add front proxy authenticator

plugin/pkg/auth/authenticator/request/headerrequest/requestheader_test.go

@@ -0,0 +1,89 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package headerrequest
+
+import (
+	"net/http"
+	"reflect"
+	"testing"
+
+	"k8s.io/kubernetes/pkg/auth/user"
+)
+
+func TestRequestHeader(t *testing.T) {
+	testcases := map[string]struct {
+		nameHeaders    []string
+		requestHeaders http.Header
+
+		expectedUser user.Info
+		expectedOk   bool
+	}{
+		"empty": {},
+		"no match": {
+			nameHeaders: []string{"X-Remote-User"},
+		},
+		"match": {
+			nameHeaders:    []string{"X-Remote-User"},
+			requestHeaders: http.Header{"X-Remote-User": {"Bob"}},
+			expectedUser:   &user.DefaultInfo{Name: "Bob"},
+			expectedOk:     true,
+		},
+		"exact match": {
+			nameHeaders: []string{"X-Remote-User"},
+			requestHeaders: http.Header{
+				"Prefixed-X-Remote-User-With-Suffix": {"Bob"},
+				"X-Remote-User-With-Suffix":          {"Bob"},
+			},
+		},
+		"first match": {
+			nameHeaders: []string{
+				"X-Remote-User",
+				"A-Second-X-Remote-User",
+				"Another-X-Remote-User",
+			},
+			requestHeaders: http.Header{
+				"X-Remote-User":          {"", "First header, second value"},
+				"A-Second-X-Remote-User": {"Second header, first value", "Second header, second value"},
+				"Another-X-Remote-User":  {"Third header, first value"}},
+			expectedUser: &user.DefaultInfo{Name: "Second header, first value"},
+			expectedOk:   true,
+		},
+		"case-insensitive": {
+			nameHeaders:    []string{"x-REMOTE-user"},             // configured headers can be case-insensitive
+			requestHeaders: http.Header{"X-Remote-User": {"Bob"}}, // the parsed headers are normalized by the http package
+			expectedUser:   &user.DefaultInfo{Name: "Bob"},
+			expectedOk:     true,
+		},
+	}
+
+	for k, testcase := range testcases {
+		auth, err := New(testcase.nameHeaders)
+		if err != nil {
+			t.Fatal(err)
+		}
+		req := &http.Request{Header: testcase.requestHeaders}
+
+		user, ok, _ := auth.AuthenticateRequest(req)
+		if testcase.expectedOk != ok {
+			t.Errorf("%v: expected %v, got %v", k, testcase.expectedOk, ok)
+		}
+		if e, a := testcase.expectedUser, user; !reflect.DeepEqual(e, a) {
+			t.Errorf("%v: expected %#v, got %#v", k, e, a)
+
+		}
+	}
+}