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<?php
/**
* @package Komento
* @copyright Copyright (C) 2012 Stack Ideas Private Limited. All rights reserved.
* @license GNU/GPL, see LICENSE.php
*
* Komento is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
defined('_JEXEC') or die('Restricted access');
/**
* Comment utilities class.
*
*/
class KomentoCommentHelper
{
/**
* Process comments data
**/
static public function process( $row, $admin = 0 )
{
if( isset( $row->processed ) && $row->processed )
{
return $row;
}
Komento::setCurrentComponent( $row->component );
$config = Komento::getConfig();
$konfig = Komento::getKonfig();
$user = JFactory::getUser()->id;
$commentsModel = Komento::getModel( 'comments' );
Komento::import( 'helper', 'date' );
// Duplicate created date first before lapsed time messing up the original date
$row->unformattedDate = $row->created;
// get number of child for each comment
$row->childs = $commentsModel->getTotalChilds( $row->id );
// set url to proper url
if( !empty($row->url) )
{
// Add 'http://' if not present
$row->url = ( 0 === strpos( $row->url, 'http' ) ) ? $row->url : 'http://' . $row->url;
}
// 1. Load article and article details
$application = Komento::loadApplication( $row->component )->load( $row->cid );
if( $application === false )
{
$application = Komento::getErrorApplication( $row->component, $row->cid );
}
// set component title
$row->componenttitle = $application->getComponentName();
// set content title
$row->contenttitle = $application->getContentTitle();
// get permalink
$row->pagelink = $application->getContentPermalink();
$row->permalink = $row->pagelink . '#kmt-' . $row->id;
// set parentlink
if( $row->parent_id != 0 )
{
$row->parentlink = $row->pagelink . '#kmt-' . $row->parent_id;
}
// to be reassign
$row->shortlink = $row->permalink;
// set extension object
// use this to check if application is able to load article details
// if row->extension is false, means error loading article details
$row->extension = $application;
if( $admin == 0 )
{
// frontend
$actionsModel = Komento::getModel( 'actions' );
$socialHelper = Komento::getHelper( 'social' );
// parse comments HTML
$row->comment = self::parseComment( $row->comment );
// author's object
$row->author = Komento::getProfile( $row->created_by );
// don't convert for guest
if( $row->created_by != 0 && $row->created_by != $row->author->id )
{
if( $config->get( 'enable_orphanitem_convert' ) )
{
KomentoCommentHelper::convertOrphanitem( $row->id );
}
}
if( $row->created_by != 0 )
{
switch( $config->get( 'name_type' ) )
{
case 'username':
// force username
$row->name = $row->author->getUsername();
break;
case 'name':
$row->name = $row->author->getName();
break;
case 'default':
default:
// default name to profile if name is null
if( empty( $row->name ) )
{
$row->name = $row->author->getName();
}
break;
}
}
else
{
if( empty( $row->name ) )
{
$row->name = JText::_( 'COM_KOMENTO_GUEST' );
}
else
{
if( $config->get( 'guest_label' ) )
{
$row->name = JText::_( 'COM_KOMENTO_GUEST' ) . ' - '. $row->name;
}
}
}
// set datetime
if( $config->get( 'enable_lapsed_time' ) )
{
$row->created = KomentoDateHelper::getLapsedTime( $row->unformattedDate );
}
else
{
$dateformat = $config->get( 'date_format' );
$row->created = KomentoDateHelper::toFormat( KomentoDateHelper::dateWithOffSet( $row->created ), $dateformat );
// $row->created = Komento::getDate( $row->created )->toFormat( $dateformat );
}
// get actions likes
$row->likes = $actionsModel->countAction( 'likes', $row->id );
// get user liked
$row->liked = $actionsModel->liked( $row->id, $user );
// get user reported
$row->reported = $actionsModel->reported( $row->id, $user );
}
else
{
// backend
// format comments
$row->comment = nl2br( Komento::getHelper( 'comment' )->parseBBCode( $row->comment ) );
$row->created = KomentoDateHelper::dateWithOffSet( $row->created );
}
$row->processed = true;
return $row;
}
static public function parseComment( $comment )
{
$config = Komento::getConfig();
// word censoring
if( $config->get( 'filter_word' ) )
{
$comment = self::parseCensor( $comment );
}
// parseBBcode to HTML
$comment = self::parseBBCode( $comment );
// parse newline to br tags
// $comment = nl2br( $comment );
return $comment;
}
public static function parseCensor($text)
{
// Komento::getHelper('filter');
// $filterHelper = new KomentoFilterHelper;
$filterHelper = Komento::getHelper('filter');
$config = Komento::getConfig();
$textToBeFilter = explode(',', $config->get('filter_word_text'));
// lets do some AI here. for each string, if there is a space,
// remove the space and make it as a new filter text.
if( count($textToBeFilter) > 0 )
{
$newFilterSet = array();
foreach( $textToBeFilter as $item)
{
$item = trim( $item );
if( JString::stristr($item, ' ') !== false )
{
$newKeyWord = JString::str_ireplace(' ', '', $item);
$newFilterSet[] = $newKeyWord;
}
}
if( count($newFilterSet) > 0 )
{
$tmpNewFitler = array_merge($textToBeFilter, $newFilterSet);
$textToBeFilter = array_unique($tmpNewFitler);
}
}
$filterHelper->strings = $textToBeFilter;
$filterHelper->text = $text;
return $filterHelper->filter();
}
public static function parseBBCode($text)
{
$config = Komento::getConfig();
$nofollow = $config->get( 'links_nofollow' ) ? ' rel="nofollow"' : '';
$maxdimension = '';
if( $config->get( 'max_image_width' ) || $config->get( 'max_image_height' ) )
{
$maxdimension = ' style="';
if( $config->get( 'max_image_width' ) )
{
$maxdimension .= 'max-width:' . $config->get( 'max_image_width' ) . 'px;';
}
if( $config->get( 'max_image_height' ) )
{
$maxdimension .= 'max-height:' . $config->get( 'max_image_width' ) . 'px;';
}
$maxdimension .= '"';
}
// Converts all html entities properly
$text = htmlspecialchars( $text , ENT_NOQUOTES );
$text = trim($text);
$text = preg_replace_callback('/\[code( type="(.*?)")?\](.*?)\[\/code\]/ms', array('KomentoCommentHelper','escape') , $text );
// avoid smileys in pre tag gets replaced
$text = KomentoCommentHelper::encodePre( $text );
// change new line to br (without affecting pre)
$text = nl2br( $text );
// BBCode to find...
$in = array( '/\[b\](.*?)\[\/b\]/ms',
'/\[i\](.*?)\[\/i\]/ms',
'/\[u\](.*?)\[\/u\]/ms',
'/\[img\](.*?)\[\/img\]/ms',
'/\[email\](.*?)\[\/email\]/ms',
'/\[size\="?(.*?)"?\](.*?)\[\/size\]/ms',
'/\[color\="?(.*?)"?\](.*?)\[\/color\]/ms',
'/\[quote\](.*?)\[\/quote\]/ms'
// '/\[list\=(.*?)\](.*?)\[\/list\]/ms',
// '/\[list\](.*?)\[\/list\]/ms',
// '/\[\*\](.*?)\[\/\*\]/ms'
);
// And replace them by...
$out = array( '<strong>\1</strong>',
'<em>\1</em>',
'<u>\1</u>',
'<img src="\1" alt="\1"' . $maxdimension . ' />',
'<a target="_blank" href="mailto:\1"' . $nofollow . '>\1</a>',
'<span style="font-size:\1%">\2</span>',
'<span style="color:\1">\2</span>',
'<blockquote>\1</blockquote>'
// '<ol start="\1">\2</ol>',
// '<ul>\1</ul>',
// '<li>\1</li>'
);
// strip out bbcode data first
$tmp = preg_replace( $in , '' , $text );
// strip out bbcode url data
$urlin = '/\[url\="?(.*?)"?\](.*?)\[\/url\]/ms';
$tmp = preg_replace( $urlin, '', $tmp );
// strip out video links too
$tmp = Komento::getHelper( 'videos' )->strip( $tmp );
// replace url
if( $config->get( 'auto_hyperlink' ) )
{
$text = self::replaceURL( $tmp, $text );
}
// replace video links
if( $config->get( 'allow_video' ) )
{
$text = Komento::getHelper( 'videos' )->replace( $text );
}
else
{
$text = Komento::getHelper( 'videos' )->strip( $text );
}
// replace bbcode with html
$text = preg_replace( $in, $out, $text );
// replace url bbcode with html
$text = self::replaceBBUrl( $text );
// manual fix for unwrapped li issue
$text = self::replaceBBList( $text );
$smileyin = array();
$smileyout = array();
if( $config->get( 'bbcode_smile' ) )
{
$smileyin[] = ':)';
$smileyout[] = '<img alt=":)" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-smile.png" />';
}
if( $config->get( 'bbcode_happy' ) )
{
$smileyin[] = ':D';
$smileyout[] = '<img alt=":D" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-happy.png" />';
}
if( $config->get( 'bbcode_surprised' ) )
{
$smileyin[] = ':o';
$smileyout[] = '<img alt=":o" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-surprised.png" />';
}
if( $config->get( 'bbcode_tongue' ) )
{
$smileyin[] = ':p';
$smileyout[] = '<img alt=":p" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-tongue.png" />';
}
if( $config->get( 'bbcode_unhappy' ) )
{
$smileyin[] = ':(';
$smileyout[] = '<img alt=":(" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-unhappy.png" />';
}
if( $config->get( 'bbcode_wink' ) )
{
$smileyin[] = ';)';
$smileyout[] = '<img alt=";)" class="kmt-emoticon" src="'.KOMENTO_EMOTICONS_DIR.'emoticon-wink.png" />';
}
// add in custom smileys
$smileycode = $config->get( 'smileycode' );
$smileypath = $config->get( 'smileypath' );
if( is_array( $smileycode ) && is_array( $smileypath ) )
{
foreach( $smileycode as $index => $code )
{
if( !empty( $code ) && !empty( $smileypath[$index] ) )
{
$smileyin[] = $code;
$smileyout[] = '<img alt="' . $code . '" class="kmt-emoticon" src="' . $smileypath[$index] . '" />';
}
}
}
$text = str_replace($smileyin, $smileyout, $text);
// done parsing emoticons and bbcode, decode pre text back
$text = KomentoCommentHelper::decodePre( $text );
// paragraphs
$text = str_replace("\r", "", $text);
$text = "<p>".preg_replace("/(\n){2,}/", "</p><p>", $text)."</p>";
// $text = preg_replace_callback('/<pre>(.*?)<\/pre>/ms', "removeBr", $text);
// $text = preg_replace('/<p><pre(.*)>(.*?)<\/pre><\/p>/ms', "<pre\\1>\\2</pre>", $text);
$text = preg_replace_callback('/<ul>(.*?)<\/ul>/ms', array('KomentoCommentHelper','removeBr'), $text);
// fix [list] within [*] causing dom errors
$text = preg_replace('/<li>(.*?)<ul>(.*?)<\/ul>(.*?)<\/li>/ms', "\\1<ul>\\2</ul>\\3", $text);
$text = preg_replace('/<p><ul>(.*?)<\/ul><\/p>/ms', "<ul>\\1</ul>", $text);
return $text;
}
public static function replaceURL( $tmp , $text )
{
$config = Komento::getConfig();
$nofollow = $config->get( 'links_nofollow' ) ? ' rel="nofollow"' : '';
// $pattern = '@(https?://[-\w\.]+(:\d+)?(/([\w/_\.-]*(\?\S+)?)?)?)@';
$pattern = '@(?i)\b((?:https?://|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?«»“”‘’]))@';
preg_match_all( $pattern , $tmp , $matches );
if( isset( $matches[ 0 ] ) && is_array( $matches[ 0 ] ) )
{
foreach( $matches[ 0 ] as $match )
{
$text = str_ireplace( $match , '<a target="_blank" href="' . $match . '"' . $nofollow . '>' . $match . '</a>' , $text );
}
}
return $text;
}
public static function replaceBBUrl( $text )
{
$config = Komento::getConfig();
$nofollow = $config->get( 'links_nofollow' ) ? ' rel="nofollow"' : '';
$pattern = '/\[url\="?(.*?)"?\](.*?)\[\/url\]/ms';
preg_match_all( $pattern, $text, $matches );
if( !empty( $matches ) )
{
$sources = array_shift( $matches );
$urls = $matches[0];
$txts = $matches[1];
for( $i = 0; $i < count( $sources ); $i++ )
{
$source = $sources[$i];
if( !empty( $source ) )
{
$url = $urls[$i];
$txt = $txts[$i];
if( stripos( $url, 'http://' ) !== 0 && stripos( $url, 'https://' ) !== 0 && stripos( $url, 'ftp://' ) !== 0 )
{
$url = 'http://' . $url;
}
$replace = '<a target="_blank" href="' . $url . '"' . $nofollow . '>' . $txt . '</a>';
$text = str_ireplace( $source, $replace, $text );
}
}
}
return $text;
}
public static function replaceBBList( $text )
{
// 1. Fix invalid nesting issue with [*] and [list]
// 2. Create a temporary text with all [list] block removed
// 3. Wrap all remaining [*] blocks with [list] block in the temporary text
// 4. Convert [list] and [*] blocks on the original text
// Step 1
$pattern = '/\[\*\](.*?)\[list\=(.*?)\](.*?)\[\/list\](.*?)\[\/\*\]/ms';
$replace = "\\1[list=\\2]\\3[/list]\\4";
$text = preg_replace( $pattern, $replace, $text );
$pattern = '/\[\*\](.*?)\[list\](.*?)\[\/list\](.*?)\[\/\*\]/ms';
$replace = "\\1[list]\\2[/list]\\3";
$text = preg_replace( $pattern, $replace, $text );
// Step 2
$bblist = array(
'/\[list\=(.*?)\](.*?)\[\/list\]/ms',
'/\[list\](.*?)\[\/list\]/ms'
);
$tmp = preg_replace( $bblist, '', $text );
// Step 3
$pattern = '/\[\*\](.*?)\[\/\*\]/ms';
preg_match_all( $pattern, $tmp, $matches );
if( !empty( $matches ) )
{
$sources = array_shift( $matches );
if( !empty( $sources ) )
{
foreach( $sources as $source )
{
$replace = '[list]' . $source . '[/list]';
$text = str_ireplace( $source, $replace, $text );
}
}
}
// Step 4
$in = array(
'/\[list\=(.*?)\](.*?)\[\/list\]/ms',
'/\[list\](.*?)\[\/list\]/ms',
'/\[\*\](.*?)\[\/\*\]/ms'
);
$out = array(
'<ol start="\1">\2</ol>',
'<ul>\1</ul>',
'<li>\1</li>'
);
$text = preg_replace( $in, $out, $text );
return $text;
}
public static function escape($s) {
$code = $s[3];
$code = str_replace("[", "[", $code);
$code = str_replace("]", "]", $code);
$brush = isset( $s[2] ) && !empty( $s[2] ) ? $s[2] : 'xml';
$code = html_entity_decode( $code );
$code = Komento::getHelper( 'String' )->escape( $code );
if( $brush != '' )
{
$result = '<pre><code class="language-' . htmlspecialchars( $brush ) . '">' . $code . '</code></pre>';
}
else
{
$result = '<pre><code>' . $code . '</code></pre>';
}
return $result;
}
public static function encodePre( $text ) {
$pattern = '/<pre.*?>(.*?)<\/pre>/s';
preg_match_all( $pattern , $text , $matches );
if( isset( $matches[ 0 ] ) && is_array( $matches[ 0 ] ) )
{
foreach( $matches[ 1 ] as $match )
{
$text = str_ireplace( $match , base64_encode( $match ), $text );
}
}
return $text;
}
public static function decodePre( $text ) {
$pattern = '/<pre.*?>(.*?)<\/pre>/s';
preg_match_all( $pattern , $text , $matches );
if( isset( $matches[ 0 ] ) && is_array( $matches[ 0 ] ) )
{
foreach( $matches[ 1 ] as $match )
{
$text = str_ireplace( $match , base64_decode( $match ) , $text );
}
}
return $text;
}
public static function removeBr($s) {
return str_replace("<br />", "", $s[0]);
}
public static function convertOrphanitem( $id )
{
$config = Komento::getConfig();
$comment = Komento::getTable( 'comments' );
$comment->load( $id );
$comment->created_by = $config->get( 'orphanitem_ownership' );
$comment->store();
return true;
}
}