102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
package miniauth
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import (
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"errors"
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"net/mail"
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"regexp"
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"git.keks.cloud/kekskurse/miniauth/pkg/smtpclient"
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"git.keks.cloud/kekskurse/miniauth/pkg/userstore"
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"git.keks.cloud/kekskurse/miniauth/pkg/utils"
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"github.com/go-passwd/validator"
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"github.com/rs/zerolog"
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)
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type Miniauth struct {
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store userstore.Store
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log zerolog.Logger
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smtp smtpclient.SMTPClient
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}
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func NewMiniauth(us userstore.Store, sm smtpclient.SMTPClient) Miniauth {
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m := Miniauth{}
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m.store = us
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m.smtp = sm
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return m
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}
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func (m Miniauth) RegisterUser(username string, email string, password string) error {
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log := m.log.With().Str("func", "RegisterUser").Str("username", username).Str("mail", email).Logger()
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err := m.checkUsernameForRegistration(username)
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if err != nil {
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return utils.WrapError(ErrUserHasInvalideChars, err, log)
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}
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err = m.checkPasswordForRegistration(password)
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if err != nil {
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return utils.WrapError(ErrPasswordNotComplexEnough, err, log)
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}
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_, err = mail.ParseAddress(email)
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if err != nil {
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return utils.WrapError(ErrMailAddressInvalide, err, log)
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}
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used, err := m.store.MailCheckExists(email)
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if err != nil {
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return utils.WrapError(ErrMailAddressInvalide, err, log)
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}
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if used {
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return utils.WrapError(ErrMailAddressInvalide, errors.New("email alreadys used"), log)
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}
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id, err := m.store.UserWrite(username, password)
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if err != nil {
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return utils.WrapError(ErrCantCreateUser, err, log)
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}
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log = log.With().Int64("userid", id).Logger()
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err = m.store.MailAdd(email, id, true)
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if err != nil {
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return utils.WrapError(ErrCantCreateUser, err, log)
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}
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err = m.smtp.SendMail("register", email, map[string]any{"hash": "abc"})
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if err != nil {
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m.store.MailRemove(email)
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m.store.UserDelete(username)
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return utils.WrapError(ErrCantSendMail, err, log)
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}
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return nil
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}
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func (m Miniauth) checkPasswordForRegistration(password string) error {
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passwordValidator := validator.New(
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validator.MinLength(15, nil),
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validator.ContainsAtLeast("abcdefghijklmnopqrstuvwxyz", 5, nil),
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validator.ContainsAtLeast("0123456789", 3, nil),
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validator.ContainsAtLeast(",;.:-_#+*?=}])[({/&%$§!<>|", 3, nil))
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err := passwordValidator.Validate(password)
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return err
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}
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func (m Miniauth) checkUsernameForRegistration(username string) error {
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reg := regexp.MustCompile("^[a-z0-9]{4,25}$")
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if !reg.MatchString(username) {
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return ErrUserHasInvalideChars
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}
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exists, err := m.store.UserExists(username)
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if err != nil {
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return err
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}
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if exists {
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return ErrUsernameIsTaken
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}
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return nil
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}
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