1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
package de.cowtipper.cowlection.util;
import com.google.gson.*;
import com.mojang.util.UUIDTypeAdapter;
import de.cowtipper.cowlection.chesttracker.data.LowestBinsCache;
import de.cowtipper.cowlection.data.HyPlayerData;
import net.minecraft.nbt.*;
import net.minecraftforge.common.util.Constants;
import org.apache.commons.codec.binary.Base64;
import java.io.Reader;
import java.lang.reflect.Type;
import java.time.DateTimeException;
import java.time.Instant;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Map;
import java.util.TreeMap;
import java.util.UUID;
public final class GsonUtils {
private static final Gson gson = new GsonBuilder()
.registerTypeAdapter(UUID.class, new UUIDTypeAdapter())
.registerTypeAdapter(HyPlayerData.class, new HyPlayerDataDeserializer())
.registerTypeAdapter(LowestBinsCache.class, new LowestBinsDeserializer())
.create();
private static final Gson gsonPrettyPrinter = new GsonBuilder()
.registerTypeAdapter(UUID.class, new UUIDTypeAdapter())
.setPrettyPrinting().create();
private GsonUtils() {
}
public static <T> T fromJson(String json, Type clazz) {
return gson.fromJson(json, clazz);
}
public static <T> T fromJson(Reader json, Class<T> clazz) {
return gson.fromJson(json, clazz);
}
public static String toJson(Object object) {
return toJson(object, false);
}
public static String toJson(Object object, boolean sort) {
if (object instanceof NBTBase) {
JsonElement jsonElement = nbtToJson((NBTBase) object);
if (sort && (jsonElement instanceof JsonObject || jsonElement instanceof JsonArray)) {
jsonElement = sortJsonElement(jsonElement);
}
return gsonPrettyPrinter.toJson(jsonElement);
} else {
return gson.toJson(object);
}
}
private static JsonElement sortJsonElement(JsonElement jsonElement) {
if (jsonElement instanceof JsonArray) {
// sort each element of array
JsonArray sortedJsonArray = new JsonArray();
for (JsonElement arrayElement : (JsonArray) jsonElement) {
sortedJsonArray.add(sortJsonElement(arrayElement));
}
return sortedJsonArray;
} else if (jsonElement instanceof JsonObject) {
// sort json by key
TreeMap<String, JsonElement> sortedJsonObject = new TreeMap<>(String::compareToIgnoreCase);
for (Map.Entry<String, JsonElement> jsonEntry : ((JsonObject) jsonElement).entrySet()) {
JsonElement sortedJsonElement = jsonEntry.getValue();
if (sortedJsonElement instanceof JsonObject) {
sortedJsonElement = sortJsonElement(sortedJsonElement);
}
sortedJsonObject.put(jsonEntry.getKey(), sortedJsonElement);
}
// overwrite jsonElement with json sorted by key alphabetically
JsonObject sortedJsonElement = new JsonObject();
for (Map.Entry<String, JsonElement> jsonEntrySorted : sortedJsonObject.entrySet()) {
sortedJsonElement.add(jsonEntrySorted.getKey(), jsonEntrySorted.getValue());
}
return sortedJsonElement;
} else {
// neither array, nor object: return original element
return jsonElement;
}
}
private static JsonElement nbtToJson(NBTBase nbtElement) {
if (nbtElement instanceof NBTBase.NBTPrimitive) {
NBTBase.NBTPrimitive nbtNumber = (NBTBase.NBTPrimitive) nbtElement;
switch (nbtNumber.getId()) {
case Constants.NBT.TAG_BYTE:
return new JsonPrimitive(nbtNumber.getByte());
case Constants.NBT.TAG_SHORT:
return new JsonPrimitive(nbtNumber.getShort());
case Constants.NBT.TAG_INT:
return new JsonPrimitive(nbtNumber.getInt());
case Constants.NBT.TAG_LONG:
return new JsonPrimitive(nbtNumber.getLong());
case Constants.NBT.TAG_FLOAT:
return new JsonPrimitive(nbtNumber.getFloat());
case Constants.NBT.TAG_DOUBLE:
return new JsonPrimitive(nbtNumber.getDouble());
default:
return new JsonObject();
}
} else if (nbtElement instanceof NBTTagString) {
String str = ((NBTTagString) nbtElement).getString();
if (str.length() > 100 && (str.startsWith("eyJ") || str.startsWith("ewo")) && Base64.isBase64(str)) {
// base64 decode NBTTagStrings starting with {" or {\n
try {
JsonElement base64DecodedJson = new JsonParser().parse(new String(Base64.decodeBase64(str)));
if (base64DecodedJson.isJsonObject()) {
JsonObject jsonObject = base64DecodedJson.getAsJsonObject();
JsonElement timestamp = jsonObject.get("timestamp");
if (timestamp != null) {
// convert unix timestamp to human-readable dates
try {
ZonedDateTime utcDateTime = ZonedDateTime.ofInstant(Instant.ofEpochMilli(timestamp.getAsLong()), ZoneOffset.UTC);
ZonedDateTime localDateTime = utcDateTime.withZoneSameInstant(ZoneOffset.systemDefault());
String zoneOffset = localDateTime.getOffset().toString();
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss O");
jsonObject.add("timeInUTC", new JsonPrimitive(utcDateTime.format(dateTimeFormatter)));
jsonObject.add("timeInLocalZone (UTC" + ("Z".equals(zoneOffset) ? "" : zoneOffset) + ")", new JsonPrimitive(localDateTime.format(dateTimeFormatter)));
} catch (DateTimeException | NumberFormatException ignored) {
}
}
}
return base64DecodedJson;
} catch (JsonParseException ignored) {
// failed to parse as json; leaving original string unmodified
}
}
return new JsonPrimitive(str);
} else if (nbtElement instanceof NBTTagList) {
NBTTagList nbtList = (NBTTagList) nbtElement;
JsonArray jsonArray = new JsonArray();
for (int tagId = 0; tagId < nbtList.tagCount(); tagId++) {
jsonArray.add(nbtToJson(nbtList.get(tagId)));
}
return jsonArray;
} else if (nbtElement instanceof NBTTagIntArray) {
int[] intArray = ((NBTTagIntArray) nbtElement).getIntArray();
JsonArray jsonArray = new JsonArray();
for (int number : intArray) {
jsonArray.add(new JsonPrimitive(number));
}
return jsonArray;
} else if (nbtElement instanceof NBTTagCompound) {
NBTTagCompound nbtCompound = (NBTTagCompound) nbtElement;
JsonObject jsonObject = new JsonObject();
for (String nbtEntry : nbtCompound.getKeySet()) {
jsonObject.add(nbtEntry, nbtToJson(nbtCompound.getTag(nbtEntry)));
}
return jsonObject;
}
return new JsonObject();
}
public static class HyPlayerDataDeserializer implements JsonDeserializer<HyPlayerData> {
@Override
public HyPlayerData deserialize(JsonElement json, Type type, JsonDeserializationContext jdc) throws JsonParseException {
if (!json.getAsJsonObject().get("success").getAsBoolean()) {
// status: failed
return null;
}
JsonElement player = json.getAsJsonObject().get("player");
HyPlayerData hyPlayerData = gsonPrettyPrinter.fromJson(player, HyPlayerData.class);
if (hyPlayerData == null) {
// player hasn't played Hypixel before
return new HyPlayerData();
}
return hyPlayerData;
}
}
public static class LowestBinsDeserializer implements JsonDeserializer<LowestBinsCache> {
@Override
public LowestBinsCache deserialize(JsonElement json, Type type, JsonDeserializationContext jdc) throws JsonParseException {
LowestBinsCache lowestBinsCache = new LowestBinsCache();
if (!json.isJsonObject()) {
// invalid JSON
return lowestBinsCache;
}
JsonObject lowestBins = json.getAsJsonObject();
for (Map.Entry<String, JsonElement> entry : lowestBins.entrySet()) {
try {
lowestBinsCache.put(entry.getKey(), entry.getValue().getAsLong());
} catch (ClassCastException | NumberFormatException ignored) {
// somehow not a long
}
}
return lowestBinsCache;
}
}
}
|
