[ruby/webrick] Support literal IPv6 addresses in X-Forwarded-Host

https://github.com/ruby/webrick/commit/6b6990ec81

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/webrick/httprequest.rb b/lib/webrick/httprequest.rb
index e402099a30..87dc879175 100644
--- a/lib/webrick/httprequest.rb
+++ b/lib/webrick/httprequest.rb
@@ -611,7 +611,12 @@ module WEBrick
       end
       if host_port = self["x-forwarded-host"]
         host_port = host_port.split(",", 2).first
-        @forwarded_host, tmp = host_port.split(":", 2)
+        if host_port =~ /\A(\[[0-9a-fA-F:]+\])(?::(\d+))?\z/
+          @forwarded_host = $1
+          tmp = $2
+        else
+          @forwarded_host, tmp = host_port.split(":", 2)
+        end
         @forwarded_port = (tmp || (@forwarded_proto == "https" ? 443 : 80)).to_i
       end
       if addrs = self["x-forwarded-for"]