<?php
    
    function displayChart(){
        set_time_limit (90);
        $goalFile = $_GET['file'];
        $fileArray = file("/home/jbakse/access_log");
        
        $chartLabels = Array();
        $charValues = Array();
        
        $prevDate = "0"; //holds the date of last found entry
        $hitsPerDay = 0; //number of hits found on this day
        $chartEntry = 0; //a counter to remember number of days entered in the arrays
    
    
        for ($whatLine = 0; $whatLine<count($fileArray); $whatLine ++){
            preg_match ( "/GET .*? HTTP/", $fileArray[$whatLine], $get);    //find the part of the log entry that tells what file was requested (GET)
            
            if (strpos($get[0],$goalFile)){                                    //check if the requested text is in the GET request
            
                $pattern = "/\[([0-9]+\/.*?\/[0-9]+)\:/";                    //pull the date from the request
                $dateFound =  preg_match ( $pattern, $fileArray[$whatLine], $match);
                $matchDate = $match[1];
                
                if ($prevDate == $matchDate){
                    $hitsPerDay++;                                            //we got a match, count it
                
                }else{
                    if ($prevDate != "0"){                                    //if its the last match of the day, record the day and count
                        $chartLabels[$chartEntry] = $prevDate;
                        $chartValues[$chartEntry] = $hitsPerDay;
                        $chartEntry++;
                    }
                    $prevDate = $matchDate;
                    $hitsPerDay = 0;
                }
            }
        }
        
        renderChart(30,$chartValues,$chartLabels, "Hits Per Day: <strong>".$goalFile."</strong>");
    }
    
    
    function renderChart($height, $chartValues, $chartLabels, $title){
        
        $pad = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
        
        
        
        ////////////////////////////////////////////////
        //
        //    Print Title
        //
        ////////////////////////////////////////////////
        
        //print ("<span class = \"chartData\">");
        //print ("$pad$title<BR><BR>\n");
        //print ("</span>");
        
        
        ////////////////////////////////////////////////
        //
        //    Determine Vertical Scale
        //
        ////////////////////////////////////////////////
        
        $maxValue = 0;
        for ($n=0; $n<count($chartValues); $n++){
                if ($chartValues[$n] > $maxValue) $maxValue = $chartValues[$n];
        }
        //$maxValue = ceil($maxValue/100) * 100;
        $valuePerRow = floor($maxValue/$height);
        
        
        ////////////////////////////////////////////////
        //
        //    Print Graph
        //
        ////////////////////////////////////////////////
    
    
        for ($row = 0; $row < $height; $row++){
            $number = sprintf("%'.5d&nbsp;|", $maxValue  - ($row*$valuePerRow));
            $number = preg_replace("/\./","&nbsp;",$number);
            print ("<span class = \"chartLabel\">");
            print ($number);
            print ("</span>");
            print ("<span class = \"chartData\">");
            for($col = 0; $col < count($chartValues); $col ++){
                if     ($chartValues[$col] > $maxValue  - ($row*$valuePerRow)) {
                    print ("*&nbsp;");
                }else{
                    print ("&nbsp;&nbsp;");
                }
                    
            }
            print ("<BR>\n");
            print ("</span>");
        }
        
        
        ////////////////////////////////////////////////
        //
        //    Print Vert Divider
        //
        ////////////////////////////////////////////////
    
        
        print ("<span class = \"chartLabel\">");
        print ($pad);
        for($col = 0; $col < count($chartValues); $col ++){
            print("--");
        }
        print ( "&nbsp;&nbsp;&nbsp;" ); //this pad is just to put some marign on the right side in the div.
        print ("<BR>\n");
        print ("</span>");
        
        ////////////////////////////////////////////////
        //
        //    Print Labels
        //
        ////////////////////////////////////////////////
    
        print ("<span class = \"chartLabel\">");
        for ($row = 0; $row < 11; $row++){
            print ($pad);
            //for ($n = 0; $n < $row; $n++){
            //    print("&nbsp;");
            //}
            for($col = 0; $col < count($chartLabels); $col ++){
                if (substr ($chartLabels[$col], $row , 1) == "/"){
                    print("&nbsp;");
                }else{
                    print(substr ($chartLabels[$col], $row , 1));
                }
                print("&nbsp;");
            }
            print ("<BR>\n");
        }
        print ("</span>");
    }
?>




<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <title>Volcano Kit Log Plotter</title>
        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
        <style type="text/css">
            <!--
                .chartData {
                    font-family: Monaco, monospace;
                    font-size: 9px;
                    line-height: 9px;
                    color: #FF0000;
                }
                
                .chartLabel {
                    font-family: Monaco, monospace;
                    font-size: 9px;
                    line-height: 9px;
                    color: #FF8888;
                }
                
                .table {
                    font-family: Arial, Helvetica, sans-serif;
                    font-size: 9px;
                    border:1px solid #FF0000;
                                
                }
                            
                .tableLike {
                            
                    font-family: Arial, Helvetica, sans-serif;
                    font-size: 9px;    
                    padding-left: 5px;
                }
                
                a {
                    color: #000000;
                }
                            
            -->
        </style>
    </head>

<body>
        <div id="aboutBox" style="position:absolute; left:25; top:50; width:150px; height:500; z-index:1"> 
            <table class="table" bgcolor="#EEEEFF" width="150" border="0" cellspacing="0" cellpadding="2">
                <tr bgcolor="#FF0000"><td colspan = '3'><font color = #FFFFFF>ASCII Log Plotter:</font></td></tr>
                <tr><td colspan = '3'>&nbsp;</td></tr>
                <tr><td class = "tableLike">
                     This script will look through an apache log file and count how many times a user specified file is accessed each day. The results are returned as a ascii graph. Days without hits are omitted from the graph.<BR><BR>
                     Track the popularity of these parts of Volcano Kit:<BR><BR>
                     &nbsp;&nbsp;<a href ="http://www.volcanokit.com/volcanokit2/logPlot/index.php?file=/volcanokit2/index.php">VK2 Main Page</a><BR><BR>
                     &nbsp;&nbsp;<a href ="http://www.volcanokit.com/volcanokit2/logPlot/index.php?file=/volcanokit2/beepmaker/beepmaker16.php">the beepmaker</a><BR><BR>
                     &nbsp;&nbsp;<a href ="http://www.volcanokit.com/volcanokit2/logPlot/index.php?file=vkitVisualizer">VK iTunes Visualizer</a><BR><BR>
                     &nbsp;&nbsp;<a href ="http://www.volcanokit.com/volcanokit2/logPlot/index.php?file=vkit5x5.sit">5x5 Screen Saver</a><BR><BR>
                     &nbsp;&nbsp;<a href ="http://www.volcanokit.com/volcanokit2/logPlot/index.php?file=treadsOfFury">Treads of Fury</a> (<a href = "http://www.minefieldinteractive.com">MI</a>)<BR><BR>
                     <BR><BR>
                     <form name="form1" method="get" action="index.php">
                     Or enter another page:<BR>
                          <input name="file" type="text" id="file">
                        </form>
                    
                     <BR><BR><BR><BR>Feel free to use this code any way you wish.
                       <BR><BR><BR><BR><BR>
                       <a href = "showSource.php">view source</a><br>
                       
                      
                  </td></tr>
                  <tr ><td colspan = '3'>&nbsp;</td></tr>
                  </table>
        </div>
        
        <div id="formDiv" align="center" style="position:absolute; left:200; top:50; width:200px; height:200px; z-index:1"> 
                  <table class="table" bgcolor="#EEEEFF" width="200" border="0" cellspacing="0" cellpadding="2">
                <tr bgcolor="#FF0000"><td colspan = '3'><font color = #FFFFFF>Hits Per Day:&nbsp;&nbsp;<?php print($_GET['file']);?></font></td></tr>
                <tr><td colspan = '3'>&nbsp;</td></tr>
                <tr><td>
                      <?php displayChart();?>
                  </td></tr>
                  <tr ><td colspan = '3'>&nbsp;</td></tr>
                  </table>
        </div>
        
        



</body>
</html>