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Package canonical-files
Short Description Extension to add canonical url headers to files
License GPL-3.0-only
Informations about the package canonical-files
Canonical URL header for files
This TYPO3 extension adds canonical url headers to files (images, PDFs...), depending on the file storage the files are located in. Storages can be linked to specific sites (respectively site configurations), so all files located in that storage are delivered with an additional canonical header pointing to the domain of the according site.
Let's say a TYPO3 instance serves two domains, example.at
and example.de, wich have two file storages defined
respectively, storage-at
and storage-de
. Then a file provided for
download on domain example.at but physically located in
storage-de
will be delivered with the canonical header
https://example.de/fileadmin/....
Installation
Add the package to your composer.json via
The extension adds the field tx_canonical_files_site_identifier
to the
table sys_file_storage
. Compare database (database migration) if necessary.
Configuration
Add a file storage for each available site configuration (if applicable)
and set the field Site
in the tab Canonical Files
accordingly. All files
stored within such a file storage will get the base, respectively base
variant, of this site configuration as canonical header.
To make this happen, files have to be routed through TYPO3: Add the following lines to your project's .htaccess file (amend accordingly):
Optional
It makes sense to prevent editors to upload files directly from file reference fields within backend forms. Add this to your TSconfig to apply it globally:
Legal
License
This package is provided under the GPL v3 license. See the file https://www.gnu.org/licenses/gpl-3.0 for details.