52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
/*
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Copyright 2023 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 proxy
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import (
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"net/http"
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"k8s.io/klog/v2"
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)
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// translatingHandler wraps the delegate handler, implementing the
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// http.Handler interface. The delegate handles all requests unless
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// the request satisfies the passed "shouldTranslate" function
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// (currently only for WebSocket/V5 request), in which case the translator
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// handles the request.
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type translatingHandler struct {
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delegate http.Handler
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translator http.Handler
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shouldTranslate func(*http.Request) bool
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}
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func NewTranslatingHandler(delegate http.Handler, translator http.Handler, shouldTranslate func(*http.Request) bool) http.Handler {
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return &translatingHandler{
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delegate: delegate,
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translator: translator,
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shouldTranslate: shouldTranslate,
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}
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}
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func (t *translatingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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if t.shouldTranslate(req) {
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klog.V(4).Infof("request handled by translator proxy")
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t.translator.ServeHTTP(w, req)
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return
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}
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t.delegate.ServeHTTP(w, req)
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}
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