-
Notifications
You must be signed in to change notification settings - Fork 1
/
config.go
117 lines (103 loc) · 3.42 KB
/
config.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
//
// Copyright (c) 2016 whawty contributors (see AUTHORS file)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * Neither the name of whawty.auth nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
package store
import (
"fmt"
"os"
"gopkg.in/yaml.v3"
)
type cfgParams struct {
ID uint `yaml:"id"`
Scryptauth *ScryptAuthParams `yaml:"scryptauth"`
Argon2ID *Argon2IDParams `yaml:"argon2id"`
}
type config struct {
BaseDir string `yaml:"basedir"`
Default uint `yaml:"default"`
Params []cfgParams `yaml:"params"`
}
func readConfig(configfile string) (*config, error) {
file, err := os.Open(configfile)
if err != nil {
return nil, err
}
defer file.Close()
decoder := yaml.NewDecoder(file)
decoder.KnownFields(true)
c := &config{}
if err = decoder.Decode(c); err != nil {
return nil, fmt.Errorf("Error parsing config file: %s", err)
}
return c, nil
}
func (d *Dir) fromConfig(configfile string) error {
c, err := readConfig(configfile)
if err != nil {
return err
}
if c.BaseDir == "" {
return fmt.Errorf("Error: config file does not contain a base directory")
}
d.BaseDir = c.BaseDir
d.Default = c.Default
for _, params := range c.Params {
if params.ID == 0 {
return fmt.Errorf("Error: parameter-set 0 is reserved")
}
n := 0
if params.Scryptauth != nil {
n += 1
if d.Params[params.ID], err = NewScryptAuthHasher(params.Scryptauth); err != nil {
return err
}
}
if params.Argon2ID != nil {
n += 1
if d.Params[params.ID], err = NewArgon2IDHasher(params.Argon2ID); err != nil {
return err
}
}
if n == 0 {
return fmt.Errorf("Error: parameter-set %d uses unknown algorithm", params.ID)
}
if n > 1 {
return fmt.Errorf("Error: parameter-set %d has more than one algorithm configured", params.ID)
}
}
if c.Default == 0 {
if len(d.Params) != 0 {
return fmt.Errorf("Error: no default parameter-set")
}
} else if _, exists := d.Params[c.Default]; !exists {
return fmt.Errorf("Error: invalid default parameter-set %d", c.Default)
}
d.Default = c.Default
return nil
}