/
handler.go
41 lines (35 loc) · 1.31 KB
/
handler.go
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// Copyright (C) 2021 Mya Pitzeruse
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package httpauth
import (
"errors"
"net/http"
"github.com/mjpitz/myago/auth"
)
// Handler returns an HTTP middleware function that invokes the provided auth handlers.
func Handler(delegate http.Handler, handlers ...auth.HandlerFunc) http.HandlerFunc {
handler := auth.Composite(handlers...)
return func(w http.ResponseWriter, r *http.Request) {
ctx, err := handler(r.Context())
switch {
case errors.Is(err, auth.ErrUnauthorized):
http.Error(w, "", http.StatusUnauthorized)
case err != nil:
http.Error(w, err.Error(), http.StatusInternalServerError)
default:
delegate.ServeHTTP(w, r.WithContext(ctx))
}
}
}