| // Copyright 2012 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. |
| |
| // +build appengine |
| |
| package main |
| |
| import ( |
| "bytes" |
| "fmt" |
| "io" |
| "net/http" |
| |
| "appengine" |
| "appengine/urlfetch" |
| |
| "code.google.com/p/go.talks/pkg/present" |
| ) |
| |
| const runURL = "http://golang.org/compile" |
| |
| var basePath = "./present/" |
| |
| func init() { |
| playScript("/static/jquery.js", "/static/playground.js") |
| present.PlayEnabled = true |
| http.HandleFunc("/compile", compile) |
| } |
| |
| func compile(w http.ResponseWriter, r *http.Request) { |
| c := appengine.NewContext(r) |
| b := new(bytes.Buffer) |
| if err := passThru(c, b, r); err != nil { |
| http.Error(w, "Compile server error.", http.StatusInternalServerError) |
| c.Errorf("passThru: %v", err) |
| return |
| } |
| io.Copy(w, b) |
| } |
| |
| func passThru(c appengine.Context, w io.Writer, req *http.Request) error { |
| client := urlfetch.Client(c) |
| defer req.Body.Close() |
| r, err := client.Post(runURL, req.Header.Get("Content-type"), req.Body) |
| if err != nil { |
| return fmt.Errorf("making POST request: %v", err) |
| } |
| defer r.Body.Close() |
| if _, err := io.Copy(w, r.Body); err != nil { |
| return fmt.Errorf("copying response Body: %v", err) |
| } |
| return nil |
| } |