataSource(file.getAbsolutePath());
1389 frame = metadataRetriever.getFrameAtTime(0);
1390 metadataRetriever.release();
1391 frame = resize(frame, size);
1392 } catch (IOException | RuntimeException e) {
1393 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1394 frame.eraseColor(0xff000000);
1395 }
1396 drawOverlay(
1397 frame,
1398 paintOverlayBlack(frame)
1399 ? R.drawable.play_video_black
1400 : R.drawable.play_video_white,
1401 0.75f);
1402 return frame;
1403 }
1404
1405 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1406 private Bitmap getPdfDocumentPreview(final File file, final int size) {
1407 try {
1408 final ParcelFileDescriptor fileDescriptor =
1409 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1410 final Bitmap rendered = renderPdfDocument(fileDescriptor, size, true);
1411 drawOverlay(
1412 rendered,
1413 paintOverlayBlackPdf(rendered)
1414 ? R.drawable.open_pdf_black
1415 : R.drawable.open_pdf_white,
1416 0.75f);
1417 return rendered;
1418 } catch (final IOException | SecurityException e) {
1419 Log.d(Config.LOGTAG, "unable to render PDF document preview", e);
1420 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1421 placeholder.eraseColor(0xff000000);
1422 return placeholder;
1423 }
1424 }
1425
1426 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1427 private Bitmap cropCenterSquarePdf(final Uri uri, final int size) {
1428 try {
1429 ParcelFileDescriptor fileDescriptor =
1430 mXmppConnectionService.getContentResolver().openFileDescriptor(uri, "r");
1431 final Bitmap bitmap = renderPdfDocument(fileDescriptor, size, false);
1432 return cropCenterSquare(bitmap, size);
1433 } catch (Exception e) {
1434 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1435 placeholder.eraseColor(0xff000000);
1436 return placeholder;
1437 }
1438 }
1439
1440 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1441 private Bitmap renderPdfDocument(
1442 ParcelFileDescriptor fileDescriptor, int targetSize, boolean fit) throws IOException {
1443 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1444 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1445 final Dimensions dimensions =
1446 scalePdfDimensions(
1447 new Dimensions(page.getHeight(), page.getWidth()), targetSize, fit);
1448 final Bitmap rendered =
1449 Bitmap.createBitmap(dimensions.width, dimensions.height, Bitmap.Config.ARGB_8888);
1450 rendered.eraseColor(0xffffffff);
1451 page.render(rendered, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
1452 page.close();
1453 pdfRenderer.close();
1454 fileDescriptor.close();
1455 return rendered;
1456 }
1457
1458 public Uri getTakePhotoUri() {
1459 final String filename =
1460 String.format("IMG_%s.%s", IMAGE_DATE_FORMAT.format(new Date()), "jpg");
1461 final File directory;
1462 if (Config.ONLY_INTERNAL_STORAGE) {
1463 directory = new File(mXmppConnectionService.getCacheDir(), "Camera");
1464 } else {
1465 directory =
1466 new File(
1467 Environment.getExternalStoragePublicDirectory(
1468 Environment.DIRECTORY_DCIM),
1469 "Camera");
1470 }
1471 final File file = new File(directory, filename);
1472 file.getParentFile().mkdirs();
1473 return getUriForFile(mXmppConnectionService, file);
1474 }
1475
1476 public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
1477
1478 final Avatar uncompressAvatar = getUncompressedAvatar(image);
1479 if (uncompressAvatar != null
1480 && uncompressAvatar.image.length() <= Config.AVATAR_CHAR_LIMIT) {
1481 return uncompressAvatar;
1482 }
1483 if (uncompressAvatar != null) {
1484 Log.d(
1485 Config.LOGTAG,
1486 "uncompressed avatar exceeded char limit by "
1487 + (uncompressAvatar.image.length() - Config.AVATAR_CHAR_LIMIT));
1488 }
1489
1490 Bitmap bm = cropCenterSquare(image, size);
1491 if (bm == null) {
1492 return null;
1493 }
1494 if (hasAlpha(bm)) {
1495 Log.d(Config.LOGTAG, "alpha in avatar detected; uploading as PNG");
1496 bm.recycle();
1497 bm = cropCenterSquare(image, 96);
1498 return getPepAvatar(bm, Bitmap.CompressFormat.PNG, 100);
1499 }
1500 return getPepAvatar(bm, format, 100);
1501 }
1502
1503 private Avatar getUncompressedAvatar(Uri uri) {
1504 Bitmap bitmap = null;
1505 try {
1506 bitmap =
1507 BitmapFactory.decodeStream(
1508 mXmppConnectionService.getContentResolver().openInputStream(uri));
1509 return getPepAvatar(bitmap, Bitmap.CompressFormat.PNG, 100);
1510 } catch (Exception e) {
1511 return null;
1512 } finally {
1513 if (bitmap != null) {
1514 bitmap.recycle();
1515 }
1516 }
1517 }
1518
1519 private Avatar getPepAvatar(Bitmap bitmap, Bitmap.CompressFormat format, int quality) {
1520 try {
1521 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1522 Base64OutputStream mBase64OutputStream =
1523 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1524 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1525 DigestOutputStream mDigestOutputStream =
1526 new DigestOutputStream(mBase64OutputStream, digest);
1527 if (!bitmap.compress(format, quality, mDigestOutputStream)) {
1528 return null;
1529 }
1530 mDigestOutputStream.flush();
1531 mDigestOutputStream.close();
1532 long chars = mByteArrayOutputStream.size();
1533 if (format != Bitmap.CompressFormat.PNG
1534 && quality >= 50
1535 && chars >= Config.AVATAR_CHAR_LIMIT) {
1536 int q = quality - 2;
1537 Log.d(
1538 Config.LOGTAG,
1539 "avatar char length was " + chars + " reducing quality to " + q);
1540 return getPepAvatar(bitmap, format, q);
1541 }
1542 Log.d(Config.LOGTAG, "settled on char length " + chars + " with quality=" + quality);
1543 final Avatar avatar = new Avatar();
1544 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1545 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1546 if (format.equals(Bitmap.CompressFormat.WEBP)) {
1547 avatar.type = "image/webp";
1548 } else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1549 avatar.type = "image/jpeg";
1550 } else if (format.equals(Bitmap.CompressFormat.PNG)) {
1551 avatar.type = "image/png";
1552 }
1553 avatar.width = bitmap.getWidth();
1554 avatar.height = bitmap.getHeight();
1555 return avatar;
1556 } catch (OutOfMemoryError e) {
1557 Log.d(Config.LOGTAG, "unable to convert avatar to base64 due to low memory");
1558 return null;
1559 } catch (Exception e) {
1560 return null;
1561 }
1562 }
1563
1564 public Avatar getStoredPepAvatar(String hash) {
1565 if (hash == null) {
1566 return null;
1567 }
1568 Avatar avatar = new Avatar();
1569 final File file = getAvatarFile(hash);
1570 FileInputStream is = null;
1571 try {
1572 avatar.size = file.length();
1573 BitmapFactory.Options options = new BitmapFactory.Options();
1574 options.inJustDecodeBounds = true;
1575 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1576 is = new FileInputStream(file);
1577 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1578 Base64OutputStream mBase64OutputStream =
1579 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1580 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1581 DigestOutputStream os = new DigestOutputStream(mBase64OutputStream, digest);
1582 byte[] buffer = new byte[4096];
1583 int length;
1584 while ((length = is.read(buffer)) > 0) {
1585 os.write(buffer, 0, length);
1586 }
1587 os.flush();
1588 os.close();
1589 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1590 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1591 avatar.height = options.outHeight;
1592 avatar.width = options.outWidth;
1593 avatar.type = options.outMimeType;
1594 return avatar;
1595 } catch (NoSuchAlgorithmException | IOException e) {
1596 return null;
1597 } finally {
1598 close(is);
1599 }
1600 }
1601
1602 public boolean isAvatarCached(Avatar avatar) {
1603 final File file = getAvatarFile(avatar.getFilename());
1604 return file.exists();
1605 }
1606
1607 public boolean save(final Avatar avatar) {
1608 File file;
1609 if (isAvatarCached(avatar)) {
1610 file = getAvatarFile(avatar.getFilename());
1611 avatar.size = file.length();
1612 } else {
1613 file =
1614 new File(
1615 mXmppConnectionService.getCacheDir().getAbsolutePath()
1616 + "/"
1617 + UUID.randomUUID().toString());
1618 if (file.getParentFile().mkdirs()) {
1619 Log.d(Config.LOGTAG, "created cache directory");
1620 }
1621 OutputStream os = null;
1622 try {
1623 if (!file.createNewFile()) {
1624 Log.d(
1625 Config.LOGTAG,
1626 "unable to create temporary file " + file.getAbsolutePath());
1627 }
1628 os = new FileOutputStream(file);
1629 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1630 digest.reset();
1631 DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
1632 final byte[] bytes = avatar.getImageAsBytes();
1633 mDigestOutputStream.write(bytes);
1634 mDigestOutputStream.flush();
1635 mDigestOutputStream.close();
1636 String sha1sum = CryptoHelper.bytesToHex(digest.digest());
1637 if (sha1sum.equals(avatar.sha1sum)) {
1638 final File outputFile = getAvatarFile(avatar.getFilename());
1639 if (outputFile.getParentFile().mkdirs()) {
1640 Log.d(Config.LOGTAG, "created avatar directory");
1641 }
1642 final File avatarFile = getAvatarFile(avatar.getFilename());
1643 if (!file.renameTo(avatarFile)) {
1644 Log.d(
1645 Config.LOGTAG,
1646 "unable to rename " + file.getAbsolutePath() + " to " + outputFile);
1647 return false;
1648 }
1649 } else {
1650 Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
1651 if (!file.delete()) {
1652 Log.d(Config.LOGTAG, "unable to delete temporary file");
1653 }
1654 return false;
1655 }
1656 avatar.size = bytes.length;
1657 } catch (IllegalArgumentException | IOException | NoSuchAlgorithmException e) {
1658 return false;
1659 } finally {
1660 close(os);
1661 }
1662 }
1663 return true;
1664 }
1665
1666 public void deleteHistoricAvatarPath() {
1667 delete(getHistoricAvatarPath());
1668 }
1669
1670 private void delete(final File file) {
1671 if (file.isDirectory()) {
1672 final File[] files = file.listFiles();
1673 if (files != null) {
1674 for (final File f : files) {
1675 delete(f);
1676 }
1677 }
1678 }
1679 if (file.delete()) {
1680 Log.d(Config.LOGTAG, "deleted " + file.getAbsolutePath());
1681 }
1682 }
1683
1684 private File getHistoricAvatarPath() {
1685 return new File(mXmppConnectionService.getFilesDir(), "/avatars/");
1686 }
1687
1688 public File getAvatarFile(String avatar) {
1689 return new File(mXmppConnectionService.getCacheDir(), "/avatars/" + avatar);
1690 }
1691
1692 public Uri getAvatarUri(String avatar) {
1693 return Uri.fromFile(getAvatarFile(avatar));
1694 }
1695
1696 public Bitmap cropCenterSquare(Uri image, int size) {
1697 if (image == null) {
1698 return null;
1699 }
1700 InputStream is = null;
1701 try {
1702 BitmapFactory.Options options = new BitmapFactory.Options();
1703 options.inSampleSize = calcSampleSize(image, size);
1704 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1705 if (is == null) {
1706 return null;
1707 }
1708 Bitmap input = BitmapFactory.decodeStream(is, null, options);
1709 if (input == null) {
1710 return null;
1711 } else {
1712 input = rotate(input, getRotation(image));
1713 return cropCenterSquare(input, size);
1714 }
1715 } catch (FileNotFoundException | SecurityException e) {
1716 Log.d(Config.LOGTAG, "unable to open file " + image.toString(), e);
1717 return null;
1718 } finally {
1719 close(is);
1720 }
1721 }
1722
1723 public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
1724 if (image == null) {
1725 return null;
1726 }
1727 InputStream is = null;
1728 try {
1729 BitmapFactory.Options options = new BitmapFactory.Options();
1730 options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
1731 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1732 if (is == null) {
1733 return null;
1734 }
1735 Bitmap source = BitmapFactory.decodeStream(is, null, options);
1736 if (source == null) {
1737 return null;
1738 }
1739 int sourceWidth = source.getWidth();
1740 int sourceHeight = source.getHeight();
1741 float xScale = (float) newWidth / sourceWidth;
1742 float yScale = (float) newHeight / sourceHeight;
1743 float scale = Math.max(xScale, yScale);
1744 float scaledWidth = scale * sourceWidth;
1745 float scaledHeight = scale * sourceHeight;
1746 float left = (newWidth - scaledWidth) / 2;
1747 float top = (newHeight - scaledHeight) / 2;
1748
1749 RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
1750 Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
1751 Canvas canvas = new Canvas(dest);
1752 canvas.drawBitmap(source, null, targetRect, createAntiAliasingPaint());
1753 if (source.isRecycled()) {
1754 source.recycle();
1755 }
1756 return dest;
1757 } catch (SecurityException e) {
1758 return null; // android 6.0 with revoked permissions for example
1759 } catch (FileNotFoundException e) {
1760 return null;
1761 } finally {
1762 close(is);
1763 }
1764 }
1765
1766 public Bitmap cropCenterSquare(Bitmap input, int size) {
1767 int w = input.getWidth();
1768 int h = input.getHeight();
1769
1770 float scale = Math.max((float) size / h, (float) size / w);
1771
1772 float outWidth = scale * w;
1773 float outHeight = scale * h;
1774 float left = (size - outWidth) / 2;
1775 float top = (size - outHeight) / 2;
1776 RectF target = new RectF(left, top, left + outWidth, top + outHeight);
1777
1778 Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1779 Canvas canvas = new Canvas(output);
1780 canvas.drawBitmap(input, null, target, createAntiAliasingPaint());
1781 if (!input.isRecycled()) {
1782 input.recycle();
1783 }
1784 return output;
1785 }
1786
1787 private int calcSampleSize(Uri image, int size)
1788 throws FileNotFoundException, SecurityException {
1789 final BitmapFactory.Options options = new BitmapFactory.Options();
1790 options.inJustDecodeBounds = true;
1791 final InputStream inputStream =
1792 mXmppConnectionService.getContentResolver().openInputStream(image);
1793 BitmapFactory.decodeStream(inputStream, null, options);
1794 close(inputStream);
1795 return calcSampleSize(options, size);
1796 }
1797
1798 public void updateFileParams(Message message) {
1799 updateFileParams(message, null);
1800 }
1801
1802 public void updateFileParams(final Message message, final String url) {
1803 updateFileParams(message, url, true);
1804 }
1805
1806 public void updateFileParams(final Message message, String url, boolean updateCids) {
1807 final boolean encrypted =
1808 message.getEncryption() == Message.ENCRYPTION_PGP
1809 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED;
1810 final DownloadableFile file = getFile(message);
1811 final String mime = file.getMimeType();
1812 final boolean privateMessage = message.isPrivateMessage();
1813 final boolean image =
1814 message.getType() == Message.TYPE_IMAGE
1815 || (mime != null && mime.startsWith("image/"));
1816 Message.FileParams fileParams = message.getFileParams();
1817 if (fileParams == null) fileParams = new Message.FileParams();
1818 Cid[] cids = new Cid[0];
1819 try {
1820 cids = calculateCids(new FileInputStream(file));
1821 fileParams.setCids(List.of(cids));
1822 } catch (final IOException | NoSuchAlgorithmException e) { }
1823 if (url == null) {
1824 for (Cid cid : cids) {
1825 url = mXmppConnectionService.getUrlForCid(cid);
1826 if (url != null) {
1827 fileParams.url = url;
1828 break;
1829 }
1830 }
1831 } else {
1832 fileParams.url = url;
1833 }
1834 if (fileParams.getName() == null) fileParams.setName(file.getName());
1835 fileParams.setMediaType(mime);
1836 if (encrypted && !file.exists()) {
1837 Log.d(Config.LOGTAG, "skipping updateFileParams because file is encrypted");
1838 final DownloadableFile encryptedFile = getFile(message, false);
1839 fileParams.size = encryptedFile.getSize();
1840 } else {
1841 Log.d(Config.LOGTAG, "running updateFileParams");
1842 final boolean ambiguous = MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime);
1843 final boolean video = mime != null && mime.startsWith("video/");
1844 final boolean audio = mime != null && mime.startsWith("audio/");
1845 final boolean pdf = "application/pdf".equals(mime);
1846 fileParams.size = file.getSize();
1847 if (ambiguous) {
1848 try {
1849 final Dimensions dimensions = getVideoDimensions(file);
1850 if (dimensions.valid()) {
1851 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is video");
1852 fileParams.width = dimensions.width;
1853 fileParams.height = dimensions.height;
1854 } else {
1855 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1856 fileParams.runtime = getMediaRuntime(file);
1857 }
1858 } catch (final NotAVideoFile e) {
1859 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1860 fileParams.runtime = getMediaRuntime(file);
1861 }
1862 } else if (image || video || pdf) {
1863 try {
1864 final Dimensions dimensions;
1865 if (video) {
1866 dimensions = getVideoDimensions(file);
1867 } else if (pdf) {
1868 dimensions = getPdfDocumentDimensions(file);
1869 } else {
1870 dimensions = getImageDimensions(file);
1871 }
1872 if (dimensions.valid()) {
1873 fileParams.width = dimensions.width;
1874 fileParams.height = dimensions.height;
1875 }
1876 } catch (NotAVideoFile notAVideoFile) {
1877 Log.d(
1878 Config.LOGTAG,
1879 "file with mime type " + file.getMimeType() + " was not a video file");
1880 // fall threw
1881 }
1882 } else if (audio) {
1883 fileParams.runtime = getMediaRuntime(file);
1884 }
1885 try {
1886 Bitmap thumb = getThumbnailBitmap(file, mXmppConnectionService.getResources(), 100, file.getAbsolutePath() + " x 100");
1887 if (thumb != null) {
1888 int[] pixels = new int[thumb.getWidth() * thumb.getHeight()];
1889 byte[] rgba = new byte[pixels.length * 4];
1890 try {
1891 thumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1892 } catch (final IllegalStateException e) {
1893 Bitmap softThumb = thumb.copy(Bitmap.Config.ARGB_8888, false);
1894 softThumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1895 softThumb.recycle();
1896 }
1897 for (int i = 0; i < pixels.length; i++) {
1898 rgba[i*4] = (byte)((pixels[i] >> 16) & 0xff);
1899 rgba[(i*4)+1] = (byte)((pixels[i] >> 8) & 0xff);
1900 rgba[(i*4)+2] = (byte)(pixels[i] & 0xff);
1901 rgba[(i*4)+3] = (byte)((pixels[i] >> 24) & 0xff);
1902 }
1903 fileParams.addThumbnail(thumb.getWidth(), thumb.getHeight(), "image/thumbhash", "data:image/thumbhash;base64," + Base64.encodeToString(ThumbHash.rgbaToThumbHash(thumb.getWidth(), thumb.getHeight(), rgba), Base64.NO_WRAP));
1904 }
1905 } catch (final IOException e) { }
1906 }
1907 message.setFileParams(fileParams);
1908 message.setDeleted(false);
1909 message.setType(
1910 privateMessage
1911 ? Message.TYPE_PRIVATE_FILE
1912 : (image ? Message.TYPE_IMAGE : Message.TYPE_FILE));
1913
1914 if (updateCids) {
1915 try {
1916 for (int i = 0; i < cids.length; i++) {
1917 mXmppConnectionService.saveCid(cids[i], file);
1918 }
1919 } catch (XmppConnectionService.BlockedMediaException e) { }
1920 }
1921 }
1922
1923 private int getMediaRuntime(final File file) {
1924 try {
1925 final MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
1926 mediaMetadataRetriever.setDataSource(file.toString());
1927 final String value =
1928 mediaMetadataRetriever.extractMetadata(
1929 MediaMetadataRetriever.METADATA_KEY_DURATION);
1930 if (Strings.isNullOrEmpty(value)) {
1931 return 0;
1932 }
1933 return Integer.parseInt(value);
1934 } catch (final Exception e) {
1935 return 0;
1936 }
1937 }
1938
1939 private Dimensions getImageDimensions(File file) {
1940 final BitmapFactory.Options options = new BitmapFactory.Options();
1941 options.inJustDecodeBounds = true;
1942 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1943 final int rotation = getRotation(file);
1944 final boolean rotated = rotation == 90 || rotation == 270;
1945 final int imageHeight = rotated ? options.outWidth : options.outHeight;
1946 final int imageWidth = rotated ? options.outHeight : options.outWidth;
1947 return new Dimensions(imageHeight, imageWidth);
1948 }
1949
1950 private Dimensions getVideoDimensions(File file) throws NotAVideoFile {
1951 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1952 try {
1953 metadataRetriever.setDataSource(file.getAbsolutePath());
1954 } catch (RuntimeException e) {
1955 throw new NotAVideoFile(e);
1956 }
1957 return getVideoDimensions(metadataRetriever);
1958 }
1959
1960 private Dimensions getPdfDocumentDimensions(final File file) {
1961 final ParcelFileDescriptor fileDescriptor;
1962 try {
1963 fileDescriptor = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1964 if (fileDescriptor == null) {
1965 return new Dimensions(0, 0);
1966 }
1967 } catch (final FileNotFoundException e) {
1968 return new Dimensions(0, 0);
1969 }
1970 try {
1971 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1972 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1973 final int height = page.getHeight();
1974 final int width = page.getWidth();
1975 page.close();
1976 pdfRenderer.close();
1977 return scalePdfDimensions(new Dimensions(height, width));
1978 } catch (final IOException | SecurityException e) {
1979 Log.d(Config.LOGTAG, "unable to get dimensions for pdf document", e);
1980 return new Dimensions(0, 0);
1981 }
1982 }
1983
1984 private Dimensions scalePdfDimensions(Dimensions in) {
1985 final DisplayMetrics displayMetrics =
1986 mXmppConnectionService.getResources().getDisplayMetrics();
1987 final int target = (int) (displayMetrics.density * 288);
1988 return scalePdfDimensions(in, target, true);
1989 }
1990
1991 private static Dimensions scalePdfDimensions(
1992 final Dimensions in, final int target, final boolean fit) {
1993 final int w, h;
1994 if (fit == (in.width <= in.height)) {
1995 w = Math.max((int) (in.width / ((double) in.height / target)), 1);
1996 h = target;
1997 } else {
1998 w = target;
1999 h = Math.max((int) (in.height / ((double) in.width / target)), 1);
2000 }
2001 return new Dimensions(h, w);
2002 }
2003
2004 public Bitmap getAvatar(String avatar, int size) {
2005 if (avatar == null) {
2006 return null;
2007 }
2008 Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
2009 return bm;
2010 }
2011
2012 private static class Dimensions {
2013 public final int width;
2014 public final int height;
2015
2016 Dimensions(int height, int width) {
2017 this.width = width;
2018 this.height = height;
2019 }
2020
2021 public int getMin() {
2022 return Math.min(width, height);
2023 }
2024
2025 public boolean valid() {
2026 return width > 0 && height > 0;
2027 }
2028 }
2029
2030 private static class NotAVideoFile extends Exception {
2031 public NotAVideoFile(Throwable t) {
2032 super(t);
2033 }
2034
2035 public NotAVideoFile() {
2036 super();
2037 }
2038 }
2039
2040 public static class ImageCompressionException extends Exception {
2041
2042 ImageCompressionException(String message) {
2043 super(message);
2044 }
2045 }
2046
2047 public static class FileCopyException extends Exception {
2048 private final int resId;
2049
2050 private FileCopyException(@StringRes int resId) {
2051 this.resId = resId;
2052 }
2053
2054 public @StringRes int getResId() {
2055 return resId;
2056 }
2057 }
2058}