Your IP : 216.73.216.158
<?php
/**
* @package Articles Anywhere
* @version 6.3.0
*
* @author Peter van Westen <info@regularlabs.com>
* @link http://www.regularlabs.com
* @copyright Copyright © 2017 Regular Labs All Rights Reserved
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
*/
namespace RegularLabs\Plugin\System\ArticlesAnywhere;
defined('_JEXEC') or die;
use ArticlesAnywhereArticleModel;
use ArticlesAnywhereArticleView;
use ContentHelperRoute;
use JAccess;
use JComponentHelper;
use JFactory;
use JFile;
use JFolder;
use JHtml;
use JLayoutFile;
use JLayoutHelper;
use Joomla\Registry\Registry;
use JPath;
use JRoute;
use JText;
use JUri;
use RegularLabs\Library\Date as RL_Date;
use RegularLabs\Library\Language as RL_Language;
use RegularLabs\Library\PluginTag as RL_PluginTag;
use RegularLabs\Library\RegEx as RL_RegEx;
use RegularLabs\Library\StringHelper as RL_String;
use TagsHelperRoute;
class DataTags
{
protected $tables = [];
protected $field_ids = [];
public function handleIfStatements(&$string, &$article)
{
list($tag_start, $tag_end) = Params::getTagCharacters();
RL_RegEx::matchAll(
RL_RegEx::quote($tag_start) . 'if[\: ].*?' . RL_RegEx::quote($tag_start) . '/if' . RL_RegEx::quote($tag_end),
$string,
$matches
);
if (empty($matches))
{
return;
}
Article::set($article);
if (strpos($string, 'text') !== false)
{
$article->text = (isset($article->introtext) ? $article->introtext : '')
. (isset($article->introtext) ? $article->fulltext : '');
}
foreach ($matches as $match)
{
RL_RegEx::matchAll(
$tag_start . '(if|else ?if|else)(?:[\: ](.+?))?' . $tag_end . '(.*?)(?=' . $tag_start . '(?:else|\/if))',
$match['0'],
$ifs
);
if (empty($ifs))
{
continue;
}
$replace = $this->getIfResult($ifs);
// replace if block with the IF value
$string = RL_String::replaceOnce($match['0'], $replace, $string);
}
$article = Article::get();
}
private function getIfResult(&$matches)
{
foreach ($matches as $if)
{
if ( ! $this->passIfStatements($if))
{
continue;
}
return $if['3'];
}
return '';
}
private function passIfStatements($if)
{
$statement = trim($if['2']);
if (trim($if['1']) == 'else' && $statement == '')
{
return true;
}
if ($statement == '')
{
return false;
}
$statement = RL_String::html_entity_decoder($statement);
$statement = str_replace(
[' AND ', ' OR '],
[' && ', ' || '],
$statement
);
$ands = explode(' && ', $statement);
$pass = false;
foreach ($ands as $statement)
{
$ors = explode(' || ', $statement);
foreach ($ors as $statement)
{
if ($pass = $this->passIfStatement($statement))
{
break;
}
}
if ( ! $pass)
{
break;
}
}
return $pass;
}
private function passIfStatement($statement)
{
$statement = trim($statement);
/*
* In array syntax
* 'bar' IN foo
* 'bar' !IN foo
* 'bar' NOT IN foo
*/
if (RL_RegEx::match('^[\'"]?(?P<val>.*?)[\'"]?\s+(?P<operator>(?:NOT\s+)?\!?IN)\s+(?P<key>[a-zA-Z0-9-_]+)$', $statement, $match))
{
$reverse = ($match['operator'] == 'NOT IN' || $match['operator'] == '!NOT');
return $this->passIfStatementArray(
$this->getValueFromData($match['key']),
$this->getValueFromData($match['val'], $match['val']),
$reverse
);
}
/*
* String comparison syntax:
* foo = 'bar'
* foo != 'bar'
*/
if (RL_RegEx::match('^(?P<key>[a-z0-9-_]+)\s*(?P<operator>\!?=)=*\s*[\'"]?(?P<val>.*?)[\'"]?$', $statement, $match))
{
$reverse = ($match['operator'] == '!=');
return $this->passIfStatementArray(
$this->getValueFromData($match['key']),
$this->getValueFromData($match['val'], $match['val']),
$reverse
);
}
/*
* Lesser/Greater than comparison syntax:
* foo < bar
* foo > bar
* foo <= bar
* foo >= bar
*/
if (RL_RegEx::match('^(?P<key>[a-z0-9-_]+)\s*(?P<operator>>=?|<=?)=*\s*[\'"]?(?P<val>.*?)[\'"]?$', $statement, $match))
{
return $this->passIfStatementCompare(
$this->getValueFromData($match['key']),
$this->getValueFromData($match['val'], $match['val']),
$match['operator']
);
}
/*
* Variable check syntax:
* foo (= not empty)
* !foo (= empty)
*/
if (RL_RegEx::match('^(?P<operator>\!?)(?P<key>[a-z0-9-_]+)$', $statement, $match))
{
$reverse = ($match['operator'] == '!');
return $this->passIfStatementSimple(
$this->getValueFromData($match['key']),
$reverse
);
}
return $this->passIfStatementPHP($statement);
}
public function getValueFromData($key, $default = null)
{
if ( ! is_string($key))
{
return $default;
}
$key = trim($key);
if (in_array(
$key,
['NOW', 'now()', 'date()', 'JFactory::getDate()']
))
{
return JFactory::getDate()->toSql();
}
if (Numbers::exists($key))
{
return Numbers::get($key);
}
$article = Article::get();
if (isset($article->{$key}))
{
return $article->{$key};
}
return $default;
}
private function passIfStatementSimple($haystack, $reverse = 0)
{
if (is_null($haystack))
{
return false;
}
$pass = ! empty($haystack);
return $reverse ? ! $pass : $pass;
}
private function passIfStatementCompare($haystack, $needle, $operator)
{
switch ($operator)
{
case '<':
return $haystack < $needle;
case '<=':
return $haystack <= $needle;
case '>':
return $haystack > $needle;
case '>=':
return $haystack >= $needle;
}
return false;
}
private function passIfStatementArray($haystack, $needle, $reverse = 0)
{
if (is_null($haystack))
{
return false;
}
if ( ! is_array($haystack))
{
$haystack = explode(',', str_replace(', ', ',', $haystack));
}
if ( ! is_array($haystack))
{
return false;
}
$pass = false;
foreach ($haystack as $string)
{
if ($pass = $this->passString($string, $needle))
{
break;
}
}
return $reverse ? ! $pass : $pass;
}
private function passIfStatementPHP($statement)
{
$php = RL_String::html_entity_decoder($statement);
$php = RL_RegEx::replace('([^<>])=([^<>])', '\1==\2', $php);
// replace keys with $article->key
$php = '$article->' . RL_RegEx::replace('\s*(&&|&&|\|\|)\s*', ' \1 $article->', $php);
// fix negative keys from $article->!key to !$article->key
$php = str_replace('$article->!', '!$article->', $php);
$numbers = Numbers::getAll();
// replace back data variables
foreach ($numbers as $key => $val)
{
$php = str_replace('$article->' . $key, (int) $val, $php);
}
$php = str_replace('$article->empty', (int) (Numbers::get('count') > 0), $php);
// Place statement in return check
$php = 'return ( ' . $php . ' ) ? true : false;';
// Trim the text that needs to be checked and replace weird spaces
$php = RL_RegEx::replace(
'(\$article->[a-z0-9-_]*)',
'trim(str_replace(chr(194) . chr(160), " ", \1))',
$php
);
// Fix extra-1 field syntax: $article->extra-1 to $article->{'extra-1'}
$php = RL_RegEx::replace(
'->(extra-[a-z0-9]+)',
'->{\'\1\'}',
$php
);
$temp_PHP_func = create_function('&$article', $php);
// evaluate the script
// but without using the the evil eval
ob_start();
$pass = $temp_PHP_func(Article::get());
unset($temp_PHP_func);
ob_end_clean();
return $pass;
}
private function passString($haystack, $needle)
{
if ( ! is_string($haystack) && ! is_string($needle)
&& ! is_numeric($haystack)
&& ! is_numeric($needle)
)
{
return false;
}
// Simple string comparison
if (strpos($needle, '*') === false && strpos($needle, '+') === false)
{
return strtolower($haystack) == strtolower($needle);
}
// Using wildcards
$needle = RL_RegEx::quote($needle);
$needle = str_replace(
['\\\\\\*', '\\*', '[:asterisk:]', '\\\\\\+', '\\+', '[:plus:]'],
['[:asterisk:]', '.*', '\\*', '[:plus:]', '.+', '\\+'],
$needle
);
return RL_RegEx::match($needle, $haystack);
}
public function replaceTags(&$text, &$matches, &$article)
{
Article::set($article);
foreach ($matches as $match)
{
$string = $this->processTag($match['1']);
if ($string === false)
{
continue;
}
$text = str_replace($match['0'], $string, $text);
}
}
public function getTagValues($string)
{
$tag = $this->getTagValuesFromString($string);
$key_aliases = [
'limit' => ['letters', 'letter_limit', 'characters', 'character_limit'],
'words' => ['word', 'word_limit'],
'paragraphs' => ['paragraph', 'paragraph_limit'],
'class' => ['classes'],
];
RL_PluginTag::replaceKeyAliases($tag, $key_aliases);
return $tag;
}
public function getTagValuesFromString($string)
{
if (RL_RegEx::match('^layout[ \:]([^=]+)$', $string, $match))
{
$string = 'layout layout="' . trim($match['1']) . '"';
}
if (strpos($string, ':') !== false
&& RL_RegEx::match('^([a-z]+ )?[a-z]+\s*:\s*[a-z0-9\|]', $string)
)
{
return $this->getTagValuesFromOldSyntax($string);
}
$string = RL_RegEx::replace('^(.*?) ', 'type="\1" ', $string);
return RL_PluginTag::getAttributesFromString($string, 'type');
}
public function getTagValuesFromOldSyntax($string)
{
$tag = (object) [];
if (strpos($string, ' ') !== false
&& RL_RegEx::match('^[a-z]+ [a-z0-9\|]', $string)
)
{
$data = explode(' ', $string, 2);
$tag->type = array_shift($data);
$data = explode('|', array_shift($data));
foreach ($data as $parameter)
{
if (strpos($parameter, ':') === false)
{
continue;
}
list($key, $val) = explode(':', $parameter, 2);
$tag->{$key} = $val;
unset($data[array_search($key, $data)]);
}
return $tag;
}
$data = explode(':', $string);
$tag->type = array_shift($data);
foreach ($data as $parameter)
{
if (strpos($parameter, '=') === false)
{
continue;
}
list($key, $val) = explode('=', $parameter, 2);
$tag->{$key} = $val;
}
if (empty($data))
{
return $tag;
}
switch (true)
{
// Readmore link
case (strpos($tag->type, 'readmore') === 0):
$tag->text = array_shift($data);
if (strpos($tag->text, '|') === false)
{
break;
}
list($tag->text, $tag->class) = explode('|', $tag->text, 2);
break;
// Title / Text
case (
$tag->type == 'title'
|| strpos($tag->type, 'title:') === 0
|| strpos($tag->type, 'text') === 0)
|| (strpos($tag->type, 'intro') === 0)
|| (strpos($tag->type, 'full') === 0
):
if (in_array('strip', $data))
{
$tag->strip = 1;
unset($data[array_search('strip', $data)]);
}
if (in_array('noimages', $data))
{
$tag->noimages = 1;
unset($data[array_search('noimages', $data)]);
}
if (empty($data))
{
break;
}
$limit = array_shift($data);
if (strpos($limit, 'word') !== false)
{
$tag->words = (int) $limit;
break;
}
$tag->limit = (int) $limit;
break;
// Database values
case (RL_String::is_alphanumeric(str_replace(['-', '_'], '', $tag->type))):
$tag->format = array_shift($data);
break;
}
return $tag;
}
public function processTag($string)
{
$tag = $this->getTagValues($string);
switch (true)
{
// Link closing tag
case ($tag->type == '/link'):
return '</a>';
// Total count
case ($tag->type == 'total' || $tag->type == 'totalcount'):
return Numbers::get('total');
// Counter
case ($tag->type == 'count' || $tag->type == 'counter'):
return Numbers::get('count');
// Div closing tag
case ($tag->type == '/div'):
return '</div>';
// Div
case ($tag->type == 'div'):
return $this->processTagDiv($tag);
// URL
case ($tag->type == 'url' || $tag->type == 'nonsefurl'):
return $this->getArticleUrl();
// SEF URL
case ($tag->type == 'sefurl'):
return JRoute::_($this->getArticleUrl());
// Link tag
case ($tag->type == 'link'):
return $this->processTagLink();
// Readmore link
case ($tag->type == 'readmore'):
return $this->processTagReadmore($tag);
// Title
case ($tag->type == 'title'):
return $this->processTagTitle($tag);
// Text
case (in_array($tag->type, ['text', 'introtext', 'fulltext'])):
return $this->processTagText($tag);
// Intro image
case ($tag->type == 'image-intro'):
return $this->processTagImageIntro();
// Fulltext image
case ($tag->type == 'image-fulltext'):
return $this->processTagImageFulltext();
// Layout
case ($tag->type == 'layout'):
return $this->processTagLayout($tag);
// Database values
case (RL_String::is_alphanumeric(str_replace(['-', '_'], '', $tag->type))):
return $this->processTagDatabase($tag);
default:
return false;
}
}
public function processTagDiv($tag)
{
$attributes = [];
if (isset($tag->class))
{
$attributes[] = 'class="' . $tag->class . '"';
}
$style = [];
if (isset($tag->width))
{
if (is_numeric($tag->width))
{
$tag->width .= 'px';
}
$style[] = 'width:' . $tag->width;
}
if (isset($tag->height))
{
if (is_numeric($tag->height))
{
$tag->height .= 'px';
}
$style[] = 'height:' . $tag->height;
}
if (isset($tag->align))
{
$style[] = 'float:' . $tag->align;
}
else if (isset($tag->float))
{
$style[] = 'float:' . $tag->float;
}
if ( ! empty($style))
{
$attributes[] = 'style="' . implode(';', $style) . ';"';
}
if (empty($attributes))
{
return '<div>';
}
return trim('<div ' . implode(' ', $attributes)) . '>';
}
public function processTagReadmore($tag)
{
if ( ! $link = $this->getArticleUrl())
{
return false;
}
// load the content language file
RL_Language::load('com_content', JPATH_SITE);
if ( ! empty($tag->class))
{
return '<a class="' . trim($tag->class) . '" href="' . $link . '">' . $this->getReadMoreText($tag) . '</a>';
}
$config = JComponentHelper::getParams('com_content');
$config->set('access-view', true);
$article = Article::get();
if ($text = $this->getCustomReadMoreText($tag))
{
$article->alternative_readmore = $text;
$config->set('show_readmore_title', false);
}
return JLayoutHelper::render('joomla.content.readmore', ['item' => $article, 'params' => $config, 'link' => $link]);
}
private function getCustomReadMoreText($tag)
{
if (empty($tag->text))
{
return '';
}
$title = trim($tag->text);
$text = JText::sprintf($title, Article::get('title'));
return $text ?: $title;
}
public function getReadMoreText($tag)
{
if ($text = $this->getCustomReadMoreText($tag))
{
return $text;
}
$config = JComponentHelper::getParams('com_content');
$article = Article::get();
switch (true)
{
case (isset($article->alternative_readmore) && $article->alternative_readmore) :
$text = $article->alternative_readmore;
break;
case ( ! $config->get('show_readmore_title', 0)) :
$text = JText::_('COM_CONTENT_READ_MORE_TITLE');
break;
default:
$text = JText::_('COM_CONTENT_READ_MORE');
break;
}
if ( ! $config->get('show_readmore_title', 0))
{
return $text;
}
return $text . JHtml::_('string.truncate', ($article->title), $config->get('readmore_limit'));
}
public function processTagLink()
{
if ( ! $link = $this->getArticleUrl())
{
return false;
}
return '<a href="' . $link . '">';
}
public function processTagTitle($extra)
{
$article = Article::get();
$title = isset($article->title) ? $article->title : '';
if (empty($title) || empty($extra))
{
return $title;
}
return Text::process($title, $extra);
}
public function processTagText($tag)
{
$article = Article::get();
switch (true)
{
case ($tag->type == 'introtext'):
if ( ! isset($article->introtext))
{
return false;
}
$article->text = $article->introtext;
break;
case ($tag->type == 'fulltext'):
if ( ! isset($article->fulltext))
{
return false;
}
$article->text = $article->fulltext;
$this->hitArticle();
break;
case ($tag->type == 'text'):
$article->text = (isset($article->introtext) ? $article->introtext : '')
. (isset($article->fulltext) ? $article->fulltext : '');
$this->hitArticle();
break;
}
if ($article->text == '')
{
return '';
}
$string = $article->text;
return Text::process($string, $tag);
}
public function hitArticle()
{
$params = Params::get();
if ( ! $params->increase_hits_on_text)
{
return;
}
require_once __DIR__ . '/Helpers/article_model.php';
$model = new ArticlesAnywhereArticleModel;
$article = Article::get();
$model->hit($article->id);
}
public function processTagImageIntro()
{
$article = Article::get();
if (empty($article->image_intro))
{
return '';
}
$class = 'img-intro-' . $article->float_intro;
return self::getImageHtml($article->image_intro, $article->image_intro_alt, $article->image_intro_caption, $class);
}
public function processTagImageFulltext()
{
$article = Article::get();
if (empty($article->image_fulltext))
{
return '';
}
$class = 'img-fulltext-' . $article->float_fulltext;
return self::getImageHtml($article->image_fulltext, $article->image_fulltext_alt, $article->image_fulltext_caption, $class);
}
public static function getImageHtml($url, $alt = '', $caption = '', $class = '', $in_div = true)
{
$img_class = $caption ? 'caption' : '';
$caption = $caption ? ' title="' . htmlspecialchars($caption) . '"' : '';
if ($in_div)
{
return '<div class="' . htmlspecialchars($class) . '"><img' . $caption . ' src="' . htmlspecialchars($url) . '" alt="' . htmlspecialchars($alt) . '" class="' . $img_class . '"></div>';
}
$img_class = trim($img_class . ' ' . htmlspecialchars($class));
return '<img' . $caption . ' src="' . htmlspecialchars($url) . '" alt="' . htmlspecialchars($alt) . '" class="' . $img_class . '">';
}
public function processTagLayout($tag)
{
$article = Article::get();
if (
JFactory::getApplication()->input->get('option') == 'com_finder'
&& JFactory::getApplication()->input->get('format') == 'json'
)
{
// Force simple layout for finder indexing, as the setParams causes errors
return
'<h2>' . $article->title . '</h2>'
. $this->processTagText('text', $tag);
}
$params = Params::get();
list($template, $layout) = $this->getTemplateAndLayout($tag);
require_once __DIR__ . '/Helpers/article_view.php';
$view = new ArticlesAnywhereArticleView;
$view->setParams($article->id, $template, $layout, $params);
return $view->display();
}
public function processTagDatabase($tag, $return_empty = false)
{
// Get data from data object, even, uneven, first, last
if (is_bool(Numbers::get($tag->type)))
{
return Numbers::get($tag->type) ? 'true' : 'false';
}
// Get data from db columns
$string = $this->getTagFromDatabase($tag);
if ($string === false || is_array($string) || is_object($string))
{
return $return_empty ? '' : false;
}
// Convert string if it is a date
$string = $this->convertDateToString($string, isset($tag->format) ? $tag->format : '', $tag->type);
return $string;
}
private function getTagFromDatabase($tag)
{
$article = Article::get();
if (isset($article->{$tag->type}))
{
return $article->{$tag->type};
}
return false;
}
public function convertDateToString($string, $format, $key)
{
// Check if string could be a date
if (
// These keys are never dates
in_array($key, [
'title', 'alias',
'cat', 'cat_title', 'cat_alias', 'cat_description',
'author', 'author_name',
'text', 'introtext', 'fulltext',
])
// Dates must contain a '-' and not letters
|| (strpos($string, '-') == false)
|| RL_RegEx::match('[a-z]', $string)
// Check string it passes a simple strtotime
|| ! strtotime($string)
)
{
return $string;
}
if (empty($format))
{
$format = JText::_('DATE_FORMAT_LC2');
}
if (strpos($format, '%') !== false)
{
$format = RL_Date::strftimeToDateFormat($format);
}
return JHtml::_('date', $string, $format);
}
public function canEdit()
{
$user = JFactory::getUser();
if ($user->get('guest'))
{
return false;
}
$article = Article::get();
$userId = $user->get('id');
$asset = 'com_content.article.' . $article->id;
// Check general edit permission first.
if ($user->authorise('core.edit', $asset))
{
return true;
}
// Now check if edit.own is available.
if (empty($userId) || $user->authorise('core.edit.own', $asset))
{
return false;
}
// Check for a valid user and that they are the owner.
if ($userId != $article->created_by)
{
return false;
}
return true;
}
public function getArticleUrl()
{
$article = Article::get();
if (isset($article->url))
{
return $article->url;
}
if ( ! isset($article->id))
{
return false;
}
if ( ! class_exists('ContentHelperRoute'))
{
require_once JPATH_SITE . '/components/com_content/helpers/route.php';
}
$article->url = ContentHelperRoute::getArticleRoute($article->id, $article->catid, $article->language);
if (empty($article->has_access))
{
$article->url = $this->getRestrictedUrl($article->url);
}
return $article->url;
}
public function getRestrictedUrl($url)
{
$menu = JFactory::getApplication()->getMenu();
$active = $menu->getActive();
$itemId = $active->id;
$link = new JUri(JRoute::_('index.php?option=com_users&view=login&Itemid=' . $itemId, false));
$link->setVar('return', base64_encode(JRoute::_($url, false)));
return (string) $link;
}
public function getArticleEditUrl()
{
$article = Article::get();
if (isset($article->editurl))
{
return $article->editurl;
}
if ( ! isset($article->id))
{
return false;
}
$article->editurl = '';
if ( ! $this->canEdit())
{
return '';
}
$uri = JUri::getInstance();
$article->editurl = JRoute::_('index.php?option=com_content&task=article.edit&a_id=' . $article->id . '&return=' . base64_encode($uri));
return $article->editurl;
}
public function getLayoutFile($tag)
{
jimport('joomla.filesystem.path');
jimport('joomla.filesystem.file');
$template_layout = (isset($tag->template) ? $tag->template . ':' : '')
. (isset($tag->layout) ? $tag->layout . ':' : '');
list($template, $layout) = $this->getTemplateAndLayout($template_layout);
// Load the language file for the template
$lang = JFactory::getLanguage();
$lang->load('tpl_' . $template, JPATH_BASE, null, false, false)
|| $lang->load('tpl_' . $template, JPATH_THEMES . '/' . $template, null, false, false)
|| $lang->load('tpl_' . $template, JPATH_BASE, $lang->getDefault(), false, false)
|| $lang->load('tpl_' . $template, JPATH_THEMES . '/' . $template, $lang->getDefault(), false, false);
$paths = [
JPATH_THEMES . '/' . $template . '/html/com_content/article',
JPATH_SITE . '/components/com_content/views/article/tmpl',
];
$file = JPath::find($paths, $layout . '.php');
// Check if layout exists
if (JFile::exists($file))
{
return $file;
}
// Return default layout
return JPath::find($paths, 'default.php');
}
public function getTemplateAndLayout($data)
{
$article = Article::get();
if ( ! isset($data->template) && isset($data->layout) && strpos($data->layout, ':') !== false)
{
list($data->template, $data->layout) = explode(':', $data->layout);
}
$layout = ! empty($data->layout) ? $data->layout : (! empty($article->article_layout) ? $article->article_layout : 'default');
$template = ! empty($data->template) ? $data->template : JFactory::getApplication()->getTemplate();
if (strpos($layout, ':') !== false)
{
list($template, $layout) = explode(':', $layout);
}
jimport('joomla.filesystem.folder');
// Layout is a template, so return default layout
if (empty($data->template) && JFolder::exists(JPATH_THEMES . '/' . $layout))
{
return [$layout, 'default'];
}
// Value is not a template, so a layout
return [$template, $layout];
}
}