github.com/google/martian/v3@v3.3.3/martianhttp/authority_handler.go (about) 1 // Copyright 2015 Google Inc. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package martianhttp 16 17 import ( 18 "crypto/x509" 19 "encoding/pem" 20 "net/http" 21 ) 22 23 type authorityHandler struct { 24 cert []byte 25 } 26 27 // NewAuthorityHandler returns an http.Handler that will present the client 28 // with the CA certificate to use in browser. 29 func NewAuthorityHandler(ca *x509.Certificate) http.Handler { 30 return &authorityHandler{ 31 cert: pem.EncodeToMemory(&pem.Block{ 32 Type: "CERTIFICATE", 33 Bytes: ca.Raw, 34 }), 35 } 36 } 37 38 // ServeHTTP writes the CA certificate in PEM format to the client. 39 func (h *authorityHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) { 40 rw.Header().Set("Content-Type", "application/x-x509-ca-cert") 41 rw.Write(h.cert) 42 }