--- /dev/null
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+ "flag"
+ "fmt"
+ "go/build"
+ "log"
+ "net"
+ "net/http"
+ "net/url"
+ "os"
+ "strings"
+
+ "golang.org/x/tools/present"
+)
+
+const basePkg = "golang.org/x/tools/cmd/present"
+
+var (
+ 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')")
+ basePath = flag.String("base", "", "base path for slide template and static resources")
+ contentPath = flag.String("content", ".", "base path for presentation content")
+ usePlayground = flag.Bool("use_playground", false, "run code snippets using play.golang.org; if false, run them locally and deliver results by WebSocket transport")
+ nativeClient = flag.Bool("nacl", false, "use Native Client environment playground (prevents non-Go code execution) when using local WebSocket transport")
+)
+
+func main() {
+ flag.BoolVar(&present.PlayEnabled, "play", true, "enable playground (permit execution of arbitrary user code)")
+ flag.BoolVar(&present.NotesEnabled, "notes", false, "enable presenter notes (press 'N' from the browser to display them)")
+ flag.Parse()
+
+ if os.Getenv("GAE_ENV") == "standard" {
+ log.Print("Configuring for App Engine Standard")
+ port := os.Getenv("PORT")
+ if port == "" {
+ port = "8080"
+ }
+ *httpAddr = fmt.Sprintf("0.0.0.0:%s", port)
+ pwd, err := os.Getwd()
+ if err != nil {
+ log.Fatalf("Couldn't get pwd: %v\n", err)
+ }
+ *basePath = pwd
+ *usePlayground = true
+ *contentPath = "./content/"
+ }
+
+ if *basePath == "" {
+ p, err := build.Default.Import(basePkg, "", build.FindOnly)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Couldn't find gopresent files: %v\n", 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 != "" {
+ if strings.HasPrefix(*originHost, "https://") {
+ *originHost = strings.TrimPrefix(*originHost, "https://")
+ origin.Scheme = "https"
+ }
+ *originHost = strings.TrimPrefix(*originHost, "http://")
+ 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
+ }
+ }
+
+ initPlayground(*basePath, origin)
+ http.Handle("/static/", http.FileServer(http.Dir(*basePath)))
+
+ if !ln.Addr().(*net.TCPAddr).IP.IsLoopback() &&
+ present.PlayEnabled && !*nativeClient && !*usePlayground {
+ log.Print(localhostWarning)
+ }
+
+ log.Printf("Open your web browser and visit %s", origin.String())
+ if present.NotesEnabled {
+ log.Println("Notes are enabled, press 'N' from the browser to display them.")
+ }
+ log.Fatal(http.Serve(ln, nil))
+}
+
+func environ(vars ...string) []string {
+ env := os.Environ()
+ for _, r := range vars {
+ k := strings.SplitAfter(r, "=")[0]
+ var found bool
+ for i, v := range env {
+ if strings.HasPrefix(v, k) {
+ env[i] = r
+ found = true
+ }
+ }
+ if !found {
+ env = append(env, r)
+ }
+ }
+ return env
+}
+
+const basePathMessage = `
+By default, gopresent locates the slide template files and associated
+static content by looking for a %q package
+in your Go workspaces (GOPATH).
+
+You may use the -base flag to specify an alternate location.
+`
+
+const localhostWarning = `
+WARNING! WARNING! WARNING!
+
+The present server appears to be listening on an address that is not localhost
+and is configured to run code snippets locally. Anyone with access to this address
+and port will have access to this machine as the user running present.
+
+To avoid this message, listen on localhost, run with -play=false, or run with
+-play_socket=false.
+
+If you don't understand this message, hit Control-C to terminate this process.
+
+WARNING! WARNING! WARNING!
+`
projects / dotfiles / .git / blobdiff