| 1 | // This benchmark-only server exposes plain native Git Smart HTTP on loopback. |
| 2 | // It intentionally has no Nostr authorization; never deploy it as a relay. |
| 3 | package main |
| 4 | |
| 5 | import ( |
| 6 | "compress/gzip" |
| 7 | "flag" |
| 8 | "io" |
| 9 | "log" |
| 10 | "net/http" |
| 11 | "net/http/cgi" |
| 12 | "os" |
| 13 | "os/exec" |
| 14 | "path/filepath" |
| 15 | ) |
| 16 | |
| 17 | func main() { |
| 18 | root := flag.String("root" , "" , "directory of bare benchmark repositories" ) |
| 19 | listen := flag.String("listen" , "127.0.0.1:17449" , "loopback HTTP listener" ) |
| 20 | flag.Parse() |
| 21 | if *root == "" { |
| 22 | log.Fatal("--root is required" ) |
| 23 | } |
| 24 | path, err := filepath.Abs(*root) |
| 25 | if err != nil { |
| 26 | log.Fatal(err) |
| 27 | } |
| 28 | git, err := exec.LookPath("git" ) |
| 29 | if err != nil { |
| 30 | log.Fatal(err) |
| 31 | } |
| 32 | handler := &cgi.Handler{ |
| 33 | Path: git, Args: []string{"http-backend" }, Dir: path, |
| 34 | Env: []string{"GIT_PROJECT_ROOT=" + path, "GIT_HTTP_EXPORT_ALL=1" }, |
| 35 | } |
| 36 | log.Printf("benchmark Git HTTP listening on %s" , *listen) |
| 37 | log.Fatal(http.ListenAndServe(*listen, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 38 | // net/http has already decoded HTTP chunk framing. Git can consume an |
| 39 | // unknown-length request from stdin; the generic CGI guard cannot. |
| 40 | r.TransferEncoding = nil |
| 41 | if r.Header.Get("Content-Encoding" ) == "gzip" { |
| 42 | reader, err := gzip.NewReader(r.Body) |
| 43 | if err != nil { |
| 44 | http.Error(w, err.Error(), http.StatusBadRequest) |
| 45 | return |
| 46 | } |
| 47 | defer reader.Close() |
| 48 | file, err := os.CreateTemp("" , "git-http-request-" ) |
| 49 | if err != nil { |
| 50 | http.Error(w, err.Error(), http.StatusInternalServerError) |
| 51 | return |
| 52 | } |
| 53 | defer os.Remove(file.Name()) |
| 54 | defer file.Close() |
| 55 | size, err := io.Copy(file, reader) |
| 56 | if err != nil { |
| 57 | http.Error(w, err.Error(), http.StatusBadRequest) |
| 58 | return |
| 59 | } |
| 60 | if _, err := file.Seek(0, io.SeekStart); err != nil { |
| 61 | http.Error(w, err.Error(), http.StatusInternalServerError) |
| 62 | return |
| 63 | } |
| 64 | r.Body = file |
| 65 | r.ContentLength = size |
| 66 | r.Header.Del("Content-Encoding" ) |
| 67 | } |
| 68 | handler.ServeHTTP(w, r) |
| 69 | }))) |
| 70 | } |