mirror of https://github.com/knative/caching.git
72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
/*
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Copyright 2020 The Knative 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 webhook
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"go.uber.org/zap"
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apixv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
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"knative.dev/pkg/logging"
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)
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// ConversionController provides the interface for different conversion controllers
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type ConversionController interface {
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// Path returns the path that this particular conversion controller serves on.
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Path() string
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// Convert is the callback which is invoked when an HTTPS request comes in on Path().
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Convert(context.Context, *apixv1beta1.ConversionRequest) *apixv1beta1.ConversionResponse
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}
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func conversionHandler(rootLogger *zap.SugaredLogger, stats StatsReporter, c ConversionController) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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logger := rootLogger
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logger.Infof("Webhook ServeHTTP request=%#v", r)
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var review apixv1beta1.ConversionReview
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if err := json.NewDecoder(r.Body).Decode(&review); err != nil {
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http.Error(w, fmt.Sprintf("could not decode body: %v", err), http.StatusBadRequest)
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return
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}
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logger = logger.With(
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zap.String("uid", string(review.Request.UID)),
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zap.String("desiredAPIVersion", review.Request.DesiredAPIVersion),
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)
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ctx := logging.WithLogger(r.Context(), logger)
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response := apixv1beta1.ConversionReview{
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Response: c.Convert(ctx, review.Request),
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}
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if err := json.NewEncoder(w).Encode(response); err != nil {
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http.Error(w, fmt.Sprintf("could not encode response: %v", err), http.StatusInternalServerError)
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return
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}
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// TODO(dprotaso) - figure out what metrics we want reported
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// if stats != nil {
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// // Only report valid requests
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// stats.ReportRequest(review.Request, response.Response, time.Since(ttStart))
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// }
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}
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}
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