mirror of https://github.com/kubernetes/kops.git
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package server
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import (
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"fmt"
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"net/http"
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"k8s.io/kops/node-authorizer/pkg/utils"
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"go.uber.org/zap"
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)
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// recovery is responsible for ensuring we don't exit on a panic
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func recovery(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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defer func() {
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if err := recover(); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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utils.Logger.Error("failed to handle request, threw exception",
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zap.String("error", fmt.Sprintf("%v", err)))
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}
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}()
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next.ServeHTTP(w, req)
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})
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}
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// authorized is responsible for validating the client certificate
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func authorized(next http.HandlerFunc, commonName string, requireAuth bool) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if requireAuth {
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found := func() bool {
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for _, x := range r.TLS.PeerCertificates {
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if x.Subject.CommonName == commonName {
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return true
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}
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}
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return false
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}()
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if !found {
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utils.Logger.Error("invalid client certificate",
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zap.String("client", r.RemoteAddr))
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w.WriteHeader(http.StatusForbidden)
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return
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}
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}
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next.ServeHTTP(w, r)
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})
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}
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