[FFmpeg-trac] #7871(avformat:new): URLs with @ in path parse incorrectly

[FFmpeg]

#7871: URLs with @ in path parse incorrectly
----------------------------------+--------------------------------------
             Reporter:  sfan5     |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avformat  |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+--------------------------------------
 Summary of the bug:

 When parsing URLs that contain an @ in the path, segments of the path end
 up being "eaten" as they are considered part of userinfo.

 How to reproduce:
 {{{
 % ffprobe 'https://1liveuni-
 lh.akamaihd.net/i/1LIVE_HDS at 179577/master.m3u8'
 ffprobe version N-93683-g163bb087f8 Copyright (c) 2007-2019 the FFmpeg
 developers
   built with gcc 8.3.0 (GCC)
   configuration: --prefix=/usr --disable-debug --disable-static --enable-
 pic --enable-shared --enable-avresample --enable-gpl --enable-nonfree
 --enable-libass --enable-libbluray --enable-libcdio --enable-libfdk-aac
 --enable-fontconfig --enable-libfreetype --enable-libmp3lame --enable-
 nvenc --enable-openssl --enable-libopus --enable-libpulse --enable-
 libvorbis --enable-vdpau --disable-vaapi --enable-libvpx --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2
 --enable-libzimg
   libavutil      56. 26.100 / 56. 26.100
   libavcodec     58. 52.100 / 58. 52.100
   libavformat    58. 27.103 / 58. 27.103
   libavdevice    58.  7.100 / 58.  7.100
   libavfilter     7. 50.100 /  7. 50.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 [tcp @ 0x55846e2a5cc0] Connection to tcp://179577:443 failed: Invalid
 argument
 https://1liveuni-lh.akamaihd.net/i/1LIVE_HDS@179577/master.m3u8: Invalid
 argument
 }}}
 Here, FFmpeg ends up trying to open "https://179577/master.m3u8" with the
 username "1liveuni-lh.akamaihd.net/i/1LIVE_HDS", which is obviously
 incorrect.

 Further notes:
 This issue exists since commit dd06f022b07438d650c82255dff16908ba04244a,
 which was supposed to fix ticket #7816

 According to the specification
 https://tools.ietf.org/html/std66#appendix-A
 * the "userinfo" part of an URI is '''not''' allowed to contain a slash
 (as implemented by the commit above)
 * the "path" part of an URI may contain a literal @ so URLs like the one
 above are within the spec

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7871>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker