caddy/modules/filestorage/filestorage.go

86 lines
2.2 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 filestorage
import (
"github.com/caddyserver/certmagic"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
)
func init() {
caddy.RegisterModule(FileStorage{})
}
// FileStorage is a certmagic.Storage wrapper for certmagic.FileStorage.
type FileStorage struct {
// The base path to the folder used for storage.
Root string `json:"root,omitempty"`
}
// CaddyModule returns the Caddy module information.
func (FileStorage) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
ID: "caddy.storage.file_system",
New: func() caddy.Module { return new(FileStorage) },
}
}
// CertMagicStorage converts s to a certmagic.Storage instance.
func (s FileStorage) CertMagicStorage() (certmagic.Storage, error) {
return &certmagic.FileStorage{Path: s.Root}, nil
}
// UnmarshalCaddyfile sets up the storage module from Caddyfile tokens.
func (s *FileStorage) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
if !d.Next() {
return d.Err("expected tokens")
}
if d.NextArg() {
s.Root = d.Val()
}
if d.NextArg() {
return d.ArgErr()
}
for d.NextBlock(0) {
switch d.Val() {
case "root":
if !d.NextArg() {
return d.ArgErr()
}
if s.Root != "" {
return d.Err("root already set")
}
s.Root = d.Val()
if d.NextArg() {
return d.ArgErr()
}
default:
return d.Errf("unrecognized parameter '%s'", d.Val())
}
}
if s.Root == "" {
return d.Err("missing root path (to use default, omit storage config entirely)")
}
return nil
}
// Interface guards
var (
_ caddy.StorageConverter = (*FileStorage)(nil)
_ caddyfile.Unmarshaler = (*FileStorage)(nil)
)