<?php
namespace MailPoet\Newsletter\Editor;
if (!defined('ABSPATH')) exit;
use MailPoet\Util\pQuery\pQuery;
use MailPoet\WooCommerce\Helper as WooCommerceHelper;
use MailPoet\WP\Functions as WPFunctions;
class PostContentManager {
const WP_POST_CLASS = 'mailpoet_wp_post';
public $maxExcerptLength = 60;
/** @var WooCommerceHelper */
private $woocommerceHelper;
/** @var WPFunctions */
private $wp;
public function __construct(
WooCommerceHelper $woocommerceHelper = null
) {
$this->wp = new WPFunctions;
$this->maxExcerptLength = $this->wp->applyFilters('mailpoet_newsletter_post_excerpt_length', $this->maxExcerptLength);
$this->woocommerceHelper = $woocommerceHelper ?: new WooCommerceHelper();
}
public function getContent($post, $displayType) {
if ($displayType === 'titleOnly') {
return '';
}
if ($this->woocommerceHelper->isWooCommerceActive() && $this->wp->getPostType($post) === 'product') {
$product = $this->woocommerceHelper->wcGetProduct($post->ID);
if ($product) {
return $this->getContentForProduct($product, $displayType);
}
}
if ($displayType === 'excerpt') {
if ($this->wp->hasExcerpt($post)) {
return self::stripShortCodes($this->wp->getTheExcerpt($post));
}
return $this->generateExcerpt($post->post_content); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
}
return self::stripShortCodes($post->post_content); // phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
}
public function filterContent($content, $displayType, $withPostClass = true) {
$content = self::convertEmbeddedContent($content);
// convert h4 h5 h6 to h3
$content = preg_replace('/<([\/])?h[456](.*?)>/', '<$1h3$2>', $content);
// convert currency signs
$content = str_replace(
['$', '€', '£', '¥'],
['$', '€', '£', '¥'],
$content
);
// strip useless tags
$tagsNotBeingStripped = [
'<p>', '<em>', '<span>', '<b>', '<strong>', '<i>',
'<a>', '<ul>', '<ol>', '<li>', '<br>', '<blockquote>',
];
if ($displayType === 'full') {
$tagsNotBeingStripped = array_merge($tagsNotBeingStripped, ['<figure>', '<img>', '<h1>', '<h2>', '<h3>']);
}
if (is_array($content)) {
$content = implode(' ', $content);
}
$content = strip_tags($content, implode('', $tagsNotBeingStripped));
if ($withPostClass) {
$dOMParser = new pQuery();
$DOM = $dOMParser->parseStr(WPFunctions::get()->wpautop($content));
$paragraphs = $DOM->query('p');
foreach ($paragraphs as $paragraph) {
// We replace the class attribute to avoid conflicts in the newsletter editor
$paragraph->removeAttr('class');
$paragraph->addClass(self::WP_POST_CLASS);
}
$content = $DOM->__toString();
} else {
$content = WPFunctions::get()->wpautop($content);
}
$content = trim($content);
return $content;
}
private function getContentForProduct($product, $displayType) {
if ($displayType === 'excerpt') {
return $product->get_short_description();
}
return $product->get_description();
}
private function generateExcerpt($content) {
// remove image captions in gutenberg
$content = preg_replace(
"/<figcaption.*?>.*?<\/figcaption>/",
'',
$content
);
// remove image captions in classic posts
$content = preg_replace(
"/\[caption.*?\](.*?)\[\/caption\]/",
'',
$content
);
$content = self::stripShortCodes($content);
// if excerpt is empty then try to find the "more" tag
$excerpts = explode('<!--more-->', $content);
if (count($excerpts) > 1) {
// <!--more--> separator was present
return $excerpts[0];
} else {
// Separator not present, try to shorten long posts
return WPFunctions::get()->wpTrimWords($content, $this->maxExcerptLength, ' …');
}
}
private function stripShortCodes($content) {
// remove captions
$content = preg_replace(
"/\[caption.*?\](.*<\/a>)(.*?)\[\/caption\]/",
'$1',
$content
);
// remove other shortcodes
$content = preg_replace('/\[[^\[\]]*\]/', '', $content);
return $content;
}
private function convertEmbeddedContent($content = '') {
// remove embedded video and replace with links
$content = preg_replace(
'#<iframe.*?src=\"(.+?)\".*><\/iframe>#',
'<a href="$1">' . __('Click here to view media.', 'mailpoet') . '</a>',
$content
);
// replace youtube links
$content = preg_replace(
'#http://www.youtube.com/embed/([a-zA-Z0-9_-]*)#Ui',
'http://www.youtube.com/watch?v=$1',
$content
);
return $content;
}
}