/
http.go
112 lines (100 loc) · 2.53 KB
/
http.go
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package main
import (
"errors"
"log"
"net/http"
"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 runHTTP(dir, addr string) error {
http.HandleFunc("/info/refs", httpInfoRefs(dir))
http.HandleFunc("/git-upload-pack", httpGitUploadPack(dir))
log.Println("starting http server on", addr)
err := http.ListenAndServe(addr, nil)
if err != nil && !errors.Is(err, http.ErrServerClosed) {
return err
}
return nil
}
func httpInfoRefs(dir string) http.HandlerFunc {
return func(rw http.ResponseWriter, r *http.Request) {
if r.URL.Query().Get("service") != "git-upload-pack" {
http.Error(rw, "only smart git", 403)
return
}
rw.Header().Set("content-type", "application/x-git-upload-pack-advertisement")
ep, err := transport.NewEndpoint("/")
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
bfs := osfs.New(dir)
ld := server.NewFilesystemLoader(bfs)
svr := server.NewServer(ld)
sess, err := svr.NewUploadPackSession(ep, nil)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
ar, err := sess.AdvertisedReferencesContext(r.Context())
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
ar.Prefix = [][]byte{
[]byte("# service=git-upload-pack"),
pktline.Flush,
}
err = ar.Encode(rw)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
}
}
func httpGitUploadPack(dir string) http.HandlerFunc {
return func(rw http.ResponseWriter, r *http.Request) {
rw.Header().Set("content-type", "application/x-git-upload-pack-result")
upr := packp.NewUploadPackRequest()
err := upr.Decode(r.Body)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
ep, err := transport.NewEndpoint("/")
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
bfs := osfs.New(dir)
ld := server.NewFilesystemLoader(bfs)
svr := server.NewServer(ld)
sess, err := svr.NewUploadPackSession(ep, nil)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
res, err := sess.UploadPack(r.Context(), upr)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
err = res.Encode(rw)
if err != nil {
http.Error(rw, err.Error(), 500)
log.Println(err)
return
}
}
}