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// Copyright (c) 2018 The truststore Authors. All rights reserved.
// Copyright (c) 2018 The mkcert Authors. All rights reserved.
package truststore
import (
"bytes"
"crypto/x509"
"fmt"
"os"
"os/exec"
"strings"
)
var (
// NSSProfile is the path of the Firefox profiles.
NSSProfile = os.Getenv("HOME") + "/.mozilla/firefox/*"
// CertutilInstallHelp is the command to run on linux to add NSS support.
CertutilInstallHelp = `apt install libnss3-tools" or "yum install nss-tools`
// SystemTrustFilename is the format used to name the root certificates.
SystemTrustFilename string
// SystemTrustCommand is the command used to update the system truststore.
SystemTrustCommand []string
)
func init() {
switch {
case pathExists("/etc/pki/ca-trust/source/anchors/"):
SystemTrustFilename = "/etc/pki/ca-trust/source/anchors/%s.pem"
SystemTrustCommand = []string{"update-ca-trust", "extract"}
case pathExists("/usr/local/share/ca-certificates/"):
SystemTrustFilename = "/usr/local/share/ca-certificates/%s.crt"
SystemTrustCommand = []string{"update-ca-certificates"}
case pathExists("/usr/share/pki/trust/anchors/"):
SystemTrustFilename = "/usr/share/pki/trust/anchors/%s.crt"
SystemTrustCommand = []string{"update-ca-certificates"}
case pathExists("/etc/ca-certificates/trust-source/anchors/"):
SystemTrustFilename = "/etc/ca-certificates/trust-source/anchors/%s.crt"
SystemTrustCommand = []string{"trust", "extract-compat"}
case pathExists("/etc/ssl/certs/"):
SystemTrustFilename = "/etc/ssl/certs/%s.crt"
SystemTrustCommand = []string{"trust", "extract-compat"}
}
if SystemTrustCommand != nil {
_, err := exec.LookPath(SystemTrustCommand[0])
if err != nil {
SystemTrustCommand = nil
}
}
}
func pathExists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func systemTrustFilename(cert *x509.Certificate) string {
return fmt.Sprintf(SystemTrustFilename, strings.ReplaceAll(uniqueName(cert), " ", "_"))
}
func installPlatform(filename string, cert *x509.Certificate) error {
if SystemTrustCommand == nil {
return ErrNotSupported
}
data, err := os.ReadFile(filename)
if err != nil {
return err
}
cmd := CommandWithSudo("tee", systemTrustFilename(cert))
cmd.Stdin = bytes.NewReader(data)
out, err := cmd.CombinedOutput()
if err != nil {
return NewCmdError(err, cmd, out)
}
cmd = CommandWithSudo(SystemTrustCommand...)
out, err = cmd.CombinedOutput()
if err != nil {
return NewCmdError(err, cmd, out)
}
debug("certificate installed properly in linux trusts")
return nil
}
func uninstallPlatform(filename string, cert *x509.Certificate) error {
if SystemTrustCommand == nil {
return ErrNotSupported
}
cmd := CommandWithSudo("rm", "-f", systemTrustFilename(cert))
out, err := cmd.CombinedOutput()
if err != nil {
return NewCmdError(err, cmd, out)
}
cmd = CommandWithSudo(SystemTrustCommand...)
out, err = cmd.CombinedOutput()
if err != nil {
return NewCmdError(err, cmd, out)
}
debug("certificate uninstalled properly from linux trusts")
return nil
}
func CommandWithSudo(cmd ...string) *exec.Cmd {
if _, err := exec.LookPath("sudo"); err != nil {
//nolint:gosec // tolerable risk necessary for function
return exec.Command(cmd[0], cmd[1:]...)
}
//nolint:gosec // tolerable risk necessary for function
return exec.Command("sudo", append([]string{"--"}, cmd...)...)
}
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