diff options
| author | Adin Scannell <adin@scannell.ca> | 2019-06-01 00:42:25 -0700 |
|---|---|---|
| committer | Ian Lewis <ianlewis@google.com> | 2019-06-06 14:43:08 +0900 |
| commit | 483794db83cf238ba0825a7a0ec0b47b4e173bc3 (patch) | |
| tree | 6a175e82b1043754a4a063901c2beac5563c3c6b /cmd/gvisor-website | |
| parent | 837a5b13223c33f81e094ccbef1bfa86950c2899 (diff) | |
Intercept all ?go-get=1 requests.
Diffstat (limited to 'cmd/gvisor-website')
| -rw-r--r-- | cmd/gvisor-website/main.go | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/cmd/gvisor-website/main.go b/cmd/gvisor-website/main.go index 82364b6fe..00af4549e 100644 --- a/cmd/gvisor-website/main.go +++ b/cmd/gvisor-website/main.go @@ -49,7 +49,28 @@ var prefixHelpers = map[string]string{ "c/linux/amd64": "/docs/user_guide/compatibility/amd64/#%s", } -var validId = regexp.MustCompile(`^[A-Za-z0-9-]*/?$`) +var ( + validId = regexp.MustCompile(`^[A-Za-z0-9-]*/?$`) + goGetHeader = `<meta name="go-import" content="gvisor.dev git https://github.com/google/gvisor">` + goGetHTML5 = `<!doctype html><html><head><meta charset=utf-8>` + goGetHeader + `<title>Go-get</title></head><body></html>` +) + +// wrappedHandler wraps an http.Handler. +// +// If the query parameters include go-get=1, then we redirect to a single +// static page that allows us to serve arbitrary Go packages. +func wrappedHandler(h http.Handler) http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + gg, ok := r.URL.Query()["go-get"] + if ok && len(gg) == 1 && gg[0] == "1" { + // Serve a trivial html page. + w.Write([]byte(goGetHTML5)) + return + } + // Fallthrough. + h.ServeHTTP(w, r) + }) +} // redirectWithQuery redirects to the given target url preserving query parameters. func redirectWithQuery(w http.ResponseWriter, r *http.Request, target string) { @@ -107,11 +128,11 @@ func registerRedirects(mux *http.ServeMux) { for prefix, baseURL := range prefixHelpers { p := "/" + prefix + "/" - mux.Handle(p, hostRedirectHandler(prefixRedirectHandler(p, baseURL))) + mux.Handle(p, hostRedirectHandler(wrappedHandler(prefixRedirectHandler(p, baseURL)))) } for path, redirect := range redirects { - mux.Handle(path, hostRedirectHandler(redirectHandler(redirect))) + mux.Handle(path, hostRedirectHandler(wrappedHandler(redirectHandler(redirect)))) } } @@ -120,7 +141,7 @@ func registerStatic(mux *http.ServeMux, staticDir string) { if mux == nil { mux = http.DefaultServeMux } - mux.Handle("/", hostRedirectHandler(http.FileServer(http.Dir(staticDir)))) + mux.Handle("/", hostRedirectHandler(wrappedHandler(http.FileServer(http.Dir(staticDir))))) } // registerRebuild registers the rebuild handler. @@ -129,7 +150,7 @@ func registerRebuild(mux *http.ServeMux) { mux = http.DefaultServeMux } - mux.Handle("/rebuild", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + mux.Handle("/rebuild", wrappedHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { ctx := context.Background() credentials, err := google.FindDefaultCredentials(ctx, cloudbuild.CloudPlatformScope) if err != nil { @@ -170,7 +191,7 @@ func registerRebuild(mux *http.ServeMux) { http.Error(w, "run error: "+err.Error(), 500) return } - })) + }))) } func envFlagString(name, def string) string { |