nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/storage/groups/JsonGroupStore.java

   1 package org.asamk.signal.storage.groups;
   2
   3 import com.fasterxml.jackson.annotation.JsonProperty;
   4 import com.fasterxml.jackson.core.JsonGenerator;
   5 import com.fasterxml.jackson.core.JsonParser;
   6 import com.fasterxml.jackson.databind.*;
   7 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
   8 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
   9 import org.whispersystems.signalservice.internal.util.Base64;
  10
  11 import java.io.IOException;
  12 import java.util.ArrayList;
  13 import java.util.HashMap;
  14 import java.util.List;
  15 import java.util.Map;
  16
  17 public class JsonGroupStore {
  18
  19     private static final ObjectMapper jsonProcessor = new ObjectMapper();
  20
  21     public static List<GroupInfo> groupsWithLegacyAvatarId = new ArrayList<>();
  22
  23     @JsonProperty("groups")
  24     @JsonSerialize(using = JsonGroupStore.MapToListSerializer.class)
  25     @JsonDeserialize(using = JsonGroupStore.GroupsDeserializer.class)
  26     private Map<String, GroupInfo> groups = new HashMap<>();
  27
  28     public void updateGroup(GroupInfo group) {
  29         groups.put(Base64.encodeBytes(group.groupId), group);
  30     }
  31
  32     public GroupInfo getGroup(byte[] groupId) {
  33         return groups.get(Base64.encodeBytes(groupId));
  34     }
  35
  36     public List<GroupInfo> getGroups() {
  37         return new ArrayList<>(groups.values());
  38     }
  39
  40     private static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  41
  42         @Override
  43         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  44             jgen.writeObject(value.values());
  45         }
  46     }
  47
  48     private static class GroupsDeserializer extends JsonDeserializer<Map<String, GroupInfo>> {
  49
  50         @Override
  51         public Map<String, GroupInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  52             Map<String, GroupInfo> groups = new HashMap<>();
  53             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  54             for (JsonNode n : node) {
  55                 GroupInfo g = jsonProcessor.treeToValue(n, GroupInfo.class);
  56                 // Check if a legacy avatarId exists
  57                 if (g.getAvatarId() != 0) {
  58                     groupsWithLegacyAvatarId.add(g);
  59                 }
  60                 groups.put(Base64.encodeBytes(g.groupId), g);
  61             }
  62
  63             return groups;
  64         }
  65     }
  66 }