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<?php |
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/** |
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* The log rotation class. |
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* |
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* @package WP_Defender\Component\Logger |
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*/ |
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|
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namespace WP_Defender\Component\Logger; |
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|
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use WP_Defender\Traits\IO; |
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|
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/** |
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* Deals rotation log file naming & purging old logs. |
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*/ |
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class Rotation_Logger implements Rotation_Logger_Interface { |
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use IO; |
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|
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public const ROTATION_FREQUENCY = 7; |
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public const ROTATION_UNIT = 'day'; |
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|
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/** |
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* Class constructor to clear file status cache. |
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*/ |
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public function __construct() { |
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clearstatcache(); |
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} |
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|
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/** |
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* Generate a new filename with date suffix. |
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* |
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* @param string $filename Filename which requires date suffix. |
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* |
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* @return string Formatted date suffixed file name. |
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*/ |
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public function generate_file_name( $filename ) { |
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$file_parts = pathinfo( $filename ); |
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|
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$file_name = $file_parts['filename'] . gmdate( '-Y-m-d' ); |
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|
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if ( ! empty( $file_parts['extension'] ) ) { |
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$file_name .= '.' . $file_parts['extension']; |
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} |
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|
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return $file_name; |
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} |
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|
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/** |
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* Purge logs whose modified time exceeded the threshold limit. |
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* |
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* @param string $directory_path Pathname of the directory. |
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* @param int $count A period as integer value. |
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* @param string $unit A standard datetime relative format unit, like days or months. |
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*/ |
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public function purge_old_log( |
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$directory_path = '', |
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$count = self::ROTATION_FREQUENCY, |
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$unit = self::ROTATION_UNIT |
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) { |
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$threshold_timestamp = strtotime( '-' . $count . $unit ); |
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$directory_path = $directory_path ?: $this->get_tmp_path(); |
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$iterator = new \GlobIterator( $directory_path . '/*.log' ); |
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|
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while ( $iterator->valid() ) { |
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|
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if ( $iterator->getMTime() < $threshold_timestamp ) { |
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wp_delete_file( $iterator->getPathname() ); |
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} |
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|
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$iterator->next(); |
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} |
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} |
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|
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/** |
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* Invoke all init methods. |
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*/ |
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public function init() { |
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/** |
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* Delete old logs rotationally. |
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*/ |
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if ( ! wp_next_scheduled( 'wpdef_log_rotational_delete' ) ) { |
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wp_schedule_event( time(), 'daily', 'wpdef_log_rotational_delete' ); |
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} |
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add_action( 'wpdef_log_rotational_delete', array( &$this, 'purge_old_log' ) ); |
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} |
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} |
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