ServerAuthHandlerPrefered.cpp

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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.
//
//    Scorched3D 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 Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#include <server/ServerAuthHandlerPrefered.h>
#include <server/ScorchedServer.h>
#include <common/OptionsScorched.h>
#include <common/Defines.h>
#include <common/Logger.h>
#include <XML/XMLFile.h>

ServerAuthHandlerPrefered::ServerAuthHandlerPrefered() : lastReadTime_(0)
{
}

ServerAuthHandlerPrefered::~ServerAuthHandlerPrefered()
{
}

void ServerAuthHandlerPrefered::createAuthentication(ComsConnectAuthMessage &authMessage)
{
}

bool ServerAuthHandlerPrefered::authenticateUser(ComsConnectAuthMessage &authMessage, 
                std::string &message)
{
        if (!getUserById(authMessage.getUniqueId()))
        {
                message = 
                        "This server is running a prefered player only game.\n"
                        "Your supplied unique id is not in the prefered player list.\n";
                return false;
        }

        return true;
}

bool ServerAuthHandlerPrefered::authenticateUserName(const char *uniqueId, 
        const LangString &playername)
{
        std::string strName = LangStringUtil::convertFromLang(playername);
        UserEntry *userEntry = getUserByName(strName.c_str());
        if (!userEntry) return true;
        if (0 == strcmp(userEntry->uniqueid.c_str(), uniqueId)) return true;
        return false;
}

void ServerAuthHandlerPrefered::banUser(const char *uniqueId)
{
}

ServerAuthHandlerPrefered::UserEntry *ServerAuthHandlerPrefered::getUserByName(const char *name)
{
        load();

        std::list<UserEntry>::iterator itor;
        for (itor = entries_.begin();
                itor != entries_.end();
                itor++)
        {
                UserEntry &entry = *itor;
                if (0 == strcmp(entry.name.c_str(), name))
                {
                        return &entry;
                }
        }
        return 0;
}

ServerAuthHandlerPrefered::UserEntry *ServerAuthHandlerPrefered::getUserById(const char *uniqueId)
{
        load();

        std::list<UserEntry>::iterator itor;
        for (itor = entries_.begin();
                itor != entries_.end();
                itor++)
        {
                UserEntry &entry = *itor;
                if (0 == strcmp(entry.uniqueid.c_str(), uniqueId))
                {
                        return &entry;
                }
        }
        return 0;
}

bool ServerAuthHandlerPrefered::load()
{
        std::string filename = 
                S3D::getSettingsFile(S3D::formatStringBuffer("preferedplayers-%i.xml", 
                        ScorchedServer::instance()->getOptionsGame().getPortNo()));
        if (!::S3D::fileExists(filename)) return true;

        time_t fileTime = S3D::fileModTime(filename);
        if (fileTime == lastReadTime_) return true;

        XMLFile file;
        if (!file.readFile(filename))
        {
                Logger::log(S3D::formatStringBuffer("Failed to parse user file \"%s\"\n%s", 
                        filename.c_str(), file.getParserError()));
                return false;
        }

        Logger::log(S3D::formatStringBuffer("Refreshing user list %s", filename.c_str()));
        lastReadTime_ = (unsigned int) fileTime;
        entries_.clear();
        if (!file.getRootNode()) return true; // Empty File

        std::list<XMLNode *>::iterator childrenItor;
        std::list<XMLNode *> &children = file.getRootNode()->getChildren();
        for (childrenItor = children.begin();
                 childrenItor != children.end();
                childrenItor++)
        {
                XMLNode *currentNode = (*childrenItor);

                UserEntry entry;
                if (!currentNode->getNamedChild("name", entry.name)) return false;
                if (!currentNode->getNamedChild("uniqueid", entry.uniqueid)) return false;
                if (!currentNode->failChildren()) return false;
                entries_.push_back(entry);
        }
        return true;
}

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