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authoradmin@omencraft.com <admin@omencraft.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-29 23:19:06 +0200
committeradmin@omencraft.com <admin@omencraft.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-29 23:19:06 +0200
commit625a4accdad2e6acfe1135634cb32ee149415645 (patch)
tree8c4dbd53b335ef9f5d3af6bc91c70ca92e1be6da /converter/cNBTData.cpp
parentFixed a memory leak (diff)
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Diffstat (limited to 'converter/cNBTData.cpp')
-rw-r--r--converter/cNBTData.cpp700
1 files changed, 700 insertions, 0 deletions
diff --git a/converter/cNBTData.cpp b/converter/cNBTData.cpp
new file mode 100644
index 000000000..9bc25b789
--- /dev/null
+++ b/converter/cNBTData.cpp
@@ -0,0 +1,700 @@
+#include "cNBTData.h"
+#include <string> // memcpy
+#include <stdio.h>
+#include "zlib.h"
+#include <assert.h>
+
+#ifndef _WIN32
+#include <cstring>
+#include <netinet/in.h>
+#endif
+
+#ifdef _WIN32
+#include <WinSock2.h>
+#endif
+
+cNBTData::~cNBTData()
+{
+ // TODO: Delete all compounds and stuff in it
+ Clear();
+}
+
+cNBTData::cNBTData( char* a_Buffer, unsigned int a_BufferSize )
+ : cNBTCompound( 0 )
+{
+ m_NumUnnamedElements = 0;
+ for(int i = 0; i < TAG_NumTags; i++)
+ {
+ m_ParseFunctions[i] = 0;
+ }
+ m_ParseFunctions[TAG_Byte] = &cNBTData::ParseByte;
+ m_ParseFunctions[TAG_Short] = &cNBTData::ParseShort;
+ m_ParseFunctions[TAG_Int] = &cNBTData::ParseInt;
+ m_ParseFunctions[TAG_String] = &cNBTData::ParseString;
+ m_ParseFunctions[TAG_List] = &cNBTData::ParseList;
+ m_ParseFunctions[TAG_Compound] = &cNBTData::ParseCompound;
+
+
+ m_Buffer = a_Buffer;
+ m_BufferSize = a_BufferSize;
+ m_Index = 0;
+
+ m_CurrentCompound = this;
+
+ m_bDecompressed = false;
+}
+
+bool cNBTData::OpenCompound( std::string a_Name )
+{
+ cNBTCompound* Compound = GetCompound( a_Name );
+ if( Compound )
+ {
+ m_CurrentCompound = Compound;
+ return true;
+ }
+ printf("WARNING: Could not open NBT Compound %s\n", a_Name.c_str() );
+ return false;
+}
+
+bool cNBTData::CloseCompound()
+{
+ if( m_CurrentCompound->GetParentCompound() )
+ {
+ m_CurrentCompound = m_CurrentCompound->GetParentCompound();
+ return true;
+ }
+ printf("WARNING: Could not close NBT Compound, already at root!\n" );
+ return false;
+}
+
+bool cNBTCompound::OpenList( std::string a_Name )
+{
+ if( GetList( a_Name ) )
+ {
+ m_CurrentList = GetList( a_Name );
+ return true;
+ }
+ printf("WARNING: Could not open NBT List %s\n", a_Name.c_str() );
+ return false;
+}
+
+bool cNBTCompound::CloseList()
+{
+ if( m_CurrentList )
+ {
+ m_CurrentList = m_CurrentList->GetParentList();
+ return true;
+ }
+ printf("WARNING: Could not close NBT List, no list open!\n" );
+ return false;
+}
+
+bool cNBTData::OpenList( std::string a_Name )
+{
+ return m_CurrentCompound->OpenList( a_Name );
+}
+
+bool cNBTData::CloseList()
+{
+ return m_CurrentCompound->CloseList();
+}
+
+void cNBTData::Compress()
+{
+ //printf("Before Compress size: %i\n", m_BufferSize );
+ const int MAXNBTSIZE = 1024 * 2;
+
+ int ret;
+ unsigned have;
+ z_stream strm;
+ unsigned char* Compressed = new unsigned char[MAXNBTSIZE];
+
+ /* allocate deflate state */
+ strm.zalloc = Z_NULL;
+ strm.zfree = Z_NULL;
+ strm.opaque = Z_NULL;
+ strm.avail_in = m_BufferSize;
+ strm.avail_out = MAXNBTSIZE;
+ strm.next_in =(Bytef*)m_Buffer;
+ strm.next_out = Compressed;
+ strm.total_in = 0;
+ strm.total_out = 0;
+ ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 15+MAX_WBITS, 8, Z_DEFAULT_STRATEGY);
+ if (ret != Z_OK)
+ {
+ printf("deflateInit2 returned NOT OK\n");
+ return;
+ }
+
+
+
+ /* run deflate() on input until output buffer not full, finish
+ compression if all of source has been read in */
+
+ ret = deflate(&strm, Z_FULL_FLUSH); /* no bad return value */
+ if( ret != Z_OK )
+ {
+ printf("WARNING: deflate returned NOT OK\n");
+ }
+ assert(ret != Z_STREAM_ERROR); /* state not clobbered */
+ have = strm.total_out;
+
+ assert(strm.avail_in == 0); /* all input will be used */
+
+ if( ret != Z_STREAM_END )
+ {
+ //printf("WARNING: Compressing didn't go to end of stream\n");
+ }
+
+ if(m_Buffer)
+ {
+ delete [] m_Buffer;
+ m_Buffer = 0;
+ }
+
+ //printf("Compressed size: %i\n", have );
+
+ m_BufferSize = have;
+ m_Buffer = new char[ m_BufferSize ];
+ memcpy( m_Buffer, Compressed, m_BufferSize );
+ delete Compressed;
+
+ /* clean up and return */
+ deflateEnd(&strm);
+ m_bDecompressed = false;
+ return;
+}
+
+bool cNBTData::Decompress()
+{
+ if( m_bDecompressed )
+ {
+ printf("WARNING: Decompress called, while it has already been decompressed\n");
+ return false;
+ }
+ if( m_BufferSize == 0 )
+ {
+ printf("WARNING: Decompress called, with m_BufferSize of 0\n");
+ return false;
+ }
+
+ //printf("Before Decompress size: %i\n", m_BufferSize );
+
+ const int MAXNBTSIZE = 1024 * 2;
+
+ int ret;
+ z_stream strm;
+ unsigned char* out = new unsigned char[MAXNBTSIZE];
+
+ /* allocate inflate state */
+ strm.zalloc = Z_NULL;
+ strm.zfree = Z_NULL;
+ strm.opaque = Z_NULL;
+ strm.avail_in = Z_NULL;
+ strm.next_in = Z_NULL;
+ strm.avail_in = m_BufferSize;
+ strm.avail_out = Z_NULL;
+ strm.next_in = (Bytef*)m_Buffer;
+ strm.next_out = Z_NULL;
+ strm.avail_out = MAXNBTSIZE;
+ strm.next_out = out;
+ strm.total_in = 0;
+ strm.total_out = 0;
+
+ ret = inflateInit2(&strm, 16+MAX_WBITS);
+ if (ret != Z_OK)
+ {
+ printf("inflateInit2 returned NOT OK\n");
+ delete out;
+ return false;
+ }
+
+ if( (ret = inflate(&strm, Z_NO_FLUSH)) != Z_STREAM_END)
+ {
+ assert(ret != Z_STREAM_ERROR); /* state not clobbered */
+ printf("ret != Z_STREAM_END\n");
+ }
+ unsigned UncompressedSize = strm.total_out; //MAXNBTSIZE - strm.avail_out;
+
+ m_Buffer = new char[ UncompressedSize ];
+ memcpy( m_Buffer, out, UncompressedSize );
+ m_BufferSize = UncompressedSize;
+
+ inflateEnd(&strm);
+ delete [] out;
+
+ if( ret != Z_STREAM_END )
+ {
+ printf("WARNING: NBT Data received was too big! (More than %i bytes)\n", MAXNBTSIZE);
+ }
+
+ //printf("Decompressed Size: %i\n", UncompressedSize );
+ m_bDecompressed = true;
+ return (ret == Z_STREAM_END) ? true : false;
+}
+
+void cNBTCompound::AppendShort( std::string & a_Buffer, short a_Value )
+{
+ a_Buffer.push_back( (char)((a_Value>>8)&0xff) );
+ a_Buffer.push_back( (char)((a_Value)&0xff) );
+}
+
+void cNBTCompound::AppendInteger( std::string & a_Buffer, int a_Value )
+{
+ int NetVal = htonl( a_Value );
+ a_Buffer.append( (char*)&NetVal, sizeof( int ) );
+}
+
+void cNBTCompound::Serialize(std::string & a_Buffer)
+{
+ //printf("cNBTCompound::Serialize()\n");
+ for( CompoundMap::iterator itr = m_Compounds.begin(); itr != m_Compounds.end(); itr++ )
+ {
+ if( itr->second == 0 ) continue;
+ a_Buffer.push_back( TAG_Compound );
+ AppendShort( a_Buffer, (short)itr->first.size() );
+ if( itr->first.size() > 0 )
+ {
+ a_Buffer.append( itr->first.c_str(), itr->first.size() );
+ }
+ itr->second->Serialize( a_Buffer );
+ a_Buffer.push_back( TAG_End );
+ }
+
+ for( ListMap::iterator itr = m_Lists.begin(); itr != m_Lists.end(); itr++ )
+ {
+ if( itr->second == 0 ) continue;
+ a_Buffer.push_back( TAG_List );
+ AppendShort( a_Buffer, (short)itr->first.size() );
+ if( itr->first.size() > 0 )
+ {
+ a_Buffer.append( itr->first.c_str(), itr->first.size() );
+ }
+ a_Buffer.push_back( (char)itr->second->GetType() );
+ AppendInteger( a_Buffer, itr->second->GetSize() );
+ itr->second->Serialize( a_Buffer );
+ }
+
+ for( IntegerMap::iterator itr = m_Integers.begin(); itr != m_Integers.end(); itr++ )
+ {
+ a_Buffer.push_back( TAG_Int );
+ AppendShort( a_Buffer, (short)itr->first.size() );
+ if( itr->first.size() > 0 )
+ {
+ a_Buffer.append( itr->first.c_str(), itr->first.size() );
+ }
+ AppendInteger( a_Buffer, itr->second );
+ }
+
+ for( ShortMap::iterator itr = m_Shorts.begin(); itr != m_Shorts.end(); itr++ )
+ {
+ a_Buffer.push_back( TAG_Short );
+ AppendShort( a_Buffer, (short)itr->first.size() );
+ if( itr->first.size() > 0 )
+ {
+ a_Buffer.append( itr->first.c_str(), itr->first.size() );
+ }
+ AppendShort( a_Buffer, itr->second );
+ }
+
+ for( ByteMap::iterator itr = m_Bytes.begin(); itr != m_Bytes.end(); itr++ )
+ {
+ a_Buffer.push_back( TAG_Byte );
+ AppendShort( a_Buffer, (short)itr->first.size() );
+ if( itr->first.size() > 0 )
+ {
+ a_Buffer.append( itr->first.c_str(), itr->first.size() );
+ }
+ a_Buffer.push_back( itr->second );
+ }
+}
+
+void cNBTCompound::PrintData( int a_Depth, std::string a_Name )
+{
+ char* Prefix = new char[a_Depth*4+1];
+ for(int i = 0; i < a_Depth*4; i++)
+ Prefix[i] = ' ';
+ Prefix[ a_Depth*4 ] = 0;
+
+ if( a_Name.size() > 0 )
+ printf("%s COMPOUND (%s)\n", Prefix, a_Name.c_str() );
+ else
+ printf("%s COMPOUND\n", Prefix );
+
+ delete Prefix;
+ a_Depth++;
+ Prefix = new char[a_Depth*4];
+ for(int i = 0; i < a_Depth*4; i++)
+ Prefix[i] = ' ';
+ Prefix[ a_Depth*4-1 ] = 0;
+
+ for( CompoundMap::iterator itr = m_Compounds.begin(); itr != m_Compounds.end(); itr++ )
+ {
+ if( itr->second == 0 ) continue;
+ itr->second->PrintData( a_Depth, itr->first );
+ }
+
+ for( ListMap::iterator itr = m_Lists.begin(); itr != m_Lists.end(); itr++)
+ {
+ if( itr->second == 0 ) continue;
+ itr->second->PrintData( a_Depth, itr->first );
+ }
+
+ for( IntegerMap::iterator itr = m_Integers.begin(); itr != m_Integers.end(); itr++ )
+ {
+ printf("%s INTEGER %s (%i)\n", Prefix, itr->first.c_str(), itr->second );
+ }
+
+ for( ShortMap::iterator itr = m_Shorts.begin(); itr != m_Shorts.end(); itr++ )
+ {
+ printf("%s SHORT %s (%i)\n", Prefix, itr->first.c_str(), itr->second );
+ }
+
+ for( ByteMap::iterator itr = m_Bytes.begin(); itr != m_Bytes.end(); itr++ )
+ {
+ printf("%s BYTE %s (%i)\n", Prefix, itr->first.c_str(), itr->second );
+ }
+
+ delete Prefix;
+}
+
+void cNBTData::PrintData()
+{
+ printf("==== STRUCTURED NBT DATA ====\n");
+ m_CurrentCompound->PrintData( 0, " " );
+ printf("=============================\n");
+}
+
+void cNBTData::Serialize()
+{
+ std::string Buffer;
+ m_CurrentCompound->Serialize( Buffer );
+
+ if( m_Buffer )
+ delete m_Buffer;
+ m_Buffer = new char[Buffer.size()];
+ memcpy( m_Buffer, Buffer.c_str(), Buffer.size() );
+ m_BufferSize = Buffer.size();
+
+// for(unsigned int i = 0; i < m_BufferSize; i++)
+// {
+// printf("%02i %02x %3i %c\n", i, (unsigned char)m_Buffer[i], (unsigned char)m_Buffer[i], m_Buffer[i] );
+// }
+}
+
+void cNBTData::ParseData()
+{
+ if(!m_bDecompressed)
+ {
+ printf("WARNING: ParseData() called while data was not decompressed\n");
+ return;
+ }
+
+ m_Index = 0;
+// printf("cNBTData::ParseData()\n");
+// for(unsigned int i = 0; i < m_BufferSize; i++)
+// {
+// printf("%02i %02x %3i %c\n", i, (unsigned char)m_Buffer[i], (unsigned char)m_Buffer[i], m_Buffer[i] );
+// }
+
+ while( m_Index < m_BufferSize )
+ {
+ ParseTags();
+ }
+}
+
+void cNBTData::ParseTags()
+{
+ if( m_Index < m_BufferSize )
+ {
+ //printf("ParseTags idx:%02i %02x %3i %c\n", m_Index, (unsigned char)m_Buffer[m_Index], (unsigned char)m_Buffer[m_Index], m_Buffer[m_Index] );
+ unsigned char Tag = m_Buffer[m_Index];
+ if( Tag > 0 && m_ParseFunctions[ Tag ] )
+ {
+ m_Index++;
+ (*this.*m_ParseFunctions[ Tag ])(true);
+ }
+ else if( Tag == TAG_End )
+ {
+ m_Index++;
+ }
+ else
+ {
+ printf("UNKNOWN TAG %x\n", m_Buffer[m_Index] );
+ for(unsigned int i = (m_Index-10 > 0)?m_Index-10:0 ; i < m_Index+10 && i < m_BufferSize; i++)
+ {
+ printf("%02i %02x %3i %c\n", i, (unsigned char)m_Buffer[i], (unsigned char)m_Buffer[i], m_Buffer[i] );
+ }
+ m_Index = m_BufferSize;
+ return;
+ }
+ }
+}
+
+void cNBTData::ParseCompound( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ //printf("OPEN COMPOUND: %s\n", Name.c_str() );
+
+ PutCompound( Name );
+ OpenCompound( Name );
+ while( m_Index < m_BufferSize && m_Buffer[ m_Index ] != TAG_End )
+ {
+ ParseTags();
+ }
+ CloseCompound();
+ //printf("CLOSE COMPOUND\n");
+}
+
+void cNBTData::ParseList( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ ENUM_TAG TagType = (ENUM_TAG)ReadByte();
+ int Length = ReadInt();
+ //printf("LIST: %s Type: %02x Length: %i\n", Name.c_str(), TagType, Length );
+
+// for(unsigned int i = (m_Index-10 > 0)?m_Index-10:0 ; i < m_Index+10 && i < m_BufferSize; i++)
+// {
+// printf("%02i %02x %3i %c\n", i, (unsigned char)m_Buffer[i], (unsigned char)m_Buffer[i], m_Buffer[i] );
+// }
+
+ PutList( Name, TagType );
+ OpenList( Name );
+ for(int i = 0; i < Length && m_Index < m_BufferSize; i++)
+ {
+ if( m_ParseFunctions[ TagType ] )
+ {
+ (*this.*m_ParseFunctions[ TagType ] )(false);
+ m_Index++;
+ }
+ }
+ CloseList();
+
+}
+
+void cNBTData::ParseByte( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ char Value = ReadByte();
+
+ PutByte( Name, Value );
+
+ //printf("BYTE: %s %i\n", Name.c_str(), Value );
+}
+
+void cNBTData::ParseShort( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ short Value = ReadShort();
+
+ PutShort( Name, Value );
+
+ //printf("SHORT: %s %i\n", Name.c_str(), Value );
+}
+
+void cNBTData::ParseInt( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ int Value = ReadInt();
+
+ PutInteger( Name, Value );
+
+ //printf("INT: %s %i\n", Name.c_str(), Value );
+}
+
+void cNBTData::ParseString( bool a_bNamed )
+{
+ std::string Name;
+ if( a_bNamed ) Name = ReadName();
+ std::string String = ReadName();
+
+ PutString( Name, String );
+
+ //printf("STRING: %s (%s)\n", Name.c_str(), String.c_str() );
+}
+
+std::string cNBTData::ReadName()
+{
+ short Length = ReadShort();
+
+ std::string Name;
+ if( Length > 0 )
+ {
+ for(int i = 0; i < Length; i++, m_Index++)
+ {
+ Name.push_back( m_Buffer[m_Index] );
+ }
+ }
+ return Name;
+}
+
+char cNBTData::ReadByte()
+{
+ unsigned char Byte = m_Buffer[ m_Index ]; m_Index++;
+ return Byte;
+}
+
+short cNBTData::ReadShort()
+{
+ short Length = 0;
+ Length |= m_Buffer[ m_Index ] << 8; m_Index++;
+ Length |= m_Buffer[ m_Index ]; m_Index++;
+ return Length;
+}
+
+int cNBTData::ReadInt()
+{
+ int Value = 0;
+ memcpy( &Value, m_Buffer+m_Index, sizeof(int) );
+ m_Index+=sizeof(int);
+
+ return ntohl( Value );
+}
+
+void cNBTCompound::PutList( std::string Name, ENUM_TAG Type )
+{
+ m_Lists[Name] = new cNBTList( m_CurrentList, Type );
+}
+
+void cNBTCompound::PutCompound( std::string Name )
+{
+ if( m_CurrentList )
+ {
+ m_CurrentList->AddToList( new cNBTCompound( this ) );
+ }
+ else
+ {
+ m_Compounds[Name] = new cNBTCompound( this );
+ }
+}
+
+cNBTCompound* cNBTCompound::GetCompound( std::string Name )
+{
+ if( m_CurrentList )
+ {
+ if( m_CurrentList->GetType() != TAG_Compound )
+ return 0;
+
+ return (cNBTCompound*)m_CurrentList->GetLastElement();
+ }
+ return m_Compounds[Name];
+}
+
+void cNBTList::PrintData(int a_Depth, std::string a_Name)
+{
+ char* Prefix = new char[a_Depth*4];
+ for(int i = 0; i < a_Depth*4; i++)
+ Prefix[i] = ' ';
+ Prefix[ a_Depth*4-1 ] = 0;
+
+ if( a_Name.size() > 0 )
+ printf("%s LIST (%s)\n", Prefix, a_Name.c_str() );
+ else
+ printf("%s LIST\n", Prefix );
+
+ delete [] Prefix;
+
+ for( VoidList::iterator itr = m_List.begin(); itr != m_List.end(); itr++)
+ {
+ switch( m_Type )
+ {
+ case cNBTCompound::TAG_Compound:
+ {
+ ((cNBTCompound*)*itr)->PrintData(a_Depth+1, "...");
+ }
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void cNBTList::Serialize(std::string & a_Buffer)
+{
+ for( VoidList::iterator itr = m_List.begin(); itr != m_List.end(); itr++ )
+ {
+ switch( m_Type )
+ {
+ case cNBTCompound::TAG_Compound:
+ {
+ ((cNBTCompound*)(*itr))->Serialize( a_Buffer );
+ a_Buffer.push_back( cNBTCompound::TAG_End );
+ }
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void cNBTData::Clear()
+{
+ while( m_CurrentCompound != this ) CloseCompound();
+ m_CurrentCompound->Clear();
+
+ if( m_Buffer )
+ {
+ delete m_Buffer;
+ m_Buffer = 0;
+ }
+ m_BufferSize = 0;
+}
+
+void cNBTCompound::Clear()
+{
+ for( CompoundMap::iterator itr = m_Compounds.begin(); itr != m_Compounds.end(); itr++ )
+ {
+ if( itr->second == 0 ) continue;
+ itr->second->Clear();
+ delete itr->second;
+ itr->second = 0;
+ }
+ m_Compounds.clear();
+
+ for( ListMap::iterator itr = m_Lists.begin(); itr != m_Lists.end(); itr++ )
+ {
+ if( itr->second == 0 ) continue;
+ itr->second->Clear();
+ delete itr->second;
+ itr->second = 0;
+ }
+ m_Lists.clear();
+ m_Bytes.clear();
+ m_Shorts.clear();
+ m_Integers.clear();
+ m_Strings.clear();
+}
+
+void cNBTList::Clear()
+{
+ for( VoidList::iterator itr = m_List.begin(); itr != m_List.end(); itr++)
+ {
+ switch( m_Type )
+ {
+ case cNBTCompound::TAG_Compound:
+ {
+ cNBTCompound* Compound = (cNBTCompound*)(*itr);
+ Compound->Clear();
+ delete Compound;
+ *itr = 0;
+ }
+ break;
+ case cNBTCompound::TAG_List:
+ {
+ cNBTList* List = (cNBTList*)(*itr);
+ List->Clear();
+ delete List;
+ *itr = 0;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ m_List.clear();
+}