Add filter to ban offline download servers of Xunlei, Baidu etc.

[KozakaiAya]

Recently, I encountered several clients who announce themselves as 'libtorrent 1.1.x' or '1.0.x'. I was really curious about them because I have never seen such clients before. However, after comparing their IP to a known offline download server list, I found that most of them are from Xunlei.
So I suggest that the clients who announce them as LTxxxx with Chinese IP should be banned in the enhanced version of qBittorrent.

[c0re100]

Thanks for your information.
The next enhanced version of qBittorrent will process this filter file on start-up.
The filter file will be installed on the same path with qBittorrent, it can be replaced yourself if the filter file update released.

[KozakaiAya]

Is it a little bit inappropriate to put the ipfilter.dat under /usr/bin or /usr/local/bin?
Personally speaking, I feel that ~/.config/qBittorrent is more reasonable for this file.

Anyway, thank you for your effort.

[c0re100]

Yes, qB will identify your OS first.
Windows: parse ./ipfilter.dat
Linux/Mac: parse ~/.config/qBittorrent/ipfilter.dat

[kkwong7878]

師兄Good👍