<?php
// File: $Id: referers.php,v 1.13 2001/12/04 23:54:36 jgm Exp $ $Name:  $
// ----------------------------------------------------------------------
// POST-NUKE Content Management System
// Copyright (C) 2001 by the Post-Nuke Development Team.
// http://www.postnuke.com/ 
// ----------------------------------------------------------------------
// Based on:
// PHP-NUKE Web Portal System - http://phpnuke.org/
// Thatware - http://thatware.org/
// ----------------------------------------------------------------------
// LICENSE
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License (GPL)
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// 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
// GNU General Public License for more details.
//
// To read the license please visit http://www.gnu.org/copyleft/gpl.html
// ----------------------------------------------------------------------
// Original Author of file:
// Purpose of file: 
// ----------------------------------------------------------------------

if (!eregi("admin.php", $PHP_SELF)) { die ("Access Denied"); }
$hlpfile = "manual/referer.html";

modules_get_language();

/*********************************************************/
/* Referer Functions to know who links to us             */
/*********************************************************/

function hreferer() {
    global $hlpfile, $bgcolor2, $pntable, $dbconn;
    include ("header.php");

    GraphicAdmin($hlpfile);
    OpenTable();
    echo "<center><font class=\"pn-title\"><b>"._HTTPREFERERS."</b></font></center>";
    CloseTable();
    echo "<br>";


    if (!(authorised(0, 'Referers::', '::', ACCESS_ADMIN))) {
        echo _REFERERSNOAUTH;
        include 'footer.php';
        return;
    }

    OpenTable();
    echo "<center><b>"._WHOLINKS."</b></center><br><br>"
    ."<table border=0 width=100%> <tr><td>"._FREQUENCY."</td><td>"._URL."</td><td>"._PERCENT."</td></tr>";
    /**

     * fifers: grab the total count of referers for percentage calculations

     */
    $column = &$pntable['referer_column'];
    $hresult = $dbconn->Execute("SELECT SUM($column[frequency]) FROM $pntable[referer]");
    list($totalfreq) = $hresult->fields;
    $hresult = $dbconn->Execute("SELECT $column[url], $column[frequency] FROM $pntable[referer] ORDER BY $column[frequency] DESC");

//FTO : Rewrite the condition loop clearly to test EOF

    if (!$hresult) {
        PN_DBMsgError($dbconn, __FILE__, __LINE__, "An error ocurred");
        die();
    }
    
    while(!$hresult->EOF) {
        list($url, $freq) = $hresult->fields;
        $hresult->MoveNext();
        echo "<tr>\n"
            ."<td bgcolor=\"$bgcolor2\">$freq</td>\n"
            ."<td bgcolor=\"$bgcolor2\">".(($url == "bookmark")?(""):("<a target=_blank href=$url>"))."$url".(($url == "bookmark")?(""):("</a>"))."</td>\n"
            ."<td bgcolor=\"$bgcolor2\">".round(($freq / $totalfreq * 100), 2)." %</td>\n"
            ."</tr>\n";
    }
    echo "</table>"._TOTAL." $totalfreq <br>"
    ."<form action=\"admin.php\" method=\"post\">"
    ."<input type=\"hidden\" name=\"op\" value=\"delreferer\">"
    ."<center><input type=\"submit\" value=\""._DELETEREFERERS."\"></center>";
    CloseTable();

    include ("footer.php");
}

function delreferer() {
    global $pntable, $dbconn;

    csrfcheck();

    if (!(authorised(0, 'Referers::', '::', ACCESS_ADMIN))) {
        include 'header.php';
        echo _REFERERSDELNOAUTH;
        include 'footer.php';
        return;
    }

    $dbconn->Execute("DELETE FROM $pntable[referer]");
    pnRedirect('admin.php?op=adminMain');
}


if (!(authorised(0, 'Referers::', '::', ACCESS_ADMIN))) {
    include 'header.php';
    echo _REFERERSNOAUTH;
    include 'footer.php';
} else {

    switch($op) {

        case "hreferer":
            hreferer();
            break;

        case "delreferer":
                delreferer();
            break;

    }

}
?>