conversations-classic/src/main/java/eu/siacs/conversations/utils/UIHelper.java

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package eu.siacs.conversations.utils;
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import android.content.Context;
import android.text.SpannableStringBuilder;
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import android.text.format.DateFormat;
import android.text.format.DateUtils;
import android.util.Pair;
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import androidx.annotation.ColorInt;
import com.google.common.base.Strings;
import java.math.BigInteger;
import java.security.MessageDigest;
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import java.util.Arrays;
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import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.crypto.axolotl.AxolotlService;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Conversational;
import eu.siacs.conversations.entities.ListItem;
import eu.siacs.conversations.entities.Message;
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import eu.siacs.conversations.entities.MucOptions;
import eu.siacs.conversations.entities.Presence;
import eu.siacs.conversations.entities.RtpSessionStatus;
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import eu.siacs.conversations.entities.Transferable;
import eu.siacs.conversations.services.ExportBackupService;
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import eu.siacs.conversations.xmpp.Jid;
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public class UIHelper {
private static final int[] UNSAFE_COLORS = {
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0xFFF44336, //red 500
0xFFE53935, //red 600
0xFFD32F2F, //red 700
0xFFC62828, //red 800
0xFFEF6C00, //orange 800
0xFFF4511E, //deep orange 600
0xFFE64A19, //deep orange 700
0xFFD84315, //deep orange 800,
};
private static final int[] SAFE_COLORS = {
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0xFFE91E63, //pink 500
0xFFD81B60, //pink 600
0xFFC2185B, //pink 700
0xFFAD1457, //pink 800
0xFF9C27B0, //purple 500
0xFF8E24AA, //purple 600
0xFF7B1FA2, //purple 700
0xFF6A1B9A, //purple 800
0xFF673AB7, //deep purple 500,
0xFF5E35B1, //deep purple 600
0xFF512DA8, //deep purple 700
0xFF4527A0, //deep purple 800,
0xFF3F51B5, //indigo 500,
0xFF3949AB,//indigo 600
0xFF303F9F,//indigo 700
0xFF283593, //indigo 800
0xFF2196F3, //blue 500
0xFF1E88E5, //blue 600
0xFF1976D2, //blue 700
0xFF1565C0, //blue 800
0xFF03A9F4, //light blue 500
0xFF039BE5, //light blue 600
0xFF0288D1, //light blue 700
0xFF0277BD, //light blue 800
0xFF00BCD4, //cyan 500
0xFF00ACC1, //cyan 600
0xFF0097A7, //cyan 700
0xFF00838F, //cyan 800
0xFF009688, //teal 500,
0xFF00897B, //teal 600
0xFF00796B, //teal 700
0xFF00695C, //teal 800,
//0xFF558B2F, //light green 800
//0xFFC0CA33, //lime 600
0xFF9E9D24, //lime 800
0xFF795548, //brown 500,
//0xFF4E342E, //brown 800
0xFF607D8B, //blue grey 500,
//0xFF37474F //blue grey 800
};
private static final int[] COLORS;
static {
COLORS = Arrays.copyOf(SAFE_COLORS, SAFE_COLORS.length + UNSAFE_COLORS.length);
System.arraycopy(UNSAFE_COLORS, 0, COLORS, SAFE_COLORS.length, UNSAFE_COLORS.length);
}
private static final List<String> LOCATION_QUESTIONS = Arrays.asList(
"where are you", //en
"where are you now", //en
"where are you right now", //en
"whats your 20", //en
"what is your 20", //en
"what's your 20", //en
"whats your twenty", //en
"what is your twenty", //en
"what's your twenty", //en
"wo bist du", //de
"wo bist du jetzt", //de
"wo bist du gerade", //de
"wo seid ihr", //de
"wo seid ihr jetzt", //de
"wo seid ihr gerade", //de
"dónde estás", //es
"donde estas" //es
);
private static final List<Character> PUNCTIONATION = Arrays.asList('.', ',', '?', '!', ';', ':');
private static final int SHORT_DATE_FLAGS = DateUtils.FORMAT_SHOW_DATE
| DateUtils.FORMAT_NO_YEAR | DateUtils.FORMAT_ABBREV_ALL;
private static final int FULL_DATE_FLAGS = DateUtils.FORMAT_SHOW_TIME
| DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_SHOW_DATE;
public static String readableTimeDifference(Context context, long time) {
return readableTimeDifference(context, time, false);
}
public static String readableTimeDifferenceFull(Context context, long time) {
return readableTimeDifference(context, time, true);
}
private static String readableTimeDifference(Context context, long time,
boolean fullDate) {
if (time == 0) {
return context.getString(R.string.just_now);
}
Date date = new Date(time);
long difference = (System.currentTimeMillis() - time) / 1000;
if (difference < 60) {
return context.getString(R.string.just_now);
} else if (difference < 60 * 2) {
return context.getString(R.string.minute_ago);
} else if (difference < 60 * 15) {
return context.getString(R.string.minutes_ago, Math.round(difference / 60.0));
} else if (today(date)) {
java.text.DateFormat df = DateFormat.getTimeFormat(context);
return df.format(date);
} else {
if (fullDate) {
return DateUtils.formatDateTime(context, date.getTime(),
FULL_DATE_FLAGS);
} else {
return DateUtils.formatDateTime(context, date.getTime(),
SHORT_DATE_FLAGS);
}
}
}
private static boolean today(Date date) {
return sameDay(date, new Date(System.currentTimeMillis()));
}
public static boolean today(long date) {
return sameDay(date, System.currentTimeMillis());
}
public static boolean yesterday(long date) {
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.add(Calendar.DAY_OF_YEAR, -1);
cal2.setTime(new Date(date));
return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
&& cal1.get(Calendar.DAY_OF_YEAR) == cal2
.get(Calendar.DAY_OF_YEAR);
}
public static boolean sameDay(long a, long b) {
return sameDay(new Date(a), new Date(b));
}
private static boolean sameDay(Date a, Date b) {
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(a);
cal2.setTime(b);
return cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR)
&& cal1.get(Calendar.DAY_OF_YEAR) == cal2
.get(Calendar.DAY_OF_YEAR);
}
public static String lastseen(Context context, boolean active, long time) {
long difference = (System.currentTimeMillis() - time) / 1000;
if (active) {
return context.getString(R.string.online_right_now);
} else if (difference < 60) {
return context.getString(R.string.last_seen_now);
} else if (difference < 60 * 2) {
return context.getString(R.string.last_seen_min);
} else if (difference < 60 * 60) {
return context.getString(R.string.last_seen_mins, Math.round(difference / 60.0));
} else if (difference < 60 * 60 * 2) {
return context.getString(R.string.last_seen_hour);
} else if (difference < 60 * 60 * 24) {
return context.getString(R.string.last_seen_hours,
Math.round(difference / (60.0 * 60.0)));
} else if (difference < 60 * 60 * 48) {
return context.getString(R.string.last_seen_day);
} else {
return context.getString(R.string.last_seen_days,
Math.round(difference / (60.0 * 60.0 * 24.0)));
}
}
public static int getColorForName(String name) {
return getColorForName(name, false);
}
public static int getColorForName(String name, boolean safe) {
if (Config.XEP_0392) {
return XEP0392Helper.rgbFromNick(name);
}
if (name == null || name.isEmpty()) {
return 0xFF202020;
}
if (safe) {
return SAFE_COLORS[(int) (getLongForName(name) % SAFE_COLORS.length)];
} else {
return COLORS[(int) (getLongForName(name) % COLORS.length)];
}
}
private static long getLongForName(String name) {
try {
final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
return Math.abs(new BigInteger(messageDigest.digest(name.getBytes())).longValue());
} catch (Exception e) {
return 0;
}
}
public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message) {
return getMessagePreview(context, message, 0);
}
public static Pair<CharSequence, Boolean> getMessagePreview(final Context context, final Message message, @ColorInt int textColor) {
final Transferable d = message.getTransferable();
if (d != null) {
switch (d.getStatus()) {
case Transferable.STATUS_CHECKING:
return new Pair<>(context.getString(R.string.checking_x,
getFileDescriptionString(context, message)), true);
case Transferable.STATUS_DOWNLOADING:
return new Pair<>(context.getString(R.string.receiving_x_file,
getFileDescriptionString(context, message),
d.getProgress()), true);
case Transferable.STATUS_OFFER:
case Transferable.STATUS_OFFER_CHECK_FILESIZE:
return new Pair<>(context.getString(R.string.x_file_offered_for_download,
getFileDescriptionString(context, message)), true);
case Transferable.STATUS_FAILED:
return new Pair<>(context.getString(R.string.file_transmission_failed), true);
case Transferable.STATUS_CANCELLED:
return new Pair<>(context.getString(R.string.file_transmission_cancelled), true);
case Transferable.STATUS_UPLOADING:
if (message.getStatus() == Message.STATUS_OFFERED) {
return new Pair<>(context.getString(R.string.offering_x_file,
getFileDescriptionString(context, message)), true);
} else {
return new Pair<>(context.getString(R.string.sending_x_file,
getFileDescriptionString(context, message)), true);
}
default:
return new Pair<>("", false);
}
} else if (message.isFileOrImage() && message.isDeleted()) {
return new Pair<>(context.getString(R.string.file_deleted), true);
} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
return new Pair<>(context.getString(R.string.pgp_message), true);
} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTION_FAILED) {
return new Pair<>(context.getString(R.string.decryption_failed), true);
} else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE) {
return new Pair<>(context.getString(R.string.not_encrypted_for_this_device), true);
} else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
return new Pair<>(context.getString(R.string.omemo_decryption_failed), true);
} else if (message.isFileOrImage()) {
return new Pair<>(getFileDescriptionString(context, message), true);
} else if (message.getType() == Message.TYPE_RTP_SESSION) {
RtpSessionStatus rtpSessionStatus = RtpSessionStatus.of(message.getBody());
final boolean received = message.getStatus() == Message.STATUS_RECEIVED;
if (!rtpSessionStatus.successful && received) {
return new Pair<>(context.getString(R.string.missed_call), true);
} else {
return new Pair<>(context.getString(received ? R.string.incoming_call : R.string.outgoing_call), true);
}
} else {
final String body = MessageUtils.filterLtrRtl(message.getBody());
if (body.startsWith(Message.ME_COMMAND)) {
return new Pair<>(body.replaceAll("^" + Message.ME_COMMAND,
UIHelper.getMessageDisplayName(message) + " "), false);
} else if (message.isGeoUri()) {
return new Pair<>(context.getString(R.string.location), true);
} else if (message.treatAsDownloadable() || MessageUtils.unInitiatedButKnownSize(message)) {
return new Pair<>(context.getString(R.string.x_file_offered_for_download,
getFileDescriptionString(context, message)), true);
} else {
SpannableStringBuilder styledBody = new SpannableStringBuilder(body);
if (textColor != 0) {
StylingHelper.format(styledBody, 0, styledBody.length() - 1, textColor);
}
SpannableStringBuilder builder = new SpannableStringBuilder();
for (CharSequence l : CharSequenceUtils.split(styledBody, '\n')) {
if (l.length() > 0) {
if (l.toString().equals("```")) {
continue;
}
char first = l.charAt(0);
if ((first != '>' || !isPositionFollowedByQuoteableCharacter(l, 0)) && first != '\u00bb') {
CharSequence line = CharSequenceUtils.trim(l);
if (line.length() == 0) {
continue;
}
char last = line.charAt(line.length() - 1);
if (builder.length() != 0) {
builder.append(' ');
}
builder.append(line);
if (!PUNCTIONATION.contains(last)) {
break;
}
}
}
}
if (builder.length() == 0) {
builder.append(body.trim());
}
return new Pair<>(builder, false);
}
}
}
public static boolean isLastLineQuote(String body) {
if (body.endsWith("\n")) {
return false;
}
String[] lines = body.split("\n");
if (lines.length == 0) {
return false;
}
String line = lines[lines.length - 1];
if (line.isEmpty()) {
return false;
}
char first = line.charAt(0);
return first == '>' && isPositionFollowedByQuoteableCharacter(line, 0) || first == '\u00bb';
}
public static CharSequence shorten(CharSequence input) {
return input.length() > 256 ? StylingHelper.subSequence(input, 0, 256) : input;
}
public static boolean isPositionFollowedByQuoteableCharacter(CharSequence body, int pos) {
return !isPositionFollowedByNumber(body, pos)
&& !isPositionFollowedByEmoticon(body, pos)
&& !isPositionFollowedByEquals(body, pos);
}
private static boolean isPositionFollowedByNumber(CharSequence body, int pos) {
boolean previousWasNumber = false;
for (int i = pos + 1; i < body.length(); i++) {
char c = body.charAt(i);
if (Character.isDigit(body.charAt(i))) {
previousWasNumber = true;
} else if (previousWasNumber && (c == '.' || c == ',')) {
previousWasNumber = false;
} else {
return (Character.isWhitespace(c) || c == '%' || c == '+') && previousWasNumber;
}
}
return previousWasNumber;
}
private static boolean isPositionFollowedByEquals(CharSequence body, int pos) {
return body.length() > pos + 1 && body.charAt(pos + 1) == '=';
}
private static boolean isPositionFollowedByEmoticon(CharSequence body, int pos) {
if (body.length() <= pos + 1) {
return false;
} else {
final char first = body.charAt(pos + 1);
return first == ';'
|| first == ':'
|| closingBeforeWhitespace(body, pos + 1);
}
}
private static boolean closingBeforeWhitespace(CharSequence body, int pos) {
for (int i = pos; i < body.length(); ++i) {
final char c = body.charAt(i);
if (Character.isWhitespace(c)) {
return false;
} else if (c == '<' || c == '>') {
return body.length() == i + 1 || Character.isWhitespace(body.charAt(i + 1));
}
}
return false;
}
public static boolean isPositionFollowedByQuote(CharSequence body, int pos) {
if (body.length() <= pos + 1 || Character.isWhitespace(body.charAt(pos + 1))) {
return false;
}
boolean previousWasWhitespace = false;
for (int i = pos + 1; i < body.length(); i++) {
char c = body.charAt(i);
if (c == '\n' || c == '»') {
return false;
} else if (c == '«' && !previousWasWhitespace) {
return true;
} else {
previousWasWhitespace = Character.isWhitespace(c);
}
}
return false;
}
public static String getDisplayName(MucOptions.User user) {
Contact contact = user.getContact();
if (contact != null) {
return contact.getDisplayName();
} else {
final String name = user.getName();
if (name != null) {
return name;
}
final Jid realJid = user.getRealJid();
if (realJid != null) {
return JidHelper.localPartOrFallback(realJid);
}
return null;
}
}
public static String concatNames(List<MucOptions.User> users) {
return concatNames(users, users.size());
}
public static String concatNames(List<MucOptions.User> users, int max) {
StringBuilder builder = new StringBuilder();
final boolean shortNames = users.size() >= 3;
for (int i = 0; i < Math.min(users.size(), max); ++i) {
if (builder.length() != 0) {
builder.append(", ");
}
final String name = UIHelper.getDisplayName(users.get(i));
if (name != null) {
builder.append(shortNames ? name.split("\\s+")[0] : name);
}
}
return builder.toString();
}
public static String getFileDescriptionString(final Context context, final Message message) {
if (message.getType() == Message.TYPE_IMAGE) {
return context.getString(R.string.image);
}
final String mime = message.getMimeType();
if (mime == null) {
return context.getString(R.string.file);
} else if (mime.startsWith("audio/")) {
return context.getString(R.string.audio);
} else if (mime.startsWith("video/")) {
return context.getString(R.string.video);
} else if (mime.equals("image/gif")) {
return context.getString(R.string.gif);
} else if (mime.startsWith("image/")) {
return context.getString(R.string.image);
} else if (mime.contains("pdf")) {
return context.getString(R.string.pdf_document);
} else if (mime.equals("application/vnd.android.package-archive")) {
return context.getString(R.string.apk);
} else if (mime.equals(ExportBackupService.MIME_TYPE)) {
return context.getString(R.string.conversations_backup);
} else if (mime.contains("vcard")) {
return context.getString(R.string.vcard);
} else if (mime.equals("text/x-vcalendar") || mime.equals("text/calendar")) {
return context.getString(R.string.event);
} else if (mime.equals("application/epub+zip") || mime.equals("application/vnd.amazon.mobi8-ebook")) {
return context.getString(R.string.ebook);
} else if (mime.equals("application/gpx+xml")) {
return context.getString(R.string.gpx_track);
} else {
return mime;
}
}
public static String getMessageDisplayName(final Message message) {
final Conversational conversation = message.getConversation();
if (message.getStatus() == Message.STATUS_RECEIVED) {
final Contact contact = message.getContact();
if (conversation.getMode() == Conversation.MODE_MULTI) {
if (contact != null) {
return contact.getDisplayName();
} else {
return getDisplayedMucCounterpart(message.getCounterpart());
}
} else {
return contact != null ? contact.getDisplayName() : "";
}
} else {
if (conversation instanceof Conversation && conversation.getMode() == Conversation.MODE_MULTI) {
return ((Conversation) conversation).getMucOptions().getSelf().getName();
} else {
final Account account = conversation.getAccount();
final Jid jid = account.getJid();
final String displayName = account.getDisplayName();
if (Strings.isNullOrEmpty(displayName)) {
return jid.getLocal() != null ? jid.getLocal() : jid.getDomain().toString();
} else {
return displayName;
}
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}
}
}
public static String getMessageHint(Context context, Conversation conversation) {
switch (conversation.getNextEncryption()) {
case Message.ENCRYPTION_NONE:
if (Config.multipleEncryptionChoices()) {
return context.getString(R.string.send_unencrypted_message);
} else {
return context.getString(R.string.send_message_to_x, conversation.getName());
}
case Message.ENCRYPTION_AXOLOTL:
AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
if (axolotlService != null && axolotlService.trustedSessionVerified(conversation)) {
return context.getString(R.string.send_omemo_x509_message);
} else {
return context.getString(R.string.send_omemo_message);
}
case Message.ENCRYPTION_PGP:
return context.getString(R.string.send_pgp_message);
default:
return "";
}
}
public static String getDisplayedMucCounterpart(final Jid counterpart) {
if (counterpart == null) {
return "";
} else if (!counterpart.isBareJid()) {
return counterpart.getResource().trim();
} else {
return counterpart.toString().trim();
}
}
public static boolean receivedLocationQuestion(final Message message) {
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if (message == null
|| message.getStatus() != Message.STATUS_RECEIVED
|| message.getType() != Message.TYPE_TEXT) {
return false;
}
final String body = Strings.nullToEmpty(message.getBody())
.trim()
.toLowerCase(Locale.getDefault())
.replace("?", "").replace("¿", "");
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return LOCATION_QUESTIONS.contains(body);
}
public static ListItem.Tag getTagForStatus(Context context, Presence.Status status) {
switch (status) {
case CHAT:
return new ListItem.Tag(context.getString(R.string.presence_chat), 0xff259b24);
case AWAY:
return new ListItem.Tag(context.getString(R.string.presence_away), 0xffff9800);
case XA:
return new ListItem.Tag(context.getString(R.string.presence_xa), 0xfff44336);
case DND:
return new ListItem.Tag(context.getString(R.string.presence_dnd), 0xfff44336);
default:
return new ListItem.Tag(context.getString(R.string.presence_online), 0xff259b24);
}
}
public static String filesizeToString(long size) {
if (size > (1.5 * 1024 * 1024)) {
return Math.round(size * 1f / (1024 * 1024)) + " MiB";
} else if (size >= 1024) {
return Math.round(size * 1f / 1024) + " KiB";
} else {
return size + " B";
}
}
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}