[FFmpeg-cvslog] avformat/httpauth: Add space after commas in HTTP/RTSP auth header

[Andrey Utkin]

ffmpeg | branch: release/2.5 | Andrey Utkin <andrey.utkin at corp.bluecherry.net> | Thu Oct  1 13:56:31 2015 +0300| [630ef0976615a6a6b9a1721a5733c9376e1e8fd5] | committer: Michael Niedermayer

avformat/httpauth: Add space after commas in HTTP/RTSP auth header

This fixes access to Grandstream cameras, which return 401 to ffmpeg
otherwise.
VLC sends Authorization: header with spaces between parameters, and it
is known to work with Grandstream devices and broad range of other HTTP
and RTSP servers, so author considers switching to such behaviour safe.
Just for record - RFC 2617 (HTTP Auth) does not specify the need in
spaces, so this is not a bug of FFmpeg.

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit fdb32838723effb4560a345013387ea37b85ff20)

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=630ef0976615a6a6b9a1721a5733c9376e1e8fd5
---

 libavformat/httpauth.c |   18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/libavformat/httpauth.c b/libavformat/httpauth.c
index dbe3eff..18cf36b 100644
--- a/libavformat/httpauth.c
+++ b/libavformat/httpauth.c
@@ -220,21 +220,21 @@ static char *make_digest_auth(HTTPAuthState *state, const char *username,
 
     /* TODO: Escape the quoted strings properly. */
     av_strlcatf(authstr, len, "username=\"%s\"",   username);
-    av_strlcatf(authstr, len, ",realm=\"%s\"",     state->realm);
-    av_strlcatf(authstr, len, ",nonce=\"%s\"",     digest->nonce);
-    av_strlcatf(authstr, len, ",uri=\"%s\"",       uri);
-    av_strlcatf(authstr, len, ",response=\"%s\"",  response);
+    av_strlcatf(authstr, len, ", realm=\"%s\"",     state->realm);
+    av_strlcatf(authstr, len, ", nonce=\"%s\"",     digest->nonce);
+    av_strlcatf(authstr, len, ", uri=\"%s\"",       uri);
+    av_strlcatf(authstr, len, ", response=\"%s\"",  response);
 
     // we are violating the RFC and use "" because all others seem to do that too.
     if (digest->algorithm[0])
-        av_strlcatf(authstr, len, ",algorithm=\"%s\"",  digest->algorithm);
+        av_strlcatf(authstr, len, ", algorithm=\"%s\"",  digest->algorithm);
 
     if (digest->opaque[0])
-        av_strlcatf(authstr, len, ",opaque=\"%s\"", digest->opaque);
+        av_strlcatf(authstr, len, ", opaque=\"%s\"", digest->opaque);
     if (digest->qop[0]) {
-        av_strlcatf(authstr, len, ",qop=\"%s\"",    digest->qop);
-        av_strlcatf(authstr, len, ",cnonce=\"%s\"", cnonce);
-        av_strlcatf(authstr, len, ",nc=%s",         nc);
+        av_strlcatf(authstr, len, ", qop=\"%s\"",    digest->qop);
+        av_strlcatf(authstr, len, ", cnonce=\"%s\"", cnonce);
+        av_strlcatf(authstr, len, ", nc=%s",         nc);
     }
 
     av_strlcatf(authstr, len, "\r\n");