| // Copyright 2015 The Vanadium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package util |
| |
| import ( |
| "fmt" |
| "os" |
| "os/exec" |
| "path/filepath" |
| "strings" |
| "time" |
| ) |
| |
| // WriteCertAndKey creates a certificate and private key for a given host and |
| // duration and writes them to cert.pem and key.pem in tmpdir. It returns the |
| // locations of the files, or an error if one is encountered. |
| func WriteCertAndKey(host string, duration time.Duration) (string, string, error) { |
| listCmd := exec.Command("go", "list", "-f", "{{.Dir}}", "crypto/tls") |
| output, err := listCmd.Output() |
| if err != nil { |
| return "", "", fmt.Errorf("%s failed: %v", strings.Join(listCmd.Args, " "), err) |
| } |
| tmpDir := os.TempDir() |
| generateCertFile := filepath.Join(strings.TrimSpace(string(output)), "generate_cert.go") |
| generateCertCmd := exec.Command("go", "run", generateCertFile, "--host", host, "--duration", duration.String()) |
| generateCertCmd.Dir = tmpDir |
| if output, err := generateCertCmd.CombinedOutput(); err != nil { |
| fmt.Fprintf(os.Stderr, "%v failed:\n%s\n", generateCertCmd.Args, output) |
| return "", "", fmt.Errorf("Could not generate key and cert: %v", err) |
| } |
| return filepath.Join(tmpDir, "cert.pem"), filepath.Join(tmpDir, "key.pem"), nil |
| } |
