core: refactor http webclient part 17 #8529

[ngosang]

Print HTML in debug mode. Fix bugs in old implementation too

[ngosang]

@garfield69 @ilike2burnthing This is working. The only concern is I'm printing the binary responses too (eg .torrent files) because it's really hard to know if the content is binary or plain text. In my Linux this is working fine. Could you try this PR in Windows downloading a .torrent in debug mode? I tried with yourbittorrent indexer.
If this is working for you, you can merge.

[ngosang]

Wait

[ilike2burnthing]

Yea, working in Windows. Only side effect is:

WebClient(HttpWebClient2).GetResultAsync(Method: GET Url: https://yourbittorrent.com/down/29978989.torrent)
WebClient(HttpWebClient2): Returning OK => 23138 bytes
d8:announce43:udp://tracker.coppersurfer.tk:6969/announce13:announce-listll43:udp://tracker.coppersurfer.tk:6969/announceel49:udp://tracker.leechers-paradise.org:6969/announceel38:udp://tracker.cyberia.is:6969/announceel41:udp://tracker.iamhansen.xyz:2000/announceel35:udp://p4p.arenabg.com:1337/announceel32:udp://explodie.org:6969/announceel42:udp://tracker.opentrackr.org:1337/announceel40:udp://tracker.tiny-vps.com:6969/announceel37:udp://exodus.desync.com:6969/announceel41:udp://tracker.torrent.eu.org:451/announceel38:udp://tracker.moeking.me:6969/announceel39:udp://ipv4.tracker.harry.lu:80/announceel33:udp://open.stealth.si:80/announceel30:udp://9.rarbg.to:2710/announceel31:udp://opentor.org:2710/announceel48:udp://tracker.internetwarriors.net:1337/announceel49:udp://tracker.leechers-paradise.org:6969/announceel43:udp://tracker.coppersurfer.tk:6969/announceel42:udp://tracker.pirateparty.gr:6969/announceel38:udp://tracker.cyberia.is:6969/announceel35:udp://open.demonii.si:1337/announceel30:udp://open.stealth.si/announceel37:udp://exodus.desync.com:6969/announceel33:http://explodie.org:6969/announceel30:udp://9.rarbg.me:2740/announceel30:udp://9.rarbg.to:2790/announceee7:comment31:Torrent from yourbittorrent.com10:created by13:mktorrent 1.113:creation datei1600720043e4:infod5:filesld6:lengthi1125765616e4:pathl59:The.72nd.Annual.Primetime.Emmy.Awards.2020.WEB.h264-BAE.mkveed6:lengthi678e4:pathl42:[TGx]Downloaded from torrentgalaxy.to .txteed6:lengthi73e4:pathl59:the.72nd.annual.primetime.emmy.awards.2020.web.h264-bae.nfoeee4:name60:The.72nd.Annual.Primetime.Emmy.Awards.2020.WEB.h264-BAE[TGx]12:piece lengthi1048576e6:pieces21480:�Ie��[H�&�����	��U
�V�EZ��I�"�$^�|���Qe�uw��g������C�� �����sq�R��¦������N+�]���1��,������F�������Y�7����wN|��l��T����
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[...and on and on and on...]
Executing {FileResultType}, sending file with download name '{FileDownloadName}' ...
The file result has not been enabled for processing range requests. To enable it, set the property 'EnableRangeProcessing' on the result to 'true'.
Response compression is not enabled for the Content-Type '{header}'.

[ngosang]

The only concern is I'm printing the binary responses too (eg .torrent files) because it's really hard to know if the content is binary or plain text.

Fixed. Do some tests and merge.

[ilike2burnthing]

Works here

[garfield69]

Fantastic improvement to the debug html dump
at last I get to see output from the post to a thankyou before download!
tested on win10home.