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<?php |
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|
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namespace BetterLinks\Frontend; |
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if ( ! defined( 'ABSPATH' ) ) { exit; } |
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|
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use BetterLinks\Admin\Cache; |
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use BetterLinks\Traits\Query; |
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|
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class LinkChecker { |
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use Query; |
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|
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private $link; |
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private $settings; |
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|
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|
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public function __construct() { |
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$this->settings = (object) Cache::get_json_settings(); |
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add_filter( 'the_content', array( $this, 'check_links' ), 100 ); |
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} |
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|
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public function check_links( $content) { |
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preg_match_all('/<a[^>]*\bclass\s*=\s*["\'][^"\']*\bbetterlinks-linked-text\b[^"\']*["\'][^>]*>(.*?)<\/a>/i', $content, $matches, PREG_OFFSET_CAPTURE); |
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|
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$next = 0; |
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foreach ($matches[0] as $match) { |
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$linkId = $this->get_string_text( $match[0], 'data-link-id' ); |
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if( empty( $linkId ) ) { |
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continue; |
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} |
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|
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$link = self::get_link_by_ID(intval($linkId)); |
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$this->link = is_array( $link ) ? current( $link ) : false; |
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if( empty( $this->link ) ) continue; |
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|
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$href = $this->get_string_text( $match[0], 'href' ); |
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if( empty( $href ) ) { |
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continue; |
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} |
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$href = $this->check_hrefs($href); |
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|
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$pattern = '/(<a\s+[^>]*href\s*=\s*["\'])([^"\']*)(["\'][^>]*>)/i'; |
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$replacement = '${1}' . $href . '${3}'; |
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$replace = preg_replace($pattern, $replacement, $match[0]); |
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|
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// if( empty( $this->link['uncloaked'] ) ){ |
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// $pattern = '/\s*data-link-id=["\'][^"\']*["\']/i'; |
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// $replace = preg_replace($pattern, '', $replace); |
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// } |
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// error_log( print_r( $this->link, true ) ); |
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|
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$match[1] = $match[1] + $next; |
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$content = substr_replace( $content , $replace , $match[1] , strlen( $match[0] ) ); |
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|
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$next = $next + strlen( $replace ) - strlen( $match[0] ); |
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} |
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return $content; |
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} |
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|
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private function get_string_text($string, $attr){ |
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preg_match('/'. $attr .'="([^"]+)"/', $string, $matches); |
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if( empty( $matches ) ) return ''; |
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$value = explode('=', $matches[0]); |
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if( empty( $value[1] ) ) return ''; |
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$value = trim($value[1], '"'); |
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return $value; |
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} |
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|
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private function check_hrefs($href) { |
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// error_log( print_r( $this->link, true ) ); |
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if( !empty( $this->link['uncloaked'] ) ){ |
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if( $href !== $this->link['target_url'] ){ |
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$href = $this->link['target_url']; |
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} |
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}else { |
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$short_url = site_url('/'); |
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// error_log( print_r( $this->link['short_url'], true ) ); |
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// $short_url .= !empty( $this->settings->prefix ) ? $this->settings->prefix . '/' . $this->link['short_url'] : $this->link['short_url']; |
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$short_url .= $this->link['short_url']; |
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if( $href !== $short_url) { |
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$href = $short_url; |
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} |
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} |
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return $href; |
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} |
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|
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} |
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