fysxasteroids/engine/Utils.cc

56 lines
1.4 KiB
C++

#include "Utils.h"
#include <iostream>
#include <string>
#include <fstream>
#include <boost/filesystem.hpp>
#include <cstdlib>
#include <sha2.h>
std::string strip_whitespaces (const std::string input_str) {
if (input_str.size() == 0)
return input_str;
std::string result = input_str.substr(input_str.find_first_not_of (" \t\n\r"), input_str.size());
return result.substr (0, result.find_last_not_of(" \t\n\r") + 1);
}
bool create_dir (const std::string &dir_str) {
boost::filesystem::path dir_str_path(dir_str);
if(!boost::filesystem::is_directory (dir_str_path)) {
if (!boost::filesystem::create_directory(dir_str_path)) {
std::cerr << "Warning: could not create directory " << dir_str<< std::endl;
return false;
}
}
std::string test_file_path = dir_str;
test_file_path += "/fysxasteroids_write_test_delete_me.txt";
std::ofstream test_file (test_file_path.c_str(), std::ios_base::app);
if (!test_file) {
test_file.close();
std::cerr << "Warning: directory not writable! " << dir_str << std::endl;
return false;
} else {
test_file.close();
boost::filesystem::remove (test_file_path);
return true;
}
return false;
}
std::string sha256_hash (std::string input) {
char result_buf[64];
SHA256_CTX ctx256;
SHA256_Init(&ctx256);
SHA256_Update(&ctx256, (unsigned char*) input.c_str(), input.size());
SHA256_End (&ctx256, result_buf);
return std::string (result_buf, 64);
}