[FFmpeg-trac] #5786(avformat:new): httpauth.c has a case-sensitive header check for 'WWW-Authenticate'

[FFmpeg]

#5786: httpauth.c has a case-sensitive header check for 'WWW-Authenticate'
-------------------------------------+-------------------------------------
             Reporter:  NTAuthority  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avformat     |                  Version:  git-
             Keywords:  http         |  master
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavformat/httpauth.c;h=18cf36bcfece25c4f86117f444212c2608fd4bce;hb=refs/heads/master#l93

 The HTTP specification (RFC 7230) claims the following:

 {{{
 3.2.  Header Fields

    Each header field consists of a case-insensitive field name followed
    by a colon (":"), optional leading whitespace, the field value, and
    optional trailing whitespace.
 }}}

 Verbose output from an older version w/ ffprobe -v debug:

 {{{
 [http @ 0000000004d20ac0] request: GET /mediafile HTTP/1.1
 User-Agent: Lavf/56.9.100
 Accept: */*
 Range: bytes=0-
 Connection: close
 Host: hostname
 Icy-MetaData: 1


 [http @ 0000000004d20ac0] header='HTTP/1.1 401 Unauthorized'
 [http @ 0000000004d20ac0] http_code=401
 [http @ 0000000004d20ac0] header='Content-Type: text/plain; charset=utf-8'
 [http @ 0000000004d20ac0] header='Server: Caddy'
 [http @ 0000000004d20ac0] header='Www-Authenticate: Basic
 realm="Restricted"'
 [http @ 0000000004d20ac0] header='X-Content-Type-Options: nosniff'
 [http @ 0000000004d20ac0] header='Date: Sun, 21 Aug 2016 04:41:54 GMT'
 [http @ 0000000004d20ac0] header='Content-Length: 17'
 [http @ 0000000004d20ac0] header='Connection: close'
 [http @ 0000000004d20ac0] header=''

 http://url/: Input/output error
 }}}

 A more current version:

 {{{
 [http @ 0000000002583e00] request: GET /mediafile HTTP/1.1
 User-Agent: Lavf/57.47.101
 Accept: */*
 Range: bytes=0-
 Connection: close
 Host: hostname
 Icy-MetaData: 1


 http://url/: Server returned 401 Unauthorized (authorization failed)
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5786>
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