mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-12-26 23:43:34 +00:00
296 lines
9.1 KiB
C++
296 lines
9.1 KiB
C++
#include "TableSerializer.h"
|
|
#include "DS_Table.h"
|
|
#include "BitStream.h"
|
|
#include "StringCompressor.h"
|
|
#include "RakAssert.h"
|
|
|
|
void TableSerializer::SerializeTable(DataStructures::Table *in, RakNet::BitStream *out)
|
|
{
|
|
DataStructures::Page<unsigned, DataStructures::Table::Row*, _TABLE_BPLUS_TREE_ORDER> *cur = in->GetRows().GetListHead();
|
|
DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns=in->GetColumns();
|
|
SerializeColumns(in, out);
|
|
out->Write((unsigned)in->GetRows().Size());
|
|
unsigned rowIndex;
|
|
while (cur)
|
|
{
|
|
for (rowIndex=0; rowIndex < (unsigned)cur->size; rowIndex++)
|
|
{
|
|
SerializeRow(cur->data[rowIndex], cur->keys[rowIndex], columns, out);
|
|
}
|
|
cur=cur->next;
|
|
}
|
|
}
|
|
void TableSerializer::SerializeColumns(DataStructures::Table *in, RakNet::BitStream *out)
|
|
{
|
|
DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns=in->GetColumns();
|
|
out->Write((unsigned)columns.Size());
|
|
unsigned i;
|
|
for (i=0; i<columns.Size(); i++)
|
|
{
|
|
stringCompressor->EncodeString(columns[i].columnName, _TABLE_MAX_COLUMN_NAME_LENGTH, out);
|
|
out->Write((unsigned char)columns[i].columnType);
|
|
}
|
|
}
|
|
void TableSerializer::SerializeColumns(DataStructures::Table *in, RakNet::BitStream *out, DataStructures::List<int> &skipColumnIndices)
|
|
{
|
|
DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns=in->GetColumns();
|
|
out->Write((unsigned)columns.Size()-skipColumnIndices.Size());
|
|
unsigned i;
|
|
for (i=0; i<columns.Size(); i++)
|
|
{
|
|
if (skipColumnIndices.GetIndexOf(i)==(unsigned)-1)
|
|
{
|
|
stringCompressor->EncodeString(columns[i].columnName, _TABLE_MAX_COLUMN_NAME_LENGTH, out);
|
|
out->Write((unsigned char)columns[i].columnType);
|
|
}
|
|
}
|
|
}
|
|
bool TableSerializer::DeserializeTable(unsigned char *serializedTable, unsigned int dataLength, DataStructures::Table *out)
|
|
{
|
|
RakNet::BitStream in((unsigned char*) serializedTable, dataLength, false);
|
|
return DeserializeTable(&in, out);
|
|
}
|
|
bool TableSerializer::DeserializeTable(RakNet::BitStream *in, DataStructures::Table *out)
|
|
{
|
|
unsigned rowSize;
|
|
DeserializeColumns(in,out);
|
|
if (in->Read(rowSize)==false || rowSize>100000)
|
|
return false; // Hacker crash prevention
|
|
|
|
unsigned rowIndex;
|
|
for (rowIndex=0; rowIndex < rowSize; rowIndex++)
|
|
{
|
|
if (DeserializeRow(in, out)==false)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
bool TableSerializer::DeserializeColumns(RakNet::BitStream *in, DataStructures::Table *out)
|
|
{
|
|
unsigned columnSize;
|
|
unsigned char columnType;
|
|
char columnName[_TABLE_MAX_COLUMN_NAME_LENGTH];
|
|
if (in->Read(columnSize)==false || columnSize > 10000)
|
|
return false; // Hacker crash prevention
|
|
|
|
out->Clear();
|
|
unsigned i;
|
|
for (i=0; i<columnSize; i++)
|
|
{
|
|
stringCompressor->DecodeString(columnName, 32, in);
|
|
in->Read(columnType);
|
|
out->AddColumn(columnName, (DataStructures::Table::ColumnType)columnType);
|
|
}
|
|
return true;
|
|
}
|
|
void TableSerializer::SerializeRow(DataStructures::Table::Row *in, unsigned keyIn, DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns, RakNet::BitStream *out)
|
|
{
|
|
unsigned cellIndex;
|
|
out->Write(keyIn);
|
|
for (cellIndex=0; cellIndex<columns.Size(); cellIndex++)
|
|
{
|
|
SerializeCell(out, in->cells[cellIndex], columns[cellIndex].columnType);
|
|
}
|
|
}
|
|
void TableSerializer::SerializeRow(DataStructures::Table::Row *in, unsigned keyIn, DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns, RakNet::BitStream *out, DataStructures::List<int> &skipColumnIndices)
|
|
{
|
|
unsigned cellIndex;
|
|
out->Write(keyIn);
|
|
for (cellIndex=0; cellIndex<columns.Size(); cellIndex++)
|
|
{
|
|
if (skipColumnIndices.GetIndexOf(cellIndex)==(unsigned)-1)
|
|
{
|
|
SerializeCell(out, in->cells[cellIndex], columns[cellIndex].columnType);
|
|
}
|
|
}
|
|
}
|
|
bool TableSerializer::DeserializeRow(RakNet::BitStream *in, DataStructures::Table *out)
|
|
{
|
|
DataStructures::List<DataStructures::Table::ColumnDescriptor> &columns=out->GetColumns();
|
|
unsigned cellIndex;
|
|
DataStructures::Table::Row *row;
|
|
unsigned key;
|
|
if (in->Read(key)==false)
|
|
return false;
|
|
row=out->AddRow(key);
|
|
for (cellIndex=0; cellIndex<columns.Size(); cellIndex++)
|
|
{
|
|
if (DeserializeCell(in, row->cells[cellIndex], columns[cellIndex].columnType)==false)
|
|
{
|
|
out->RemoveRow(key);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
void TableSerializer::SerializeCell(RakNet::BitStream *out, DataStructures::Table::Cell *cell, DataStructures::Table::ColumnType columnType)
|
|
{
|
|
out->Write(cell->isEmpty);
|
|
if (cell->isEmpty==false)
|
|
{
|
|
if (columnType==DataStructures::Table::NUMERIC)
|
|
{
|
|
out->Write(cell->i);
|
|
}
|
|
else if (columnType==DataStructures::Table::STRING)
|
|
{
|
|
stringCompressor->EncodeString(cell->c, 65535, out);
|
|
}
|
|
else if (columnType==DataStructures::Table::POINTER)
|
|
{
|
|
out->Write(cell->ptr);
|
|
}
|
|
else
|
|
{
|
|
// Binary
|
|
assert(columnType==DataStructures::Table::BINARY);
|
|
RakAssert(cell->i>0);
|
|
out->Write((unsigned)cell->i);
|
|
out->WriteAlignedBytes((const unsigned char*) cell->c, cell->i);
|
|
}
|
|
}
|
|
}
|
|
bool TableSerializer::DeserializeCell(RakNet::BitStream *in, DataStructures::Table::Cell *cell, DataStructures::Table::ColumnType columnType)
|
|
{
|
|
bool isEmpty;
|
|
int value;
|
|
void *ptr;
|
|
char tempString[65535];
|
|
cell->Clear();
|
|
|
|
if (in->Read(isEmpty)==false)
|
|
return false;
|
|
if (isEmpty==false)
|
|
{
|
|
if (columnType==DataStructures::Table::NUMERIC)
|
|
{
|
|
if (in->Read(value)==false)
|
|
return false;
|
|
cell->Set(value);
|
|
}
|
|
else if (columnType==DataStructures::Table::STRING)
|
|
{
|
|
if (stringCompressor->DecodeString(tempString, 65535, in)==false)
|
|
return false;
|
|
cell->Set(tempString);
|
|
}
|
|
else if (columnType==DataStructures::Table::POINTER)
|
|
{
|
|
if (in->Read(ptr)==false)
|
|
return false;
|
|
cell->SetPtr(ptr);
|
|
}
|
|
else
|
|
{
|
|
// Binary
|
|
assert(columnType==DataStructures::Table::BINARY);
|
|
if (in->Read(value)==false || value > 10000000)
|
|
return false; // Sanity check to max binary cell of 10 megabytes
|
|
in->AlignReadToByteBoundary();
|
|
if (BITS_TO_BYTES(in->GetNumberOfUnreadBits())<(BitSize_t)value)
|
|
return false;
|
|
cell->Set((char*) in->GetData()+BITS_TO_BYTES(in->GetReadOffset()), value);
|
|
in->IgnoreBits(BYTES_TO_BITS(value));
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
void TableSerializer::SerializeFilterQuery(RakNet::BitStream *in, DataStructures::Table::FilterQuery *query)
|
|
{
|
|
stringCompressor->EncodeString(query->columnName,_TABLE_MAX_COLUMN_NAME_LENGTH,in,0);
|
|
in->WriteCompressed(query->columnIndex);
|
|
in->Write((unsigned char) query->operation);
|
|
in->Write(query->cellValue->isEmpty);
|
|
if (query->cellValue->isEmpty==false)
|
|
{
|
|
in->WriteAlignedBytesSafe((const char*)query->cellValue->c,query->cellValue->i,10000000); // Sanity check to max binary cell of 10 megabytes
|
|
in->Write(query->cellValue->i);
|
|
in->Write(query->cellValue->ptr);
|
|
|
|
}
|
|
}
|
|
bool TableSerializer::DeserializeFilterQuery(RakNet::BitStream *out, DataStructures::Table::FilterQuery *query)
|
|
{
|
|
bool b;
|
|
RakAssert(query->cellValue);
|
|
stringCompressor->DecodeString(query->columnName,_TABLE_MAX_COLUMN_NAME_LENGTH,out,0);
|
|
out->ReadCompressed(query->columnIndex);
|
|
unsigned char op;
|
|
out->Read(op);
|
|
query->operation=(DataStructures::Table::FilterQueryType) op;
|
|
query->cellValue->Clear();
|
|
b=out->Read(query->cellValue->isEmpty);
|
|
if (query->cellValue->isEmpty==false)
|
|
{
|
|
// HACK - cellValue->i is used for integer, character, and binary data. However, for character and binary c will be 0. So use that to determine if the data was integer or not.
|
|
BitSize_t inputLength;
|
|
out->ReadAlignedBytesSafeAlloc(&query->cellValue->c,inputLength,10000000); // Sanity check to max binary cell of 10 megabytes
|
|
query->cellValue->i=(int) inputLength;
|
|
if (query->cellValue->c==0)
|
|
out->Read(query->cellValue->i);
|
|
else
|
|
out->IgnoreBytes(sizeof(query->cellValue->i));
|
|
b=out->Read(query->cellValue->ptr);
|
|
}
|
|
return b;
|
|
}
|
|
void TableSerializer::SerializeFilterQueryList(RakNet::BitStream *in, DataStructures::Table::FilterQuery *query, unsigned int numQueries, unsigned int maxQueries)
|
|
{
|
|
in->Write((bool)(query && numQueries>0));
|
|
if (query==0 || numQueries<=0)
|
|
return;
|
|
|
|
RakAssert(numQueries<=maxQueries);
|
|
in->WriteCompressed(numQueries);
|
|
unsigned i;
|
|
for (i=0; i < numQueries; i++)
|
|
{
|
|
SerializeFilterQuery(in, query);
|
|
}
|
|
}
|
|
bool TableSerializer::DeserializeFilterQueryList(RakNet::BitStream *out, DataStructures::Table::FilterQuery **query, unsigned int *numQueries, unsigned int maxQueries, int allocateExtraQueries)
|
|
{
|
|
bool b, anyQueries=false;
|
|
out->Read(anyQueries);
|
|
if (anyQueries==false)
|
|
{
|
|
if (allocateExtraQueries<=0)
|
|
*query=0;
|
|
else
|
|
*query=new DataStructures::Table::FilterQuery[allocateExtraQueries];
|
|
|
|
*numQueries=0;
|
|
return true;
|
|
}
|
|
b=out->ReadCompressed(*numQueries);
|
|
if (*numQueries>maxQueries)
|
|
{
|
|
RakAssert(0);
|
|
*numQueries=maxQueries;
|
|
}
|
|
if (*numQueries==0)
|
|
return b;
|
|
|
|
*query=new DataStructures::Table::FilterQuery[*numQueries+allocateExtraQueries];
|
|
DataStructures::Table::FilterQuery *queryPtr = *query;
|
|
|
|
unsigned i;
|
|
for (i=0; i < *numQueries; i++)
|
|
{
|
|
queryPtr[i].cellValue=new DataStructures::Table::Cell;
|
|
b=DeserializeFilterQuery(out, queryPtr+i);
|
|
}
|
|
|
|
return b;
|
|
}
|
|
void TableSerializer::DeallocateQueryList(DataStructures::Table::FilterQuery *query, unsigned int numQueries)
|
|
{
|
|
if (query==0 || numQueries==0)
|
|
return;
|
|
|
|
unsigned i;
|
|
for (i=0; i < numQueries; i++)
|
|
delete query[i].cellValue;
|
|
delete [] query;
|
|
}
|