1package eu.siacs.conversations.persistance;
2
3import android.content.ContentResolver;
4import android.content.Context;
5import android.database.Cursor;
6import android.graphics.Bitmap;
7import android.graphics.BitmapFactory;
8import android.graphics.Canvas;
9import android.graphics.Color;
10import android.graphics.Matrix;
11import android.graphics.Paint;
12import android.graphics.RectF;
13import android.graphics.pdf.PdfRenderer;
14import android.media.MediaMetadataRetriever;
15import android.media.MediaScannerConnection;
16import android.net.Uri;
17import android.os.Build;
18import android.os.Environment;
19import android.os.ParcelFileDescriptor;
20import android.provider.MediaStore;
21import android.provider.OpenableColumns;
22import android.system.Os;
23import android.system.StructStat;
24import android.util.DisplayMetrics;
25import android.util.Log;
26import android.util.LruCache;
27import androidx.annotation.RequiresApi;
28import androidx.annotation.StringRes;
29import androidx.core.content.FileProvider;
30import androidx.exifinterface.media.ExifInterface;
31import com.google.common.base.Strings;
32import com.google.common.collect.ImmutableList;
33import com.google.common.io.ByteStreams;
34import eu.siacs.conversations.Config;
35import eu.siacs.conversations.R;
36import eu.siacs.conversations.entities.DownloadableFile;
37import eu.siacs.conversations.entities.Message;
38import eu.siacs.conversations.services.AttachFileToConversationRunnable;
39import eu.siacs.conversations.services.XmppConnectionService;
40import eu.siacs.conversations.ui.adapter.MediaAdapter;
41import eu.siacs.conversations.ui.util.Attachment;
42import eu.siacs.conversations.utils.FileUtils;
43import eu.siacs.conversations.utils.FileWriterException;
44import eu.siacs.conversations.utils.MimeUtils;
45import java.io.Closeable;
46import java.io.File;
47import java.io.FileDescriptor;
48import java.io.FileInputStream;
49import java.io.FileNotFoundException;
50import java.io.FileOutputStream;
51import java.io.IOException;
52import java.io.InputStream;
53import java.io.OutputStream;
54import java.net.ServerSocket;
55import java.net.Socket;
56import java.text.SimpleDateFormat;
57import java.util.ArrayList;
58import java.util.Date;
59import java.util.List;
60import java.util.Locale;
61
62public class FileBackend {
63
64 private static final Object THUMBNAIL_LOCK = new Object();
65
66 private static final SimpleDateFormat IMAGE_DATE_FORMAT =
67 new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.US);
68
69 private static final String FILE_PROVIDER = ".files";
70 private static final float IGNORE_PADDING = 0.15f;
71 private final XmppConnectionService mXmppConnectionService;
72
73 private static final List<String> STORAGE_TYPES;
74
75 static {
76 final ImmutableList.Builder<String> builder =
77 new ImmutableList.Builder<String>()
78 .add(
79 Environment.DIRECTORY_DOWNLOADS,
80 Environment.DIRECTORY_PICTURES,
81 Environment.DIRECTORY_MOVIES,
82 Environment.DIRECTORY_DOCUMENTS);
83 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
84 builder.add(Environment.DIRECTORY_RECORDINGS);
85 }
86 STORAGE_TYPES = builder.build();
87 }
88
89 public FileBackend(XmppConnectionService service) {
90 this.mXmppConnectionService = service;
91 }
92
93 public static long getFileSize(Context context, Uri uri) {
94 try (final Cursor cursor =
95 context.getContentResolver().query(uri, null, null, null, null)) {
96 if (cursor != null && cursor.moveToFirst()) {
97 final int index = cursor.getColumnIndex(OpenableColumns.SIZE);
98 if (index == -1) {
99 return -1;
100 }
101 return cursor.getLong(index);
102 }
103 return -1;
104 } catch (final Exception ignored) {
105 return -1;
106 }
107 }
108
109 public static boolean allFilesUnderSize(
110 Context context, List<Attachment> attachments, long max) {
111 final boolean compressVideo =
112 !AttachFileToConversationRunnable.getVideoCompression(context)
113 .equals("uncompressed");
114 if (max <= 0) {
115 Log.d(Config.LOGTAG, "server did not report max file size for http upload");
116 return true; // exception to be compatible with HTTP Upload < v0.2
117 }
118 for (Attachment attachment : attachments) {
119 if (attachment.getType() != Attachment.Type.FILE) {
120 continue;
121 }
122 String mime = attachment.getMime();
123 if (mime != null && mime.startsWith("video/") && compressVideo) {
124 try {
125 Dimensions dimensions =
126 FileBackend.getVideoDimensions(context, attachment.getUri());
127 if (dimensions.getMin() > 720) {
128 Log.d(
129 Config.LOGTAG,
130 "do not consider video file with min width larger than 720 for size"
131 + " check");
132 continue;
133 }
134 } catch (final IOException | NotAVideoFile e) {
135 // ignore and fall through
136 }
137 }
138 if (FileBackend.getFileSize(context, attachment.getUri()) > max) {
139 Log.d(
140 Config.LOGTAG,
141 "not all files are under "
142 + max
143 + " bytes. suggesting falling back to jingle");
144 return false;
145 }
146 }
147 return true;
148 }
149
150 public static File getBackupDirectory(final Context context) {
151 final File conversationsDownloadDirectory =
152 new File(
153 Environment.getExternalStoragePublicDirectory(
154 Environment.DIRECTORY_DOWNLOADS),
155 context.getString(R.string.app_name));
156 return new File(conversationsDownloadDirectory, "Backup");
157 }
158
159 public static File getLegacyBackupDirectory(final String app) {
160 final File appDirectory = new File(Environment.getExternalStorageDirectory(), app);
161 return new File(appDirectory, "Backup");
162 }
163
164 private static Bitmap rotate(final Bitmap bitmap, final int degree) {
165 if (degree == 0) {
166 return bitmap;
167 }
168 final int w = bitmap.getWidth();
169 final int h = bitmap.getHeight();
170 final Matrix matrix = new Matrix();
171 matrix.postRotate(degree);
172 final Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
173 if (!bitmap.isRecycled()) {
174 bitmap.recycle();
175 }
176 return result;
177 }
178
179 public static boolean isPathBlacklisted(String path) {
180 final String androidDataPath =
181 Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/";
182 return path.startsWith(androidDataPath);
183 }
184
185 private static Paint createAntiAliasingPaint() {
186 Paint paint = new Paint();
187 paint.setAntiAlias(true);
188 paint.setFilterBitmap(true);
189 paint.setDither(true);
190 return paint;
191 }
192
193 public static Uri getUriForUri(Context context, Uri uri) {
194 if ("file".equals(uri.getScheme())) {
195 return getUriForFile(context, new File(uri.getPath()));
196 } else {
197 return uri;
198 }
199 }
200
201 public static Uri getUriForFile(Context context, File file) {
202 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N || Config.ONLY_INTERNAL_STORAGE) {
203 try {
204 return FileProvider.getUriForFile(context, getAuthority(context), file);
205 } catch (IllegalArgumentException e) {
206 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
207 throw new SecurityException(e);
208 } else {
209 return Uri.fromFile(file);
210 }
211 }
212 } else {
213 return Uri.fromFile(file);
214 }
215 }
216
217 public static String getAuthority(Context context) {
218 return context.getPackageName() + FILE_PROVIDER;
219 }
220
221 public static boolean hasAlpha(final Bitmap bitmap) {
222 final int w = bitmap.getWidth();
223 final int h = bitmap.getHeight();
224 final int yStep = Math.max(1, w / 100);
225 final int xStep = Math.max(1, h / 100);
226 for (int x = 0; x < w; x += xStep) {
227 for (int y = 0; y < h; y += yStep) {
228 if (Color.alpha(bitmap.getPixel(x, y)) < 255) {
229 return true;
230 }
231 }
232 }
233 return false;
234 }
235
236 private static int calcSampleSize(File image, int size) {
237 BitmapFactory.Options options = new BitmapFactory.Options();
238 options.inJustDecodeBounds = true;
239 BitmapFactory.decodeFile(image.getAbsolutePath(), options);
240 return calcSampleSize(options, size);
241 }
242
243 private static int calcSampleSize(BitmapFactory.Options options, int size) {
244 int height = options.outHeight;
245 int width = options.outWidth;
246 int inSampleSize = 1;
247
248 if (height > size || width > size) {
249 int halfHeight = height / 2;
250 int halfWidth = width / 2;
251
252 while ((halfHeight / inSampleSize) > size && (halfWidth / inSampleSize) > size) {
253 inSampleSize *= 2;
254 }
255 }
256 return inSampleSize;
257 }
258
259 private static Dimensions getVideoDimensions(Context context, Uri uri)
260 throws NotAVideoFile, IOException {
261 MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
262 try {
263 mediaMetadataRetriever.setDataSource(context, uri);
264 } catch (RuntimeException e) {
265 throw new NotAVideoFile(e);
266 }
267 return getVideoDimensions(mediaMetadataRetriever);
268 }
269
270 private static Dimensions getVideoDimensionsOfFrame(
271 MediaMetadataRetriever mediaMetadataRetriever) {
272 Bitmap bitmap = null;
273 try {
274 bitmap = mediaMetadataRetriever.getFrameAtTime();
275 return new Dimensions(bitmap.getHeight(), bitmap.getWidth());
276 } catch (Exception e) {
277 return null;
278 } finally {
279 if (bitmap != null) {
280 bitmap.recycle();
281 }
282 }
283 }
284
285 private static Dimensions getVideoDimensions(MediaMetadataRetriever metadataRetriever)
286 throws NotAVideoFile, IOException {
287 String hasVideo =
288 metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
289 if (hasVideo == null) {
290 throw new NotAVideoFile();
291 }
292 Dimensions dimensions = getVideoDimensionsOfFrame(metadataRetriever);
293 if (dimensions != null) {
294 return dimensions;
295 }
296 final int rotation = extractRotationFromMediaRetriever(metadataRetriever);
297 boolean rotated = rotation == 90 || rotation == 270;
298 int height;
299 try {
300 String h =
301 metadataRetriever.extractMetadata(
302 MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
303 height = Integer.parseInt(h);
304 } catch (Exception e) {
305 height = -1;
306 }
307 int width;
308 try {
309 String w =
310 metadataRetriever.extractMetadata(
311 MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
312 width = Integer.parseInt(w);
313 } catch (Exception e) {
314 width = -1;
315 }
316 metadataRetriever.release();
317 Log.d(Config.LOGTAG, "extracted video dims " + width + "x" + height);
318 return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
319 }
320
321 private static int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
322 String r =
323 metadataRetriever.extractMetadata(
324 MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
325 try {
326 return Integer.parseInt(r);
327 } catch (Exception e) {
328 return 0;
329 }
330 }
331
332 public static void close(final Closeable stream) {
333 if (stream != null) {
334 try {
335 stream.close();
336 } catch (Exception e) {
337 Log.d(Config.LOGTAG, "unable to close stream", e);
338 }
339 }
340 }
341
342 public static void close(final Socket socket) {
343 if (socket != null) {
344 try {
345 socket.close();
346 } catch (IOException e) {
347 Log.d(Config.LOGTAG, "unable to close socket", e);
348 }
349 }
350 }
351
352 public static void close(final ServerSocket socket) {
353 if (socket != null) {
354 try {
355 socket.close();
356 } catch (IOException e) {
357 Log.d(Config.LOGTAG, "unable to close server socket", e);
358 }
359 }
360 }
361
362 public static boolean dangerousFile(final Uri uri) {
363 if (uri == null || Strings.isNullOrEmpty(uri.getScheme())) {
364 return true;
365 }
366 if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
367 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
368 // On Android 7 (and apps that target 7) it is now longer possible to share files
369 // with a file scheme. By now you should probably not be running apps that target
370 // anything less than 7 any more
371 return true;
372 } else {
373 return isFileOwnedByProcess(uri);
374 }
375 }
376 return false;
377 }
378
379 private static boolean isFileOwnedByProcess(final Uri uri) {
380 final String path = uri.getPath();
381 if (path == null) {
382 return true;
383 }
384 try (final var pfd =
385 ParcelFileDescriptor.open(new File(path), ParcelFileDescriptor.MODE_READ_ONLY)) {
386 final FileDescriptor fd = pfd.getFileDescriptor();
387 final StructStat st = Os.fstat(fd);
388 return st.st_uid == android.os.Process.myUid();
389 } catch (final Exception e) {
390 // when in doubt. better safe than sorry
391 return true;
392 }
393 }
394
395 public static Uri getMediaUri(Context context, File file) {
396 final String filePath = file.getAbsolutePath();
397 try (final Cursor cursor =
398 context.getContentResolver()
399 .query(
400 MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
401 new String[] {MediaStore.Images.Media._ID},
402 MediaStore.Images.Media.DATA + "=? ",
403 new String[] {filePath},
404 null)) {
405 if (cursor != null && cursor.moveToFirst()) {
406 final int id =
407 cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns._ID));
408 return Uri.withAppendedPath(
409 MediaStore.Images.Media.EXTERNAL_CONTENT_URI, String.valueOf(id));
410 } else {
411 return null;
412 }
413 } catch (final Exception e) {
414 return null;
415 }
416 }
417
418 public static void updateFileParams(Message message, String url, long size) {
419 message.setBody(url + '|' + size);
420 }
421
422 public Bitmap getPreviewForUri(Attachment attachment, int size, boolean cacheOnly) {
423 final String key = "attachment_" + attachment.getUuid().toString() + "_" + size;
424 final LruCache<String, Bitmap> cache = mXmppConnectionService.getBitmapCache();
425 Bitmap bitmap = cache.get(key);
426 if (bitmap != null || cacheOnly) {
427 return bitmap;
428 }
429 final String mime = attachment.getMime();
430 if ("application/pdf".equals(mime)) {
431 bitmap = cropCenterSquarePdf(attachment.getUri(), size);
432 drawOverlay(
433 bitmap,
434 paintOverlayBlackPdf(bitmap)
435 ? R.drawable.open_pdf_black
436 : R.drawable.open_pdf_white,
437 0.75f);
438 } else if (mime != null && mime.startsWith("video/")) {
439 bitmap = cropCenterSquareVideo(attachment.getUri(), size);
440 drawOverlay(
441 bitmap,
442 paintOverlayBlack(bitmap)
443 ? R.drawable.play_video_black
444 : R.drawable.play_video_white,
445 0.75f);
446 } else {
447 bitmap = cropCenterSquare(attachment.getUri(), size);
448 if (bitmap != null && "image/gif".equals(mime)) {
449 Bitmap withGifOverlay = bitmap.copy(Bitmap.Config.ARGB_8888, true);
450 drawOverlay(
451 withGifOverlay,
452 paintOverlayBlack(withGifOverlay)
453 ? R.drawable.play_gif_black
454 : R.drawable.play_gif_white,
455 1.0f);
456 bitmap.recycle();
457 bitmap = withGifOverlay;
458 }
459 }
460 if (bitmap != null) {
461 cache.put(key, bitmap);
462 }
463 return bitmap;
464 }
465
466 public void updateMediaScanner(File file) {
467 updateMediaScanner(file, null);
468 }
469
470 public void updateMediaScanner(File file, final Runnable callback) {
471 MediaScannerConnection.scanFile(
472 mXmppConnectionService,
473 new String[] {file.getAbsolutePath()},
474 null,
475 new MediaScannerConnection.MediaScannerConnectionClient() {
476 @Override
477 public void onMediaScannerConnected() {}
478
479 @Override
480 public void onScanCompleted(String path, Uri uri) {
481 if (callback != null && file.getAbsolutePath().equals(path)) {
482 callback.run();
483 } else {
484 Log.d(Config.LOGTAG, "media scanner scanned wrong file");
485 if (callback != null) {
486 callback.run();
487 }
488 }
489 }
490 });
491 }
492
493 public boolean deleteFile(Message message) {
494 File file = getFile(message);
495 if (file.delete()) {
496 updateMediaScanner(file);
497 return true;
498 } else {
499 return false;
500 }
501 }
502
503 public DownloadableFile getFile(Message message) {
504 return getFile(message, true);
505 }
506
507 public DownloadableFile getFileForPath(String path) {
508 return getFileForPath(
509 path,
510 MimeUtils.guessMimeTypeFromExtension(MimeUtils.extractRelevantExtension(path)));
511 }
512
513 private DownloadableFile getFileForPath(final String path, final String mime) {
514 if (path.startsWith("/")) {
515 return new DownloadableFile(path);
516 } else {
517 return getLegacyFileForFilename(path, mime);
518 }
519 }
520
521 public DownloadableFile getLegacyFileForFilename(final String filename, final String mime) {
522 if (Strings.isNullOrEmpty(mime)) {
523 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
524 } else if (mime.startsWith("image/")) {
525 return new DownloadableFile(getLegacyStorageLocation("Images"), filename);
526 } else if (mime.startsWith("video/")) {
527 return new DownloadableFile(getLegacyStorageLocation("Videos"), filename);
528 } else {
529 return new DownloadableFile(getLegacyStorageLocation("Files"), filename);
530 }
531 }
532
533 public boolean isInternalFile(final File file) {
534 final File internalFile = getFileForPath(file.getName());
535 return file.getAbsolutePath().equals(internalFile.getAbsolutePath());
536 }
537
538 public DownloadableFile getFile(Message message, boolean decrypted) {
539 final boolean encrypted =
540 !decrypted
541 && (message.getEncryption() == Message.ENCRYPTION_PGP
542 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
543 String path = message.getRelativeFilePath();
544 if (path == null) {
545 path = message.getUuid();
546 }
547 final DownloadableFile file = getFileForPath(path, message.getMimeType());
548 if (encrypted) {
549 return new DownloadableFile(
550 mXmppConnectionService.getCacheDir(),
551 String.format("%s.%s", file.getName(), "pgp"));
552 } else {
553 return file;
554 }
555 }
556
557 public List<Attachment> convertToAttachments(List<DatabaseBackend.FilePath> relativeFilePaths) {
558 final List<Attachment> attachments = new ArrayList<>();
559 for (final DatabaseBackend.FilePath relativeFilePath : relativeFilePaths) {
560 final String mime =
561 MimeUtils.guessMimeTypeFromExtension(
562 MimeUtils.extractRelevantExtension(relativeFilePath.path));
563 final File file = getFileForPath(relativeFilePath.path, mime);
564 attachments.add(Attachment.of(relativeFilePath.uuid, file, mime));
565 }
566 return attachments;
567 }
568
569 private File getLegacyStorageLocation(final String type) {
570 if (Config.ONLY_INTERNAL_STORAGE) {
571 return new File(mXmppConnectionService.getFilesDir(), type);
572 } else {
573 final File appDirectory =
574 new File(
575 Environment.getExternalStorageDirectory(),
576 mXmppConnectionService.getString(R.string.app_name));
577 final File appMediaDirectory = new File(appDirectory, "Media");
578 final String locationName =
579 String.format(
580 "%s %s", mXmppConnectionService.getString(R.string.app_name), type);
581 return new File(appMediaDirectory, locationName);
582 }
583 }
584
585 private Bitmap resize(final Bitmap originalBitmap, int size) throws IOException {
586 int w = originalBitmap.getWidth();
587 int h = originalBitmap.getHeight();
588 if (w <= 0 || h <= 0) {
589 throw new IOException("Decoded bitmap reported bounds smaller 0");
590 } else if (Math.max(w, h) > size) {
591 int scalledW;
592 int scalledH;
593 if (w <= h) {
594 scalledW = Math.max((int) (w / ((double) h / size)), 1);
595 scalledH = size;
596 } else {
597 scalledW = size;
598 scalledH = Math.max((int) (h / ((double) w / size)), 1);
599 }
600 final Bitmap result =
601 Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
602 if (!originalBitmap.isRecycled()) {
603 originalBitmap.recycle();
604 }
605 return result;
606 } else {
607 return originalBitmap;
608 }
609 }
610
611 public boolean useImageAsIs(final Uri uri) {
612 final String path = getOriginalPath(uri);
613 if (path == null || isPathBlacklisted(path)) {
614 return false;
615 }
616 final File file = new File(path);
617 long size = file.length();
618 if (size == 0
619 || size
620 >= mXmppConnectionService
621 .getResources()
622 .getInteger(R.integer.auto_accept_filesize)) {
623 return false;
624 }
625 BitmapFactory.Options options = new BitmapFactory.Options();
626 options.inJustDecodeBounds = true;
627 try {
628 final InputStream inputStream =
629 mXmppConnectionService.getContentResolver().openInputStream(uri);
630 BitmapFactory.decodeStream(inputStream, null, options);
631 close(inputStream);
632 if (options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
633 return false;
634 }
635 return (options.outWidth <= Config.IMAGE_SIZE
636 && options.outHeight <= Config.IMAGE_SIZE
637 && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
638 } catch (FileNotFoundException e) {
639 Log.d(Config.LOGTAG, "unable to get image dimensions", e);
640 return false;
641 }
642 }
643
644 public String getOriginalPath(final Uri uri) {
645 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
646 // On Android 11+ we don’t have access to the original file
647 return null;
648 } else {
649 return FileUtils.getPath(mXmppConnectionService, uri);
650 }
651 }
652
653 private void copyFileToPrivateStorage(final File file, final Uri uri) throws FileCopyException {
654 final var parentDirectory = file.getParentFile();
655 if (parentDirectory != null && parentDirectory.mkdirs()) {
656 Log.d(Config.LOGTAG, "created directory " + parentDirectory.getAbsolutePath());
657 }
658 try {
659 if (file.createNewFile()) {
660 Log.d(Config.LOGTAG, "created empty file " + file.getAbsolutePath());
661 }
662 } catch (final IOException e) {
663 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
664 }
665 try (final OutputStream os = new FileOutputStream(file);
666 final InputStream is =
667 mXmppConnectionService.getContentResolver().openInputStream(uri)) {
668 if (is == null) {
669 throw new FileCopyException(R.string.error_file_not_found);
670 }
671 try {
672 ByteStreams.copy(is, os);
673 } catch (final IOException e) {
674 throw new FileWriterException(file);
675 }
676 try {
677 os.flush();
678 } catch (final IOException e) {
679 throw new FileWriterException(file);
680 }
681 } catch (final FileNotFoundException e) {
682 cleanup(file);
683 throw new FileCopyException(R.string.error_file_not_found);
684 } catch (final FileWriterException e) {
685 cleanup(file);
686 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
687 } catch (final SecurityException | IllegalStateException | IllegalArgumentException e) {
688 cleanup(file);
689 throw new FileCopyException(R.string.error_security_exception);
690 } catch (final IOException e) {
691 cleanup(file);
692 throw new FileCopyException(R.string.error_io_exception);
693 }
694 }
695
696 public void copyFileToPrivateStorage(final Message message, final Uri uri, final String type)
697 throws FileCopyException {
698 final String mime =
699 MimeUtils.guessMimeTypeFromUriAndMime(mXmppConnectionService, uri, type);
700 Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime=" + mime + ")");
701 String extension = MimeUtils.guessExtensionFromMimeType(mime);
702 if (extension == null) {
703 Log.d(Config.LOGTAG, "extension from mime type was null");
704 extension = getExtensionFromUri(uri);
705 }
706 if ("ogg".equals(extension) && type != null && type.startsWith("audio/")) {
707 extension = "oga";
708 }
709 setupRelativeFilePath(message, String.format("%s.%s", message.getUuid(), extension));
710 copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
711 }
712
713 private String getExtensionFromUri(final Uri uri) {
714 final String[] projection = {MediaStore.MediaColumns.DATA};
715 String filename = null;
716 try (final Cursor cursor =
717 mXmppConnectionService
718 .getContentResolver()
719 .query(uri, projection, null, null, null)) {
720 if (cursor != null && cursor.moveToFirst()) {
721 filename = cursor.getString(0);
722 }
723 } catch (final Exception e) {
724 filename = null;
725 }
726 if (filename == null) {
727 final List<String> segments = uri.getPathSegments();
728 if (segments.size() > 0) {
729 filename = segments.get(segments.size() - 1);
730 }
731 }
732 final int pos = filename == null ? -1 : filename.lastIndexOf('.');
733 return pos > 0 ? filename.substring(pos + 1) : null;
734 }
735
736 private void copyImageToPrivateStorage(File file, Uri image, int sampleSize)
737 throws FileCopyException, ImageCompressionException {
738 final File parent = file.getParentFile();
739 if (parent != null && parent.mkdirs()) {
740 Log.d(Config.LOGTAG, "created parent directory");
741 }
742 InputStream is = null;
743 OutputStream os = null;
744 try {
745 if (!file.exists() && !file.createNewFile()) {
746 throw new FileCopyException(R.string.error_unable_to_create_temporary_file);
747 }
748 is = mXmppConnectionService.getContentResolver().openInputStream(image);
749 if (is == null) {
750 throw new FileCopyException(R.string.error_not_an_image_file);
751 }
752 final Bitmap originalBitmap;
753 final BitmapFactory.Options options = new BitmapFactory.Options();
754 final int inSampleSize = (int) Math.pow(2, sampleSize);
755 Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
756 options.inSampleSize = inSampleSize;
757 originalBitmap = BitmapFactory.decodeStream(is, null, options);
758 is.close();
759 if (originalBitmap == null) {
760 throw new ImageCompressionException("Source file was not an image");
761 }
762 if (!"image/jpeg".equals(options.outMimeType) && hasAlpha(originalBitmap)) {
763 originalBitmap.recycle();
764 throw new ImageCompressionException("Source file had alpha channel");
765 }
766 Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
767 final int rotation = getRotation(mXmppConnectionService, image);
768 scaledBitmap = rotate(scaledBitmap, rotation);
769 boolean targetSizeReached = false;
770 int quality = Config.IMAGE_QUALITY;
771 final int imageMaxSize =
772 mXmppConnectionService
773 .getResources()
774 .getInteger(R.integer.auto_accept_filesize);
775 while (!targetSizeReached) {
776 os = new FileOutputStream(file);
777 Log.d(Config.LOGTAG, "compressing image with quality " + quality);
778 boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
779 if (!success) {
780 throw new FileCopyException(R.string.error_compressing_image);
781 }
782 os.flush();
783 final long fileSize = file.length();
784 Log.d(Config.LOGTAG, "achieved file size of " + fileSize);
785 targetSizeReached = fileSize <= imageMaxSize || quality <= 50;
786 quality -= 5;
787 }
788 scaledBitmap.recycle();
789 } catch (final FileNotFoundException e) {
790 cleanup(file);
791 throw new FileCopyException(R.string.error_file_not_found);
792 } catch (final IOException e) {
793 cleanup(file);
794 throw new FileCopyException(R.string.error_io_exception);
795 } catch (SecurityException e) {
796 cleanup(file);
797 throw new FileCopyException(R.string.error_security_exception_during_image_copy);
798 } catch (final OutOfMemoryError e) {
799 ++sampleSize;
800 if (sampleSize <= 3) {
801 copyImageToPrivateStorage(file, image, sampleSize);
802 } else {
803 throw new FileCopyException(R.string.error_out_of_memory);
804 }
805 } finally {
806 close(os);
807 close(is);
808 }
809 }
810
811 private static void cleanup(final File file) {
812 try {
813 file.delete();
814 } catch (Exception e) {
815
816 }
817 }
818
819 public void copyImageToPrivateStorage(File file, Uri image)
820 throws FileCopyException, ImageCompressionException {
821 Log.d(
822 Config.LOGTAG,
823 "copy image ("
824 + image.toString()
825 + ") to private storage "
826 + file.getAbsolutePath());
827 copyImageToPrivateStorage(file, image, 0);
828 }
829
830 public void copyImageToPrivateStorage(Message message, Uri image)
831 throws FileCopyException, ImageCompressionException {
832 final String filename;
833 switch (Config.IMAGE_FORMAT) {
834 case JPEG:
835 filename = String.format("%s.%s", message.getUuid(), "jpg");
836 break;
837 case PNG:
838 filename = String.format("%s.%s", message.getUuid(), "png");
839 break;
840 case WEBP:
841 filename = String.format("%s.%s", message.getUuid(), "webp");
842 break;
843 default:
844 throw new IllegalStateException("Unknown image format");
845 }
846 setupRelativeFilePath(message, filename);
847 copyImageToPrivateStorage(getFile(message), image);
848 updateFileParams(message);
849 }
850
851 public void setupRelativeFilePath(final Message message, final String filename) {
852 final String extension = MimeUtils.extractRelevantExtension(filename);
853 final String mime = MimeUtils.guessMimeTypeFromExtension(extension);
854 setupRelativeFilePath(message, filename, mime);
855 }
856
857 public File getStorageLocation(final String filename, final String mime) {
858 final File parentDirectory;
859 if (Strings.isNullOrEmpty(mime)) {
860 parentDirectory =
861 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
862 } else if (mime.startsWith("image/")) {
863 parentDirectory =
864 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
865 } else if (mime.startsWith("video/")) {
866 parentDirectory =
867 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
868 } else if (MediaAdapter.DOCUMENT_MIMES.contains(mime)) {
869 parentDirectory =
870 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
871 } else {
872 parentDirectory =
873 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
874 }
875 final File appDirectory =
876 new File(parentDirectory, mXmppConnectionService.getString(R.string.app_name));
877 return new File(appDirectory, filename);
878 }
879
880 public static boolean inConversationsDirectory(final Context context, String path) {
881 final File fileDirectory = new File(path).getParentFile();
882 for (final String type : STORAGE_TYPES) {
883 final File typeDirectory =
884 new File(
885 Environment.getExternalStoragePublicDirectory(type),
886 context.getString(R.string.app_name));
887 if (typeDirectory.equals(fileDirectory)) {
888 return true;
889 }
890 }
891 return false;
892 }
893
894 public void setupRelativeFilePath(
895 final Message message, final String filename, final String mime) {
896 final File file = getStorageLocation(filename, mime);
897 message.setRelativeFilePath(file.getAbsolutePath());
898 }
899
900 public boolean unusualBounds(final Uri image) {
901 try {
902 final BitmapFactory.Options options = new BitmapFactory.Options();
903 options.inJustDecodeBounds = true;
904 final InputStream inputStream =
905 mXmppConnectionService.getContentResolver().openInputStream(image);
906 BitmapFactory.decodeStream(inputStream, null, options);
907 close(inputStream);
908 float ratio = (float) options.outHeight / options.outWidth;
909 return ratio > (21.0f / 9.0f) || ratio < (9.0f / 21.0f);
910 } catch (final Exception e) {
911 Log.w(Config.LOGTAG, "unable to detect image bounds", e);
912 return false;
913 }
914 }
915
916 private int getRotation(final File file) {
917 try (final InputStream inputStream = new FileInputStream(file)) {
918 return getRotation(inputStream);
919 } catch (Exception e) {
920 return 0;
921 }
922 }
923
924 private static int getRotation(final Context context, final Uri image) {
925 try (final InputStream is = context.getContentResolver().openInputStream(image)) {
926 return is == null ? 0 : getRotation(is);
927 } catch (final Exception e) {
928 return 0;
929 }
930 }
931
932 private static int getRotation(final InputStream inputStream) throws IOException {
933 final ExifInterface exif = new ExifInterface(inputStream);
934 final int orientation =
935 exif.getAttributeInt(
936 ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED);
937 switch (orientation) {
938 case ExifInterface.ORIENTATION_ROTATE_180:
939 return 180;
940 case ExifInterface.ORIENTATION_ROTATE_90:
941 return 90;
942 case ExifInterface.ORIENTATION_ROTATE_270:
943 return 270;
944 default:
945 return 0;
946 }
947 }
948
949 public Bitmap getThumbnail(Message message, int size, boolean cacheOnly) throws IOException {
950 final String uuid = message.getUuid();
951 final LruCache<String, Bitmap> cache = mXmppConnectionService.getBitmapCache();
952 Bitmap thumbnail = cache.get(uuid);
953 if ((thumbnail == null) && (!cacheOnly)) {
954 synchronized (THUMBNAIL_LOCK) {
955 thumbnail = cache.get(uuid);
956 if (thumbnail != null) {
957 return thumbnail;
958 }
959 DownloadableFile file = getFile(message);
960 final String mime = file.getMimeType();
961 if ("application/pdf".equals(mime)) {
962 thumbnail = getPdfDocumentPreview(file, size);
963 } else if (mime.startsWith("video/")) {
964 thumbnail = getVideoPreview(file, size);
965 } else {
966 final Bitmap fullSize = getFullSizeImagePreview(file, size);
967 if (fullSize == null) {
968 throw new FileNotFoundException();
969 }
970 thumbnail = resize(fullSize, size);
971 thumbnail = rotate(thumbnail, getRotation(file));
972 if (mime.equals("image/gif")) {
973 Bitmap withGifOverlay = thumbnail.copy(Bitmap.Config.ARGB_8888, true);
974 drawOverlay(
975 withGifOverlay,
976 paintOverlayBlack(withGifOverlay)
977 ? R.drawable.play_gif_black
978 : R.drawable.play_gif_white,
979 1.0f);
980 thumbnail.recycle();
981 thumbnail = withGifOverlay;
982 }
983 }
984 cache.put(uuid, thumbnail);
985 }
986 }
987 return thumbnail;
988 }
989
990 private Bitmap getFullSizeImagePreview(File file, int size) {
991 BitmapFactory.Options options = new BitmapFactory.Options();
992 options.inSampleSize = calcSampleSize(file, size);
993 try {
994 return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
995 } catch (OutOfMemoryError e) {
996 options.inSampleSize *= 2;
997 return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
998 }
999 }
1000
1001 private void drawOverlay(Bitmap bitmap, int resource, float factor) {
1002 Bitmap overlay =
1003 BitmapFactory.decodeResource(mXmppConnectionService.getResources(), resource);
1004 Canvas canvas = new Canvas(bitmap);
1005 float targetSize = Math.min(canvas.getWidth(), canvas.getHeight()) * factor;
1006 Log.d(
1007 Config.LOGTAG,
1008 "target size overlay: "
1009 + targetSize
1010 + " overlay bitmap size was "
1011 + overlay.getHeight());
1012 float left = (canvas.getWidth() - targetSize) / 2.0f;
1013 float top = (canvas.getHeight() - targetSize) / 2.0f;
1014 RectF dst = new RectF(left, top, left + targetSize - 1, top + targetSize - 1);
1015 canvas.drawBitmap(overlay, null, dst, createAntiAliasingPaint());
1016 }
1017
1018 /** https://stackoverflow.com/a/3943023/210897 */
1019 private boolean paintOverlayBlack(final Bitmap bitmap) {
1020 final int h = bitmap.getHeight();
1021 final int w = bitmap.getWidth();
1022 int record = 0;
1023 for (int y = Math.round(h * IGNORE_PADDING); y < h - Math.round(h * IGNORE_PADDING); ++y) {
1024 for (int x = Math.round(w * IGNORE_PADDING);
1025 x < w - Math.round(w * IGNORE_PADDING);
1026 ++x) {
1027 int pixel = bitmap.getPixel(x, y);
1028 if ((Color.red(pixel) * 0.299
1029 + Color.green(pixel) * 0.587
1030 + Color.blue(pixel) * 0.114)
1031 > 186) {
1032 --record;
1033 } else {
1034 ++record;
1035 }
1036 }
1037 }
1038 return record < 0;
1039 }
1040
1041 private boolean paintOverlayBlackPdf(final Bitmap bitmap) {
1042 final int h = bitmap.getHeight();
1043 final int w = bitmap.getWidth();
1044 int white = 0;
1045 for (int y = 0; y < h; ++y) {
1046 for (int x = 0; x < w; ++x) {
1047 int pixel = bitmap.getPixel(x, y);
1048 if ((Color.red(pixel) * 0.299
1049 + Color.green(pixel) * 0.587
1050 + Color.blue(pixel) * 0.114)
1051 > 186) {
1052 white++;
1053 }
1054 }
1055 }
1056 return white > (h * w * 0.4f);
1057 }
1058
1059 private Bitmap cropCenterSquareVideo(Uri uri, int size) {
1060 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1061 Bitmap frame;
1062 try {
1063 metadataRetriever.setDataSource(mXmppConnectionService, uri);
1064 frame = metadataRetriever.getFrameAtTime(0);
1065 metadataRetriever.release();
1066 return cropCenterSquare(frame, size);
1067 } catch (Exception e) {
1068 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1069 frame.eraseColor(0xff000000);
1070 return frame;
1071 }
1072 }
1073
1074 private Bitmap getVideoPreview(final File file, final int size) {
1075 final MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1076 Bitmap frame;
1077 try {
1078 metadataRetriever.setDataSource(file.getAbsolutePath());
1079 frame = metadataRetriever.getFrameAtTime(0);
1080 metadataRetriever.release();
1081 frame = resize(frame, size);
1082 } catch (IOException | RuntimeException e) {
1083 frame = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1084 frame.eraseColor(0xff000000);
1085 }
1086 drawOverlay(
1087 frame,
1088 paintOverlayBlack(frame)
1089 ? R.drawable.play_video_black
1090 : R.drawable.play_video_white,
1091 0.75f);
1092 return frame;
1093 }
1094
1095 @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
1096 private Bitmap getPdfDocumentPreview(final File file, final int size) {
1097 try {
1098 final ParcelFileDescriptor fileDescriptor =
1099 ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1100 final Bitmap rendered = renderPdfDocument(fileDescriptor, size, true);
1101 drawOverlay(
1102 rendered,
1103 paintOverlayBlackPdf(rendered)
1104 ? R.drawable.open_pdf_black
1105 : R.drawable.open_pdf_white,
1106 0.75f);
1107 return rendered;
1108 } catch (final IOException | SecurityException e) {
1109 Log.d(Config.LOGTAG, "unable to render PDF document preview", e);
1110 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1111 placeholder.eraseColor(0xff000000);
1112 return placeholder;
1113 }
1114 }
1115
1116 private Bitmap cropCenterSquarePdf(final Uri uri, final int size) {
1117 try {
1118 ParcelFileDescriptor fileDescriptor =
1119 mXmppConnectionService.getContentResolver().openFileDescriptor(uri, "r");
1120 final Bitmap bitmap = renderPdfDocument(fileDescriptor, size, false);
1121 return cropCenterSquare(bitmap, size);
1122 } catch (Exception e) {
1123 final Bitmap placeholder = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1124 placeholder.eraseColor(0xff000000);
1125 return placeholder;
1126 }
1127 }
1128
1129 private Bitmap renderPdfDocument(
1130 ParcelFileDescriptor fileDescriptor, int targetSize, boolean fit) throws IOException {
1131 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1132 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1133 final Dimensions dimensions =
1134 scalePdfDimensions(
1135 new Dimensions(page.getHeight(), page.getWidth()), targetSize, fit);
1136 final Bitmap rendered =
1137 Bitmap.createBitmap(dimensions.width, dimensions.height, Bitmap.Config.ARGB_8888);
1138 rendered.eraseColor(0xffffffff);
1139 page.render(rendered, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
1140 page.close();
1141 pdfRenderer.close();
1142 fileDescriptor.close();
1143 return rendered;
1144 }
1145
1146 public Uri getTakePhotoUri() {
1147 final String filename =
1148 String.format("IMG_%s.%s", IMAGE_DATE_FORMAT.format(new Date()), "jpg");
1149 final File directory;
1150 if (Config.ONLY_INTERNAL_STORAGE) {
1151 directory = new File(mXmppConnectionService.getCacheDir(), "Camera");
1152 } else {
1153 directory =
1154 new File(
1155 Environment.getExternalStoragePublicDirectory(
1156 Environment.DIRECTORY_DCIM),
1157 "Camera");
1158 }
1159 final File file = new File(directory, filename);
1160 file.getParentFile().mkdirs();
1161 return getUriForFile(mXmppConnectionService, file);
1162 }
1163
1164 public void deleteHistoricAvatarPath() {
1165 delete(getHistoricAvatarPath());
1166 }
1167
1168 private void delete(final File file) {
1169 if (file.isDirectory()) {
1170 final File[] files = file.listFiles();
1171 if (files != null) {
1172 for (final File f : files) {
1173 delete(f);
1174 }
1175 }
1176 }
1177 if (file.delete()) {
1178 Log.d(Config.LOGTAG, "deleted " + file.getAbsolutePath());
1179 }
1180 }
1181
1182 private File getHistoricAvatarPath() {
1183 return new File(mXmppConnectionService.getFilesDir(), "/avatars/");
1184 }
1185
1186 public File getAvatarFile(final String avatar) {
1187 return getAvatarFile(mXmppConnectionService, avatar);
1188 }
1189
1190 public static File getAvatarFile(Context context, final String avatar) {
1191 return new File(context.getCacheDir(), "/avatars/" + avatar);
1192 }
1193
1194 public Uri getAvatarUri(String avatar) {
1195 return Uri.fromFile(getAvatarFile(avatar));
1196 }
1197
1198 public Bitmap cropCenterSquare(final Uri image, final int size) {
1199 return cropCenterSquare(mXmppConnectionService, image, size);
1200 }
1201
1202 public static Bitmap cropCenterSquare(final Context context, final Uri image, final int size) {
1203 if (image == null) {
1204 return null;
1205 }
1206 final BitmapFactory.Options options = new BitmapFactory.Options();
1207 try {
1208 options.inSampleSize = calcSampleSize(context, image, size);
1209 } catch (final IOException | SecurityException e) {
1210 Log.d(Config.LOGTAG, "unable to calculate sample size for " + image, e);
1211 return null;
1212 }
1213 try (final InputStream is = context.getContentResolver().openInputStream(image)) {
1214 if (is == null) {
1215 return null;
1216 }
1217 final var originalBitmap = BitmapFactory.decodeStream(is, null, options);
1218 if (originalBitmap == null) {
1219 return null;
1220 } else {
1221 final var bitmap = rotate(originalBitmap, getRotation(context, image));
1222 return cropCenterSquare(bitmap, size);
1223 }
1224 } catch (final SecurityException | IOException e) {
1225 Log.d(Config.LOGTAG, "unable to open file " + image, e);
1226 return null;
1227 }
1228 }
1229
1230 public Bitmap cropCenter(final Uri image, final int newHeight, final int newWidth) {
1231 if (image == null) {
1232 return null;
1233 }
1234 InputStream is = null;
1235 try {
1236 BitmapFactory.Options options = new BitmapFactory.Options();
1237 options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
1238 is = mXmppConnectionService.getContentResolver().openInputStream(image);
1239 if (is == null) {
1240 return null;
1241 }
1242 Bitmap source = BitmapFactory.decodeStream(is, null, options);
1243 if (source == null) {
1244 return null;
1245 }
1246 int sourceWidth = source.getWidth();
1247 int sourceHeight = source.getHeight();
1248 float xScale = (float) newWidth / sourceWidth;
1249 float yScale = (float) newHeight / sourceHeight;
1250 float scale = Math.max(xScale, yScale);
1251 float scaledWidth = scale * sourceWidth;
1252 float scaledHeight = scale * sourceHeight;
1253 float left = (newWidth - scaledWidth) / 2;
1254 float top = (newHeight - scaledHeight) / 2;
1255
1256 RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
1257 Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
1258 Canvas canvas = new Canvas(dest);
1259 canvas.drawBitmap(source, null, targetRect, createAntiAliasingPaint());
1260 if (source.isRecycled()) {
1261 source.recycle();
1262 }
1263 return dest;
1264 } catch (SecurityException e) {
1265 return null; // android 6.0 with revoked permissions for example
1266 } catch (IOException e) {
1267 return null;
1268 } finally {
1269 close(is);
1270 }
1271 }
1272
1273 public static Bitmap cropCenterSquare(final Bitmap input, final int sizeIn) {
1274 final int w = input.getWidth();
1275 final int h = input.getHeight();
1276 final int size;
1277 final float outWidth;
1278 final float outHeight;
1279 if (w < sizeIn || h < sizeIn) {
1280 size = Math.min(w, h);
1281 outWidth = w;
1282 outHeight = h;
1283 } else {
1284 size = sizeIn;
1285 final float scale = Math.max((float) sizeIn / h, (float) sizeIn / w);
1286 outWidth = scale * w;
1287 outHeight = scale * h;
1288 }
1289 float left = (size - outWidth) / 2;
1290 float top = (size - outHeight) / 2;
1291 final var target = new RectF(left, top, left + outWidth, top + outHeight);
1292
1293 final var output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
1294 final var canvas = new Canvas(output);
1295 canvas.drawBitmap(input, null, target, createAntiAliasingPaint());
1296 if (!input.isRecycled()) {
1297 input.recycle();
1298 }
1299 return output;
1300 }
1301
1302 private int calcSampleSize(final Uri image, int size) throws IOException, SecurityException {
1303 return calcSampleSize(mXmppConnectionService, image, size);
1304 }
1305
1306 private static int calcSampleSize(final Context context, final Uri image, int size)
1307 throws IOException, SecurityException {
1308 final BitmapFactory.Options options = new BitmapFactory.Options();
1309 options.inJustDecodeBounds = true;
1310 try (final InputStream inputStream = context.getContentResolver().openInputStream(image)) {
1311 BitmapFactory.decodeStream(inputStream, null, options);
1312 return calcSampleSize(options, size);
1313 }
1314 }
1315
1316 public void updateFileParams(final Message message) {
1317 updateFileParams(message, null);
1318 }
1319
1320 public void updateFileParams(final Message message, final String url) {
1321 final boolean encrypted =
1322 message.getEncryption() == Message.ENCRYPTION_PGP
1323 || message.getEncryption() == Message.ENCRYPTION_DECRYPTED;
1324 final DownloadableFile file = getFile(message);
1325 final String mime = file.getMimeType();
1326 final boolean image =
1327 message.getType() == Message.TYPE_IMAGE
1328 || (mime != null && mime.startsWith("image/"));
1329 final boolean privateMessage = message.isPrivateMessage();
1330 final StringBuilder body = new StringBuilder();
1331 if (url != null) {
1332 body.append(url);
1333 }
1334 if (encrypted && !file.exists()) {
1335 Log.d(Config.LOGTAG, "skipping updateFileParams because file is encrypted");
1336 final DownloadableFile encryptedFile = getFile(message, false);
1337 body.append('|').append(encryptedFile.getSize());
1338 } else {
1339 Log.d(Config.LOGTAG, "running updateFileParams");
1340 final boolean ambiguous = MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime);
1341 final boolean video = mime != null && mime.startsWith("video/");
1342 final boolean audio = mime != null && mime.startsWith("audio/");
1343 final boolean pdf = "application/pdf".equals(mime);
1344 body.append('|').append(file.getSize());
1345 if (ambiguous) {
1346 try {
1347 final Dimensions dimensions = getVideoDimensions(file);
1348 if (dimensions.valid()) {
1349 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is video");
1350 body.append('|')
1351 .append(dimensions.width)
1352 .append('|')
1353 .append(dimensions.height);
1354 } else {
1355 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1356 body.append("|0|0|").append(getMediaRuntime(file));
1357 }
1358 } catch (final IOException | NotAVideoFile e) {
1359 Log.d(Config.LOGTAG, "ambiguous file " + mime + " is audio");
1360 body.append("|0|0|").append(getMediaRuntime(file));
1361 }
1362 } else if (image || video || pdf) {
1363 try {
1364 final Dimensions dimensions;
1365 if (video) {
1366 dimensions = getVideoDimensions(file);
1367 } else if (pdf) {
1368 dimensions = getPdfDocumentDimensions(file);
1369 } else {
1370 dimensions = getImageDimensions(file);
1371 }
1372 if (dimensions.valid()) {
1373 body.append('|')
1374 .append(dimensions.width)
1375 .append('|')
1376 .append(dimensions.height);
1377 }
1378 } catch (final IOException | NotAVideoFile notAVideoFile) {
1379 Log.d(
1380 Config.LOGTAG,
1381 "file with mime type " + file.getMimeType() + " was not a video file");
1382 // fall threw
1383 }
1384 } else if (audio) {
1385 body.append("|0|0|").append(getMediaRuntime(file));
1386 }
1387 }
1388 message.setBody(body.toString());
1389 message.setDeleted(false);
1390 message.setType(
1391 privateMessage
1392 ? Message.TYPE_PRIVATE_FILE
1393 : (image ? Message.TYPE_IMAGE : Message.TYPE_FILE));
1394 }
1395
1396 private int getMediaRuntime(final File file) {
1397 try {
1398 final MediaMetadataRetriever mediaMetadataRetriever = new MediaMetadataRetriever();
1399 mediaMetadataRetriever.setDataSource(file.toString());
1400 final String value =
1401 mediaMetadataRetriever.extractMetadata(
1402 MediaMetadataRetriever.METADATA_KEY_DURATION);
1403 if (Strings.isNullOrEmpty(value)) {
1404 return 0;
1405 }
1406 return Integer.parseInt(value);
1407 } catch (final Exception e) {
1408 return 0;
1409 }
1410 }
1411
1412 private Dimensions getImageDimensions(File file) {
1413 final BitmapFactory.Options options = new BitmapFactory.Options();
1414 options.inJustDecodeBounds = true;
1415 BitmapFactory.decodeFile(file.getAbsolutePath(), options);
1416 final int rotation = getRotation(file);
1417 final boolean rotated = rotation == 90 || rotation == 270;
1418 final int imageHeight = rotated ? options.outWidth : options.outHeight;
1419 final int imageWidth = rotated ? options.outHeight : options.outWidth;
1420 return new Dimensions(imageHeight, imageWidth);
1421 }
1422
1423 private Dimensions getVideoDimensions(final File file) throws NotAVideoFile, IOException {
1424 MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
1425 try {
1426 metadataRetriever.setDataSource(file.getAbsolutePath());
1427 } catch (RuntimeException e) {
1428 throw new NotAVideoFile(e);
1429 }
1430 return getVideoDimensions(metadataRetriever);
1431 }
1432
1433 private Dimensions getPdfDocumentDimensions(final File file) {
1434 final ParcelFileDescriptor fileDescriptor;
1435 try {
1436 fileDescriptor = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
1437 if (fileDescriptor == null) {
1438 return new Dimensions(0, 0);
1439 }
1440 } catch (final FileNotFoundException e) {
1441 return new Dimensions(0, 0);
1442 }
1443 try {
1444 final PdfRenderer pdfRenderer = new PdfRenderer(fileDescriptor);
1445 final PdfRenderer.Page page = pdfRenderer.openPage(0);
1446 final int height = page.getHeight();
1447 final int width = page.getWidth();
1448 page.close();
1449 pdfRenderer.close();
1450 return scalePdfDimensions(new Dimensions(height, width));
1451 } catch (final IOException | SecurityException e) {
1452 Log.d(Config.LOGTAG, "unable to get dimensions for pdf document", e);
1453 return new Dimensions(0, 0);
1454 }
1455 }
1456
1457 private Dimensions scalePdfDimensions(Dimensions in) {
1458 final DisplayMetrics displayMetrics =
1459 mXmppConnectionService.getResources().getDisplayMetrics();
1460 final int target = (int) (displayMetrics.density * 288);
1461 return scalePdfDimensions(in, target, true);
1462 }
1463
1464 private static Dimensions scalePdfDimensions(
1465 final Dimensions in, final int target, final boolean fit) {
1466 final int w, h;
1467 if (fit == (in.width <= in.height)) {
1468 w = Math.max((int) (in.width / ((double) in.height / target)), 1);
1469 h = target;
1470 } else {
1471 w = target;
1472 h = Math.max((int) (in.height / ((double) in.width / target)), 1);
1473 }
1474 return new Dimensions(h, w);
1475 }
1476
1477 public Bitmap getAvatar(String avatar, int size) {
1478 if (avatar == null) {
1479 return null;
1480 }
1481 Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
1482 return bm;
1483 }
1484
1485 private static class Dimensions {
1486 public final int width;
1487 public final int height;
1488
1489 Dimensions(int height, int width) {
1490 this.width = width;
1491 this.height = height;
1492 }
1493
1494 public int getMin() {
1495 return Math.min(width, height);
1496 }
1497
1498 public boolean valid() {
1499 return width > 0 && height > 0;
1500 }
1501 }
1502
1503 private static class NotAVideoFile extends Exception {
1504 public NotAVideoFile(Throwable t) {
1505 super(t);
1506 }
1507
1508 public NotAVideoFile() {
1509 super();
1510 }
1511 }
1512
1513 public static class ImageCompressionException extends Exception {
1514
1515 ImageCompressionException(String message) {
1516 super(message);
1517 }
1518 }
1519
1520 public static class FileCopyException extends Exception {
1521 private final int resId;
1522
1523 private FileCopyException(@StringRes int resId) {
1524 this.resId = resId;
1525 }
1526
1527 public @StringRes int getResId() {
1528 return resId;
1529 }
1530 }
1531}