mainwp-child/class/class-mainwp-utility.php

<?php

namespace MainWP\Child;

// phpcs:disable WordPress.WP.AlternativeFunctions -- to custom.

class MainWP_Utility {

	public static $instance = null;

	/**
	 * Method get_class_name()
	 *
	 * Get Class Name.
	 *
	 * @return object
	 */
	public static function get_class_name() {
		return __CLASS__;
	}

	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}


	public function run_saved_snippets() {

		if ( isset( $_POST['action'] ) && isset( $_POST['mainwpsignature'] ) ) {
			$action = $_POST['action'];
			if ( 'run_snippet' === $action || 'save_snippet' === $action || 'delete_snippet' === $action ) {
				return;  // do not run saved snippets if in do action snippet.
			}
		}

		if ( get_option( 'mainwp_ext_snippets_enabled' ) ) {
			$snippets = get_option( 'mainwp_ext_code_snippets' );
			if ( is_array( $snippets ) && count( $snippets ) > 0 ) {
				foreach ( $snippets as $code ) {
					self::execute_snippet( $code );
				}
			}
		}
	}

	/**
	 * Method execute_snippet()
	 *
	 * Execute snippet code
	 *
	 * @param string $code The code  *
	 *
	 * @return array result
	 */
	public static function execute_snippet( $code ) {
		ob_start();
		$result = eval( $code ); // phpcs:ignore Squiz.PHP.Eval -- eval() used safely.
		$output = ob_get_contents();
		ob_end_clean();
		$return = array();
		$error  = error_get_last();
		if ( ( false === $result ) && $error ) {
			$return['status'] = 'FAIL';
			$return['result'] = $error['message'];
		} else {
			$return['status'] = 'SUCCESS';
			$return['result'] = $output;
		}
		return $return;
	}

	public static function fix_for_custom_themes() {
		if ( file_exists( ABSPATH . '/wp-admin/includes/screen.php' ) ) {
			include_once ABSPATH . '/wp-admin/includes/screen.php';
		}
		if ( function_exists( 'et_register_updates_component' ) ) {
			et_register_updates_component();
		}
	}

	/**
	 *
	 * To support maintenance alert
	 */
	public function maintenance_alert() {
		if ( ! is_404() ) {
			return;
		}

		if ( 1 !== (int) get_option( 'mainwp_maintenance_opt_alert_404' ) ) {
			return;
		}

		$email = get_option( 'mainwp_maintenance_opt_alert_404_email' );

		if ( empty( $email ) || ! preg_match( '/^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$/is', $email ) ) {
			return;
		}

		// set status.
		header( 'HTTP/1.1 404 Not Found' );
		header( 'Status: 404 Not Found' );

		// site info.
		$blog       = get_bloginfo( 'name' );
		$site       = get_bloginfo( 'url' ) . '/';
		$from_email = get_bloginfo( 'admin_email' );

		// referrer.
		if ( isset( $_SERVER['HTTP_REFERER'] ) ) {
			$referer = self::clean( $_SERVER['HTTP_REFERER'] );
		} else {
			$referer = 'undefined';
		}
		$protocol = isset( $_SERVER['HTTPS'] ) && strcasecmp( $_SERVER['HTTPS'], 'off' ) ? 'https://' : 'http://';
		// request URI.
		if ( isset( $_SERVER['REQUEST_URI'] ) && isset( $_SERVER['HTTP_HOST'] ) ) {
			$request = self::clean( $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
		} else {
			$request = 'undefined';
		}
		// query string.
		if ( isset( $_SERVER['QUERY_STRING'] ) ) {
			$string = self::clean( $_SERVER['QUERY_STRING'] );
		} else {
			$string = 'undefined';
		}
		// IP address.
		if ( isset( $_SERVER['REMOTE_ADDR'] ) ) {
			$address = self::clean( $_SERVER['REMOTE_ADDR'] );
		} else {
			$address = 'undefined';
		}
		// user agent.
		if ( isset( $_SERVER['HTTP_USER_AGENT'] ) ) {
			$agent = self::clean( $_SERVER['HTTP_USER_AGENT'] );
		} else {
			$agent = 'undefined';
		}
		// identity.
		if ( isset( $_SERVER['REMOTE_IDENT'] ) ) {
			$remote = self::clean( $_SERVER['REMOTE_IDENT'] );
		} else {
			$remote = 'undefined';
		}
		// log time.
		$time = self::clean( date( 'F jS Y, h:ia', time() ) ); // phpcs:ignore -- local time.

		$mail = '<div>404 alert</div><div></div>' .
				'<div>TIME: ' . $time . '</div>' .
				'<div>*404: ' . $request . '</div>' .
				'<div>SITE: ' . $site . '</div>' .
				'<div>REFERRER: ' . $referer . '</div>' .
				'<div>QUERY STRING: ' . $string . '</div>' .
				'<div>REMOTE ADDRESS: ' . $address . '</div>' .
				'<div>REMOTE IDENTITY: ' . $remote . '</div>' .
				'<div>USER AGENT: ' . $agent . '</div>';
		wp_mail(
			$email,
			'MainWP - 404 Alert: ' . $blog,
			self::format_email( $email, $mail ),
			array(
				'content-type: text/html',
			)
		);
	}

	public static function clean( $string ) {
		$string = trim( $string );
		$string = htmlentities( $string, ENT_QUOTES );
		$string = str_replace( "\n", '<br>', $string );
		$string = stripslashes( $string );
		return $string;
	}

	public static function format_email( $to_email, $body ) {
		return '<br>
<div>
            <br>
            <div style="background:#ffffff;padding:0 1.618em;font:13px/20px Helvetica,Arial,Sans-serif;padding-bottom:50px!important">
                <div style="width:600px;background:#fff;margin-left:auto;margin-right:auto;margin-top:10px;margin-bottom:25px;padding:0!important;border:10px Solid #fff;border-radius:10px;overflow:hidden">
                    <div style="display: block; width: 100% ; background-image: url(https://mainwp.com/wp-content/uploads/2013/02/debut_light.png) ; background-repeat: repeat; border-bottom: 2px Solid #7fb100 ; overflow: hidden;">
                      <div style="display: block; width: 95% ; margin-left: auto ; margin-right: auto ; padding: .5em 0 ;">
                         <div style="float: left;"><a href="https://mainwp.com"><img src="https://mainwp.com/wp-content/uploads/2013/07/MainWP-Logo-1000-300x62.png" alt="MainWP" height="30"/></a></div>
                         <div style="float: right; margin-top: .6em ;">
                            <span style="display: inline-block; margin-right: .8em;"><a href="https://mainwp.com/mainwp-extensions/" style="font-family: Helvetica, Sans; color: #7fb100; text-transform: uppercase; font-size: 14px;">Extensions</a></span>
                            <span style="display: inline-block; margin-right: .8em;"><a style="font-family: Helvetica, Sans; color: #7fb100; text-transform: uppercase; font-size: 14px;" href="https://mainwp.com/forum">Support</a></span>
                            <span style="display: inline-block; margin-right: .8em;"><a style="font-family: Helvetica, Sans; color: #7fb100; text-transform: uppercase; font-size: 14px;" href="https://docs.mainwp.com">Documentation</a></span>
                            <span style="display: inline-block; margin-right: .5em;" class="mainwp-memebers-area"><a href="https://mainwp.com/member/login/index" style="padding: .6em .5em ; border-radius: 50px ; -moz-border-radius: 50px ; -webkit-border-radius: 50px ; background: #1c1d1b; border: 1px Solid #000; color: #fff !important; font-size: .9em !important; font-weight: normal ; -webkit-box-shadow:  0px 0px 0px 5px rgba(0, 0, 0, .1); box-shadow:  0px 0px 0px 5px rgba(0, 0, 0, .1);">Members Area</a></span>
                         </div><div style="clear: both;"></div>
                      </div>
                    </div>
                    <div>
                        <p>Hello MainWP User!<br></p>
                        ' . $body . '
                        <div></div>
                        <br />
                        <div>MainWP</div>
                        <div><a href="https://www.MainWP.com" target="_blank">www.MainWP.com</a></div>
                        <p></p>
                    </div>

                    <div style="display: block; width: 100% ; background: #1c1d1b;">
                      <div style="display: block; width: 95% ; margin-left: auto ; margin-right: auto ; padding: .5em 0 ;">
                        <div style="padding: .5em 0 ; float: left;"><p style="color: #fff; font-family: Helvetica, Sans; font-size: 12px ;">© 2013 MainWP. All Rights Reserved.</p></div>
                        <div style="float: right;"><a href="https://mainwp.com"><img src="https://mainwp.com/wp-content/uploads/2013/07/MainWP-Icon-300.png" height="45"/></a></div><div style="clear: both;"></div>
                      </div>
                   </div>
                </div>
                <center>
                    <br><br><br><br><br><br>
                    <table border="0" cellpadding="0" cellspacing="0" width="100%" style="background-color:#ffffff;border-top:1px solid #e5e5e5">
                        <tbody><tr>
                            <td align="center" valign="top" style="padding-top:20px;padding-bottom:20px">
                                <table border="0" cellpadding="0" cellspacing="0">
                                    <tbody><tr>
                                        <td align="center" valign="top" style="color:#606060;font-family:Helvetica,Arial,sans-serif;font-size:11px;line-height:150%;padding-right:20px;padding-bottom:5px;padding-left:20px;text-align:center">
                                            This email is sent from your MainWP Dashboard.
                                            <br>
                                            If you do not wish to receive these notices please re-check your preferences in the MainWP Settings page.
                                            <br>
                                            <br>
                                        </td>
                                    </tr>
                                </tbody></table>
                            </td>
                        </tr>
                    </tbody></table>

                </center>
            </div>
</div>
<br>';
	}


	/**
	 * Handle fatal error for requests from the dashboard
	 * mwp_action requests
	 * wordpress_seo requests
	 * This will do not handle fatal error for sync request from the dashboard
	 */
	public static function handle_fatal_error() {

		function handle_shutdown() {
			// handle fatal errors and compile errors.
			$error = error_get_last();
			if ( isset( $error['type'] ) && isset( $error['message'] ) && ( E_ERROR === $error['type'] || E_COMPILE_ERROR === $error['type'] ) ) {
				MainWP_Helper::write( array( 'error' => 'MainWP_Child fatal error : ' . $error['message'] . ' Line: ' . $error['line'] . ' File: ' . $error['file'] ) );
			}
		}

		if ( isset( $_POST['function'] ) && isset( $_POST['mainwpsignature'] ) && ( isset( $_POST['mwp_action'] ) || 'wordpress_seo' == $_POST['function'] ) ) {
			register_shutdown_function( 'handle_shutdown' );
		}
	}

	public function cron_active() {
		if ( ! defined( 'DOING_CRON' ) || ! DOING_CRON ) {
			return;
		}
		if ( empty( $_GET['mainwp_child_run'] ) || 'test' !== $_GET['mainwp_child_run'] ) {
			return;
		}
		session_write_close();
		header( 'Content-Type: text/html; charset=' . get_bloginfo( 'charset' ), true );
		header( 'X-Robots-Tag: noindex, nofollow', true );
		header( 'X-MainWP-Child-Version: ' . MainWP_Child::$version, true );
		nocache_headers();
		if ( 'test' == $_GET['mainwp_child_run'] ) {
			die( 'MainWP Test' );
		}
		die( '' );
	}


	/**
	 *
	 * To support upload backup files.
	 */
	public function upload_file( $file, $offset = 0 ) {
		$dirs      = MainWP_Helper::get_mainwp_dir( 'backup' );
		$backupdir = $dirs[0];

		header( 'Content-Description: File Transfer' );

		header( 'Content-Description: File Transfer' );
		if ( MainWP_Helper::ends_with( $file, '.tar.gz' ) ) {
			header( 'Content-Type: application/x-gzip' );
			header( 'Content-Encoding: gzip' );
		} else {
			header( 'Content-Type: application/octet-stream' );
		}
		header( 'Content-Disposition: attachment; filename="' . basename( $file ) . '"' );
		header( 'Expires: 0' );
		header( 'Cache-Control: must-revalidate' );
		header( 'Pragma: public' );
		header( 'Content-Length: ' . filesize( $backupdir . $file ) );
		while ( ob_end_flush() ) {; // phpcs:ignore
		}
		$this->readfile_chunked( $backupdir . $file, $offset );
	}

	public function readfile_chunked( $filename, $offset ) {
		$chunksize = 1024; // how many bytes per chunk?
		$handle    = fopen( $filename, 'rb' );
		if ( false === $handle ) {
			return false;
		}

		fseek( $handle, $offset );

		while ( ! feof( $handle ) ) {
			$buffer = fread( $handle, $chunksize );
			echo $buffer;
			ob_flush();
			flush();
			$buffer = null;
		}

		return fclose( $handle );
	}

	// $check_file_existed: to support checking if file existed.
	// $parent_id: optional.
	public static function upload_image( $img_url, $img_data = array(), $check_file_existed = false, $parent_id = 0 ) {
		if ( ! is_array( $img_data ) ) {
			$img_data = array();
		}

		/** @var $wp_filesystem WP_Filesystem_Base */
		global $wp_filesystem;
		MainWP_Helper::get_wp_filesystem();

		include_once ABSPATH . 'wp-admin/includes/file.php';
		$upload_dir = wp_upload_dir();
		add_filter( 'http_request_args', array( MainWP_Helper::get_class_name(), 'reject_unsafe_urls' ), 99, 2 );
		$temporary_file = download_url( $img_url );
		remove_filter( 'http_request_args', array( MainWP_Helper::get_class_name(), 'reject_unsafe_urls' ), 99, 2 );

		if ( is_wp_error( $temporary_file ) ) {
			throw new \Exception( 'Error: ' . $temporary_file->get_error_message() );
		} else {
			$filename       = basename( $img_url );
			$local_img_path = $upload_dir['path'] . DIRECTORY_SEPARATOR . $filename;
			$local_img_url  = $upload_dir['url'] . '/' . basename( $local_img_path );

			// to fix issue re-create new attachment.
			if ( $check_file_existed ) {
				$result = self::check_media_file_existed( $upload_dir, $filename, $temporary_file, $local_img_path, $local_img_url );
				if ( ! empty( $result ) ) {
					return $result;
				}
			}

			// file exists, do not overwrite, generate unique file name.
			// this may causing of issue incorrect source of image in post content.
			if ( $wp_filesystem->exists( $local_img_path ) ) {
				$local_img_path = dirname( $local_img_path ) . '/' . wp_unique_filename( dirname( $local_img_path ), basename( $local_img_path ) );
				$local_img_url  = $upload_dir['url'] . '/' . basename( $local_img_path );
			}

			$moved = $wp_filesystem->move( $temporary_file, $local_img_path );
			if ( $moved ) {
				return self::insert_attachment_media( $img_data, $img_url, $parent_id, $local_img_path, $local_img_url );
			}
		}

		if ( $wp_filesystem->exists( $temporary_file ) ) {
			$wp_filesystem->delete( $temporary_file );
		}
		return null;
	}

	private static function check_media_file_existed( $upload_dir, $filename, $temporary_file, &$local_img_path, $local_img_url ) {
		global $wp_filesystem;
		if ( $wp_filesystem->exists( $local_img_path ) ) {
			if ( filesize( $local_img_path ) == filesize( $temporary_file ) ) {
				$result = self::get_maybe_existed_attached_id( $local_img_url );
				if ( is_array( $result ) ) {
					$attach = current( $result );
					if ( is_object( $attach ) ) {
						if ( $wp_filesystem->exists( $temporary_file ) ) {
							$wp_filesystem->delete( $temporary_file );
						}
						return array(
							'id'  => $attach->ID,
							'url' => $local_img_url,
						);
					}
				}
			}
		} else {
			$result = self::get_maybe_existed_attached_id( $filename, false );
			if ( is_array( $result ) ) {
				$attach = current( $result );
				if ( is_object( $attach ) ) {
					$basedir        = $upload_dir['basedir'];
					$baseurl        = $upload_dir['baseurl'];
					$local_img_path = str_replace( $baseurl, $basedir, $attach->guid );
					if ( $wp_filesystem->exists( $local_img_path ) && ( $wp_filesystem->size( $local_img_path ) == $wp_filesystem->size( $temporary_file ) ) ) {
						if ( $wp_filesystem->exists( $temporary_file ) ) {
							$wp_filesystem->delete( $temporary_file );
						}
						return array(
							'id'  => $attach->ID,
							'url' => $attach->guid,
						);
					}
				}
			}
		}
	}

	private static function insert_attachment_media( $img_data, $img_url, $parent_id, $local_img_path, $local_img_url ) {

		$wp_filetype = wp_check_filetype( basename( $img_url ), null ); // Get the filetype to set the mimetype.
		$attachment  = array(
			'post_mime_type' => $wp_filetype['type'],
			'post_title'     => isset( $img_data['title'] ) && ! empty( $img_data['title'] ) ? $img_data['title'] : preg_replace( '/\.[^.]+$/', '', basename( $img_url ) ),
			'post_content'   => isset( $img_data['description'] ) && ! empty( $img_data['description'] ) ? $img_data['description'] : '',
			'post_excerpt'   => isset( $img_data['caption'] ) && ! empty( $img_data['caption'] ) ? $img_data['caption'] : '',
			'post_status'    => 'inherit',
			'guid'           => $local_img_url,
		);

		// for post attachments, thumbnail.
		if ( $parent_id ) {
			$attachment['post_parent'] = $parent_id;
		}

		$attach_id = wp_insert_attachment( $attachment, $local_img_path ); // Insert the image in the database.
		require_once ABSPATH . 'wp-admin/includes/image.php';
		$attach_data = wp_generate_attachment_metadata( $attach_id, $local_img_path );
		wp_update_attachment_metadata( $attach_id, $attach_data ); // Update generated metadata.
		if ( isset( $img_data['alt'] ) && ! empty( $img_data['alt'] ) ) {
			update_post_meta( $attach_id, '_wp_attachment_image_alt', $img_data['alt'] );
		}
		return array(
			'id'  => $attach_id,
			'url' => $local_img_url,
		);
	}

	public static function get_maybe_existed_attached_id( $filename, $full_guid = true ) {
		global $wpdb;
		if ( $full_guid ) {
			return $wpdb->get_results( $wpdb->prepare( "SELECT ID,guid FROM $wpdb->posts WHERE post_type = 'attachment' AND guid = %s", $filename ) );
		}
		return $wpdb->get_results( $wpdb->prepare( "SELECT ID,guid FROM $wpdb->posts WHERE post_type = 'attachment' AND guid LIKE %s", '%/' . $wpdb->esc_like( $filename ) ) );
	}

	public static function fetch_url( $url, $postdata ) {
		try {
			$tmpUrl = $url;
			if ( '/' !== substr( $tmpUrl, - 1 ) ) {
				$tmpUrl .= '/';
			}

			return self::m_fetch_url( $tmpUrl . 'wp-admin/', $postdata );
		} catch ( \Exception $e ) {
			try {
				return self::m_fetch_url( $url, $postdata );
			} catch ( \Exception $ex ) {
				throw $e;
			}
		}
	}

	public static function m_fetch_url( $url, $postdata ) {
		$agent = 'Mozilla/5.0 (compatible; MainWP-Child/' . MainWP_Child::$version . '; +http://mainwp.com)';

		if ( ! is_array( $postdata ) ) {
			$postdata = array();
		}

		$postdata['json_result'] = true; // forced all response in json format.

		// phpcs:disable WordPress.WP.AlternativeFunctions -- to custom.
		$ch = curl_init();
		curl_setopt( $ch, CURLOPT_URL, $url );
		curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
		curl_setopt( $ch, CURLOPT_POST, true );
		curl_setopt( $ch, CURLOPT_POSTFIELDS, $postdata );
		curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, 10 );
		curl_setopt( $ch, CURLOPT_USERAGENT, $agent );
		$data        = curl_exec( $ch );
		$http_status = curl_getinfo( $ch, CURLINFO_HTTP_CODE );
		$err         = curl_error( $ch );
		curl_close( $ch );

		if ( ( false === $data ) && ( 0 === $http_status ) ) {
			throw new \Exception( 'Http Error: ' . $err );
		} elseif ( preg_match( '/<mainwp>(.*)<\/mainwp>/', $data, $results ) > 0 ) {
			$result      = $results[1];
			$result_base = base64_decode( $result ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions -- base64_encode function is used for begin reasons.
			$information = json_decode( $result_base, true ); // it is json_encode result.
			return $information;
		} elseif ( '' === $data ) {
			throw new \Exception( __( 'Something went wrong while contacting the child site. Please check if there is an error on the child site. This error could also be caused by trying to clone or restore a site to large for your server settings.', 'mainwp-child' ) );
		} else {
			throw new \Exception( __( 'Child plugin is disabled or the security key is incorrect. Please resync with your main installation.', 'mainwp-child' ) );
		}
		// phpcs:enable
	}

	public static function validate_mainwp_dir() {
		$done = false;
		$dir  = MainWP_Helper::get_mainwp_dir();
		$dir  = $dir[0];
		if ( MainWP_Helper::get_wp_filesystem() ) {
			global $wp_filesystem;
			try {
				MainWP_Helper::check_dir( $dir, false );
			} catch ( \Exception $e ) {
				// ok!
			}
			if ( ! empty( $wp_filesystem ) ) {
				if ( $wp_filesystem->is_writable( $dir ) ) {
					$done = true;
				}
			}
		}

		//phpcs:disable -- use system functions
		if ( ! $done ) {
			if ( ! file_exists( $dir ) ) {
				@mkdirs( $dir );
			}
			if ( is_writable( $dir ) ) {
				$done = true;
			}
		}
		//phpcs:enable

		return $done;
	}

	public static function close_connection( $val = null ) {

		if ( isset( $_REQUEST['json_result'] ) && true == $_REQUEST['json_result'] ) :
			$output = wp_json_encode( $val );
		else :
			$output = serialize( $val ); // phpcs:ignore -- to compatible.
		endif;

		$output = '<mainwp>' . base64_encode( $output ) . '</mainwp>'; // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions -- base64_encode function is used for begin reasons.
		// Close browser connection so that it can resume AJAX polling.
		header( 'Content-Length: ' . strlen( $output ) );
		header( 'Connection: close' );
		header( 'Content-Encoding: none' );
		if ( session_id() ) {
			session_write_close();
		}
		echo $output;
		if ( ob_get_level() ) {
			ob_end_flush();
		}
		flush();
	}

	public static function create_nonce_without_session( $action = - 1 ) {
		$user = wp_get_current_user();
		$uid  = (int) $user->ID;
		if ( ! $uid ) {
			$uid = apply_filters( 'nonce_user_logged_out', $uid, $action );
		}

		$i = wp_nonce_tick();

		return substr( wp_hash( $i . '|' . $action . '|' . $uid, 'nonce' ), - 12, 10 );
	}

	public static function verify_nonce_without_session( $nonce, $action = - 1 ) {
		$nonce = (string) $nonce;
		$user  = wp_get_current_user();
		$uid   = (int) $user->ID;
		if ( ! $uid ) {
			$uid = apply_filters( 'nonce_user_logged_out', $uid, $action );
		}

		if ( empty( $nonce ) ) {
			return false;
		}

		$i = wp_nonce_tick();

		$expected = substr( wp_hash( $i . '|' . $action . '|' . $uid, 'nonce' ), - 12, 10 );
		if ( hash_equals( $expected, $nonce ) ) {
			return 1;
		}

		$expected = substr( wp_hash( ( $i - 1 ) . '|' . $action . '|' . $uid, 'nonce' ), - 12, 10 );
		if ( hash_equals( $expected, $nonce ) ) {
			return 2;
		}

		return false;
	}

	public static function update_lasttime_backup( $by, $time ) {
		$backup_by = array( 'backupbuddy', 'backupwordpress', 'backwpup', 'updraftplus', 'wptimecapsule' );
		if ( ! in_array( $by, $backup_by ) ) {
			return false;
		}

		$lasttime = get_option( 'mainwp_lasttime_backup_' . $by );
		if ( $time > $lasttime ) {
			update_option( 'mainwp_lasttime_backup_' . $by, $time );
		}

		return true;
	}

	public static function get_lasttime_backup( $by ) {

		if ( 'backupwp' == $by ) {
			$by = 'backupwordpress';
		}

		$activated = true;
		switch ( $by ) {
			case 'backupbuddy':
				if ( ! is_plugin_active( 'backupbuddy/backupbuddy.php' ) && ! is_plugin_active( 'Backupbuddy/backupbuddy.php' ) ) {
					$activated = false;
				}
				break;
			case 'backupwordpress':
				if ( ! is_plugin_active( 'backupwordpress/backupwordpress.php' ) ) {
					$activated = false;
				}
				break;
			case 'backwpup':
				if ( ! is_plugin_active( 'backwpup/backwpup.php' ) && ! is_plugin_active( 'backwpup-pro/backwpup.php' ) ) {
					$activated = false;
				}
				break;
			case 'updraftplus':
				if ( ! is_plugin_active( 'updraftplus/updraftplus.php' ) ) {
					$activated = false;
				}
				break;
			case 'wptimecapsule':
				if ( ! is_plugin_active( 'wp-time-capsule/wp-time-capsule.php' ) ) {
					$activated = false;
				}
				break;
			default:
				$activated = false;
				break;
		}

		if ( ! $activated ) {
			return 0;
		}

		return get_option( 'mainwp_lasttime_backup_' . $by, 0 );
	}
}