ProxyError related issues?

[ryanjgillies]

Checklist

• This is a bug report.
• This is a feature request.
• This is a plugin (improvement) request.
• I have read the contribution guidelines.

Description

I'm receiving a number of proxy related errors when trying to use the BBC iPlayer and TVPlayer.com plugins, as follows:

streamlink http://www.bbc.co.uk/iplayer/live/bbcone best --config /home/manager/streamlink.cfg -l debug
[cli][info] Found matching plugin bbciplayer for URL http://www.bbc.co.uk/iplayer/live/bbcone
[plugin.bbciplayer][info] A TV License is required to watch BBC iPlayer streams, see the BBC website for more information: https://www.bbc.co.uk/iplayer/help/tvlicence
error: Unable to open URL: https://session.bbc.co.uk/session?ptrt=http%3A%2F%2Fwww.bbc.co.uk%2Fiplayer%2Flive%2Fbbcone (HTTPSConnectionPool(host='session.bbc.co.uk', port=443): Max retries exceeded with url: /session?ptrt=http%3A%2F%2Fwww.bbc.co.uk%2Fiplayer%2Flive%2Fbbcone&context=tvandiplayer&userOrigin=tvandiplayer (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response',))))

streamlink https://tvplayer.com/watch/channel4 best --config /home/manager/streamlink.cfg -l debug
[cli][info] Found matching plugin tvplayer for URL https://tvplayer.com/watch/channel4
error: Unable to open URL: https://tvplayer.com/account/login (HTTPSConnectionPool(host='tvplayer.com', port=443): Max retries exceeded with url: /account/login (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response',))))

My config file is as follows:

http-proxy=http://user:password@uk97.nordvpn.com
https-proxy=https://user:password@uk97.nordvpn.com
hls-segment-threads=5
hds-segment-threads=5
bbciplayer-username=email@gmail.com
bbciplayer-password=password
tvplayer-email=email@gmail.com
tvplayer-password=password

Expected / Actual behavior

I've never had the BBC iPlayer plugin work for me - previously the message about a tv license prevented me from viewing, although now the ProxyError has appeared after it.

That said, the following command for BBC One has always worked, and still does:
streamlink "hds://a.files.bbci.co.uk/media/live/manifesto/audio_video/simulcast/hds/uk/pc/llnw/bbc_one_hd.f4m" best --config /home/manager/streamlink.cfg
So its seemingly not my proxy server that's causing an issue, rather something relating to the remote connection.

As mentioned in #1228 I had a version issues which I've since resolved, and prior to this error I was receiving "BadStatusLine" errors when using Python2. I've followed @gravyboat 's guidance there on switching to python3, and this is the result.

Has anyone else encountered errors similar to this? What can I do to diagnose the problem?

Reproduction steps / Explicit stream URLs to test

1. http://www.bbc.co.uk/iplayer/live/bbcone
2. https://tvplayer.com/watch/channel4

Environment details

Operating system and version: Lubuntu 16.04
Streamlink and Python version: Streamlink 0.8.1 / Python 3.5.2

[gravyboat]

Looks to me like you you aren't establishing the connection properly: Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response',)) I never use the proxy option, maybe try passing it directly on with the command to test and wrap it in quotes. You may also want to use the debug -l debug logging to see if that provides more info.

[ryanjgillies]

I have now resolved this problem; it was never a streamlink problem in the first place.

To expand on how I figured it out in case anyone has this error, it was indeed a proxy problem as the error description suggested Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response',))

After reading that this could possibly be arising due to HTTPS connections I decided to debug my way line by line through the BBC iPlayer plugin, and sure enough it was the http.get request on Line 110 that was throwing the error - the only line (as far as I can tell) that uses a https connection in the plugin.

At first I tried modifying the request to include useragent as the aforementioned stack answer suggested, but that had no effect.

I decided to look again at my proxy settings and realised that for NordVPN I was using a http url for standard proxy and https url for the secure proxy. It was then I realised that I'm using a regular NordVPN proxy (for greater speed), not a secure one. I changed the https-proxy url to a standard http address and sure enough, the problem went away.

So the lesson here is partly that if you receive this error its probably because of your https-proxy settings, but mostly that you shouldn't doubt the streamlink team!

Thanks guys.