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/*
* AuthBackendFile.cpp
*
* Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "AuthBackendFile.h"
#include <Core/ConfigEntry.h>
#include <Core/ConfigManager.h>
#include <fstream>
#include <boost/regex.hpp>
namespace Mad {
namespace Modules {
namespace AuthBackendFile {
void AuthBackendFile::readFile(const std::string &name) {
std::ifstream stream(name.c_str());
if(!stream.good()) {
application->logf(Core::LoggerBase::LOG_WARNING, "AuthBackendFile: Can't read file '%s'.", name.c_str());
return;
}
while(stream.good() && !stream.eof()) {
std::string line;
std::getline(stream, line);
if(line.empty())
continue;
static const boost::regex regex("([^:]+):(.+)", boost::regex_constants::perl);
boost::smatch match;
if(!boost::regex_match(line, match, regex)) {
application->logf(Core::LoggerBase::LOG_WARNING, "AuthBackendFile: Malformed line in file '%s'.", name.c_str());
continue;
}
userMap.insert(std::make_pair(match[1].str(), match[2].str()));
}
}
bool AuthBackendFile::handleConfigEntry(const Core::ConfigEntry &entry, bool /*handled*/) {
if(!entry[0].getKey().matches("AuthBackendFile"))
return false;
if(entry[1].empty())
return true;
if(entry[1].getKey().matches("File")) {
if(entry[2].empty()) {
readFile(entry[1][0]);
}
}
else if(!entry[2].empty())
return false;
return true;
}
boost::shared_ptr<Common::AuthContext> AuthBackendFile::authenticate(const std::string &method, const std::string &subMethod,
const std::string &user, const std::vector<boost::uint8_t> &data, std::vector<boost::uint8_t>& /*response*/,
boost::shared_ptr<Common::AuthContext> context) throw(Core::Exception) {
if(method != "Password")
throw(Core::Exception(Core::Exception::NOT_IMPLEMENTED));
if(context.get() != 0 && dynamic_cast<AuthContextFile*>(context.get()) == 0)
throw(Core::Exception(Core::Exception::INVALID_INPUT));
if(context.get() == 0)
context.reset(new AuthContextFile);
std::map<std::string, std::string>::iterator userIt = userMap.find(user);
if(userIt == userMap.end())
throw(Core::Exception(Core::Exception::AUTHENTICATION));
if(subMethod == "Clear") {
if(userIt->second != std::string(data.begin(), data.end()))
throw(Core::Exception(Core::Exception::AUTHENTICATION));
}
else {
if(!std::equal(data.begin(), data.end(), Common::Hash::hash(userIt->second, subMethod).begin()))
throw(Core::Exception(Core::Exception::AUTHENTICATION));
}
return context;
}
}
}
}
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