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handler_register.go
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/
handler_register.go
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package auth
import (
"time"
"github.com/boreq/errors"
)
type Register struct {
Username string
Password string
Token InvitationToken
}
type RegisterHandler struct {
passwordHasher PasswordHasher
transactionProvider TransactionProvider
}
func NewRegisterHandler(
passwordHasher PasswordHasher,
transactionProvider TransactionProvider,
) *RegisterHandler {
return &RegisterHandler{
passwordHasher: passwordHasher,
transactionProvider: transactionProvider,
}
}
func (h *RegisterHandler) Execute(cmd Register) error {
if err := validate(cmd.Username, cmd.Password); err != nil {
return errors.Wrap(err, "invalid parameters")
}
passwordHash, err := h.passwordHasher.Hash(cmd.Password)
if err != nil {
return errors.Wrap(err, "hashing the password failed")
}
u := User{
Username: cmd.Username,
Password: passwordHash,
Administrator: false,
Created: time.Now(),
LastSeen: time.Now(),
}
if err := h.transactionProvider.Write(func(r *TransactableRepositories) error {
if _, err := r.Invitations.Get(cmd.Token); err != nil {
return errors.Wrap(err, "could not get the invitation")
}
if err := r.Invitations.Remove(cmd.Token); err != nil {
return errors.Wrap(err, "could not remove the invitation")
}
if _, err := r.Users.Get(cmd.Username); err != nil {
if !errors.Is(err, ErrNotFound) {
return errors.Wrap(err, "could not get the user")
}
} else {
return ErrUsernameTaken
}
return r.Users.Put(u)
}); err != nil {
return errors.Wrap(err, "transaction failed")
}
return nil
}