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go.tools/{cmd/present,playground/socket}: add orighost flag to handle the web origin more flexible

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Also fixes the following nits;
- literal IPv6 address handling
- URL host component handling in the case of a wildcard listen
- URL port component handling in the case of no port component in origin

Fixes golang/go#8096.

LGTM=dan.kortschak, adg
R=adg, golang-codereviews, dan.kortschak
CC=golang-codereviews
https://golang.org/cl/102770046
This commit is contained in:
Mikio Hara 2014-06-02 21:39:33 +09:00
parent 707c7629cb
commit 96cece04e7
2 changed files with 44 additions and 19 deletions
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55
cmd/present/local.go
View File

@ -24,16 +24,14 @@ import (
const basePkg = "code.google.com/p/go.tools/cmd/present"
var (
basePath string
nativeClient bool
)
var basePath string
func main() {
httpListen := flag.String("http", "127.0.0.1:3999", "host:port to listen on")
httpAddr := flag.String("http", "127.0.0.1:3999", "HTTP service address (e.g., '127.0.0.1:3999')")
originHost := flag.String("orighost", "", "host component of web origin URL (e.g., 'localhost')")
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)")
flag.BoolVar(&nativeClient, "nacl", false, "use Native Client environment playground (prevents non-Go code execution)")
nativeClient := flag.Bool("nacl", false, "use Native Client environment playground (prevents non-Go code execution)")
flag.Parse()
if basePath == "" {
@ -46,8 +44,36 @@ func main() {
basePath = p.Dir
}
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 {
if nativeClient {
if *nativeClient {
socket.RunScripts = false
socket.Environ = func() []string {
if runtime.GOARCH == "amd64" {
@ -57,24 +83,17 @@ func main() {
}
}
playScript(basePath, "SocketTransport")
host, port, err := net.SplitHostPort(*httpListen)
if err != nil {
log.Fatal(err)
}
origin := &url.URL{Scheme: "http", Host: host + ":" + port}
http.Handle("/socket", socket.NewHandler(origin))
}
http.Handle("/static/", http.FileServer(http.Dir(basePath)))
if !strings.HasPrefix(*httpListen, "127.0.0.1") &&
!strings.HasPrefix(*httpListen, "localhost") &&
present.PlayEnabled && !nativeClient {
if !ln.Addr().(*net.TCPAddr).IP.IsLoopback() &&
present.PlayEnabled && !*nativeClient {
log.Print(localhostWarning)
}
log.Printf("Open your web browser and visit http://%s/", *httpListen)
log.Fatal(http.ListenAndServe(*httpListen, nil))
log.Printf("Open your web browser and visit %s", origin.String())
log.Fatal(http.Serve(ln, nil))
}
func playable(c present.Code) bool {

8
playground/socket/socket.go
View File

@ -22,6 +22,7 @@ import (
"io"
"io/ioutil"
"log"
"net"
"net/http"
"net/url"
"os"
@ -84,7 +85,12 @@ func handshake(c *websocket.Config, req *http.Request) error {
log.Println("bad websocket origin:", err)
return websocket.ErrBadWebSocketOrigin
}
ok := c.Origin.Scheme == o.Scheme && c.Origin.Host == o.Host
_, port, err := net.SplitHostPort(c.Origin.Host)
if err != nil {
log.Println("bad websocket origin:", err)
return websocket.ErrBadWebSocketOrigin
}
ok := c.Origin.Scheme == o.Scheme && (c.Origin.Host == o.Host || c.Origin.Host == net.JoinHostPort(o.Host, port))
if !ok {
log.Println("bad websocket origin:", o)
return websocket.ErrBadWebSocketOrigin