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middleware.go
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middleware.go
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oauth
import (
"fmt"
"net/http"
"net/url"
"path"
echo "github.com/labstack/echo/v4"
"go.thethings.network/lorawan-stack/v3/pkg/errors"
)
var errUnauthenticated = errors.DefineUnauthenticated("not_authenticated", "not authenticated")
func (s *server) requireLogin(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
_, err := s.getSession(c)
if err != nil {
return errUnauthenticated.New()
}
return next(c)
}
}
const nextKey = "n"
func (s *server) redirectToLogin(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
_, err := s.getSession(c)
if err != nil {
values := make(url.Values)
values.Set(nextKey, fmt.Sprintf("%s?%s", c.Request().URL.Path, c.QueryParams().Encode()))
return c.Redirect(http.StatusFound, fmt.Sprintf("%s?%s", path.Join(s.config.UI.MountPath(), "login"), values.Encode()))
}
return next(c)
}
}
func (s *server) redirectToNext(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
_, err := s.getSession(c)
if err == nil {
next := c.QueryParam(nextKey)
if next == "" {
next = s.config.UI.MountPath()
}
url, err := url.Parse(next)
if err != nil {
return err
}
return c.Redirect(http.StatusFound, fmt.Sprintf("%s?%s", url.Path, url.RawQuery))
}
return next(c)
}
}