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350714f390
* Update Go version to v1.23.7 * Bump golangci-lint to a version supporting Go 1.23 * Fix golangci-lint warnings Several rules from gosimple, revive and staticcheck linters were failing: - Redefinition of built-in identifiers (max, min, new, recover...) - Use of printf-like functions with simple strings - Check for nil slices, when len already takes it into account * Trigger Build * Trigger Build --------- Co-authored-by: Mattermost Build <build@mattermost.com>
60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package app
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import (
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"crypto/rand"
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"math/big"
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)
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const (
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passwordSpecialChars = "!$%^&*(),."
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passwordNumbers = "0123456789"
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passwordUpperCaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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passwordLowerCaseLetters = "abcdefghijklmnopqrstuvwxyz"
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passwordAllChars = passwordSpecialChars + passwordNumbers + passwordUpperCaseLetters + passwordLowerCaseLetters
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)
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func randInt(maxInt int) (int, error) {
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val, err := rand.Int(rand.Reader, big.NewInt(int64(maxInt)))
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if err != nil {
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return 0, err
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}
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return int(val.Int64()), nil
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}
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func generatePassword(minimumLength int) (string, error) {
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upperIdx, err := randInt(len(passwordUpperCaseLetters))
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if err != nil {
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return "", err
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}
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numberIdx, err := randInt(len(passwordNumbers))
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if err != nil {
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return "", err
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}
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lowerIdx, err := randInt(len(passwordLowerCaseLetters))
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if err != nil {
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return "", err
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}
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specialIdx, err := randInt(len(passwordSpecialChars))
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if err != nil {
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return "", err
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}
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// Make sure we are guaranteed at least one of each type to meet any possible password complexity requirements.
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password := string([]rune(passwordUpperCaseLetters)[upperIdx]) +
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string([]rune(passwordNumbers)[numberIdx]) +
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string([]rune(passwordLowerCaseLetters)[lowerIdx]) +
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string([]rune(passwordSpecialChars)[specialIdx])
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for len(password) < minimumLength {
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i, err := randInt(len(passwordAllChars))
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if err != nil {
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return "", err
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}
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password = password + string([]rune(passwordAllChars)[i])
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}
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return password, nil
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}
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