Case insensitive host rule

Gopkg.lock

@@ -291,7 +291,7 @@
   branch = "master"
   name = "github.com/containous/mux"
   packages = ["."]
-  revision = "06ccd3e75091eb659b1d720cda0e16bc7057954c"
+  revision = "c33f32e268983f989290677351b871b65da75ba5"
 
 [[projects]]
   name = "github.com/containous/staert"
@@ -819,6 +819,7 @@
   revision = "9b66602d496a139e4722bdde32f0f1ac1c12d4a8"
 
 [[projects]]
+  branch = "master"
   name = "github.com/jjcollinge/servicefabric"
   packages = ["."]
   revision = "8eebe170fa1ba25d3dfb928b3f86a7313b13b9fe"

rules/rules.go

@@ -53,10 +53,10 @@ func (r *Rules) host(hosts ...string) *mux.Route {
 	})
 }
 
-func (r *Rules) hostRegexp(hosts ...string) *mux.Route {
+func (r *Rules) hostRegexp(hostPatterns ...string) *mux.Route {
 	router := r.Route.Route.Subrouter()
-	for _, host := range hosts {
+	for _, hostPattern := range hostPatterns {
-		router.Host(strings.ToLower(host))
+		router.Host(hostPattern)
 	}
 	return r.Route.Route
 }

rules/rules_test.go

@@ -195,6 +195,39 @@ func TestHostRegexp(t *testing.T) {
 				"http://barcom":      false,
 			},
 		},
+		{
+			desc:    "regex insensitive",
+			hostExp: "{dummy:[A-Za-z-]+\\.bar\\.com}",
+			urls: map[string]bool{
+				"http://FOO.bar.com": true,
+				"http://foo.bar.com": true,
+				"http://fooubar.com": false,
+				"http://barucom":     false,
+				"http://barcom":      false,
+			},
+		},
+		{
+			desc:    "insensitive host",
+			hostExp: "{dummy:[a-z-]+\\.bar\\.com}",
+			urls: map[string]bool{
+				"http://FOO.bar.com": true,
+				"http://foo.bar.com": true,
+				"http://fooubar.com": false,
+				"http://barucom":     false,
+				"http://barcom":      false,
+			},
+		},
+		{
+			desc:    "insensitive host simple",
+			hostExp: "foo.bar.com",
+			urls: map[string]bool{
+				"http://FOO.bar.com": true,
+				"http://foo.bar.com": true,
+				"http://fooubar.com": false,
+				"http://barucom":     false,
+				"http://barcom":      false,
+			},
+		},
 	}
 
 	for _, test := range testCases {
@@ -212,7 +245,7 @@ func TestHostRegexp(t *testing.T) {
 
 			for testURL, match := range test.urls {
 				req := testhelpers.MustNewRequest(http.MethodGet, testURL, nil)
-				assert.Equal(t, match, rt.Match(req, &mux.RouteMatch{}))
+				assert.Equal(t, match, rt.Match(req, &mux.RouteMatch{}), testURL)
 			}
 		})
 	}

vendor/github.com/containous/mux/regexp.go

@@ -53,6 +53,12 @@ func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash,
 	varsN := make([]string, len(idxs)/2)
 	varsR := make([]*regexp.Regexp, len(idxs)/2)
 	pattern := bytes.NewBufferString("")
+
+	// Host matching is case insensitive
+	if matchHost {
+		fmt.Fprint(pattern, "(?i)")
+	}
+
 	pattern.WriteByte('^')
 	reverse := bytes.NewBufferString("")
 	var end int