#include <boost/archive/iterators/base64_from_binary.hpp>
#include <boost/archive/iterators/binary_from_base64.hpp>
#include <boost/archive/iterators/transform_width.hpp>

bool Base64Encode(const string& input, string* output) {
	typedef boost::archive::iterators::base64_from_binary<boost::archive::iterators::transform_width<string::const_iterator, 6, 8> > Base64EncodeIterator;
	stringstream result;
	copy(Base64EncodeIterator(input.begin()), Base64EncodeIterator(input.end()), ostream_iterator<char>(result));
	size_t equal_count = (3 - input.length() % 3) % 3;
	for (size_t i = 0; i < equal_count; i++) {
		result.put('=');
	}
	*output = result.str();
	return output->empty() == false;
}

bool Base64Decode(const std::string& input, std::string* output) {
	typedef boost::archive::iterators::transform_width<boost::archive::iterators::binary_from_base64<std::string::const_iterator>, 8, 6> Base64DecodeIterator;
	std::stringstream result;
	try {
		copy(Base64DecodeIterator(input.begin()), Base64DecodeIterator(input.end()), ostream_iterator<char>(result));
	}
	catch (...) {
		return false;
	}
	*output = result.str();
	return output->empty() == false;
}