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<?php /** * File :class-boldgrid-backup-admin-time.php * * @link https://www.boldgrid.com * @since 1.6.0 * * @package Boldgrid_Backup * @subpackage Boldgrid_Backup/admin * @copyright BoldGrid * @version $Id$ * @author BoldGrid <support@boldgrid.com> / /* * Class: Boldgrid_Backup_Admin_Time * * @since 1.6.0 / class Boldgrid_Backup_Admin_Time { /* * The core class object. * * @since 1.6.0 * @access private * @var Boldgrid_Backup_Admin_Core / private $core; /* * UTC Time. * * @since 1.6.0 * @access public * @var int / public $utc_time; /* * Local time (local to a user). * * @since 1.6.0 * @access public * @var int / public $local_time; /* * Local timezon (local to a user). * * @since 1.6.0 * @access public * @var string / public $local_timezone; /* * Server offset. * * @since 1.6.0 * @access public * @var int / public $server_offset = null; /* * Constructor. * * @since 1.6.0 * * @param Boldgrid_Backup_Admin_Core $core Core class object. / public function __construct( $core ) { $this->core = $core; } /* * Get the server's current date. * * @since 1.6.5 * * @return string / public function get_server_date() { $date = $this->core->execute_command( 'date' ); return ! $date ? __( 'Unknown', 'boldgrid-backup' ) : $date; } /* * Get a server's UTC offset. * * @since 1.6.0 * * @return int / public function get_server_offset() { if ( is_null( $this->server_offset ) ) { $this->server_offset = $this->core->execute_command( 'date +%:::z' ); } return $this->server_offset; } /* * Get our server's timezone as a DateTimeZone object. * * @since 1.6.0 * * @return mixed DateTimeZone object on success, false on failure. / public function get_server_timezone() { / * Determine how we are going to get the server's timezone. * * PHP time zone buffoonery (or my own). * * php -r "new DateTimeZone( '-0400' );" * ------------- -------------- * - PHP 5.3.3 - - PHP 5.6.30 - * ------------- -------------- * DateTimeZone::__construct(): Works as expected. * Unknown or bad timezone (-0400) * * php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();'; * ------------- -------------- * - PHP 5.3.3 - - PHP 5.6.30 - * ------------- -------------- * America/New_York EDT * * php -r '$tz = new DateTimeZone( "EDT" ); echo $tz->getName();'; * ------------- -------------- * - PHP 5.3.3 - - PHP 5.6.30 - * ------------- -------------- * DateTimeZone Object DateTimeZone Object * ( ( * ) [timezone_type] => 2 * [timezone] => EDT * ) / $timezone = new DateTimeZone( 'EDT' ); if ( 'EDT' === $timezone->getName() ) { // Example, get -0400. $timezone = $this->core->execute_command( 'date +%z' ); } else { // Example, get EDT. $timezone = $this->core->execute_command( 'date +%Z' ); } try { $timezone = new DateTimeZone( $timezone ); return $timezone; } catch ( Exception $e ) { return false; } } /* * Get a DateTime object based on time set in $settings. * * On our Settings page, the user can enter a time to schedule automated * backups. This method takes that time (hour, minute, ampm) and returns it * as a DateTime object. * * @since 1.6.0 * * @param array $settings Settings. * @param array $tz_info Timezone information. * @return DateTime / public function get_settings_date( $settings = array(), $tz_info = array() ) { // Abort right away if bad data sent in. if ( ! is_array( $settings ) \|\| ! is_array( $tz_info ) ) { return false; } $settings = empty( $settings ) ? $this->core->settings->get_settings() : $settings; $tz_info = empty( $tz_info ) ? $this->get_timezone_info() : $tz_info; $is_utc = ! empty( $tz_info['abbr'] ) && 'UTC' === substr( $tz_info['abbr'], 0, 3 ); $time_string = $settings['schedule']['tod_h'] . ':' . $settings['schedule']['tod_m'] . ' ' . $settings['schedule']['tod_a']; / * DateTime Timezone types. * * I didn't comprehend this from: * http://php.net/manual/en/datetime.construct.php * ... However according to * https://stackoverflow.com/questions/17694894/different-timezone-types-on-datetime-object * ... DateTime objects with timezones can be constructed in the following ways: * # Type 1: A UTC offset new DateTime( "17 July 2013 -0300" ); * # Type 2: A timezone abbreviation new DateTime( "17 July 2013 GMT" ); * # Type 3: A timezone identifier new DateTime( "17 July 2013", new DateTimeZone( "Europe/London" ) ); / try { if ( $is_utc ) { $date = new DateTime( $time_string, new DateTimeZone( 'UTC' ) ); // If we have a gmt_offset (example: -4.5), use that, otherwise parse the -4 from UTC-4. $offset = ! empty( $tz_info['gmt_offset'] ) ? $tz_info['gmt_offset'] : substr( $tz_info['abbr'], 3 ); / * The user may have set UTC-4, but the $date above is simply UTC. * Modify the $date to actually get UTC. So if the user wants * 10:20 am UTC-4 we'll give them 2:20 pm UTC. / $date->modify( ( -1 $offset * HOUR_IN_SECONDS ) . ' second' ); } else { $date = new DateTime( $time_string, new DateTimeZone( $tz_info['name'] ) ); } return $date; } catch ( Exception $e ) { return false; } } /** * Format GMT Offset. * * This method required by this->get_timezone_info(). * * @since 1.6.0 * * @param float $offset Offset in hours. * @return string Formatted offset. / public function format_gmt_offset( $offset ) { if ( 0 <= $offset ) { $formatted_offset = '+' . (string) $offset; } else { $formatted_offset = (string) $offset; } $formatted_offset = str_replace( array( '.25', '.5', '.75' ), array( ':15', ':30', ':45' ), $formatted_offset ); return $formatted_offset; } /* * Get a <span> of our time. * * @since 1.6.0 * * @param string $format Date format. * @return string / public function get_span( $format = 'M j, Y h:i a' ) { if ( empty( $this->local_time ) ) { return ''; } return sprintf( '<span title="%1$s">%2$s</span>', $this->local_timezone, date( $format, $this->local_time ) ); } /* * Get timezone info. * * This is a core WordPress function, copied here. It requires * the format_gmt_offset() method, which is copied here as well. * * The core implementation of this method is used within the Customizer to * show a user their timezone when scheduling changes for a future date. * * In our efforts to use the same formatting as WordPress, we attempted to * use this method, however ran into a blocker. This method is defined in the * WP_Customize_Date_Time_Control class, which extends the WP_Customize_Control * class. The WP_Customize_Control class was designed for use within the * Customizer, and cannot really be instantiated outside of it. * * Example: WordPress set to UTC-4 * Array * ( * [abbr] => UTC-4 * [description] => Timezone is UTC-4. * [markup_timezone] => UTC-4 * [markup_change] => Change timezone * ) * * Example: WordPress set to NewYork * Array * ( * [abbr] => EDT * [name] => America/New_York * [description] => Timezone is America/New York (EDT), currently UTC-4. * [markup_timezone] => EDT * [markup_change] => Change timezone * ) * * Example: WordPress set to UTC-4.5 * Array * ( * [gmt_offset] => -4.5 * [abbr] => UTC-4.5 * [description] => Timezone is UTC-4.5. * [markup_timezone] => UTC-4.5 * [markup_change] => Change timezone * ) * * @since 1.6.0 * * @return array / public function get_timezone_info() { $tz_string = get_option( 'timezone_string' ); $timezone_info = array(); if ( $tz_string ) { try { $tz = new DateTimezone( $tz_string ); } catch ( Exception $e ) { $tz = ''; } if ( $tz ) { $now = new DateTime( 'now', $tz ); $formatted_gmt_offset = sprintf( 'UTC%s', $this->format_gmt_offset( $tz->getOffset( $now ) / 3600 ) ); $tz_name = str_replace( '_', ' ', $tz->getName() ); $timezone_info['abbr'] = $now->format( 'T' ); // This set of code is not in core. $timezone_info['name'] = $tz->getName(); / translators: 1: timezone name, 2: timezone abbreviation, 3: gmt offset / $timezone_info['description'] = sprintf( __( 'Timezone is %1$s (%2$s), currently %3$s.' ), $tz_name, $timezone_info['abbr'], $formatted_gmt_offset ); } else { $timezone_info['description'] = ''; } } else { // This set of code is not in core. $gmt_offset = get_option( 'gmt_offset', 0 ); if ( ! empty( $gmt_offset ) ) { $timezone_info['gmt_offset'] = $gmt_offset; } / * Not sure why WordPress is doing this. If it is -4.5, show me -4.5 and not -4. * $formatted_gmt_offset = $this->format_gmt_offset( intval( $gmt_offset ) );. / $formatted_gmt_offset = $gmt_offset; $timezone_info['abbr'] = sprintf( 'UTC%s', $formatted_gmt_offset ); / translators: %s: UTC offset / $timezone_info['description'] = sprintf( __( 'Timezone is %s.' ), $timezone_info['abbr'] ); } // This set of code is not in core. $timezone_info['markup_timezone'] = sprintf( '<span title="%1$s">%2$s</span>', esc_attr( $timezone_info['description'] ), $timezone_info['abbr'] ); $timezone_info['markup_change'] = sprintf( '<a href="%1$s" title="%3$s">%2$s</a>', admin_url( 'options-general.php' ), __( 'Change timezone', 'boldgrid-backup' ), esc_html( __( 'WordPress timezone settings can be adjusted within Settings » General', 'boldgrid-backup' ) ) ); return $timezone_info; } /* * Init a time. * * @since 1.6.0 * * @param int $time In seconds. * @param string $type The type of type (utc, local, -5). / public function init( $time, $type = 'utc' ) { if ( empty( $time ) ) { $this->reset(); return; } $gmt_offset = get_option( 'gmt_offset' ); $valid_gmt_offset = ! empty( $gmt_offset ) \|\| is_numeric( $gmt_offset ); $this->local_timezone = 'UTC'; / * Determine our UTC time. * * By default, we'll assume the $time passed in is UTC, such as a file's * mtime. * * If the time we have s from a php_zip archive, then the time is the * server's local timezone. If we can get the server's timezone offset, * we can then calculate UTC and the User's local time (set in WordPress). / $this->utc_time = $time; if ( 'php_zip' === $type \|\| 'local' === $type ) { $server_offset = $this->get_server_offset(); // We can calculate UTC time with the server's timezone. if ( is_numeric( $server_offset ) ) { $this->utc_time = $time + ( -1 $server_offset * HOUR_IN_SECONDS ); } } // Once we have the UTC time (above), we can calculate the user's local time. if ( $valid_gmt_offset ) { $this->local_time = $this->utc_time + ( $gmt_offset * HOUR_IN_SECONDS ); $this->local_timezone .= ' ' . $gmt_offset; } else { $this->local_time = $this->utc_time; } } /** * Reset the class. * * @since 1.6.0 */ public function reset() { $this->local_time = null; $this->local_timezone = null; $this->utc_time = null; } }

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