caddy/modules/caddyhttp/caddyauth/hashes.go

67 lines
1.8 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 caddyauth
import (
"golang.org/x/crypto/bcrypt"
"github.com/caddyserver/caddy/v2"
)
func init() {
caddy.RegisterModule(BcryptHash{})
}
// BcryptHash implements the bcrypt hash.
type BcryptHash struct{}
// CaddyModule returns the Caddy module information.
func (BcryptHash) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
ID: "http.authentication.hashes.bcrypt",
New: func() caddy.Module { return new(BcryptHash) },
}
}
// Compare compares passwords.
func (BcryptHash) Compare(hashed, plaintext []byte) (bool, error) {
err := bcrypt.CompareHashAndPassword(hashed, plaintext)
if err == bcrypt.ErrMismatchedHashAndPassword {
return false, nil
}
if err != nil {
return false, err
}
return true, nil
}
// Hash hashes plaintext using a random salt.
func (BcryptHash) Hash(plaintext []byte) ([]byte, error) {
return bcrypt.GenerateFromPassword(plaintext, 14)
}
// FakeHash returns a fake hash.
func (BcryptHash) FakeHash() []byte {
// hashed with the following command:
// caddy hash-password --plaintext "antitiming" --algorithm "bcrypt"
return []byte("$2a$14$X3ulqf/iGxnf1k6oMZ.RZeJUoqI9PX2PM4rS5lkIKJXduLGXGPrt6")
}
// Interface guards
var (
_ Comparer = (*BcryptHash)(nil)
_ Hasher = (*BcryptHash)(nil)
)