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package client
import (
"crypto/x509"
"io/ioutil"
"os"
"path"
)
// systemCertPool circumvents the fact that Go on macOS does not support
// SSL_CERT_{DIR,FILE}.
func systemCertPool() (*x509.CertPool, error) {
var certPem []byte
if f := os.Getenv("SSL_CERT_FILE"); len(f) > 0 {
pem, err := ioutil.ReadFile(f)
if err != nil {
return nil, err
}
pem = append(pem, '\n')
certPem = append(certPem, pem...)
}
if d := os.Getenv("SSL_CERT_DIR"); len(d) > 0 {
entries, err := ioutil.ReadDir(d)
if err != nil {
return nil, err
}
for _, entry := range entries {
if entry.IsDir() {
continue
}
pem, err := ioutil.ReadFile(path.Join(d, entry.Name()))
if err != nil {
return nil, err
}
pem = append(pem, '\n')
certPem = append(certPem, pem...)
}
}
pool, err := x509.SystemCertPool()
if err != nil {
return nil, err
}
pool.AppendCertsFromPEM(certPem)
return pool, nil
}
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