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package rootcerts
import (
"crypto/x509"
"os/exec"
"path"
"github.com/mitchellh/go-homedir"
)
// LoadSystemCAs has special behavior on Darwin systems to work around
func LoadSystemCAs() (*x509.CertPool, error) {
pool := x509.NewCertPool()
for _, keychain := range certKeychains() {
err := addCertsFromKeychain(pool, keychain)
if err != nil {
return nil, err
}
}
return pool, nil
}
func addCertsFromKeychain(pool *x509.CertPool, keychain string) error {
cmd := exec.Command("/usr/bin/security", "find-certificate", "-a", "-p", keychain)
data, err := cmd.Output()
if err != nil {
return err
}
pool.AppendCertsFromPEM(data)
return nil
}
func certKeychains() []string {
keychains := []string{
"/System/Library/Keychains/SystemRootCertificates.keychain",
"/Library/Keychains/System.keychain",
}
home, err := homedir.Dir()
if err == nil {
loginKeychain := path.Join(home, "Library", "Keychains", "login.keychain")
keychains = append(keychains, loginKeychain)
}
return keychains
}
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