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         GroupInfo g = groups.get(Base64.encodeBytes(groupId));
  34         return g;
  35     }
  36
  37     public List<GroupInfo> getGroups() {
  38         return new ArrayList<>(groups.values());
  39     }
  40
  41     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  42
  43         @Override
  44         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  45             jgen.writeObject(value.values());
  46         }
  47     }
  48
  49     public static class GroupsDeserializer extends JsonDeserializer<Map<String, GroupInfo>> {
  50
  51         @Override
  52         public Map<String, GroupInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  53             Map<String, GroupInfo> groups = new HashMap<>();
  54             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  55             for (JsonNode n : node) {
  56                 GroupInfo g = jsonProcessor.treeToValue(n, GroupInfo.class);
  57                 // Check if a legacy avatarId exists
  58                 if (g.getAvatarId() != 0) {
  59                     groupsWithLegacyAvatarId.add(g);
  60                 }
  61                 groups.put(Base64.encodeBytes(g.groupId), g);
  62             }
  63
  64             return groups;
  65         }
  66     }
  67 }