问题
I am hosting a small fileserver, where users can upload documents from all around the world.
Due to problems in encoding (see otherquestion), I am asking myself if I should disallow users to upload (and on the other hand download) files not supported by CP1252 charset?
or otherwise; is it senseful to allow users upload documents with arabian or chinese letters in their filenames?
PS: they download the same file some time later (and it should have the same filename as uploaded)
回答1:
You should be storing the files on disk using a randomly generated name, or let the file name be based on a hash of the file contents (good for deduplicating storage as well). You can save the original file name as meta data in a database together with all other meta data about the file (who uploaded it and things like that). Then you serve the file again using a PHP script which sets the original file name from the database in an HTTP header. This way you:
- don't need to worry about file name sanitisation or duplication
- file system encoding issues
- storage duplication (if using a hash)
来源：https://stackoverflow.com/questions/23083685/allow-utf-8-encoded-filenames-on-file-webserver