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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program 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 2.1 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ban.h"
#include <fstream>
#include "threading/mutex_auto_lock.h"
#include <sstream>
#include <set>
#include "util/strfnd.h"
#include "util/string.h"
#include "log.h"
#include "filesys.h"
BanManager::BanManager(const std::string &banfilepath):
m_banfilepath(banfilepath),
m_modified(false)
{
try{
load();
}
catch(SerializationError &e)
{
warningstream<<"BanManager: creating "
<<m_banfilepath<<std::endl;
}
}
BanManager::~BanManager()
{
save();
}
void BanManager::load()
{
MutexAutoLock lock(m_mutex);
infostream<<"BanManager: loading from "<<m_banfilepath<<std::endl;
std::ifstream is(m_banfilepath.c_str(), std::ios::binary);
if(is.good() == false)
{
infostream<<"BanManager: failed loading from "<<m_banfilepath<<std::endl;
throw SerializationError("BanManager::load(): Couldn't open file");
}
while(!is.eof() && is.good())
{
std::string line;
std::getline(is, line, '\n');
Strfnd f(line);
std::string ip = trim(f.next("|"));
std::string name = trim(f.next("|"));
if(!ip.empty()) {
m_ips[ip] = name;
}
}
m_modified = false;
}
void BanManager::save()
{
MutexAutoLock lock(m_mutex);
infostream << "BanManager: saving to " << m_banfilepath << std::endl;
std::ostringstream ss(std::ios_base::binary);
for (StringMap::iterator it = m_ips.begin(); it != m_ips.end(); ++it)
ss << it->first << "|" << it->second << "\n";
if (!fs::safeWriteToFile(m_banfilepath, ss.str())) {
infostream << "BanManager: failed saving to " << m_banfilepath << std::endl;
throw SerializationError("BanManager::save(): Couldn't write file");
}
m_modified = false;
}
bool BanManager::isIpBanned(const std::string &ip)
{
MutexAutoLock lock(m_mutex);
return m_ips.find(ip) != m_ips.end();
}
std::string BanManager::getBanDescription(const std::string &ip_or_name)
{
MutexAutoLock lock(m_mutex);
std::string s = "";
for (StringMap::iterator it = m_ips.begin(); it != m_ips.end(); ++it) {
if (it->first == ip_or_name || it->second == ip_or_name
|| ip_or_name == "") {
s += it->first + "|" + it->second + ", ";
}
}
s = s.substr(0, s.size() - 2);
return s;
}
std::string BanManager::getBanName(const std::string &ip)
{
MutexAutoLock lock(m_mutex);
StringMap::iterator it = m_ips.find(ip);
if (it == m_ips.end())
return "";
return it->second;
}
void BanManager::add(const std::string &ip, const std::string &name)
{
MutexAutoLock lock(m_mutex);
m_ips[ip] = name;
m_modified = true;
}
void BanManager::remove(const std::string &ip_or_name)
{
MutexAutoLock lock(m_mutex);
for (StringMap::iterator it = m_ips.begin(); it != m_ips.end();) {
if ((it->first == ip_or_name) || (it->second == ip_or_name)) {
m_ips.erase(it++);
} else {
++it;
}
}
m_modified = true;
}
bool BanManager::isModified()
{
MutexAutoLock lock(m_mutex);
return m_modified;
}
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