1package eu.siacs.conversations.persistance;
2
3import android.content.ContentResolver;
4import android.content.Context;
5import android.content.res.AssetFileDescriptor;
6import android.content.res.Resources;
7import android.database.Cursor;
8import android.graphics.Bitmap;
9import android.graphics.BitmapFactory;
10import android.graphics.Canvas;
11import android.graphics.Color;
12import android.graphics.drawable.BitmapDrawable;
13import android.graphics.drawable.Drawable;
14import android.graphics.ImageDecoder;
15import android.graphics.Matrix;
16import android.graphics.Paint;
17import android.graphics.Rect;
18import android.graphics.RectF;
19import android.graphics.pdf.PdfRenderer;
20import android.media.MediaMetadataRetriever;
21import android.media.MediaScannerConnection;
22import android.net.Uri;
23import android.os.Build;
24import android.os.Environment;
25import android.os.ParcelFileDescriptor;
26import android.provider.MediaStore;
27import android.provider.OpenableColumns;
28import android.system.Os;
29import android.system.StructStat;
30import android.util.Base64;
31import android.util.Base64OutputStream;
32import android.util.DisplayMetrics;
33import android.util.Pair;
34import android.util.Log;
35import android.util.LruCache;
36
37import androidx.annotation.RequiresApi;
38import androidx.annotation.StringRes;
39import androidx.core.content.FileProvider;
40import androidx.documentfile.provider.DocumentFile;
41import androidx.exifinterface.media.ExifInterface;
42
43import com.caverock.androidsvg.SVG;
44import com.caverock.androidsvg.SVGParseException;
45
46import com.cheogram.android.BobTransfer;
47
48import com.google.common.base.Strings;
49import com.google.common.collect.ImmutableList;
50import com.google.common.io.ByteStreams;
51
52import com.madebyevan.thumbhash.ThumbHash;
53
54import com.wolt.blurhashkt.BlurHashDecoder;
55
56import java.io.ByteArrayOutputStream;
57import java.io.Closeable;
58import java.io.File;
59import java.io.FileDescriptor;
60import java.io.FileInputStream;
61import java.io.FileNotFoundException;
62import java.io.FileOutputStream;
63import java.io.IOException;
64import java.io.InputStream;
65import java.io.OutputStream;
66import java.net.ServerSocket;
67import java.net.Socket;
68import java.nio.ByteBuffer;
69import java.security.DigestOutputStream;
70import java.security.MessageDigest;
71import java.security.NoSuchAlgorithmException;
72import java.text.SimpleDateFormat;
73import java.util.ArrayList;
74import java.util.Arrays;
75import java.util.Date;
76import java.util.List;
77import java.util.Locale;
78import java.util.UUID;
79
80import io.ipfs.cid.Cid;
81
82import eu.siacs.conversations.Config;
83import eu.siacs.conversations.R;
84import eu.siacs.conversations.entities.DownloadableFile;
85import eu.siacs.conversations.entities.Message;
86import eu.siacs.conversations.services.AttachFileToConversationRunnable;
87import eu.siacs.conversations.services.XmppConnectionService;
88import eu.siacs.conversations.ui.adapter.MediaAdapter;
89import eu.siacs.conversations.ui.util.Attachment;
90import eu.siacs.conversations.utils.CryptoHelper;
91import eu.siacs.conversations.utils.FileUtils;
92import eu.siacs.conversations.utils.FileWriterException;
93import eu.siacs.conversations.utils.MimeUtils;
94import eu.siacs.conversations.xmpp.pep.Avatar;
95import eu.siacs.conversations.xml.Element;
96
97public class FileBackend {
98
99 private static final Object THUMBNAIL_LOCK = new Object();
100
101 private static final SimpleDateFormat IMAGE_DATE_FORMAT =
102 new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US);
103
104 private static final String FILE_PROVIDER = ".files";
105 private static final float IGNORE_PADDING = 0.15f;
106 private final XmppConnectionService mXmppConnectionService;
107
108 private static final List<String> STORAGE_TYPES;
109
110 static {
111 final ImmutableList.Builder<String> builder =
112 new ImmutableList.Builder<String>()
113 .add(
114 Environment.DIRECTORY_DOWNLOADS,
115 Environment.DIRECTORY_PICTURES,
116 Environment.DIRECTORY_MOVIES);
117 if (Build.VERSION.SDK_INT >= 19) {
118 builder.add(Environment.DIRECTORY_DOCUMENTS);
119 }
120 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
121 builder.add(Environment.DIRECTORY_RECORDINGS);
122 }
123 STORAGE_TYPES = builder.build();
124 }
125
126 public FileBackend(XmppConnectionService service) {
127 this.mXmppConnectionService = service;
128 }
129
130 public static long getFileSize(Context context, Uri uri) {
131 try (final Cursor cursor =
132 context.getContentResolver().query(uri, null, null, null, null)) {
133 if (cursor != null && cursor.moveToFirst()) {
134 final int index = cursor.getColumnIndex(OpenableColumns.SIZE);
135 if (index == -1) {
136 return -1;
137 }
138 return cursor.getLong(index);
139 }
140 return -1;
141 } catch (final Exception ignored) {
142 return -1;
143 }
144 }
145
146 public static boolean allFilesUnderSize(
147 Context context, List<Attachment> attachments, long max) {
148 final boolean compressVideo =
149 !AttachFileToConversationRunnable.getVideoCompression(context)
150 .equals("uncompressed");
151 if (max <= 0) {
152 Log.d(Config.LOGTAG, "server did not report max file size for http upload");
153 return true; // exception to be compatible with HTTP Upload < v0.2
154 }
155 for (Attachment attachment : attachments) {
156 if (attachment.getType() != Attachment.Type.FILE) {
157 continue;
158 }
159 String mime = attachment.getMime();
160 if (mime != null && mime.startsWith("video/") && compressVideo) {
161 try {
162 Dimensions dimensions =
163 FileBackend.getVideoDimensions(context, attachment.getUri());
164 if (dimensions.getMin() > 720) {
165 Log.d(
166 Config.LOGTAG,
167 "do not consider video file with min width larger than 720 for size check");
168 continue;
169 }
170 } catch (final IOException | NotAVideoFile e) {
171 // ignore and fall through
172 }
173 }
174 if (FileBackend.getFileSize(context, attachment.getUri()) > max) {
175 Log.d(
176 Config.LOGTAG,
177 "not all files are under "
178 + max
179 + " bytes. suggesting falling back to jingle");
180 return false;
181 }
182 }
183 return true;
184 }
185
186 public static File getBackupDirectory(final Context context) {
187 final File conversationsDownloadDirectory =
188 new File(
189 Environment.getExternalStoragePublicDirectory(
190 Environment.DIRECTORY_DOWNLOADS),
191 context.getString(R.string.app_name));
192 return new File(conversationsDownloadDirectory, "Backup");
193 }
194
195 public static File getLegacyBackupDirectory(final String app) {
196 final File appDirectory = new File(Environment.getExternalStorageDirectory(), app);
197 return new File(appDirectory, "Backup");
198 }
199
200 private static Bitmap rotate(final Bitmap bitmap, final int degree) {
201 if (degree == 0) {
202 return bitmap;
203 }
204 final int w = bitmap.getWidth();
205 final int h = bitmap.getHeight();
206 final Matrix matrix = new Matrix();
207 matrix.postRotate(degree);
208 final Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
209 if (!bitmap.isRecycled()) {
210 bitmap.recycle();
211 }
212 return result;
213 }
214
215 public static boolean isPathBlacklisted(String path) {
216 final String androidDataPath =
217 Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/";
218 return path.startsWith(androidDataPath);
219 }
220
221 private static Paint createAntiAliasingPaint() {
222 Paint paint = new Paint();
223 paint.setAntiAlias(true);
224 paint.setFilterBitmap(true);
225 paint.setDither(true);
226 return paint;
227 }
228
229 public static Uri getUriForUri(Context context, Uri uri) {
230 if ("file".equals(uri.getScheme())) {
231 return getUriForFile(context, new File(uri.getPath()));
232 } else {
233 return uri;
234 }
235 }
236
237 public static Uri getUriForFile(Context context, File file) {
238 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N || Config.ONLY_INTERNAL_STORAGE) {
239 try {
240 return FileProvider.getUriForFile(context, getAuthority(context), file);
241 } catch (IllegalArgumentException e) {
242 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
243 throw new SecurityException(e);
244 } else {
245 return Uri.fromFile(file);
246 }
247 }
248 } else {
249 return Uri.fromFile(file);
250 }
251 }
252
253 public static String getAuthority(Context context) {
254 return context.getPackageName() + FILE_PROVIDER;
255 }
256
257 private static boolean hasAlpha(final Bitmap bitmap) {
258 final int w = bitmap.getWidth();
259 final int h = bitmap.getHeight();
260 final int yStep = Math.max(1, w / 100);
261 final int xStep = Math.max(1, h / 100);
262 for (int x = 0; x < w; x += xStep) {
263 for (int y = 0; y < h; y += yStep) {
264 if (Color.alpha(bitmap.getPixel(x, y)) < 255) {
265 return true;
266 }
267 }
268 }
269 return false;
270 }
271
272 private static int calcSampleSize(File image, int size) {
273 BitmapFactory.Options options = new BitmapFactory.Options();
274 options.inJustDecodeBounds = true;
275 BitmapFactory.decodeFile(image.getAbsolutePath(), options);
276 return calcSampleSize(options, size);
277 }
278
279 private static int calcSampleSize(BitmapFactory.Options options, int size) {
280 int height = options.outHeight;
281 int width = options.outWidth;
282 int inSampleSize = 1;
283
284 if (height > size || width > size) {
285 int halfHeight = height / 2;
286 int halfWidth = width / 2;
287
288 while ((halfHeight / inSampleSize) > size && (halfWidth / inSampleSize) > size) {
289 inSampleSize *= 2;
290 }
291 }
292 return inSampleSize;
293 }
294
295 private static Dimensions getVideoDimensions(Context context, Uri uri) throws NotAVideoFile, IOException {
296 MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
297 try {
298 mediaMetadataRetriever.setDataSource(context, uri);
299 } catch (RuntimeException e) {
300 throw new NotAVideoFile(e);
301 }
302 return getVideoDimensions(mediaMetadataRetriever);
303 }
304
305 private static Dimensions getVideoDimensionsOfFrame(
306 MediaMetadataRetriever mediaMetadataRetriever) {
307 Bitmap bitmap = null;
308 try {
309 bitmap = mediaMetadataRetriever.getFrameAtTime();
310 return new Dimensions(bitmap.getHeight(), bitmap.getWidth());
311 } catch (Exception e) {
312 return null;
313 } finally {
314 if (bitmap != null) {
315 bitmap.recycle();
316 }
317 }
318 }
319
320 private static Dimensions getVideoDimensions(MediaMetadataRetriever metadataRetriever)
321 throws NotAVideoFile, IOException {
322 String hasVideo =
323 metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
324 if (hasVideo == null) {
325 throw new NotAVideoFile();
326 }
327 Dimensions dimensions = getVideoDimensionsOfFrame(metadataRetriever);
328 if (dimensions != null) {
329 return dimensions;
330 }
331 final int rotation = extractRotationFromMediaRetriever(metadataRetriever);
332 boolean rotated = rotation == 90 || rotation == 270;
333 int height;
334 try {
335 String h =
336 metadataRetriever.extractMetadata(
337 MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
338 height = Integer.parseInt(h);
339 } catch (Exception e) {
340 height = -1;
341 }
342 int width;
343 try {
344 String w =
345 metadataRetriever.extractMetadata(
346 MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
347 width = Integer.parseInt(w);
348 } catch (Exception e) {
349 width = -1;
350 }
351 try {
352 metadataRetriever.release();
353 } catch (final IOException e) {
354 throw new NotAVideoFile();
355 }
356 Log.d(Config.LOGTAG, "extracted video dims " + width + "x" + height);
357 return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
358 }
359
360 private static int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
361 String r =
362 metadataRetriever.extractMetadata(
363 MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
364 try {
365 return Integer.parseInt(r);
366 } catch (Exception e) {
367 return 0;
368 }
369 }
370
371 public static void close(final Closeable stream) {
372 if (stream != null) {
373 try {
374 stream.close();
375 } catch (Exception e) {
376 Log.d(Config.LOGTAG, "unable to close stream", e);
377 }
378 }
379 }
380
381 public static void close(final Socket socket) {
382 if (socket != null) {
383 try {
384 socket.close();
385 } catch (IOException e) {
386 Log.d(Config.LOGTAG, "unable to close socket", e);
387 }
388 }
389 }
390
391 public static void close(final ServerSocket socket) {
392 if (socket != null) {
393 try {
394 socket.close();
395 } catch (IOException e) {
396 Log.d(Config.LOGTAG, "unable to close server socket", e);
397 }
398 }
399 }
400
401 public static boolean weOwnFile(final Uri uri) {
402 if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
403 return false;
404 } else {
405 return weOwnFileLollipop(uri);
406 }
407 }
408
409 private static boolean weOwnFileLollipop(final Uri uri) {
410 final String path = uri.getPath();
411 if (path == null) {
412 return false;
413 }
414 try {
415 File file = new File(path);
416 FileDescriptor fd =
417 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)
418 .getFileDescriptor();
419 StructStat st = Os.fstat(fd);
420 return st.st_uid == android.os.Process.myUid();
421 } catch (FileNotFoundException e) {
422 return false;
423 } catch (Exception e) {
424 return true;
425 }
426 }
427
428 public static Uri getMediaUri(Context context, File file) {
429 final String filePath = file.getAbsolutePath();
430 try (final Cursor cursor =
431 context.getContentResolver()
432 .query(
433 MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
434 new String[] {MediaStore.Images.Media._ID},
435 MediaStore.Images.Media.DATA + "=? ",
436 new String[] {filePath},
437 null)) {
438 if (cursor != null && cursor.moveToFirst()) {
439 final int id =
440 cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns._ID));
441 return Uri.withAppendedPath(
442 MediaStore.Images.Media.EXTERNAL_CONTENT_URI, String.valueOf(id));
443 } else {
444 return null;
445 }
446 } catch (final Exception e) {
447 return null;
448 }
449 }
450
451 public static void updateFileParams(Message message, String url, long size) {
452 Message.FileParams fileParams = new Message.FileParams();
453 fileParams.url = url;
454 fileParams.size = size;
455 message.setFileParams(fileParams);
456 }
457
458 public Bitmap getPreviewForUri(Attachment attachment, int size, boolean cacheOnly) {
459 final String key = "attachment_" + attachment.getUuid().toString() + "_" + size;
460 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
461 Drawable drawable = cache.get(key);
462 if (drawable != null || cacheOnly) {
463 return drawDrawable(drawable);
464 }
465 Bitmap bitmap = null;
466 final String mime = attachment.getMime();
467 if ("application/pdf".equals(mime)) {
468 bitmap = cropCenterSquarePdf(attachment.getUri(), size);
469 drawOverlay(
470 bitmap,
471 paintOverlayBlackPdf(bitmap)
472 ? R.drawable.open_pdf_black
473 : R.drawable.open_pdf_white,
474 0.75f);
475 } else if (mime != null && mime.startsWith("video/")) {
476 bitmap = cropCenterSquareVideo(attachment.getUri(), size);
477 drawOverlay(
478 bitmap,
479 paintOverlayBlack(bitmap)
480 ? R.drawable.play_video_black
481 : R.drawable.play_video_white,
482 0.75f);
483 } else {
484 bitmap = cropCenterSquare(attachment.getUri(), size);
485 if (bitmap != null && "image/gif".equals(mime)) {
486 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
487 drawOverlay(
488 withGifOverlay,
489 paintOverlayBlack(withGifOverlay)
490 ? R.drawable.play_gif_black
491 : R.drawable.play_gif_white,
492 1.0f);
493 bitmap.recycle();
494 bitmap = withGifOverlay;
495 }
496 }
497 if (key != null && bitmap != null) {
498 cache.put(key, new BitmapDrawable(bitmap));
499 }
500 return bitmap;
501 }
502
503 public void updateMediaScanner(File file) {
504 updateMediaScanner(file, null);
505 }
506
507 public void updateMediaScanner(File file, final Runnable callback) {
508 MediaScannerConnection.scanFile(
509 mXmppConnectionService,
510 new String[] {file.getAbsolutePath()},
511 null,
512 new MediaScannerConnection.MediaScannerConnectionClient() {
513 @Override
514 public void onMediaScannerConnected() {}
515
516 @Override
517 public void onScanCompleted(String path, Uri uri) {
518 if (callback != null && file.getAbsolutePath().equals(path)) {
519 callback.run();
520 } else {
521 Log.d(Config.LOGTAG, "media scanner scanned wrong file");
522 if (callback != null) {
523 callback.run();
524 }
525 }
526 }
527 });
528 }
529
530 public boolean deleteFile(Message message) {
531 File file = getFile(message);
532 if (file.delete()) {
533 updateMediaScanner(file);
534 return true;
535 } else {
536 return false;
537 }
538 }
539
540 public DownloadableFile getFile(Message message) {
541 return getFile(message, true);
542 }
543
544 public DownloadableFile getFileForPath(String path) {
545 return getFileForPath(
546 path,
547 MimeUtils.guessMimeTypeFromExtension(MimeUtils.extractRelevantExtension(path)));
548 }
549
550 private DownloadableFile getFileForPath(final String path, final String mime) {
551 if (path.startsWith("/")) {
552 return new DownloadableFile(path);
553 } else {
554 return getLegacyFileForFilename(path, mime);
555 }
556 }
557
558 public DownloadableFile getLegacyFileForFilename(final String filename, final String mime) {
559 if (Strings.isNullOrEmpty(mime)) {
560 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
561 } else if (mime.startsWith("image/")) {
562 return new DownloadableFile(getLegacyStorageLocation("Images"), filename);
563 } else if (mime.startsWith("video/")) {
564 return new DownloadableFile(getLegacyStorageLocation("Videos"), filename);
565 } else {
566 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
567 }
568 }
569
570 public boolean isInternalFile(final File file) {
571 final File internalFile = getFileForPath(file.getName());
572 return file.getAbsolutePath().equals(internalFile.getAbsolutePath());
573 }
574
575 public DownloadableFile getFile(Message message, boolean decrypted) {
576 final boolean encrypted =
577 !decrypted
578 && (message.getEncryption() == Message.ENCRYPTION_PGP
579 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
580 String path = message.getRelativeFilePath();
581 if (path == null) {
582 path = message.getUuid();
583 }
584 final DownloadableFile file = getFileForPath(path, message.getMimeType());
585 if (encrypted) {
586 return new DownloadableFile(
587 mXmppConnectionService.getCacheDir(),
588 String.format("%s.%s", file.getName(), "pgp"));
589 } else {
590 return file;
591 }
592 }
593
594 public List<Attachment> convertToAttachments(List<DatabaseBackend.FilePath> relativeFilePaths) {
595 final List<Attachment> attachments = new ArrayList<>();
596 for (final DatabaseBackend.FilePath relativeFilePath : relativeFilePaths) {
597 final String mime =
598 MimeUtils.guessMimeTypeFromExtension(
599 MimeUtils.extractRelevantExtension(relativeFilePath.path));
600 final File file = getFileForPath(relativeFilePath.path, mime);
601 attachments.add(Attachment.of(relativeFilePath.uuid, file, mime));
602 }
603 return attachments;
604 }
605
606 private File getLegacyStorageLocation(final String type) {
607 if (Config.ONLY_INTERNAL_STORAGE) {
608 return new File(mXmppConnectionService.getFilesDir(), type);
609 } else {
610 final File appDirectory =
611 new File(
612 Environment.getExternalStorageDirectory(),
613 mXmppConnectionService.getString(R.string.app_name));
614 final File appMediaDirectory = new File(appDirectory, "Media");
615 final String locationName =
616 String.format(
617 "%s %s", mXmppConnectionService.getString(R.string.app_name), type);
618 return new File(appMediaDirectory, locationName);
619 }
620 }
621
622 private Bitmap resize(final Bitmap originalBitmap, int size) throws IOException {
623 int w = originalBitmap.getWidth();
624 int h = originalBitmap.getHeight();
625 if (w <= 0 || h <= 0) {
626 throw new IOException("Decoded bitmap reported bounds smaller 0");
627 } else if (Math.max(w, h) > size) {
628 int scalledW;
629 int scalledH;
630 if (w <= h) {
631 scalledW = Math.max((int) (w / ((double) h / size)), 1);
632 scalledH = size;
633 } else {
634 scalledW = size;
635 scalledH = Math.max((int) (h / ((double) w / size)), 1);
636 }
637 final Bitmap result =
638 Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
639 if (!originalBitmap.isRecycled()) {
640 originalBitmap.recycle();
641 }
642 return result;
643 } else {
644 return originalBitmap;
645 }
646 }
647
648 public boolean useImageAsIs(final Uri uri) {
649 final String path = getOriginalPath(uri);
650 if (path == null || isPathBlacklisted(path)) {
651 return false;
652 }
653 final File file = new File(path);
654 long size = file.length();
655 if (size == 0
656 || size
657 >= mXmppConnectionService
658 .getResources()
659 .getInteger(R.integer.auto_accept_filesize)) {
660 return false;
661 }
662 BitmapFactory.Options options = new BitmapFactory.Options();
663 options.inJustDecodeBounds = true;
664 try {
665 for (Cid cid : calculateCids(uri)) {
666 if (mXmppConnectionService.getUrlForCid(cid) != null) return true;
667 }
668 final InputStream inputStream =
669 mXmppConnectionService.getContentResolver().openInputStream(uri);
670 BitmapFactory.decodeStream(inputStream, null, options);
671 close(inputStream);
672 if (options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
673 return false;
674 }
675 return (options.outWidth <= Config.IMAGE_SIZE
676 && options.outHeight <= Config.IMAGE_SIZE
677 && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
678 } catch (final IOException e) {
679 Log.d(Config.LOGTAG, "unable to get image dimensions", e);
680 return false;
681 }
682 }
683
684 public String getOriginalPath(Uri uri) {
685 return FileUtils.getPath(mXmppConnectionService, uri);
686 }
687
688 public void copyFileToDocumentFile(Context ctx, File file, DocumentFile df) throws FileCopyException {
689 Log.d(
690 Config.LOGTAG,
691 "copy file (" + file + ") to " + df);
692 try (final InputStream is = new FileInputStream(file);
693 final OutputStream os =
694 mXmppConnectionService.getContentResolver().openOutputStream(df.getUri())) {
695 if (is == null) {
696 throw new FileCopyException(R.string.error_file_not_found);
697 }
698 try {
699 ByteStreams.copy(is, os);
700 os.flush();
701 } catch (IOException e) {
702 throw new FileWriterException(file);
703 }
704 } catch (final FileNotFoundException e) {
705 throw new FileCopyException(R.string.error_file_not_found);
706 } catch (final FileWriterException e) {
707 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
708 } catch (final SecurityException | IllegalStateException e) {
709 throw new FileCopyException(R.string.error_security_exception);
710 } catch (final IOException e) {
711 throw new FileCopyException(R.string.error_io_exception);
712 }
713 }
714
715 private void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
716 Log.d(
717 Config.LOGTAG,
718 "copy file (" + uri.toString() + ") to private storage " + file.getAbsolutePath());
719 file.getParentFile().mkdirs();
720 try {
721 file.createNewFile();
722 } catch (IOException e) {
723 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
724 }
725 try (final OutputStream os = new FileOutputStream(file);
726 final InputStream is =
727 mXmppConnectionService.getContentResolver().openInputStream(uri)) {
728 if (is == null) {
729 throw new FileCopyException(R.string.error_file_not_found);
730 }
731 try {
732 ByteStreams.copy(is, os);
733 } catch (IOException e) {
734 throw new FileWriterException(file);
735 }
736 try {
737 os.flush();
738 } catch (IOException e) {
739 throw new FileWriterException(file);
740 }
741 } catch (final FileNotFoundException e) {
742 cleanup(file);
743 throw new FileCopyException(R.string.error_file_not_found);
744 } catch (final FileWriterException e) {
745 cleanup(file);
746 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
747 } catch (final SecurityException | IllegalStateException e) {
748 cleanup(file);
749 throw new FileCopyException(R.string.error_security_exception);
750 } catch (final IOException e) {
751 cleanup(file);
752 throw new FileCopyException(R.string.error_io_exception);
753 }
754 }
755
756 public void copyFileToPrivateStorage(Message message, Uri uri, String type)
757 throws FileCopyException {
758 String mime = MimeUtils.guessMimeTypeFromUriAndMime(mXmppConnectionService, uri, type);
759 Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime=" + mime + ")");
760 String extension = MimeUtils.guessExtensionFromMimeType(mime);
761 if (extension == null) {
762 Log.d(Config.LOGTAG, "extension from mime type was null");
763 extension = getExtensionFromUri(uri);
764 }
765 if ("ogg".equals(extension) && type != null && type.startsWith("audio/")) {
766 extension = "oga";
767 }
768
769 try {
770 setupRelativeFilePath(message, uri, extension);
771 copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
772 final String name = getDisplayNameFromUri(uri);
773 if (name != null) {
774 message.getFileParams().setName(name);
775 }
776 } catch (final XmppConnectionService.BlockedMediaException e) {
777 message.setRelativeFilePath(null);
778 message.setDeleted(true);
779 }
780 }
781
782 private String getDisplayNameFromUri(final Uri uri) {
783 final String[] projection = {OpenableColumns.DISPLAY_NAME};
784 String filename = null;
785 try (final Cursor cursor =
786 mXmppConnectionService
787 .getContentResolver()
788 .query(uri, projection, null, null, null)) {
789 if (cursor != null && cursor.moveToFirst()) {
790 filename = cursor.getString(0);
791 }
792 } catch (final Exception e) {
793 filename = null;
794 }
795 return filename;
796 }
797
798 private String getExtensionFromUri(final Uri uri) {
799 final String[] projection = {MediaStore.MediaColumns.DATA};
800 String filename = null;
801 try (final Cursor cursor =
802 mXmppConnectionService
803 .getContentResolver()
804 .query(uri, projection, null, null, null)) {
805 if (cursor != null && cursor.moveToFirst()) {
806 filename = cursor.getString(0);
807 }
808 } catch (final Exception e) {
809 filename = null;
810 }
811 if (filename == null) {
812 final List<String> segments = uri.getPathSegments();
813 if (segments.size() > 0) {
814 filename = segments.get(segments.size() - 1);
815 }
816 }
817 final int pos = filename == null ? -1 : filename.lastIndexOf('.');
818 return pos > 0 ? filename.substring(pos + 1) : null;
819 }
820
821 private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
822 throws FileCopyException, ImageCompressionException {
823 final File parent = file.getParentFile();
824 if (parent != null && parent.mkdirs()) {
825 Log.d(Config.LOGTAG, "created parent directory");
826 }
827 InputStream is = null;
828 OutputStream os = null;
829 try {
830 if (!file.exists() && !file.createNewFile()) {
831 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
832 }
833 is = mXmppConnectionService.getContentResolver().openInputStream(image);
834 if (is == null) {
835 throw new FileCopyException(R.string.error_not_an_image_file);
836 }
837 final Bitmap originalBitmap;
838 final BitmapFactory.Options options = new BitmapFactory.Options();
839 final int inSampleSize = (int) Math.pow(2, sampleSize);
840 Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
841 options.inSampleSize = inSampleSize;
842 originalBitmap = BitmapFactory.decodeStream(is, null, options);
843 is.close();
844 if (originalBitmap == null) {
845 throw new ImageCompressionException("Source file was not an image");
846 }
847 if (!"image/jpeg".equals(options.outMimeType) && hasAlpha(originalBitmap)) {
848 originalBitmap.recycle();
849 throw new ImageCompressionException("Source file had alpha channel");
850 }
851 Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
852 final int rotation = getRotation(image);
853 scaledBitmap = rotate(scaledBitmap, rotation);
854 boolean targetSizeReached = false;
855 int quality = Config.IMAGE_QUALITY;
856 final int imageMaxSize =
857 mXmppConnectionService
858 .getResources()
859 .getInteger(R.integer.auto_accept_filesize);
860 while (!targetSizeReached) {
861 os = new FileOutputStream(file);
862 Log.d(Config.LOGTAG, "compressing image with quality " + quality);
863 boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
864 if (!success) {
865 throw new FileCopyException(R.string.error_compressing_image);
866 }
867 os.flush();
868 final long fileSize = file.length();
869 Log.d(Config.LOGTAG, "achieved file size of " + fileSize);
870 targetSizeReached = fileSize <= imageMaxSize || quality <= 50;
871 quality -= 5;
872 }
873 scaledBitmap.recycle();
874 } catch (final FileNotFoundException e) {
875 cleanup(file);
876 throw new FileCopyException(R.string.error_file_not_found);
877 } catch (final IOException e) {
878 cleanup(file);
879 throw new FileCopyException(R.string.error_io_exception);
880 } catch (SecurityException e) {
881 cleanup(file);
882 throw new FileCopyException(R.string.error_security_exception_during_image_copy);
883 } catch (final OutOfMemoryError e) {
884 ++sampleSize;
885 if (sampleSize <= 3) {
886 copyImageToPrivateStorage(file, image, sampleSize);
887 } else {
888 throw new FileCopyException(R.string.error_out_of_memory);
889 }
890 } finally {
891 close(os);
892 close(is);
893 }
894 }
895
896 private static void cleanup(final File file) {
897 try {
898 file.delete();
899 } catch (Exception e) {
900
901 }
902 }
903
904 public void copyImageToPrivateStorage(File file, Uri image)
905 throws FileCopyException, ImageCompressionException {
906 Log.d(
907 Config.LOGTAG,
908 "copy image ("
909 + image.toString()
910 + ") to private storage "
911 + file.getAbsolutePath());
912 copyImageToPrivateStorage(file, image, 0);
913 }
914
915 public void copyImageToPrivateStorage(Message message, Uri image)
916 throws FileCopyException, ImageCompressionException {
917 final String filename;
918 switch (Config.IMAGE_FORMAT) {
919 case JPEG:
920 filename = String.format("%s.%s", message.getUuid(), "jpg");
921 break;
922 case PNG:
923 filename = String.format("%s.%s", message.getUuid(), "png");
924 break;
925 case WEBP:
926 filename = String.format("%s.%s", message.getUuid(), "webp");
927 break;
928 default:
929 throw new IllegalStateException("Unknown image format");
930 }
931 setupRelativeFilePath(message, filename);
932 final File tmp = getFile(message);
933 copyImageToPrivateStorage(tmp, image);
934 final String extension = MimeUtils.extractRelevantExtension(filename);
935 try {
936 setupRelativeFilePath(message, new FileInputStream(tmp), extension);
937 } catch (final FileNotFoundException e) {
938 throw new FileCopyException(R.string.error_file_not_found);
939 } catch (final IOException e) {
940 throw new FileCopyException(R.string.error_io_exception);
941 } catch (final XmppConnectionService.BlockedMediaException e) {
942 tmp.delete();
943 message.setRelativeFilePath(null);
944 message.setDeleted(true);
945 return;
946 }
947 tmp.renameTo(getFile(message));
948 updateFileParams(message, null, false);
949 }
950
951 public void setupRelativeFilePath(final Message message, final Uri uri, final String extension) throws FileCopyException, XmppConnectionService.BlockedMediaException {
952 try {
953 setupRelativeFilePath(message, mXmppConnectionService.getContentResolver().openInputStream(uri), extension);
954 } catch (final FileNotFoundException e) {
955 throw new FileCopyException(R.string.error_file_not_found);
956 } catch (final IOException e) {
957 throw new FileCopyException(R.string.error_io_exception);
958 }
959 }
960
961 public Cid[] calculateCids(final Uri uri) throws IOException {
962 return calculateCids(mXmppConnectionService.getContentResolver().openInputStream(uri));
963 }
964
965 public Cid[] calculateCids(final InputStream is) throws IOException {
966 try {
967 return CryptoHelper.cid(is, new String[]{"SHA-256", "SHA-1", "SHA-512"});
968 } catch (final NoSuchAlgorithmException e) {
969 throw new AssertionError(e);
970 }
971 }
972
973 public void setupRelativeFilePath(final Message message, final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
974 message.setRelativeFilePath(getStorageLocation(is, extension).getAbsolutePath());
975 }
976
977 public void setupRelativeFilePath(final Message message, final String filename) {
978 final String extension = MimeUtils.extractRelevantExtension(filename);
979 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
980 setupRelativeFilePath(message, filename, mime);
981 }
982
983 public File getStorageLocation(final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
984 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
985 Cid[] cids = calculateCids(is);
986 String base = cids[0].toString();
987
988 File file = null;
989 while (file == null || (file.exists() && !file.canRead())) {
990 file = getStorageLocation(String.format("%s.%s", base, extension), mime);
991 base += "_";
992 }
993 for (int i = 0; i < cids.length; i++) {
994 mXmppConnectionService.saveCid(cids[i], file);
995 }
996 return file;
997 }
998
999 public File getStorageLocation(final String filename, final String mime) {
1000 final File parentDirectory;
1001 if (Strings.isNullOrEmpty(mime)) {
1002 parentDirectory =
1003 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
1004 } else if (mime.startsWith("image/")) {
1005 parentDirectory =
1006 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
1007 } else if (mime.startsWith("video/")) {
1008 parentDirectory =
1009 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
1010 } else if (MediaAdapter.DOCUMENT_MIMES.contains(mime)) {
1011 parentDirectory =
1012 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
1013 } else {
1014 parentDirectory =
1015 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
1016 }
1017 final File appDirectory =
1018 new File(parentDirectory, mXmppConnectionService.getString(R.string.app_name));
1019 return new File(appDirectory, filename);
1020 }
1021
1022 public static boolean inConversationsDirectory(final Context context, String path) {
1023 final File fileDirectory = new File(path).getParentFile();
1024 for (final String type : STORAGE_TYPES) {
1025 final File typeDirectory =
1026 new File(
1027 Environment.getExternalStoragePublicDirectory(type),
1028 context.getString(R.string.app_name));
1029 if (typeDirectory.equals(fileDirectory)) {
1030 return true;
1031 }
1032 }
1033 return false;
1034 }
1035
1036 public void setupRelativeFilePath(
1037 final Message message, final String filename, final String mime) {
1038 final File file = getStorageLocation(filename, mime);
1039 message.setRelativeFilePath(file.getAbsolutePath());
1040 }
1041
1042 public boolean unusualBounds(final Uri image) {
1043 try {
1044 final BitmapFactory.Options options = new BitmapFactory.Options();
1045 options.inJustDecodeBounds = true;
1046 final InputStream inputStream =
1047 mXmppConnectionService.getContentResolver().openInputStream(image);
1048 BitmapFactory.decodeStream(inputStream, null, options);
1049 close(inputStream);
1050 float ratio = (float) options.outHeight / options.outWidth;
1051 return ratio > (21.0f / 9.0f) || ratio < (9.0f / 21.0f);
1052 } catch (final Exception e) {
1053 Log.w(Config.LOGTAG, "unable to detect image bounds", e);
1054 return false;
1055 }
1056 }
1057
1058 private int getRotation(final File file) {
1059 try (final InputStream inputStream = new FileInputStream(file)) {
1060 return getRotation(inputStream);
1061 } catch (Exception e) {
1062 return 0;
1063 }
1064 }
1065
1066 private int getRotation(final Uri image) {
1067 try (final InputStream is =
1068 mXmppConnectionService.getContentResolver().openInputStream(image)) {
1069 return is == null ? 0 : getRotation(is);
1070 } catch (final Exception e) {
1071 return 0;
1072 }
1073 }
1074
1075 private static int getRotation(final InputStream inputStream) throws IOException {
1076 final ExifInterface exif = new ExifInterface(inputStream);
1077 final int orientation =
1078 exif.getAttributeInt(
1079 ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
1080 switch (orientation) {
1081 case ExifInterface.ORIENTATION_ROTATE_180:
1082 return 180;
1083 case ExifInterface.ORIENTATION_ROTATE_90:
1084 return 90;
1085 case ExifInterface.ORIENTATION_ROTATE_270:
1086 return 270;
1087 default:
1088 return 0;
1089 }
1090 }
1091
1092 public BitmapDrawable getFallbackThumbnail(final Message message, int size, boolean cacheOnly) {
1093 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1094 if (thumbs != null && !thumbs.isEmpty()) {
1095 for (Element thumb : thumbs) {
1096 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1097 if (uri.getScheme().equals("data")) {
1098 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1099
1100 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1101 BitmapDrawable cached = (BitmapDrawable) cache.get(parts[1]);
1102 if (cached != null || cacheOnly) return cached;
1103
1104 byte[] data;
1105 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1106 String[] parts2 = parts[0].split(";", 2);
1107 parts[0] = parts2[0];
1108 data = Base64.decode(parts[1], 0);
1109 } else {
1110 try {
1111 data = parts[1].getBytes("UTF-8");
1112 } catch (final IOException e) {
1113 data = new byte[0];
1114 }
1115 }
1116
1117 if (parts[0].equals("image/blurhash")) {
1118 int width = message.getFileParams().width;
1119 if (width < 1 && thumb.getAttribute("width") != null) width = Integer.parseInt(thumb.getAttribute("width"));
1120 if (width < 1) width = 1920;
1121
1122 int height = message.getFileParams().height;
1123 if (height < 1 && thumb.getAttribute("height") != null) height = Integer.parseInt(thumb.getAttribute("height"));
1124 if (height < 1) height = 1080;
1125 Rect r = rectForSize(width, height, size);
1126
1127 Bitmap blurhash = BlurHashDecoder.INSTANCE.decode(parts[1], r.width(), r.height(), 1.0f, false);
1128 if (blurhash != null) {
1129 cached = new BitmapDrawable(blurhash);
1130 if (parts[1] != null && cached != null) cache.put(parts[1], cached);
1131 return cached;
1132 }
1133 } else if (parts[0].equals("image/thumbhash")) {
1134 ThumbHash.Image image;
1135 try {
1136 image = ThumbHash.thumbHashToRGBA(data);
1137 } catch (final Exception e) {
1138 continue;
1139 }
1140 int[] pixels = new int[image.width * image.height];
1141 for (int i = 0; i < pixels.length; i++) {
1142 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);
1143 }
1144 cached = new BitmapDrawable(Bitmap.createBitmap(pixels, image.width, image.height, Bitmap.Config.ARGB_8888));
1145 if (parts[1] != null && cached != null) cache.put(parts[1], cached);
1146 return cached;
1147 }
1148 }
1149 }
1150 }
1151
1152 return null;
1153 }
1154
1155 public Drawable getThumbnail(Message message, Resources res, int size, boolean cacheOnly) throws IOException {
1156 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1157 DownloadableFile file = getFile(message);
1158 Drawable thumbnail = cache.get(file.getAbsolutePath());
1159 if (thumbnail != null) return thumbnail;
1160
1161 if ((thumbnail == null) && (!cacheOnly)) {
1162 synchronized (THUMBNAIL_LOCK) {
1163 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1164 if (thumbs != null && !thumbs.isEmpty()) {
1165 for (Element thumb : thumbs) {
1166 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1167 if (uri.getScheme().equals("data")) {
1168 if (android.os.Build.VERSION.SDK_INT < 28) continue;
1169 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1170
1171 byte[] data;
1172 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1173 String[] parts2 = parts[0].split(";", 2);
1174 parts[0] = parts2[0];
1175 data = Base64.decode(parts[1], 0);
1176 } else {
1177 data = parts[1].getBytes("UTF-8");
1178 }
1179
1180 if (parts[0].equals("image/blurhash")) continue; // blurhash only for fallback
1181 if (parts[0].equals("image/thumbhash")) continue; // thumbhash only for fallback
1182
1183 ImageDecoder.Source source = ImageDecoder.createSource(ByteBuffer.wrap(data));
1184 thumbnail = ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1185 int w = info.getSize().getWidth();
1186 int h = info.getSize().getHeight();
1187 Rect r = rectForSize(w, h, size);
1188 decoder.setTargetSize(r.width(), r.height());
1189 });
1190
1191 if (thumbnail != null && file.getAbsolutePath() != null) {
1192 cache.put(file.getAbsolutePath(), thumbnail);
1193 return thumbnail;
1194 }
1195 } else if (uri.getScheme().equals("cid")) {
1196 Cid cid = BobTransfer.cid(uri);
1197 if (cid == null) continue;
1198 DownloadableFile f = mXmppConnectionService.getFileForCid(cid);
1199 if (f != null && f.canRead()) {
1200 return getThumbnail(f, res, size, cacheOnly);
1201 }
1202 }
1203 }
1204 }
1205 }
1206 }
1207
1208 return getThumbnail(file, res, size, cacheOnly);
1209 }
1210
1211 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly) throws IOException {
1212 return getThumbnail(file, res, size, cacheOnly, file.getAbsolutePath());
1213 }
1214
1215 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly, String cacheKey) throws IOException {
1216 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1217 Drawable thumbnail = cache.get(cacheKey);
1218 if ((thumbnail == null) && (!cacheOnly) && file.exists()) {
1219 synchronized (THUMBNAIL_LOCK) {
1220 thumbnail = cache.get(cacheKey);
1221 if (thumbnail != null) {
1222 return thumbnail;
1223 }
1224 final String mime = file.getMimeType();
1225 if ("image/svg+xml".equals(mime)) {
1226 thumbnail = getSVG(file, size);
1227 } else if ("application/pdf".equals(mime)) {
1228 thumbnail = new BitmapDrawable(res, getPdfDocumentPreview(file, size));
1229 } else if (mime.startsWith("video/")) {
1230 thumbnail = new BitmapDrawable(res, getVideoPreview(file, size));
1231 } else {
1232 thumbnail = getImagePreview(file, res, size, mime);
1233 if (thumbnail == null) {
1234 throw new FileNotFoundException();
1235 }
1236 }
1237 if (cacheKey != null && thumbnail != null) cache.put(cacheKey, thumbnail);
1238 }
1239 }
1240 return thumbnail;
1241 }
1242
1243 public Bitmap getThumbnailBitmap(Message message, Resources res, int size) throws IOException {
1244 final Drawable drawable = getThumbnail(message, res, size, false);
1245 if (drawable == null) return null;
1246 return drawDrawable(drawable);
1247 }
1248
1249 public Bitmap getThumbnailBitmap(DownloadableFile file, Resources res, int size, String cacheKey) throws IOException {
1250 final Drawable drawable = getThumbnail(file, res, size, false, cacheKey);
1251 if (drawable == null) return null;
1252 return drawDrawable(drawable);
1253 }
1254
1255 public static Rect rectForSize(int w, int h, int size) {
1256 int scalledW;
1257 int scalledH;
1258 if (w <= h) {
1259 scalledW = Math.max((int) (w / ((double) h / size)), 1);
1260 scalledH = size;
1261 } else {
1262 scalledW = size;
1263 scalledH = Math.max((int) (h / ((double) w / size)), 1);
1264 }
1265
1266 if (scalledW > w || scalledH > h) return new Rect(0, 0, w, h);
1267
1268 return new Rect(0, 0, scalledW, scalledH);
1269 }
1270
1271 private Drawable getImagePreview(File file, Resources res, int size, final String mime) throws IOException {
1272 if (android.os.Build.VERSION.SDK_INT >= 28) {
1273 ImageDecoder.Source source = ImageDecoder.createSource(file);
1274 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1275 int w = info.getSize().getWidth();
1276 int h = info.getSize().getHeight();
1277 Rect r = rectForSize(w, h, size);
1278 decoder.setTargetSize(r.width(), r.height());
1279 });
1280 } else {
1281 BitmapFactory.Options options = new BitmapFactory.Options();
1282 options.inSampleSize = calcSampleSize(file, size);
1283 Bitmap bitmap = null;
1284 try {
1285 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1286 } catch (OutOfMemoryError e) {
1287 options.inSampleSize *= 2;
1288 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1289 }
1290 if (bitmap == null) return null;
1291
1292 bitmap = resize(bitmap, size);
1293 bitmap = rotate(bitmap, getRotation(file));
1294 if (mime.equals("image/gif")) {
1295 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
1296 drawOverlay(withGifOverlay, paintOverlayBlack(withGifOverlay) ? R.drawable.play_gif_black : R.drawable.play_gif_white, 1.0f);
1297 bitmap.recycle();
1298 bitmap = withGifOverlay;
1299 }
1300 return new BitmapDrawable(res, bitmap);
1301 }
1302 }
1303
1304 public static Bitmap drawDrawable(Drawable drawable) {
1305 if (drawable == null) return null;
1306
1307 Bitmap bitmap = null;
1308
1309 if (drawable instanceof BitmapDrawable) {
1310 bitmap = ((BitmapDrawable) drawable).getBitmap();
1311 if (bitmap != null) return bitmap;
1312 }
1313
1314 bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
1315 Canvas canvas = new Canvas(bitmap);
1316 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
1317 drawable.draw(canvas);
1318 return bitmap;
1319 }
1320
1321 private void drawOverlay(Bitmap bitmap, int resource, float factor) {
1322 Bitmap overlay =
1323 BitmapFactory.decodeResource(mXmppConnectionService.getResources(), resource);
1324 Canvas canvas = new Canvas(bitmap);
1325 float targetSize = Math.min(canvas.getWidth(), canvas.getHeight()) * factor;
1326 Log.d(
1327 Config.LOGTAG,
1328 "target size overlay: "
1329 + targetSize
1330 + " overlay bitmap size was "
1331 + overlay.getHeight());
1332 float left = (canvas.getWidth() - targetSize) / 2.0f;
1333 float top = (canvas.getHeight() - targetSize) / 2.0f;
1334 RectF dst = new RectF(left, top, left + targetSize - 1, top + targetSize - 1);
1335 canvas.drawBitmap(overlay, null, dst, createAntiAliasingPaint());
1336 }
1337
1338 /** https://stackoverflow.com/a/3943023/210897 */
1339 private boolean paintOverlayBlack(final Bitmap bitmap) {
1340 final int h = bitmap.getHeight();
1341 final int w = bitmap.getWidth();
1342 int record = 0;
1343 for (int y = Math.round(h * IGNORE_PADDING); y < h - Math.round(h * IGNORE_PADDING); ++y) {
1344 for (int x = Math.round(w * IGNORE_PADDING);
1345 x < w - Math.round(w * IGNORE_PADDING);
1346 ++x) {
1347 int pixel = bitmap.getPixel(x, y);
1348 if ((Color.red(pixel) * 0.299
1349 + Color.green(pixel) * 0.587
1350 + Color.blue(pixel) * 0.114)
1351 > 186) {
1352 --record;
1353 } else {
1354 ++record;
1355 }
1356 }
1357 }
1358 return record < 0;
1359 }
1360
1361 private boolean paintOverlayBlackPdf(final Bitmap bitmap) {
1362 final int h = bitmap.getHeight();
1363 final int w = bitmap.getWidth();
1364 int white = 0;
1365 for (int y = 0; y < h; ++y) {
1366 for (int x = 0; x < w; ++x) {
1367 int pixel = bitmap.getPixel(x, y);
1368 if ((Color.red(pixel) * 0.299
1369 + Color.green(pixel) * 0.587
1370 + Color.blue(pixel) * 0.114)
1371 > 186) {
1372 white++;
1373 }
1374 }
1375 }
1376 return white > (h * w * 0.4f);
1377 }
1378
1379 private Bitmap cropCenterSquareVideo(Uri uri, int size) {
1380 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1381 Bitmap frame;
1382 try {
1383 metadataRetriever.setDataSource(mXmppConnectionService, uri);
1384 frame = metadataRetriever.getFrameAtTime(0);
1385 metadataRetriever.release();
1386 return cropCenterSquare(frame, size);
1387 } catch (Exception e) {
1388 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1389 frame.eraseColor(0xff000000);
1390 return frame;
1391 }
1392 }
1393
1394 private Bitmap getVideoPreview(final File file, final int size) {
1395 final MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1396 Bitmap frame;
1397 try {
1398 metadataRetriever.setDataSource(file.getAbsolutePath());
1399 frame = metadataRetriever.getFrameAtTime(0);
1400 metadataRetriever.release();
1401 frame = resize(frame, size);
1402 } catch (IOException | RuntimeException e) {
1403 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1404 frame.eraseColor(0xff000000);
1405 }
1406 drawOverlay(
1407 frame,
1408 paintOverlayBlack(frame)
1409 ? R.drawable.play_video_black
1410 : R.drawable.play_video_white,
1411 0.75f);
1412 return frame;
1413 }
1414
1415 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1416 private Bitmap getPdfDocumentPreview(final File file, final int size) {
1417 try {
1418 final ParcelFileDescriptor fileDescriptor =
1419 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1420 final Bitmap rendered = renderPdfDocument(fileDescriptor, size, true);
1421 drawOverlay(
1422 rendered,
1423 paintOverlayBlackPdf(rendered)
1424 ? R.drawable.open_pdf_black
1425 : R.drawable.open_pdf_white,
1426 0.75f);
1427 return rendered;
1428 } catch (final IOException | SecurityException e) {
1429 Log.d(Config.LOGTAG, "unable to render PDF document preview", e);
1430 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1431 placeholder.eraseColor(0xff000000);
1432 return placeholder;
1433 }
1434 }
1435
1436 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1437 private Bitmap cropCenterSquarePdf(final Uri uri, final int size) {
1438 try {
1439 ParcelFileDescriptor fileDescriptor =
1440 mXmppConnectionService.getContentResolver().openFileDescriptor(uri, "r");
1441 final Bitmap bitmap = renderPdfDocument(fileDescriptor, size, false);
1442 return cropCenterSquare(bitmap, size);
1443 } catch (Exception e) {
1444 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1445 placeholder.eraseColor(0xff000000);
1446 return placeholder;
1447 }
1448 }
1449
1450 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1451 private Bitmap renderPdfDocument(
1452 ParcelFileDescriptor fileDescriptor, int targetSize, boolean fit) throws IOException {
1453 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1454 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1455 final Dimensions dimensions =
1456 scalePdfDimensions(
1457 new Dimensions(page.getHeight(), page.getWidth()), targetSize, fit);
1458 final Bitmap rendered =
1459 Bitmap.createBitmap(dimensions.width, dimensions.height, Bitmap.Config.ARGB_8888);
1460 rendered.eraseColor(0xffffffff);
1461 page.render(rendered, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
1462 page.close();
1463 pdfRenderer.close();
1464 fileDescriptor.close();
1465 return rendered;
1466 }
1467
1468 public Uri getTakePhotoUri() {
1469 final String filename =
1470 String.format("IMG_%s.%s", IMAGE_DATE_FORMAT.format(new Date()), "jpg");
1471 final File directory;
1472 if (Config.ONLY_INTERNAL_STORAGE) {
1473 directory = new File(mXmppConnectionService.getCacheDir(), "Camera");
1474 } else {
1475 directory =
1476 new File(
1477 Environment.getExternalStoragePublicDirectory(
1478 Environment.DIRECTORY_DCIM),
1479 "Camera");
1480 }
1481 final File file = new File(directory, filename);
1482 file.getParentFile().mkdirs();
1483 return getUriForFile(mXmppConnectionService, file);
1484 }
1485
1486 public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
1487
1488 final Pair<Avatar,Boolean> uncompressAvatar = getUncompressedAvatar(image);
1489 if (uncompressAvatar != null && uncompressAvatar.first != null &&
1490 (uncompressAvatar.first.image.length() <= Config.AVATAR_CHAR_LIMIT || uncompressAvatar.second)) {
1491 return uncompressAvatar.first;
1492 }
1493 if (uncompressAvatar != null && uncompressAvatar.first != null) {
1494 Log.d(
1495 Config.LOGTAG,
1496 "uncompressed avatar exceeded char limit by "
1497 + (uncompressAvatar.first.image.length() - Config.AVATAR_CHAR_LIMIT));
1498 }
1499
1500 Bitmap bm = cropCenterSquare(image, size);
1501 if (bm == null) {
1502 return null;
1503 }
1504 if (hasAlpha(bm)) {
1505 Log.d(Config.LOGTAG, "alpha in avatar detected; uploading as PNG");
1506 bm.recycle();
1507 bm = cropCenterSquare(image, 96);
1508 return getPepAvatar(bm, Bitmap.CompressFormat.PNG, 100);
1509 }
1510 return getPepAvatar(bm, format, 100);
1511 }
1512
1513 private Pair<Avatar,Boolean> getUncompressedAvatar(Uri uri) {
1514 try {
1515 if (android.os.Build.VERSION.SDK_INT >= 28) {
1516 ImageDecoder.Source source = ImageDecoder.createSource(mXmppConnectionService.getContentResolver(), uri);
1517 int[] size = new int[] { 0, 0 };
1518 boolean[] animated = new boolean[] { false };
1519 String[] mimeType = new String[] { null };
1520 Drawable drawable = ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1521 mimeType[0] = info.getMimeType();
1522 animated[0] = info.isAnimated();
1523 size[0] = info.getSize().getWidth();
1524 size[1] = info.getSize().getHeight();
1525 });
1526
1527 if (animated[0]) {
1528 Avatar avatar = getPepAvatar(uri, size[0], size[1], mimeType[0]);
1529 if (avatar != null) return new Pair(avatar, true);
1530 }
1531
1532 return new Pair(getPepAvatar(drawDrawable(drawable), Bitmap.CompressFormat.PNG, 100), false);
1533 } else {
1534 Bitmap bitmap =
1535 BitmapFactory.decodeStream(
1536 mXmppConnectionService.getContentResolver().openInputStream(uri));
1537 return new Pair(getPepAvatar(bitmap, Bitmap.CompressFormat.PNG, 100), false);
1538 }
1539 } catch (Exception e) {
1540 try {
1541 final SVG svg = SVG.getFromInputStream(mXmppConnectionService.getContentResolver().openInputStream(uri));
1542 return new Pair(getPepAvatar(uri, (int) svg.getDocumentWidth(), (int) svg.getDocumentHeight(), "image/svg+xml"), true);
1543 } catch (Exception e2) {
1544 return null;
1545 }
1546 }
1547 }
1548
1549 private Avatar getPepAvatar(Uri uri, int width, int height, final String mimeType) throws IOException, NoSuchAlgorithmException {
1550 AssetFileDescriptor fd = mXmppConnectionService.getContentResolver().openAssetFileDescriptor(uri, "r");
1551 if (fd.getLength() > 100000) return null; // Too big to use raw file
1552
1553 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1554 Base64OutputStream mBase64OutputStream =
1555 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1556 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1557 DigestOutputStream mDigestOutputStream =
1558 new DigestOutputStream(mBase64OutputStream, digest);
1559
1560 ByteStreams.copy(fd.createInputStream(), mDigestOutputStream);
1561 mDigestOutputStream.flush();
1562 mDigestOutputStream.close();
1563
1564 final Avatar avatar = new Avatar();
1565 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1566 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1567 avatar.type = mimeType;
1568 avatar.width = width;
1569 avatar.height = height;
1570 return avatar;
1571 }
1572
1573 private Avatar getPepAvatar(Bitmap bitmap, Bitmap.CompressFormat format, int quality) {
1574 try {
1575 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1576 Base64OutputStream mBase64OutputStream =
1577 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1578 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1579 DigestOutputStream mDigestOutputStream =
1580 new DigestOutputStream(mBase64OutputStream, digest);
1581 if (!bitmap.compress(format, quality, mDigestOutputStream)) {
1582 return null;
1583 }
1584 mDigestOutputStream.flush();
1585 mDigestOutputStream.close();
1586 long chars = mByteArrayOutputStream.size();
1587 if (format != Bitmap.CompressFormat.PNG
1588 && quality >= 50
1589 && chars >= Config.AVATAR_CHAR_LIMIT) {
1590 int q = quality - 2;
1591 Log.d(
1592 Config.LOGTAG,
1593 "avatar char length was " + chars + " reducing quality to " + q);
1594 return getPepAvatar(bitmap, format, q);
1595 }
1596 Log.d(Config.LOGTAG, "settled on char length " + chars + " with quality=" + quality);
1597 final Avatar avatar = new Avatar();
1598 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1599 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1600 if (format.equals(Bitmap.CompressFormat.WEBP)) {
1601 avatar.type = "image/webp";
1602 } else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1603 avatar.type = "image/jpeg";
1604 } else if (format.equals(Bitmap.CompressFormat.PNG)) {
1605 avatar.type = "image/png";
1606 }
1607 avatar.width = bitmap.getWidth();
1608 avatar.height = bitmap.getHeight();
1609 return avatar;
1610 } catch (OutOfMemoryError e) {
1611 Log.d(Config.LOGTAG, "unable to convert avatar to base64 due to low memory");
1612 return null;
1613 } catch (Exception e) {
1614 return null;
1615 }
1616 }
1617
1618 public Avatar getStoredPepAvatar(String hash) {
1619 if (hash == null) {
1620 return null;
1621 }
1622 Avatar avatar = new Avatar();
1623 final File file = getAvatarFile(hash);
1624 FileInputStream is = null;
1625 try {
1626 avatar.size = file.length();
1627 BitmapFactory.Options options = new BitmapFactory.Options();
1628 options.inJustDecodeBounds = true;
1629 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1630 is = new FileInputStream(file);
1631 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1632 Base64OutputStream mBase64OutputStream =
1633 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1634 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1635 DigestOutputStream os = new DigestOutputStream(mBase64OutputStream, digest);
1636 byte[] buffer = new byte[4096];
1637 int length;
1638 while ((length = is.read(buffer)) > 0) {
1639 os.write(buffer, 0, length);
1640 }
1641 os.flush();
1642 os.close();
1643 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1644 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1645 avatar.height = options.outHeight;
1646 avatar.width = options.outWidth;
1647 avatar.type = options.outMimeType;
1648 return avatar;
1649 } catch (NoSuchAlgorithmException | IOException e) {
1650 return null;
1651 } finally {
1652 close(is);
1653 }
1654 }
1655
1656 public boolean isAvatarCached(Avatar avatar) {
1657 final File file = getAvatarFile(avatar.getFilename());
1658 return file.exists();
1659 }
1660
1661 public boolean save(final Avatar avatar) {
1662 File file;
1663 if (isAvatarCached(avatar)) {
1664 file = getAvatarFile(avatar.getFilename());
1665 avatar.size = file.length();
1666 } else {
1667 file =
1668 new File(
1669 mXmppConnectionService.getCacheDir().getAbsolutePath()
1670 + "/"
1671 + UUID.randomUUID().toString());
1672 if (file.getParentFile().mkdirs()) {
1673 Log.d(Config.LOGTAG, "created cache directory");
1674 }
1675 OutputStream os = null;
1676 try {
1677 if (!file.createNewFile()) {
1678 Log.d(
1679 Config.LOGTAG,
1680 "unable to create temporary file " + file.getAbsolutePath());
1681 }
1682 os = new FileOutputStream(file);
1683 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1684 digest.reset();
1685 DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
1686 final byte[] bytes = avatar.getImageAsBytes();
1687 mDigestOutputStream.write(bytes);
1688 mDigestOutputStream.flush();
1689 mDigestOutputStream.close();
1690 String sha1sum = CryptoHelper.bytesToHex(digest.digest());
1691 if (sha1sum.equals(avatar.sha1sum)) {
1692 final File outputFile = getAvatarFile(avatar.getFilename());
1693 if (outputFile.getParentFile().mkdirs()) {
1694 Log.d(Config.LOGTAG, "created avatar directory");
1695 }
1696 final File avatarFile = getAvatarFile(avatar.getFilename());
1697 if (!file.renameTo(avatarFile)) {
1698 Log.d(
1699 Config.LOGTAG,
1700 "unable to rename " + file.getAbsolutePath() + " to " + outputFile);
1701 return false;
1702 }
1703 } else {
1704 Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
1705 if (!file.delete()) {
1706 Log.d(Config.LOGTAG, "unable to delete temporary file");
1707 }
1708 return false;
1709 }
1710 avatar.size = bytes.length;
1711 } catch (IllegalArgumentException | IOException | NoSuchAlgorithmException e) {
1712 return false;
1713 } finally {
1714 close(os);
1715 }
1716 }
1717 return true;
1718 }
1719
1720 public void deleteHistoricAvatarPath() {
1721 delete(getHistoricAvatarPath());
1722 }
1723
1724 private void delete(final File file) {
1725 if (file.isDirectory()) {
1726 final File[] files = file.listFiles();
1727 if (files != null) {
1728 for (final File f : files) {
1729 delete(f);
1730 }
1731 }
1732 }
1733 if (file.delete()) {
1734 Log.d(Config.LOGTAG, "deleted " + file.getAbsolutePath());
1735 }
1736 }
1737
1738 private File getHistoricAvatarPath() {
1739 return new File(mXmppConnectionService.getFilesDir(), "/avatars/");
1740 }
1741
1742 public File getAvatarFile(String avatar) {
1743 return new File(mXmppConnectionService.getCacheDir(), "/avatars/" + avatar);
1744 }
1745
1746 public Uri getAvatarUri(String avatar) {
1747 return Uri.fromFile(getAvatarFile(avatar));
1748 }
1749
1750 public Drawable cropCenterSquareDrawable(Uri image, int size) {
1751 if (android.os.Build.VERSION.SDK_INT >= 28) {
1752 try {
1753 ImageDecoder.Source source = ImageDecoder.createSource(mXmppConnectionService.getContentResolver(), image);
1754 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1755 int w = info.getSize().getWidth();
1756 int h = info.getSize().getHeight();
1757 Rect r = rectForSize(w, h, size);
1758 decoder.setTargetSize(r.width(), r.height());
1759
1760 int newSize = Math.min(r.width(), r.height());
1761 int left = (r.width() - newSize) / 2;
1762 int top = (r.height() - newSize) / 2;
1763 decoder.setCrop(new Rect(left, top, left + newSize, top + newSize));
1764 });
1765 } catch (final IOException e) {
1766 return getSVGSquare(image, size);
1767 }
1768 } else {
1769 Bitmap bitmap = cropCenterSquare(image, size);
1770 return bitmap == null ? null : new BitmapDrawable(bitmap);
1771 }
1772 }
1773
1774 public Bitmap cropCenterSquare(Uri image, int size) {
1775 if (image == null) {
1776 return null;
1777 }
1778 InputStream is = null;
1779 try {
1780 BitmapFactory.Options options = new BitmapFactory.Options();
1781 options.inSampleSize = calcSampleSize(image, size);
1782 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1783 if (is == null) {
1784 return null;
1785 }
1786 Bitmap input = BitmapFactory.decodeStream(is, null, options);
1787 if (input == null) {
1788 return null;
1789 } else {
1790 input = rotate(input, getRotation(image));
1791 return cropCenterSquare(input, size);
1792 }
1793 } catch (FileNotFoundException | SecurityException e) {
1794 Log.d(Config.LOGTAG, "unable to open file " + image.toString(), e);
1795 return null;
1796 } finally {
1797 close(is);
1798 }
1799 }
1800
1801 public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
1802 if (image == null) {
1803 return null;
1804 }
1805 InputStream is = null;
1806 try {
1807 BitmapFactory.Options options = new BitmapFactory.Options();
1808 options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
1809 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1810 if (is == null) {
1811 return null;
1812 }
1813 Bitmap source = BitmapFactory.decodeStream(is, null, options);
1814 if (source == null) {
1815 return null;
1816 }
1817 int sourceWidth = source.getWidth();
1818 int sourceHeight = source.getHeight();
1819 float xScale = (float) newWidth / sourceWidth;
1820 float yScale = (float) newHeight / sourceHeight;
1821 float scale = Math.max(xScale, yScale);
1822 float scaledWidth = scale * sourceWidth;
1823 float scaledHeight = scale * sourceHeight;
1824 float left = (newWidth - scaledWidth) / 2;
1825 float top = (newHeight - scaledHeight) / 2;
1826
1827 RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
1828 Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
1829 Canvas canvas = new Canvas(dest);
1830 canvas.drawBitmap(source, null, targetRect, createAntiAliasingPaint());
1831 if (source.isRecycled()) {
1832 source.recycle();
1833 }
1834 return dest;
1835 } catch (SecurityException e) {
1836 return null; // android 6.0 with revoked permissions for example
1837 } catch (FileNotFoundException e) {
1838 return null;
1839 } finally {
1840 close(is);
1841 }
1842 }
1843
1844 public Bitmap cropCenterSquare(Bitmap input, int size) {
1845 int w = input.getWidth();
1846 int h = input.getHeight();
1847
1848 float scale = Math.max((float) size / h, (float) size / w);
1849
1850 float outWidth = scale * w;
1851 float outHeight = scale * h;
1852 float left = (size - outWidth) / 2;
1853 float top = (size - outHeight) / 2;
1854 RectF target = new RectF(left, top, left + outWidth, top + outHeight);
1855
1856 Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1857 Canvas canvas = new Canvas(output);
1858 canvas.drawBitmap(input, null, target, createAntiAliasingPaint());
1859 if (!input.isRecycled()) {
1860 input.recycle();
1861 }
1862 return output;
1863 }
1864
1865 private int calcSampleSize(Uri image, int size)
1866 throws FileNotFoundException, SecurityException {
1867 final BitmapFactory.Options options = new BitmapFactory.Options();
1868 options.inJustDecodeBounds = true;
1869 final InputStream inputStream =
1870 mXmppConnectionService.getContentResolver().openInputStream(image);
1871 BitmapFactory.decodeStream(inputStream, null, options);
1872 close(inputStream);
1873 return calcSampleSize(options, size);
1874 }
1875
1876 public void updateFileParams(Message message) {
1877 updateFileParams(message, null);
1878 }
1879
1880 public void updateFileParams(final Message message, final String url) {
1881 updateFileParams(message, url, true);
1882 }
1883
1884 public void updateFileParams(final Message message, String url, boolean updateCids) {
1885 final boolean encrypted =
1886 message.getEncryption() == Message.ENCRYPTION_PGP
1887 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED;
1888 final DownloadableFile file = getFile(message);
1889 final String mime = file.getMimeType();
1890 final boolean privateMessage = message.isPrivateMessage();
1891 final boolean image =
1892 message.getType() == Message.TYPE_IMAGE
1893 || (mime != null && mime.startsWith("image/"));
1894 Message.FileParams fileParams = message.getFileParams();
1895 if (fileParams == null) fileParams = new Message.FileParams();
1896 Cid[] cids = new Cid[0];
1897 try {
1898 cids = calculateCids(new FileInputStream(file));
1899 fileParams.setCids(List.of(cids));
1900 } catch (final IOException | NoSuchAlgorithmException e) { }
1901 if (url == null) {
1902 for (Cid cid : cids) {
1903 url = mXmppConnectionService.getUrlForCid(cid);
1904 if (url != null) {
1905 fileParams.url = url;
1906 break;
1907 }
1908 }
1909 } else {
1910 fileParams.url = url;
1911 }
1912 if (fileParams.getName() == null) fileParams.setName(file.getName());
1913 fileParams.setMediaType(mime);
1914 if (encrypted && !file.exists()) {
1915 Log.d(Config.LOGTAG, "skipping updateFileParams because file is encrypted");
1916 final DownloadableFile encryptedFile = getFile(message, false);
1917 fileParams.size = encryptedFile.getSize();
1918 } else {
1919 Log.d(Config.LOGTAG, "running updateFileParams");
1920 final boolean ambiguous = MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime);
1921 final boolean video = mime != null && mime.startsWith("video/");
1922 final boolean audio = mime != null && mime.startsWith("audio/");
1923 final boolean pdf = "application/pdf".equals(mime);
1924 fileParams.size = file.getSize();
1925 if (ambiguous) {
1926 try {
1927 final Dimensions dimensions = getVideoDimensions(file);
1928 if (dimensions.valid()) {
1929 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is video");
1930 fileParams.width = dimensions.width;
1931 fileParams.height = dimensions.height;
1932 } else {
1933 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1934 fileParams.runtime = getMediaRuntime(file);
1935 }
1936 } catch (final IOException | NotAVideoFile e) {
1937 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1938 fileParams.runtime = getMediaRuntime(file);
1939 }
1940 } else if (image || video || pdf) {
1941 try {
1942 final Dimensions dimensions;
1943 if (video) {
1944 dimensions = getVideoDimensions(file);
1945 } else if (pdf) {
1946 dimensions = getPdfDocumentDimensions(file);
1947 } else if ("image/svg+xml".equals(mime)) {
1948 SVG svg = SVG.getFromInputStream(new FileInputStream(file));
1949 dimensions = new Dimensions((int) svg.getDocumentHeight(), (int) svg.getDocumentWidth());
1950 } else {
1951 dimensions = getImageDimensions(file);
1952 }
1953 if (dimensions.valid()) {
1954 fileParams.width = dimensions.width;
1955 fileParams.height = dimensions.height;
1956 }
1957 } catch (final IOException | SVGParseException | NotAVideoFile notAVideoFile) {
1958 Log.d(
1959 Config.LOGTAG,
1960 "file with mime type " + file.getMimeType() + " was not a video file");
1961 // fall threw
1962 }
1963 } else if (audio) {
1964 fileParams.runtime = getMediaRuntime(file);
1965 }
1966 try {
1967 Bitmap thumb = getThumbnailBitmap(file, mXmppConnectionService.getResources(), 100, file.getAbsolutePath() + " x 100");
1968 if (thumb != null) {
1969 int[] pixels = new int[thumb.getWidth() * thumb.getHeight()];
1970 byte[] rgba = new byte[pixels.length * 4];
1971 try {
1972 thumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1973 } catch (final IllegalStateException e) {
1974 Bitmap softThumb = thumb.copy(Bitmap.Config.ARGB_8888, false);
1975 softThumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1976 softThumb.recycle();
1977 }
1978 for (int i = 0; i < pixels.length; i++) {
1979 rgba[i*4] = (byte)((pixels[i] >> 16) & 0xff);
1980 rgba[(i*4)+1] = (byte)((pixels[i] >> 8) & 0xff);
1981 rgba[(i*4)+2] = (byte)(pixels[i] & 0xff);
1982 rgba[(i*4)+3] = (byte)((pixels[i] >> 24) & 0xff);
1983 }
1984 fileParams.addThumbnail(thumb.getWidth(), thumb.getHeight(), "image/thumbhash", "data:image/thumbhash;base64," + Base64.encodeToString(ThumbHash.rgbaToThumbHash(thumb.getWidth(), thumb.getHeight(), rgba), Base64.NO_WRAP));
1985 }
1986 } catch (final IOException e) { }
1987 }
1988 message.setFileParams(fileParams);
1989 message.setDeleted(false);
1990 message.setType(
1991 privateMessage
1992 ? Message.TYPE_PRIVATE_FILE
1993 : (image ? Message.TYPE_IMAGE : Message.TYPE_FILE));
1994
1995 if (updateCids) {
1996 try {
1997 for (int i = 0; i < cids.length; i++) {
1998 mXmppConnectionService.saveCid(cids[i], file);
1999 }
2000 } catch (XmppConnectionService.BlockedMediaException e) { }
2001 }
2002 }
2003
2004 private int getMediaRuntime(final File file) {
2005 try {
2006 final MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
2007 mediaMetadataRetriever.setDataSource(file.toString());
2008 final String value =
2009 mediaMetadataRetriever.extractMetadata(
2010 MediaMetadataRetriever.METADATA_KEY_DURATION);
2011 if (Strings.isNullOrEmpty(value)) {
2012 return 0;
2013 }
2014 return Integer.parseInt(value);
2015 } catch (final Exception e) {
2016 return 0;
2017 }
2018 }
2019
2020 private Dimensions getImageDimensions(File file) {
2021 final BitmapFactory.Options options = new BitmapFactory.Options();
2022 options.inJustDecodeBounds = true;
2023 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
2024 final int rotation = getRotation(file);
2025 final boolean rotated = rotation == 90 || rotation == 270;
2026 final int imageHeight = rotated ? options.outWidth : options.outHeight;
2027 final int imageWidth = rotated ? options.outHeight : options.outWidth;
2028 return new Dimensions(imageHeight, imageWidth);
2029 }
2030
2031 private Dimensions getVideoDimensions(final File file) throws NotAVideoFile, IOException {
2032 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
2033 try {
2034 metadataRetriever.setDataSource(file.getAbsolutePath());
2035 } catch (RuntimeException e) {
2036 throw new NotAVideoFile(e);
2037 }
2038 return getVideoDimensions(metadataRetriever);
2039 }
2040
2041 private Dimensions getPdfDocumentDimensions(final File file) {
2042 final ParcelFileDescriptor fileDescriptor;
2043 try {
2044 fileDescriptor = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
2045 if (fileDescriptor == null) {
2046 return new Dimensions(0, 0);
2047 }
2048 } catch (final FileNotFoundException e) {
2049 return new Dimensions(0, 0);
2050 }
2051 try {
2052 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
2053 final PdfRenderer.Page page = pdfRenderer.openPage(0);
2054 final int height = page.getHeight();
2055 final int width = page.getWidth();
2056 page.close();
2057 pdfRenderer.close();
2058 return scalePdfDimensions(new Dimensions(height, width));
2059 } catch (final IOException | SecurityException e) {
2060 Log.d(Config.LOGTAG, "unable to get dimensions for pdf document", e);
2061 return new Dimensions(0, 0);
2062 }
2063 }
2064
2065 private Dimensions scalePdfDimensions(Dimensions in) {
2066 final DisplayMetrics displayMetrics =
2067 mXmppConnectionService.getResources().getDisplayMetrics();
2068 final int target = (int) (displayMetrics.density * 288);
2069 return scalePdfDimensions(in, target, true);
2070 }
2071
2072 private static Dimensions scalePdfDimensions(
2073 final Dimensions in, final int target, final boolean fit) {
2074 final int w, h;
2075 if (fit == (in.width <= in.height)) {
2076 w = Math.max((int) (in.width / ((double) in.height / target)), 1);
2077 h = target;
2078 } else {
2079 w = target;
2080 h = Math.max((int) (in.height / ((double) in.width / target)), 1);
2081 }
2082 return new Dimensions(h, w);
2083 }
2084
2085 public Drawable getAvatar(String avatar, int size) {
2086 if (avatar == null) {
2087 return null;
2088 }
2089
2090 if (android.os.Build.VERSION.SDK_INT >= 28) {
2091 try {
2092 ImageDecoder.Source source = ImageDecoder.createSource(getAvatarFile(avatar));
2093 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
2094 int w = info.getSize().getWidth();
2095 int h = info.getSize().getHeight();
2096 Rect r = rectForSize(w, h, size);
2097 decoder.setTargetSize(r.width(), r.height());
2098
2099 int newSize = Math.min(r.width(), r.height());
2100 int left = (r.width() - newSize) / 2;
2101 int top = (r.height() - newSize) / 2;
2102 decoder.setCrop(new Rect(left, top, left + newSize, top + newSize));
2103 });
2104 } catch (final IOException e) {
2105 return getSVGSquare(getAvatarUri(avatar), size);
2106 }
2107 } else {
2108 Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
2109 return bm == null ? null : new BitmapDrawable(bm);
2110 }
2111 }
2112
2113 public Drawable getSVGSquare(Uri uri, int size) {
2114 try {
2115 SVG svg = SVG.getFromInputStream(mXmppConnectionService.getContentResolver().openInputStream(uri));
2116 svg.setDocumentPreserveAspectRatio(com.caverock.androidsvg.PreserveAspectRatio.FULLSCREEN);
2117 svg.setDocumentWidth("100%");
2118 svg.setDocumentHeight("100%");
2119
2120 float w = svg.getDocumentWidth();
2121 float h = svg.getDocumentHeight();
2122 float scale = Math.max((float) size / h, (float) size / w);
2123 float outWidth = scale * w;
2124 float outHeight = scale * h;
2125 float left = (size - outWidth) / 2;
2126 float top = (size - outHeight) / 2;
2127 RectF target = new RectF(left, top, left + outWidth, top + outHeight);
2128
2129 Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
2130 Canvas canvas = new Canvas(output);
2131 svg.renderToCanvas(canvas, target);
2132
2133 return new SVGDrawable(output);
2134 } catch (final IOException | SVGParseException e) {
2135 return null;
2136 }
2137 }
2138
2139 public Drawable getSVG(File file, int size) {
2140 try {
2141 SVG svg = SVG.getFromInputStream(new FileInputStream(file));
2142 svg.setDocumentPreserveAspectRatio(com.caverock.androidsvg.PreserveAspectRatio.TOP);
2143
2144 float w = svg.getDocumentWidth();
2145 float h = svg.getDocumentHeight();
2146 Rect r = rectForSize((int) w, (int) h, size);
2147 svg.setDocumentWidth("100%");
2148 svg.setDocumentHeight("100%");
2149
2150 Bitmap output = Bitmap.createBitmap(r.width(), r.height(), Bitmap.Config.ARGB_8888);
2151 Canvas canvas = new Canvas(output);
2152 svg.renderToCanvas(canvas);
2153
2154 return new SVGDrawable(output);
2155 } catch (final IOException | SVGParseException e) {
2156 return null;
2157 }
2158 }
2159
2160 private static class Dimensions {
2161 public final int width;
2162 public final int height;
2163
2164 Dimensions(int height, int width) {
2165 this.width = width;
2166 this.height = height;
2167 }
2168
2169 public int getMin() {
2170 return Math.min(width, height);
2171 }
2172
2173 public boolean valid() {
2174 return width > 0 && height > 0;
2175 }
2176 }
2177
2178 private static class NotAVideoFile extends Exception {
2179 public NotAVideoFile(Throwable t) {
2180 super(t);
2181 }
2182
2183 public NotAVideoFile() {
2184 super();
2185 }
2186 }
2187
2188 public static class ImageCompressionException extends Exception {
2189
2190 ImageCompressionException(String message) {
2191 super(message);
2192 }
2193 }
2194
2195 public static class FileCopyException extends Exception {
2196 private final int resId;
2197
2198 private FileCopyException(@StringRes int resId) {
2199 this.resId = resId;
2200 }
2201
2202 public @StringRes int getResId() {
2203 return resId;
2204 }
2205 }
2206
2207 public static class SVGDrawable extends BitmapDrawable {
2208 public SVGDrawable(Bitmap bm) { super(bm); }
2209 }
2210}