mirror of
https://github.com/ElvishArtisan/rivendell.git
synced 2025-07-26 17:38:15 +02:00
d3e6912663
* Added a 'LOGS.LOCK_USER_NAME' field to the database. * Added a 'LOGS.LOCK_STATION_NAME' field to the database. * Added a 'LOGS.LOCK_IPV4_ADDRESS' field to the database. * Added a 'LOGS.LOCK_DATETIME' field to the database. * Incremented the database version to 273. * Added log locking logic to rdlogedit(1).
148 lines
3.8 KiB
C++
148 lines
3.8 KiB
C++
// rdloglock.cpp
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//
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// Log locking routines for Rivendell
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//
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// (C) Copyright 2017 Fred Gleason <fredg@paravelsystems.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#ifndef WIN32
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#include <syslog.h>
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#endif // WIN32
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#include <qdatetime.h>
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#include "rddb.h"
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#include "rdescape_string.h"
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#include "rdloglock.h"
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RDLogLock::RDLogLock(const QString &log_name,RDUser *user,RDStation *station,
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QObject *parent)
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: QObject(parent)
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{
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lock_log_name=log_name;
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lock_user=user;
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lock_station=station;
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lock_locked=false;
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lock_timer=new QTimer(this);
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connect(lock_timer,SIGNAL(timeout()),this,SLOT(updateLock()));
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}
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RDLogLock::~RDLogLock()
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{
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if(lock_locked) {
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clearLock();
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}
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delete lock_timer;
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}
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bool RDLogLock::isLocked() const
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{
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return lock_locked;
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}
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bool RDLogLock::tryLock(QString *username,QString *stationname,
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QHostAddress *addr)
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{
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QString sql;
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RDSqlQuery *q;
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RDSqlQuery *q1;
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bool ret=false;
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QDateTime now=QDateTime::currentDateTime();
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sql=QString("update LOGS set ")+
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"LOCK_USER_NAME=\""+RDEscapeString(lock_user->name())+"\","+
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"LOCK_STATION_NAME=\""+RDEscapeString(lock_station->name())+"\","+
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"LOCK_IPV4_ADDRESS=\""+RDEscapeString(lock_station->address().toString())+
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"\","+
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"LOCK_DATETIME=now() where "+
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"(NAME=\""+RDEscapeString(lock_log_name)+"\")&&"+
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"((LOCK_DATETIME is null)||"+
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"(LOCK_DATETIME<\""+RDEscapeString(now.addSecs(-RD_LOG_LOCK_TIMEOUT/1000).toString("yyyy-MM-dd hh:mm:ss"))+"\"))";
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q=new RDSqlQuery(sql);
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if(q->numRowsAffected()>0) {
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lock_timer->start(RD_LOG_LOCK_TIMEOUT/2);
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lock_locked=true;
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ret=true;
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}
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else {
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sql=QString("select ")+
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"LOCK_USER_NAME,"+
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"LOCK_STATION_NAME,"+
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"LOCK_IPV4_ADDRESS "+
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"from LOGS where "+
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"NAME=\""+RDEscapeString(lock_log_name)+"\"";
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q1=new RDSqlQuery(sql);
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if(q1->first()) {
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*username=q1->value(0).toString();
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*stationname=q1->value(1).toString();
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addr->setAddress(q1->value(2).toString());
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}
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delete q1;
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}
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delete q;
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return ret;
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}
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void RDLogLock::clearLock()
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{
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QString sql;
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RDSqlQuery *q;
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sql=QString("update LOGS set ")+
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"LOCK_USER_NAME=null,"+
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"LOCK_STATION_NAME=null,"+
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"LOCK_IPV4_ADDRESS=null,"+
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"LOCK_DATETIME=null where "+
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"(NAME=\""+RDEscapeString(lock_log_name)+"\")&&"+
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"(LOCK_USER_NAME=\""+RDEscapeString(lock_user->name())+"\")&&"+
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"(LOCK_STATION_NAME=\""+RDEscapeString(lock_station->name())+"\")&&"+
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"(LOCK_IPV4_ADDRESS=\""+RDEscapeString(lock_station->address().toString())+
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"\")";
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q=new RDSqlQuery(sql);
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delete q;
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lock_timer->stop();
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lock_locked=false;
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}
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void RDLogLock::updateLock()
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{
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QString sql;
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RDSqlQuery *q;
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sql=QString("update LOGS set ")+
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"LOCK_DATETIME=now() where "+
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"(NAME=\""+RDEscapeString(lock_log_name)+"\")&&"+
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"(LOCK_USER_NAME=\""+RDEscapeString(lock_user->name())+"\")&&"+
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"(LOCK_STATION_NAME=\""+RDEscapeString(lock_station->name())+"\")&&"+
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"(LOCK_IPV4_ADDRESS=\""+RDEscapeString(lock_station->address().toString())+
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"\")";
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q=new RDSqlQuery(sql);
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#ifndef WIN32
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if(q->numRowsAffected()==0) {
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syslog(LOG_WARNING,"lock on log \"%s\" has gone stale",
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(const char *)lock_log_name);
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}
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#endif // WIN32
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delete q;
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}
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