Exemplo n.º 1
0
func main() {
	verbose := flag.Bool("v", false, "should every proxy request be logged to stdout")
	addr := flag.String("l", ":8080", "on which address should the proxy listen")
	flag.Parse()
	proxy := goproxy.NewProxyHttpServer()
	proxy.Verbose = *verbose
	if err := os.MkdirAll("db", 0755); err != nil {
		log.Fatal("Can't create dir", err)
	}
	logger, err := NewLogger("db")
	if err != nil {
		log.Fatal("can't open log file", err)
	}
	tr := transport.Transport{Proxy: transport.ProxyFromEnvironment}
	// For every incoming request, override the RoundTripper to extract
	// connection information. Store it is session context log it after
	// handling the response.
	proxy.OnRequest().DoFunc(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
		ctx.RoundTripper = goproxy.RoundTripperFunc(func(req *http.Request, ctx *goproxy.ProxyCtx) (resp *http.Response, err error) {
			ctx.UserData, resp, err = tr.DetailedRoundTrip(req)
			return
		})
		logger.LogReq(req, ctx)
		return req, nil
	})
	proxy.OnResponse().DoFunc(func(resp *http.Response, ctx *goproxy.ProxyCtx) *http.Response {
		logger.LogResp(resp, ctx)
		return resp
	})
	l, err := net.Listen("tcp", *addr)
	if err != nil {
		log.Fatal("listen:", err)
	}
	sl := newStoppableListener(l)
	ch := make(chan os.Signal)
	signal.Notify(ch, os.Interrupt)
	go func() {
		<-ch
		log.Println("Got SIGINT exiting")
		sl.Add(1)
		sl.Close()
		logger.Close()
		sl.Done()
	}()
	log.Println("Starting Proxy")
	http.Serve(sl, proxy)
	sl.Wait()
	log.Println("All connections closed - exit")
}
Exemplo n.º 2
0
func main() {
	cwd, _ := os.Getwd()

	verbose := flag.Bool("v", false, "should every proxy request be logged to stdout")
	addr := flag.String("l", ":8080", "on which address should the proxy listen")
	cacheDir := flag.String("p", cwd, "cache directory, by default the working directory")
	flag.Parse()

	proxy := goproxy.NewProxyHttpServer()
	proxy.Verbose = *verbose

	store, err := NewPkgStore(*cacheDir)
	if err != nil {
		log.Fatal(fmt.Printf("Could not create package cache directory: %s", *cacheDir))
	} else {
		log.Printf("Using cache directory: %s", *cacheDir)
	}

	tr := transport.Transport{Proxy: transport.ProxyFromEnvironment}
	r := regexp.MustCompile(`/([^/]+)/os/(i686|x86_64)/(.+\.pkg\.tar.+)`)

	proxy.OnRequest().DoFunc(func(req *http.Request, ctx *goproxy.ProxyCtx) (*http.Request, *http.Response) {
		uri := req.URL.RequestURI()
		if r.MatchString(uri) == true {
			pkgInfo := r.FindStringSubmatch(uri)
			pkgFile := store.NewPkg(pkgInfo[1], pkgInfo[2], pkgInfo[3])
			log.Printf("Request: %s/%s/%s", pkgFile.repo, pkgFile.arch, pkgFile.fname)

			if store.HasPkg(pkgFile) {
				log.Printf("Serving cached package: %s/%s/%s", pkgFile.repo, pkgFile.arch, pkgFile.fname)
				return req, NewCachedResponse(req, store, pkgFile)
			} else {
				ctx.RoundTripper = goproxy.RoundTripperFunc(func(req *http.Request, ctx *goproxy.ProxyCtx) (resp *http.Response, err error) {
					resp, err = tr.RoundTrip(req)
					ctx.UserData = pkgFile
					return
				})
			}
		}
		return req, nil
	})
	proxy.OnResponse().DoFunc(func(resp *http.Response, ctx *goproxy.ProxyCtx) *http.Response {
		if ctx.UserData != nil {
			store.PutPkg(resp, ctx)
		}
		return resp
	})

	l, err := net.Listen("tcp", *addr)
	if err != nil {
		log.Fatal("Listen: ", err)
	}

	sl := newStoppableListener(l)
	ch := make(chan os.Signal)
	signal.Notify(ch, os.Interrupt)
	go func() {
		<-ch
		log.Println("Got SIGINT exiting")
		sl.Add(1)
		sl.Close()
		sl.Done()
	}()

	log.Println("Starting Proxy")
	http.Serve(sl, proxy)
	sl.Wait()
	log.Println("All connections closed - exit")
}