PSR-14 events

The file abstraction layer (FAL) comes with a series of PSR-14 events that offer the opportunity to hook into FAL processes at a variety of points.

They are listed below with some explanation, in particular when they are sent (if the name is not explicit enough) and what parameters the corresponding event will receive. They are grouped by emitting class.

Most events exist in pairs, one being sent before a given operation, the other one after.

Note

Unless communicated otherwise, mentions of the File class below actually refer to the \TYPO3\CMS\Core\Resource\FileInterface interface.

Folder objects actually refer to the \TYPO3\CMS\Core\Resource\Folder class.

Table of contents:

`\TYPO3\CMS\Core\Resource\DefaultUploadFolderResolver`

AfterDefaultUploadFolderWasResolvedEvent: New in version 12.3

Allows to modify the default upload folder after it has been resolved for the current page or user.

`\TYPO3\CMS\Core\Resource\OnlineMedia\Processing\PreviewProcessing`

AfterVideoPreviewFetchedEvent: New in version 12.2

Modifies the preview file of online media previews (like YouTube and Vimeo).

`\TYPO3\CMS\Core\Resource\ResourceStorage`

SanitizeFileNameEvent

The sanitize file name operation aims to remove characters from filenames which are not allowed by the underlying driver. The event receives the filename and the target folder.

BeforeFileAddedEvent

Receives the target file name, the target folder (as a Folder instance) and the local file path.

AfterFileAddedEvent

Receives the File instance corresponding to the newly stored file and the target folder (as a Folder instance).

BeforeFileCreatedEvent

Receives the file name to be created and the target folder (as a Folder instance).

AfterFileCreatedEvent

Receives the name of the newly created file and the target folder (as a Folder instance).

BeforeFileCopiedEvent

Receives a File instance for the file to be copied and the target folder (as a Folder instance).

AfterFileCopiedEvent

Receives a File instance for the file that was copied (i.e. the original file) and the target folder (as a Folder instance).

BeforeFileMovedEvent

Receives a File instance for the file to be moved and the target folder (as a Folder instance).

AfterFileMovedEvent

Receives a File instance for the file that was moved, the target folder and the original folder the file was in (both as Folder instances).

BeforeFileDeletedEvent

Receives a File instance for the file to be deleted.

AfterFileDeletedEvent

Receives a File instance for the file that was deleted.

BeforeFileRenamedEvent

Receives a File instance for the file to be renamed and the sanitized new name.

AfterFileRenamedEvent

Receives a File instance for the file that was renamed and the sanitized new name.

BeforeFileReplacedEvent

Receives a File instance for the file to be replaced and the path to the local file that will replace it.

AfterFileReplacedEvent

Receives a File instance for the file that was replaced and the path to the local file that has replaced it.

BeforeFileContentsSetEvent

Receives a File instance for the file whose content will be changed and the content itself (as a string).

AfterFileContentsSetEvent

Receives a File instance for the file whose content was changed and the content itself (as a string).

BeforeFolderAddedEvent

Receives the name of the new folder and a reference to the parent folder, if any (as a Folder instance).

AfterFolderAddedEvent

Receives the newly created folder (as a Folder instance).

BeforeFolderCopiedEvent

Receives references to the folder to copy and the parent target folder (both as \TYPO3\CMS\Core\Resource\FolderInterface instances) and the sanitized name for the copy.

AfterFolderCopiedEvent

Receives references to the original folder and the parent target folder (both as \TYPO3\CMS\Core\Resource\FolderInterface instances) and the identifier of the newly copied folder.

BeforeFolderMovedEvent

Receives references to the folder to move and the parent target folder (both as Folder instances) and the sanitized target name.

AfterFolderMovedEvent

Receives references to the folder to move and the parent target folder (both as Folder instances), the identifier of the moved folder and a reference to the original parent folder (as a Folder instance).

BeforeFolderDeletedEvent

Receives a reference to the folder to delete (as a Folder instance).

AfterFolderDeletedEvent

Receives a reference to the deleted folder (as a Folder instance).

BeforeFolderRenamedEvent

Receives a reference to the folder to be renamed (as a Folder instance) and the sanitized new name.

AfterFolderRenamedEvent

Receives a reference to the renamed folder (as a Folder instance) and the new identifier of the renamed folder.

GeneratePublicUrlForResourceEvent

This event makes it possible to influence the construction of the public URL of a resource. If the event defines the URL, it is kept as is and the rest of the URL generation process is ignored.

It receives a reference to the instance for which the URL should be generated (as a \TYPO3\CMS\Core\Resource\ResourceInterface instance), a boolean flag indicating whether the URL should be relative to the current script or absolute and a reference to the public URL (which is null at this point, but can be then modified by the event).

`\TYPO3\CMS\Core\Resource\StorageRepository`

BeforeResourceStorageInitializationEvent: This event is dispatched by the method \TYPO3\CMS\Core\Resource\StorageRepository::getStorageObject() before a storage object has been fetched. The event receives a reference to the storage.
AfterResourceStorageInitializationEvent: This event is dispatched by the method \TYPO3\CMS\Core\Resource\StorageRepository::getStorageObject() after a storage object has been fetched. The event receives a reference to the storage.

`\TYPO3\CMS\Core\Resource\Index\FileIndexRepository`

AfterFileAddedToIndexEvent: Receives an array containing the information collected about the file whose index (i.e. sys_file table entry) was just created.
AfterFileUpdatedInIndexEvent: Receives an array containing the information collected about the file whose index (i.e. sys_file table entry) was just updated.
AfterFileRemovedFromIndexEvent: Receives the uid of the file (i.e. sys_file table entry) which was deleted.
AfterFileMarkedAsMissingEvent: Receives the uid of the file (i.e. sys_file table entry) which was marked as missing.

`\TYPO3\CMS\Core\Resource\Index\MetaDataRepository`

EnrichFileMetaDataEvent: This event is dispatched after metadata has been retrieved for a given file. The event receives the metadata as an \ArrayObject instance.
AfterFileMetaDataCreatedEvent: Receives an array containing the metadata collected about the file just after it has been inserted into the sys_file_metadata table.
AfterFileMetaDataUpdatedEvent: This event is dispatched after metadata for a given file has been updated. The event receives the metadata as an array containing all metadata fields (and not just the updated ones).
AfterFileMetaDataDeletedEvent: Receives the uid of the file whose metadata has just been deleted.

`\TYPO3\CMS\Core\Resource\Service\FileProcessingService`

BeforeFileProcessingEvent: This event is dispatched before a file is processed. The event receives a reference to the processed file and to the original file (both as File instances), a string defining the type of task being executed and an array containing the configuration for that task.
AfterFileProcessingEvent: This event is dispatched after a file has been processed. The event receives a reference to the processed file and to the original file (both as File instances), a string defining the type of task being executed and an array containing the configuration for that task.

See the section about services for more information about this class.

`\TYPO3\CMS\Core\Utility\File\ExtendedFileUtility`

AfterFileCommandProcessedEvent: New in version 11.4

The event can be used to perform additional tasks for specific file commands. For example, trigger a custom indexer after a file has been uploaded.