summaryrefslogtreecommitdiffstats
path: root/src/Protocol/Protocol18x.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/Protocol/Protocol18x.cpp175
1 files changed, 6 insertions, 169 deletions
diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp
index 07e21923c..fbeb845f8 100644
--- a/src/Protocol/Protocol18x.cpp
+++ b/src/Protocol/Protocol18x.cpp
@@ -1652,169 +1652,6 @@ void cProtocol180::FixItemFramePositions(int a_ObjectData, double & a_PosX, doub
-AString cProtocol180::ReadNBTDataFromBuffer(cByteBuffer & a_ByteBuffer, int a_ListTag)
-{
- cByteBuffer BufferCache(64 KiB);
- AString Data;
-
- while (a_ByteBuffer.GetReadableSpace() != 0)
- {
- unsigned char TypeID;
- if (a_ListTag != 0)
- {
- TypeID = (unsigned char)a_ListTag;
- }
- else
- {
- if (!a_ByteBuffer.ReadByte(TypeID))
- {
- // Can't read the next byte
- break;
- }
- BufferCache.WriteByte(TypeID);
- }
-
- if ((TypeID <= eTagType::TAG_Min) || (TypeID > eTagType::TAG_Max))
- {
- // Bad type id (or TAG_End)
- break;
- }
- eTagType TagType = static_cast<eTagType>(TypeID);
-
- // Read the following string length:
- if (a_ListTag == 0)
- {
- short StrLength = 0;
- if (!a_ByteBuffer.ReadBEShort(StrLength))
- {
- // Can't read string length
- return Data;
- }
- BufferCache.WriteBEShort(StrLength);
-
- // Read string and write to BufferCache:
- AString TagTitle;
- if (!a_ByteBuffer.ReadString(TagTitle, (size_t)StrLength))
- {
- // Can't read string
- return Data;
- }
- BufferCache.WriteBuf(TagTitle.data(), TagTitle.size());
- }
-
- size_t TagLength = 0;
- switch (TagType)
- {
- case eTagType::TAG_Byte: TagLength = sizeof(Byte); break;
- case eTagType::TAG_Short: TagLength = sizeof(short); break;
- case eTagType::TAG_Int: TagLength = sizeof(int); break;
- case eTagType::TAG_Long: TagLength = sizeof(long); break;
- case eTagType::TAG_Float: TagLength = sizeof(float); break;
- case eTagType::TAG_Double: TagLength = sizeof(double); break;
- case eTagType::TAG_End: break;
- case eTagType::TAG_Compound:
- {
- AString CompoundData = ReadNBTDataFromBuffer(a_ByteBuffer);
- Data.append(CompoundData.data(), CompoundData.size());
- break;
- }
- case eTagType::TAG_List:
- {
- Byte ListType;
- int ListLength;
- if (!a_ByteBuffer.ReadByte(ListType) || !a_ByteBuffer.ReadBEInt(ListLength) || (ListLength < 0))
- {
- // Bad list type or list length
- return Data;
- }
- LOGWARNING("LIST, Type: %i", (int)ListType);
-
- BufferCache.WriteByte(ListType);
- BufferCache.WriteBEInt(ListLength);
-
- if ((ListType <= eTagType::TAG_Min) || (ListType > eTagType::TAG_Max))
- {
- // Bad tag type
- return Data;
- }
-
- for (int i = 0; i < ListLength; i++)
- {
- AString EntryData = ReadNBTDataFromBuffer(a_ByteBuffer, ListType);
- BufferCache.WriteBuf(EntryData.data(), EntryData.size());
- }
- break;
- }
- case eTagType::TAG_String:
- {
- // Read the following string length:
- short StrLength;
- if (!a_ByteBuffer.ReadBEShort(StrLength))
- {
- // Can't read string length
- return Data;
- }
- BufferCache.WriteBEShort(StrLength);
- TagLength += (size_t)StrLength;
- break;
- }
- case eTagType::TAG_ByteArray:
- {
- int ArrayLength;
- if (!a_ByteBuffer.ReadBEInt(ArrayLength) || (ArrayLength < 0) || (ArrayLength >= 16777216))
- {
- // Bad array length
- return Data;
- }
- BufferCache.WriteBEInt(ArrayLength);
- TagLength += (size_t) ArrayLength;
- break;
- }
- case eTagType::TAG_IntArray:
- {
- int ArrayLength;
- if (!a_ByteBuffer.ReadBEInt(ArrayLength) || (ArrayLength < 0) || (ArrayLength >= 16777216))
- {
- // Bad array length
- return Data;
- }
- BufferCache.WriteBEInt(ArrayLength);
- TagLength += (size_t)ArrayLength * sizeof(int);
- break;
- }
- }
-
- // Copy tag bytes to the cache:
- AString TagBytes;
- if (!a_ByteBuffer.ReadString(TagBytes, TagLength))
- {
- break;
- }
- BufferCache.WriteBuf(TagBytes.data(), TagBytes.size());
-
- // Write cache to Data and clean:
- AString Bytes;
- BufferCache.ReadAll(Bytes);
- BufferCache.CommitRead();
- Data.append(Bytes.data(), Bytes.size());
- }
-
- // Read the rest from cache
- if (BufferCache.GetUsedSpace() != 0)
- {
- AString Bytes;
- BufferCache.ReadAll(Bytes);
- BufferCache.CommitRead();
- Data.append(Bytes.data(), Bytes.size());
- }
-
- return Data;
-}
-
-
-
-
-
void cProtocol180::AddReceivedData(const char * a_Data, size_t a_Size)
{
// Write the incoming data into the comm log file:
@@ -2254,7 +2091,7 @@ void cProtocol180::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer)
}
cItem Item;
- ReadItem(a_ByteBuffer, Item);
+ ReadItem(a_ByteBuffer, Item, a_ByteBuffer.GetReadableSpace() - 3);
HANDLE_READ(a_ByteBuffer, ReadByte, Byte, CursorX);
HANDLE_READ(a_ByteBuffer, ReadByte, Byte, CursorY);
@@ -2328,7 +2165,7 @@ void cProtocol180::HandlePacketCreativeInventoryAction(cByteBuffer & a_ByteBuffe
{
HANDLE_READ(a_ByteBuffer, ReadBEShort, short, SlotNum);
cItem Item;
- if (!ReadItem(a_ByteBuffer, Item))
+ if (!ReadItem(a_ByteBuffer, Item, a_ByteBuffer.GetReadableSpace()))
{
return;
}
@@ -2581,7 +2418,7 @@ void cProtocol180::HandlePacketWindowClick(cByteBuffer & a_ByteBuffer)
HANDLE_READ(a_ByteBuffer, ReadBEShort, short, TransactionID);
HANDLE_READ(a_ByteBuffer, ReadByte, Byte, Mode);
cItem Item;
- ReadItem(a_ByteBuffer, Item);
+ ReadItem(a_ByteBuffer, Item, a_ByteBuffer.GetReadableSpace());
// Convert Button, Mode, SlotNum and HeldItem into eClickAction:
eClickAction Action;
@@ -2673,7 +2510,7 @@ void cProtocol180::SendData(const char * a_Data, size_t a_Size)
-bool cProtocol180::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item)
+bool cProtocol180::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item, size_t a_MetadataSize)
{
HANDLE_PACKET_READ(a_ByteBuffer, ReadBEShort, short, ItemType);
if (ItemType == -1)
@@ -2693,8 +2530,8 @@ bool cProtocol180::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item)
a_Item.Empty();
}
- AString Metadata = ReadNBTDataFromBuffer(a_ByteBuffer);
- if (Metadata.size() == 0 || (Metadata[0] == 0))
+ AString Metadata;
+ if (!a_ByteBuffer.ReadString(Metadata, a_MetadataSize) || (Metadata.size() == 0) || (Metadata[0] == 0))
{
// No metadata
return true;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 14:01:09 +0100