wp/wp-admin/includes/class-core-upgrader.php
changeset 9 177826044cd9
parent 7 cf61fcea0001
child 16 a86126ab1dd4
--- a/wp/wp-admin/includes/class-core-upgrader.php	Mon Oct 14 18:06:33 2019 +0200
+++ b/wp/wp-admin/includes/class-core-upgrader.php	Mon Oct 14 18:28:13 2019 +0200
@@ -26,15 +26,15 @@
 	 * @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.');
+		$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">%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 roll back to previous version.' );
+		$this->strings['downloading_package']   = sprintf( __( 'Downloading update from %s&#8230;' ), '<span class="code">%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 roll back to previous version.' );
 		$this->strings['rollback_was_required'] = __( 'Due to an error during updating, WordPress has rolled back to your previous version.' );
 	}
 
@@ -43,7 +43,7 @@
 	 *
 	 * @since 2.8.0
 	 *
-	 * @global WP_Filesystem_Base $wp_filesystem Subclass
+	 * @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.
@@ -66,10 +66,10 @@
 
 		$start_time = time();
 
-		$defaults = array(
-			'pre_check_md5'    => true,
-			'attempt_rollback' => false,
-			'do_rollback'      => false,
+		$defaults    = array(
+			'pre_check_md5'                => true,
+			'attempt_rollback'             => false,
+			'do_rollback'                  => false,
 			'allow_relaxed_file_ownership' => false,
 		);
 		$parsed_args = wp_parse_args( $args, $defaults );
@@ -78,21 +78,23 @@
 		$this->upgrade_strings();
 
 		// Is an update available?
-		if ( !isset( $current->response ) || $current->response == 'latest' )
-			return new WP_Error('up_to_date', $this->strings['up_to_date']);
+		if ( ! isset( $current->response ) || $current->response == 'latest' ) {
+			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());
+		$wp_dir = trailingslashit( $wp_filesystem->abspath() );
 
 		$partial = true;
-		if ( $parsed_args['do_rollback'] )
+		if ( $parsed_args['do_rollback'] ) {
 			$partial = false;
-		elseif ( $parsed_args['pre_check_md5'] && ! $this->check_files() )
+		} 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
@@ -100,17 +102,18 @@
 		 * 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 )
+		if ( $parsed_args['do_rollback'] && $current->packages->rollback ) {
 			$to_download = 'rollback';
-		elseif ( $current->packages->partial && 'reinstall' != $current->response && $wp_version == $current->partial_version && $partial )
+		} 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 ) )
+		} 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 )
+		} elseif ( $current->packages->no_content ) {
 			$to_download = 'no_content';
-		else
+		} else {
 			$to_download = 'full';
+		}
 
 		// Lock to prevent multiple Core Updates occurring
 		$lock = WP_Upgrader::create_lock( 'core_updater', 15 * MINUTE_IN_SECONDS );
@@ -118,7 +121,26 @@
 			return new WP_Error( 'locked', $this->strings['locked'] );
 		}
 
-		$download = $this->download_package( $current->packages->$to_download );
+		$download = $this->download_package( $current->packages->$to_download, true );
+
+		// Allow for signature soft-fail.
+		// WARNING: This may be removed in the future.
+		if ( is_wp_error( $download ) && $download->get_error_data( 'softfail-filename' ) ) {
+			// Outout the failure error as a normal feedback, and not as an error:
+			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;
@@ -131,12 +153,12 @@
 		}
 
 		// 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);
+		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 we will be unable to copy some files. 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_filesystem->chmod( $wp_dir . 'wp-admin/includes/update-core.php', FS_CHMOD_FILE );
 
 		require_once( ABSPATH . 'wp-admin/includes/update-core.php' );
 
@@ -157,12 +179,13 @@
 				 * 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 ( false !== strpos( $error_code, 'do_rollback' ) )
+				if ( false !== strpos( $error_code, 'do_rollback' ) ) {
+					$try_rollback = true;
+				} elseif ( false !== strpos( $error_code, '__copy_dir' ) ) {
 					$try_rollback = true;
-				elseif ( false !== strpos( $error_code, '__copy_dir' ) )
+				} elseif ( 'disk_full' === $error_code ) {
 					$try_rollback = true;
-				elseif ( 'disk_full' === $error_code )
-					$try_rollback = true;
+				}
 			}
 
 			if ( $try_rollback ) {
@@ -175,12 +198,26 @@
 				$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 ) );
+				$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' ) );
+		do_action(
+			'upgrader_process_complete',
+			$this,
+			array(
+				'action' => 'update',
+				'type'   => 'core',
+			)
+		);
 
 		// Clear the current updates
 		delete_site_transient( 'update_core' );
@@ -191,7 +228,7 @@
 				'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'] : '',
+				'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,
@@ -228,16 +265,14 @@
 	 *
 	 * @since 3.7.0
 	 *
-	 * @static
-	 *
 	 * @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 ) {
 		include( 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_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:
@@ -255,34 +290,39 @@
 				$upgrade_dev = $upgrade_minor = $upgrade_major = true;
 			} elseif ( 'minor' === WP_AUTO_UPDATE_CORE ) {
 				// Only minor updates for core
-				$upgrade_dev = $upgrade_major = false;
+				$upgrade_dev   = $upgrade_major = false;
 				$upgrade_minor = true;
 			}
 		}
 
 		// 1: If we're already on that version, not much point in updating?
-		if ( $offered_ver == $wp_version )
+		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, '>' ) )
+		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'] ) )
+			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'] && false !== strpos( $offered_ver, '.1.next.minor' ) )
+			if ( $wp_version == $failure_data['current'] && false !== strpos( $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'] )
+			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
@@ -296,8 +336,9 @@
 			 * @param bool $upgrade_dev Whether to enable automatic updates for
 			 *                          development versions.
 			 */
-			if ( ! apply_filters( 'allow_dev_auto_core_updates', $upgrade_dev ) )
+			if ( ! apply_filters( 'allow_dev_auto_core_updates', $upgrade_dev ) ) {
 				return false;
+			}
 			// Else fall through to minor + major branches below.
 		}
 
@@ -346,15 +387,18 @@
 
 		$checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );
 
-		if ( ! is_array( $checksums ) )
+		if ( ! is_array( $checksums ) ) {
 			return false;
+		}
 
 		foreach ( $checksums as $file => $checksum ) {
 			// Skip files which get updated
-			if ( 'wp-content' == substr( $file, 0, 10 ) )
+			if ( 'wp-content' == substr( $file, 0, 10 ) ) {
 				continue;
-			if ( ! file_exists( ABSPATH . $file ) || md5_file( ABSPATH . $file ) !== $checksum )
+			}
+			if ( ! file_exists( ABSPATH . $file ) || md5_file( ABSPATH . $file ) !== $checksum ) {
 				return false;
+			}
 		}
 
 		return true;