| file_check_upload | includes/file.inc | |
| file_delete | includes/file.inc | Delete a file. |
| upload_munge_filename | modules/upload/upload.module | Munge the filename as needed for security purposes. |
| user_access | modules/user/user.module | Determine whether the user has a given privilege. |
| variable_get | includes/bootstrap.inc | Return a persistent variable. |
| _upload_image | modules/upload/upload.module | Check an upload, if it is an image, make sure it fits within the
maximum dimensions allowed. |
| _upload_prepare | modules/upload/upload.module | Save new uploads and attach them to the node object.
append file_previews to the node object as well. |