Bump google.golang.org/api

vendor/github.com/google/martian/header/header_matcher.go

@@ -0,0 +1,75 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// 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 header
+
+import (
+	"net/http"
+
+	"github.com/google/martian/proxyutil"
+)
+
+// Matcher is a conditonal evalutor of request or
+// response headers to be used in structs that take conditions.
+type Matcher struct {
+	name, value string
+}
+
+// NewMatcher builds a new header matcher.
+func NewMatcher(name, value string) *Matcher {
+	return &Matcher{
+		name:  name,
+		value: value,
+	}
+}
+
+// MatchRequest evaluates a request and returns whether or not
+// the request contains a header that matches the provided name
+// and value.
+func (m *Matcher) MatchRequest(req *http.Request) bool {
+	h := proxyutil.RequestHeader(req)
+
+	vs, ok := h.All(m.name)
+	if !ok {
+		return false
+	}
+
+	for _, v := range vs {
+		if v == m.value {
+			return true
+		}
+	}
+
+	return false
+}
+
+// MatchResponse evaluates a response and returns whether or not
+// the response contains a header that matches the provided name
+// and value.
+func (m *Matcher) MatchResponse(res *http.Response) bool {
+	h := proxyutil.ResponseHeader(res)
+
+	vs, ok := h.All(m.name)
+	if !ok {
+		return false
+	}
+
+	for _, v := range vs {
+		if v == m.value {
+			return true
+		}
+	}
+
+	return false
+}