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Fix connection to forge 1.7.10 servers.

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This includes making sure plugin channels have their packet.
Also, it fixes a mistake in #92, where brand info doesn't send
length in 1.7.10 (same channel issue).  Finally, there's only 1
registry sent to the client in 1.7.10.
This commit is contained in:
Pokechu22 2015-10-24 21:17:28 -07:00
parent ad38154f8f
commit 7c8e856392
1 changed files with 44 additions and 14 deletions
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58
MinecraftClient/Protocol/Handlers/Protocol18.cs
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@ -212,6 +212,12 @@ namespace MinecraftClient.Protocol.Handlers
break;
case 0x3F: //Plugin message.
String channel = readNextString(ref packetData);
if (protocolversion < MC18Version)
{
// 1.7 and lower prefix plugin channel packets with the length.
// We can skip it, though.
readNextShort(ref packetData);
}
if (forgeInfo != null)
{
if (channel == "FML|HS")
@ -277,17 +283,33 @@ namespace MinecraftClient.Protocol.Handlers
if (discriminator != FMLHandshakeDiscriminator.RegistryData)
return false;
bool hasNextRegistry = readNextBool(ref packetData);
string registryName = readNextString(ref packetData);
int registrySize = readNextVarInt(ref packetData);
ConsoleIO.WriteLineFormatted("§8Received registry " + registryName +
" with " + registrySize + " entries");
if (!hasNextRegistry)
if (protocolversion < MC18Version)
{
// 1.7.10 and below have one registry
// with blocks and items.
int registrySize = readNextVarInt(ref packetData);
ConsoleIO.WriteLineFormatted("§8Received registry " +
"with " + registrySize + " entries");
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
else
{
// 1.8+ has more than one registry.
bool hasNextRegistry = readNextBool(ref packetData);
string registryName = readNextString(ref packetData);
int registrySize = readNextVarInt(ref packetData);
ConsoleIO.WriteLineFormatted("§8Received registry " + registryName +
" with " + registrySize + " entries");
if (!hasNextRegistry)
{
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
}
return false;
case FMLHandshakeClientState.PENDINGCOMPLETE:
@ -628,7 +650,19 @@ namespace MinecraftClient.Protocol.Handlers
private void SendPluginChannelPacket(string channel, byte[] data)
{
SendPacket(0x17, concatBytes(getString(channel), data));
// In 1.7, length needs to be included.
// In 1.8, it must not be.
if (protocolversion < MC18Version)
{
byte[] length = BitConverter.GetBytes((short)data.Length);
Array.Reverse(length);
SendPacket(0x17, concatBytes(getString(channel), length, data));
}
else
{
SendPacket(0x17, concatBytes(getString(channel), data));
}
}
/// <summary>
@ -829,11 +863,7 @@ namespace MinecraftClient.Protocol.Handlers
return false;
try
{
byte[] channel = Encoding.UTF8.GetBytes("MC|Brand");
byte[] channelLen = getVarInt(channel.Length);
byte[] brand = Encoding.UTF8.GetBytes(brandInfo);
byte[] brandLen = getVarInt(brand.Length);
SendPacket(0x17, concatBytes(channelLen, channel, brandLen, brand));
SendPluginChannelPacket("MC|Brand", getString(brandInfo));
return true;
}
catch (SocketException) { return false; }