drone/app/api/handler/repo/git_info_refs.go

75 lines
2.3 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 repo
import (
"context"
"errors"
"fmt"
"net/http"
apiauth "github.com/harness/gitness/app/api/auth"
"github.com/harness/gitness/app/api/controller/repo"
"github.com/harness/gitness/app/api/render"
"github.com/harness/gitness/app/api/request"
"github.com/harness/gitness/app/api/usererror"
"github.com/harness/gitness/app/auth"
"github.com/harness/gitness/app/url"
"github.com/harness/gitness/git/api"
)
// HandleGitInfoRefs handles the info refs part of git's smart http protocol.
func HandleGitInfoRefs(repoCtrl *repo.Controller, urlProvider url.Provider) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
session, _ := request.AuthSessionFrom(ctx)
repoRef, err := request.GetRepoRefFromPath(r)
if err != nil {
w.WriteHeader(http.StatusNotFound)
pktError(ctx, w, err)
return
}
gitProtocol := request.GetGitProtocolFromHeadersOrDefault(r, "")
service, err := request.GetGitServiceTypeFromQuery(r)
if err != nil {
pktError(ctx, w, err)
return
}
// Clients MUST NOT reuse or revalidate a cached response.
// Servers MUST include sufficient Cache-Control headers to prevent caching of the response.
// https://git-scm.com/docs/http-protocol
render.NoCache(w)
w.Header().Set("Content-Type", fmt.Sprintf("application/x-git-%s-advertisement", service))
err = repoCtrl.GitInfoRefs(ctx, session, repoRef, service, gitProtocol, w)
if errors.Is(err, apiauth.ErrNotAuthorized) && auth.IsAnonymousSession(session) {
render.GitBasicAuth(ctx, w, urlProvider)
return
}
if err != nil {
pktError(ctx, w, err)
return
}
}
}
func pktError(ctx context.Context, w http.ResponseWriter, err error) {
terr := usererror.Translate(ctx, err)
w.WriteHeader(terr.Status)
api.PktError(w, terr)
}