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116 lines
3.0 KiB
116 lines
3.0 KiB
/*
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Copyright The Helm 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 getter
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import (
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"bytes"
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"io"
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"net/http"
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"github.com/pkg/errors"
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"helm.sh/helm/pkg/tlsutil"
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"helm.sh/helm/pkg/urlutil"
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)
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// HTTPGetter is the efault HTTP(/S) backend handler
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type HTTPGetter struct {
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client *http.Client
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username string
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password string
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userAgent string
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}
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// SetCredentials sets the credentials for the getter
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func (g *HTTPGetter) SetCredentials(username, password string) {
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g.username = username
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g.password = password
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}
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// SetUserAgent sets the HTTP User-Agent for the getter
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func (g *HTTPGetter) SetUserAgent(userAgent string) {
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g.userAgent = userAgent
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}
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//Get performs a Get from repo.Getter and returns the body.
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func (g *HTTPGetter) Get(href string) (*bytes.Buffer, error) {
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return g.get(href)
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}
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func (g *HTTPGetter) get(href string) (*bytes.Buffer, error) {
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buf := bytes.NewBuffer(nil)
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// Set a helm specific user agent so that a repo server and metrics can
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// separate helm calls from other tools interacting with repos.
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req, err := http.NewRequest("GET", href, nil)
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if err != nil {
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return buf, err
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}
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// req.Header.Set("User-Agent", "Helm/"+strings.TrimPrefix(version.GetVersion(), "v"))
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if g.userAgent != "" {
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req.Header.Set("User-Agent", g.userAgent)
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}
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if g.username != "" && g.password != "" {
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req.SetBasicAuth(g.username, g.password)
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}
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resp, err := g.client.Do(req)
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if err != nil {
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return buf, err
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}
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if resp.StatusCode != 200 {
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return buf, errors.Errorf("failed to fetch %s : %s", href, resp.Status)
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}
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_, err = io.Copy(buf, resp.Body)
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resp.Body.Close()
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return buf, err
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}
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// newHTTPGetter constructs a valid http/https client as Getter
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func newHTTPGetter(URL, CertFile, KeyFile, CAFile string) (Getter, error) {
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return NewHTTPGetter(URL, CertFile, KeyFile, CAFile)
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}
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// NewHTTPGetter constructs a valid http/https client as HTTPGetter
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func NewHTTPGetter(URL, CertFile, KeyFile, CAFile string) (*HTTPGetter, error) {
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var client HTTPGetter
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if CertFile != "" && KeyFile != "" {
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tlsConf, err := tlsutil.NewClientTLS(CertFile, KeyFile, CAFile)
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if err != nil {
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return &client, errors.Wrap(err, "can't create TLS config for client")
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}
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tlsConf.BuildNameToCertificate()
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sni, err := urlutil.ExtractHostname(URL)
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if err != nil {
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return &client, err
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}
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tlsConf.ServerName = sni
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client.client = &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: tlsConf,
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Proxy: http.ProxyFromEnvironment,
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},
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}
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} else {
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client.client = http.DefaultClient
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}
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return &client, nil
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}
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