From d77221c7157a7a371cdbc7b00abe287199be3c86 Mon Sep 17 00:00:00 2001 From: madmaxoft Date: Thu, 4 Sep 2014 14:00:54 +0200 Subject: Anvil: Cleanly refuse to store data that is too large. Each chunk in MCA needs to be less than 1 MiB compressed; chunks that are larger will be refused with a log message. --- src/WorldStorage/WSSAnvil.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'src/WorldStorage/WSSAnvil.cpp') diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index 239f4a155..4d2f92173 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -2905,7 +2905,13 @@ bool cWSSAnvil::cMCAFile::SetChunkData(const cChunkCoords & a_Chunk, const AStri // Store the header: ChunkSize = ((u_long)a_Data.size() + MCA_CHUNK_HEADER_LENGTH + 4095) / 4096; // Round data size *up* to nearest 4KB sector, make it a sector number - ASSERT(ChunkSize < 256); + if (ChunkSize > 255) + { + LOGWARNING("Cannot save chunk [%d, %d], the data is too large (%u KiB, maximum is 1024 KiB). Remove some entities and retry.", + a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, (unsigned)(ChunkSize * 4) + ); + return false; + } m_Header[LocalX + 32 * LocalZ] = htonl((ChunkSector << 8) | ChunkSize); if (m_File.Seek(0) < 0) { -- cgit v1.2.3 From 254c8c9154e8355f139e43cf482366bb4855a4f8 Mon Sep 17 00:00:00 2001 From: Mattes D Date: Fri, 5 Sep 2014 16:40:03 +0300 Subject: Anvil: Fixed loading block entities with invalid Y coord. --- src/WorldStorage/WSSAnvil.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/WorldStorage/WSSAnvil.cpp') diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index 4d2f92173..b8f8ba019 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -589,7 +589,7 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con // Get the BlockEntity's position int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z)) + if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z) || (y < 0) || (y >= cChunkDef::Height)) { LOGWARNING("Bad block entity, missing the coords. Will be ignored."); continue; -- cgit v1.2.3 From 4230eb3d924a2230a20e5044dfffa118ad090429 Mon Sep 17 00:00:00 2001 From: Mattes D Date: Fri, 5 Sep 2014 22:55:39 +0200 Subject: Fixed loading empty chunks. Reported on the Dropper map in #1307. --- src/WorldStorage/WSSAnvil.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'src/WorldStorage/WSSAnvil.cpp') diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index b8f8ba019..f78ee405b 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -323,7 +323,13 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT return false; } int Sections = a_NBT.FindChildByName(Level, "Sections"); - if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List) || (a_NBT.GetChildrenType(Sections) != TAG_Compound)) + if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List)) + { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); + return false; + } + eTagType SectionsType = a_NBT.GetChildrenType(Sections); + if ((SectionsType != TAG_Compound) && (SectionsType != TAG_End)) { LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; -- cgit v1.2.3 From 9f9302f470d2adc1ef4018474c4f03a72ca723ed Mon Sep 17 00:00:00 2001 From: Mattes D Date: Sat, 6 Sep 2014 13:32:16 +0200 Subject: Anvil: Fixed an off-by-one error in the loader. Fixes #1307. --- src/WorldStorage/WSSAnvil.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/WorldStorage/WSSAnvil.cpp') diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index f78ee405b..2500b5dea 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -2821,7 +2821,7 @@ bool cWSSAnvil::cMCAFile::GetChunkData(const cChunkCoords & a_Chunk, AString & a } unsigned ChunkLocation = ntohl(m_Header[LocalX + 32 * LocalZ]); unsigned ChunkOffset = ChunkLocation >> 8; - if (ChunkOffset <= 2) + if (ChunkOffset < 2) { return false; } -- cgit v1.2.3 From 0a651b9fd83f078a73429f02603144e80a05148d Mon Sep 17 00:00:00 2001 From: Mattes D Date: Sat, 6 Sep 2014 18:59:17 +0200 Subject: Added Y-wise asserts to signs. This should help detect #1313's second case. --- src/WorldStorage/WSSAnvil.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/WorldStorage/WSSAnvil.cpp') diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index 2500b5dea..fe309ce4e 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -623,6 +623,8 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con cBlockEntity * cWSSAnvil::LoadBlockEntityFromNBT(const cParsedNBT & a_NBT, int a_Tag, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) { + ASSERT((a_BlockY >= 0) && (a_BlockY < cChunkDef::Height)); + // Load the specific BlockEntity type: switch (a_BlockType) { -- cgit v1.2.3