Silverstripe FolderIndex

Silverstripe FolderIndex allows you to manage visibility of files for search engines on a parent folder basis by utilizing X-Robots header tags such as noindex, nofollow, noimageindex, noarchive, and nosnippet. By unchecking the ShowInSearch option in the Details tab of a folder, X-Robots headers will be applied to all files contained within, including those in sub-folders. If you have tractorcow/silverstripe-robots module installed, "unchecked folders" are also disallowed in robots.txt.

The module introduces NoFileIndex() function to File. This can be useful if for example an image should be included in a XML sitemaps, schemas etc. And is used in CMS/Assets context to indicate whether a file has X-Robots-Tag headers set through its parent folder or any higher-level ancestor/folder. If set, the function returns the corresponding folder that prevents indexing; otherwise, it returns false. This module integrates with Apache .htaccess and also proved to work with Litespeed.

Requirements

• silverstripe/asset-admin: ^1 | ^2

Installation

Composer is the recommended method for installing Silverstripe modules.

composer require lerni/folderindex

Run dev/build

Getting Started / Usage

• Uncheck Indexing child files checkbox of a folder under Permissions, save and rules will automatically generate in assets/.htaccess.

Please note this module "overwrites" SilverStripe/Assets/Flysystem/PublicAssetAdapter_HTAccess.ss template.

Credits

Thanks to @zauberfisch and @digitall-it for inspiration and translation.

ToDo

• Implement a mechanism to write to assets/.htaccess directly, rather than relying solely on dev/build.
• Address issue where roles are erroneously assigned to sub-folders that are blocked through parent folders.
• Provide ability to configure X-Robots-Tag settings through yml-config.
• Display X-Robots-Tag warning (alert) in the file section, not just in the Details panel.