1package eu.siacs.conversations.utils;
2
3import android.content.Context;
4import android.content.res.ColorStateList;
5import android.text.SpannableStringBuilder;
6import android.text.format.DateFormat;
7import android.text.format.DateUtils;
8import android.util.Pair;
9import android.widget.TextView;
10
11import androidx.annotation.ColorInt;
12import androidx.annotation.ColorRes;
13import androidx.annotation.StringRes;
14import androidx.core.content.ContextCompat;
15
16import com.google.android.material.color.MaterialColors;
17import com.google.common.base.Strings;
18
19import java.math.BigInteger;
20import java.security.MessageDigest;
21import java.util.Arrays;
22import java.util.Calendar;
23import java.util.Date;
24import java.util.List;
25import java.util.Locale;
26
27import eu.siacs.conversations.Config;
28import eu.siacs.conversations.R;
29import eu.siacs.conversations.crypto.axolotl.AxolotlService;
30import eu.siacs.conversations.entities.Account;
31import eu.siacs.conversations.entities.Contact;
32import eu.siacs.conversations.entities.Conversation;
33import eu.siacs.conversations.entities.Conversational;
34import eu.siacs.conversations.entities.ListItem;
35import eu.siacs.conversations.entities.Message;
36import eu.siacs.conversations.entities.MucOptions;
37import eu.siacs.conversations.entities.Presence;
38import eu.siacs.conversations.entities.RtpSessionStatus;
39import eu.siacs.conversations.entities.Transferable;
40import eu.siacs.conversations.services.ExportBackupService;
41import eu.siacs.conversations.ui.util.QuoteHelper;
42import eu.siacs.conversations.xmpp.Jid;
43
44public class UIHelper {
45
46 private static final List<String> LOCATION_QUESTIONS = Arrays.asList(
47 "where are you", //en
48 "where are you now", //en
49 "where are you right now", //en
50 "whats your 20", //en
51 "what is your 20", //en
52 "what's your 20", //en
53 "whats your twenty", //en
54 "what is your twenty", //en
55 "what's your twenty", //en
56 "wo bist du", //de
57 "wo bist du jetzt", //de
58 "wo bist du gerade", //de
59 "wo seid ihr", //de
60 "wo seid ihr jetzt", //de
61 "wo seid ihr gerade", //de
62 "dónde estás", //es
63 "donde estas" //es
64 );
65
66 private static final List<Character> PUNCTIONATION = Arrays.asList('.', ',', '?', '!', ';', ':');
67
68 private static final int SHORT_DATE_FLAGS = DateUtils.FORMAT_SHOW_DATE
69 | DateUtils.FORMAT_NO_YEAR | DateUtils.FORMAT_ABBREV_ALL;
70 private static final int FULL_DATE_FLAGS = DateUtils.FORMAT_SHOW_TIME
71 | DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_SHOW_DATE;
72
73 public static String readableTimeDifference(Context context, long time) {
74 return readableTimeDifference(context, time, false);
75 }
76
77 public static String readableTimeDifferenceFull(Context context, long time) {
78 return readableTimeDifference(context, time, true);
79 }
80
81 private static String readableTimeDifference(Context context, long time,
82 boolean fullDate) {
83 if (time == 0) {
84 return context.getString(R.string.just_now);
85 }
86 Date date = new Date(time);
87 long difference = (System.currentTimeMillis() - time) / 1000;
88 if (difference < 60) {
89 return context.getString(R.string.just_now);
90 } else if (difference < 60 * 2) {
91 return context.getString(R.string.minute_ago);
92 } else if (difference < 60 * 15) {
93 return context.getString(R.string.minutes_ago, Math.round(difference / 60.0));
94 } else if (today(date)) {
95 java.text.DateFormat df = DateFormat.getTimeFormat(context);
96 return df.format(date);
97 } else {
98 if (fullDate) {
99 return DateUtils.formatDateTime(context, date.getTime(),
100 FULL_DATE_FLAGS);
101 } else {
102 return DateUtils.formatDateTime(context, date.getTime(),
103 SHORT_DATE_FLAGS);
104 }
105 }
106 }
107
108 private static boolean today(Date date) {
109 return sameDay(date, new Date(System.currentTimeMillis()));
110 }
111
112 public static boolean today(long date) {
113 return sameDay(date, System.currentTimeMillis());
114 }
115
116 public static boolean yesterday(long date) {
117 Calendar cal1 = Calendar.getInstance();
118 Calendar cal2 = Calendar.getInstance();
119 cal1.add(Calendar.DAY_OF_YEAR, -1);
120 cal2.setTime(new Date(date));
121 return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
122 && cal1.get(Calendar.DAY_OF_YEAR) == cal2
123 .get(Calendar.DAY_OF_YEAR);
124 }
125
126 public static boolean sameDay(long a, long b) {
127 return sameDay(new Date(a), new Date(b));
128 }
129
130 private static boolean sameDay(Date a, Date b) {
131 Calendar cal1 = Calendar.getInstance();
132 Calendar cal2 = Calendar.getInstance();
133 cal1.setTime(a);
134 cal2.setTime(b);
135 return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
136 && cal1.get(Calendar.DAY_OF_YEAR) == cal2
137 .get(Calendar.DAY_OF_YEAR);
138 }
139
140 public static String lastseen(Context context, boolean active, long time) {
141 long difference = (System.currentTimeMillis() - time) / 1000;
142 if (active) {
143 return context.getString(R.string.online_right_now);
144 } else if (difference < 60) {
145 return context.getString(R.string.last_seen_now);
146 } else if (difference < 60 * 2) {
147 return context.getString(R.string.last_seen_min);
148 } else if (difference < 60 * 60) {
149 return context.getString(R.string.last_seen_mins, Math.round(difference / 60.0));
150 } else if (difference < 60 * 60 * 2) {
151 return context.getString(R.string.last_seen_hour);
152 } else if (difference < 60 * 60 * 24) {
153 return context.getString(R.string.last_seen_hours,
154 Math.round(difference / (60.0 * 60.0)));
155 } else if (difference < 60 * 60 * 48) {
156 return context.getString(R.string.last_seen_day);
157 } else {
158 return context.getString(R.string.last_seen_days,
159 Math.round(difference / (60.0 * 60.0 * 24.0)));
160 }
161 }
162
163
164 public static int getColorForName(final String name) {
165 return XEP0392Helper.rgbFromNick(name);
166 }
167
168
169 public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message) {
170 return getMessagePreview(context, message, 0);
171 }
172
173 public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message, @ColorInt int textColor) {
174 final Transferable d = message.getTransferable();
175 if (d != null) {
176 switch (d.getStatus()) {
177 case Transferable.STATUS_CHECKING:
178 return new Pair<>(context.getString(R.string.checking_x,
179 getFileDescriptionString(context, message)), true);
180 case Transferable.STATUS_DOWNLOADING:
181 return new Pair<>(context.getString(R.string.receiving_x_file,
182 getFileDescriptionString(context, message),
183 d.getProgress()), true);
184 case Transferable.STATUS_OFFER:
185 case Transferable.STATUS_OFFER_CHECK_FILESIZE:
186 return new Pair<>(context.getString(R.string.x_file_offered_for_download,
187 getFileDescriptionString(context, message)), true);
188 case Transferable.STATUS_FAILED:
189 return new Pair<>(context.getString(R.string.file_transmission_failed), true);
190 case Transferable.STATUS_CANCELLED:
191 return new Pair<>(context.getString(R.string.file_transmission_cancelled), true);
192 case Transferable.STATUS_UPLOADING:
193 if (message.getStatus() == Message.STATUS_OFFERED) {
194 return new Pair<>(context.getString(R.string.offering_x_file,
195 getFileDescriptionString(context, message)), true);
196 } else {
197 return new Pair<>(context.getString(R.string.sending_x_file,
198 getFileDescriptionString(context, message)), true);
199 }
200 default:
201 return new Pair<>("", false);
202 }
203 } else if (message.isFileOrImage() && message.isDeleted()) {
204 return new Pair<>(context.getString(R.string.file_deleted), true);
205 } else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
206 return new Pair<>(context.getString(R.string.pgp_message), true);
207 } else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
208 return new Pair<>(context.getString(R.string.decryption_failed), true);
209 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
210 return new Pair<>(context.getString(R.string.not_encrypted_for_this_device), true);
211 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
212 return new Pair<>(context.getString(R.string.omemo_decryption_failed), true);
213 } else if (message.isFileOrImage()) {
214 return new Pair<>(getFileDescriptionString(context, message), true);
215 } else if (message.getType() == Message.TYPE_RTP_SESSION) {
216 RtpSessionStatus rtpSessionStatus = RtpSessionStatus.of(message.getBody());
217 final boolean received = message.getStatus() == Message.STATUS_RECEIVED;
218 if (!rtpSessionStatus.successful && received) {
219 return new Pair<>(context.getString(R.string.missed_call), true);
220 } else {
221 return new Pair<>(context.getString(received ? R.string.incoming_call : R.string.outgoing_call), true);
222 }
223 } else {
224 final String body = MessageUtils.filterLtrRtl(message.getBody());
225 if (body.startsWith(Message.ME_COMMAND)) {
226 return new Pair<>(body.replaceAll("^" + Message.ME_COMMAND,
227 UIHelper.getMessageDisplayName(message) + " "), false);
228 } else if (message.isGeoUri()) {
229 return new Pair<>(context.getString(R.string.location), true);
230 } else if (message.treatAsDownloadable() || MessageUtils.unInitiatedButKnownSize(message)) {
231 return new Pair<>(context.getString(R.string.x_file_offered_for_download,
232 getFileDescriptionString(context, message)), true);
233 } else {
234 SpannableStringBuilder styledBody = new SpannableStringBuilder(body);
235 if (textColor != 0) {
236 StylingHelper.format(styledBody, 0, styledBody.length() - 1, textColor);
237 }
238 SpannableStringBuilder builder = new SpannableStringBuilder();
239 for (CharSequence l : CharSequenceUtils.split(styledBody, '\n')) {
240 if (l.length() > 0) {
241 if (l.toString().equals("```")) {
242 continue;
243 }
244 char first = l.charAt(0);
245 if ((!QuoteHelper.isPositionQuoteStart(l, 0))) {
246 CharSequence line = CharSequenceUtils.trim(l);
247 if (line.length() == 0) {
248 continue;
249 }
250 char last = line.charAt(line.length() - 1);
251 if (builder.length() != 0) {
252 builder.append(' ');
253 }
254 builder.append(line);
255 if (!PUNCTIONATION.contains(last)) {
256 break;
257 }
258 }
259 }
260 }
261 if (builder.length() == 0) {
262 builder.append(body.trim());
263 }
264 return new Pair<>(builder, false);
265 }
266 }
267 }
268
269 public static boolean isLastLineQuote(String body) {
270 if (body.endsWith("\n")) {
271 return false;
272 }
273 String[] lines = body.split("\n");
274 if (lines.length == 0) {
275 return false;
276 }
277 String line = lines[lines.length - 1];
278 if (line.isEmpty()) {
279 return false;
280 }
281 char first = line.charAt(0);
282 return first == '>' && isPositionFollowedByQuoteableCharacter(line, 0) || first == '\u00bb';
283 }
284
285 public static CharSequence shorten(CharSequence input) {
286 return input.length() > 256 ? StylingHelper.subSequence(input, 0, 256) : input;
287 }
288
289 public static boolean isPositionPrecededByBodyStart(CharSequence body, int pos){
290 // true if not a single linebreak before current position
291 for (int i = pos - 1; i >= 0; i--){
292 if (body.charAt(i) != ' '){
293 return false;
294 }
295 }
296 return true;
297 }
298
299 public static boolean isPositionPrecededByLineStart(CharSequence body, int pos){
300 if (isPositionPrecededByBodyStart(body, pos)){
301 return true;
302 }
303 return body.charAt(pos - 1) == '\n';
304 }
305
306 public static boolean isPositionFollowedByQuoteableCharacter(CharSequence body, int pos) {
307 return !isPositionFollowedByNumber(body, pos)
308 && !isPositionFollowedByEmoticon(body, pos)
309 && !isPositionFollowedByEquals(body, pos);
310 }
311
312 private static boolean isPositionFollowedByNumber(CharSequence body, int pos) {
313 boolean previousWasNumber = false;
314 for (int i = pos + 1; i < body.length(); i++) {
315 char c = body.charAt(i);
316 if (Character.isDigit(body.charAt(i))) {
317 previousWasNumber = true;
318 } else if (previousWasNumber && (c == '.' || c == ',')) {
319 previousWasNumber = false;
320 } else {
321 return (Character.isWhitespace(c) || c == '%' || c == '+') && previousWasNumber;
322 }
323 }
324 return previousWasNumber;
325 }
326
327 private static boolean isPositionFollowedByEquals(CharSequence body, int pos) {
328 return body.length() > pos + 1 && body.charAt(pos + 1) == '=';
329 }
330
331 private static boolean isPositionFollowedByEmoticon(CharSequence body, int pos) {
332 if (body.length() <= pos + 1) {
333 return false;
334 } else {
335 final char first = body.charAt(pos + 1);
336 return first == ';'
337 || first == ':'
338 || first == '.' // do not quote >.< (but >>.<)
339 || closingBeforeWhitespace(body, pos + 1);
340 }
341 }
342
343 private static boolean closingBeforeWhitespace(CharSequence body, int pos) {
344 for (int i = pos; i < body.length(); ++i) {
345 final char c = body.charAt(i);
346 if (Character.isWhitespace(c)) {
347 return false;
348 } else if (QuoteHelper.isPositionQuoteCharacter(body, pos) || QuoteHelper.isPositionQuoteEndCharacter(body, pos)) {
349 return body.length() == i + 1 || Character.isWhitespace(body.charAt(i + 1));
350 }
351 }
352 return false;
353 }
354
355 public static String getDisplayName(MucOptions.User user) {
356 Contact contact = user.getContact();
357 if (contact != null) {
358 return contact.getDisplayName();
359 } else {
360 final String name = user.getName();
361 if (name != null) {
362 return name;
363 }
364 final Jid realJid = user.getRealJid();
365 if (realJid != null) {
366 return JidHelper.localPartOrFallback(realJid);
367 }
368 return null;
369 }
370 }
371
372 public static String concatNames(List<MucOptions.User> users) {
373 return concatNames(users, users.size());
374 }
375
376 public static String concatNames(List<MucOptions.User> users, int max) {
377 StringBuilder builder = new StringBuilder();
378 final boolean shortNames = users.size() >= 3;
379 for (int i = 0; i < Math.min(users.size(), max); ++i) {
380 if (builder.length() != 0) {
381 builder.append(", ");
382 }
383 final String name = UIHelper.getDisplayName(users.get(i));
384 if (name != null) {
385 builder.append(shortNames ? name.split("\\s+")[0] : name);
386 }
387 }
388 return builder.toString();
389 }
390
391 public static String getFileDescriptionString(final Context context, final Message message) {
392 final String mime = message.getMimeType();
393 if (Strings.isNullOrEmpty(mime)) {
394 return context.getString(R.string.file);
395 } else if (MimeUtils.AMBIGUOUS_CONTAINER_FORMATS.contains(mime)) {
396 return context.getString(R.string.multimedia_file);
397 } else if (mime.equals("audio/x-m4b")) {
398 return context.getString(R.string.audiobook);
399 } else if (mime.startsWith("audio/")) {
400 return context.getString(R.string.audio);
401 } else if (mime.startsWith("video/")) {
402 return context.getString(R.string.video);
403 } else if (mime.equals("image/gif")) {
404 return context.getString(R.string.gif);
405 } else if (mime.equals("image/svg+xml")) {
406 return context.getString(R.string.vector_graphic);
407 } else if (mime.startsWith("image/") || message.getType() == Message.TYPE_IMAGE) {
408 return context.getString(R.string.image);
409 } else if (mime.contains("pdf")) {
410 return context.getString(R.string.pdf_document);
411 } else if (mime.equals("application/vnd.android.package-archive")) {
412 return context.getString(R.string.apk);
413 } else if (mime.equals(ExportBackupService.MIME_TYPE)) {
414 return context.getString(R.string.conversations_backup);
415 } else if (mime.contains("vcard")) {
416 return context.getString(R.string.vcard);
417 } else if (mime.equals("text/x-vcalendar") || mime.equals("text/calendar")) {
418 return context.getString(R.string.event);
419 } else if (mime.equals("application/epub+zip") || mime.equals("application/vnd.amazon.mobi8-ebook")) {
420 return context.getString(R.string.ebook);
421 } else if (mime.equals("application/gpx+xml")) {
422 return context.getString(R.string.gpx_track);
423 } else if (mime.equals("text/plain")) {
424 return context.getString(R.string.plain_text_document);
425 } else {
426 return mime;
427 }
428 }
429
430 public static String getMessageDisplayName(final Message message) {
431 final Conversational conversation = message.getConversation();
432 if (message.getStatus() == Message.STATUS_RECEIVED) {
433 final Contact contact = message.getContact();
434 if (conversation.getMode() == Conversation.MODE_MULTI) {
435 if (contact != null) {
436 return contact.getDisplayName();
437 } else {
438 return getDisplayedMucCounterpart(message.getCounterpart());
439 }
440 } else {
441 return contact != null ? contact.getDisplayName() : "";
442 }
443 } else {
444 if (conversation instanceof Conversation && conversation.getMode() == Conversation.MODE_MULTI) {
445 return ((Conversation) conversation).getMucOptions().getSelf().getName();
446 } else {
447 final Account account = conversation.getAccount();
448 final Jid jid = account.getJid();
449 final String displayName = account.getDisplayName();
450 if (Strings.isNullOrEmpty(displayName)) {
451 return jid.getLocal() != null ? jid.getLocal() : jid.getDomain().toString();
452 } else {
453 return displayName;
454 }
455
456 }
457 }
458 }
459
460 public static String getMessageHint(final Context context,final Conversation conversation) {
461 return switch (conversation.getNextEncryption()) {
462 case Message.ENCRYPTION_NONE -> {
463 if (Config.multipleEncryptionChoices()) {
464 yield context.getString(R.string.send_unencrypted_message);
465 } else {
466 yield context.getString(R.string.send_message_to_x, conversation.getName());
467 }
468 }
469 case Message.ENCRYPTION_AXOLOTL -> {
470 final AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
471 if (axolotlService != null && axolotlService.trustedSessionVerified(conversation)) {
472 yield context.getString(R.string.send_omemo_x509_message);
473 } else {
474 yield context.getString(R.string.send_encrypted_message);
475 }
476 }
477 default -> context.getString(R.string.send_encrypted_message);
478 };
479 }
480
481 public static String getDisplayedMucCounterpart(final Jid counterpart) {
482 if (counterpart == null) {
483 return "";
484 } else if (!counterpart.isBareJid()) {
485 return counterpart.getResource().trim();
486 } else {
487 return counterpart.toString().trim();
488 }
489 }
490
491 public static boolean receivedLocationQuestion(final Message message) {
492 if (message == null
493 || message.getStatus() != Message.STATUS_RECEIVED
494 || message.getType() != Message.TYPE_TEXT) {
495 return false;
496 }
497 final String body = Strings.nullToEmpty(message.getBody())
498 .trim()
499 .toLowerCase(Locale.getDefault())
500 .replace("?", "").replace("¿", "");
501 return LOCATION_QUESTIONS.contains(body);
502 }
503
504 public static void setStatus(final TextView textView, Presence.Status status) {
505 final @StringRes int text;
506 final @ColorRes int color =
507 switch (status) {
508 case CHAT -> {
509 text = R.string.presence_chat;
510 yield R.color.green_800;
511 }
512 case ONLINE -> {
513 text = R.string.presence_online;
514 yield R.color.green_800;
515 }
516 case AWAY -> {
517 text = R.string.presence_away;
518 yield R.color.amber_800;
519 }
520 case XA -> {
521 text = R.string.presence_xa;
522 yield R.color.orange_800;
523 }
524 case DND -> {
525 text = R.string.presence_dnd;
526 yield R.color.red_800;
527 }
528 default -> throw new IllegalStateException();
529 };
530 textView.setText(text);
531 textView.setBackgroundTintList(
532 ColorStateList.valueOf(
533 MaterialColors.harmonizeWithPrimary(
534 textView.getContext(),
535 ContextCompat.getColor(textView.getContext(), color))));
536 }
537
538 public static String filesizeToString(long size) {
539 if (size > (1.5 * 1024 * 1024)) {
540 return Math.round(size * 1f / (1024 * 1024)) + " MiB";
541 } else if (size >= 1024) {
542 return Math.round(size * 1f / 1024) + " KiB";
543 } else {
544 return size + " B";
545 }
546 }
547}