flag.StringVar(&basePath, "base", "", "base path for slide template and static resources")
flag.BoolVar(&present.PlayEnabled, "play", true, "enable playground (permit execution of arbitrary user code)")
nativeClient := flag.Bool("nacl", false, "use Native Client environment playground (prevents non-Go code execution)")
flag.Parse()
if basePath == "" {
p, err := build.Default.Import(basePkg, "", build.FindOnly)
if err != nil {
fmt.Fprintf(os.Stderr, "Couldn't find gopresent files: %vn", err)
fmt.Fprintf(os.Stderr, basePathMessage, basePkg)
os.Exit(1)
}
basePath = p.Dir
}
err := initTemplates(basePath)
if err != nil {
log.Fatalf("Failed to parse templates: %v", err)
}
ln, err := net.Listen("tcp", *httpAddr)
if err != nil {
log.Fatal(err)
}
defer ln.Close()
_, port, err := net.SplitHostPort(ln.Addr().String())
if err != nil {
log.Fatal(err)
}
origin := &url.URL{Scheme: "http"}
if *originHost != "" {
origin.Host = net.JoinHostPort(*originHost, port)
} else if ln.Addr().(*net.TCPAddr).IP.IsUnspecified() {
name, _ := os.Hostname()
origin.Host = net.JoinHostPort(name, port)
} else {
reqHost, reqPort, err := net.SplitHostPort(*httpAddr)
if err != nil {
log.Fatal(err)
}
if reqPort == "0" {
origin.Host = net.JoinHostPort(reqHost, port)
} else {
origin.Host = *httpAddr
}
}
if present.PlayEnabled {
