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.NetworkResult;
  10 import org.whispersystems.signalservice.api.push.ServiceId;
  11 import org.whispersystems.signalservice.api.util.StreamDetails;
  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.function.Function;
  29 import java.util.stream.Collectors;
  30 import java.util.stream.Stream;
  31 import java.util.stream.StreamSupport;
  32
  33 public class Utils {
  34
  35     private static final Logger logger = LoggerFactory.getLogger(Utils.class);
  36
  37     public static Pair<StreamDetails, Optional<String>> createStreamDetailsFromDataURI(final String dataURI) {
  38         final DataURI uri = DataURI.of(dataURI);
  39
  40         return new Pair<>(new StreamDetails(new ByteArrayInputStream(uri.data()), uri.mediaType(), uri.data().length),
  41                 Optional.ofNullable(uri.parameter().get("filename")));
  42     }
  43
  44     public static StreamDetails createStreamDetailsFromFile(final File file) throws IOException {
  45         final InputStream stream = new FileInputStream(file);
  46         final var size = file.length();
  47         final var mime = MimeUtils.getFileMimeType(file).orElse(MimeUtils.OCTET_STREAM);
  48         return new StreamDetails(stream, mime, size);
  49     }
  50
  51     public static Pair<StreamDetails, Optional<String>> createStreamDetails(final String value) throws IOException {
  52         try {
  53             return createStreamDetailsFromDataURI(value);
  54         } catch (final IllegalArgumentException e) {
  55             final File f = new File(value);
  56
  57             return new Pair<>(createStreamDetailsFromFile(f), Optional.of(f.getName()));
  58         }
  59     }
  60
  61     public static Fingerprint computeSafetyNumberForNumber(
  62             String ownNumber,
  63             IdentityKey ownIdentityKey,
  64             String theirNumber,
  65             IdentityKey theirIdentityKey
  66     ) {
  67         // Version 1: E164 user
  68         final var version = 1;
  69         final var ownId = ownNumber.getBytes(StandardCharsets.UTF_8);
  70         final var theirId = theirNumber.getBytes(StandardCharsets.UTF_8);
  71
  72         return getFingerprint(version, ownId, ownIdentityKey, theirId, theirIdentityKey);
  73     }
  74
  75     public static Fingerprint computeSafetyNumberForUuid(
  76             ServiceId ownServiceId,
  77             IdentityKey ownIdentityKey,
  78             ServiceId theirServiceId,
  79             IdentityKey theirIdentityKey
  80     ) {
  81         // Version 2: UUID user
  82         final var version = 2;
  83         final var ownId = ownServiceId.toByteArray();
  84         final var theirId = theirServiceId.toByteArray();
  85
  86         return getFingerprint(version, ownId, ownIdentityKey, theirId, theirIdentityKey);
  87     }
  88
  89     private static Fingerprint getFingerprint(
  90             final int version,
  91             final byte[] ownId,
  92             final IdentityKey ownIdentityKey,
  93             final byte[] theirId,
  94             final IdentityKey theirIdentityKey
  95     ) {
  96         return new NumericFingerprintGenerator(5200).createFor(version,
  97                 ownId,
  98                 ownIdentityKey,
  99                 theirId,
 100                 theirIdentityKey);
 101     }
 102
 103     public static Locale getDefaultLocale(Locale fallback) {
 104         final var locale = Locale.getDefault();
 105         if (locale == null) {
 106             logger.debug("No default locale found, using fallback: {}", fallback);
 107             return fallback;
 108         }
 109         final var localeString = locale.getLanguage() + "-" + locale.getCountry();
 110         try {
 111             Locale.LanguageRange.parse(localeString);
 112         } catch (IllegalArgumentException e) {
 113             logger.debug("Invalid locale '{}', using fallback: {}", locale, fallback);
 114             return fallback;
 115         }
 116
 117         logger.trace("Using default locale: {} ({})", locale, localeString);
 118         return locale;
 119     }
 120
 121     public static <L, R, T> Stream<T> zip(Stream<L> leftStream, Stream<R> rightStream, BiFunction<L, R, T> combiner) {
 122         Spliterator<L> lefts = leftStream.spliterator();
 123         Spliterator<R> rights = rightStream.spliterator();
 124         return StreamSupport.stream(new Spliterators.AbstractSpliterator<>(Long.min(lefts.estimateSize(),
 125                 rights.estimateSize()), lefts.characteristics() & rights.characteristics()) {
 126             @Override
 127             public boolean tryAdvance(Consumer<? super T> action) {
 128                 return lefts.tryAdvance(left -> rights.tryAdvance(right -> action.accept(combiner.apply(left, right))));
 129             }
 130         }, leftStream.isParallel() || rightStream.isParallel());
 131     }
 132
 133     public static <OK, NK, V> Map<NK, V> mapKeys(Map<OK, V> map, Function<OK, NK> keyMapper) {
 134         return map.entrySet().stream().collect(Collectors.toMap(e -> keyMapper.apply(e.getKey()), Map.Entry::getValue));
 135     }
 136
 137     public static Map<String, String> getQueryMap(String query) {
 138         var params = query.split("&");
 139         var map = new HashMap<String, String>();
 140         for (var param : params) {
 141             final var paramParts = param.split("=");
 142             var name = URLDecoder.decode(paramParts[0], StandardCharsets.UTF_8);
 143             var value = paramParts.length == 1 ? null : URLDecoder.decode(paramParts[1], StandardCharsets.UTF_8);
 144             map.put(name, value);
 145         }
 146         return map;
 147     }
 148
 149     public static <T> T handleResponseException(final NetworkResult<T> response) throws IOException {
 150         final var throwableOptional = response.getCause();
 151         if (throwableOptional != null) {
 152             if (throwableOptional instanceof IOException ioException) {
 153                 throw ioException;
 154             } else {
 155                 throw new IOException(throwableOptional);
 156             }
 157         }
 158         return response.successOrThrow();
 159     }
 160 }