aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/user/validators.go
blob: 3207f3ace629b85eea33debd41ea7ab31f0afdff (plain)
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
/* openbills - Server for web based Libre Billing Software
 * Copyright (C) 2023-2025  Vidhu Kant Sharma <vidhukant@vidhukant.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package user

import (
	"github.com/spf13/viper"
	"strings"
	"vidhukant.com/openbills/errors"
	"vidhukant.com/openbills/util"
)

func validatePassword(pass string) error {
	// check if password is too short
	if len(pass) < viper.GetInt("security.min_password_length") {
		return errors.ErrPasswordTooShort
	}

	// check if password is too long
	if len(pass) > viper.GetInt("security.max_password_length") {
		return errors.ErrPasswordTooLong
	}

	return nil
}

func validateUsername(username string) error {
	// check if username is too short
	if len(username) < 2 {
		return errors.ErrUsernameTooShort
	}

	// check if username is too long
	if len(username) > 32 {
		return errors.ErrUsernameTooLong
	}

	// (11th October 2025) what the fuck even is this
	// I'm not even deleting this I can't stop laughing
	//
	// for _, char := range username {
	//   if !strings.Contains(username, string(char)) {
	//     return errors.ErrInvalidUsername
	//   }
	// }

	return nil
}

func (u *User) validate() error {
	u.Email = strings.TrimSpace(u.Email)
	u.Username = strings.TrimSpace(u.Username)

	// don't accept empty username
	if u.Username == "" {
		return errors.ErrEmptyUsername
	} else {
		// validate username
		err := validateUsername(u.Username)
		if err != nil {
			return err
		}
	}

	// don't accept empty email
	if u.Email == "" {
		return errors.ErrEmptyEmail
	} else {
		// validate email
		if !util.ValidateEmail(u.Email) {
			return errors.ErrInvalidEmail
		}
	}

	// validate password
	err := validatePassword(u.Password)
	if err != nil {
		return err
	}

	return nil
}