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main.go
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main.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// Forked from github.com/certifi/gocertifi <https://git.io/JJjmG>.
//
// This script should not be invoked directly, rather it should be
// executed by running go generate ./... from toplevel dir.
package main
import (
"context"
"crypto/x509"
"log"
"net/http"
"os"
"strings"
"text/template"
"time"
"github.com/ooni/probe-cli/v3/internal/netxlite"
)
var tmpl = template.Must(template.New("").Parse(`// Code generated by go generate; DO NOT EDIT.
// {{ .Timestamp }}
// {{ .URL }}
package netxlite
//{{ .GoGenerate }} go run ./internal/gencertifi/ "{{ .URL }}"
const pemcerts string = ` + "`" + `
{{ .Bundle }}
` + "`" + `
`))
func main() {
if len(os.Args) != 2 || !strings.HasPrefix(os.Args[1], "https://") {
log.Fatal("usage: go run ./generator/ <url>")
}
url := os.Args[1]
resp, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
if resp.StatusCode != 200 {
log.Fatal("expected 200, got", resp.StatusCode)
}
defer resp.Body.Close()
bundle, err := netxlite.ReadAllContext(context.Background(), resp.Body)
if err != nil {
log.Fatal(err)
}
pool := x509.NewCertPool()
if !pool.AppendCertsFromPEM(bundle) {
log.Fatalf("can't parse certificates from %s", url)
}
fp, err := os.Create("certifi.go")
if err != nil {
log.Fatal(err)
}
err = tmpl.Execute(fp, struct {
Bundle string
GoGenerate string
Timestamp time.Time
URL string
}{
Bundle: string(bundle),
GoGenerate: "go:generate",
Timestamp: time.Now(),
URL: url,
})
if err != nil {
log.Fatal(err)
}
if err := fp.Close(); err != nil {
log.Fatal(err)
}
}