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knowledgebase.php
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<?php
/**
*
* This file is part of HESK - PHP Help Desk Software.
*
* (c) Copyright Klemen Stirn. All rights reserved.
* https://www.hesk.com
*
* For the full copyright and license agreement information visit
* https://www.hesk.com/eula.php
*
*/
define('IN_SCRIPT', 1);
define('HESK_PATH', './');
/* Get all the required files and functions */
require(HESK_PATH . 'hesk_settings.inc.php');
require(HESK_PATH . 'inc/common.inc.php');
// Connect to database
hesk_load_database_functions();
hesk_dbConnect();
// Are we in maintenance mode?
hesk_check_maintenance();
define('PAGE_TITLE', 'CUSTOMER_KB');
// Is Knowledgebase enabled?
if (!$hesk_settings['kb_enable']) {
hesk_error($hesklang['kbdis']);
}
// Do we have any public articles at all?
$res = hesk_dbQuery("SELECT `t1`.`id` FROM `".hesk_dbEscape($hesk_settings['db_pfix'])."kb_articles` AS `t1`
LEFT JOIN `".hesk_dbEscape($hesk_settings['db_pfix'])."kb_categories` AS `t2` ON `t1`.`catid` = `t2`.`id`
WHERE `t1`.`type`='0' AND `t2`.`type`='0' LIMIT 1");
// If yes, load KB functions; if not, disable and hide the KB
if (hesk_dbNumRows($res) < 1) {
hesk_error($hesklang['noa']);
}
// Load KB functions
require(HESK_PATH . 'inc/knowledgebase_functions.inc.php');
/* Rating? */
if (isset($_GET['rating'])) {
// Detect and block robots
if (hesk_detect_bots()) {
?>
<html>
<head>
<meta name="robots" content="noindex, nofollow">
</head>
<body>
</body>
</html>
<?php
}
// Rating
$rating = intval(hesk_GET('rating'));
// Rating value may only be 1 or 5
if ($rating != 1 && $rating != 5) {
die($hesklang['attempt']);
}
// Article ID
$artid = intval(hesk_GET('id', 0)) or die($hesklang['kb_art_id']);
// Check cookies for already rated, rate and set cookie if not already
$_COOKIE['hesk_kb_rate'] = hesk_COOKIE('hesk_kb_rate');
if (strpos($_COOKIE['hesk_kb_rate'], 'a' . $artid . '%') === false) {
// Update rating, make sure it's a public article in a public category
hesk_dbQuery("UPDATE `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_articles` AS `t1`
LEFT JOIN `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` AS `t2` ON t1.`catid` = t2.`id`
SET `rating`=((`rating`*`votes`)+{$rating})/(`votes`+1), t1.`votes`=t1.`votes`+1
WHERE t1.`id`='{$artid}' AND t1.`type`='0' AND t2.`type`='0'
");
}
hesk_setcookie('hesk_kb_rate', $_COOKIE['hesk_kb_rate'] . 'a' . $artid . '%', time() + 2592000);
header('Location: knowledgebase.php?article=' . $artid . '&rated=1');
exit();
}
/* Any category ID set? */
$catid = intval(hesk_GET('category', 1));
$artid = intval(hesk_GET('article', 0));
if (isset($_GET['search'])) {
$query = hesk_input(hesk_GET('search'));
} else {
$query = 0;
}
$hesk_settings['kb_link'] = ($artid || $catid != 1 || $query) ? '<a href="knowledgebase.php" class="smaller">' . $hesklang['kb_text'] . '</a>' : $hesklang['kb_text'];
if ($hesk_settings['kb_search'] && $query) {
hesk_kb_search($query);
} elseif ($artid) {
// Get article from DB, make sure that article and category are public
$result = hesk_dbQuery("SELECT t1.*, t2.`name` AS `cat_name`
FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_articles` AS `t1`
LEFT JOIN `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` AS `t2` ON `t1`.`catid` = `t2`.`id`
WHERE `t1`.`id` = '{$artid}'
AND `t1`.`type` = '0'
AND `t2`.`type` = '0'
");
$article = hesk_dbFetchAssoc($result) or hesk_error($hesklang['kb_art_id']);
hesk_show_kb_article($artid);
} else {
hesk_show_kb_category($catid);
}
echo '</div>';
require_once(HESK_PATH . 'inc/footer.inc.php');
exit();
/*** START FUNCTIONS ***/
function hesk_kb_header($kb_link) {
global $hesk_settings, $hesklang;
?>
<ol class="breadcrumb">
<li><a href="<?php echo $hesk_settings['site_url']; ?>"><?php echo $hesk_settings['site_title']; ?></a></li>
<li><a href="<?php echo $hesk_settings['hesk_url']; ?>"><?php echo $hesk_settings['hesk_title']; ?></a></li>
<li class="active"><?php echo $hesklang['kb_text']; ?></li>
</ol>
<?php
$columnWidth = 'col-md-8';
$showRs = hesk_dbQuery("SELECT `show` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "quick_help_sections` WHERE `id` = 4");
$show = hesk_dbFetchAssoc($showRs);
if (!$show['show']) {
$columnWidth = 'col-md-10 col-md-offset-1';
}
?>
<div class="row">
<?php if ($columnWidth == 'col-md-8'): ?>
<div class="col-md-4">
<div class="panel panel-default">
<div class="panel-heading">
<?php echo $hesklang['quick_help']; ?>
</div>
<div class="panel-body">
<p style="text-align: justify;"><?php echo $hesklang['kb_is']; ?></p>
</div>
</div>
</div>
<?php endif; ?>
<div class="<?php echo $columnWidth; ?>">
<?php
/* Print small search box */
hesk_kbSearchSmall();
/* Print large search box */
hesk_kbSearchLarge();
} // END hesk_kb_header()
function hesk_kb_search($query)
{
global $hesk_settings, $hesklang;
define('HESK_NO_ROBOTS', 1);
/* Print header */
$hesk_settings['tmp_title'] = $hesklang['sr'] . ': ' . hesk_mb_substr(hesk_htmlspecialchars(stripslashes($query)),0,20);
require_once(HESK_PATH . 'inc/header.inc.php');
hesk_kb_header($hesk_settings['kb_link']);
$res = hesk_dbQuery('SELECT t1.`id`, t1.`subject`, LEFT(`t1`.`content`, ' . max(200, $hesk_settings['kb_substrart'] * 2) . ') AS `content`, t1.`rating` FROM `' . hesk_dbEscape($hesk_settings['db_pfix']) . 'kb_articles` AS t1
LEFT JOIN `' . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` AS t2 ON t1.`catid` = t2.`id`
WHERE t1.`type`='0' AND t2.`type`='0' AND MATCH(`subject`,`content`,`keywords`) AGAINST ('" . hesk_dbEscape($query) . "') LIMIT " . intval($hesk_settings['kb_search_limit']));
$num = hesk_dbNumRows($res);
?>
<h4><?php echo $hesklang['sr']; ?> (<?php echo $num; ?>)</h4>
<div class="footerWithBorder blankSpace"></div>
<?php
if ($num == 0) {
echo '<p><i>' . $hesklang['nosr'] . '</i></p>
<p> </p>
';
hesk_show_kb_category(1, 1);
} else {
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td class="roundcornersleft"> </td>
<td>
<div align="center">
<table border="0" cellspacing="1" cellpadding="3" width="100%">
<?php
while ($article = hesk_dbFetchAssoc($res)) {
$txt = hesk_kbArticleContentPreview($article['content']);
if ($hesk_settings['kb_rating']) {
$alt = $article['rating'] ? sprintf($hesklang['kb_rated'], sprintf("%01.1f", $article['rating'])) : $hesklang['kb_not_rated'];
$rat = '<td width="1" valign="top"><img src="img/star_' . (hesk_round_to_half($article['rating']) * 10) . '.png" width="85" height="16" alt="' . $alt . '" border="0" style="vertical-align:text-bottom" /></td>';
} else {
$rat = '';
}
echo '
<tr>
<td>
<table border="0" width="100%" cellspacing="0" cellpadding="1">
<tr>
<td width="1" valign="top"><span class="glyphicon glyphicon-file"></span></td>
<td valign="top"><a href="knowledgebase.php?article=' . $article['id'] . '">' . $article['subject'] . '</a></td>
' . $rat . '
</tr>
</table>
<table border="0" width="100%" cellspacing="0" cellpadding="1">
<tr>
<td width="1" valign="top"><img src="img/blank.gif" width="16" height="10" style="vertical-align:middle" alt="" /></td>
<td><span class="article_list">' . $txt . '</span></td>
</tr>
</table>
</td>
</tr>';
}
?>
</table>
</div>
</td>
</tr>
</table>
<p> <br/>« <a href="javascript:history.go(-1)"><?php echo $hesklang['back']; ?></a></p>
<?php
} // END else
} // END hesk_kb_search()
function hesk_show_kb_article($artid)
{
global $hesk_settings, $hesklang, $article;
// Print header
$hesk_settings['tmp_title'] = $article['subject'];
require_once(HESK_PATH . 'inc/header.inc.php');
hesk_kb_header($hesk_settings['kb_link']);
// Service messages
$service_messages = mfh_get_service_messages('CUSTOMER_VIEW_KB_ARTICLE');
foreach ($service_messages as $sm) {
hesk_service_message($sm);
}
// Update views by 1 - exclude known bots and reloads because of ratings
if (!isset($_GET['rated']) && !hesk_detect_bots()) {
hesk_dbQuery("UPDATE `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_articles` SET `views`=`views`+1 WHERE `id`={$artid}");
}
if (!isset($_GET['suggest'])) {
$historyNumber = isset($_GET['rated']) ? '-2' : '-1';
$goBackText = '<a href="javascript:history.go(' . $historyNumber . ')">
<i class="fa fa-arrow-circle-left" data-toggle="tooltip" data-placement="top" title="' . $hesklang['back'] . '"></i></a>';
} else {
$goBackText = '';
}
echo '<h3 class="text-left">' . $goBackText . ' ' . $article['subject'] . '</h3>
<div class="footerWithBorder blankSpace"></div>
<h4 class="text-left">' . $hesklang['as'] . '</h4>
<div class="kbContent">'
. $article['content'] . '</div>';
if (!empty($article['attachments'])) {
echo '<p><b>' . $hesklang['attachments'] . ':</b><br />';
$att = explode(',', substr($article['attachments'], 0, -1));
foreach ($att as $myatt) {
list($att_id, $att_name) = explode('#', $myatt);
echo '<img src="img/clip.png" width="16" height="16" alt="' . $att_name . '" style="align:text-bottom" /> <a href="download_attachment.php?kb_att=' . $att_id . '" rel="nofollow">' . $att_name . '</a><br />';
}
echo '</p>';
}
// Article rating
if ($hesk_settings['kb_rating'] && strpos(hesk_COOKIE('hesk_kb_rate'), 'a' . $artid . '%') === false) {
echo '
<div id="rating" class="rate" align="right"> <br />' . $hesklang['rart'] . '
<a href="Javascript:void(0)" onclick="Javascript:window.location=\'knowledgebase.php?rating=5&id=' . $article['id'] . '\'" rel="nofollow">' . hesk_mb_strtolower($hesklang['yes']) . '</a> /
<a href="Javascript:void(0)" onclick="Javascript:window.location=\'knowledgebase.php?rating=1&id=' . $article['id'] . '\'" rel="nofollow">' . hesk_mb_strtolower($hesklang['no']) . '</a>
</div>
';
}
// Related articles
if ($hesk_settings['kb_related']) {
$showRelated = false;
$column = 'col-md-12';
require(HESK_PATH . 'inc/mail/email_parser.php');
$query = hesk_dbEscape($article['subject'] . ' ' . convert_html_to_text($article['content']));
// Get relevant articles from the database
$res = hesk_dbQuery("SELECT t1.`id`, t1.`subject`, MATCH(`subject`,`content`,`keywords`) AGAINST ('{$query}') AS `score` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . 'kb_articles` AS t1 LEFT JOIN `' . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` AS t2 ON t1.`catid` = t2.`id` WHERE t1.`type`='0' AND t2.`type`='0' AND MATCH(`subject`,`content`,`keywords`) AGAINST ('{$query}') LIMIT " . intval($hesk_settings['kb_related'] + 1));
// Array with related articles
$related_articles = array();
while ($related = hesk_dbFetchAssoc($res)) {
// Get base match score from the first article
if (!isset($base_score)) {
$base_score = $related['score'];
}
// Ignore this article
if ($related['id'] == $artid) {
continue;
}
// Stop when articles reach less than 10% of base score
if ($related['score'] / $base_score < 0.10) {
break;
}
// This is a valid related article
$related_articles[$related['id']] = $related['subject'];
}
// Print related articles if we have any valid matches
if (count($related_articles)) {
$column = 'col-md-6';
$showRelated = true;
}
}
if ($article['catid'] == 1) {
$link = 'knowledgebase.php';
} else {
$link = 'knowledgebase.php?category=' . $article['catid'];
}
?>
<div class="row">
<div class="<?php echo $column; ?> col-sm-12">
<h4 class="text-left"><?php echo $hesklang['ad']; ?></h4>
<div class="text-left">
<p><?php echo $hesklang['aid']; ?>: <?php echo $article['id']; ?></p>
<p><?php echo $hesklang['category']; ?>: <a
href="<?php echo $link; ?>"><?php echo $article['cat_name']; ?></a></p>
<?php
if ($hesk_settings['kb_date']) {
?>
<p><?php echo $hesklang['dta']; ?>: <?php echo hesk_date($article['dt'], true); ?></p>
<?php
}
if ($hesk_settings['kb_views']) {
?>
<p><?php echo $hesklang['views']; ?>
: <?php echo(isset($_GET['rated']) ? $article['views'] : $article['views'] + 1); ?></p>
<?php
}
if ($hesk_settings['kb_rating']) {
$alt = $article['rating'] ? sprintf($hesklang['kb_rated'], sprintf("%01.1f", $article['rating'])) : $hesklang['kb_not_rated'];
echo '
<p>' . $hesklang['rating'] . ' (' . $hesklang['votes'] . '): <img src="img/star_' . (hesk_round_to_half($article['rating']) * 10) . '.png" width="85" height="16" alt="' . $alt . '" title="' . $alt . '" border="0" style="vertical-align:text-bottom" /> (' . $article['votes'] . ')</p>
';
}
?>
</div>
</div>
<?php if ($showRelated) { ?>
<div class="col-md-6 col-sm-12">
<h4 class="text-left"><?php echo $hesklang['relart']; ?></h4>
<div class="text-left">
<?php
foreach ($related_articles as $id => $subject) {
echo '<span class="glyphicon glyphicon-file icon-link"></span> <a href="knowledgebase.php?article=' . $id . '">' . $subject . '</a><br />';
}
?>
</div>
</div>
<?php } ?>
</div>
<?php
hesk_kbFooter();
} // END hesk_show_kb_article()
function hesk_show_kb_category($catid, $is_search = 0)
{
global $hesk_settings, $hesklang;
$res = hesk_dbQuery("SELECT `name`,`parent` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` WHERE `id`='{$catid}' AND `type`='0' LIMIT 1");
$thiscat = hesk_dbFetchAssoc($res) or hesk_error($hesklang['kb_cat_inv']);
if ($is_search == 0) {
/* Print header */
$hesk_settings['tmp_title'] = $hesk_settings['hesk_title'] . ' - ' . hesk_htmlspecialchars($thiscat['name']);
require_once(HESK_PATH . 'inc/header.inc.php');
hesk_kb_header($hesk_settings['kb_link']);
}
// Display service messages on the default category
if ($catid == 1) {
// Service messages
$service_messages = mfh_get_service_messages('CUSTOMER_KB_HOME');
foreach ($service_messages as $sm) {
hesk_service_message($sm);
}
}
if ($thiscat['parent']) {
$link = ($thiscat['parent'] == 1) ? 'knowledgebase.php' : 'knowledgebase.php?category=' . $thiscat['parent'];
echo '<h3 class="text-left"><a href="javascript:history.go(-1)"><i class="fa fa-arrow-circle-left" data-toggle="tooltip" data-placement="top" title="' . $hesklang['back'] . '"></i></a> ' . $hesklang['kb_cat'] . ': ' . $thiscat['name'] . ' </h3>
<div class="footerWithBorder blankSpace"></div>
<div class="blankSpace"></div>
';
}
$result = hesk_dbQuery("SELECT `id`,`name`,`articles` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_categories` WHERE `parent`='{$catid}' AND `type`='0' ORDER BY `cat_order` ASC");
if (hesk_dbNumRows($result) > 0) {
?>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="text-left"><?php echo $hesklang['kb_cat_sub']; ?></h4>
</div>
<table class="table table-striped">
<?php
$per_col = $hesk_settings['kb_cols'];
$i = 1;
while ($cat = hesk_dbFetchAssoc($result)) {
if ($i == 1) {
echo '<tr>';
}
echo '
<td width="50%" valign="top">
<table border="0">
<tr><td><i class="fa fa-folder"></i> <a href="knowledgebase.php?category=' . $cat['id'] . '">' . $cat['name'] . '</a></td></tr>
';
/* Print most popular/sticky articles */
if ($hesk_settings['kb_numshow'] && $cat['articles']) {
$res = hesk_dbQuery("SELECT `id`,`subject`, `sticky` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_articles` WHERE `catid`='{$cat['id']}' AND `type`='0' ORDER BY `sticky` DESC, `views` DESC, `art_order` ASC LIMIT " . (intval($hesk_settings['kb_numshow']) + 1));
$num = 1;
while ($art = hesk_dbFetchAssoc($res)) {
$icon = 'glyphicon glyphicon-file';
$style = '';
if ($art['sticky']) {
$icon = 'glyphicon glyphicon-pushpin';
$style = 'style="color: #FF0000"';
}
echo '
<tr>
<td ' . $style . '> <span class="' . $icon . '"></span>
<a href="knowledgebase.php?article=' . $art['id'] . '" class="article">' . $art['subject'] . '</a></td>
</tr>';
if ($num == $hesk_settings['kb_numshow']) {
break;
} else {
$num++;
}
}
if (hesk_dbNumRows($res) > $hesk_settings['kb_numshow']) {
echo '<tr><td>» <a href="knowledgebase.php?category=' . $cat['id'] . '"><i>' . $hesklang['m'] . '</i></a></td></tr>';
}
}
echo '
</table>
</td>
';
if ($i == $per_col) {
echo '</tr>';
$i = 0;
}
$i++;
}
/* Finish the table if needed */
if ($i != 1) {
for ($j = 1; $j <= $per_col; $j++) {
echo '<td width="50%"> </td>';
if ($i == $per_col) {
echo '</tr>';
break;
}
$i++;
}
}
?>
</table>
</div>
<?php
} // END if NumRows > 0
?>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="text-left"><?php echo $hesklang['ac_no_colon']; ?></h4>
</div>
<table class="table table-striped">
<tbody>
<?php
$res = hesk_dbQuery("SELECT `id`, `subject`, `sticky`, LEFT(`content`, " . max(200, $hesk_settings['kb_substrart'] * 2) . ") AS `content`, `rating` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "kb_articles` WHERE `catid`='{$catid}' AND `type`='0' ORDER BY `sticky` DESC, `art_order` ASC");
if (hesk_dbNumRows($res) == 0) {
echo '<tr><td><i>' . $hesklang['noac'] . '</i></td></tr>';
} else {
while ($article = hesk_dbFetchAssoc($res)) {
$icon = 'fa fa-file';
$color = '';
$style = '';
$txt = hesk_kbArticleContentPreview($article['content']);
if ($article['sticky']) {
$icon = 'glyphicon glyphicon-pushpin';
$style = 'style="color: #FF0000"';
}
if ($hesk_settings['kb_rating']) {
$alt = $article['rating'] ? sprintf($hesklang['kb_rated'], sprintf("%01.1f", $article['rating'])) : $hesklang['kb_not_rated'];
$rat = '<td><img src="img/star_' . (hesk_round_to_half($article['rating']) * 10) . '.png" width="85" height="16" alt="' . $alt . '" title="' . $alt . '" border="0" style="vertical-align:text-bottom" /></td>';
} else {
$rat = '';
}
echo '
<tr>
<td>
<i class="' . $icon . '" ' . $style . '></i>
<a href="knowledgebase.php?article=' . $article['id'] . '">' . $article['subject'] . '</a>
<br>
<span class="indent-15">' . $txt . '</span>
</td>
' . $rat . '
</tr>';
}
}
?>
</tbody>
</table>
</div>
<?php
/* On the main KB page print out top and latest articles if needed */
if ($catid == 1) {
/* Get list of top articles */
hesk_kbTopArticles($hesk_settings['kb_popart'], 0);
/* Get list of latest articles */
hesk_kbLatestArticles($hesk_settings['kb_latest'], 0);
}
hesk_kbFooter();
} // END hesk_show_kb_category()
function hesk_kbFooter()
{
global $hesk_settings;
$showRs = hesk_dbQuery("SELECT `show` FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "quick_help_sections` WHERE `id` = 4");
$show = hesk_dbFetchAssoc($showRs);
if (!$show['show']) {
echo '<div class="col-md-1"> </div></div>';
}
}
?>