1package eu.siacs.conversations.utils;
2
3import android.content.Context;
4import android.graphics.drawable.Drawable;
5import android.text.SpannableStringBuilder;
6import android.text.format.DateFormat;
7import android.text.format.DateUtils;
8import android.util.Pair;
9
10import androidx.annotation.ColorInt;
11import androidx.core.content.res.ResourcesCompat;
12
13import com.google.common.base.Strings;
14import com.google.common.primitives.Ints;
15
16import java.math.BigInteger;
17import java.nio.charset.StandardCharsets;
18import java.security.MessageDigest;
19import java.util.Arrays;
20import java.util.Calendar;
21import java.util.Date;
22import java.util.List;
23import java.util.Locale;
24
25import eu.siacs.conversations.Config;
26import eu.siacs.conversations.R;
27import eu.siacs.conversations.crypto.axolotl.AxolotlService;
28import eu.siacs.conversations.entities.Account;
29import eu.siacs.conversations.entities.Contact;
30import eu.siacs.conversations.entities.Conversation;
31import eu.siacs.conversations.entities.Conversational;
32import eu.siacs.conversations.entities.ListItem;
33import eu.siacs.conversations.entities.Message;
34import eu.siacs.conversations.entities.MucOptions;
35import eu.siacs.conversations.entities.Presence;
36import eu.siacs.conversations.entities.RtpSessionStatus;
37import eu.siacs.conversations.entities.Transferable;
38import eu.siacs.conversations.services.ExportBackupService;
39import eu.siacs.conversations.ui.util.MyLinkify;
40import eu.siacs.conversations.ui.util.QuoteHelper;
41import eu.siacs.conversations.xmpp.Jid;
42
43public class UIHelper {
44
45 private static final int[] UNSAFE_COLORS = {
46 0xFFF44336, //red 500
47 0xFFE53935, //red 600
48 0xFFD32F2F, //red 700
49 0xFFC62828, //red 800
50
51 0xFFEF6C00, //orange 800
52
53 0xFFF4511E, //deep orange 600
54 0xFFE64A19, //deep orange 700
55 0xFFD84315, //deep orange 800,
56 };
57
58 private static final int[] SAFE_COLORS = {
59 0xFFE91E63, //pink 500
60 0xFFD81B60, //pink 600
61 0xFFC2185B, //pink 700
62 0xFFAD1457, //pink 800
63
64 0xFF9C27B0, //purple 500
65 0xFF8E24AA, //purple 600
66 0xFF7B1FA2, //purple 700
67 0xFF6A1B9A, //purple 800
68
69 0xFF673AB7, //deep purple 500,
70 0xFF5E35B1, //deep purple 600
71 0xFF512DA8, //deep purple 700
72 0xFF4527A0, //deep purple 800,
73
74 0xFF3F51B5, //indigo 500,
75 0xFF3949AB,//indigo 600
76 0xFF303F9F,//indigo 700
77 0xFF283593, //indigo 800
78
79 0xFF2196F3, //blue 500
80 0xFF1E88E5, //blue 600
81 0xFF1976D2, //blue 700
82 0xFF1565C0, //blue 800
83
84 0xFF03A9F4, //light blue 500
85 0xFF039BE5, //light blue 600
86 0xFF0288D1, //light blue 700
87 0xFF0277BD, //light blue 800
88
89 0xFF00BCD4, //cyan 500
90 0xFF00ACC1, //cyan 600
91 0xFF0097A7, //cyan 700
92 0xFF00838F, //cyan 800
93
94 0xFF009688, //teal 500,
95 0xFF00897B, //teal 600
96 0xFF00796B, //teal 700
97 0xFF00695C, //teal 800,
98
99 //0xFF558B2F, //light green 800
100
101 //0xFFC0CA33, //lime 600
102 0xFF9E9D24, //lime 800
103
104 0xFF795548, //brown 500,
105 //0xFF4E342E, //brown 800
106 0xFF607D8B, //blue grey 500,
107 //0xFF37474F //blue grey 800
108 };
109
110 private static final int[] COLORS;
111
112 static {
113 COLORS = Arrays.copyOf(SAFE_COLORS, SAFE_COLORS.length + UNSAFE_COLORS.length);
114 System.arraycopy(UNSAFE_COLORS, 0, COLORS, SAFE_COLORS.length, UNSAFE_COLORS.length);
115 }
116
117 private static final List<String> LOCATION_QUESTIONS = Arrays.asList(
118 "where are you", //en
119 "where are you now", //en
120 "where are you right now", //en
121 "whats your 20", //en
122 "what is your 20", //en
123 "what's your 20", //en
124 "whats your twenty", //en
125 "what is your twenty", //en
126 "what's your twenty", //en
127 "wo bist du", //de
128 "wo bist du jetzt", //de
129 "wo bist du gerade", //de
130 "wo seid ihr", //de
131 "wo seid ihr jetzt", //de
132 "wo seid ihr gerade", //de
133 "dónde estás", //es
134 "donde estas" //es
135 );
136
137 private static final List<Character> PUNCTIONATION = Arrays.asList('.', ',', '?', '!', ';', ':');
138
139 private static final int SHORT_DATE_FLAGS = DateUtils.FORMAT_SHOW_DATE
140 | DateUtils.FORMAT_NO_YEAR | DateUtils.FORMAT_ABBREV_ALL;
141 private static final int FULL_DATE_FLAGS = DateUtils.FORMAT_SHOW_TIME
142 | DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_SHOW_DATE;
143
144 public static String readableTimeDifference(Context context, long time) {
145 return readableTimeDifference(context, time, false);
146 }
147
148 public static String readableTimeDifferenceFull(Context context, long time) {
149 return readableTimeDifference(context, time, true);
150 }
151
152 private static String readableTimeDifference(Context context, long time,
153 boolean fullDate) {
154 if (time == 0) {
155 return context.getString(R.string.just_now);
156 }
157 Date date = new Date(time);
158 long difference = (System.currentTimeMillis() - time) / 1000;
159 if (difference < 60) {
160 return context.getString(R.string.just_now);
161 } else if (difference < 60 * 2) {
162 return context.getString(R.string.minute_ago);
163 } else if (difference < 60 * 15) {
164 return context.getString(R.string.minutes_ago, Math.round(difference / 60.0));
165 } else if (today(date)) {
166 java.text.DateFormat df = DateFormat.getTimeFormat(context);
167 return df.format(date);
168 } else {
169 if (fullDate) {
170 return DateUtils.formatDateTime(context, date.getTime(),
171 FULL_DATE_FLAGS);
172 } else {
173 return DateUtils.formatDateTime(context, date.getTime(),
174 SHORT_DATE_FLAGS);
175 }
176 }
177 }
178
179 private static boolean today(Date date) {
180 return sameDay(date, new Date(System.currentTimeMillis()));
181 }
182
183 public static boolean today(long date) {
184 return sameDay(date, System.currentTimeMillis());
185 }
186
187 public static boolean yesterday(long date) {
188 Calendar cal1 = Calendar.getInstance();
189 Calendar cal2 = Calendar.getInstance();
190 cal1.add(Calendar.DAY_OF_YEAR, -1);
191 cal2.setTime(new Date(date));
192 return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
193 && cal1.get(Calendar.DAY_OF_YEAR) == cal2
194 .get(Calendar.DAY_OF_YEAR);
195 }
196
197 public static boolean sameDay(long a, long b) {
198 return sameDay(new Date(a), new Date(b));
199 }
200
201 private static boolean sameDay(Date a, Date b) {
202 Calendar cal1 = Calendar.getInstance();
203 Calendar cal2 = Calendar.getInstance();
204 cal1.setTime(a);
205 cal2.setTime(b);
206 return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
207 && cal1.get(Calendar.DAY_OF_YEAR) == cal2
208 .get(Calendar.DAY_OF_YEAR);
209 }
210
211 public static String lastseen(Context context, boolean active, long time) {
212 long difference = (System.currentTimeMillis() - time) / 1000;
213 if (active) {
214 return context.getString(R.string.online_right_now);
215 } else if (difference < 60) {
216 return context.getString(R.string.last_seen_now);
217 } else if (difference < 60 * 2) {
218 return context.getString(R.string.last_seen_min);
219 } else if (difference < 60 * 60) {
220 return context.getString(R.string.last_seen_mins, Math.round(difference / 60.0));
221 } else if (difference < 60 * 60 * 2) {
222 return context.getString(R.string.last_seen_hour);
223 } else if (difference < 60 * 60 * 24) {
224 return context.getString(R.string.last_seen_hours,
225 Math.round(difference / (60.0 * 60.0)));
226 } else if (difference < 60 * 60 * 48) {
227 return context.getString(R.string.last_seen_day);
228 } else {
229 return context.getString(R.string.last_seen_days,
230 Math.round(difference / (60.0 * 60.0 * 24.0)));
231 }
232 }
233
234 public static int identiconHash(String name) {
235 try {
236 MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
237 byte[] digest = sha1.digest(name.getBytes(StandardCharsets.UTF_8));
238 return Ints.fromByteArray(digest);
239 } catch (Exception e) {
240 return 0;
241 }
242 }
243
244 public static int getColorForName(String name) {
245 return getColorForName(name, false);
246 }
247
248 public static int getColorForName(String name, boolean safe) {
249 if (Config.XEP_0392) {
250 return XEP0392Helper.rgbFromNick(name);
251 }
252 if (name == null || name.isEmpty()) {
253 return 0xFF202020;
254 }
255 if (safe) {
256 return SAFE_COLORS[(int) (getLongForName(name) % SAFE_COLORS.length)];
257 } else {
258 return COLORS[(int) (getLongForName(name) % COLORS.length)];
259 }
260 }
261
262 private static long getLongForName(String name) {
263 try {
264 final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
265 return Math.abs(new BigInteger(messageDigest.digest(name.getBytes())).longValue());
266 } catch (Exception e) {
267 return 0;
268 }
269 }
270
271 public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message) {
272 return getMessagePreview(context, message, 0);
273 }
274
275 public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message, @ColorInt int textColor) {
276 final Transferable d = message.getTransferable();
277 if (d != null) {
278 switch (d.getStatus()) {
279 case Transferable.STATUS_CHECKING:
280 return new Pair<>(context.getString(R.string.checking_x,
281 getFileDescriptionString(context, message)), true);
282 case Transferable.STATUS_DOWNLOADING:
283 return new Pair<>(context.getString(R.string.receiving_x_file,
284 getFileDescriptionString(context, message),
285 d.getProgress()), true);
286 case Transferable.STATUS_OFFER:
287 case Transferable.STATUS_OFFER_CHECK_FILESIZE:
288 return new Pair<>(context.getString(R.string.x_file_offered_for_download,
289 getFileDescriptionString(context, message)), true);
290 case Transferable.STATUS_FAILED:
291 return new Pair<>(context.getString(R.string.file_transmission_failed), true);
292 case Transferable.STATUS_CANCELLED:
293 return new Pair<>(context.getString(R.string.file_transmission_cancelled), true);
294 case Transferable.STATUS_UPLOADING:
295 if (message.getStatus() == Message.STATUS_OFFERED) {
296 return new Pair<>(context.getString(R.string.offering_x_file,
297 getFileDescriptionString(context, message)), true);
298 } else {
299 return new Pair<>(context.getString(R.string.sending_x_file,
300 getFileDescriptionString(context, message)), true);
301 }
302 default:
303 return new Pair<>("", false);
304 }
305 } else if (message.isFileOrImage() && message.isDeleted()) {
306 return new Pair<>(context.getString(R.string.file_deleted), true);
307 } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
308 return new Pair<>(context.getString(R.string.pgp_message), true);
309 } else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
310 return new Pair<>(context.getString(R.string.decryption_failed), true);
311 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
312 return new Pair<>(context.getString(R.string.not_encrypted_for_this_device), true);
313 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
314 return new Pair<>(context.getString(R.string.omemo_decryption_failed), true);
315 } else if (message.isFileOrImage()) {
316 return new Pair<>(getFileDescriptionString(context, message), true);
317 } else if (message.getType() == Message.TYPE_RTP_SESSION) {
318 RtpSessionStatus rtpSessionStatus = RtpSessionStatus.of(message.getBody());
319 final boolean received = message.getStatus() == Message.STATUS_RECEIVED;
320 if (!rtpSessionStatus.successful && received) {
321 return new Pair<>(context.getString(R.string.missed_call), true);
322 } else {
323 return new Pair<>(context.getString(received ? R.string.incoming_call : R.string.outgoing_call), true);
324 }
325 } else {
326 final String body = MessageUtils.filterLtrRtl(message.getBody());
327 if (body.startsWith(Message.ME_COMMAND)) {
328 return new Pair<>(body.replaceAll("^" + Message.ME_COMMAND,
329 UIHelper.getMessageDisplayName(message) + " "), false);
330 } else if (message.isGeoUri()) {
331 return new Pair<>(context.getString(R.string.location), true);
332 } else if (message.treatAsDownloadable() || MessageUtils.unInitiatedButKnownSize(message)) {
333 return new Pair<>(context.getString(R.string.x_file_offered_for_download,
334 getFileDescriptionString(context, message)), true);
335 } else {
336 Drawable fallbackImg = ResourcesCompat.getDrawable(context.getResources(), R.drawable.ic_attach_photo, null);
337 fallbackImg.setBounds(0, 0, fallbackImg.getIntrinsicWidth(), fallbackImg.getIntrinsicHeight());
338 SpannableStringBuilder styledBody = message.getSpannableBody(null, fallbackImg);
339 if (textColor != 0) {
340 StylingHelper.format(styledBody, 0, styledBody.length() - 1, textColor);
341 }
342 MyLinkify.addLinks(styledBody, message.getConversation().getAccount(), message.getConversation().getJid());
343 SpannableStringBuilder builder = new SpannableStringBuilder();
344 for (CharSequence l : CharSequenceUtils.split(styledBody, '\n')) {
345 if (l.length() > 0) {
346 if (l.toString().equals("```")) {
347 continue;
348 }
349 char first = l.charAt(0);
350 if ((!QuoteHelper.isPositionQuoteStart(l, 0))) {
351 CharSequence line = CharSequenceUtils.trim(l);
352 if (line.length() == 0) {
353 continue;
354 }
355 char last = line.charAt(line.length() - 1);
356 if (builder.length() != 0) {
357 builder.append(' ');
358 }
359 builder.append(line);
360 if (!PUNCTIONATION.contains(last)) {
361 break;
362 }
363 }
364 }
365 }
366 if (builder.length() == 0) {
367 builder.append(body.trim());
368 }
369 return new Pair<>(builder, false);
370 }
371 }
372 }
373
374 public static boolean isLastLineQuote(String body) {
375 if (body.endsWith("\n")) {
376 return false;
377 }
378 String[] lines = body.split("\n");
379 if (lines.length == 0) {
380 return false;
381 }
382 String line = lines[lines.length - 1];
383 if (line.isEmpty()) {
384 return false;
385 }
386 char first = line.charAt(0);
387 return first == '>' && isPositionFollowedByQuoteableCharacter(line, 0) || first == '\u00bb';
388 }
389
390 public static CharSequence shorten(CharSequence input) {
391 return input.length() > 256 ? StylingHelper.subSequence(input, 0, 256) : input;
392 }
393
394 public static boolean isPositionPrecededByBodyStart(CharSequence body, int pos){
395 // true if not a single linebreak before current position
396 for (int i = pos - 1; i >= 0; i--){
397 if (body.charAt(i) != ' '){
398 return false;
399 }
400 }
401 return true;
402 }
403
404 public static boolean isPositionPrecededByLineStart(CharSequence body, int pos){
405 if (isPositionPrecededByBodyStart(body, pos)){
406 return true;
407 }
408 return body.charAt(pos - 1) == '\n';
409 }
410
411 public static boolean isPositionFollowedByQuoteableCharacter(CharSequence body, int pos) {
412 return !isPositionFollowedByNumber(body, pos)
413 && !isPositionFollowedByEmoticon(body, pos)
414 && !isPositionFollowedByEquals(body, pos);
415 }
416
417 private static boolean isPositionFollowedByNumber(CharSequence body, int pos) {
418 boolean previousWasNumber = false;
419 for (int i = pos + 1; i < body.length(); i++) {
420 char c = body.charAt(i);
421 if (Character.isDigit(body.charAt(i))) {
422 previousWasNumber = true;
423 } else if (previousWasNumber && (c == '.' || c == ',')) {
424 previousWasNumber = false;
425 } else {
426 return (Character.isWhitespace(c) || c == '%' || c == '+') && previousWasNumber;
427 }
428 }
429 return previousWasNumber;
430 }
431
432 private static boolean isPositionFollowedByEquals(CharSequence body, int pos) {
433 return body.length() > pos + 1 && body.charAt(pos + 1) == '=';
434 }
435
436 private static boolean isPositionFollowedByEmoticon(CharSequence body, int pos) {
437 if (body.length() <= pos + 1) {
438 return false;
439 } else {
440 final char first = body.charAt(pos + 1);
441 return first == ';'
442 || first == ':'
443 || first == '.' // do not quote >.< (but >>.<)
444 || closingBeforeWhitespace(body, pos + 1);
445 }
446 }
447
448 private static boolean closingBeforeWhitespace(CharSequence body, int pos) {
449 for (int i = pos; i < body.length(); ++i) {
450 final char c = body.charAt(i);
451 if (Character.isWhitespace(c)) {
452 return false;
453 } else if (QuoteHelper.isPositionQuoteCharacter(body, pos) || QuoteHelper.isPositionQuoteEndCharacter(body, pos)) {
454 return body.length() == i + 1 || Character.isWhitespace(body.charAt(i + 1));
455 }
456 }
457 return false;
458 }
459
460 public static String getDisplayName(MucOptions.User user) {
461 Contact contact = user.getContact();
462 if (contact != null) {
463 return contact.getDisplayName();
464 } else {
465 final String name = user.getName();
466 if (name != null) {
467 return name;
468 }
469 final Jid realJid = user.getRealJid();
470 if (realJid != null) {
471 return JidHelper.localPartOrFallback(realJid);
472 }
473 return null;
474 }
475 }
476
477 public static String concatNames(List<MucOptions.User> users) {
478 return concatNames(users, users.size());
479 }
480
481 public static String concatNames(List<MucOptions.User> users, int max) {
482 StringBuilder builder = new StringBuilder();
483 final boolean shortNames = users.size() >= 3;
484 for (int i = 0; i < Math.min(users.size(), max); ++i) {
485 if (builder.length() != 0) {
486 builder.append(", ");
487 }
488 final String name = UIHelper.getDisplayName(users.get(i));
489 if (name != null) {
490 builder.append(shortNames ? name.split("\\s+")[0] : name);
491 }
492 }
493 return builder.toString();
494 }
495
496 public static String getFileDescriptionString(final Context context, final Message message) {
497 final String mime = message.getMimeType();
498 if (Strings.isNullOrEmpty(mime)) {
499 return context.getString(R.string.file);
500 } else if (MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime)) {
501 return context.getString(R.string.multimedia_file);
502 } else if (mime.startsWith("audio/")) {
503 return context.getString(R.string.audio);
504 } else if (mime.startsWith("video/")) {
505 return context.getString(R.string.video);
506 } else if (mime.equals("image/gif")) {
507 return context.getString(R.string.gif);
508 } else if (mime.equals("image/svg+xml")) {
509 return context.getString(R.string.vector_graphic);
510 } else if (mime.startsWith("image/") || message.getType() == Message.TYPE_IMAGE) {
511 return context.getString(R.string.image);
512 } else if (mime.contains("pdf")) {
513 return context.getString(R.string.pdf_document);
514 } else if (mime.equals("application/vnd.android.package-archive")) {
515 return context.getString(R.string.apk);
516 } else if (mime.equals(ExportBackupService.MIME_TYPE)) {
517 return context.getString(R.string.conversations_backup);
518 } else if (mime.contains("vcard")) {
519 return context.getString(R.string.vcard);
520 } else if (mime.equals("text/x-vcalendar") || mime.equals("text/calendar")) {
521 return context.getString(R.string.event);
522 } else if (mime.equals("application/epub+zip") || mime.equals("application/vnd.amazon.mobi8-ebook")) {
523 return context.getString(R.string.ebook);
524 } else if (mime.equals("application/gpx+xml")) {
525 return context.getString(R.string.gpx_track);
526 } else if (mime.equals("text/plain")) {
527 return context.getString(R.string.plain_text_document);
528 } else {
529 return mime;
530 }
531 }
532
533 public static String getMessageDisplayName(final Message message) {
534 if (message.getModerated() != null) return "moderated";
535
536 final Conversational conversation = message.getConversation();
537 if (message.getStatus() == Message.STATUS_RECEIVED) {
538 final Contact contact = message.getContact();
539 if (conversation.getMode() == Conversation.MODE_MULTI) {
540 if (contact != null) {
541 return contact.getDisplayName();
542 } else {
543 return getDisplayedMucCounterpart(message.getCounterpart());
544 }
545 } else {
546 return contact != null ? contact.getDisplayName() : "";
547 }
548 } else {
549 if (conversation instanceof Conversation && conversation.getMode() == Conversation.MODE_MULTI) {
550 return ((Conversation) conversation).getMucOptions().getSelf().getName();
551 } else {
552 final Account account = conversation.getAccount();
553 final Jid jid = account.getJid();
554 final String displayName = account.getDisplayName();
555 if (Strings.isNullOrEmpty(displayName)) {
556 return jid.getLocal() != null ? jid.getLocal() : jid.getDomain().toString();
557 } else {
558 return displayName;
559 }
560
561 }
562 }
563 }
564
565 public static String getMessageHint(Context context, Conversation conversation) {
566 switch (conversation.getNextEncryption()) {
567 case Message.ENCRYPTION_NONE:
568 if (Config.multipleEncryptionChoices()) {
569 return context.getString(R.string.send_message);
570 } else {
571 return context.getString(R.string.send_message_to_x, conversation.getName());
572 }
573 case Message.ENCRYPTION_AXOLOTL:
574 AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
575 if (axolotlService != null && axolotlService.trustedSessionVerified(conversation)) {
576 return context.getString(R.string.send_omemo_x509_message);
577 } else {
578 return context.getString(R.string.send_omemo_message);
579 }
580 case Message.ENCRYPTION_PGP:
581 return context.getString(R.string.send_pgp_message);
582 default:
583 return "";
584 }
585 }
586
587 public static String getDisplayedMucCounterpart(final Jid counterpart) {
588 if (counterpart == null) {
589 return "";
590 } else if (!counterpart.isBareJid()) {
591 return counterpart.getResource().trim();
592 } else {
593 return counterpart.toString().trim();
594 }
595 }
596
597 public static boolean receivedLocationQuestion(final Message message) {
598 if (message == null
599 || message.getStatus() != Message.STATUS_RECEIVED
600 || message.getType() != Message.TYPE_TEXT) {
601 return false;
602 }
603 final String body = Strings.nullToEmpty(message.getBody())
604 .trim()
605 .toLowerCase(Locale.getDefault())
606 .replace("?", "").replace("¿", "");
607 return LOCATION_QUESTIONS.contains(body);
608 }
609
610 public static ListItem.Tag getTagForStatus(Context context, Presence.Status status) {
611 switch (status) {
612 case CHAT:
613 return new ListItem.Tag(context.getString(R.string.presence_chat), 0xff259b24);
614 case AWAY:
615 return new ListItem.Tag(context.getString(R.string.presence_away), 0xffff9800);
616 case XA:
617 return new ListItem.Tag(context.getString(R.string.presence_xa), 0xfff44336);
618 case DND:
619 return new ListItem.Tag(context.getString(R.string.presence_dnd), 0xfff44336);
620 default:
621 return new ListItem.Tag(context.getString(R.string.presence_online), 0xff259b24);
622 }
623 }
624
625 public static String filesizeToString(long size) {
626 if (size > (1.5 * 1024 * 1024)) {
627 return Math.round(size * 1f / (1024 * 1024)) + " MiB";
628 } else if (size >= 1024) {
629 return Math.round(size * 1f / 1024) + " KiB";
630 } else {
631 return size + " B";
632 }
633 }
634}