processor = $processor; $this->context = $context; } /** * Applies optimization. * * @param string $html HTML content. * @param object $row Database Row. * * @return string */ public function optimize( string $html, $row ): string { if ( rocket_bypass() && $row->has_lrc() ) { return $this->remove_hashes( $html ); } if ( ! $row->has_lrc() ) { return $this->remove_hashes( $html ); } $hashes = json_decode( $row->below_the_fold ); if ( ! is_array( $hashes ) ) { return $this->remove_hashes( $html ); } $result = preg_replace( '/data-rocket-location-hash="(?:' . implode( '|', $hashes ) . ')"/i', 'data-wpr-lazyrender="1"', $html, -1, $count ); if ( null === $result || 0 === $count ) { return $this->remove_hashes( $html ); } $html = $result; $html = $this->remove_hashes( $html ); $html = $this->add_css( $html ); return $this->add_meta_comment( 'automatic_lazy_rendering', $html ); } /** * Remove hashes from the HTML content. * * @param string $html The HTML content. * * @return string */ private function remove_hashes( $html ) { $result = preg_replace( '/data-rocket-location-hash="[^"]*"/i', '', $html ); if ( null === $result ) { return $html; } return $result; } /** * Add CSS to the HTML content. * * @param string $html The HTML content. * * @return string */ private function add_css( $html ) { $css = ''; $result = preg_replace( '/<\/head>/i', $css . '', $html, 1 ); if ( null === $result ) { return $html; } return $result; } /** * Add hashes to the HTML elements if allowed * * @param string $html The HTML content. * * @return string */ public function add_hashes_when_allowed( $html ) { if ( ! $this->context->is_allowed() ) { return $html; } return $this->add_hashes( $html ); } /** * Add hashes to the HTML elements * * @param string $html The HTML content. * * @return string */ public function add_hashes( $html ) { if ( empty( $html ) ) { return $html; } /** * Filters the Lazy Render Content processor to use. * * @since 3.17 * * @param string $processor The processor to use. */ $processor = wpm_apply_filters_typed( 'string', 'rocket_lrc_processor', extension_loaded( 'dom' ) ? 'dom' : 'regex' ); $this->processor->set_processor( $processor ); $this->processor->get_processor()->set_exclusions( $this->get_exclusions() ); return $this->processor->get_processor()->add_hashes( $html ); } /** * Get the list of patterns to exclude from hash injection. * * @return string[] */ private function get_exclusions(): array { /** * Filters the list of patterns to exclude from hash injection. * * @since 3.17.0.2 * * @param string[] $exclusions The list of patterns to exclude from hash injection. */ $exclusions = wpm_apply_filters_typed( 'string[]', 'rocket_lrc_exclusions', [] ); return $exclusions; } /** * Add custom data like the List of elements to be considered for optimization. * * @param array $data Array of data passed in beacon. * * @return array */ public function add_custom_data( array $data ): array { $data['status']['lrc'] = $this->context->is_allowed(); /** * Filters the LRC threshold * * @since 3.17 * * @param int $threshold The LRC threshold value. */ $data['lrc_threshold'] = wpm_apply_filters_typed( 'integer', 'rocket_lrc_threshold', 1800 ); return $data; } }