[Feature Request] Login support for Xfinity On Campus users

[devarshar]

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[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2016.12.20
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[debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
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...
<end of log>

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Description of your issue, suggested solution and other information

Issue: College students have access to Xfinity channels through Xfinity On Campus. I have looked up the relevant pieces of code on youtube-dl, there exists no method or way to login to Xfinity online platforms (such as Comedy Central, FX Networks) on it.
Suggested Solution: Add support for this login method. On login pages, it is in under a div block with an id= xoc-select-box. There are a number of universities that are part of this program (which is listed under a dropdown in the same div block.
Additional Info: Look here for more details: Xfinity On Campus

[yan12125]

Any example for Xfinity channels?

[nektro]

National Geographic supports Xfinity On Campus
eg: https://www.nationalgeographic.com/tv/explorer/