71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
/*
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Copyright Docker attest-provider 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 utils
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import (
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"encoding/json"
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"net/http"
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"github.com/open-policy-agent/frameworks/constraint/pkg/externaldata"
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"k8s.io/klog/v2"
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)
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const (
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apiVersion = "externaldata.gatekeeper.sh/v1beta1"
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kind = "ProviderResponse"
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)
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func GatekeeperResponse(results *[]externaldata.Item, systemErr string) []byte {
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response := externaldata.ProviderResponse{
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APIVersion: apiVersion,
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Kind: kind,
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Response: externaldata.Response{
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Idempotent: true, // mutation requires idempotent results
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},
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}
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if results != nil {
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response.Response.Items = *results
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} else {
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response.Response.SystemError = systemErr
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}
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body, err := json.Marshal(response)
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if err != nil {
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klog.ErrorS(err, "unable to marshal response")
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panic(err)
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}
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return body
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}
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func GatekeeperError(systemErr string) []byte {
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return GatekeeperResponse(nil, systemErr)
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}
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// sendResponse sends back the response to Gatekeeper.
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func SendResponse(results *[]externaldata.Item, systemErr string, w http.ResponseWriter) {
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body := GatekeeperResponse(results, systemErr)
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klog.InfoS("sending response", "response", string(body))
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w.Header().Set("Content-Type", "application/json")
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_, err := w.Write(body)
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if err != nil {
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klog.ErrorS(err, "unable to write response")
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return
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}
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}
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