mirror of
https://git.rwth-aachen.de/acs/public/villas/web-backend-go/
synced 2025-03-30 00:00:12 +01:00
113 lines
2.9 KiB
Go
113 lines
2.9 KiB
Go
/** Package database
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*
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* @author Sonja Happ <sonja.happ@eonerc.rwth-aachen.de>
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* @copyright 2014-2019, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASweb-backend-go
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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package database
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import (
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"fmt"
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"math/rand"
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"strings"
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"time"
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"github.com/zpatrick/go-config"
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"golang.org/x/crypto/bcrypt"
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)
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// AddAdminUser adds a default admin user to the DB
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func AddAdminUser(cfg *config.Config) (string, error) {
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DBpool.AutoMigrate(User{})
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updatedPW := false
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generatedPW := false
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adminName, _ := cfg.StringOr("admin.user", "admin")
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adminMail, _ := cfg.StringOr("admin.mail", "admin@example.com")
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adminPW, err := cfg.String("admin.pass")
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if err == nil && adminPW != "" {
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updatedPW = true
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} else if err != nil || adminPW == "" {
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adminPW = generatePassword(16)
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generatedPW = true
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}
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adminPWEnc, err := bcrypt.GenerateFromPassword([]byte(adminPW), 10)
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if err != nil {
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return "", err
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}
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// Check if admin user exists in DB
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var users []User
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err = DBpool.Where("Username = ?", adminName).Find(&users).Error
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if err != nil {
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return "", err
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}
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if len(users) == 0 {
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fmt.Println("No admin user found in DB, adding default admin user.")
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if generatedPW {
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fmt.Printf(" Generated admin password: %s for admin user %s\n", adminPW, adminName)
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}
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user := User{
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Username: adminName,
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Password: string(adminPWEnc),
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Role: "Admin",
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Mail: adminMail,
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Active: true,
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}
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// add admin user to DB
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err = DBpool.Create(&user).Error
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if err != nil {
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return "", err
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}
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} else if updatedPW {
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fmt.Println("Found existing admin user in DB, updating user from CLI parameters.")
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user := users[0]
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user.Password = string(adminPWEnc)
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user.Role = "Admin"
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user.Mail = adminMail
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user.Active = true
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err = DBpool.Model(user).Update(&user).Error
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if err != nil {
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return "", err
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}
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}
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return adminPW, err
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}
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func generatePassword(Len int) string {
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rand.Seed(time.Now().UnixNano())
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chars := []rune("ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
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"abcdefghijklmnopqrstuvwxyz" +
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"0123456789")
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var b strings.Builder
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for i := 0; i < Len; i++ {
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b.WriteRune(chars[rand.Intn(len(chars))])
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}
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return b.String()
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}
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