Function redirect

modules/caddyhttp/fileserver/staticfiles.go:798–809

redirect performs a redirect to a given path. The 'toPath' parameter MUST be solely a path, and MUST NOT include a query.

(w http.ResponseWriter, r *http.Request, toPath string)

// redirect performs a redirect to a given path. The 'toPath' parameter
// MUST be solely a path, and MUST NOT include a query.
func redirect(w http.ResponseWriter, r *http.Request, toPath string) error {
	for strings.HasPrefix(toPath, "//") {
		// prevent path-based open redirects
		toPath = strings.TrimPrefix(toPath, "/")
	}
	// preserve the query string if present
	if r.URL.RawQuery != "" {
		toPath += "?" + r.URL.RawQuery
	}
	http.Redirect(w, r, toPath, http.StatusPermanentRedirect) //nolint:gosec // toPath is a same-origin path and leading // is stripped above
	return nil
}

// statusOverrideResponseWriter intercepts WriteHeader calls
// to instead write the HTTP status code we want instead