[AENetworks] Update extractor for the current site(s)

[kevinoconnor7]

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What is the purpose of your pull request?

• Bug fix
• Improvement
• New extractor
• New feature

---

Description of your pull request and other information

This gets the AENetworks extractor back into a working state. The highlights are:

• Support for the play subdomain that the content is now hosted on
• Extract ThePlatform URLs from the GraphQL endpoint they now use
• Properly extract video information from the updates made to the non-play subdomain sites.
• Properly extract the series name, season number, and episode numbers
• Added more explicit error messages for when extraction fails

Fixes #23363

[yemaozitw]

Works for shows but not specials like:

https://play.aetv.com/specials/voices-magnified-locked-up-in-america/full-special
https://play.aetv.com/specials/biography-i-want-my-mtv-2/full-special
https://play.aetv.com/specials/the-nine-lives-of-ozzy-osbourne/full-special

These get the following errors:

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', '--hls-prefer-native', '--cookies', 'cookies.txt', '--fragment-retries', '35', '--retries', '35', '--all-subs', '--sub-format', 'dfxp', 'https://play.aetv.com/specials/voices-magnified-locked-up-in-america/full-special']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.09.20
[debug] Python version 3.7.3 (CPython) - Linux-4.19.0-10-amd64-x86_64-with-debian-10.6
[debug] exe versions: ffmpeg 4.1.6-1, ffprobe 4.1.6-1, rtmpdump 2.4
[debug] Proxy map: {}
[aenetworks] voices-magnified-locked-up-in-america: Downloading webpage
WARNING: unable to extract videoId; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
[aenetworks] Downloading JSON metadata
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (caused by <HTTPError 400: 'Bad Request'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
File "/home/ymz/bin/youtube-dl/youtube_dl/extractor/common.py", line 632, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/home/ymz/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2238, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python3.7/urllib/request.py", line 531, in open
response = meth(req, response)
File "/usr/lib/python3.7/urllib/request.py", line 641, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python3.7/urllib/request.py", line 569, in error
return self._call_chain(*args)
File "/usr/lib/python3.7/urllib/request.py", line 503, in _call_chain
result = func(*args)
File "/usr/lib/python3.7/urllib/request.py", line 649, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)

[kevinoconnor7]

Hmm yeah specials are weird. They don't have the video ID in the normal spot and the only place I can find it on the page is within a giant JSON blob. Unfortunately it's mixed in with others. I'll need to dig into the JSON a bit and compare a few samples to see if I can find a reliable way to find the correct one.

[yemaozitw]

If specials are too difficult then might as well go forward with this PR since it fixes most of the problem.

[rredford6]

@kevinoconnor7 Does the GraphQL server provide different playlists? There's an issue with ads getting injected: #26047

[kevinoconnor7]

@rredford6 Not that I'm aware, though I'm honestly not super familiar with the entire The Platform flow. When I wrote this PR I mostly tried to extract the data that had previously been used (i.e. getting the public The Platform URL).

[merval]

Looks good! Nice work. Was able to successfully download an episode