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Title Object type File name Summary
hook_filetransfer_info function core/lib/Drupal/Core/File/file.api.php Register information about FileTransfer classes provided by a module.
hook_filetransfer_info_alter function core/lib/Drupal/Core/File/file.api.php Alter the FileTransfer class registry.
hook_file_copy function core/modules/file/file.api.php Respond to a file that has been copied.
hook_file_download function core/lib/Drupal/Core/File/file.api.php Control access to private file downloads and specify HTTP headers.
hook_file_mimetype_mapping_alter function core/lib/Drupal/Core/File/file.api.php Alter MIME type mappings used to determine MIME type from a file extension.
hook_file_move function core/modules/file/file.api.php Respond to a file that has been moved.
hook_file_url_alter function core/lib/Drupal/Core/File/file.api.php Alter the URL to a file.
hook_file_validate function core/modules/file/file.api.php Check that files meet a given criteria.

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