+++ /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