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							84 lines
						
					
					
						
							2.4 KiB
						
					
					
				| // 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 ( | |
| 	"encoding/base64" | |
| 	"flag" | |
| 	"fmt" | |
| 
 | |
| 	"github.com/caddyserver/caddy/v2" | |
| 	caddycmd "github.com/caddyserver/caddy/v2/cmd" | |
| 	"golang.org/x/crypto/bcrypt" | |
| 	"golang.org/x/crypto/scrypt" | |
| ) | |
| 
 | |
| func init() { | |
| 	caddycmd.RegisterCommand(caddycmd.Command{ | |
| 		Name:  "hash-password", | |
| 		Func:  cmdHashPassword, | |
| 		Usage: "--plaintext <password> [--salt <string>] [--algorithm <name>]", | |
| 		Short: "Hashes a password and writes base64", | |
| 		Long: ` | |
| Convenient way to hash a plaintext password. The resulting | |
| hash is written to stdout as a base64 string. | |
|  | |
| --algorithm may be bcrypt or scrypt. If script, the default | |
| parameters are used. | |
|  | |
| Use the --salt flag for algorithms which require a salt to | |
| be provided (scrypt). | |
| `, | |
| 		Flags: func() *flag.FlagSet { | |
| 			fs := flag.NewFlagSet("hash-password", flag.ExitOnError) | |
| 			fs.String("algorithm", "bcrypt", "Name of the hash algorithm") | |
| 			fs.String("plaintext", "", "The plaintext password") | |
| 			fs.String("salt", "", "The password salt") | |
| 			return fs | |
| 		}(), | |
| 	}) | |
| } | |
| 
 | |
| func cmdHashPassword(fs caddycmd.Flags) (int, error) { | |
| 	algorithm := fs.String("algorithm") | |
| 	plaintext := []byte(fs.String("plaintext")) | |
| 	salt := []byte(fs.String("salt")) | |
| 
 | |
| 	if len(plaintext) == 0 { | |
| 		return caddy.ExitCodeFailedStartup, fmt.Errorf("password is required") | |
| 	} | |
| 
 | |
| 	var hash []byte | |
| 	var err error | |
| 	switch algorithm { | |
| 	case "bcrypt": | |
| 		hash, err = bcrypt.GenerateFromPassword(plaintext, bcrypt.DefaultCost) | |
| 	case "scrypt": | |
| 		def := ScryptHash{} | |
| 		def.SetDefaults() | |
| 		hash, err = scrypt.Key(plaintext, salt, def.N, def.R, def.P, def.KeyLength) | |
| 	default: | |
| 		return caddy.ExitCodeFailedStartup, fmt.Errorf("unrecognized hash algorithm: %s", algorithm) | |
| 	} | |
| 	if err != nil { | |
| 		return caddy.ExitCodeFailedStartup, err | |
| 	} | |
| 
 | |
| 	hashBase64 := base64.StdEncoding.EncodeToString(hash) | |
| 
 | |
| 	fmt.Println(hashBase64) | |
| 
 | |
| 	return 0, nil | |
| }
 | |
| 
 |