nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/storage/protocol/LegacyJsonIdentityKeyStore.java

   1 package org.asamk.signal.manager.storage.protocol;
   2
   3 import com.fasterxml.jackson.core.JsonParser;
   4 import com.fasterxml.jackson.databind.DeserializationContext;
   5 import com.fasterxml.jackson.databind.JsonDeserializer;
   6 import com.fasterxml.jackson.databind.JsonNode;
   7
   8 import org.asamk.signal.manager.api.TrustLevel;
   9 import org.asamk.signal.manager.storage.Utils;
  10 import org.asamk.signal.manager.storage.recipients.RecipientAddress;
  11 import org.signal.libsignal.protocol.IdentityKey;
  12 import org.signal.libsignal.protocol.IdentityKeyPair;
  13 import org.signal.libsignal.protocol.InvalidKeyException;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16 import org.whispersystems.signalservice.api.util.UuidUtil;
  17
  18 import java.io.IOException;
  19 import java.util.ArrayList;
  20 import java.util.Base64;
  21 import java.util.Date;
  22 import java.util.List;
  23 import java.util.stream.Collectors;
  24
  25 public class LegacyJsonIdentityKeyStore {
  26
  27     private final static Logger logger = LoggerFactory.getLogger(LegacyJsonIdentityKeyStore.class);
  28
  29     private final List<LegacyIdentityInfo> identities;
  30     private final IdentityKeyPair identityKeyPair;
  31     private final int localRegistrationId;
  32
  33     private LegacyJsonIdentityKeyStore(
  34             final List<LegacyIdentityInfo> identities, IdentityKeyPair identityKeyPair, int localRegistrationId
  35     ) {
  36         this.identities = identities;
  37         this.identityKeyPair = identityKeyPair;
  38         this.localRegistrationId = localRegistrationId;
  39     }
  40
  41     public List<LegacyIdentityInfo> getIdentities() {
  42         return identities.stream()
  43                 .map(LegacyIdentityInfo::getAddress)
  44                 .collect(Collectors.toSet())
  45                 .stream()
  46                 .map(this::getIdentity)
  47                 .toList();
  48     }
  49
  50     public IdentityKeyPair getIdentityKeyPair() {
  51         return identityKeyPair;
  52     }
  53
  54     public int getLocalRegistrationId() {
  55         return localRegistrationId;
  56     }
  57
  58     private LegacyIdentityInfo getIdentity(RecipientAddress address) {
  59         long maxDate = 0;
  60         LegacyIdentityInfo maxIdentity = null;
  61         for (var id : this.identities) {
  62             if (!id.getAddress().matches(address)) {
  63                 continue;
  64             }
  65
  66             final var time = id.getDateAdded().getTime();
  67             if (maxIdentity == null || maxDate <= time) {
  68                 maxDate = time;
  69                 maxIdentity = id;
  70             }
  71         }
  72         return maxIdentity;
  73     }
  74
  75     public static class JsonIdentityKeyStoreDeserializer extends JsonDeserializer<LegacyJsonIdentityKeyStore> {
  76
  77         @Override
  78         public LegacyJsonIdentityKeyStore deserialize(
  79                 JsonParser jsonParser, DeserializationContext deserializationContext
  80         ) throws IOException {
  81             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  82
  83             var localRegistrationId = node.get("registrationId").asInt();
  84             var identityKeyPair = new IdentityKeyPair(Base64.getDecoder().decode(node.get("identityKey").asText()));
  85
  86             var identities = new ArrayList<LegacyIdentityInfo>();
  87
  88             var trustedKeysNode = node.get("trustedKeys");
  89             if (trustedKeysNode.isArray()) {
  90                 for (var trustedKey : trustedKeysNode) {
  91                     var trustedKeyName = trustedKey.hasNonNull("name") ? trustedKey.get("name").asText() : null;
  92
  93                     if (UuidUtil.isUuid(trustedKeyName)) {
  94                         // Ignore identities that were incorrectly created with UUIDs as name
  95                         continue;
  96                     }
  97
  98                     var uuid = trustedKey.hasNonNull("uuid")
  99                             ? UuidUtil.parseOrNull(trustedKey.get("uuid").asText())
 100                             : null;
 101                     final var address = uuid == null
 102                             ? Utils.getRecipientAddressFromIdentifier(trustedKeyName)
 103                             : new RecipientAddress(uuid, trustedKeyName);
 104                     try {
 105                         var id = new IdentityKey(Base64.getDecoder().decode(trustedKey.get("identityKey").asText()), 0);
 106                         var trustLevel = trustedKey.hasNonNull("trustLevel") ? TrustLevel.fromInt(trustedKey.get(
 107                                 "trustLevel").asInt()) : TrustLevel.TRUSTED_UNVERIFIED;
 108                         var added = trustedKey.hasNonNull("addedTimestamp") ? new Date(trustedKey.get("addedTimestamp")
 109                                 .asLong()) : new Date();
 110                         identities.add(new LegacyIdentityInfo(address, id, trustLevel, added));
 111                     } catch (InvalidKeyException e) {
 112                         logger.warn("Error while decoding key for {}: {}", trustedKeyName, e.getMessage());
 113                     }
 114                 }
 115             }
 116
 117             return new LegacyJsonIdentityKeyStore(identities, identityKeyPair, localRegistrationId);
 118         }
 119     }
 120 }