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<?php
namespace WP_Rocket\Buffer;
use WP_Rocket\Logger\Logger;
/**
* Handle page cache and optimizations.
*
* @since 3.3
* @author Grégory Viguier
*/
abstract class Abstract_Buffer {
/**
* Process identifier used by the logger.
*
* @var string
* @since 3.3
* @access protected
* @author Grégory Viguier
*/
protected $process_id;
/**
* Instance of the Tests class.
*
* @var Tests
* @since 3.3
* @access protected
* @author Grégory Viguier
*/
protected $tests;
/**
* Constructor.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @param Tests $tests Tests instance.
*/
public function __construct( Tests $tests ) {
$this->tests = $tests;
}
/** ----------------------------------------------------------------------------------------- */
/** PROCESS ================================================================================= */
/** ----------------------------------------------------------------------------------------- */
/**
* Launch the process if the tests succeed.
* This should be the first thing to use after initializing the class.
*
* @since 3.3
* @access public
* @see $this->tests->can_init_process()
* @author Grégory Viguier
*/
abstract public function maybe_init_process();
/**
* Process the page buffer if the 2nd set of tests succeed.
* It should be used like this:
* ob_start( [ $this, 'maybe_process_buffer' ] );
*
* @since 3.3
* @access public
* @see $this->tests->can_process_buffer()
* @author Grégory Viguier
*
* @param string $buffer The buffer content.
* @return string The buffered content
*/
abstract public function maybe_process_buffer( $buffer );
/** ----------------------------------------------------------------------------------------- */
/** LOG ===================================================================================== */
/** ----------------------------------------------------------------------------------------- */
/**
* Log the last test "error".
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*/
protected function log_last_test_error() {
$error = $this->tests->get_last_error();
$this->log( $error['message'], $error['data'] );
}
/**
* Log events.
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*
* @param string $message A message to log.
* @param array $data Related data.
* @param string $type Event type to log. Possible values are 'info', 'error', and 'debug' (default).
*/
protected function log( $message, $data = [], $type = 'debug' ) {
$data = array_merge(
[
$this->get_process_id(),
'request_uri' => $this->tests->get_raw_request_uri(),
],
$data
);
if ( isset( $data['cookies'] ) ) {
$data['cookies'] = Logger::remove_auth_cookies( $data['cookies'] );
}
switch ( $type ) {
case 'info':
Logger::info( $message, $data );
break;
case 'error':
Logger::error( $message, $data );
break;
default:
Logger::debug( $message, $data );
}
}
/**
* Get the process identifier.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @return string
*/
public function get_process_id() {
return $this->process_id . ' - Thread #' . Logger::get_thread_id();
}
/** ----------------------------------------------------------------------------------------- */
/** VARIOUS TOOLS =========================================================================== */
/** ----------------------------------------------------------------------------------------- */
/**
* Tell if the page content is HTML.
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*
* @param string $buffer The buffer content.
* @return bool
*/
protected function is_html( $buffer ) {
return preg_match( '/<\/html>/i', $buffer );
}
}