111 lines
2.3 KiB
PHP
111 lines
2.3 KiB
PHP
<?php
|
|
namespace WP_Rocket\Buffer;
|
|
|
|
/**
|
|
* Handle page optimizations.
|
|
*
|
|
* @since 3.3
|
|
* @author Grégory Viguier
|
|
*/
|
|
class Optimization extends Abstract_Buffer {
|
|
|
|
/**
|
|
* Process identifier used by the logger.
|
|
*
|
|
* @var string
|
|
* @since 3.3
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*/
|
|
protected $process_id = 'optimization process';
|
|
|
|
/**
|
|
* Tests instance
|
|
*
|
|
* @var Tests
|
|
*/
|
|
protected $tests;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @since 3.3
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param Tests $tests Tests instance.
|
|
*/
|
|
public function __construct( Tests $tests ) {
|
|
parent::__construct( $tests );
|
|
|
|
$this->log( 'OPTIMIZATION PROCESS STARTED.', [], 'info' );
|
|
}
|
|
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
/** CACHE =================================================================================== */
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Do preliminary tests and maybe launch the buffer process.
|
|
*
|
|
* @since 3.3
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*/
|
|
public function maybe_init_process() {
|
|
if ( ! $this->tests->can_init_process() ) {
|
|
$this->log_last_test_error();
|
|
return;
|
|
}
|
|
|
|
ob_start( [ $this, 'maybe_process_buffer' ] );
|
|
}
|
|
|
|
/**
|
|
* Maybe optimize the page content.
|
|
*
|
|
* @since 3.3
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $buffer The buffer content.
|
|
* @return string The buffered content.
|
|
*/
|
|
public function maybe_process_buffer( $buffer ) {
|
|
/**
|
|
* Triggered before WP Rocket starts the optimization process.
|
|
*
|
|
* @since 3.4.2
|
|
* @author Soponar Cristina
|
|
*
|
|
* @param string $buffer HTML content.
|
|
*/
|
|
do_action( 'rocket_before_maybe_process_buffer', $buffer );
|
|
|
|
if ( ! $this->is_html( $buffer ) ) {
|
|
return $buffer;
|
|
}
|
|
|
|
if ( ! $this->tests->can_process_buffer( $buffer ) ) {
|
|
$this->log_last_test_error();
|
|
return $buffer;
|
|
}
|
|
|
|
/**
|
|
* This hook is used for:
|
|
* - Async CSS files
|
|
* - Defer JavaScript files
|
|
* - Minify/Combine HTML/CSS/JavaScript
|
|
* - CDN
|
|
* - LazyLoad
|
|
*
|
|
* @param string $buffer The page content.
|
|
*/
|
|
$buffer = (string) apply_filters( 'rocket_buffer', $buffer );
|
|
|
|
$this->log( 'Page optimized.', [], 'info' );
|
|
|
|
return $buffer;
|
|
}
|
|
}
|