<?
/*
   KISGB - a Guest Book script written in PHP.
   Copyright (C) 2001-2002 Gaylen Fraley
   hide@address.com

   This program 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
   License file for more details.
*/
/****************************************************************
KISGB DOES NOT REQUIRE THAT YOU USE THIS!!!!!!
****************************************************************/
/*
	The logfile class allows you to write out a log from the index.php
	file or the addtogb.php file.  It can be used elsewhere, but it really
	doesn't make sense to.  To use it, you must include it AFTER the
	language file and config files are included.

	Example usage:

	$objLog = new logfile();
	$objLog->logvars[] = $HTTP_SERVER_VARS["REMOTE_ADDR"];
	$objLog->logvars[] = $HTTP_USER_AGENT;
	$objLog->logvars[] = date($date_format);
	$objLog->logvars[] = date($time_format);
	$objLog->logvars[] = $PHP_SELF;
	$objLog->writelog();

	The default logfile name is "logs/kisgb.log.php" and the deafult separator is
	a vertical bar "|".  You can override both of these when you instantiate the
	class, as in:

	$objLog = new logfile("/usr/web/docs/myguestbook.log.php","~");

	This would write entries to /usr/web/docs/myguestbook.log.php file and would create it, if
	it doesn't already exist.  This would track visitors: ip, browser, date/time,
	and url.

	You control the placement of this code in the index.php and addtogb.php files.
	This is really specialized code for very specific tracking purposes and to
	demonstrate it, I have included a index_with_log.php that will show
	where you might want to place it.  To test it, after setting up KISGB, type
	http://your.url/kisgb/index_with_log.php , instead of
	http://your.url/kisgb/index.php .  You shoud then see a kisgb.log.php file
	in your kisgb directory with the tracking variables in it.
*/

class logfile
{
	var $logvars
		,$path_to_log
		,$separator;

	function logfile($log_file="logs/kisgb.log.php",$sep="|")
	{
		$this->path_to_log = $log_file;
		$this->separator = $sep;
	}

	function writelog()
	{
		GLOBAL $unable_to_access_file_msg;
		$log = @fopen($this->path_to_log,"a") or die($unable_to_access_file_msg." ".$this->path_to_log);
		@flock($log,1);
		foreach ($this->logvars as $strname)
		{
			@fwrite($log,$this->separator.$strname);
		}
		@fwrite($log,"\n");
		@flock($log,3);
		@fclose($log);
	}

	function printlog($table_options='',$cell_options='')
	{
		GLOBAL $unable_to_access_file_msg;
		$log = file($this->path_to_log);
		$number_of_lines = count($log);
		echo "<table align=center $table_options>";
		for ($i=0; $i<$number_of_lines; $i++)
		{
			$line = explode($this->separator,$log[$i]);
			if ($i==0)
			{
				$count = count($line)+1;
				echo "<tr><th $cell_options align=\"center\" colspan=\"".$count."\">$this->path_to_log ( $number_of_lines )</th></tr>";
				echo "<tr>";
				echo "<th $cell_options>&nbsp;</th>";
				for ($j=0;$j<count($line);$j++)
				{
					$k = $j+1;
					${$col.$j} = "col".$k;
					echo "<th $cell_options>";
					if ($this->logvars[$j]>"")
					{
						if (substr($this->logvars[$j],0,1)=="^") echo substr($this->logvars[$j],3);
						else echo $this->logvars[$j];
					}
					else echo ${$col.$j};
					echo "</th>";
				}
				echo "</tr><tr>";
			}
			$row++;
			echo "<td $cell_options>$row</td>";
			$col = 0;
			foreach ($line as $strname)
			{
				if (substr($this->logvars[$col],0,3)=="^H^") //url
				{
					if (substr($strname,0,7)=="http://") $pre = ""; else $pre = "http://";
					echo "<td $cell_options>".str_replace($this->separator,"&nbsp;",$this->separator)."<a href=\"$pre".$strname."\" target=_new>$strname</a></td>";
				}
				elseif (substr($this->logvars[$col],0,3)=="^M^") //mail
				{
					echo "<td $cell_options>".str_replace($this->separator,"&nbsp;",$this->separator)."<a href=\"mailto:".$strname."\">$strname</a></td>";
				}
				else echo "<td $cell_options>".str_replace($this->separator,"&nbsp;",$this->separator).$strname."</td>";
				$col++;
			}
			echo "</tr>";
		}
		echo "</table>";
	}


	function showvars()
	{
		foreach ($this->logvars as $strname)
		{
			echo $strname."<br />";
		}
	}

	function destroy()
	{
		unset($logfile);
	}
}
?>