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jwt_login.go
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/
jwt_login.go
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package authentication
import (
"errors"
"fmt"
"net/http"
"github.com/labstack/echo/v4"
"github.com/iotaledger/hive.go/web/basicauth"
"github.com/iotaledger/wasp/packages/authentication/shared"
"github.com/iotaledger/wasp/packages/users"
)
type AuthHandler struct {
Jwt *JWTAuth
UserManager *users.UserManager
}
func (a *AuthHandler) JWTLoginHandler(c echo.Context) error {
if c.Request().Header.Get(echo.HeaderContentType) != echo.MIMEApplicationJSON {
return errors.New("invalid login request")
}
req, user, err := a.parseAuthRequest(c)
if err != nil {
return c.JSON(http.StatusUnauthorized, shared.LoginResponse{Error: err})
}
claims := &WaspClaims{
Permissions: user.Permissions,
}
token, err := a.Jwt.IssueJWT(req.Username, claims)
if err != nil {
return c.JSON(http.StatusUnauthorized, shared.LoginResponse{Error: fmt.Errorf("unable to login")})
}
return c.JSON(http.StatusOK, shared.LoginResponse{JWT: token})
}
func (a *AuthHandler) parseAuthRequest(c echo.Context) (*shared.LoginRequest, *users.User, error) {
request := &shared.LoginRequest{}
if err := c.Bind(request); err != nil {
return nil, nil, fmt.Errorf("invalid form data")
}
user, err := a.UserManager.User(request.Username)
if err != nil {
return nil, nil, fmt.Errorf("invalid credentials")
}
if !validatePassword(user, request.Password) {
return nil, nil, fmt.Errorf("invalid credentials")
}
return request, user, nil
}
func validatePassword(user *users.User, password string) bool {
valid, err := basicauth.VerifyPassword([]byte(password), user.PasswordSalt, user.PasswordHash)
if err != nil {
return false
}
return valid
}