mirror of https://github.com/caddyserver/caddy.git
123 lines
3.4 KiB
Go
123 lines
3.4 KiB
Go
// 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"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/caddyserver/caddy/v2"
|
|
)
|
|
|
|
func init() {
|
|
caddy.RegisterModule(FileLoader{})
|
|
}
|
|
|
|
// FileLoader loads certificates and their associated keys from disk.
|
|
type FileLoader []CertKeyFilePair
|
|
|
|
// Provision implements caddy.Provisioner.
|
|
func (fl FileLoader) Provision(ctx caddy.Context) error {
|
|
repl, ok := ctx.Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
|
|
if !ok {
|
|
repl = caddy.NewReplacer()
|
|
}
|
|
for k, pair := range fl {
|
|
for i, tag := range pair.Tags {
|
|
pair.Tags[i] = repl.ReplaceKnown(tag, "")
|
|
}
|
|
fl[k] = CertKeyFilePair{
|
|
Certificate: repl.ReplaceKnown(pair.Certificate, ""),
|
|
Key: repl.ReplaceKnown(pair.Key, ""),
|
|
Format: repl.ReplaceKnown(pair.Format, ""),
|
|
Tags: pair.Tags,
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// CaddyModule returns the Caddy module information.
|
|
func (FileLoader) CaddyModule() caddy.ModuleInfo {
|
|
return caddy.ModuleInfo{
|
|
ID: "tls.certificates.load_files",
|
|
New: func() caddy.Module { return new(FileLoader) },
|
|
}
|
|
}
|
|
|
|
// CertKeyFilePair pairs certificate and key file names along with their
|
|
// encoding format so that they can be loaded from disk.
|
|
type CertKeyFilePair struct {
|
|
// Path to the certificate (public key) file.
|
|
Certificate string `json:"certificate"`
|
|
|
|
// Path to the private key file.
|
|
Key string `json:"key"`
|
|
|
|
// The format of the cert and key. Can be "pem". Default: "pem"
|
|
Format string `json:"format,omitempty"`
|
|
|
|
// Arbitrary values to associate with this certificate.
|
|
// Can be useful when you want to select a particular
|
|
// certificate when there may be multiple valid candidates.
|
|
Tags []string `json:"tags,omitempty"`
|
|
}
|
|
|
|
// LoadCertificates returns the certificates to be loaded by fl.
|
|
func (fl FileLoader) LoadCertificates() ([]Certificate, error) {
|
|
certs := make([]Certificate, 0, len(fl))
|
|
for _, pair := range fl {
|
|
certData, err := os.ReadFile(pair.Certificate)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
keyData, err := os.ReadFile(pair.Key)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var cert tls.Certificate
|
|
switch pair.Format {
|
|
case "":
|
|
fallthrough
|
|
|
|
case "pem":
|
|
// if the start of the key file looks like an encrypted private key,
|
|
// reject it with a helpful error message
|
|
if strings.Contains(string(keyData[:40]), "ENCRYPTED") {
|
|
return nil, fmt.Errorf("encrypted private keys are not supported; please decrypt the key first")
|
|
}
|
|
|
|
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)
|
|
_ caddy.Provisioner = (FileLoader)(nil)
|
|
)
|