Record saved filename in json

[BrianEnigma]

Feature request: When downloading an episode, record the actual on-disk filename that gets saved, and then attach that to the episode entry in the json data file.

Reasoning/Background:

I use podfox on a particular subscription-only RSS feed. It's presumably doing some server-side CGI and redirection gymnastics to ensure that I'm me and to make it more difficult for people to guess filenames on a CDN. But the practical upshot is that my feed.json has entries like this (the X's represent the lengths of the hex guids/tokens, without revealing the actual tokens):

"url": "https://sphinx.acast.com/p/open/s/xxxxxxxxxxxxxxxxxxxxxxxx/e/xxxxxxxxxxxxxxxxxxxxxxxx/media.mp3?tk=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&sig=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

And, once downloaded, filenames that look like this:

• bd486f1926feeeeb047f6e9de7778f73.mp3
• bddc170ae2c444054ed715c0d1d19804.mp3
• be57ffa60d51fb23be13b3030dd078da.mp3
• be5cb1f4471115732eb21dd651fe8c65.mp3
• be8c74711e6dcbd7b8125abba201713f.mp3
• bef9d1ed844c42bf52672fe418394fb3.mp3
• bf2b99bb2a175f17d5fddb67d3855543.mp3

The guids in the file names don't seem to correlate with anything in the URL. Because this is a large feed that goes back quite a few years in history, I have 1,201 mp3 files and no way to tell which matches a given episode. Ideally, the feed json would have some way to match episode to filename.

[BrianEnigma]

Looks like the the guid-looking filenames come from episodes deeper in this feed. The particular entry I posted about looks to be a dupe of #34 (media.mp3 constantly overwritten) but having the downloaded filename in the json (or, alternately, having predictable filenames) would nonetheless be useful to match the episode to the MP3.