working commit

2026-03-13 19:02:42 +02:00
parent bebbf79c7a
commit 5c1da77f4c
1329 changed files with 314708 additions and 39 deletions
@@ -0,0 +1,160 @@
+/*
+Copyright The Helm Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package getter
+
+import (
+	"bytes"
+	"crypto/tls"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"sync"
+
+	"helm.sh/helm/v4/internal/tlsutil"
+	"helm.sh/helm/v4/internal/version"
+)
+
+// HTTPGetter is the default HTTP(/S) backend handler
+type HTTPGetter struct {
+	opts      getterOptions
+	transport *http.Transport
+	once      sync.Once
+}
+
+// Get performs a Get from repo.Getter and returns the body.
+func (g *HTTPGetter) Get(href string, options ...Option) (*bytes.Buffer, error) {
+	for _, opt := range options {
+		opt(&g.opts)
+	}
+	return g.get(href)
+}
+
+func (g *HTTPGetter) get(href string) (*bytes.Buffer, error) {
+	// Set a helm specific user agent so that a repo server and metrics can
+	// separate helm calls from other tools interacting with repos.
+	req, err := http.NewRequest(http.MethodGet, href, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if g.opts.acceptHeader != "" {
+		req.Header.Set("Accept", g.opts.acceptHeader)
+	}
+
+	req.Header.Set("User-Agent", version.GetUserAgent())
+	if g.opts.userAgent != "" {
+		req.Header.Set("User-Agent", g.opts.userAgent)
+	}
+
+	// Before setting the basic auth credentials, make sure the URL associated
+	// with the basic auth is the one being fetched.
+	u1, err := url.Parse(g.opts.url)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse getter URL: %w", err)
+	}
+	u2, err := url.Parse(href)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse URL getting from: %w", err)
+	}
+
+	// Host on URL (returned from url.Parse) contains the port if present.
+	// This check ensures credentials are not passed between different
+	// services on different ports.
+	if g.opts.passCredentialsAll || (u1.Scheme == u2.Scheme && u1.Host == u2.Host) {
+		if g.opts.username != "" && g.opts.password != "" {
+			req.SetBasicAuth(g.opts.username, g.opts.password)
+		}
+	}
+
+	client, err := g.httpClient()
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("failed to fetch %s : %s", href, resp.Status)
+	}
+
+	buf := bytes.NewBuffer(nil)
+	_, err = io.Copy(buf, resp.Body)
+	return buf, err
+}
+
+// NewHTTPGetter constructs a valid http/https client as a Getter
+func NewHTTPGetter(options ...Option) (Getter, error) {
+	var client HTTPGetter
+
+	for _, opt := range options {
+		opt(&client.opts)
+	}
+
+	return &client, nil
+}
+
+func (g *HTTPGetter) httpClient() (*http.Client, error) {
+	if g.opts.transport != nil {
+		return &http.Client{
+			Transport: g.opts.transport,
+			Timeout:   g.opts.timeout,
+		}, nil
+	}
+
+	g.once.Do(func() {
+		g.transport = &http.Transport{
+			DisableCompression: true,
+			Proxy:              http.ProxyFromEnvironment,
+			// Being nil would cause the tls.Config default to be used
+			// "NewTLSConfig" modifies an empty TLS config, not the default one
+			TLSClientConfig: &tls.Config{},
+		}
+	})
+
+	if (g.opts.certFile != "" && g.opts.keyFile != "") || g.opts.caFile != "" || g.opts.insecureSkipVerifyTLS {
+		tlsConf, err := tlsutil.NewTLSConfig(
+			tlsutil.WithInsecureSkipVerify(g.opts.insecureSkipVerifyTLS),
+			tlsutil.WithCertKeyPairFiles(g.opts.certFile, g.opts.keyFile),
+			tlsutil.WithCAFile(g.opts.caFile),
+		)
+		if err != nil {
+			return nil, fmt.Errorf("can't create TLS config for client: %w", err)
+		}
+
+		g.transport.TLSClientConfig = tlsConf
+	}
+
+	if g.opts.insecureSkipVerifyTLS {
+		if g.transport.TLSClientConfig == nil {
+			g.transport.TLSClientConfig = &tls.Config{
+				InsecureSkipVerify: true,
+			}
+		} else {
+			g.transport.TLSClientConfig.InsecureSkipVerify = true
+		}
+	}
+
+	client := &http.Client{
+		Transport: g.transport,
+		Timeout:   g.opts.timeout,
+	}
+
+	return client, nil
+}