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cookie_auth.go
55 lines (51 loc) · 1.63 KB
/
cookie_auth.go
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// Copyright © 2020 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 webmiddleware
import (
"net/http"
"go.thethings.network/lorawan-stack/v3/pkg/auth"
)
// CookieAuth extracts the auth cookie and forwards it
// to the Authorization header.
func CookieAuth(cookieName string) MiddlewareFunc {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("Authorization") != "" {
next.ServeHTTP(w, r)
return
}
cookieValue, err := r.Cookie(cookieName)
if err != nil {
next.ServeHTTP(w, r)
return
}
sc, err := GetSecureCookie(r.Context())
if err != nil {
next.ServeHTTP(w, r)
return
}
authCookie := &auth.CookieShape{}
err = sc.Decode(cookieName, cookieValue.Value, authCookie)
if err != nil {
next.ServeHTTP(w, r)
return
}
if authCookie.SessionSecret != "" {
key := auth.JoinToken(auth.SessionToken, authCookie.SessionID, authCookie.SessionSecret)
r.Header.Set("Authorization", "Bearer "+key)
}
next.ServeHTTP(w, r)
})
}
}