mirror of
https://github.com/k3s-io/k3s.git
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95 lines
2.6 KiB
Go
95 lines
2.6 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 rawhttp
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/client-go/rest"
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)
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// RawPost uses the REST client to POST content
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func RawPost(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url, filename string) error {
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return raw(restClient, streams, url, filename, "POST")
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}
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// RawPut uses the REST client to PUT content
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func RawPut(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url, filename string) error {
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return raw(restClient, streams, url, filename, "PUT")
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}
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// RawGet uses the REST client to GET content
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func RawGet(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url string) error {
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return raw(restClient, streams, url, "", "GET")
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}
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// RawDelete uses the REST client to DELETE content
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func RawDelete(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url, filename string) error {
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return raw(restClient, streams, url, filename, "DELETE")
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}
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// raw makes a simple HTTP request to the provided path on the server using the default credentials.
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func raw(restClient *rest.RESTClient, streams genericclioptions.IOStreams, url, filename, requestType string) error {
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var data io.ReadCloser
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switch {
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case len(filename) == 0:
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data = ioutil.NopCloser(bytes.NewBuffer([]byte{}))
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case filename == "-":
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data = ioutil.NopCloser(streams.In)
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default:
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var err error
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data, err = os.Open(filename)
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if err != nil {
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return err
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}
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}
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var request *rest.Request
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switch requestType {
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case "GET":
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request = restClient.Get().RequestURI(url)
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case "PUT":
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request = restClient.Put().RequestURI(url).Body(data)
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case "POST":
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request = restClient.Post().RequestURI(url).Body(data)
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case "DELETE":
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request = restClient.Delete().RequestURI(url).Body(data)
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default:
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return fmt.Errorf("unknown requestType: %q", requestType)
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}
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stream, err := request.Stream()
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if err != nil {
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return err
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}
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defer stream.Close()
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_, err = io.Copy(streams.Out, stream)
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if err != nil && err != io.EOF {
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return err
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}
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return nil
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}
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