mirror of https://github.com/kubernetes/kops.git
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
/*
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Copyright 2020 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 util
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import (
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"fmt"
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"io"
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"net/http"
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"k8s.io/klog/v2"
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)
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var httpTransport *http.Transport
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func init() {
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httpTransport = new(http.Transport)
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httpTransport.Proxy = http.ProxyFromEnvironment
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httpTransport.RegisterProtocol("file", http.NewFileTransport(http.Dir("/")))
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}
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// HTTPGETWithHeaders writes the response of an HTTP GET request
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func HTTPGETWithHeaders(url string, headers map[string]string, writer io.Writer) error {
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klog.Infof("curl %s", url)
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c := &http.Client{Transport: httpTransport}
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return err
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}
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for k, v := range headers {
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req.Header.Add(k, v)
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}
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r, err := c.Do(req)
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if err != nil {
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return err
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}
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defer r.Body.Close()
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if r.StatusCode >= 400 {
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return fmt.Errorf("%v returned %d", url, r.StatusCode)
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}
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_, err = io.Copy(writer, r.Body)
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if err != nil {
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return err
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}
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return nil
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}
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