nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/util/Utils.java

   1 package org.asamk.signal.manager.util;
   2
   3 import org.asamk.signal.manager.api.Pair;
   4 import org.signal.libsignal.protocol.IdentityKey;
   5 import org.signal.libsignal.protocol.fingerprint.Fingerprint;
   6 import org.signal.libsignal.protocol.fingerprint.NumericFingerprintGenerator;
   7 import org.slf4j.Logger;
   8 import org.slf4j.LoggerFactory;
   9 import org.whispersystems.signalservice.api.push.ServiceId;
  10 import org.whispersystems.signalservice.api.util.StreamDetails;
  11 import org.whispersystems.signalservice.internal.ServiceResponse;
  12
  13 import java.io.ByteArrayInputStream;
  14 import java.io.File;
  15 import java.io.FileInputStream;
  16 import java.io.IOException;
  17 import java.io.InputStream;
  18 import java.net.URLDecoder;
  19 import java.nio.charset.StandardCharsets;
  20 import java.util.HashMap;
  21 import java.util.Locale;
  22 import java.util.Map;
  23 import java.util.Optional;
  24 import java.util.Spliterator;
  25 import java.util.Spliterators;
  26 import java.util.function.BiFunction;
  27 import java.util.function.Consumer;
  28 import java.util.stream.Stream;
  29 import java.util.stream.StreamSupport;
  30
  31 public class Utils {
  32
  33     private final static Logger logger = LoggerFactory.getLogger(Utils.class);
  34
  35     public static Pair<StreamDetails, Optional<String>> createStreamDetailsFromDataURI(final String dataURI) {
  36         final DataURI uri = DataURI.of(dataURI);
  37
  38         return new Pair<>(new StreamDetails(new ByteArrayInputStream(uri.data()), uri.mediaType(), uri.data().length),
  39                 Optional.ofNullable(uri.parameter().get("filename")));
  40     }
  41
  42     public static StreamDetails createStreamDetailsFromFile(final File file) throws IOException {
  43         final InputStream stream = new FileInputStream(file);
  44         final var size = file.length();
  45         final var mime = MimeUtils.getFileMimeType(file).orElse(MimeUtils.OCTET_STREAM);
  46         return new StreamDetails(stream, mime, size);
  47     }
  48
  49     public static Pair<StreamDetails, Optional<String>> createStreamDetails(final String value) throws IOException {
  50         try {
  51             return createStreamDetailsFromDataURI(value);
  52         } catch (final IllegalArgumentException e) {
  53             final File f = new File(value);
  54
  55             return new Pair<>(createStreamDetailsFromFile(f), Optional.of(f.getName()));
  56         }
  57     }
  58
  59     public static Fingerprint computeSafetyNumberForNumber(
  60             String ownNumber, IdentityKey ownIdentityKey, String theirNumber, IdentityKey theirIdentityKey
  61     ) {
  62         // Version 1: E164 user
  63         final var version = 1;
  64         final var ownId = ownNumber.getBytes(StandardCharsets.UTF_8);
  65         final var theirId = theirNumber.getBytes(StandardCharsets.UTF_8);
  66
  67         return getFingerprint(version, ownId, ownIdentityKey, theirId, theirIdentityKey);
  68     }
  69
  70     public static Fingerprint computeSafetyNumberForUuid(
  71             ServiceId ownServiceId, IdentityKey ownIdentityKey, ServiceId theirServiceId, IdentityKey theirIdentityKey
  72     ) {
  73         // Version 2: UUID user
  74         final var version = 2;
  75         final var ownId = ownServiceId.toByteArray();
  76         final var theirId = theirServiceId.toByteArray();
  77
  78         return getFingerprint(version, ownId, ownIdentityKey, theirId, theirIdentityKey);
  79     }
  80
  81     private static Fingerprint getFingerprint(
  82             final int version,
  83             final byte[] ownId,
  84             final IdentityKey ownIdentityKey,
  85             final byte[] theirId,
  86             final IdentityKey theirIdentityKey
  87     ) {
  88         return new NumericFingerprintGenerator(5200).createFor(version,
  89                 ownId,
  90                 ownIdentityKey,
  91                 theirId,
  92                 theirIdentityKey);
  93     }
  94
  95     public static Locale getDefaultLocale(Locale fallback) {
  96         final var locale = Locale.getDefault();
  97         if (locale == null) {
  98             logger.debug("No default locale found, using fallback: {}", fallback);
  99             return fallback;
 100         }
 101         final var localeString = locale.getLanguage() + "-" + locale.getCountry();
 102         try {
 103             Locale.LanguageRange.parse(localeString);
 104         } catch (IllegalArgumentException e) {
 105             logger.debug("Invalid locale '{}', using fallback: {}", locale, fallback);
 106             return fallback;
 107         }
 108
 109         logger.trace("Using default locale: {} ({})", locale, localeString);
 110         return locale;
 111     }
 112
 113     public static <L, R, T> Stream<T> zip(Stream<L> leftStream, Stream<R> rightStream, BiFunction<L, R, T> combiner) {
 114         Spliterator<L> lefts = leftStream.spliterator();
 115         Spliterator<R> rights = rightStream.spliterator();
 116         return StreamSupport.stream(new Spliterators.AbstractSpliterator<>(Long.min(lefts.estimateSize(),
 117                 rights.estimateSize()), lefts.characteristics() & rights.characteristics()) {
 118             @Override
 119             public boolean tryAdvance(Consumer<? super T> action) {
 120                 return lefts.tryAdvance(left -> rights.tryAdvance(right -> action.accept(combiner.apply(left, right))));
 121             }
 122         }, leftStream.isParallel() || rightStream.isParallel());
 123     }
 124
 125     public static Map<String, String> getQueryMap(String query) {
 126         var params = query.split("&");
 127         var map = new HashMap<String, String>();
 128         for (var param : params) {
 129             final var paramParts = param.split("=");
 130             var name = URLDecoder.decode(paramParts[0], StandardCharsets.UTF_8);
 131             var value = paramParts.length == 1 ? null : URLDecoder.decode(paramParts[1], StandardCharsets.UTF_8);
 132             map.put(name, value);
 133         }
 134         return map;
 135     }
 136
 137     public static <T> T handleResponseException(final ServiceResponse<T> response) throws IOException {
 138         final var throwableOptional = response.getExecutionError().or(response::getApplicationError);
 139         if (throwableOptional.isPresent()) {
 140             if (throwableOptional.get() instanceof IOException) {
 141                 throw (IOException) throwableOptional.get();
 142             } else {
 143                 throw new IOException(throwableOptional.get());
 144             }
 145         }
 146         return response.getResult().orElse(null);
 147     }
 148 }