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 final File f = new File(path);
219 return path.startsWith(androidDataPath) || !f.canRead();
220 }
221
222 private static Paint createAntiAliasingPaint() {
223 Paint paint = new Paint();
224 paint.setAntiAlias(true);
225 paint.setFilterBitmap(true);
226 paint.setDither(true);
227 return paint;
228 }
229
230 public static Uri getUriForUri(Context context, Uri uri) {
231 if ("file".equals(uri.getScheme())) {
232 return getUriForFile(context, new File(uri.getPath()));
233 } else {
234 return uri;
235 }
236 }
237
238 public static Uri getUriForFile(Context context, File file) {
239 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N || Config.ONLY_INTERNAL_STORAGE) {
240 try {
241 return FileProvider.getUriForFile(context, getAuthority(context), file);
242 } catch (IllegalArgumentException e) {
243 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
244 throw new SecurityException(e);
245 } else {
246 return Uri.fromFile(file);
247 }
248 }
249 } else {
250 return Uri.fromFile(file);
251 }
252 }
253
254 public static String getAuthority(Context context) {
255 return context.getPackageName() + FILE_PROVIDER;
256 }
257
258 private static boolean hasAlpha(final Bitmap bitmap) {
259 final int w = bitmap.getWidth();
260 final int h = bitmap.getHeight();
261 final int yStep = Math.max(1, w / 100);
262 final int xStep = Math.max(1, h / 100);
263 for (int x = 0; x < w; x += xStep) {
264 for (int y = 0; y < h; y += yStep) {
265 if (Color.alpha(bitmap.getPixel(x, y)) < 255) {
266 return true;
267 }
268 }
269 }
270 return false;
271 }
272
273 private static int calcSampleSize(File image, int size) {
274 BitmapFactory.Options options = new BitmapFactory.Options();
275 options.inJustDecodeBounds = true;
276 BitmapFactory.decodeFile(image.getAbsolutePath(), options);
277 return calcSampleSize(options, size);
278 }
279
280 private static int calcSampleSize(BitmapFactory.Options options, int size) {
281 int height = options.outHeight;
282 int width = options.outWidth;
283 int inSampleSize = 1;
284
285 if (height > size || width > size) {
286 int halfHeight = height / 2;
287 int halfWidth = width / 2;
288
289 while ((halfHeight / inSampleSize) > size && (halfWidth / inSampleSize) > size) {
290 inSampleSize *= 2;
291 }
292 }
293 return inSampleSize;
294 }
295
296 private static Dimensions getVideoDimensions(Context context, Uri uri) throws NotAVideoFile, IOException {
297 MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
298 try {
299 mediaMetadataRetriever.setDataSource(context, uri);
300 } catch (RuntimeException e) {
301 throw new NotAVideoFile(e);
302 }
303 return getVideoDimensions(mediaMetadataRetriever);
304 }
305
306 private static Dimensions getVideoDimensionsOfFrame(
307 MediaMetadataRetriever mediaMetadataRetriever) {
308 Bitmap bitmap = null;
309 try {
310 bitmap = mediaMetadataRetriever.getFrameAtTime();
311 return new Dimensions(bitmap.getHeight(), bitmap.getWidth());
312 } catch (Exception e) {
313 return null;
314 } finally {
315 if (bitmap != null) {
316 bitmap.recycle();
317 }
318 }
319 }
320
321 private static Dimensions getVideoDimensions(MediaMetadataRetriever metadataRetriever)
322 throws NotAVideoFile, IOException {
323 String hasVideo =
324 metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
325 if (hasVideo == null) {
326 throw new NotAVideoFile();
327 }
328 Dimensions dimensions = getVideoDimensionsOfFrame(metadataRetriever);
329 if (dimensions != null) {
330 return dimensions;
331 }
332 final int rotation = extractRotationFromMediaRetriever(metadataRetriever);
333 boolean rotated = rotation == 90 || rotation == 270;
334 int height;
335 try {
336 String h =
337 metadataRetriever.extractMetadata(
338 MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
339 height = Integer.parseInt(h);
340 } catch (Exception e) {
341 height = -1;
342 }
343 int width;
344 try {
345 String w =
346 metadataRetriever.extractMetadata(
347 MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
348 width = Integer.parseInt(w);
349 } catch (Exception e) {
350 width = -1;
351 }
352 try {
353 metadataRetriever.release();
354 } catch (final IOException e) {
355 throw new NotAVideoFile();
356 }
357 Log.d(Config.LOGTAG, "extracted video dims " + width + "x" + height);
358 return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
359 }
360
361 private static int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
362 String r =
363 metadataRetriever.extractMetadata(
364 MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
365 try {
366 return Integer.parseInt(r);
367 } catch (Exception e) {
368 return 0;
369 }
370 }
371
372 public static void close(final Closeable stream) {
373 if (stream != null) {
374 try {
375 stream.close();
376 } catch (Exception e) {
377 Log.d(Config.LOGTAG, "unable to close stream", e);
378 }
379 }
380 }
381
382 public static void close(final Socket socket) {
383 if (socket != null) {
384 try {
385 socket.close();
386 } catch (IOException e) {
387 Log.d(Config.LOGTAG, "unable to close socket", e);
388 }
389 }
390 }
391
392 public static void close(final ServerSocket socket) {
393 if (socket != null) {
394 try {
395 socket.close();
396 } catch (IOException e) {
397 Log.d(Config.LOGTAG, "unable to close server socket", e);
398 }
399 }
400 }
401
402 public static boolean weOwnFile(final Uri uri) {
403 if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
404 return false;
405 } else {
406 return weOwnFileLollipop(uri);
407 }
408 }
409
410 private static boolean weOwnFileLollipop(final Uri uri) {
411 final String path = uri.getPath();
412 if (path == null) {
413 return false;
414 }
415 try {
416 File file = new File(path);
417 FileDescriptor fd =
418 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)
419 .getFileDescriptor();
420 StructStat st = Os.fstat(fd);
421 return st.st_uid == android.os.Process.myUid();
422 } catch (FileNotFoundException e) {
423 return false;
424 } catch (Exception e) {
425 return true;
426 }
427 }
428
429 public static Uri getMediaUri(Context context, File file) {
430 final String filePath = file.getAbsolutePath();
431 try (final Cursor cursor =
432 context.getContentResolver()
433 .query(
434 MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
435 new String[] {MediaStore.Images.Media._ID},
436 MediaStore.Images.Media.DATA + "=? ",
437 new String[] {filePath},
438 null)) {
439 if (cursor != null && cursor.moveToFirst()) {
440 final int id =
441 cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns._ID));
442 return Uri.withAppendedPath(
443 MediaStore.Images.Media.EXTERNAL_CONTENT_URI, String.valueOf(id));
444 } else {
445 return null;
446 }
447 } catch (final Exception e) {
448 return null;
449 }
450 }
451
452 public static void updateFileParams(Message message, String url, long size) {
453 Message.FileParams fileParams = new Message.FileParams();
454 fileParams.url = url;
455 fileParams.size = size;
456 message.setFileParams(fileParams);
457 }
458
459 public Bitmap getPreviewForUri(Attachment attachment, int size, boolean cacheOnly) {
460 final String key = "attachment_" + attachment.getUuid().toString() + "_" + size;
461 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
462 Drawable drawable = cache.get(key);
463 if (drawable != null || cacheOnly) {
464 return drawDrawable(drawable);
465 }
466 Bitmap bitmap = null;
467 final String mime = attachment.getMime();
468 if ("application/pdf".equals(mime)) {
469 bitmap = cropCenterSquarePdf(attachment.getUri(), size);
470 drawOverlay(
471 bitmap,
472 paintOverlayBlackPdf(bitmap)
473 ? R.drawable.open_pdf_black
474 : R.drawable.open_pdf_white,
475 0.75f);
476 } else if (mime != null && mime.startsWith("video/")) {
477 bitmap = cropCenterSquareVideo(attachment.getUri(), size);
478 drawOverlay(
479 bitmap,
480 paintOverlayBlack(bitmap)
481 ? R.drawable.play_video_black
482 : R.drawable.play_video_white,
483 0.75f);
484 } else {
485 bitmap = cropCenterSquare(attachment.getUri(), size);
486 if (bitmap != null && "image/gif".equals(mime)) {
487 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
488 drawOverlay(
489 withGifOverlay,
490 paintOverlayBlack(withGifOverlay)
491 ? R.drawable.play_gif_black
492 : R.drawable.play_gif_white,
493 1.0f);
494 bitmap.recycle();
495 bitmap = withGifOverlay;
496 }
497 }
498 if (key != null && bitmap != null) {
499 cache.put(key, new BitmapDrawable(bitmap));
500 }
501 return bitmap;
502 }
503
504 public void updateMediaScanner(File file) {
505 updateMediaScanner(file, null);
506 }
507
508 public void updateMediaScanner(File file, final Runnable callback) {
509 MediaScannerConnection.scanFile(
510 mXmppConnectionService,
511 new String[] {file.getAbsolutePath()},
512 null,
513 new MediaScannerConnection.MediaScannerConnectionClient() {
514 @Override
515 public void onMediaScannerConnected() {}
516
517 @Override
518 public void onScanCompleted(String path, Uri uri) {
519 if (callback != null && file.getAbsolutePath().equals(path)) {
520 callback.run();
521 } else {
522 Log.d(Config.LOGTAG, "media scanner scanned wrong file");
523 if (callback != null) {
524 callback.run();
525 }
526 }
527 }
528 });
529 }
530
531 public boolean deleteFile(Message message) {
532 File file = getFile(message);
533 if (file.delete()) {
534 updateMediaScanner(file);
535 return true;
536 } else {
537 return false;
538 }
539 }
540
541 public DownloadableFile getFile(Message message) {
542 return getFile(message, true);
543 }
544
545 public DownloadableFile getFileForPath(String path) {
546 return getFileForPath(
547 path,
548 MimeUtils.guessMimeTypeFromExtension(MimeUtils.extractRelevantExtension(path)));
549 }
550
551 private DownloadableFile getFileForPath(final String path, final String mime) {
552 if (path.startsWith("/")) {
553 return new DownloadableFile(path);
554 } else {
555 return getLegacyFileForFilename(path, mime);
556 }
557 }
558
559 public DownloadableFile getLegacyFileForFilename(final String filename, final String mime) {
560 if (Strings.isNullOrEmpty(mime)) {
561 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
562 } else if (mime.startsWith("image/")) {
563 return new DownloadableFile(getLegacyStorageLocation("Images"), filename);
564 } else if (mime.startsWith("video/")) {
565 return new DownloadableFile(getLegacyStorageLocation("Videos"), filename);
566 } else {
567 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
568 }
569 }
570
571 public boolean isInternalFile(final File file) {
572 final File internalFile = getFileForPath(file.getName());
573 return file.getAbsolutePath().equals(internalFile.getAbsolutePath());
574 }
575
576 public DownloadableFile getFile(Message message, boolean decrypted) {
577 final boolean encrypted =
578 !decrypted
579 && (message.getEncryption() == Message.ENCRYPTION_PGP
580 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
581 String path = message.getRelativeFilePath();
582 if (path == null) {
583 path = message.getUuid();
584 }
585 final DownloadableFile file = getFileForPath(path, message.getMimeType());
586 if (encrypted) {
587 return new DownloadableFile(
588 mXmppConnectionService.getCacheDir(),
589 String.format("%s.%s", file.getName(), "pgp"));
590 } else {
591 return file;
592 }
593 }
594
595 public List<Attachment> convertToAttachments(List<DatabaseBackend.FilePath> relativeFilePaths) {
596 final List<Attachment> attachments = new ArrayList<>();
597 for (final DatabaseBackend.FilePath relativeFilePath : relativeFilePaths) {
598 final String mime =
599 MimeUtils.guessMimeTypeFromExtension(
600 MimeUtils.extractRelevantExtension(relativeFilePath.path));
601 final File file = getFileForPath(relativeFilePath.path, mime);
602 attachments.add(Attachment.of(relativeFilePath.uuid, file, mime));
603 }
604 return attachments;
605 }
606
607 private File getLegacyStorageLocation(final String type) {
608 if (Config.ONLY_INTERNAL_STORAGE) {
609 return new File(mXmppConnectionService.getFilesDir(), type);
610 } else {
611 final File appDirectory =
612 new File(
613 Environment.getExternalStorageDirectory(),
614 mXmppConnectionService.getString(R.string.app_name));
615 final File appMediaDirectory = new File(appDirectory, "Media");
616 final String locationName =
617 String.format(
618 "%s %s", mXmppConnectionService.getString(R.string.app_name), type);
619 return new File(appMediaDirectory, locationName);
620 }
621 }
622
623 private Bitmap resize(final Bitmap originalBitmap, int size) throws IOException {
624 int w = originalBitmap.getWidth();
625 int h = originalBitmap.getHeight();
626 if (w <= 0 || h <= 0) {
627 throw new IOException("Decoded bitmap reported bounds smaller 0");
628 } else if (Math.max(w, h) > size) {
629 int scalledW;
630 int scalledH;
631 if (w <= h) {
632 scalledW = Math.max((int) (w / ((double) h / size)), 1);
633 scalledH = size;
634 } else {
635 scalledW = size;
636 scalledH = Math.max((int) (h / ((double) w / size)), 1);
637 }
638 final Bitmap result =
639 Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
640 if (!originalBitmap.isRecycled()) {
641 originalBitmap.recycle();
642 }
643 return result;
644 } else {
645 return originalBitmap;
646 }
647 }
648
649 public boolean useImageAsIs(final Uri uri) {
650 final String path = getOriginalPath(uri);
651 if (path == null || isPathBlacklisted(path)) {
652 return false;
653 }
654 final File file = new File(path);
655 long size = file.length();
656 if (size == 0
657 || size
658 >= mXmppConnectionService
659 .getResources()
660 .getInteger(R.integer.auto_accept_filesize)) {
661 return false;
662 }
663 BitmapFactory.Options options = new BitmapFactory.Options();
664 options.inJustDecodeBounds = true;
665 try {
666 for (Cid cid : calculateCids(uri)) {
667 if (mXmppConnectionService.getUrlForCid(cid) != null) return true;
668 }
669 final InputStream inputStream =
670 mXmppConnectionService.getContentResolver().openInputStream(uri);
671 BitmapFactory.decodeStream(inputStream, null, options);
672 close(inputStream);
673 if (options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
674 return false;
675 }
676 return (options.outWidth <= Config.IMAGE_SIZE
677 && options.outHeight <= Config.IMAGE_SIZE
678 && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
679 } catch (final IOException e) {
680 Log.d(Config.LOGTAG, "unable to get image dimensions", e);
681 return false;
682 }
683 }
684
685 public String getOriginalPath(Uri uri) {
686 return FileUtils.getPath(mXmppConnectionService, uri);
687 }
688
689 public void copyFileToDocumentFile(Context ctx, File file, DocumentFile df) throws FileCopyException {
690 Log.d(
691 Config.LOGTAG,
692 "copy file (" + file + ") to " + df);
693 try (final InputStream is = new FileInputStream(file);
694 final OutputStream os =
695 mXmppConnectionService.getContentResolver().openOutputStream(df.getUri())) {
696 if (is == null) {
697 throw new FileCopyException(R.string.error_file_not_found);
698 }
699 try {
700 ByteStreams.copy(is, os);
701 os.flush();
702 } catch (IOException e) {
703 throw new FileWriterException(file);
704 }
705 } catch (final FileNotFoundException e) {
706 throw new FileCopyException(R.string.error_file_not_found);
707 } catch (final FileWriterException e) {
708 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
709 } catch (final SecurityException | IllegalStateException e) {
710 throw new FileCopyException(R.string.error_security_exception);
711 } catch (final IOException e) {
712 throw new FileCopyException(R.string.error_io_exception);
713 }
714 }
715
716 private void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
717 Log.d(
718 Config.LOGTAG,
719 "copy file (" + uri.toString() + ") to private storage " + file.getAbsolutePath());
720 file.getParentFile().mkdirs();
721 try {
722 file.createNewFile();
723 } catch (IOException e) {
724 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
725 }
726 try (final OutputStream os = new FileOutputStream(file);
727 final InputStream is =
728 mXmppConnectionService.getContentResolver().openInputStream(uri)) {
729 if (is == null) {
730 throw new FileCopyException(R.string.error_file_not_found);
731 }
732 try {
733 ByteStreams.copy(is, os);
734 } catch (IOException e) {
735 throw new FileWriterException(file);
736 }
737 try {
738 os.flush();
739 } catch (IOException e) {
740 throw new FileWriterException(file);
741 }
742 } catch (final FileNotFoundException e) {
743 cleanup(file);
744 throw new FileCopyException(R.string.error_file_not_found);
745 } catch (final FileWriterException e) {
746 cleanup(file);
747 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
748 } catch (final SecurityException | IllegalStateException e) {
749 cleanup(file);
750 throw new FileCopyException(R.string.error_security_exception);
751 } catch (final IOException e) {
752 cleanup(file);
753 throw new FileCopyException(R.string.error_io_exception);
754 }
755 }
756
757 public void copyFileToPrivateStorage(Message message, Uri uri, String type)
758 throws FileCopyException {
759 String mime = MimeUtils.guessMimeTypeFromUriAndMime(mXmppConnectionService, uri, type);
760 Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime=" + mime + ")");
761 String extension = MimeUtils.guessExtensionFromMimeType(mime);
762 if (extension == null) {
763 Log.d(Config.LOGTAG, "extension from mime type was null");
764 extension = getExtensionFromUri(uri);
765 }
766 if ("ogg".equals(extension) && type != null && type.startsWith("audio/")) {
767 extension = "oga";
768 }
769
770 try {
771 setupRelativeFilePath(message, uri, extension);
772 copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
773 final String name = getDisplayNameFromUri(uri);
774 if (name != null) {
775 message.getFileParams().setName(name);
776 }
777 } catch (final XmppConnectionService.BlockedMediaException e) {
778 message.setRelativeFilePath(null);
779 message.setDeleted(true);
780 }
781 }
782
783 private String getDisplayNameFromUri(final Uri uri) {
784 final String[] projection = {OpenableColumns.DISPLAY_NAME};
785 String filename = null;
786 try (final Cursor cursor =
787 mXmppConnectionService
788 .getContentResolver()
789 .query(uri, projection, null, null, null)) {
790 if (cursor != null && cursor.moveToFirst()) {
791 filename = cursor.getString(0);
792 }
793 } catch (final Exception e) {
794 filename = null;
795 }
796 return filename;
797 }
798
799 private String getExtensionFromUri(final Uri uri) {
800 final String[] projection = {MediaStore.MediaColumns.DATA};
801 String filename = null;
802 try (final Cursor cursor =
803 mXmppConnectionService
804 .getContentResolver()
805 .query(uri, projection, null, null, null)) {
806 if (cursor != null && cursor.moveToFirst()) {
807 filename = cursor.getString(0);
808 }
809 } catch (final Exception e) {
810 filename = null;
811 }
812 if (filename == null) {
813 final List<String> segments = uri.getPathSegments();
814 if (segments.size() > 0) {
815 filename = segments.get(segments.size() - 1);
816 }
817 }
818 final int pos = filename == null ? -1 : filename.lastIndexOf('.');
819 return pos > 0 ? filename.substring(pos + 1) : null;
820 }
821
822 private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
823 throws FileCopyException, ImageCompressionException {
824 final File parent = file.getParentFile();
825 if (parent != null && parent.mkdirs()) {
826 Log.d(Config.LOGTAG, "created parent directory");
827 }
828 InputStream is = null;
829 OutputStream os = null;
830 try {
831 if (!file.exists() && !file.createNewFile()) {
832 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
833 }
834 is = mXmppConnectionService.getContentResolver().openInputStream(image);
835 if (is == null) {
836 throw new FileCopyException(R.string.error_not_an_image_file);
837 }
838 final Bitmap originalBitmap;
839 final BitmapFactory.Options options = new BitmapFactory.Options();
840 final int inSampleSize = (int) Math.pow(2, sampleSize);
841 Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
842 options.inSampleSize = inSampleSize;
843 originalBitmap = BitmapFactory.decodeStream(is, null, options);
844 is.close();
845 if (originalBitmap == null) {
846 throw new ImageCompressionException("Source file was not an image");
847 }
848 if (!"image/jpeg".equals(options.outMimeType) && hasAlpha(originalBitmap)) {
849 originalBitmap.recycle();
850 throw new ImageCompressionException("Source file had alpha channel");
851 }
852 Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
853 final int rotation = getRotation(image);
854 scaledBitmap = rotate(scaledBitmap, rotation);
855 boolean targetSizeReached = false;
856 int quality = Config.IMAGE_QUALITY;
857 final int imageMaxSize =
858 mXmppConnectionService
859 .getResources()
860 .getInteger(R.integer.auto_accept_filesize);
861 while (!targetSizeReached) {
862 os = new FileOutputStream(file);
863 Log.d(Config.LOGTAG, "compressing image with quality " + quality);
864 boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
865 if (!success) {
866 throw new FileCopyException(R.string.error_compressing_image);
867 }
868 os.flush();
869 final long fileSize = file.length();
870 Log.d(Config.LOGTAG, "achieved file size of " + fileSize);
871 targetSizeReached = fileSize <= imageMaxSize || quality <= 50;
872 quality -= 5;
873 }
874 scaledBitmap.recycle();
875 } catch (final FileNotFoundException e) {
876 cleanup(file);
877 throw new FileCopyException(R.string.error_file_not_found);
878 } catch (final IOException e) {
879 cleanup(file);
880 throw new FileCopyException(R.string.error_io_exception);
881 } catch (SecurityException e) {
882 cleanup(file);
883 throw new FileCopyException(R.string.error_security_exception_during_image_copy);
884 } catch (final OutOfMemoryError e) {
885 ++sampleSize;
886 if (sampleSize <= 3) {
887 copyImageToPrivateStorage(file, image, sampleSize);
888 } else {
889 throw new FileCopyException(R.string.error_out_of_memory);
890 }
891 } finally {
892 close(os);
893 close(is);
894 }
895 }
896
897 private static void cleanup(final File file) {
898 try {
899 file.delete();
900 } catch (Exception e) {
901
902 }
903 }
904
905 public void copyImageToPrivateStorage(File file, Uri image)
906 throws FileCopyException, ImageCompressionException {
907 Log.d(
908 Config.LOGTAG,
909 "copy image ("
910 + image.toString()
911 + ") to private storage "
912 + file.getAbsolutePath());
913 copyImageToPrivateStorage(file, image, 0);
914 }
915
916 public void copyImageToPrivateStorage(Message message, Uri image)
917 throws FileCopyException, ImageCompressionException {
918 final String filename;
919 switch (Config.IMAGE_FORMAT) {
920 case JPEG:
921 filename = String.format("%s.%s", message.getUuid(), "jpg");
922 break;
923 case PNG:
924 filename = String.format("%s.%s", message.getUuid(), "png");
925 break;
926 case WEBP:
927 filename = String.format("%s.%s", message.getUuid(), "webp");
928 break;
929 default:
930 throw new IllegalStateException("Unknown image format");
931 }
932 setupRelativeFilePath(message, filename);
933 final File tmp = getFile(message);
934 copyImageToPrivateStorage(tmp, image);
935 final String extension = MimeUtils.extractRelevantExtension(filename);
936 try {
937 setupRelativeFilePath(message, new FileInputStream(tmp), extension);
938 } catch (final FileNotFoundException e) {
939 throw new FileCopyException(R.string.error_file_not_found);
940 } catch (final IOException e) {
941 throw new FileCopyException(R.string.error_io_exception);
942 } catch (final XmppConnectionService.BlockedMediaException e) {
943 tmp.delete();
944 message.setRelativeFilePath(null);
945 message.setDeleted(true);
946 return;
947 }
948 tmp.renameTo(getFile(message));
949 updateFileParams(message, null, false);
950 }
951
952 public void setupRelativeFilePath(final Message message, final Uri uri, final String extension) throws FileCopyException, XmppConnectionService.BlockedMediaException {
953 try {
954 setupRelativeFilePath(message, mXmppConnectionService.getContentResolver().openInputStream(uri), extension);
955 } catch (final FileNotFoundException e) {
956 throw new FileCopyException(R.string.error_file_not_found);
957 } catch (final IOException e) {
958 throw new FileCopyException(R.string.error_io_exception);
959 }
960 }
961
962 public Cid[] calculateCids(final Uri uri) throws IOException {
963 return calculateCids(mXmppConnectionService.getContentResolver().openInputStream(uri));
964 }
965
966 public Cid[] calculateCids(final InputStream is) throws IOException {
967 try {
968 return CryptoHelper.cid(is, new String[]{"SHA-256", "SHA-1", "SHA-512"});
969 } catch (final NoSuchAlgorithmException e) {
970 throw new AssertionError(e);
971 }
972 }
973
974 public void setupRelativeFilePath(final Message message, final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
975 message.setRelativeFilePath(getStorageLocation(is, extension).getAbsolutePath());
976 }
977
978 public void setupRelativeFilePath(final Message message, final String filename) {
979 final String extension = MimeUtils.extractRelevantExtension(filename);
980 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
981 setupRelativeFilePath(message, filename, mime);
982 }
983
984 public File getStorageLocation(final InputStream is, final String extension) throws IOException, XmppConnectionService.BlockedMediaException {
985 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
986 Cid[] cids = calculateCids(is);
987 String base = cids[0].toString();
988
989 File file = null;
990 while (file == null || (file.exists() && !file.canRead())) {
991 file = getStorageLocation(String.format("%s.%s", base, extension), mime);
992 base += "_";
993 }
994 for (int i = 0; i < cids.length; i++) {
995 mXmppConnectionService.saveCid(cids[i], file);
996 }
997 return file;
998 }
999
1000 public File getStorageLocation(final String filename, final String mime) {
1001 final File parentDirectory;
1002 if (Strings.isNullOrEmpty(mime)) {
1003 parentDirectory =
1004 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
1005 } else if (mime.startsWith("image/")) {
1006 parentDirectory =
1007 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
1008 } else if (mime.startsWith("video/")) {
1009 parentDirectory =
1010 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
1011 } else if (MediaAdapter.DOCUMENT_MIMES.contains(mime)) {
1012 parentDirectory =
1013 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
1014 } else {
1015 parentDirectory =
1016 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
1017 }
1018 final File appDirectory =
1019 new File(parentDirectory, mXmppConnectionService.getString(R.string.app_name));
1020 return new File(appDirectory, filename);
1021 }
1022
1023 public static boolean inConversationsDirectory(final Context context, String path) {
1024 final File fileDirectory = new File(path).getParentFile();
1025 for (final String type : STORAGE_TYPES) {
1026 final File typeDirectory =
1027 new File(
1028 Environment.getExternalStoragePublicDirectory(type),
1029 context.getString(R.string.app_name));
1030 if (typeDirectory.equals(fileDirectory)) {
1031 return true;
1032 }
1033 }
1034 return false;
1035 }
1036
1037 public void setupRelativeFilePath(
1038 final Message message, final String filename, final String mime) {
1039 final File file = getStorageLocation(filename, mime);
1040 message.setRelativeFilePath(file.getAbsolutePath());
1041 }
1042
1043 public boolean unusualBounds(final Uri image) {
1044 try {
1045 final BitmapFactory.Options options = new BitmapFactory.Options();
1046 options.inJustDecodeBounds = true;
1047 final InputStream inputStream =
1048 mXmppConnectionService.getContentResolver().openInputStream(image);
1049 BitmapFactory.decodeStream(inputStream, null, options);
1050 close(inputStream);
1051 float ratio = (float) options.outHeight / options.outWidth;
1052 return ratio > (21.0f / 9.0f) || ratio < (9.0f / 21.0f);
1053 } catch (final Exception e) {
1054 Log.w(Config.LOGTAG, "unable to detect image bounds", e);
1055 return false;
1056 }
1057 }
1058
1059 private int getRotation(final File file) {
1060 try (final InputStream inputStream = new FileInputStream(file)) {
1061 return getRotation(inputStream);
1062 } catch (Exception e) {
1063 return 0;
1064 }
1065 }
1066
1067 private int getRotation(final Uri image) {
1068 try (final InputStream is =
1069 mXmppConnectionService.getContentResolver().openInputStream(image)) {
1070 return is == null ? 0 : getRotation(is);
1071 } catch (final Exception e) {
1072 return 0;
1073 }
1074 }
1075
1076 private static int getRotation(final InputStream inputStream) throws IOException {
1077 final ExifInterface exif = new ExifInterface(inputStream);
1078 final int orientation =
1079 exif.getAttributeInt(
1080 ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
1081 switch (orientation) {
1082 case ExifInterface.ORIENTATION_ROTATE_180:
1083 return 180;
1084 case ExifInterface.ORIENTATION_ROTATE_90:
1085 return 90;
1086 case ExifInterface.ORIENTATION_ROTATE_270:
1087 return 270;
1088 default:
1089 return 0;
1090 }
1091 }
1092
1093 public BitmapDrawable getFallbackThumbnail(final Message message, int size, boolean cacheOnly) {
1094 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1095 if (thumbs != null && !thumbs.isEmpty()) {
1096 for (Element thumb : thumbs) {
1097 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1098 if (uri.getScheme().equals("data")) {
1099 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1100
1101 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1102 BitmapDrawable cached = (BitmapDrawable) cache.get(parts[1]);
1103 if (cached != null || cacheOnly) return cached;
1104
1105 byte[] data;
1106 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1107 String[] parts2 = parts[0].split(";", 2);
1108 parts[0] = parts2[0];
1109 data = Base64.decode(parts[1], 0);
1110 } else {
1111 try {
1112 data = parts[1].getBytes("UTF-8");
1113 } catch (final IOException e) {
1114 data = new byte[0];
1115 }
1116 }
1117
1118 if (parts[0].equals("image/blurhash")) {
1119 int width = message.getFileParams().width;
1120 if (width < 1 && thumb.getAttribute("width") != null) width = Integer.parseInt(thumb.getAttribute("width"));
1121 if (width < 1) width = 1920;
1122
1123 int height = message.getFileParams().height;
1124 if (height < 1 && thumb.getAttribute("height") != null) height = Integer.parseInt(thumb.getAttribute("height"));
1125 if (height < 1) height = 1080;
1126 Rect r = rectForSize(width, height, size);
1127
1128 Bitmap blurhash = BlurHashDecoder.INSTANCE.decode(parts[1], r.width(), r.height(), 1.0f, false);
1129 if (blurhash != null) {
1130 cached = new BitmapDrawable(blurhash);
1131 if (parts[1] != null && cached != null) cache.put(parts[1], cached);
1132 return cached;
1133 }
1134 } else if (parts[0].equals("image/thumbhash")) {
1135 ThumbHash.Image image;
1136 try {
1137 image = ThumbHash.thumbHashToRGBA(data);
1138 } catch (final Exception e) {
1139 continue;
1140 }
1141 int[] pixels = new int[image.width * image.height];
1142 for (int i = 0; i < pixels.length; i++) {
1143 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);
1144 }
1145 cached = new BitmapDrawable(Bitmap.createBitmap(pixels, image.width, image.height, Bitmap.Config.ARGB_8888));
1146 if (parts[1] != null && cached != null) cache.put(parts[1], cached);
1147 return cached;
1148 }
1149 }
1150 }
1151 }
1152
1153 return null;
1154 }
1155
1156 public Drawable getThumbnail(Message message, Resources res, int size, boolean cacheOnly) throws IOException {
1157 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1158 DownloadableFile file = getFile(message);
1159 Drawable thumbnail = cache.get(file.getAbsolutePath());
1160 if (thumbnail != null) return thumbnail;
1161
1162 if ((thumbnail == null) && (!cacheOnly)) {
1163 synchronized (THUMBNAIL_LOCK) {
1164 List<Element> thumbs = message.getFileParams() != null ? message.getFileParams().getThumbnails() : null;
1165 if (thumbs != null && !thumbs.isEmpty()) {
1166 for (Element thumb : thumbs) {
1167 Uri uri = Uri.parse(thumb.getAttribute("uri"));
1168 if (uri.getScheme().equals("data")) {
1169 if (android.os.Build.VERSION.SDK_INT < 28) continue;
1170 String[] parts = uri.getSchemeSpecificPart().split(",", 2);
1171
1172 byte[] data;
1173 if (Arrays.asList(parts[0].split(";")).contains("base64")) {
1174 String[] parts2 = parts[0].split(";", 2);
1175 parts[0] = parts2[0];
1176 data = Base64.decode(parts[1], 0);
1177 } else {
1178 data = parts[1].getBytes("UTF-8");
1179 }
1180
1181 if (parts[0].equals("image/blurhash")) continue; // blurhash only for fallback
1182 if (parts[0].equals("image/thumbhash")) continue; // thumbhash only for fallback
1183
1184 ImageDecoder.Source source = ImageDecoder.createSource(ByteBuffer.wrap(data));
1185 thumbnail = ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1186 int w = info.getSize().getWidth();
1187 int h = info.getSize().getHeight();
1188 Rect r = rectForSize(w, h, size);
1189 decoder.setTargetSize(r.width(), r.height());
1190 });
1191
1192 if (thumbnail != null && file.getAbsolutePath() != null) {
1193 cache.put(file.getAbsolutePath(), thumbnail);
1194 return thumbnail;
1195 }
1196 } else if (uri.getScheme().equals("cid")) {
1197 Cid cid = BobTransfer.cid(uri);
1198 if (cid == null) continue;
1199 DownloadableFile f = mXmppConnectionService.getFileForCid(cid);
1200 if (f != null && f.canRead()) {
1201 return getThumbnail(f, res, size, cacheOnly);
1202 }
1203 }
1204 }
1205 }
1206 }
1207 }
1208
1209 return getThumbnail(file, res, size, cacheOnly);
1210 }
1211
1212 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly) throws IOException {
1213 return getThumbnail(file, res, size, cacheOnly, file.getAbsolutePath());
1214 }
1215
1216 public Drawable getThumbnail(DownloadableFile file, Resources res, int size, boolean cacheOnly, String cacheKey) throws IOException {
1217 final LruCache<String, Drawable> cache = mXmppConnectionService.getDrawableCache();
1218 Drawable thumbnail = cache.get(cacheKey);
1219 if ((thumbnail == null) && (!cacheOnly) && file.exists()) {
1220 synchronized (THUMBNAIL_LOCK) {
1221 thumbnail = cache.get(cacheKey);
1222 if (thumbnail != null) {
1223 return thumbnail;
1224 }
1225 final String mime = file.getMimeType();
1226 if ("image/svg+xml".equals(mime)) {
1227 thumbnail = getSVG(file, size);
1228 } else if ("application/pdf".equals(mime)) {
1229 thumbnail = new BitmapDrawable(res, getPdfDocumentPreview(file, size));
1230 } else if (mime.startsWith("video/")) {
1231 thumbnail = new BitmapDrawable(res, getVideoPreview(file, size));
1232 } else {
1233 thumbnail = getImagePreview(file, res, size, mime);
1234 if (thumbnail == null) {
1235 throw new FileNotFoundException();
1236 }
1237 }
1238 if (cacheKey != null && thumbnail != null) cache.put(cacheKey, thumbnail);
1239 }
1240 }
1241 return thumbnail;
1242 }
1243
1244 public Bitmap getThumbnailBitmap(Message message, Resources res, int size) throws IOException {
1245 final Drawable drawable = getThumbnail(message, res, size, false);
1246 if (drawable == null) return null;
1247 return drawDrawable(drawable);
1248 }
1249
1250 public Bitmap getThumbnailBitmap(DownloadableFile file, Resources res, int size, String cacheKey) throws IOException {
1251 final Drawable drawable = getThumbnail(file, res, size, false, cacheKey);
1252 if (drawable == null) return null;
1253 return drawDrawable(drawable);
1254 }
1255
1256 public static Rect rectForSize(int w, int h, int size) {
1257 int scalledW;
1258 int scalledH;
1259 if (w <= h) {
1260 scalledW = Math.max((int) (w / ((double) h / size)), 1);
1261 scalledH = size;
1262 } else {
1263 scalledW = size;
1264 scalledH = Math.max((int) (h / ((double) w / size)), 1);
1265 }
1266
1267 if (scalledW > w || scalledH > h) return new Rect(0, 0, w, h);
1268
1269 return new Rect(0, 0, scalledW, scalledH);
1270 }
1271
1272 private Drawable getImagePreview(File file, Resources res, int size, final String mime) throws IOException {
1273 if (android.os.Build.VERSION.SDK_INT >= 28) {
1274 ImageDecoder.Source source = ImageDecoder.createSource(file);
1275 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1276 int w = info.getSize().getWidth();
1277 int h = info.getSize().getHeight();
1278 Rect r = rectForSize(w, h, size);
1279 decoder.setTargetSize(r.width(), r.height());
1280 });
1281 } else {
1282 BitmapFactory.Options options = new BitmapFactory.Options();
1283 options.inSampleSize = calcSampleSize(file, size);
1284 Bitmap bitmap = null;
1285 try {
1286 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1287 } catch (OutOfMemoryError e) {
1288 options.inSampleSize *= 2;
1289 bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1290 }
1291 if (bitmap == null) return null;
1292
1293 bitmap = resize(bitmap, size);
1294 bitmap = rotate(bitmap, getRotation(file));
1295 if (mime.equals("image/gif")) {
1296 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
1297 drawOverlay(withGifOverlay, paintOverlayBlack(withGifOverlay) ? R.drawable.play_gif_black : R.drawable.play_gif_white, 1.0f);
1298 bitmap.recycle();
1299 bitmap = withGifOverlay;
1300 }
1301 return new BitmapDrawable(res, bitmap);
1302 }
1303 }
1304
1305 public static Bitmap drawDrawable(Drawable drawable) {
1306 if (drawable == null) return null;
1307
1308 Bitmap bitmap = null;
1309
1310 if (drawable instanceof BitmapDrawable) {
1311 bitmap = ((BitmapDrawable) drawable).getBitmap();
1312 if (bitmap != null) return bitmap;
1313 }
1314
1315 Rect bounds = drawable.getBounds();
1316 int width = drawable.getIntrinsicWidth();
1317 if (width < 1) width = bounds == null || bounds.right < 1 ? 256 : bounds.right;
1318 int height = drawable.getIntrinsicHeight();
1319 if (height < 1) height = bounds == null || bounds.bottom < 1 ? 256 : bounds.bottom;
1320
1321 bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
1322 Canvas canvas = new Canvas(bitmap);
1323 drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
1324 drawable.draw(canvas);
1325 return bitmap;
1326 }
1327
1328 private void drawOverlay(Bitmap bitmap, int resource, float factor) {
1329 Bitmap overlay =
1330 BitmapFactory.decodeResource(mXmppConnectionService.getResources(), resource);
1331 Canvas canvas = new Canvas(bitmap);
1332 float targetSize = Math.min(canvas.getWidth(), canvas.getHeight()) * factor;
1333 Log.d(
1334 Config.LOGTAG,
1335 "target size overlay: "
1336 + targetSize
1337 + " overlay bitmap size was "
1338 + overlay.getHeight());
1339 float left = (canvas.getWidth() - targetSize) / 2.0f;
1340 float top = (canvas.getHeight() - targetSize) / 2.0f;
1341 RectF dst = new RectF(left, top, left + targetSize - 1, top + targetSize - 1);
1342 canvas.drawBitmap(overlay, null, dst, createAntiAliasingPaint());
1343 }
1344
1345 /** https://stackoverflow.com/a/3943023/210897 */
1346 private boolean paintOverlayBlack(final Bitmap bitmap) {
1347 final int h = bitmap.getHeight();
1348 final int w = bitmap.getWidth();
1349 int record = 0;
1350 for (int y = Math.round(h * IGNORE_PADDING); y < h - Math.round(h * IGNORE_PADDING); ++y) {
1351 for (int x = Math.round(w * IGNORE_PADDING);
1352 x < w - Math.round(w * IGNORE_PADDING);
1353 ++x) {
1354 int pixel = bitmap.getPixel(x, y);
1355 if ((Color.red(pixel) * 0.299
1356 + Color.green(pixel) * 0.587
1357 + Color.blue(pixel) * 0.114)
1358 > 186) {
1359 --record;
1360 } else {
1361 ++record;
1362 }
1363 }
1364 }
1365 return record < 0;
1366 }
1367
1368 private boolean paintOverlayBlackPdf(final Bitmap bitmap) {
1369 final int h = bitmap.getHeight();
1370 final int w = bitmap.getWidth();
1371 int white = 0;
1372 for (int y = 0; y < h; ++y) {
1373 for (int x = 0; x < w; ++x) {
1374 int pixel = bitmap.getPixel(x, y);
1375 if ((Color.red(pixel) * 0.299
1376 + Color.green(pixel) * 0.587
1377 + Color.blue(pixel) * 0.114)
1378 > 186) {
1379 white++;
1380 }
1381 }
1382 }
1383 return white > (h * w * 0.4f);
1384 }
1385
1386 private Bitmap cropCenterSquareVideo(Uri uri, int size) {
1387 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1388 Bitmap frame;
1389 try {
1390 metadataRetriever.setDataSource(mXmppConnectionService, uri);
1391 frame = metadataRetriever.getFrameAtTime(0);
1392 metadataRetriever.release();
1393 return cropCenterSquare(frame, size);
1394 } catch (Exception e) {
1395 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1396 frame.eraseColor(0xff000000);
1397 return frame;
1398 }
1399 }
1400
1401 private Bitmap getVideoPreview(final File file, final int size) {
1402 final MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1403 Bitmap frame;
1404 try {
1405 metadataRetriever.setDataSource(file.getAbsolutePath());
1406 frame = metadataRetriever.getFrameAtTime(0);
1407 metadataRetriever.release();
1408 frame = resize(frame, size);
1409 } catch (IOException | RuntimeException e) {
1410 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1411 frame.eraseColor(0xff000000);
1412 }
1413 drawOverlay(
1414 frame,
1415 paintOverlayBlack(frame)
1416 ? R.drawable.play_video_black
1417 : R.drawable.play_video_white,
1418 0.75f);
1419 return frame;
1420 }
1421
1422 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1423 private Bitmap getPdfDocumentPreview(final File file, final int size) {
1424 try {
1425 final ParcelFileDescriptor fileDescriptor =
1426 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1427 final Bitmap rendered = renderPdfDocument(fileDescriptor, size, true);
1428 drawOverlay(
1429 rendered,
1430 paintOverlayBlackPdf(rendered)
1431 ? R.drawable.open_pdf_black
1432 : R.drawable.open_pdf_white,
1433 0.75f);
1434 return rendered;
1435 } catch (final IOException | SecurityException e) {
1436 Log.d(Config.LOGTAG, "unable to render PDF document preview", e);
1437 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1438 placeholder.eraseColor(0xff000000);
1439 return placeholder;
1440 }
1441 }
1442
1443 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1444 private Bitmap cropCenterSquarePdf(final Uri uri, final int size) {
1445 try {
1446 ParcelFileDescriptor fileDescriptor =
1447 mXmppConnectionService.getContentResolver().openFileDescriptor(uri, "r");
1448 final Bitmap bitmap = renderPdfDocument(fileDescriptor, size, false);
1449 return cropCenterSquare(bitmap, size);
1450 } catch (Exception e) {
1451 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1452 placeholder.eraseColor(0xff000000);
1453 return placeholder;
1454 }
1455 }
1456
1457 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1458 private Bitmap renderPdfDocument(
1459 ParcelFileDescriptor fileDescriptor, int targetSize, boolean fit) throws IOException {
1460 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1461 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1462 final Dimensions dimensions =
1463 scalePdfDimensions(
1464 new Dimensions(page.getHeight(), page.getWidth()), targetSize, fit);
1465 final Bitmap rendered =
1466 Bitmap.createBitmap(dimensions.width, dimensions.height, Bitmap.Config.ARGB_8888);
1467 rendered.eraseColor(0xffffffff);
1468 page.render(rendered, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
1469 page.close();
1470 pdfRenderer.close();
1471 fileDescriptor.close();
1472 return rendered;
1473 }
1474
1475 public Uri getTakePhotoUri() {
1476 final String filename =
1477 String.format("IMG_%s.%s", IMAGE_DATE_FORMAT.format(new Date()), "jpg");
1478 final File directory;
1479 if (Config.ONLY_INTERNAL_STORAGE) {
1480 directory = new File(mXmppConnectionService.getCacheDir(), "Camera");
1481 } else {
1482 directory =
1483 new File(
1484 Environment.getExternalStoragePublicDirectory(
1485 Environment.DIRECTORY_DCIM),
1486 "Camera");
1487 }
1488 final File file = new File(directory, filename);
1489 file.getParentFile().mkdirs();
1490 return getUriForFile(mXmppConnectionService, file);
1491 }
1492
1493 public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
1494
1495 final Pair<Avatar,Boolean> uncompressAvatar = getUncompressedAvatar(image);
1496 if (uncompressAvatar != null && uncompressAvatar.first != null &&
1497 (uncompressAvatar.first.image.length() <= Config.AVATAR_CHAR_LIMIT || uncompressAvatar.second)) {
1498 return uncompressAvatar.first;
1499 }
1500 if (uncompressAvatar != null && uncompressAvatar.first != null) {
1501 Log.d(
1502 Config.LOGTAG,
1503 "uncompressed avatar exceeded char limit by "
1504 + (uncompressAvatar.first.image.length() - Config.AVATAR_CHAR_LIMIT));
1505 }
1506
1507 Bitmap bm = cropCenterSquare(image, size);
1508 if (bm == null) {
1509 return null;
1510 }
1511 if (hasAlpha(bm)) {
1512 Log.d(Config.LOGTAG, "alpha in avatar detected; uploading as PNG");
1513 bm.recycle();
1514 bm = cropCenterSquare(image, 96);
1515 return getPepAvatar(bm, Bitmap.CompressFormat.PNG, 100);
1516 }
1517 return getPepAvatar(bm, format, 100);
1518 }
1519
1520 private Pair<Avatar,Boolean> getUncompressedAvatar(Uri uri) {
1521 try {
1522 if (android.os.Build.VERSION.SDK_INT >= 28) {
1523 ImageDecoder.Source source = ImageDecoder.createSource(mXmppConnectionService.getContentResolver(), uri);
1524 int[] size = new int[] { 0, 0 };
1525 boolean[] animated = new boolean[] { false };
1526 String[] mimeType = new String[] { null };
1527 Drawable drawable = ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1528 mimeType[0] = info.getMimeType();
1529 animated[0] = info.isAnimated();
1530 size[0] = info.getSize().getWidth();
1531 size[1] = info.getSize().getHeight();
1532 });
1533
1534 if (animated[0]) {
1535 Avatar avatar = getPepAvatar(uri, size[0], size[1], mimeType[0]);
1536 if (avatar != null) return new Pair(avatar, true);
1537 }
1538
1539 return new Pair(getPepAvatar(drawDrawable(drawable), Bitmap.CompressFormat.PNG, 100), false);
1540 } else {
1541 Bitmap bitmap =
1542 BitmapFactory.decodeStream(
1543 mXmppConnectionService.getContentResolver().openInputStream(uri));
1544 return new Pair(getPepAvatar(bitmap, Bitmap.CompressFormat.PNG, 100), false);
1545 }
1546 } catch (Exception e) {
1547 try {
1548 final SVG svg = SVG.getFromInputStream(mXmppConnectionService.getContentResolver().openInputStream(uri));
1549 return new Pair(getPepAvatar(uri, (int) svg.getDocumentWidth(), (int) svg.getDocumentHeight(), "image/svg+xml"), true);
1550 } catch (Exception e2) {
1551 return null;
1552 }
1553 }
1554 }
1555
1556 private Avatar getPepAvatar(Uri uri, int width, int height, final String mimeType) throws IOException, NoSuchAlgorithmException {
1557 AssetFileDescriptor fd = mXmppConnectionService.getContentResolver().openAssetFileDescriptor(uri, "r");
1558 if (fd.getLength() > 100000) return null; // Too big to use raw file
1559
1560 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1561 Base64OutputStream mBase64OutputStream =
1562 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1563 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1564 DigestOutputStream mDigestOutputStream =
1565 new DigestOutputStream(mBase64OutputStream, digest);
1566
1567 ByteStreams.copy(fd.createInputStream(), mDigestOutputStream);
1568 mDigestOutputStream.flush();
1569 mDigestOutputStream.close();
1570
1571 final Avatar avatar = new Avatar();
1572 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1573 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1574 avatar.type = mimeType;
1575 avatar.width = width;
1576 avatar.height = height;
1577 return avatar;
1578 }
1579
1580 private Avatar getPepAvatar(Bitmap bitmap, Bitmap.CompressFormat format, int quality) {
1581 try {
1582 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1583 Base64OutputStream mBase64OutputStream =
1584 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1585 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1586 DigestOutputStream mDigestOutputStream =
1587 new DigestOutputStream(mBase64OutputStream, digest);
1588 if (!bitmap.compress(format, quality, mDigestOutputStream)) {
1589 return null;
1590 }
1591 mDigestOutputStream.flush();
1592 mDigestOutputStream.close();
1593 long chars = mByteArrayOutputStream.size();
1594 if (format != Bitmap.CompressFormat.PNG
1595 && quality >= 50
1596 && chars >= Config.AVATAR_CHAR_LIMIT) {
1597 int q = quality - 2;
1598 Log.d(
1599 Config.LOGTAG,
1600 "avatar char length was " + chars + " reducing quality to " + q);
1601 return getPepAvatar(bitmap, format, q);
1602 }
1603 Log.d(Config.LOGTAG, "settled on char length " + chars + " with quality=" + quality);
1604 final Avatar avatar = new Avatar();
1605 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1606 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1607 if (format.equals(Bitmap.CompressFormat.WEBP)) {
1608 avatar.type = "image/webp";
1609 } else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1610 avatar.type = "image/jpeg";
1611 } else if (format.equals(Bitmap.CompressFormat.PNG)) {
1612 avatar.type = "image/png";
1613 }
1614 avatar.width = bitmap.getWidth();
1615 avatar.height = bitmap.getHeight();
1616 return avatar;
1617 } catch (OutOfMemoryError e) {
1618 Log.d(Config.LOGTAG, "unable to convert avatar to base64 due to low memory");
1619 return null;
1620 } catch (Exception e) {
1621 return null;
1622 }
1623 }
1624
1625 public Avatar getStoredPepAvatar(String hash) {
1626 if (hash == null) {
1627 return null;
1628 }
1629 Avatar avatar = new Avatar();
1630 final File file = getAvatarFile(hash);
1631 FileInputStream is = null;
1632 try {
1633 avatar.size = file.length();
1634 BitmapFactory.Options options = new BitmapFactory.Options();
1635 options.inJustDecodeBounds = true;
1636 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1637 is = new FileInputStream(file);
1638 ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
1639 Base64OutputStream mBase64OutputStream =
1640 new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
1641 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1642 DigestOutputStream os = new DigestOutputStream(mBase64OutputStream, digest);
1643 byte[] buffer = new byte[4096];
1644 int length;
1645 while ((length = is.read(buffer)) > 0) {
1646 os.write(buffer, 0, length);
1647 }
1648 os.flush();
1649 os.close();
1650 avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
1651 avatar.image = new String(mByteArrayOutputStream.toByteArray());
1652 avatar.height = options.outHeight;
1653 avatar.width = options.outWidth;
1654 avatar.type = options.outMimeType;
1655 return avatar;
1656 } catch (NoSuchAlgorithmException | IOException e) {
1657 return null;
1658 } finally {
1659 close(is);
1660 }
1661 }
1662
1663 public boolean isAvatarCached(Avatar avatar) {
1664 final File file = getAvatarFile(avatar.getFilename());
1665 return file.exists();
1666 }
1667
1668 public boolean save(final Avatar avatar) {
1669 File file;
1670 if (isAvatarCached(avatar)) {
1671 file = getAvatarFile(avatar.getFilename());
1672 avatar.size = file.length();
1673 } else {
1674 file =
1675 new File(
1676 mXmppConnectionService.getCacheDir().getAbsolutePath()
1677 + "/"
1678 + UUID.randomUUID().toString());
1679 if (file.getParentFile().mkdirs()) {
1680 Log.d(Config.LOGTAG, "created cache directory");
1681 }
1682 OutputStream os = null;
1683 try {
1684 if (!file.createNewFile()) {
1685 Log.d(
1686 Config.LOGTAG,
1687 "unable to create temporary file " + file.getAbsolutePath());
1688 }
1689 os = new FileOutputStream(file);
1690 MessageDigest digest = MessageDigest.getInstance("SHA-1");
1691 digest.reset();
1692 DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
1693 final byte[] bytes = avatar.getImageAsBytes();
1694 mDigestOutputStream.write(bytes);
1695 mDigestOutputStream.flush();
1696 mDigestOutputStream.close();
1697 String sha1sum = CryptoHelper.bytesToHex(digest.digest());
1698 if (sha1sum.equals(avatar.sha1sum)) {
1699 final File outputFile = getAvatarFile(avatar.getFilename());
1700 if (outputFile.getParentFile().mkdirs()) {
1701 Log.d(Config.LOGTAG, "created avatar directory");
1702 }
1703 final File avatarFile = getAvatarFile(avatar.getFilename());
1704 if (!file.renameTo(avatarFile)) {
1705 Log.d(
1706 Config.LOGTAG,
1707 "unable to rename " + file.getAbsolutePath() + " to " + outputFile);
1708 return false;
1709 }
1710 } else {
1711 Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
1712 if (!file.delete()) {
1713 Log.d(Config.LOGTAG, "unable to delete temporary file");
1714 }
1715 return false;
1716 }
1717 avatar.size = bytes.length;
1718 } catch (IllegalArgumentException | IOException | NoSuchAlgorithmException e) {
1719 return false;
1720 } finally {
1721 close(os);
1722 }
1723 }
1724 return true;
1725 }
1726
1727 public void deleteHistoricAvatarPath() {
1728 delete(getHistoricAvatarPath());
1729 }
1730
1731 private void delete(final File file) {
1732 if (file.isDirectory()) {
1733 final File[] files = file.listFiles();
1734 if (files != null) {
1735 for (final File f : files) {
1736 delete(f);
1737 }
1738 }
1739 }
1740 if (file.delete()) {
1741 Log.d(Config.LOGTAG, "deleted " + file.getAbsolutePath());
1742 }
1743 }
1744
1745 private File getHistoricAvatarPath() {
1746 return new File(mXmppConnectionService.getFilesDir(), "/avatars/");
1747 }
1748
1749 public File getAvatarFile(String avatar) {
1750 return new File(mXmppConnectionService.getCacheDir(), "/avatars/" + avatar);
1751 }
1752
1753 public Uri getAvatarUri(String avatar) {
1754 return Uri.fromFile(getAvatarFile(avatar));
1755 }
1756
1757 public Drawable cropCenterSquareDrawable(Uri image, int size) {
1758 if (android.os.Build.VERSION.SDK_INT >= 28) {
1759 try {
1760 ImageDecoder.Source source = ImageDecoder.createSource(mXmppConnectionService.getContentResolver(), image);
1761 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
1762 int w = info.getSize().getWidth();
1763 int h = info.getSize().getHeight();
1764 Rect r = rectForSize(w, h, size);
1765 decoder.setTargetSize(r.width(), r.height());
1766
1767 int newSize = Math.min(r.width(), r.height());
1768 int left = (r.width() - newSize) / 2;
1769 int top = (r.height() - newSize) / 2;
1770 decoder.setCrop(new Rect(left, top, left + newSize, top + newSize));
1771 });
1772 } catch (final IOException e) {
1773 return getSVGSquare(image, size);
1774 }
1775 } else {
1776 Bitmap bitmap = cropCenterSquare(image, size);
1777 return bitmap == null ? null : new BitmapDrawable(bitmap);
1778 }
1779 }
1780
1781 public Bitmap cropCenterSquare(Uri image, int size) {
1782 if (image == null) {
1783 return null;
1784 }
1785 InputStream is = null;
1786 try {
1787 BitmapFactory.Options options = new BitmapFactory.Options();
1788 options.inSampleSize = calcSampleSize(image, size);
1789 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1790 if (is == null) {
1791 return null;
1792 }
1793 Bitmap input = BitmapFactory.decodeStream(is, null, options);
1794 if (input == null) {
1795 return null;
1796 } else {
1797 input = rotate(input, getRotation(image));
1798 return cropCenterSquare(input, size);
1799 }
1800 } catch (FileNotFoundException | SecurityException e) {
1801 Log.d(Config.LOGTAG, "unable to open file " + image.toString(), e);
1802 return null;
1803 } finally {
1804 close(is);
1805 }
1806 }
1807
1808 public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
1809 if (image == null) {
1810 return null;
1811 }
1812 InputStream is = null;
1813 try {
1814 BitmapFactory.Options options = new BitmapFactory.Options();
1815 options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
1816 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1817 if (is == null) {
1818 return null;
1819 }
1820 Bitmap source = BitmapFactory.decodeStream(is, null, options);
1821 if (source == null) {
1822 return null;
1823 }
1824 int sourceWidth = source.getWidth();
1825 int sourceHeight = source.getHeight();
1826 float xScale = (float) newWidth / sourceWidth;
1827 float yScale = (float) newHeight / sourceHeight;
1828 float scale = Math.max(xScale, yScale);
1829 float scaledWidth = scale * sourceWidth;
1830 float scaledHeight = scale * sourceHeight;
1831 float left = (newWidth - scaledWidth) / 2;
1832 float top = (newHeight - scaledHeight) / 2;
1833
1834 RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
1835 Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
1836 Canvas canvas = new Canvas(dest);
1837 canvas.drawBitmap(source, null, targetRect, createAntiAliasingPaint());
1838 if (source.isRecycled()) {
1839 source.recycle();
1840 }
1841 return dest;
1842 } catch (SecurityException e) {
1843 return null; // android 6.0 with revoked permissions for example
1844 } catch (FileNotFoundException e) {
1845 return null;
1846 } finally {
1847 close(is);
1848 }
1849 }
1850
1851 public Bitmap cropCenterSquare(Bitmap input, int size) {
1852 int w = input.getWidth();
1853 int h = input.getHeight();
1854
1855 float scale = Math.max((float) size / h, (float) size / w);
1856
1857 float outWidth = scale * w;
1858 float outHeight = scale * h;
1859 float left = (size - outWidth) / 2;
1860 float top = (size - outHeight) / 2;
1861 RectF target = new RectF(left, top, left + outWidth, top + outHeight);
1862
1863 Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1864 Canvas canvas = new Canvas(output);
1865 canvas.drawBitmap(input, null, target, createAntiAliasingPaint());
1866 if (!input.isRecycled()) {
1867 input.recycle();
1868 }
1869 return output;
1870 }
1871
1872 private int calcSampleSize(Uri image, int size)
1873 throws FileNotFoundException, SecurityException {
1874 final BitmapFactory.Options options = new BitmapFactory.Options();
1875 options.inJustDecodeBounds = true;
1876 final InputStream inputStream =
1877 mXmppConnectionService.getContentResolver().openInputStream(image);
1878 BitmapFactory.decodeStream(inputStream, null, options);
1879 close(inputStream);
1880 return calcSampleSize(options, size);
1881 }
1882
1883 public void updateFileParams(Message message) {
1884 updateFileParams(message, null);
1885 }
1886
1887 public void updateFileParams(final Message message, final String url) {
1888 updateFileParams(message, url, true);
1889 }
1890
1891 public void updateFileParams(final Message message, String url, boolean updateCids) {
1892 final boolean encrypted =
1893 message.getEncryption() == Message.ENCRYPTION_PGP
1894 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED;
1895 final DownloadableFile file = getFile(message);
1896 final String mime = file.getMimeType();
1897 final boolean privateMessage = message.isPrivateMessage();
1898 final boolean image =
1899 message.getType() == Message.TYPE_IMAGE
1900 || (mime != null && mime.startsWith("image/"));
1901 Message.FileParams fileParams = message.getFileParams();
1902 if (fileParams == null) fileParams = new Message.FileParams();
1903 Cid[] cids = new Cid[0];
1904 try {
1905 cids = calculateCids(new FileInputStream(file));
1906 fileParams.setCids(List.of(cids));
1907 } catch (final IOException | NoSuchAlgorithmException e) { }
1908 if (url == null) {
1909 for (Cid cid : cids) {
1910 url = mXmppConnectionService.getUrlForCid(cid);
1911 if (url != null) {
1912 fileParams.url = url;
1913 break;
1914 }
1915 }
1916 } else {
1917 fileParams.url = url;
1918 }
1919 if (fileParams.getName() == null) fileParams.setName(file.getName());
1920 fileParams.setMediaType(mime);
1921 if (encrypted && !file.exists()) {
1922 Log.d(Config.LOGTAG, "skipping updateFileParams because file is encrypted");
1923 final DownloadableFile encryptedFile = getFile(message, false);
1924 fileParams.size = encryptedFile.getSize();
1925 } else {
1926 Log.d(Config.LOGTAG, "running updateFileParams");
1927 final boolean ambiguous = MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime);
1928 final boolean video = mime != null && mime.startsWith("video/");
1929 final boolean audio = mime != null && mime.startsWith("audio/");
1930 final boolean pdf = "application/pdf".equals(mime);
1931 fileParams.size = file.getSize();
1932 if (ambiguous) {
1933 try {
1934 final Dimensions dimensions = getVideoDimensions(file);
1935 if (dimensions.valid()) {
1936 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is video");
1937 fileParams.width = dimensions.width;
1938 fileParams.height = dimensions.height;
1939 } else {
1940 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1941 fileParams.runtime = getMediaRuntime(file);
1942 }
1943 } catch (final IOException | NotAVideoFile e) {
1944 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1945 fileParams.runtime = getMediaRuntime(file);
1946 }
1947 } else if (image || video || pdf) {
1948 try {
1949 final Dimensions dimensions;
1950 if (video) {
1951 dimensions = getVideoDimensions(file);
1952 } else if (pdf) {
1953 dimensions = getPdfDocumentDimensions(file);
1954 } else if ("image/svg+xml".equals(mime)) {
1955 SVG svg = SVG.getFromInputStream(new FileInputStream(file));
1956 dimensions = new Dimensions((int) svg.getDocumentHeight(), (int) svg.getDocumentWidth());
1957 } else {
1958 dimensions = getImageDimensions(file);
1959 }
1960 if (dimensions.valid()) {
1961 fileParams.width = dimensions.width;
1962 fileParams.height = dimensions.height;
1963 }
1964 } catch (final IOException | SVGParseException | NotAVideoFile notAVideoFile) {
1965 Log.d(
1966 Config.LOGTAG,
1967 "file with mime type " + file.getMimeType() + " was not a video file");
1968 // fall threw
1969 }
1970 } else if (audio) {
1971 fileParams.runtime = getMediaRuntime(file);
1972 }
1973 try {
1974 Bitmap thumb = getThumbnailBitmap(file, mXmppConnectionService.getResources(), 100, file.getAbsolutePath() + " x 100");
1975 if (thumb != null) {
1976 int[] pixels = new int[thumb.getWidth() * thumb.getHeight()];
1977 byte[] rgba = new byte[pixels.length * 4];
1978 try {
1979 thumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1980 } catch (final IllegalStateException e) {
1981 Bitmap softThumb = thumb.copy(Bitmap.Config.ARGB_8888, false);
1982 softThumb.getPixels(pixels, 0, thumb.getWidth(), 0, 0, thumb.getWidth(), thumb.getHeight());
1983 softThumb.recycle();
1984 }
1985 for (int i = 0; i < pixels.length; i++) {
1986 rgba[i*4] = (byte)((pixels[i] >> 16) & 0xff);
1987 rgba[(i*4)+1] = (byte)((pixels[i] >> 8) & 0xff);
1988 rgba[(i*4)+2] = (byte)(pixels[i] & 0xff);
1989 rgba[(i*4)+3] = (byte)((pixels[i] >> 24) & 0xff);
1990 }
1991 fileParams.addThumbnail(thumb.getWidth(), thumb.getHeight(), "image/thumbhash", "data:image/thumbhash;base64," + Base64.encodeToString(ThumbHash.rgbaToThumbHash(thumb.getWidth(), thumb.getHeight(), rgba), Base64.NO_WRAP));
1992 }
1993 } catch (final IOException e) { }
1994 }
1995 message.setFileParams(fileParams);
1996 message.setDeleted(false);
1997 message.setType(
1998 privateMessage
1999 ? Message.TYPE_PRIVATE_FILE
2000 : (image ? Message.TYPE_IMAGE : Message.TYPE_FILE));
2001
2002 if (updateCids) {
2003 try {
2004 for (int i = 0; i < cids.length; i++) {
2005 mXmppConnectionService.saveCid(cids[i], file);
2006 }
2007 } catch (XmppConnectionService.BlockedMediaException e) { }
2008 }
2009 }
2010
2011 private int getMediaRuntime(final File file) {
2012 try {
2013 final MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
2014 mediaMetadataRetriever.setDataSource(file.toString());
2015 final String value =
2016 mediaMetadataRetriever.extractMetadata(
2017 MediaMetadataRetriever.METADATA_KEY_DURATION);
2018 if (Strings.isNullOrEmpty(value)) {
2019 return 0;
2020 }
2021 return Integer.parseInt(value);
2022 } catch (final Exception e) {
2023 return 0;
2024 }
2025 }
2026
2027 private Dimensions getImageDimensions(File file) {
2028 final BitmapFactory.Options options = new BitmapFactory.Options();
2029 options.inJustDecodeBounds = true;
2030 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
2031 final int rotation = getRotation(file);
2032 final boolean rotated = rotation == 90 || rotation == 270;
2033 final int imageHeight = rotated ? options.outWidth : options.outHeight;
2034 final int imageWidth = rotated ? options.outHeight : options.outWidth;
2035 return new Dimensions(imageHeight, imageWidth);
2036 }
2037
2038 private Dimensions getVideoDimensions(final File file) throws NotAVideoFile, IOException {
2039 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
2040 try {
2041 metadataRetriever.setDataSource(file.getAbsolutePath());
2042 } catch (RuntimeException e) {
2043 throw new NotAVideoFile(e);
2044 }
2045 return getVideoDimensions(metadataRetriever);
2046 }
2047
2048 private Dimensions getPdfDocumentDimensions(final File file) {
2049 final ParcelFileDescriptor fileDescriptor;
2050 try {
2051 fileDescriptor = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
2052 if (fileDescriptor == null) {
2053 return new Dimensions(0, 0);
2054 }
2055 } catch (final FileNotFoundException e) {
2056 return new Dimensions(0, 0);
2057 }
2058 try {
2059 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
2060 final PdfRenderer.Page page = pdfRenderer.openPage(0);
2061 final int height = page.getHeight();
2062 final int width = page.getWidth();
2063 page.close();
2064 pdfRenderer.close();
2065 return scalePdfDimensions(new Dimensions(height, width));
2066 } catch (final IOException | SecurityException e) {
2067 Log.d(Config.LOGTAG, "unable to get dimensions for pdf document", e);
2068 return new Dimensions(0, 0);
2069 }
2070 }
2071
2072 private Dimensions scalePdfDimensions(Dimensions in) {
2073 final DisplayMetrics displayMetrics =
2074 mXmppConnectionService.getResources().getDisplayMetrics();
2075 final int target = (int) (displayMetrics.density * 288);
2076 return scalePdfDimensions(in, target, true);
2077 }
2078
2079 private static Dimensions scalePdfDimensions(
2080 final Dimensions in, final int target, final boolean fit) {
2081 final int w, h;
2082 if (fit == (in.width <= in.height)) {
2083 w = Math.max((int) (in.width / ((double) in.height / target)), 1);
2084 h = target;
2085 } else {
2086 w = target;
2087 h = Math.max((int) (in.height / ((double) in.width / target)), 1);
2088 }
2089 return new Dimensions(h, w);
2090 }
2091
2092 public Drawable getAvatar(String avatar, int size) {
2093 if (avatar == null) {
2094 return null;
2095 }
2096
2097 if (android.os.Build.VERSION.SDK_INT >= 28) {
2098 try {
2099 ImageDecoder.Source source = ImageDecoder.createSource(getAvatarFile(avatar));
2100 return ImageDecoder.decodeDrawable(source, (decoder, info, src) -> {
2101 int w = info.getSize().getWidth();
2102 int h = info.getSize().getHeight();
2103 Rect r = rectForSize(w, h, size);
2104 decoder.setTargetSize(r.width(), r.height());
2105
2106 int newSize = Math.min(r.width(), r.height());
2107 int left = (r.width() - newSize) / 2;
2108 int top = (r.height() - newSize) / 2;
2109 decoder.setCrop(new Rect(left, top, left + newSize, top + newSize));
2110 });
2111 } catch (final IOException e) {
2112 return getSVGSquare(getAvatarUri(avatar), size);
2113 }
2114 } else {
2115 Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
2116 return bm == null ? null : new BitmapDrawable(bm);
2117 }
2118 }
2119
2120 public Drawable getSVGSquare(Uri uri, int size) {
2121 try {
2122 SVG svg = SVG.getFromInputStream(mXmppConnectionService.getContentResolver().openInputStream(uri));
2123 svg.setDocumentPreserveAspectRatio(com.caverock.androidsvg.PreserveAspectRatio.FULLSCREEN);
2124 svg.setDocumentWidth("100%");
2125 svg.setDocumentHeight("100%");
2126
2127 float w = svg.getDocumentWidth();
2128 float h = svg.getDocumentHeight();
2129 float scale = Math.max((float) size / h, (float) size / w);
2130 float outWidth = scale * w;
2131 float outHeight = scale * h;
2132 float left = (size - outWidth) / 2;
2133 float top = (size - outHeight) / 2;
2134 RectF target = new RectF(left, top, left + outWidth, top + outHeight);
2135
2136 Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
2137 Canvas canvas = new Canvas(output);
2138 svg.renderToCanvas(canvas, target);
2139
2140 return new SVGDrawable(output);
2141 } catch (final IOException | SVGParseException e) {
2142 return null;
2143 }
2144 }
2145
2146 public Drawable getSVG(File file, int size) {
2147 try {
2148 SVG svg = SVG.getFromInputStream(new FileInputStream(file));
2149 svg.setDocumentPreserveAspectRatio(com.caverock.androidsvg.PreserveAspectRatio.TOP);
2150
2151 float w = svg.getDocumentWidth();
2152 float h = svg.getDocumentHeight();
2153 Rect r = rectForSize((int) w, (int) h, size);
2154 svg.setDocumentWidth("100%");
2155 svg.setDocumentHeight("100%");
2156
2157 Bitmap output = Bitmap.createBitmap(r.width(), r.height(), Bitmap.Config.ARGB_8888);
2158 Canvas canvas = new Canvas(output);
2159 svg.renderToCanvas(canvas);
2160
2161 return new SVGDrawable(output);
2162 } catch (final IOException | SVGParseException e) {
2163 return null;
2164 }
2165 }
2166
2167 private static class Dimensions {
2168 public final int width;
2169 public final int height;
2170
2171 Dimensions(int height, int width) {
2172 this.width = width;
2173 this.height = height;
2174 }
2175
2176 public int getMin() {
2177 return Math.min(width, height);
2178 }
2179
2180 public boolean valid() {
2181 return width > 0 && height > 0;
2182 }
2183 }
2184
2185 private static class NotAVideoFile extends Exception {
2186 public NotAVideoFile(Throwable t) {
2187 super(t);
2188 }
2189
2190 public NotAVideoFile() {
2191 super();
2192 }
2193 }
2194
2195 public static class ImageCompressionException extends Exception {
2196
2197 ImageCompressionException(String message) {
2198 super(message);
2199 }
2200 }
2201
2202 public static class FileCopyException extends Exception {
2203 private final int resId;
2204
2205 private FileCopyException(@StringRes int resId) {
2206 this.resId = resId;
2207 }
2208
2209 public @StringRes int getResId() {
2210 return resId;
2211 }
2212 }
2213
2214 public static class SVGDrawable extends BitmapDrawable {
2215 public SVGDrawable(Bitmap bm) { super(bm); }
2216 }
2217}