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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ByteBuffer.h"
#include "Errors.h"
#include "MessageBuffer.h"
#include "Common.h"
#include "Log.h"
#include "Util.h"
#include <utf8.h>
#include <sstream>
#include <ctime>
ByteBuffer::ByteBuffer(MessageBuffer&& buffer) : _rpos(0), _wpos(0), _storage(buffer.Move())
{
}
ByteBufferPositionException::ByteBufferPositionException(bool add, size_t pos,
size_t size, size_t valueSize)
{
std::ostringstream ss;
ss << "Attempted to " << (add ? "put" : "get") << " value with size: "
<< valueSize << " in ByteBuffer (pos: " << pos << " size: " << size
<< ")";
message().assign(ss.str());
}
ByteBufferSourceException::ByteBufferSourceException(size_t pos, size_t size,
size_t valueSize)
{
std::ostringstream ss;
ss << "Attempted to put a "
<< (valueSize > 0 ? "NULL-pointer" : "zero-sized value")
<< " in ByteBuffer (pos: " << pos << " size: " << size << ")";
message().assign(ss.str());
}
ByteBufferInvalidValueException::ByteBufferInvalidValueException(char const* type, char const* value)
{
message().assign(Trinity::StringFormat("Invalid %s value (%s) found in ByteBuffer", type, value));
}
ByteBuffer& ByteBuffer::operator>>(float& value)
{
value = read<float>();
if (!std::isfinite(value))
throw ByteBufferInvalidValueException("float", "infinity");
return *this;
}
ByteBuffer& ByteBuffer::operator>>(double& value)
{
value = read<double>();
if (!std::isfinite(value))
throw ByteBufferInvalidValueException("double", "infinity");
return *this;
}
std::string ByteBuffer::ReadCString(bool requireValidUtf8 /*= true*/)
{
std::string value;
while (rpos() < size()) // prevent crash at wrong string format in packet
{
char c = read<char>();
if (c == 0)
break;
value += c;
}
if (requireValidUtf8 && !utf8::is_valid(value.begin(), value.end()))
throw ByteBufferInvalidValueException("string", value.c_str());
return value;
}
uint32 ByteBuffer::ReadPackedTime()
{
uint32 packedDate = read<uint32>();
tm lt = tm();
lt.tm_min = packedDate & 0x3F;
lt.tm_hour = (packedDate >> 6) & 0x1F;
//lt.tm_wday = (packedDate >> 11) & 7;
lt.tm_mday = ((packedDate >> 14) & 0x3F) + 1;
lt.tm_mon = (packedDate >> 20) & 0xF;
lt.tm_year = ((packedDate >> 24) & 0x1F) + 100;
return uint32(mktime(<));
}
void ByteBuffer::append(uint8 const* src, size_t cnt)
{
ASSERT(src, "Attempted to put a NULL-pointer in ByteBuffer (pos: " SZFMTD " size: " SZFMTD ")", _wpos, size());
ASSERT(cnt, "Attempted to put a zero-sized value in ByteBuffer (pos: " SZFMTD " size: " SZFMTD ")", _wpos, size());
ASSERT(size() < 10000000);
size_t const newSize = _wpos + cnt;
if (_storage.capacity() < newSize) // custom memory allocation rules
{
if (newSize < 100)
_storage.reserve(300);
else if (newSize < 750)
_storage.reserve(2500);
else if (newSize < 6000)
_storage.reserve(10000);
else
_storage.reserve(400000);
}
if (_storage.size() < newSize)
_storage.resize(newSize);
std::memcpy(&_storage[_wpos], src, cnt);
_wpos = newSize;
}
void ByteBuffer::AppendPackedTime(time_t time)
{
tm lt;
localtime_r(&time, <);
append<uint32>((lt.tm_year - 100) << 24 | lt.tm_mon << 20 | (lt.tm_mday - 1) << 14 | lt.tm_wday << 11 | lt.tm_hour << 6 | lt.tm_min);
}
void ByteBuffer::put(size_t pos, uint8 const* src, size_t cnt)
{
ASSERT(pos + cnt <= size(), "Attempted to put value with size: " SZFMTD " in ByteBuffer (pos: " SZFMTD " size: " SZFMTD ")", cnt, pos, size());
ASSERT(src, "Attempted to put a NULL-pointer in ByteBuffer (pos: " SZFMTD " size: " SZFMTD ")", pos, size());
ASSERT(cnt, "Attempted to put a zero-sized value in ByteBuffer (pos: " SZFMTD " size: " SZFMTD ")", pos, size());
std::memcpy(&_storage[pos], src, cnt);
}
void ByteBuffer::print_storage() const
{
if (!sLog->ShouldLog("network", LOG_LEVEL_TRACE)) // optimize disabled trace output
return;
std::ostringstream o;
o << "STORAGE_SIZE: " << size();
for (uint32 i = 0; i < size(); ++i)
o << read<uint8>(i) << " - ";
o << " ";
TC_LOG_TRACE("network", "%s", o.str().c_str());
}
void ByteBuffer::textlike() const
{
if (!sLog->ShouldLog("network", LOG_LEVEL_TRACE)) // optimize disabled trace output
return;
std::ostringstream o;
o << "STORAGE_SIZE: " << size();
for (uint32 i = 0; i < size(); ++i)
{
char buf[2];
snprintf(buf, 2, "%c", read<uint8>(i));
o << buf;
}
o << " ";
TC_LOG_TRACE("network", "%s", o.str().c_str());
}
void ByteBuffer::hexlike() const
{
if (!sLog->ShouldLog("network", LOG_LEVEL_TRACE)) // optimize disabled trace output
return;
uint32 j = 1, k = 1;
std::ostringstream o;
o << "STORAGE_SIZE: " << size();
for (uint32 i = 0; i < size(); ++i)
{
char buf[3];
snprintf(buf, 3, "%2X", read<uint8>(i));
if ((i == (j * 8)) && ((i != (k * 16))))
{
o << "| ";
++j;
}
else if (i == (k * 16))
{
o << "\n";
++k;
++j;
}
o << buf;
}
o << " ";
TC_LOG_TRACE("network", "%s", o.str().c_str());
}
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