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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddytls
import (
"crypto/tls"
"fmt"
"io/ioutil"
"github.com/caddyserver/caddy/v2"
)
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)
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