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package caddytls
import (
"crypto/tls"
"fmt"
"io/ioutil"
"bitbucket.org/lightcodelabs/caddy2"
)
func init() {
caddy2.RegisterModule(caddy2.Module{
Name: "tls.certificates.load_files",
New: func() interface{} { return fileLoader{} },
})
}
// fileLoader loads certificates and their associated keys from disk.
type fileLoader []CertKeyFilePair
// CertKeyFilePair pairs certificate and key file names along with their
// encoding format so that they can be loaded from disk.
type CertKeyFilePair struct {
Certificate string `json:"certificate"`
Key string `json:"key"`
Format string `json:"format,omitempty"` // "pem" is default
}
// LoadCertificates returns the certificates to be loaded by fl.
func (fl fileLoader) LoadCertificates() ([]tls.Certificate, error) {
var certs []tls.Certificate
for _, pair := range fl {
certData, err := ioutil.ReadFile(pair.Certificate)
if err != nil {
return nil, err
}
keyData, err := ioutil.ReadFile(pair.Key)
if err != nil {
return nil, err
}
var cert tls.Certificate
switch pair.Format {
case "":
fallthrough
case "pem":
cert, err = tls.X509KeyPair(certData, keyData)
default:
return nil, fmt.Errorf("unrecognized certificate/key encoding format: %s", pair.Format)
}
if err != nil {
return nil, err
}
certs = append(certs, cert)
}
return certs, nil
}
// Interface guard
var _ CertificateLoader = (fileLoader)(nil)
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