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/*
Copyright © 2015 Gluzskiy Alexandr (sss)
This file is part of Unknown Download Manager (UDM).
UDM 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.
UDM 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 UDM. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/log/trivial.hpp>
#include <boost/random.hpp>
#include <boost/nondet_random.hpp>
#include "utilities.h"
#include "../../protocol/udm.pb.h"
std::string replace_home_var(const std::string &path)
{
std::string home = getenv("HOME"), tmp_path = path;
for(std::string::size_type p1 = tmp_path.find("~"); p1 != std::string::npos; p1 = tmp_path.find("~", p1))
tmp_path.replace(p1, 1, home);
return tmp_path;
}
std::shared_ptr<char*> pack_data(const std::string &buf, int *size_)
{
BOOST_LOG_TRIVIAL(debug)<<__FILE__<<":"<<__LINE__<<"\t"<<__func__;
std::shared_ptr<char*> ptr = std::make_shared<char*>(new char[buf.length() + 4]);
int32_t size = buf.length();
*size_ = size + 4;
(*ptr)[3] = size & 0xff;
(*ptr)[2] = (size>>8) & 0xff;
(*ptr)[1] = (size>>16) & 0xff;
(*ptr)[0] = (size>>24) & 0xff;
char *fck = (*ptr)+4;
memcpy(fck, buf.data(), buf.length());
return ptr;
}
std::shared_ptr<char*> pack_msg(server_msg *msg, int *size_)
{
BOOST_LOG_TRIVIAL(debug)<<__FILE__<<":"<<__LINE__<<"\t"<<__func__;
BOOST_LOG_TRIVIAL(trace)<<"packing message:\n"<<msg->DebugString();
std::string msg_buf;
msg->SerializeToString(&msg_buf);
return pack_data(msg_buf, size_);
}
std::string random_string(int length)
{
BOOST_LOG_TRIVIAL(debug)<<__FILE__<<":"<<__LINE__<<"\t"<<__func__;
std::string chars("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890");
std::string data;
boost::random_device rng;
boost::variate_generator<boost::random_device&, boost::uniform_int<>> gen(rng, boost::uniform_int<>(0, (int)chars.length()-1));
for(int i = 0; i < length; ++i)
data += chars[gen()];
return data;
}
std::string generate_auth_token()
{
return random_string(64);
}
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