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