1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
|
package de.pixart.messenger.persistance;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.RectF;
import android.media.MediaMetadataRetriever;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.ParcelFileDescriptor;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.system.Os;
import android.system.StructStat;
import android.util.Base64;
import android.util.Base64OutputStream;
import android.util.Log;
import android.util.LruCache;
import android.webkit.MimeTypeMap;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.URL;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.entities.DownloadableFile;
import de.pixart.messenger.entities.Message;
import de.pixart.messenger.services.XmppConnectionService;
import de.pixart.messenger.utils.CryptoHelper;
import de.pixart.messenger.utils.ExifHelper;
import de.pixart.messenger.utils.FileUtils;
import de.pixart.messenger.xmpp.pep.Avatar;
public class FileBackend {
private final SimpleDateFormat fileDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
private XmppConnectionService mXmppConnectionService;
public FileBackend(XmppConnectionService service) {
this.mXmppConnectionService = service;
}
private void createNoMedia() {
final File nomedia_files = new File(getConversationsFileDirectory()+".nomedia");
final File nomedia_audios = new File(getConversationsAudioDirectory()+".nomedia");
if (!nomedia_files.exists()) {
try {
nomedia_files.createNewFile();
} catch (Exception e) {
Log.d(Config.LOGTAG, "could not create nomedia file for files directory");
}
}
if (!nomedia_audios.exists()) {
try {
nomedia_audios.createNewFile();
} catch (Exception e) {
Log.d(Config.LOGTAG, "could not create nomedia file for audio directory");
}
}
}
public void updateMediaScanner(File file) {
if (file.getAbsolutePath().startsWith(getConversationsImageDirectory())
|| file.getAbsolutePath().startsWith(getConversationsVideoDirectory())) {
Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
intent.setData(Uri.fromFile(file));
mXmppConnectionService.sendBroadcast(intent);
} else {
createNoMedia();
}
}
public boolean deleteFile(Message message) {
File file = getFile(message);
if (file.delete()) {
updateMediaScanner(file);
return true;
} else {
return false;
}
}
public DownloadableFile getFile(Message message) {
return getFile(message, true);
}
public DownloadableFile getFile(Message message, boolean decrypted) {
final boolean encrypted = !decrypted
&& (message.getEncryption() == Message.ENCRYPTION_PGP
|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
final DownloadableFile file;
String path = message.getRelativeFilePath();
if (path == null) {
String filename = fileDateFormat.format(new Date(message.getTimeSent()))+"_"+message.getUuid().substring(0,4);
path = filename;
}
if (path.startsWith("/")) {
file = new DownloadableFile(path);
} else {
String mime = message.getMimeType();
if (mime != null && mime.startsWith("image")) {
file = new DownloadableFile(getConversationsImageDirectory() + path);
} else if (mime != null && mime.startsWith("video")) {
file = new DownloadableFile(getConversationsVideoDirectory() + path);
} else if (mime != null && mime.startsWith("audio")) {
file = new DownloadableFile(getConversationsAudioDirectory() + path);
} else {
file = new DownloadableFile(getConversationsFileDirectory() + path);
}
}
if (encrypted) {
return new DownloadableFile(getConversationsFileDirectory() + file.getName() + ".pgp");
} else {
return file;
}
}
private static long getFileSize(Context context, Uri uri) {
Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
return cursor.getLong(cursor.getColumnIndex(OpenableColumns.SIZE));
} else {
return -1;
}
}
public static boolean allFilesUnderSize(Context context, List<Uri> uris, long max) {
if (max <= 0) {
Log.d(Config.LOGTAG,"server did not report max file size for http upload");
return true; //exception to be compatible with HTTP Upload < v0.2
}
for(Uri uri : uris) {
if (FileBackend.getFileSize(context, uri) > max) {
Log.d(Config.LOGTAG,"not all files are under "+max+" bytes. suggesting falling back to jingle");
return false;
}
}
return true;
}
public static String getConversationsFileDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/files/";
}
public static String getConversationsImageDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/images/";
}
public static String getConversationsVideoDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/videos/";
}
public static String getConversationsAudioDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/audios/";
}
public static String getConversationsDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Pix-Art Messenger/";
}
public Bitmap resize(Bitmap originalBitmap, int size) {
int w = originalBitmap.getWidth();
int h = originalBitmap.getHeight();
if (Math.max(w, h) > size) {
int scalledW;
int scalledH;
if (w <= h) {
scalledW = (int) (w / ((double) h / size));
scalledH = size;
} else {
scalledW = size;
scalledH = (int) (h / ((double) w / size));
}
Bitmap result = Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true);
if (originalBitmap != null && !originalBitmap.isRecycled()) {
originalBitmap.recycle();
}
return result;
} else {
return originalBitmap;
}
}
public static Bitmap rotate(Bitmap bitmap, int degree) {
if (degree == 0) {
return bitmap;
}
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix mtx = new Matrix();
mtx.postRotate(degree);
Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, true);
if (bitmap != null && !bitmap.isRecycled()) {
bitmap.recycle();
}
return result;
}
public boolean useImageAsIs(Uri uri) {
String path = getOriginalPath(uri);
if (path == null) {
return false;
}
File file = new File(path);
long size = file.length();
if (size == 0 || size >= Config.IMAGE_MAX_SIZE ) {
return false;
}
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
try {
BitmapFactory.decodeStream(mXmppConnectionService.getContentResolver().openInputStream(uri), null, options);
if (options == null || options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
return false;
}
return (options.outWidth <= Config.IMAGE_SIZE && options.outHeight <= Config.IMAGE_SIZE && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
} catch (FileNotFoundException e) {
return false;
}
}
public String getOriginalPath(Uri uri) {
return FileUtils.getPath(mXmppConnectionService,uri);
}
public void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
file.getParentFile().mkdirs();
OutputStream os = null;
InputStream is = null;
try {
file.createNewFile();
os = new FileOutputStream(file);
is = mXmppConnectionService.getContentResolver().openInputStream(uri);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
os.flush();
} catch(FileNotFoundException e) {
throw new FileCopyException(R.string.error_file_not_found);
} catch (IOException e) {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} finally {
close(os);
close(is);
}
Log.d(Config.LOGTAG, "output file name " + file.getAbsolutePath());
}
public void copyFileToPrivateStorage(Message message, Uri uri) throws FileCopyException {
String mime = mXmppConnectionService.getContentResolver().getType(uri);
Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage (mime="+mime+")");
String extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mime);
if (extension == null) {
extension = getExtensionFromUri(uri);
}
String filename = fileDateFormat.format(new Date(message.getTimeSent()))+"_"+message.getUuid().substring(0,4);
message.setRelativeFilePath(filename + "." + extension);
copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
}
private String getExtensionFromUri(Uri uri) {
String[] projection = {MediaStore.MediaColumns.DATA};
String filename = null;
Cursor cursor = mXmppConnectionService.getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
try {
if (cursor.moveToFirst()) {
filename = cursor.getString(0);
}
} catch (Exception e) {
filename = null;
} finally {
cursor.close();
}
}
int pos = filename == null ? -1 : filename.lastIndexOf('.');
return pos > 0 ? filename.substring(pos+1) : null;
}
private void copyImageToPrivateStorage(File file, Uri image, int sampleSize) throws FileCopyException {
file.getParentFile().mkdirs();
InputStream is = null;
OutputStream os = null;
try {
file.createNewFile();
is = mXmppConnectionService.getContentResolver().openInputStream(image);
Bitmap originalBitmap;
BitmapFactory.Options options = new BitmapFactory.Options();
int inSampleSize = (int) Math.pow(2, sampleSize);
Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
options.inSampleSize = inSampleSize;
originalBitmap = BitmapFactory.decodeStream(is, null, options);
is.close();
if (originalBitmap == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
int rotation = getRotation(image);
scaledBitmap = rotate(scaledBitmap, rotation);
boolean targetSizeReached = false;
int quality = Config.IMAGE_QUALITY;
while(!targetSizeReached) {
os = new FileOutputStream(file);
boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
if (!success) {
throw new FileCopyException(R.string.error_compressing_image);
}
os.flush();
targetSizeReached = file.length() <= Config.IMAGE_MAX_SIZE || quality <= 50;
quality -= 5;
}
scaledBitmap.recycle();
return;
} catch (FileNotFoundException e) {
throw new FileCopyException(R.string.error_file_not_found);
} catch (IOException e) {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} catch (SecurityException e) {
throw new FileCopyException(R.string.error_security_exception_during_image_copy);
} catch (OutOfMemoryError e) {
++sampleSize;
if (sampleSize <= 3) {
copyImageToPrivateStorage(file, image, sampleSize);
} else {
throw new FileCopyException(R.string.error_out_of_memory);
}
} catch (NullPointerException e) {
throw new FileCopyException(R.string.error_io_exception);
} finally {
close(os);
close(is);
}
}
public void copyImageToPrivateStorage(File file, Uri image) throws FileCopyException {
copyImageToPrivateStorage(file, image, 0);
}
public void copyImageToPrivateStorage(Message message, Uri image) throws FileCopyException {
String filename = fileDateFormat.format(new Date(message.getTimeSent()))+"_"+message.getUuid().substring(0,4);
switch(Config.IMAGE_FORMAT) {
case JPEG:
message.setRelativeFilePath(filename+".jpg");
break;
case PNG:
message.setRelativeFilePath(filename+".png");
break;
case WEBP:
message.setRelativeFilePath(filename+".webp");
break;
}
copyImageToPrivateStorage(getFile(message), image);
updateFileParams(message);
}
private int getRotation(File file) {
return getRotation(Uri.parse("file://"+file.getAbsolutePath()));
}
private int getRotation(Uri image) {
InputStream is = null;
try {
is = mXmppConnectionService.getContentResolver().openInputStream(image);
return ExifHelper.getOrientation(is);
} catch (FileNotFoundException e) {
return 0;
} finally {
close(is);
}
}
public Bitmap getThumbnail(Message message, int size, boolean cacheOnly) throws FileNotFoundException {
final String uuid = message.getUuid();
final LruCache<String,Bitmap> cache = mXmppConnectionService.getBitmapCache();
Bitmap thumbnail = cache.get(uuid);
if ((thumbnail == null) && (!cacheOnly)) {
synchronized (cache) {
thumbnail = cache.get(uuid);
if (thumbnail != null) {
return thumbnail;
}
DownloadableFile file = getFile(message);
if (file.getMimeType().startsWith("video/")) {
thumbnail = getVideoPreview(file, size);
} else {
Bitmap fullsize = getFullsizeImagePreview(file, size);
if (fullsize == null) {
throw new FileNotFoundException();
}
thumbnail = resize(fullsize, size);
thumbnail = rotate(thumbnail, getRotation(file));
}
this.mXmppConnectionService.getBitmapCache().put(uuid, thumbnail);
}
}
return thumbnail;
}
private Bitmap getFullsizeImagePreview(File file, int size) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(file, size);
try {
return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
} catch (OutOfMemoryError e) {
options.inSampleSize *= 2;
return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
}
}
private Bitmap getVideoPreview(File file, int size) {
MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
Bitmap frame;
try {
metadataRetriever.setDataSource(file.getAbsolutePath());
frame = metadataRetriever.getFrameAtTime(0);
metadataRetriever.release();
frame = resize(frame, size);
} catch(IllegalArgumentException | NullPointerException e) {
frame = Bitmap.createBitmap(size,size, Bitmap.Config.ARGB_8888);
frame.eraseColor(0xff000000);
}
Canvas canvas = new Canvas(frame);
Bitmap play = BitmapFactory.decodeResource(mXmppConnectionService.getResources(), R.drawable.play_video);
float x = (frame.getWidth() - play.getWidth()) / 2.0f;
float y = (frame.getHeight() - play.getHeight()) / 2.0f;
canvas.drawBitmap(play,x,y,null);
return frame;
}
public Uri getTakePhotoUri() {
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM));
pathBuilder.append('/');
pathBuilder.append("Camera");
pathBuilder.append('/');
pathBuilder.append(this.fileDateFormat.format(new Date()) + ".jpg");
Uri uri = Uri.parse("file://" + pathBuilder.toString());
File file = new File(uri.toString());
file.getParentFile().mkdirs();
return uri;
}
public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
try {
Avatar avatar = new Avatar();
Bitmap bm = cropCenterSquare(image, size);
if (bm == null) {
return null;
}
ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
Base64OutputStream mBase64OutputSttream = new Base64OutputStream(
mByteArrayOutputStream, Base64.DEFAULT);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
DigestOutputStream mDigestOutputStream = new DigestOutputStream(
mBase64OutputSttream, digest);
if (!bm.compress(format, 75, mDigestOutputStream)) {
return null;
}
mDigestOutputStream.flush();
mDigestOutputStream.close();
avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
avatar.image = new String(mByteArrayOutputStream.toByteArray());
return avatar;
} catch (NoSuchAlgorithmException e) {
return null;
} catch (IOException e) {
return null;
}
}
public Avatar getStoredPepAvatar(String hash) {
if (hash == null) {
return null;
}
Avatar avatar = new Avatar();
File file = new File(getAvatarPath(hash));
FileInputStream is = null;
try {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
is = new FileInputStream(file);
ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
Base64OutputStream mBase64OutputStream = new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
DigestOutputStream os = new DigestOutputStream(mBase64OutputStream, digest);
byte[] buffer = new byte[4096];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
os.flush();
os.close();
avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
avatar.image = new String(mByteArrayOutputStream.toByteArray());
avatar.height = options.outHeight;
avatar.width = options.outWidth;
return avatar;
} catch (IOException e) {
return null;
} catch (NoSuchAlgorithmException e) {
return null;
} finally {
close(is);
}
}
public boolean isAvatarCached(Avatar avatar) {
File file = new File(getAvatarPath(avatar.getFilename()));
return file.exists();
}
public boolean save(Avatar avatar) {
File file;
if (isAvatarCached(avatar)) {
file = new File(getAvatarPath(avatar.getFilename()));
} else {
String filename = getAvatarPath(avatar.getFilename());
file = new File(filename + ".tmp");
file.getParentFile().mkdirs();
OutputStream os = null;
try {
file.createNewFile();
os = new FileOutputStream(file);
MessageDigest digest = MessageDigest.getInstance("SHA-1");
digest.reset();
DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest);
mDigestOutputStream.write(avatar.getImageAsBytes());
mDigestOutputStream.flush();
mDigestOutputStream.close();
String sha1sum = CryptoHelper.bytesToHex(digest.digest());
if (sha1sum.equals(avatar.sha1sum)) {
file.renameTo(new File(filename));
} else {
Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner);
file.delete();
return false;
}
} catch (IllegalArgumentException | IOException | NoSuchAlgorithmException e) {
return false;
} finally {
close(os);
}
}
avatar.size = file.length();
return true;
}
public String getAvatarPath(String avatar) {
return mXmppConnectionService.getFilesDir().getAbsolutePath()+ "/avatars/" + avatar;
}
public Uri getAvatarUri(String avatar) {
return Uri.parse("file:" + getAvatarPath(avatar));
}
public Bitmap cropCenterSquare(Uri image, int size) {
if (image == null) {
return null;
}
InputStream is = null;
try {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(image, size);
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
return null;
}
Bitmap input = BitmapFactory.decodeStream(is, null, options);
if (input == null) {
return null;
} else {
input = rotate(input, getRotation(image));
return cropCenterSquare(input, size);
}
} catch (SecurityException e) {
return null; // happens for example on Android 6.0 if contacts permissions get revoked
} catch (FileNotFoundException e) {
return null;
} finally {
close(is);
}
}
public Bitmap cropCenter(Uri image, int newHeight, int newWidth) {
if (image == null) {
return null;
}
InputStream is = null;
try {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = calcSampleSize(image, Math.max(newHeight, newWidth));
is = mXmppConnectionService.getContentResolver().openInputStream(image);
if (is == null) {
return null;
}
Bitmap source = BitmapFactory.decodeStream(is, null, options);
if (source == null) {
return null;
}
int sourceWidth = source.getWidth();
int sourceHeight = source.getHeight();
float xScale = (float) newWidth / sourceWidth;
float yScale = (float) newHeight / sourceHeight;
float scale = Math.max(xScale, yScale);
float scaledWidth = scale * sourceWidth;
float scaledHeight = scale * sourceHeight;
float left = (newWidth - scaledWidth) / 2;
float top = (newHeight - scaledHeight) / 2;
RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight);
Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(dest);
canvas.drawBitmap(source, null, targetRect, null);
if (source != null && !source.isRecycled()) {
source.recycle();
}
return dest;
} catch (SecurityException e) {
return null; //android 6.0 with revoked permissions for example
} catch (FileNotFoundException e) {
return null;
} finally {
close(is);
}
}
public Bitmap cropCenterSquare(Bitmap input, int size) {
int w = input.getWidth();
int h = input.getHeight();
float scale = Math.max((float) size / h, (float) size / w);
float outWidth = scale * w;
float outHeight = scale * h;
float left = (size - outWidth) / 2;
float top = (size - outHeight) / 2;
RectF target = new RectF(left, top, left + outWidth, top + outHeight);
Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
canvas.drawBitmap(input, null, target, null);
if (input != null && !input.isRecycled()) {
input.recycle();
}
return output;
}
private int calcSampleSize(Uri image, int size) throws FileNotFoundException, SecurityException {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(mXmppConnectionService.getContentResolver().openInputStream(image), null, options);
return calcSampleSize(options, size);
}
private static int calcSampleSize(File image, int size) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(image.getAbsolutePath(), options);
return calcSampleSize(options, size);
}
public static int calcSampleSize(BitmapFactory.Options options, int size) {
int height = options.outHeight;
int width = options.outWidth;
int inSampleSize = 1;
if (height > size || width > size) {
int halfHeight = height / 2;
int halfWidth = width / 2;
while ((halfHeight / inSampleSize) > size
&& (halfWidth / inSampleSize) > size) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
public Uri getJingleFileUri(Message message) {
File file = getFile(message);
return Uri.parse("file://" + file.getAbsolutePath());
}
public void updateFileParams(Message message) {
updateFileParams(message,null);
}
public void updateFileParams(Message message, URL url) {
DownloadableFile file = getFile(message);
final String mime = file.getMimeType();
boolean image = message.getType() == Message.TYPE_IMAGE || (mime != null && mime.startsWith("image/"));
boolean video = mime != null && mime.startsWith("video/");
if (image || video) {
try {
Dimensions dimensions = image ? getImageDimensions(file) : getVideoDimensions(file);
if (url == null) {
message.setBody(Long.toString(file.getSize()) + '|' + dimensions.width + '|' + dimensions.height);
} else {
message.setBody(url.toString() + "|" + Long.toString(file.getSize()) + '|' + dimensions.width + '|' + dimensions.height);
}
return;
} catch (NotAVideoFile notAVideoFile) {
Log.d(Config.LOGTAG,"file with mime type "+file.getMimeType()+" was not a video file");
//fall threw
}
}
if (url != null) {
message.setBody(url.toString()+"|"+Long.toString(file.getSize()));
} else {
message.setBody(Long.toString(file.getSize()));
}
}
private Dimensions getImageDimensions(File file) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
int rotation = getRotation(file);
boolean rotated = rotation == 90 || rotation == 270;
int imageHeight = rotated ? options.outWidth : options.outHeight;
int imageWidth = rotated ? options.outHeight : options.outWidth;
return new Dimensions(imageHeight, imageWidth);
}
private Dimensions getVideoDimensions(File file) throws NotAVideoFile {
MediaMetadataRetriever metadataRetriever = new MediaMetadataRetriever();
try {
metadataRetriever.setDataSource(file.getAbsolutePath());
} catch (Exception e) {
throw new NotAVideoFile();
}
String hasVideo = metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_HAS_VIDEO);
if (hasVideo == null) {
throw new NotAVideoFile();
}
int rotation = extractRotationFromMediaRetriever(metadataRetriever);
boolean rotated = rotation == 90 || rotation == 270;
int height;
try {
String h = metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT);
height = Integer.parseInt(h);
} catch (Exception e) {
height = -1;
}
int width;
try {
String w = metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH);
width = Integer.parseInt(w);
} catch (Exception e) {
width = -1;
}
metadataRetriever.release();
Log.d(Config.LOGTAG,"extracted video dims "+width+"x"+height);
return rotated ? new Dimensions(width, height) : new Dimensions(height, width);
}
private int extractRotationFromMediaRetriever(MediaMetadataRetriever metadataRetriever) {
int rotation;
if (Build.VERSION.SDK_INT >= 17) {
String r = metadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
try {
rotation = Integer.parseInt(r);
} catch (Exception e) {
rotation = 0;
}
} else {
rotation = 0;
}
return rotation;
}
private class Dimensions {
public final int width;
public final int height;
public Dimensions(int height, int width) {
this.width = width;
this.height = height;
}
}
private class NotAVideoFile extends Exception {
}
public class FileCopyException extends Exception {
private static final long serialVersionUID = -1010013599132881427L;
private int resId;
public FileCopyException(int resId) {
this.resId = resId;
}
public int getResId() {
return resId;
}
}
public Bitmap getAvatar(String avatar, int size) {
if (avatar == null) {
return null;
}
Bitmap bm = cropCenter(getAvatarUri(avatar), size, size);
if (bm == null) {
return null;
}
return bm;
}
public boolean isFileAvailable(Message message) {
return getFile(message).exists();
}
public static void close(Closeable stream) {
if (stream != null) {
try {
stream.close();
} catch (IOException e) {
}
}
}
public static void close(Socket socket) {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
}
}
}
public static boolean weOwnFile(Context context, Uri uri) {
if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
return false;
} else if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
return fileIsInFilesDir(context, uri);
} else {
return weOwnFileLollipop(uri);
}
}
/**
* This is more than hacky but probably way better than doing nothing
* Further 'optimizations' might contain to get the parents of CacheDir and NoBackupDir
* and check against those as well
*/
private static boolean fileIsInFilesDir(Context context, Uri uri) {
try {
final String haystack = context.getFilesDir().getParentFile().getCanonicalPath();
final String needle = new File(uri.getPath()).getCanonicalPath();
return needle.startsWith(haystack);
} catch (IOException e) {
return false;
}
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static boolean weOwnFileLollipop(Uri uri) {
try {
File file = new File(uri.getPath());
FileDescriptor fd = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY).getFileDescriptor();
StructStat st = Os.fstat(fd);
return st.st_uid == android.os.Process.myUid();
} catch (FileNotFoundException e) {
return false;
} catch (Exception e) {
return true;
}
}
}
|