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/*
* Copyright (c) 2015-2018 Nitrokey UG
*
* This file is part of libnitrokey.
*
* libnitrokey 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
* any later version.
*
* libnitrokey 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 Lesser General Public License
* along with libnitrokey. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-3.0
*/
#include "log.h"
#include <iostream>
#include <ctime>
#include <iomanip>
#include <sstream>
namespace nitrokey {
namespace log {
Log *Log::mp_instance = nullptr;
StdlogHandler stdlog_handler;
std::string Log::prefix = "";
std::string LogHandler::loglevel_to_str(Loglevel lvl) {
switch (lvl) {
case Loglevel::DEBUG_L1:
return std::string("DEBUG_L1");
case Loglevel::DEBUG_L2:
return std::string("DEBUG_L2");
case Loglevel::DEBUG:
return std::string("DEBUG");
case Loglevel::INFO:
return std::string("INFO");
case Loglevel::WARNING:
return std::string("WARNING");
case Loglevel::ERROR:
return std::string("ERROR");
}
return std::string("");
}
void Log::operator()(const std::string &logstr, Loglevel lvl) {
if (mp_loghandler != nullptr){
if ((int) lvl <= (int) m_loglevel) mp_loghandler->print(prefix+logstr, lvl);
}
}
void Log::setPrefix(const std::string prefix) {
if (!prefix.empty()){
Log::prefix = "["+prefix+"]";
} else {
Log::prefix = "";
}
}
void StdlogHandler::print(const std::string &str, Loglevel lvl) {
std::string s = format_message_to_string(str, lvl);
std::clog << s;
}
void FunctionalLogHandler::print(const std::string &str, Loglevel lvl) {
std::string s = format_message_to_string(str, lvl);
log_function(s);
}
std::string LogHandler::format_message_to_string(const std::string &str, const Loglevel &lvl) {
static bool last_short = false;
if (str.length() == 1){
last_short = true;
return str;
}
time_t t = time(nullptr);
tm tm = *localtime(&t);
std::stringstream s;
s
<< (last_short? "\n" : "")
<< "[" << std::put_time(&tm, "%c") << "]"
<< "[" << loglevel_to_str(lvl) << "]\t"
<< str << std::endl;
last_short = false;
return s.str();
}
FunctionalLogHandler::FunctionalLogHandler(log_function_type _log_function) {
log_function = _log_function;
}
}
}
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