libgourou/src/bytearray.cpp

174 lines
3.7 KiB
C++

/*
Copyright 2021 Grégory Soutadé
This file is part of libgourou.
libgourou is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
libgourou 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with libgourou. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <base64/Base64.h>
#include <bytearray.h>
namespace gourou
{
std::map<const unsigned char*, int> ByteArray::refCounter;
ByteArray::ByteArray():_data(0), _length(0)
{}
ByteArray::ByteArray(const unsigned char* data, unsigned int length)
{
initData(data, length);
}
ByteArray::ByteArray(const char* data, int length)
{
if (length == -1)
length = strlen(data);
initData((const unsigned char*)data, (unsigned int) length);
}
ByteArray::ByteArray(const std::string& str)
{
initData((unsigned char*)str.c_str(), (unsigned int)str.length());
}
void ByteArray::initData(const unsigned char* data, unsigned int length)
{
_data = new unsigned char[length];
memcpy((void*)_data, data, length);
_length = length;
addRef();
}
ByteArray::ByteArray(const ByteArray& other)
{
this->_data = other._data;
this->_length = other._length;
addRef();
}
ByteArray& ByteArray::operator=(const ByteArray& other)
{
delRef();
this->_data = other._data;
this->_length = other._length;
addRef();
return *this;
}
ByteArray::~ByteArray()
{
delRef();
}
void ByteArray::addRef()
{
if (!_data) return;
if (refCounter.count(_data) == 0)
refCounter[_data] = 1;
else
refCounter[_data]++;
}
void ByteArray::delRef()
{
if (!_data) return;
if (refCounter[_data] == 1)
{
delete[] _data;
refCounter.erase(_data);
}
else
refCounter[_data]--;
}
ByteArray ByteArray::fromBase64(const ByteArray& other)
{
std::string b64;
macaron::Base64::Decode(std::string((char*)other._data, other._length), b64);
return ByteArray(b64);
}
ByteArray ByteArray::fromBase64(const char* data, int length)
{
std::string b64;
if (length == -1)
length = strlen(data);
macaron::Base64::Decode(std::string(data, length), b64);
return ByteArray(b64);
}
ByteArray ByteArray::fromBase64(const std::string& str)
{
return ByteArray::fromBase64(str.c_str(), str.length());
}
std::string ByteArray::toBase64()
{
return macaron::Base64::Encode(std::string((char*)_data, _length));
}
std::string ByteArray::toHex()
{
char* tmp = new char[_length*2+1];
for(int i=0; i<(int)_length; i++)
sprintf(&tmp[i*2], "%02x", _data[i]);
tmp[_length*2] = 0;
std::string res = tmp;
delete[] tmp;
return res;
}
void ByteArray::append(const unsigned char* data, unsigned int length)
{
const unsigned char* oldData = _data;
unsigned char* newData = new unsigned char[_length+length];
memcpy(newData, oldData, _length);
delRef();
memcpy(&newData[_length], data, length);
_length += length;
_data = newData;
addRef();
}
void ByteArray::append(unsigned char c) { append(&c, 1);}
void ByteArray::append(const char* str) { append((const unsigned char*)str, strlen(str));}
void ByteArray::append(const std::string& str) { append((const unsigned char*)str.c_str(), str.length()); }
}