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Fix issue #2119

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This commit is contained in:
BruceChen 2022-08-28 16:18:29 +08:00
parent dff3f23b03
commit 75e7b0e37d
4 changed files with 26 additions and 6 deletions
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10
MinecraftClient/Protocol/Handlers/DataTypes.cs
View file

@ -74,6 +74,16 @@ namespace MinecraftClient.Protocol.Handlers
else return "";
}
/// <summary>
/// Skip a string from a cache of bytes and remove it from the cache
/// </summary>
/// <param name="cache">Cache of bytes to read from</param>
public void SkipNextString(Queue<byte> cache)
{
int length = ReadNextVarInt(cache);
DropData(length, cache);
}
/// <summary>
/// Read a boolean from a cache of bytes and remove it from the cache
/// </summary>

18
MinecraftClient/Protocol/Handlers/Protocol18.cs
View file

@ -361,7 +361,7 @@ namespace MinecraftClient.Protocol.Handlers
else
dataTypes.ReadNextByte(packetData); // Max Players - 1.16.1 and below
if (protocolversion < MC_1_16_Version)
dataTypes.ReadNextString(packetData); // Level Type - 1.15 and below
dataTypes.SkipNextString(packetData); // Level Type - 1.15 and below
if (protocolversion >= MC_1_14_Version)
dataTypes.ReadNextVarInt(packetData); // View distance - 1.14 and above
if (protocolversion >= MC_1_18_1_Version)
@ -380,7 +380,7 @@ namespace MinecraftClient.Protocol.Handlers
bool hasDeathLocation = dataTypes.ReadNextBool(packetData); // Has death location
if (hasDeathLocation)
{
dataTypes.ReadNextString(packetData); // Death dimension name: Identifier
dataTypes.SkipNextString(packetData); // Death dimension name: Identifier
dataTypes.ReadNextLocation(packetData); // Death location
}
}
@ -475,7 +475,7 @@ namespace MinecraftClient.Protocol.Handlers
if (protocolversion >= MC_1_16_Version)
dataTypes.ReadNextByte(packetData); // Previous Game mode - 1.16 and above
if (protocolversion < MC_1_16_Version)
dataTypes.ReadNextString(packetData); // Level Type - 1.15 and below
dataTypes.SkipNextString(packetData); // Level Type - 1.15 and below
if (protocolversion >= MC_1_16_Version)
{
dataTypes.ReadNextBool(packetData); // Is Debug - 1.16 and above
@ -962,7 +962,13 @@ namespace MinecraftClient.Protocol.Handlers
break;
case 0x03: //Update display name
if (dataTypes.ReadNextBool(packetData))
dataTypes.ReadNextString(packetData);
{
PlayerInfo? player = handler.GetPlayerInfo(uuid);
if (player != null)
player.DisplayName = dataTypes.ReadNextString(packetData);
else
dataTypes.SkipNextString(packetData);
}
break;
case 0x04: //Player Leave
handler.OnPlayerLeave(uuid);
@ -1002,7 +1008,7 @@ namespace MinecraftClient.Protocol.Handlers
{
// Skip optional tooltip for each tab-complete result
if (dataTypes.ReadNextBool(packetData))
dataTypes.ReadNextString(packetData);
dataTypes.SkipNextString(packetData);
}
}
@ -1122,7 +1128,7 @@ namespace MinecraftClient.Protocol.Handlers
string forcedMessage = ChatParser.ParseText(dataTypes.ReadNextString(packetData));
bool hasPromptMessage = dataTypes.ReadNextBool(packetData); // Has Prompt Message (Boolean) - 1.17 and above
if (hasPromptMessage)
dataTypes.ReadNextString(packetData); // Prompt Message (Optional Chat) - 1.17 and above
dataTypes.SkipNextString(packetData); // Prompt Message (Optional Chat) - 1.17 and above
}
// Some server plugins may send invalid resource packs to probe the client and we need to ignore them (issue #1056)
if (!url.StartsWith("http") && hash.Length != 40) // Some server may have null hash value