WPCapture.php

<?php

namespace WPDesk\Logger\WP;

class WPCapture {
    /** @var string */
	private $filename;

    const LOG_DIR = 'wpdesk-logs';

	public function __construct($filename) {
		$this->filename = $filename;
	}

	/**
	 * Add notice for directory.
	 *
	 * @param string $dir Directory.
	 */
	private function add_notice_for_dir( $dir ) {
		new \WPDesk\Notice\Notice(
			sprintf(
			// Translators: directory.
				__(
					'Can not enable WP Desk Debug log! Cannot create directory %s or this directory is not writeable!',
					'wp-logs'
				),
				$dir
			),
			\WPDesk\Notice\Notice::NOTICE_TYPE_ERROR
		);
	}

	/**
	 * Add notice for file.
	 *
	 * @param string $file File..
	 */
	private function add_notice_for_file( $file ) {
		new \WPDesk\Notice\Notice(
			sprintf(
			// Translators: directory.
				__(
					'Can not enable WP Desk Debug log! Cannot create file %s!',
					'wp-logs'
				),
				$file
			),
			\WPDesk\Notice\Notice::NOTICE_TYPE_ERROR
		);
	}

	/**
	 * Is debug log writable.
	 *
	 * @return bool
	 */
	private function is_debug_log_writable_or_show_notice() {
		$log_dir    = $this->get_log_dir();
		$log_file   = $this->get_log_file();
		$index_file = $this->get_index_file();
		if ( ! file_exists( $log_dir ) ) {
			if ( ! mkdir( $log_dir, 0777, true ) ) {
				$this->add_notice_for_dir( $log_dir );

				return false;
			}
		}
		if ( ! file_exists( $index_file ) ) {
			$index_html = fopen( $index_file, 'w' );
			if ( false === $index_html ) {
				$this->add_notice_for_file( $index_file );

				return false;
			} else {
				fclose( $index_html );
			}
		}
		if ( ! file_exists( $log_file ) ) {
			$log = fopen( $log_file, 'w' );
			if ( false === $log ) {
				$this->add_notice_for_file( $log_file );

				return false;
			} else {
				fclose( $log );
			}
		}

        if (!is_writable($log_file)) {
            $this->add_notice_for_file($log_file);
            return false;
        }
        return true;
	}

	/**
	 * Init debug log file.
	 */
	public function init_debug_log_file() {
		if ( $this->is_debug_log_writable_or_show_notice() ) {
			ini_set( 'log_errors', 1 );
			ini_set( 'error_log', $this->get_log_file() );
		}
	}

	/**
	 * Get uploads dir.
	 *
	 * @return string
	 */
	private function get_uploads_dir() {
		$upload_dir = wp_upload_dir();

		return untrailingslashit( $upload_dir['basedir'] );
	}

	/**
	 * Get log dir.
	 *
	 * @return string
	 */
	private function get_log_dir() {
		return trailingslashit( $this->get_uploads_dir() ) . self::LOG_DIR;
	}

	/**
	 * Get log file.
	 *
	 * @return string
	 */
	public function get_log_file() {
		return trailingslashit( $this->get_log_dir() ) . $this->filename;
	}

	/**
	 * Get log file.
	 *
	 * @return string
	 */
	private function get_index_file() {
		return trailingslashit( $this->get_log_dir() ) . 'index.html';
	}
}