legit/routes/git.go

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2022-12-24 09:27:44 +00:00
package routes
import (
"errors"
"log"
"net/http"
"path/filepath"
"github.com/alexedwards/flow"
"github.com/go-git/go-billy/v5/osfs"
"github.com/go-git/go-git/v5/plumbing/format/pktline"
"github.com/go-git/go-git/v5/plumbing/protocol/packp"
"github.com/go-git/go-git/v5/plumbing/transport"
"github.com/go-git/go-git/v5/plumbing/transport/server"
)
func (d *deps) InfoRefs(w http.ResponseWriter, r *http.Request) {
name := flow.Param(r.Context(), "name")
name = filepath.Clean(name)
repo := filepath.Join(d.c.Repo.ScanPath, name)
w.Header().Set("content-type", "application/x-git-upload-pack-advertisement")
ep, err := transport.NewEndpoint("/")
if err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
billyfs := osfs.New(repo)
loader := server.NewFilesystemLoader(billyfs)
srv := server.NewServer(loader)
session, err := srv.NewUploadPackSession(ep, nil)
if err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
ar, err := session.AdvertisedReferencesContext(r.Context())
if errors.Is(err, transport.ErrRepositoryNotFound) {
http.Error(w, err.Error(), 404)
return
} else if err != nil {
http.Error(w, err.Error(), 500)
return
}
ar.Prefix = [][]byte{
[]byte("# service=git-upload-pack"),
pktline.Flush,
}
if err = ar.Encode(w); err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
}
func (d *deps) UploadPack(w http.ResponseWriter, r *http.Request) {
name := flow.Param(r.Context(), "name")
name = filepath.Clean(name)
repo := filepath.Join(d.c.Repo.ScanPath, name)
w.Header().Set("content-type", "application/x-git-upload-pack-result")
upr := packp.NewUploadPackRequest()
err := upr.Decode(r.Body)
if err != nil {
http.Error(w, err.Error(), 400)
log.Printf("git: %s", err)
return
}
ep, err := transport.NewEndpoint("/")
if err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
billyfs := osfs.New(repo)
loader := server.NewFilesystemLoader(billyfs)
svr := server.NewServer(loader)
session, err := svr.NewUploadPackSession(ep, nil)
if err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
res, err := session.UploadPack(r.Context(), upr)
if err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
if err = res.Encode(w); err != nil {
http.Error(w, err.Error(), 500)
log.Printf("git: %s", err)
return
}
}