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Vendor dmk Package mkcleaner Short Description Cleans files by removing any metadata with the help of mat2, exiftool and qpdf according to BSI guidelines. License
GPL-2.0-or-later Homepage http://www.dmk-ebusiness.de/
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This extension cleans files by removing most of the metadata according to the BSI
guidelines. This is a important step when it comes
to security so no sensitive information is leaked.
This is done with mat2 (https://0xacab.org/jvoisin/mat2), exiftool (https://exiftool.org/) and qpdf (https://github.com/qpdf/qpdf)
in the moment. You need to install/provide those commands on the server CLI.
If some command is not available system-wide the path
can be configured with $GLOBALS['TYPO3_CONF_VARS']['SYS']['binSetup'] or
$GLOBALS['TYPO3_CONF_VARS']['SYS']['binPath'].
Check the logs for errors after uploading files etc.
As soon as everything is setup almost every file that is added/replaced with the TYPO3 FAL API will be cleaned.
Furthermore there is a scheduler job that can be used for an initial cleanup of desired folders.
Adding a custom cleaner
A custom cleaner can be added in ext_localconf.php like this:
Every cleaner needs to implement DMK\Mkcleaner\Cleaner\CleanerInterface. Please take a look at the
existing cleaners.
Drawbacks
Please keep in mind that neither of the tools is perfect and might break files or leave metadata present.
For example pdf files sometimes loose all links or svg files have changed content when mat2 would
be used.
Therefore pdf files are cleaned with exiftool and qpdf instead of mat2 and svg files are omitted
completely. Please take care of having svg files without metadata yourself.
Changelog
v12.0.1: Optimized description
v12.0.0: Compatibility for TYPO3 11.5 and 12.4 only
v8.0.2: add some error handling
v8.0.1: resolve symlinks
v8.0.0: initial release
Requirestypo3/cms-core Version
^11.5 || ^12.4 php Version
^8.1 || ^8.2 || ^8.3
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