Cleanup: put middleware helper functions in pkgs (#245)

Move all (almost all) Go files in middleware into their
own packages. This makes for better naming and discoverability.

Lot of changes elsewhere to make this change.

The middleware.State was renamed to request.Request which is better,
but still does not cover all use-cases. It was also moved out middleware
because it is used by `dnsserver` as well.

A pkg/dnsutil packages was added for shared, handy, dns util functions.

All normalize functions are now put in normalize.go

1 files changed, 0 insertions, 27 deletions

diff --git a/middleware/zone.go b/middleware/zone.go
deleted file mode 100644
index 0f3cd0edc..000000000
--- a/middleware/zone.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package middleware
-
-import "github.com/miekg/dns"
-
-type Zones []string
-
-// Matches checks is qname is a subdomain of any of the zones in z.  The match
-// will return the most specific zones that matches other. The empty string
-// signals a not found condition.
-func (z Zones) Matches(qname string) string {
-	zone := ""
-	for _, zname := range z {
-		if dns.IsSubDomain(zname, qname) {
-			if len(zname) > len(zone) {
-				zone = zname
-			}
-		}
-	}
-	return zone
-}
-
-// FullyQualify fully qualifies all zones in z.
-func (z Zones) FullyQualify() {
-	for i, _ := range z {
-		z[i] = dns.Fqdn(z[i])
-	}
-}