mirror of
https://github.com/go-gitea/gitea
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f8b471ace1
Fixes #28660 Fixes an admin api bug related to `user.LoginSource` Fixed `/user/emails` response not identical to GitHub api This PR unifies the user update methods. The goal is to keep the logic only at one place (having audit logs in mind). For example, do the password checks only in one method not everywhere a password is updated. After that PR is merged, the user creation should be next.
136 lines
3.2 KiB
Go
136 lines
3.2 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package password
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import (
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"bytes"
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"context"
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"crypto/rand"
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"errors"
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"math/big"
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"strings"
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"sync"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/translation"
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)
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var (
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ErrComplexity = errors.New("password not complex enough")
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ErrMinLength = errors.New("password not long enough")
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)
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// complexity contains information about a particular kind of password complexity
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type complexity struct {
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ValidChars string
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TrNameOne string
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}
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var (
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matchComplexityOnce sync.Once
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validChars string
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requiredList []complexity
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charComplexities = map[string]complexity{
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"lower": {
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`abcdefghijklmnopqrstuvwxyz`,
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"form.password_lowercase_one",
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},
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"upper": {
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`ABCDEFGHIJKLMNOPQRSTUVWXYZ`,
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"form.password_uppercase_one",
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},
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"digit": {
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`0123456789`,
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"form.password_digit_one",
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},
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"spec": {
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` !"#$%&'()*+,-./:;<=>?@[\]^_{|}~` + "`",
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"form.password_special_one",
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},
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}
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)
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// NewComplexity for preparation
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func NewComplexity() {
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matchComplexityOnce.Do(func() {
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setupComplexity(setting.PasswordComplexity)
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})
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}
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func setupComplexity(values []string) {
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if len(values) != 1 || values[0] != "off" {
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for _, val := range values {
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if complex, ok := charComplexities[val]; ok {
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validChars += complex.ValidChars
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requiredList = append(requiredList, complex)
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}
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}
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if len(requiredList) == 0 {
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// No valid character classes found; use all classes as default
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for _, complex := range charComplexities {
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validChars += complex.ValidChars
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requiredList = append(requiredList, complex)
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}
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}
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}
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if validChars == "" {
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// No complexities to check; provide a sensible default for password generation
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validChars = charComplexities["lower"].ValidChars + charComplexities["upper"].ValidChars + charComplexities["digit"].ValidChars
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}
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}
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// IsComplexEnough return True if password meets complexity settings
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func IsComplexEnough(pwd string) bool {
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NewComplexity()
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if len(validChars) > 0 {
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for _, req := range requiredList {
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if !strings.ContainsAny(req.ValidChars, pwd) {
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return false
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}
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}
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}
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return true
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}
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// Generate a random password
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func Generate(n int) (string, error) {
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NewComplexity()
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buffer := make([]byte, n)
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max := big.NewInt(int64(len(validChars)))
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for {
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for j := 0; j < n; j++ {
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rnd, err := rand.Int(rand.Reader, max)
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if err != nil {
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return "", err
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}
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buffer[j] = validChars[rnd.Int64()]
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}
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if err := IsPwned(context.Background(), string(buffer)); err != nil {
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if errors.Is(err, ErrIsPwned) {
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continue
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}
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return "", err
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}
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if IsComplexEnough(string(buffer)) && string(buffer[0]) != " " && string(buffer[n-1]) != " " {
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return string(buffer), nil
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}
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}
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}
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// BuildComplexityError builds the error message when password complexity checks fail
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func BuildComplexityError(locale translation.Locale) string {
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var buffer bytes.Buffer
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buffer.WriteString(locale.Tr("form.password_complexity"))
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buffer.WriteString("<ul>")
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for _, c := range requiredList {
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buffer.WriteString("<li>")
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buffer.WriteString(locale.Tr(c.TrNameOne))
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buffer.WriteString("</li>")
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}
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buffer.WriteString("</ul>")
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return buffer.String()
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}
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