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winix/winixd/core/lastcontainer.cpp

145 lines
3.3 KiB

/*
* This file is a part of Winix
* and is distributed under the 2-Clause BSD licence.
* Author: Tomasz Sowa <t.sowa@ttmath.org>
*/
/*
* Copyright (c) 2009-2014, Tomasz Sowa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "lastcontainer.h"
#include "log.h"
#include "misc.h"
namespace Winix
{
LastItem::LastItem()
{
user_id = 0;
ip = 0;
session_id = 0;
}
bool LastItem::IsLoggedOut()
{
return end.year > 1970;
}
LastContainer::Iterator LastContainer::Begin()
{
return last_tab.begin();
}
LastContainer::Iterator LastContainer::End()
{
return last_tab.end();
}
LastContainer::Iterator LastContainer::FindNotLoggedOut(long user_id, long session_id)
{
LastTab::iterator i;
for(i=last_tab.begin() ; i!=last_tab.end() ; ++i)
{
if( i->user_id == user_id && i->session_id == session_id && !i->IsLoggedOut() )
return i;
}
return last_tab.end();
}
void LastContainer::UserLogin(long user_id, const std::wstring & name, unsigned int ip, long session_id)
{
LastTab::iterator i = FindNotLoggedOut(user_id, session_id);
if( i != last_tab.end() )
{
log << log1 << "LC: such a user and session_id exist, not added as a new one" << logend;
return;
}
if( last_tab.size() >= WINIX_LASTCONTAINER_TABLE_SIZE ) // last_tab has O(n) complexity
last_tab.erase(last_tab.begin());
LastItem li;
li.user_id = user_id;
li.name = name;
li.ip = ip;
li.session_id = session_id;
li.start = std::time(0);
last_tab.insert(last_tab.end(), li);
log << log2 << "LC: added user: " << name << " into the last table" << logend;
}
void LastContainer::UserLogout(long user_id, long session_id)
{
LastTab::iterator i = FindNotLoggedOut(user_id, session_id);
if( i != last_tab.end() )
{
i->end = std::time(0);
}
else
{
/*
!! IMPROVE ME
users read from the session file (at boot time)
are not added to LastContainer
*/
log << log4 << "LC: there is no such a user to log out: user_id: "
<< user_id << " ses_id: " << session_id << logend;
}
}
} // namespace Winix