455 lines
15 KiB
C++
Executable File
455 lines
15 KiB
C++
Executable File
/******************************************************************************\
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* Copyright (c) 2004-2018
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#include "serverlogging.h"
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/* Implementation *************************************************************/
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CHistoryGraph::CHistoryGraph() :
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sFileName ( "" ),
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bDoHistory ( false ),
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vHistoryDataFifo ( NUM_ITEMS_HISTORY ),
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PlotCanvasRect ( 0, 0, 600, 450 ), // defines total size of graph
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iNumTicksX ( 0 ), // just an initialization value, will be overwritten
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iYAxisStart ( 0 ),
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iYAxisEnd ( 24 ),
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iNumTicksY ( 5 ),
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iGridFrameOffset ( 10 ),
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iGridWidthWeekend ( 3 ), // should be an odd value
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iTextOffsetToGrid ( 3 ),
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iXAxisTextHeight ( 22 ),
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iMarkerSizeNewCon ( 11 ),
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iMarkerSizeServSt ( 8 ),
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AxisFont ( "Arial", 12 ),
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iTextOffsetX ( 18 ),
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PlotBackgroundColor ( Qt::white ), // background
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PlotFrameColor ( Qt::black ), // frame
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PlotGridColor ( Qt::gray ), // grid
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PlotTextColor ( Qt::black ), // text
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PlotMarkerNewColor ( Qt::darkCyan ), // marker for new connection
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PlotMarkerNewLocalColor ( Qt::blue ), // marker for new local connection
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PlotMarkerStopColor ( Qt::red ), // marker for server stop
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PlotPixmap ( 1, 1, QImage::Format_RGB32 )
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{
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// generate plot grid frame rectangle
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PlotGridFrame.setRect ( PlotCanvasRect.x() + iGridFrameOffset,
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PlotCanvasRect.y() + iGridFrameOffset,
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PlotCanvasRect.width() - 2 * iGridFrameOffset,
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PlotCanvasRect.height() - 2 * iGridFrameOffset - iXAxisTextHeight );
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// scale pixmap to correct size
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PlotPixmap = PlotPixmap.scaled (
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PlotCanvasRect.width(), PlotCanvasRect.height() );
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// Connections -------------------------------------------------------------
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QObject::connect ( &TimerDailyUpdate, SIGNAL ( timeout() ),
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this, SLOT ( OnTimerDailyUpdate() ) );
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}
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void CHistoryGraph::Start ( const QString& sNewFileName )
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{
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if ( !sNewFileName.isEmpty() )
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{
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// save file name
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sFileName = sNewFileName;
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// set enable flag
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bDoHistory = true;
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// enable timer (update once a day)
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TimerDailyUpdate.start ( 3600000 * 24 );
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// initial update (empty graph)
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Update();
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}
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}
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void CHistoryGraph::DrawFrame ( const int iNewNumTicksX )
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{
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int i;
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// store number of x-axis ticks (number of days we want to draw
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// the history for
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iNumTicksX = iNewNumTicksX;
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// clear base pixmap for new plotting
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PlotPixmap.fill ( PlotBackgroundColor.rgb() ); // fill background
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// create painter
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QPainter PlotPainter ( &PlotPixmap );
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// Create actual plot region (grid frame) ----------------------------------
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PlotPainter.setPen ( PlotFrameColor );
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PlotPainter.drawRect ( PlotGridFrame );
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// calculate step for x-axis ticks so that we get the desired number of
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// ticks -> 5 ticks
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// TODO the following equation does not work as expected but results are acceptable
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// we want to have "floor ( iNumTicksX / 5 )" which is the same as
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// "iNumTicksX / 5" since "iNumTicksX" is an integer variable
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const int iXAxisTickStep = iNumTicksX / 5 + 1;
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// grid (ticks) for x-axis
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dXSpace = static_cast<double> ( PlotGridFrame.width() ) / ( iNumTicksX + 1 );
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for ( i = 0; i < iNumTicksX; i++ )
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{
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int iBottomExtraTickLen = 0;
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const int iCurX = PlotGridFrame.x() + static_cast<int> ( dXSpace * ( i + 1 ) );
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const QDate curXAxisDate = curDate.addDays ( i - iNumTicksX + 1 );
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// text (print only every "iXAxisTickStep" tick)
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if ( !( i % iXAxisTickStep ) )
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{
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PlotPainter.setPen ( PlotTextColor );
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PlotPainter.setFont ( AxisFont );
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PlotPainter.drawText (
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QPoint ( iCurX - iTextOffsetX,
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PlotGridFrame.bottom() + iXAxisTextHeight + iTextOffsetToGrid ),
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curXAxisDate.toString ( "dd.MM." ) );
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iBottomExtraTickLen = 5;
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}
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// regular grid
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PlotPainter.setPen ( PlotGridColor );
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PlotPainter.drawLine ( iCurX, 1 + PlotGridFrame.y(),
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iCurX, PlotGridFrame.bottom() + iBottomExtraTickLen );
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// different grid width for weekends (overwrite regular grid)
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if ( ( curXAxisDate.dayOfWeek() == 6 ) || // check for Saturday
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( curXAxisDate.dayOfWeek() == 7 ) ) // check for Sunday
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{
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const int iGridWidthWeekendHalf = iGridWidthWeekend / 2;
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PlotPainter.setPen ( QPen ( PlotGridColor, iGridWidthWeekend ) );
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PlotPainter.drawLine ( iCurX, 1 + PlotGridFrame.y() + iGridWidthWeekendHalf,
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iCurX, PlotGridFrame.bottom() - iGridWidthWeekendHalf );
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}
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}
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// grid (ticks) for y-axis, draw iNumTicksY - 2 grid lines and
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// iNumTicksY - 1 text labels (the lowest grid line is the grid frame)
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iYSpace = PlotGridFrame.height() / ( iNumTicksY - 1 );
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for ( i = 0; i < ( iNumTicksY - 1 ); i++ )
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{
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const int iCurY = PlotGridFrame.y() + iYSpace * ( i + 1 );
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// text
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PlotPainter.setPen ( PlotTextColor );
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PlotPainter.setFont ( AxisFont );
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PlotPainter.drawText ( QPoint (
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PlotGridFrame.x() + iTextOffsetToGrid,
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iCurY - iTextOffsetToGrid ),
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QString ( "%1:00" ).arg (
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( iYAxisEnd - iYAxisStart ) / ( iNumTicksY - 1 ) *
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( ( iNumTicksY - 2 ) - i ) ) );
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// grid (do not overwrite frame)
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if ( i < ( iNumTicksY - 2 ) )
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{
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PlotPainter.setPen ( PlotGridColor );
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PlotPainter.drawLine ( PlotGridFrame.x(), iCurY,
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PlotGridFrame.right(), iCurY );
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}
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}
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}
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void CHistoryGraph::AddMarker ( const SHistoryData& curHistoryData )
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{
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// calculate x-axis offset (difference of days compared to
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// current date)
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const int iXAxisOffs =
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curDate.daysTo ( curHistoryData.DateTime.date() );
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// check range, if out of range, do not plot anything
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if ( -iXAxisOffs > ( iNumTicksX - 1 ) )
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{
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return;
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}
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// calculate y-axis offset (consider hours and minutes)
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const double dYAxisOffs = 24 - curHistoryData.DateTime.time().hour() -
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static_cast<double> ( curHistoryData.DateTime.time().minute() ) / 60;
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// calculate the actual point in the graph (in pixels)
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const QPoint curPoint (
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PlotGridFrame.x() + static_cast<int> ( dXSpace * ( iNumTicksX + iXAxisOffs ) ),
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PlotGridFrame.y() + static_cast<int> ( static_cast<double> (
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PlotGridFrame.height() ) / ( iYAxisEnd - iYAxisStart ) * dYAxisOffs ) );
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// create painter for plot
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QPainter PlotPainter ( &PlotPixmap );
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// we use different markers for new connection and server stop items
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switch ( curHistoryData.Type )
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{
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case HIT_SERVER_STOP:
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PlotPainter.setPen ( QPen ( QBrush ( PlotMarkerStopColor ),
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iMarkerSizeServSt ) );
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break;
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case HIT_LOCAL_CONNECTION:
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PlotPainter.setPen ( QPen ( QBrush ( PlotMarkerNewLocalColor ),
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iMarkerSizeNewCon ) );
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break;
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case HIT_REMOTE_CONNECTION:
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PlotPainter.setPen ( QPen ( QBrush ( PlotMarkerNewColor ),
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iMarkerSizeNewCon ) );
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break;
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}
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PlotPainter.drawPoint ( curPoint );
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}
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void CHistoryGraph::Save ( const QString sFileName )
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{
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// save plot as a file
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PlotPixmap.save ( sFileName, "JPG", 90 );
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}
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void CHistoryGraph::Add ( const QDateTime& newDateTime,
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const QHostAddress ClientInetAddr )
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{
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if ( bDoHistory )
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{
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// add element to history, distinguish between a local connection
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// and a remote connection
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if ( ( ClientInetAddr == QHostAddress ( "127.0.0.1" ) ) ||
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( ClientInetAddr.toString().left ( 7 ).compare ( "192.168" ) == 0 ) )
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{
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// local connection
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Add ( newDateTime, CHistoryGraph::HIT_LOCAL_CONNECTION );
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}
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else
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{
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// remote connection
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Add ( newDateTime, CHistoryGraph::HIT_REMOTE_CONNECTION );
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}
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}
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}
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void CHistoryGraph::Add ( const QDateTime& newDateTime,
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const EHistoryItemType curType )
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{
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if ( bDoHistory )
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{
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// create and add new element in FIFO
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SHistoryData curHistoryData;
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curHistoryData.DateTime = newDateTime;
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curHistoryData.Type = curType;
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vHistoryDataFifo.Add ( curHistoryData );
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}
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}
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void CHistoryGraph::Update()
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{
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if ( bDoHistory )
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{
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int i;
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// store current date for reference
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curDate = QDate::currentDate();
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// get oldest date in history
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QDate oldestDate = curDate.addDays ( 1 ); // one day in the future
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const int iNumItemsForHistory = vHistoryDataFifo.Size();
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for ( i = 0; i < iNumItemsForHistory; i++ )
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{
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// only use valid dates
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if ( vHistoryDataFifo[i].DateTime.date().isValid() )
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{
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if ( vHistoryDataFifo[i].DateTime.date() < oldestDate )
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{
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oldestDate = vHistoryDataFifo[i].DateTime.date();
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}
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}
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}
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const int iNumDaysInHistory = -curDate.daysTo ( oldestDate ) + 1;
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// draw frame of the graph
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DrawFrame ( iNumDaysInHistory );
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// add markers
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for ( i = 0; i < iNumItemsForHistory; i++ )
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{
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// only use valid dates
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if ( vHistoryDataFifo[i].DateTime.date().isValid() )
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{
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AddMarker ( vHistoryDataFifo[i] );
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}
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}
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// save graph as picture in file
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Save ( sFileName );
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}
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}
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// Server logging --------------------------------------------------------------
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CServerLogging::~CServerLogging()
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{
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// close logging file of open
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if ( File.isOpen() )
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{
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File.close();
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}
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}
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void CServerLogging::Start ( const QString& strLoggingFileName )
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{
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// open file
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File.setFileName ( strLoggingFileName );
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if ( File.open ( QIODevice::Append | QIODevice::Text ) )
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{
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bDoLogging = true;
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}
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}
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void CServerLogging::EnableHistory ( const QString& strHistoryFileName )
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{
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HistoryGraph.Start ( strHistoryFileName );
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}
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void CServerLogging::AddNewConnection ( const QHostAddress& ClientInetAddr )
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{
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// logging of new connected channel
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const QString strLogStr = CurTimeDatetoLogString() + ", " +
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ClientInetAddr.toString() + ", connected";
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QTextStream* tsConsoleStream = (new ConsoleWriterFactory())->get();
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(*tsConsoleStream) << strLogStr << endl; // on console
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*this << strLogStr; // in log file
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// add element to history
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HistoryGraph.Add ( QDateTime::currentDateTime(), ClientInetAddr );
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}
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void CServerLogging::AddServerStopped()
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{
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const QString strLogStr = CurTimeDatetoLogString() + ",, server stopped "
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"-------------------------------------";
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QTextStream* tsConsoleStream = (new ConsoleWriterFactory())->get();
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(*tsConsoleStream) << strLogStr << endl; // on console
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*this << strLogStr; // in log file
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// add element to history and update on server stop
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HistoryGraph.Add ( QDateTime::currentDateTime(),
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CHistoryGraph::HIT_SERVER_STOP );
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HistoryGraph.Update();
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}
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void CServerLogging::operator<< ( const QString& sNewStr )
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{
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if ( bDoLogging )
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{
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// append new line in logging file
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QTextStream out ( &File );
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out << sNewStr << endl;
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File.flush();
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}
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}
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void CServerLogging::ParseLogFile ( const QString& strFileName )
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{
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// open file for reading
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QFile LogFile ( strFileName );
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LogFile.open ( QIODevice::ReadOnly | QIODevice::Text );
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QTextStream inStream ( &LogFile );
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// read all content from file
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while ( !inStream.atEnd() )
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{
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// get a new line from log file
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QString strCurLine = inStream.readLine();
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// parse log file line
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QStringList strlistCurLine = strCurLine.split( "," );
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// check number of separated strings condition
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if ( strlistCurLine.size() == 4 )
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{
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// first entry
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QDate curDate =
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QDate::fromString ( strlistCurLine.at ( 0 ).trimmed(),
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"d.M.yyyy" );
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// second entry
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QTime curTime =
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QTime::fromString ( strlistCurLine.at ( 1 ).trimmed(),
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"hh:mm:ss" );
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if ( curDate.isValid() && curTime.isValid() )
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{
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QDateTime curDateTime ( curDate, curTime );
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// check if server stop or new client connection
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QString strAddress = strlistCurLine.at ( 2 ).trimmed();
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if ( strAddress.isEmpty() )
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{
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// server stop
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HistoryGraph.Add ( curDateTime,
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CHistoryGraph::HIT_SERVER_STOP );
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}
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else
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{
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QHostAddress curAddress;
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// third entry is IP address
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if ( curAddress.setAddress ( strlistCurLine.at ( 2 ).trimmed() ) )
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{
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// new client connection
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HistoryGraph.Add ( curDateTime, curAddress );
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}
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}
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}
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}
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}
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HistoryGraph.Update();
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}
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QString CServerLogging::CurTimeDatetoLogString()
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{
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// time and date to string conversion
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const QDateTime curDateTime = QDateTime::currentDateTime();
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// format date and time output according to "3.9.2006, 11:38:08"
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return QString().setNum ( curDateTime.date().day() ) + "." +
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QString().setNum ( curDateTime.date().month() ) + "." +
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QString().setNum ( curDateTime.date().year() ) + ", " +
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curDateTime.time().toString();
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}
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