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login_service.go
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login_service.go
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package service
import (
"github.com/HotPotatoC/twitter-clone/internal/common/bcrypt"
"github.com/HotPotatoC/twitter-clone/internal/common/database"
"github.com/HotPotatoC/twitter-clone/internal/common/token"
"github.com/HotPotatoC/twitter-clone/internal/common/validator"
"github.com/HotPotatoC/twitter-clone/internal/module/user/entity"
"github.com/dgrijalva/jwt-go"
"github.com/pkg/errors"
)
var (
ErrInvalidPassword = errors.New("Invalid password provided")
)
type LoginInput struct {
Email string `json:"email" validate:"required,email"`
Password string `json:"password" validate:"required"`
}
func (i LoginInput) Validate() []*validator.ValidationError {
return validator.ValidateStruct(i)
}
type LoginService interface {
Execute(input LoginInput) (*token.AccessToken, *token.RefreshToken, error)
}
type loginService struct {
db database.Database
}
func NewLoginService(db database.Database) LoginService {
return loginService{db: db}
}
func (s loginService) Execute(input LoginInput) (*token.AccessToken, *token.RefreshToken, error) {
var id int
var handle, email, password string
err := s.db.QueryRow("SELECT id, handle, email, password FROM users WHERE email = $1", input.Email).Scan(&id, &handle, &email, &password)
if err != nil {
return nil, nil, entity.ErrUserDoesNotExist
}
if !bcrypt.Compare(password, input.Password) {
return nil, nil, ErrInvalidPassword
}
at, err := token.NewAccessToken(jwt.MapClaims{
"userID": id,
"handle": handle,
"email": email,
})
if err != nil {
return nil, nil, errors.Wrap(err, "service.loginService.Execute")
}
rt, err := token.NewRefreshToken(jwt.MapClaims{
"userID": id,
})
if err != nil {
return nil, nil, errors.Wrap(err, "service.loginService.Execute")
}
return at, rt, nil
}