*/ namespace Adshares\WordPress; class Plugin { const P_OPEN_TAG = '

'; const P_CLOSE_TAG = '

'; const ADSH_PARAGRAPH_MARKER = '###ADSH_PARAGRAPH_OPEN###'; private static $instance = null; private $initiated = false; private $blockquotes; /** * Create singleton. * * @return Plugin */ private static function getInstance() { if (self::$instance === null) { self::$instance = new self(); } return self::$instance; } /** * Handle initiating event. */ public static function handleInit() { $admin = self::getInstance(); $admin->initHooks(); } /** * Activate page hook. */ public static function activate() { $settings = get_option('adshares_settings'); if (!$settings) { $settings = []; } $settings = array_merge([ 'postTypes' => ['post', 'page'], 'visibility' => [ 'homepage' => '1', 'categories' => '1', 'archives' => '1', 'tags' => '1', ] ], $settings); // $quads_options['quicktags']['QckTags'] = '1'; update_option('adshares_settings', $settings); } /** * Handle plugin activation. */ public static function handleActivation() { if (version_compare($GLOBALS['wp_version'], ADSHARES_MINIMUM_WP_VERSION, '<')) { load_plugin_textdomain('adshares'); throw new \RuntimeException(sprintf( __('Adshares %s requires WordPress %s or higher.', 'adshares'), ADSHARES_VERSION, ADSHARES_MINIMUM_WP_VERSION )); } // check if WordPress Multisite is enabled if (function_exists('is_multisite') && is_multisite()) { global $wpdb; $currentBlogId = $wpdb->blogid; // Get all blog ids $blogIds = $wpdb->get_col("SELECT blog_id FROM $wpdb->blogs"); foreach ($blogIds as $blogId) { switch_to_blog($blogId); self::activate(); } switch_to_blog($currentBlogId); return; } self::activate(); } /** * Handle plugin deactivation. */ public static function handleDeactivation() { // not implemented } /** * Init hooks. */ public function initHooks() { if ($this->initiated) { return; } $this->initiated = true; add_action('wp_head', [$this, 'loadAdsScript']); add_filter('the_content', [$this, 'filterContent'], 20); add_filter('get_the_excerpt', [$this, 'filterExcerpt'], 20); } /** * Loading resources hook. */ public function loadAdsScript() { $sites = get_option('adshares_sites'); if (isset($sites[0]['code'])) { echo $sites[0]['code']; } } /** * Filter post content. * * @param $content post content * @return string */ public function filterContent($content) { if (!$this->isAdAllowed($content) || !is_main_query()) { $content = $this->cleanContent($content); return $content; } $content = $this->sanitizeContent($content); $content = $this->insertAds($content); $content = $this->cleanContent($content); return do_shortcode($content); } /** * Filter post excerpt. * * @param $content post excerpt * @return string */ public function filterExcerpt($excerpt) { if ($this->isAdAllowed($excerpt) && is_main_query() && $postExcerpt = $this->getPositionAd('post_excerpt', $excerpt)) { $excerpt .= $postExcerpt; } return $excerpt; } /** * Checks if ads turned on. * * @param $content post content * @return bool */ private function isAdAllowed($content) { $settings = get_option('adshares_settings'); // Never show ads in ajax calls if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') { return false; } if (is_feed() || is_search() || is_404() || strpos($content, '') !== false || strpos($content, '') !== false || is_front_page() && !isset($settings['visibility']['homepage']) || is_category() && !isset($settings['visibility']['categories']) || is_archive() && !isset($settings['visibility']['archives']) || is_tag() && !isset($settings['visibility']['tags']) || is_user_logged_in() && isset($settings['exceptions']['logged_user']) ) { return false; } return true; } /** * Remove process tags. * * @param $content post content * @return string */ private function cleanContent($content) { $tags = [ 'no_ads', 'off_ads', 'off_post_beginning', 'off_post_middle', 'off_post_end', 'off_paragraph_first', 'off_paragraph_second', 'off_paragraph_third', 'off_paragraph_last', ]; foreach ($tags as $tag) { if (strpos($content, '') !== false) { $content = str_replace(['

', ''], '', $content); } } $content = str_replace("##ADS-TP1##", "

", $content); $content = str_replace("##ADS-TP2##", "

", $content); return $content; } /** * Sanitize post content. * * @param $content post content * @return string */ private function sanitizeContent($content) { // Replace all

tags with placeholder ##QA-TP1## $content = str_replace('

', '##ADS-TP1##', $content); // Replace all

tags with placeholder ##QA-TP2## $content = str_replace('

', '##ADS-TP2##', $content); // Unify paragraph closing tag $content = str_replace('

', self::P_OPEN_TAG, $content); $content = str_replace('

', self::P_CLOSE_TAG, $content); return $content; } /** * Get position ad code. * * @param $id position id * @param $content post content * @return string */ private function getPositionAd($id, $content) { if (strpos($content, sprintf('', $id)) !== false) { return null; } $settings = get_option('adshares_settings'); if (empty($settings['positions'][$id])) { return null; } $sites = get_option('adshares_sites'); $ad = null; foreach ($sites as $site) { foreach ($site['adUnits'] as $unit) { if ($unit['uuid'] == $settings['positions'][$id]) { $ad = $unit; break 2; } } } return $ad !== null ? '

' . $ad['code'] . '

' : null; } /** * Insert ads into post content. * * @param $content string Original post content * @return string Modified content */ private function insertAds($content) { $postBeginning = $this->getPositionAd('post_beginning', $content); $postMiddle = $this->getPositionAd('post_middle', $content); $postEnd = $this->getPositionAd('post_end', $content); $paragraphFirst = $this->getPositionAd('paragraph_first', $content); $paragraphSecond = $this->getPositionAd('paragraph_second', $content); $paragraphThird = $this->getPositionAd('paragraph_third', $content); $paragraphLast = $this->getPositionAd('paragraph_last', $content); $content = $this->preserveBlockQuotes($content); $paragraphs = $this->extractParagraphs($content); $count = count($paragraphs); $idxMiddle = $postMiddle ? (int)floor($count / 2) - 1 : false; $idxEnd = $count - 1; $idxLast = $paragraphLast ? $idxEnd - 1 : false; $idxFirst = $paragraphFirst ? 0 : false; $idxSecond = $paragraphSecond ? 1 : false; $idxThird = $paragraphThird ? 2 : false; $newParagraphs = []; foreach ($paragraphs as $index => $paragraph) { if (strpos($paragraph, self::P_CLOSE_TAG) === false) { $paragraph .= self::P_CLOSE_TAG; } $newParagraphs[] = $paragraph; if ($index === $idxEnd) { $newParagraphs[] = $postEnd; } elseif ($index === $idxMiddle) { $newParagraphs[] = $postMiddle; } elseif ($index === $idxLast) { $newParagraphs[] = $paragraphLast; } elseif ($index === $idxFirst) { $newParagraphs[] = $paragraphFirst; } elseif ($index === $idxSecond) { $newParagraphs[] = $paragraphSecond; } elseif ($index === $idxThird) { $newParagraphs[] = $paragraphThird; } } $content = $postBeginning . implode($newParagraphs); return $this->restoreBlockQuotes($content); } private function preserveBlockQuotes($content) { preg_match_all("//si", $content, $blockquotes); $this->blockquotes = []; if (!empty($blockquotes)) { foreach ($blockquotes[0] as $bId => $blockquote) { $this->blockquotes[$bId] = trim($blockquote); $content = str_replace($this->blockquotes[$bId], "#ADSBLOCKQUOTE#$bId#", $content); } } return $content; } private function restoreBlockQuotes($content) { foreach ($this->blockquotes as $bId => $blockquote) { $content = str_replace("#ADSBLOCKQUOTE#$bId#", $blockquote, $content); } return $content; } private function extractParagraphs($content) { $markedContent = str_ireplace(self::P_OPEN_TAG, self::ADSH_PARAGRAPH_MARKER . self::P_OPEN_TAG, $content); return array_values(array_filter(explode(self::ADSH_PARAGRAPH_MARKER, $markedContent), 'trim')); } }