Follow Refresh: Headers in Snoopy

[simsmaster]

The Internet Information Server (IIS) sends back a "Refresh:0;URL" Header instead of the normal "Location:" Header.
In a plugin, I use Snoopy to fetch a page, and it does not follow a redirection via Refresh, witch brakes my plugin on IIS Servers.
I know Snoopy is deprecated, but I have some troubles with the HTTP API, so I prefer Snoopy.

[peaceablewhale]

Should have been fixed in #10187

[simsmaster]

That duplicate is about the headers WP prints out. I´m talking about snoopy, while fetching a non-WP site. The bug is in Snoopy witch does not handle the redirection.

[simsmaster]

A quick fix:
Line 867 must be

if(preg_match("/^(Location:|URI:|Refresh:)/i",$currentHeader))

and line 870 must be

preg_match("/^(Location:|URI:|Refresh:[ ]+[0-9]+;[ ]*url=)[ ]*(.*)/i",chop($currentHeader),$matches);

Both in wp-include/class-snoopy.php. I´m not really good at this regex stuff, but it works for me...

[nacin]

Simple fix: Don't use Snoopy. It's deprecated.