drone/app/api/middleware/web/public_access.go
2024-08-05 23:39:16 +00:00

54 lines
1.7 KiB
Go

// Copyright 2023 Harness, Inc.
//
// 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 web
import (
"errors"
"net/http"
"github.com/harness/gitness/app/auth/authn"
"github.com/harness/gitness/web"
"github.com/rs/zerolog/hlog"
)
// PublicAccess enables rendering of the UI in public access mode if
// public access is enabled in the configuration and the request contains no logged-in user.
func PublicAccess(
publicAccessEnabled bool,
authenticator authn.Authenticator,
) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
if !publicAccessEnabled {
return next
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// slightly more expensive to authenticate the user, but we can't make assumptions about the authenticator.
_, err := authenticator.Authenticate(r)
if errors.Is(err, authn.ErrNoAuthData) {
r = r.WithContext(web.WithRenderPublicAccess(r.Context(), true))
} else if err != nil {
// in case of failure to authenticate the user treat it as attempt to login
hlog.FromRequest(r).Warn().Err(err).Msgf(
"failed to authenticate principal, continue without public access UI",
)
}
next.ServeHTTP(w, r)
})
}
}