TYPO3 Core

When editors upload files with invalid Extensions or the mime type can not be correctly detected an Exception occurs when the file is (re-)indexed:

#0 TYPO3\CMS\Core\Imaging\ImageMagickFile->resolvePrefix()
#1 TYPO3\CMS\Core\Imaging\ImageMagickFile->__construct('/var/www/typo3-...', 0)
#2 TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\...', '/var/www/typo3-...', 0)
#3 TYPO3\CMS\Core\Imaging\ImageMagickFile::fromFilePath('/var/www/typo3-...', 0)
#4 TYPO3\CMS\Core\Imaging\GraphicalFunctions->executeIdentifyCommandForImageFile('/var/www/typo3-...')
#5 TYPO3\CMS\Core\Imaging\GraphicalFunctions->imageMagickIdentify('/var/www/typo3-...')
#6 TYPO3\CMS\Core\Type\File\ImageInfo->getImageSizes()
#7 TYPO3\CMS\Core\Type\File\ImageInfo->getWidth()
#8 TYPO3\CMS\Core\Resource\Index\Indexer->extractRequiredMetaData(Object(TYPO3\CMS\Core\Resource\File))
#9 TYPO3\CMS\Core\Resource\Index\Indexer->updateIndexEntry(Object(TYPO3\CMS\Core\Resource\File))
...

This can be problematic if a folder is moved / copied because the indexing is aborted as soon as the index entry of the invalid file is processed. This might lead to an inconsistent index state.

Two examples found so far in a larger file base:

• an HTML file was uploaded with a .pdf ending
• another PDF had a mime type of application/octet-stream instead of application/pdf