WIBUHAX0R1337

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<?php
/**
 * Upgrade API: Core_Upgrader class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Core class used for updating core.
 *
 * It allows for WordPress to upgrade itself in combination with
 * the wp-admin/includes/update-core.php file.
 *
 * Note: Newly introduced functions and methods cannot be used here.
 * All functions must be present in the previous version being upgraded from
 * as this file is used there too.
 *
 * @since 2.8.0
 * @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
 *
 * @see WP_Upgrader
 */
class Core_Upgrader extends WP_Upgrader {

/**
	 * Initializes the upgrade strings.
	 *
	 * @since 2.8.0
	 */
	public function upgrade_strings() {
		$this->strings['up_to_date'] = __( 'WordPress is at the latest version.' );
		$this->strings['locked']     = __( 'Another update is currently in progress.' );
		$this->strings['no_package'] = __( 'Update package not available.' );
		/* translators: %s: Package URL. */
		$this->strings['downloading_package']   = sprintf( __( 'Downloading update from %s&#8230;' ), '<span class="code pre">%s</span>' );
		$this->strings['unpack_package']        = __( 'Unpacking the update&#8230;' );
		$this->strings['copy_failed']           = __( 'Could not copy files.' );
		$this->strings['copy_failed_space']     = __( 'Could not copy files. You may have run out of disk space.' );
		$this->strings['start_rollback']        = __( 'Attempting to restore the previous version.' );
		$this->strings['rollback_was_required'] = __( 'Due to an error during updating, WordPress has been restored to your previous version.' );
	}

/**
	 * Upgrades WordPress core.
	 *
	 * @since 2.8.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem                WordPress filesystem subclass.
	 * @global callable           $_wp_filesystem_direct_method
	 *
	 * @param object $current Response object for whether WordPress is current.
	 * @param array  $args {
	 *     Optional. Arguments for upgrading WordPress core. Default empty array.
	 *
	 *     @type bool $pre_check_md5    Whether to check the file checksums before
	 *                                  attempting the upgrade. Default true.
	 *     @type bool $attempt_rollback Whether to attempt to rollback the chances if
	 *                                  there is a problem. Default false.
	 *     @type bool $do_rollback      Whether to perform this "upgrade" as a rollback.
	 *                                  Default false.
	 * }
	 * @return string|false|WP_Error New WordPress version on success, false or WP_Error on failure.
	 */
	public function upgrade( $current, $args = array() ) {
		global $wp_filesystem;

require ABSPATH . WPINC . '/version.php'; // $wp_version;

$start_time = time();

$defaults    = array(
			'pre_check_md5'                => true,
			'attempt_rollback'             => false,
			'do_rollback'                  => false,
			'allow_relaxed_file_ownership' => false,
		);
		$parsed_args = wp_parse_args( $args, $defaults );

$this->init();
		$this->upgrade_strings();

// Is an update available?
		if ( ! isset( $current->response ) || 'latest' === $current->response ) {
			return new WP_Error( 'up_to_date', $this->strings['up_to_date'] );
		}

$res = $this->fs_connect( array( ABSPATH, WP_CONTENT_DIR ), $parsed_args['allow_relaxed_file_ownership'] );
		if ( ! $res || is_wp_error( $res ) ) {
			return $res;
		}

$wp_dir = trailingslashit( $wp_filesystem->abspath() );

$partial = true;
		if ( $parsed_args['do_rollback'] ) {
			$partial = false;
		} elseif ( $parsed_args['pre_check_md5'] && ! $this->check_files() ) {
			$partial = false;
		}

/*
		 * If partial update is returned from the API, use that, unless we're doing
		 * a reinstallation. If we cross the new_bundled version number, then use
		 * the new_bundled zip. Don't though if the constant is set to skip bundled items.
		 * If the API returns a no_content zip, go with it. Finally, default to the full zip.
		 */
		if ( $parsed_args['do_rollback'] && $current->packages->rollback ) {
			$to_download = 'rollback';
		} elseif ( $current->packages->partial && 'reinstall' !== $current->response && $wp_version === $current->partial_version && $partial ) {
			$to_download = 'partial';
		} elseif ( $current->packages->new_bundled && version_compare( $wp_version, $current->new_bundled, '<' )
			&& ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) {
			$to_download = 'new_bundled';
		} elseif ( $current->packages->no_content ) {
			$to_download = 'no_content';
		} else {
			$to_download = 'full';
		}

// Lock to prevent multiple Core Updates occurring.
		$lock = WP_Upgrader::create_lock( 'core_updater', 15 * MINUTE_IN_SECONDS );
		if ( ! $lock ) {
			return new WP_Error( 'locked', $this->strings['locked'] );
		}

$download = $this->download_package( $current->packages->$to_download, false );

/*
		 * Allow for signature soft-fail.
		 * WARNING: This may be removed in the future.
		 */
		if ( is_wp_error( $download ) && $download->get_error_data( 'softfail-filename' ) ) {
			// Output the failure error as a normal feedback, and not as an error:
			/** This filter is documented in wp-admin/includes/update-core.php */
			apply_filters( 'update_feedback', $download->get_error_message() );

// Report this failure back to WordPress.org for debugging purposes.
			wp_version_check(
				array(
					'signature_failure_code' => $download->get_error_code(),
					'signature_failure_data' => $download->get_error_data(),
				)
			);

// Pretend this error didn't happen.
			$download = $download->get_error_data( 'softfail-filename' );
		}

if ( is_wp_error( $download ) ) {
			WP_Upgrader::release_lock( 'core_updater' );
			return $download;
		}

$working_dir = $this->unpack_package( $download );
		if ( is_wp_error( $working_dir ) ) {
			WP_Upgrader::release_lock( 'core_updater' );
			return $working_dir;
		}

// Copy update-core.php from the new version into place.
		if ( ! $wp_filesystem->copy( $working_dir . '/wordpress/wp-admin/includes/update-core.php', $wp_dir . 'wp-admin/includes/update-core.php', true ) ) {
			$wp_filesystem->delete( $working_dir, true );
			WP_Upgrader::release_lock( 'core_updater' );
			return new WP_Error( 'copy_failed_for_update_core_file', __( 'The update cannot be installed because some files could not be copied. This is usually due to inconsistent file permissions.' ), 'wp-admin/includes/update-core.php' );
		}
		$wp_filesystem->chmod( $wp_dir . 'wp-admin/includes/update-core.php', FS_CHMOD_FILE );

wp_opcache_invalidate( ABSPATH . 'wp-admin/includes/update-core.php' );
		require_once ABSPATH . 'wp-admin/includes/update-core.php';

if ( ! function_exists( 'update_core' ) ) {
			WP_Upgrader::release_lock( 'core_updater' );
			return new WP_Error( 'copy_failed_space', $this->strings['copy_failed_space'] );
		}

$result = update_core( $working_dir, $wp_dir );

// In the event of an issue, we may be able to roll back.
		if ( $parsed_args['attempt_rollback'] && $current->packages->rollback && ! $parsed_args['do_rollback'] ) {
			$try_rollback = false;
			if ( is_wp_error( $result ) ) {
				$error_code = $result->get_error_code();
				/*
				 * Not all errors are equal. These codes are critical: copy_failed__copy_dir,
				 * mkdir_failed__copy_dir, copy_failed__copy_dir_retry, and disk_full.
				 * do_rollback allows for update_core() to trigger a rollback if needed.
				 */
				if ( str_contains( $error_code, 'do_rollback' ) ) {
					$try_rollback = true;
				} elseif ( str_contains( $error_code, '__copy_dir' ) ) {
					$try_rollback = true;
				} elseif ( 'disk_full' === $error_code ) {
					$try_rollback = true;
				}
			}

if ( $try_rollback ) {
				/** This filter is documented in wp-admin/includes/update-core.php */
				apply_filters( 'update_feedback', $result );

/** This filter is documented in wp-admin/includes/update-core.php */
				apply_filters( 'update_feedback', $this->strings['start_rollback'] );

$rollback_result = $this->upgrade( $current, array_merge( $parsed_args, array( 'do_rollback' => true ) ) );

$original_result = $result;
				$result          = new WP_Error(
					'rollback_was_required',
					$this->strings['rollback_was_required'],
					(object) array(
						'update'   => $original_result,
						'rollback' => $rollback_result,
					)
				);
			}
		}

/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
		do_action(
			'upgrader_process_complete',
			$this,
			array(
				'action' => 'update',
				'type'   => 'core',
			)
		);

// Clear the current updates.
		delete_site_transient( 'update_core' );

if ( ! $parsed_args['do_rollback'] ) {
			$stats = array(
				'update_type'      => $current->response,
				'success'          => true,
				'fs_method'        => $wp_filesystem->method,
				'fs_method_forced' => defined( 'FS_METHOD' ) || has_filter( 'filesystem_method' ),
				'fs_method_direct' => ! empty( $GLOBALS['_wp_filesystem_direct_method'] ) ? $GLOBALS['_wp_filesystem_direct_method'] : '',
				'time_taken'       => time() - $start_time,
				'reported'         => $wp_version,
				'attempted'        => $current->version,
			);

if ( is_wp_error( $result ) ) {
				$stats['success'] = false;
				// Did a rollback occur?
				if ( ! empty( $try_rollback ) ) {
					$stats['error_code'] = $original_result->get_error_code();
					$stats['error_data'] = $original_result->get_error_data();
					// Was the rollback successful? If not, collect its error too.
					$stats['rollback'] = ! is_wp_error( $rollback_result );
					if ( is_wp_error( $rollback_result ) ) {
						$stats['rollback_code'] = $rollback_result->get_error_code();
						$stats['rollback_data'] = $rollback_result->get_error_data();
					}
				} else {
					$stats['error_code'] = $result->get_error_code();
					$stats['error_data'] = $result->get_error_data();
				}
			}

wp_version_check( $stats );
		}

WP_Upgrader::release_lock( 'core_updater' );

return $result;
	}

/**
	 * Determines if this WordPress Core version should update to an offered version or not.
	 *
	 * @since 3.7.0
	 *
	 * @param string $offered_ver The offered version, of the format x.y.z.
	 * @return bool True if we should update to the offered version, otherwise false.
	 */
	public static function should_update_to_version( $offered_ver ) {
		require ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z

$current_branch = implode( '.', array_slice( preg_split( '/[.-]/', $wp_version ), 0, 2 ) ); // x.y
		$new_branch     = implode( '.', array_slice( preg_split( '/[.-]/', $offered_ver ), 0, 2 ) ); // x.y

$current_is_development_version = (bool) strpos( $wp_version, '-' );

// Defaults:
		$upgrade_dev   = get_site_option( 'auto_update_core_dev', 'enabled' ) === 'enabled';
		$upgrade_minor = get_site_option( 'auto_update_core_minor', 'enabled' ) === 'enabled';
		$upgrade_major = get_site_option( 'auto_update_core_major', 'unset' ) === 'enabled';

// WP_AUTO_UPDATE_CORE = true (all), 'beta', 'rc', 'development', 'branch-development', 'minor', false.
		if ( defined( 'WP_AUTO_UPDATE_CORE' ) ) {
			if ( false === WP_AUTO_UPDATE_CORE ) {
				// Defaults to turned off, unless a filter allows it.
				$upgrade_dev   = false;
				$upgrade_minor = false;
				$upgrade_major = false;
			} elseif ( true === WP_AUTO_UPDATE_CORE
				|| in_array( WP_AUTO_UPDATE_CORE, array( 'beta', 'rc', 'development', 'branch-development' ), true )
			) {
				// ALL updates for core.
				$upgrade_dev   = true;
				$upgrade_minor = true;
				$upgrade_major = true;
			} elseif ( 'minor' === WP_AUTO_UPDATE_CORE ) {
				// Only minor updates for core.
				$upgrade_dev   = false;
				$upgrade_minor = true;
				$upgrade_major = false;
			}
		}

// 1: If we're already on that version, not much point in updating?
		if ( $offered_ver === $wp_version ) {
			return false;
		}

// 2: If we're running a newer version, that's a nope.
		if ( version_compare( $wp_version, $offered_ver, '>' ) ) {
			return false;
		}

$failure_data = get_site_option( 'auto_core_update_failed' );
		if ( $failure_data ) {
			// If this was a critical update failure, cannot update.
			if ( ! empty( $failure_data['critical'] ) ) {
				return false;
			}

// Don't claim we can update on update-core.php if we have a non-critical failure logged.
			if ( $wp_version === $failure_data['current'] && str_contains( $offered_ver, '.1.next.minor' ) ) {
				return false;
			}

/*
			 * Cannot update if we're retrying the same A to B update that caused a non-critical failure.
			 * Some non-critical failures do allow retries, like download_failed.
			 * 3.7.1 => 3.7.2 resulted in files_not_writable, if we are still on 3.7.1 and still trying to update to 3.7.2.
			 */
			if ( empty( $failure_data['retry'] ) && $wp_version === $failure_data['current'] && $offered_ver === $failure_data['attempted'] ) {
				return false;
			}
		}

// 3: 3.7-alpha-25000 -> 3.7-alpha-25678 -> 3.7-beta1 -> 3.7-beta2.
		if ( $current_is_development_version ) {

/**
			 * Filters whether to enable automatic core updates for development versions.
			 *
			 * @since 3.7.0
			 *
			 * @param bool $upgrade_dev Whether to enable automatic updates for
			 *                          development versions.
			 */
			if ( ! apply_filters( 'allow_dev_auto_core_updates', $upgrade_dev ) ) {
				return false;
			}
			// Else fall through to minor + major branches below.
		}

// 4: Minor in-branch updates (3.7.0 -> 3.7.1 -> 3.7.2 -> 3.7.4).
		if ( $current_branch === $new_branch ) {

/**
			 * Filters whether to enable minor automatic core updates.
			 *
			 * @since 3.7.0
			 *
			 * @param bool $upgrade_minor Whether to enable minor automatic core updates.
			 */
			return apply_filters( 'allow_minor_auto_core_updates', $upgrade_minor );
		}

// 5: Major version updates (3.7.0 -> 3.8.0 -> 3.9.1).
		if ( version_compare( $new_branch, $current_branch, '>' ) ) {

/**
			 * Filters whether to enable major automatic core updates.
			 *
			 * @since 3.7.0
			 *
			 * @param bool $upgrade_major Whether to enable major automatic core updates.
			 */
			return apply_filters( 'allow_major_auto_core_updates', $upgrade_major );
		}

// If we're not sure, we don't want it.
		return false;
	}

/**
	 * Compares the disk file checksums against the expected checksums.
	 *
	 * @since 3.7.0
	 *
	 * @global string $wp_version       The WordPress version string.
	 * @global string $wp_local_package Locale code of the package.
	 *
	 * @return bool True if the checksums match, otherwise false.
	 */
	public function check_files() {
		global $wp_version, $wp_local_package;

$checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );

if ( ! is_array( $checksums ) ) {
			return false;
		}

foreach ( $checksums as $file => $checksum ) {
			// Skip files which get updated.
			if ( str_starts_with( $file, 'wp-content' ) ) {
				continue;
			}
			if ( ! file_exists( ABSPATH . $file ) || md5_file( ABSPATH . $file ) !== $checksum ) {
				return false;
			}
		}

return true;
	}
}

Nama File / Folder	Size	Action
962678	--	NONE
.htaccess	0.231KB	Edit File Delete File Rename
admin-filters.php	7.846KB	Edit File Delete File Rename
admin.php	3.543KB	Edit File Delete File Rename
class-automatic-upgrader-skin.php	3.577KB	Edit File Delete File Rename
class-bulk-plugin-upgrader-skin.php	2.529KB	Edit File Delete File Rename
class-bulk-theme-upgrader-skin.php	2.598KB	Edit File Delete File Rename
class-bulk-upgrader-skin.php	6.595KB	Edit File Delete File Rename
class-core-upgrader.php	14.835KB	Edit File Delete File Rename
class-custom-background.php	21.143KB	Edit File Delete File Rename
class-file-upload-upgrader.php	4.065KB	Edit File Delete File Rename
class-ftp-sockets.php	8.28KB	Edit File Delete File Rename
class-ftp.php	26.729KB	Edit File Delete File Rename
class-language-pack-upgrader-skin.php	2.803KB	Edit File Delete File Rename
class-language-pack-upgrader.php	15.196KB	Edit File Delete File Rename
class-pclzip.php	192.085KB	Edit File Delete File Rename
class-plugin-upgrader-skin.php	3.201KB	Edit File Delete File Rename
class-plugin-upgrader.php	22.698KB	Edit File Delete File Rename
class-theme-upgrader-skin.php	4.078KB	Edit File Delete File Rename
class-theme-upgrader.php	26.076KB	Edit File Delete File Rename
class-walker-category-checklist.php	4.972KB	Edit File Delete File Rename
class-walker-nav-menu-checklist.php	5.496KB	Edit File Delete File Rename
class-walker-nav-menu-edit.php	13.848KB	Edit File Delete File Rename
class-wp-ajax-upgrader-skin.php	4.095KB	Edit File Delete File Rename
class-wp-application-passwords-list-table.php	6.786KB	Edit File Delete File Rename
class-wp-automatic-updater.php	60.451KB	Edit File Delete File Rename
class-wp-comments-list-table.php	32.281KB	Edit File Delete File Rename
class-wp-community-events.php	18.329KB	Edit File Delete File Rename
class-wp-debug-data.php	65.058KB	Edit File Delete File Rename
class-wp-filesystem-base.php	23.838KB	Edit File Delete File Rename
class-wp-filesystem-direct.php	17.718KB	Edit File Delete File Rename
class-wp-filesystem-ftpext.php	22.56KB	Edit File Delete File Rename
class-wp-filesystem-ftpsockets.php	18.046KB	Edit File Delete File Rename
class-wp-filesystem-ssh2.php	22.764KB	Edit File Delete File Rename
class-wp-internal-pointers.php	4.47KB	Edit File Delete File Rename
class-wp-links-list-table.php	9.024KB	Edit File Delete File Rename
class-wp-list-table-compat.php	1.462KB	Edit File Delete File Rename
class-wp-list-table.php	51.666KB	Edit File Delete File Rename
class-wp-media-list-table.php	25.292KB	Edit File Delete File Rename
class-wp-ms-sites-list-table.php	21.503KB	Edit File Delete File Rename
class-wp-ms-themes-list-table.php	27.771KB	Edit File Delete File Rename
class-wp-ms-users-list-table.php	15.351KB	Edit File Delete File Rename
class-wp-plugin-install-list-table.php	24.205KB	Edit File Delete File Rename
class-wp-plugins-list-table.php	56.432KB	Edit File Delete File Rename
class-wp-post-comments-list-table.php	1.419KB	Edit File Delete File Rename
class-wp-posts-list-table.php	62.711KB	Edit File Delete File Rename
class-wp-privacy-data-export-requests-list-table.php	5.433KB	Edit File Delete File Rename
class-wp-privacy-data-removal-requests-list-table.php	5.581KB	Edit File Delete File Rename
class-wp-privacy-requests-table.php	14.058KB	Edit File Delete File Rename
class-wp-screen.php	36.452KB	Edit File Delete File Rename
class-wp-site-health-auto-updates.php	14.001KB	Edit File Delete File Rename
class-wp-site-icon.php	6.264KB	Edit File Delete File Rename
class-wp-terms-list-table.php	20.686KB	Edit File Delete File Rename
class-wp-theme-install-list-table.php	15.233KB	Edit File Delete File Rename
class-wp-themes-list-table.php	10.106KB	Edit File Delete File Rename
class-wp-upgrader-skin.php	6.943KB	Edit File Delete File Rename
class-wp-upgrader-skins.php	1.442KB	Edit File Delete File Rename
class-wp-upgrader.php	46.884KB	Edit File Delete File Rename
class-wp-users-list-table.php	18.611KB	Edit File Delete File Rename
comment.php	5.978KB	Edit File Delete File Rename
dashboard.php	68.076KB	Edit File Delete File Rename
deprecated.php	40.797KB	Edit File Delete File Rename
edit-tag-messages.php	1.443KB	Edit File Delete File Rename
export.php	24.966KB	Edit File Delete File Rename
file.php	95.868KB	Edit File Delete File Rename
image-edit.php	42.854KB	Edit File Delete File Rename
image.php	41.664KB	Edit File Delete File Rename
import.php	6.462KB	Edit File Delete File Rename
index.php	0KB	Edit File Delete File Rename
list-table.php	3.713KB	Edit File Delete File Rename
media.php	116.317KB	Edit File Delete File Rename
menu.php	9.393KB	Edit File Delete File Rename
meta-boxes.php	64.527KB	Edit File Delete File Rename
misc.php	44.71KB	Edit File Delete File Rename
ms-admin-filters.php	1.266KB	Edit File Delete File Rename
ms-deprecated.php	3.682KB	Edit File Delete File Rename
ms.php	33.514KB	Edit File Delete File Rename
nav-menu.php	47.892KB	Edit File Delete File Rename
network.php	26.363KB	Edit File Delete File Rename
noop.php	1.121KB	Edit File Delete File Rename
options.php	4.151KB	Edit File Delete File Rename
plugin-install.php	38.549KB	Edit File Delete File Rename
plugin.php	90.747KB	Edit File Delete File Rename
post.php	80.276KB	Edit File Delete File Rename
privacy-tools.php	32.678KB	Edit File Delete File Rename
revision.php	16.179KB	Edit File Delete File Rename
schema.php	41.862KB	Edit File Delete File Rename
screen.php	6.229KB	Edit File Delete File Rename
taxonomy.php	8.227KB	Edit File Delete File Rename
template.php	96.22KB	Edit File Delete File Rename
theme-install.php	6.826KB	Edit File Delete File Rename
theme.php	46.623KB	Edit File Delete File Rename
translation-install.php	10.815KB	Edit File Delete File Rename
update-core.php	68.502KB	Edit File Delete File Rename
update.php	33.63KB	Edit File Delete File Rename
upgrade.php	112.091KB	Edit File Delete File Rename
user.php	22.98KB	Edit File Delete File Rename
widgets.php	10.656KB	Edit File Delete File Rename