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File: _hitlog.funcs.php
<?php
/**
 * This file implements functions for logging of hits and extracting stats.
 *
 * NOTE: the refererList() and stats_* functions are not fully functional ATM. I'll transform them into the Hitlog object during the next days. blueyed.
 *
 * This file is part of the evoCore framework - {@link http://evocore.net/}
 * See also {@link http://sourceforge.net/projects/evocms/}.
 *
 * @copyright (c)2003-2011 by Francois Planque - {@link http://fplanque.com/}
 * Parts of this file are copyright (c)2004-2006 by Daniel HAHLER - {@link http://thequod.de/contact}.
 *
 * {@internal License choice
 * - If you have received this file as part of a package, please find the license.txt file in
 *   the same folder or the closest folder above for complete license terms.
 * - If you have received this file individually (e-g: from http://evocms.cvs.sourceforge.net/)
 *   then you must choose one of the following licenses before using the file:
 *   - GNU General Public License 2 (GPL) - http://www.opensource.org/licenses/gpl-license.php
 *   - Mozilla Public License 1.1 (MPL) - http://www.opensource.org/licenses/mozilla1.1.php
 * }}
 *
 * {@internal Open Source relicensing agreement:
 * Daniel HAHLER grants Francois PLANQUE the right to license
 * Daniel HAHLER's contributions to this file and the b2evolution project
 * under any OSI approved OSS license (http://www.opensource.org/licenses/).
 * }}
 *
 * {@internal Origin:
 * This file was inspired by N C Young's Referer Script released in
 * the public domain on 07/19/2002. {@link http://ncyoung.com/entry/57}.
 * See also {@link http://ncyoung.com/demo/referer/}.
 * }}
 *
 * @package evocore
 *
 * {@internal Below is a list of authors who have contributed to design/coding of this file: }}
 * @author N C Young (nathan@ncyoung.com).
 * @author blueyed: Daniel HAHLER.
 * @author fplanque: Francois PLANQUE.
 * @author vegarg: Vegar BERG GULDAL.
 *
 * @version $Id: _hitlog.funcs.php 9 2011-10-24 22:32:00Z fplanque $
 */
if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page directly.' );



/**
 * @todo Transform to make this a stub for {@link $Hitlist}
 *
 * Extract stats
 */
function refererList(
	$howMany = 5,
	$visitURL = '',
	$disp_blog = 0,
	$disp_uri = 0,
	$type = "'referer'",		// was: 'referer' normal refer, 'invalid', 'badchar', 'blacklist', 'rss', 'robot', 'search'
													// new: 'search', 'blacklist', 'referer', 'direct', ('spam' but spam is not logged)
	$groupby = '', 	// dom_name
	$blog_ID = '',
	$get_total_hits = false, // Get total number of hits (needed for percentages)
	$get_user_agent = false ) // Get the user agent
{
	global $DB, $res_stats, $stats_total_hits, $ReqURI;

	if( strpos( $type, "'" ) !== 0 )
	{ // no quote at position 0
		$type = "'".$type."'";
	}

	//if no visitURL, will show links to current page.
	//if url given, will show links to that page.
	//if url="global" will show links to all pages
	if (!$visitURL)
	{
		$visitURL = $ReqURI;
	}

	if( $groupby == '' )
	{ // No grouping:
		$sql = 'SELECT hit_ID, UNIX_TIMESTAMP(hit_datetime) AS hit_datetime, hit_referer, dom_name';
	}
	else
	{ // group by
		if( $groupby == 'baseDomain' )
		{ // compatibility HACK!
			$groupby = 'dom_name';
		}
		$sql = 'SELECT COUNT(*) AS totalHits, hit_referer, dom_name';
	}
	if( $disp_blog )
	{
		$sql .= ', hit_blog_ID';
	}
	if( $disp_uri )
	{
		$sql .= ', hit_uri';
	}
	if( $get_user_agent )
	{
		$sql .= ', agnt_signature';
	}

	$sql_from_where = "
			  FROM T_hitlog LEFT JOIN T_basedomains ON dom_ID = hit_referer_dom_ID
			 WHERE hit_referer_type IN (".$type.")
			   AND hit_agent_type = 'browser'";
	if( !empty($blog_ID) )
	{
		$sql_from_where .= " AND hit_blog_ID = '".$blog_ID."'";
	}
	if ( $visitURL != 'global' )
	{
		$sql_from_where .= " AND hit_uri = '".$DB->escape($visitURL, 0, 250)."'";
	}

	$sql .= $sql_from_where;

	if( $groupby == '' )
	{ // No grouping:
		$sql .= ' ORDER BY hit_ID DESC';
	}
	else
	{ // group by
		$sql .= " GROUP BY ".$groupby." ORDER BY totalHits DESC";
	}
	$sql .= ' LIMIT '.$howMany;

	$res_stats = $DB->get_results( $sql, ARRAY_A );

	if( $get_total_hits )
	{ // we need to get total hits
		$sql = 'SELECT COUNT(*) '.$sql_from_where;
		$stats_total_hits = $DB->get_var( $sql );
	}
	else
	{ // we're not getting total hits
		$stats_total_hits = 1;		// just in case some tries a percentage anyway (avoid div by 0)
	}

}


/*
 * stats_hit_ID(-)
 */
function stats_hit_ID()
{
	global $row_stats;
	echo $row_stats['visitID'];
}

/*
 * stats_hit_remote_addr(-)
 */
function stats_hit_remote_addr()
{
	global $row_stats;
	echo $row_stats['hit_remote_addr'];
}

/*
 * stats_time(-)
 */
function stats_time( $format = '' )
{
	global $row_stats;
	if( $format == '' )
		$format = locale_datefmt().' '.locale_timefmt();
	echo date_i18n( $format, $row_stats['hit_datetime'] );
}


/*
 * stats_total_hit_count(-)
 */
function stats_total_hit_count()
{
	global $stats_total_hits;
	echo $stats_total_hits;
}


/*
 * stats_hit_count(-)
 */
function stats_hit_count( $disp = true )
{
	global $row_stats;
	if( $disp )
		echo $row_stats['totalHits'];
	else
		return $row_stats['totalHits'];
}


/*
 * stats_hit_percent(-)
 */
function stats_hit_percent(
	$decimals = 1,
	$dec_point = '.' )
{
	global $row_stats, $stats_total_hits;
	$percent = $row_stats['totalHits'] * 100 / $stats_total_hits;
	echo number_format( $percent, $decimals, $dec_point, '' ).'&nbsp;%';
}


/*
 * stats_blog_ID(-)
 */
function stats_blog_ID()
{
	global $row_stats;
	echo $row_stats['hit_blog_ID'];
}


/*
 * stats_blog_name(-)
 */
function stats_blog_name()
{
	global $row_stats;

	$BlogCache = & get_BlogCache();
	$Blog = & $BlogCache->get_by_ID($row_stats['hit_blog_ID']);

	$Blog->disp('name');
}


/*
 * stats_referer(-)
 */
function stats_referer( $before='', $after='', $disp_ref = true )
{
	global $row_stats;
	$ref = trim($row_stats['hit_referer']);
	if( strlen($ref) > 0 )
	{
		echo $before;
		if( $disp_ref ) echo htmlentities( $ref );
		echo $after;
	}
}


/*
 * stats_basedomain(-)
 */
function stats_basedomain( $disp = true )
{
	global $row_stats;
	if( $disp )
		echo htmlentities( $row_stats['dom_name'] );
	else
		return $row_stats['dom_name'];
}


/**
 * Displays keywords used for search leading to this page
 */
function stats_search_keywords( $keyphrase, $length = 45 )
{
	global $evo_charset;

	if( empty( $keyphrase ) )
	{
		return '<span class="note">['.T_('n.a.').']</span>';
	}

	// Save original string
	$keyphrase_orig = $keyphrase;

	$keyphrase = strmaxlen($keyphrase, $length, '...', 'raw');

	// Convert keyword encoding, some charsets are supported only in PHP 4.3.2 and later.
	// This fixes encoding problem for Cyrillic keywords
	// See http://forums.b2evolution.net/viewtopic.php?t=17431
	$keyphrase = htmlentities( $keyphrase, ENT_COMPAT, $evo_charset );

	return '<span title="'.format_to_output( $keyphrase_orig, 'htmlattr' ).'">'.$keyphrase.'</span>';
}



/*
 * $Log: _hitlog.funcs.php,v $
 */
?>