/
Protocolc0_30toc0_30cpe.java
370 lines (338 loc) · 21.9 KB
/
Protocolc0_30toc0_30cpe.java
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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/*
* This file is part of ViaLegacy - https://github.com/RaphiMC/ViaLegacy
* Copyright (C) 2023 RK_01/RaphiMC and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.connection.UserConnection;
import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
import com.viaversion.viaversion.api.minecraft.BlockChangeRecord1_8;
import com.viaversion.viaversion.api.minecraft.Position;
import com.viaversion.viaversion.api.platform.providers.ViaProviders;
import com.viaversion.viaversion.api.protocol.AbstractProtocol;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.packet.State;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
import com.viaversion.viaversion.api.type.Type;
import com.viaversion.viaversion.api.type.types.CustomByteType;
import net.raphimc.vialegacy.ViaLegacy;
import net.raphimc.vialegacy.api.data.BlockList1_6;
import net.raphimc.vialegacy.api.model.ChunkCoord;
import net.raphimc.vialegacy.api.model.IdAndData;
import net.raphimc.vialegacy.api.splitter.PreNettySplitter;
import net.raphimc.vialegacy.protocols.alpha.protocola1_0_16_2toa1_0_15.ClientboundPacketsa1_0_15;
import net.raphimc.vialegacy.protocols.alpha.protocola1_0_16_2toa1_0_15.Protocola1_0_16_2toa1_0_15;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.ClientboundPacketsc0_28;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.ServerboundPacketsc0_28;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.data.ClassicBlocks;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.model.ClassicLevel;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.storage.ClassicBlockRemapper;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.storage.ClassicLevelStorage;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.storage.ClassicOpLevelStorage;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.storage.ClassicProgressStorage;
import net.raphimc.vialegacy.protocols.classic.protocola1_0_15toc0_28_30.types.Typesc0_30;
import net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe.data.ClassicProtocolExtension;
import net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe.data.ExtendedClassicBlocks;
import net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe.storage.ExtBlockPermissionsStorage;
import net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe.storage.ExtensionProtocolMetadataStorage;
import net.raphimc.vialegacy.protocols.classic.protocolc0_28_30toc0_28_30cpe.task.ClassicPingTask;
import net.raphimc.vialegacy.protocols.release.protocol1_2_1_3to1_1.types.Types1_1;
import net.raphimc.vialegacy.protocols.release.protocol1_6_2to1_6_1.Protocol1_6_2to1_6_1;
import net.raphimc.vialegacy.protocols.release.protocol1_7_2_5to1_6_4.ClientboundPackets1_6_4;
import net.raphimc.vialegacy.protocols.release.protocol1_7_2_5to1_6_4.types.Types1_6_4;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class Protocolc0_30toc0_30cpe extends AbstractProtocol<ClientboundPacketsc0_30cpe, ClientboundPacketsc0_28, ServerboundPacketsc0_30cpe, ServerboundPacketsc0_28> {
public Protocolc0_30toc0_30cpe() {
super(ClientboundPacketsc0_30cpe.class, ClientboundPacketsc0_28.class, ServerboundPacketsc0_30cpe.class, ServerboundPacketsc0_28.class);
}
@Override
protected void registerPackets() {
this.registerClientbound(ClientboundPacketsc0_30cpe.JOIN_GAME, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
if (wrapper.user().getProtocolInfo().getPipeline().contains(Protocol1_6_2to1_6_1.class)) {
final ExtensionProtocolMetadataStorage protocolMetadataStorage = wrapper.user().get(ExtensionProtocolMetadataStorage.class);
final PacketWrapper brand = PacketWrapper.create(ClientboundPackets1_6_4.PLUGIN_MESSAGE, wrapper.user());
brand.write(Types1_6_4.STRING, "MC|Brand");
final byte[] brandBytes = protocolMetadataStorage.getServerSoftwareName().getBytes(StandardCharsets.UTF_8);
brand.write(Type.SHORT, (short) brandBytes.length); // data length
brand.write(Type.REMAINING_BYTES, brandBytes); // data
wrapper.send(Protocolc0_30toc0_30cpe.class);
brand.send(Protocol1_6_2to1_6_1.class);
wrapper.cancel();
}
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXTENSION_PROTOCOL_INFO, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final ExtensionProtocolMetadataStorage protocolMetadataStorage = wrapper.user().get(ExtensionProtocolMetadataStorage.class);
protocolMetadataStorage.setServerSoftwareName(wrapper.read(Typesc0_30.STRING)); // app name
protocolMetadataStorage.setExtensionCount(wrapper.read(Type.SHORT)); // extension count
final ClassicProgressStorage classicProgressStorage = wrapper.user().get(ClassicProgressStorage.class);
classicProgressStorage.progress = 0;
classicProgressStorage.upperBound = protocolMetadataStorage.getExtensionCount();
classicProgressStorage.status = "Receiving extension list...";
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXTENSION_PROTOCOL_ENTRY, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final ExtensionProtocolMetadataStorage protocolMetadataStorage = wrapper.user().get(ExtensionProtocolMetadataStorage.class);
final String extensionName = wrapper.read(Typesc0_30.STRING); // name
final int extensionVersion = wrapper.read(Type.INT); // version
final ClassicProtocolExtension extension = ClassicProtocolExtension.byName(extensionName);
if (extension != null) {
protocolMetadataStorage.addServerExtension(extension, extensionVersion);
} else {
ViaLegacy.getPlatform().getLogger().warning("Received unknown classic protocol extension: (" + extensionName + " v" + extensionVersion + ")");
}
protocolMetadataStorage.incrementReceivedExtensions();
final ClassicProgressStorage classicProgressStorage = wrapper.user().get(ClassicProgressStorage.class);
classicProgressStorage.progress = protocolMetadataStorage.getReceivedExtensions();
if (protocolMetadataStorage.getReceivedExtensions() >= protocolMetadataStorage.getExtensionCount()) {
classicProgressStorage.status = "Sending extension list...";
final List<ClassicProtocolExtension> supportedExtensions = new ArrayList<>();
for (ClassicProtocolExtension protocolExtension : ClassicProtocolExtension.values()) {
if (protocolExtension.isSupported()) {
supportedExtensions.add(protocolExtension);
}
}
if (supportedExtensions.contains(ClassicProtocolExtension.BLOCK_PERMISSIONS)) {
wrapper.user().put(new ExtBlockPermissionsStorage(wrapper.user()));
}
final PacketWrapper extensionProtocolInfo = PacketWrapper.create(ServerboundPacketsc0_30cpe.EXTENSION_PROTOCOL_INFO, wrapper.user());
extensionProtocolInfo.write(Typesc0_30.STRING, "ClassiCube 1.3.5"); // app name
extensionProtocolInfo.write(Type.SHORT, (short) supportedExtensions.size()); // extension count
extensionProtocolInfo.sendToServer(Protocolc0_30toc0_30cpe.class);
for (ClassicProtocolExtension protocolExtension : supportedExtensions) {
final PacketWrapper extensionProtocolEntry = PacketWrapper.create(ServerboundPacketsc0_30cpe.EXTENSION_PROTOCOL_ENTRY, wrapper.user());
extensionProtocolEntry.write(Typesc0_30.STRING, protocolExtension.getName()); // name
extensionProtocolEntry.write(Type.INT, protocolExtension.getHighestSupportedVersion()); // version
extensionProtocolEntry.sendToServer(Protocolc0_30toc0_30cpe.class);
}
}
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXT_CUSTOM_BLOCKS_SUPPORT_LEVEL, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final byte level = wrapper.read(Type.BYTE); // support level
if (level != 1) {
ViaLegacy.getPlatform().getLogger().info("Classic server supports CustomBlocks level " + level);
}
final PacketWrapper response = PacketWrapper.create(ServerboundPacketsc0_30cpe.EXT_CUSTOM_BLOCKS_SUPPORT_LEVEL, wrapper.user());
response.write(Type.BYTE, (byte) 1); // support level
response.sendToServer(Protocolc0_30toc0_30cpe.class);
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXT_HACK_CONTROL, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final ClassicOpLevelStorage opLevelStorage = wrapper.user().get(ClassicOpLevelStorage.class);
final boolean flying = wrapper.read(Type.BOOLEAN); // flying
final boolean noClip = wrapper.read(Type.BOOLEAN); // no clip
final boolean speed = wrapper.read(Type.BOOLEAN); // speed
final boolean respawn = wrapper.read(Type.BOOLEAN); // respawn key
wrapper.read(Type.BOOLEAN); // third person view
wrapper.read(Type.SHORT); // jump height
opLevelStorage.updateHax(flying, noClip, speed, respawn);
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXT_SET_BLOCK_PERMISSION, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final ExtBlockPermissionsStorage blockPermissionsStorage = wrapper.user().get(ExtBlockPermissionsStorage.class);
final byte blockId = wrapper.read(Type.BYTE); // block id
final boolean canPlace = wrapper.read(Type.BOOLEAN); // can place
final boolean canDelete = wrapper.read(Type.BOOLEAN); // can delete
if (canPlace) {
blockPermissionsStorage.addPlaceable(blockId);
} else {
blockPermissionsStorage.removePlaceable(blockId);
}
if (canDelete) {
blockPermissionsStorage.addBreakable(blockId);
} else {
blockPermissionsStorage.removeBreakable(blockId);
}
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXT_BULK_BLOCK_UPDATE, null, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
wrapper.cancel();
final ClassicLevelStorage levelStorage = wrapper.user().get(ClassicLevelStorage.class);
if (levelStorage == null || !levelStorage.hasReceivedLevel()) {
return;
}
final ClassicBlockRemapper remapper = wrapper.user().get(ClassicBlockRemapper.class);
final ClassicLevel level = levelStorage.getClassicLevel();
final int count = wrapper.read(Type.UNSIGNED_BYTE) + 1; // count
final byte[] indices = wrapper.read(new CustomByteType(1024)); // indices
final byte[] blocks = wrapper.read(new CustomByteType(256)); // blocks
if (wrapper.user().getProtocolInfo().getPipeline().contains(Protocola1_0_16_2toa1_0_15.class)) {
final Map<ChunkCoord, List<BlockChangeRecord>> records = new HashMap<>();
for (int i = 0; i < count; i++) {
final int index = (indices[i * 4] & 255) << 24 | (indices[i * 4 + 1] & 255) << 16 | (indices[i * 4 + 2] & 255) << 8 | (indices[i * 4 + 3] & 255);
final Position pos = new Position(index % level.getSizeX(), (index / level.getSizeX()) / level.getSizeZ(), (index / level.getSizeX()) % level.getSizeZ());
final byte blockId = blocks[i];
level.setBlock(pos, blockId);
if (!levelStorage.isChunkLoaded(pos)) continue;
final IdAndData mappedBlock = remapper.getMapper().get(blockId);
records.computeIfAbsent(new ChunkCoord(pos.x() >> 4, pos.z() >> 4), k -> new ArrayList<>()).add(new BlockChangeRecord1_8(pos.x() & 15, pos.y(), pos.z() & 15, mappedBlock.toCompressedData()));
}
for (Map.Entry<ChunkCoord, List<BlockChangeRecord>> entry : records.entrySet()) {
final PacketWrapper multiBlockChange = PacketWrapper.create(ClientboundPacketsa1_0_15.MULTI_BLOCK_CHANGE, wrapper.user());
multiBlockChange.write(Type.INT, entry.getKey().chunkX); // chunkX
multiBlockChange.write(Type.INT, entry.getKey().chunkZ); // chunkZ
multiBlockChange.write(Types1_1.BLOCK_CHANGE_RECORD_ARRAY, entry.getValue().toArray(new BlockChangeRecord[0])); // blockChangeRecords
multiBlockChange.send(Protocola1_0_16_2toa1_0_15.class);
}
}
});
}
});
this.registerClientbound(ClientboundPacketsc0_30cpe.EXT_TWO_WAY_PING, ClientboundPacketsc0_28.KEEP_ALIVE, new PacketHandlers() {
@Override
public void register() {
handler(wrapper -> {
final byte direction = wrapper.read(Type.BYTE); // direction
final short data = wrapper.read(Type.SHORT); // data
if (direction == 1) {
final PacketWrapper pingResponse = PacketWrapper.create(ServerboundPacketsc0_30cpe.EXT_TWO_WAY_PING, wrapper.user());
pingResponse.write(Type.BYTE, direction); // direction
pingResponse.write(Type.SHORT, data); // data
pingResponse.sendToServer(Protocolc0_30toc0_30cpe.class);
}
});
}
});
this.registerServerbound(State.LOGIN, ServerboundPacketsc0_28.LOGIN.getId(), ServerboundPacketsc0_30cpe.LOGIN.getId(), new PacketHandlers() {
@Override
public void register() {
map(Type.BYTE); // protocol id
map(Typesc0_30.STRING); // username
map(Typesc0_30.STRING); // mp pass
map(Type.BYTE); // op level
handler(wrapper -> {
wrapper.set(Type.BYTE, 1, (byte) 0x42); // extension protocol magic number
});
}
});
this.registerServerbound(ServerboundPacketsc0_28.CHAT_MESSAGE, new PacketHandlers() {
@Override
public void register() {
map(Type.BYTE); // sender id
map(Typesc0_30.STRING); // message
handler(wrapper -> {
final ExtensionProtocolMetadataStorage protocolMetadata = wrapper.user().get(ExtensionProtocolMetadataStorage.class);
if (!protocolMetadata.hasServerExtension(ClassicProtocolExtension.LONGER_MESSAGES, 1)) return;
wrapper.cancel();
String message = wrapper.get(Typesc0_30.STRING, 0);
while (!message.isEmpty()) {
final int pos = Math.min(message.length(), 64);
final String msg = message.substring(0, pos);
message = message.substring(pos);
final PacketWrapper chatMessage = PacketWrapper.create(ServerboundPacketsc0_30cpe.CHAT_MESSAGE, wrapper.user());
chatMessage.write(Type.BYTE, (byte) (!message.isEmpty() ? 1 : 0)); // 1 = more parts | 0 = last part
chatMessage.write(Typesc0_30.STRING, msg); // message
chatMessage.sendToServer(Protocolc0_30toc0_30cpe.class);
}
});
}
});
this.registerServerbound(ServerboundPacketsc0_28.PLAYER_BLOCK_PLACEMENT, new PacketHandlers() {
@Override
public void register() {
map(Typesc0_30.POSITION); // position
map(Type.BOOLEAN); // place block
map(Type.BYTE); // block id
handler(wrapper -> {
if (!wrapper.user().has(ExtBlockPermissionsStorage.class)) return;
final ExtBlockPermissionsStorage blockPermissions = wrapper.user().get(ExtBlockPermissionsStorage.class);
final ClassicLevel level = wrapper.user().get(ClassicLevelStorage.class).getClassicLevel();
final Position position = wrapper.get(Typesc0_30.POSITION, 0);
final boolean placeBlock = wrapper.get(Type.BOOLEAN, 0);
final int blockId = wrapper.get(Type.BYTE, 0);
int block = level.getBlock(position);
final boolean disallow = (placeBlock && blockPermissions.isPlacingDenied(blockId)) || (!placeBlock && blockPermissions.isBreakingDenied(block));
if (disallow) {
wrapper.cancel();
final PacketWrapper chatMessage = PacketWrapper.create(ClientboundPacketsc0_30cpe.CHAT_MESSAGE, wrapper.user());
chatMessage.write(Type.BYTE, (byte) 0); // sender id
chatMessage.write(Typesc0_30.STRING, "&cYou are not allowed to place/break this block"); // message
chatMessage.send(Protocolc0_30toc0_30cpe.class);
} else {
block = placeBlock ? blockId : ClassicBlocks.AIR;
level.setBlock(position, block);
}
final PacketWrapper blockChange = PacketWrapper.create(ClientboundPacketsc0_30cpe.BLOCK_CHANGE, wrapper.user());
blockChange.write(Typesc0_30.POSITION, position); // position
blockChange.write(Type.BYTE, (byte) block); // block id
blockChange.send(Protocolc0_30toc0_30cpe.class);
});
}
});
}
@Override
public void register(ViaProviders providers) {
Via.getPlatform().runRepeatingSync(new ClassicPingTask(), 20L);
}
@Override
public void init(UserConnection userConnection) {
userConnection.put(new PreNettySplitter(userConnection, Protocolc0_30toc0_30cpe.class, ClientboundPacketsc0_30cpe::getPacket));
userConnection.put(new ExtensionProtocolMetadataStorage(userConnection));
final ClassicBlockRemapper previousRemapper = userConnection.get(ClassicBlockRemapper.class);
userConnection.put(new ClassicBlockRemapper(userConnection, i -> {
if (ClassicBlocks.MAPPING.containsKey(i)) return previousRemapper.getMapper().get(i);
final ExtensionProtocolMetadataStorage extensionProtocol = userConnection.get(ExtensionProtocolMetadataStorage.class);
if (extensionProtocol.hasServerExtension(ClassicProtocolExtension.CUSTOM_BLOCKS, 1)) {
return ExtendedClassicBlocks.MAPPING.get(i);
}
return new IdAndData(BlockList1_6.stone.blockID, 0);
}, o -> {
if (ClassicBlocks.REVERSE_MAPPING.containsKey(o)) return previousRemapper.getReverseMapper().getInt(o);
final ExtensionProtocolMetadataStorage extensionProtocol = userConnection.get(ExtensionProtocolMetadataStorage.class);
if (extensionProtocol.hasServerExtension(ClassicProtocolExtension.CUSTOM_BLOCKS, 1)) {
return ExtendedClassicBlocks.REVERSE_MAPPING.getInt(o);
}
return ClassicBlocks.STONE;
}));
}
}