File clean up after using CakeResponse::file()

I have a function that extracts a file from an archive, and streams it to the client via CakeResponse::file().

As a part of extracting the file from the archive, I've had to put it in a temporary file, and then pass that to CakeResponse::file().

Once this is done, I'd like to clean up the temporary file, however, I'm having trouble finding a good place to do it.

Currently, I'm setting a property on the controller so that I can work out what file I have to remove later.

I've tried using afterFilter on the controller, but this seems to remove the file before it starts getting streamed to the user.

The next spot might be in a Dispatch filter, but I've got no idea where to start, and if a dispatch filter has access to the controller.

Any pointers, please?

Regards

Reuben Helms

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