mirror of https://github.com/k3s-io/k3s
69 lines
2.2 KiB
Go
69 lines
2.2 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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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 handlers
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import (
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"net/http"
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/auth/authenticator"
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)
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// NewRequestAuthenticator creates an http handler that tries to authenticate the given request as a user, and then
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// stores any such user found onto the provided context for the request. If authentication fails or returns an error
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// the failed handler is used. On success, handler is invoked to serve the request.
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func NewRequestAuthenticator(mapper api.RequestContextMapper, auth authenticator.Request, failed http.Handler, handler http.Handler) (http.Handler, error) {
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return api.NewRequestContextFilter(
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mapper,
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http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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user, ok, err := auth.AuthenticateRequest(req)
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if err != nil || !ok {
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if err != nil {
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glog.Errorf("Unable to authenticate the request due to an error: %v", err)
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}
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failed.ServeHTTP(w, req)
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return
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}
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if ctx, ok := mapper.Get(req); ok {
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mapper.Update(req, api.WithUser(ctx, user))
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}
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handler.ServeHTTP(w, req)
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}),
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)
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}
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func Unauthorized(supportsBasicAuth bool) http.HandlerFunc {
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if supportsBasicAuth {
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return unauthorizedBasicAuth
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}
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return unauthorized
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}
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// unauthorizedBasicAuth serves an unauthorized message to clients.
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func unauthorizedBasicAuth(w http.ResponseWriter, req *http.Request) {
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w.Header().Set("WWW-Authenticate", `Basic realm="kubernetes-master"`)
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http.Error(w, "Unauthorized", http.StatusUnauthorized)
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}
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// unauthorized serves an unauthorized message to clients.
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func unauthorized(w http.ResponseWriter, req *http.Request) {
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http.Error(w, "Unauthorized", http.StatusUnauthorized)
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}
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