caddy/modules/caddytls/fileloader.go

63 lines
1.5 KiB
Go

package caddytls
import (
"crypto/tls"
"fmt"
"io/ioutil"
"github.com/caddyserver/caddy"
)
func init() {
caddy.RegisterModule(caddy.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
Tags []string `json:"tags,omitempty"`
}
// LoadCertificates returns the certificates to be loaded by fl.
func (fl fileLoader) LoadCertificates() ([]Certificate, error) {
var certs []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, Certificate{Certificate: cert, Tags: pair.Tags})
}
return certs, nil
}
// Interface guard
var _ CertificateLoader = (fileLoader)(nil)