| // 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 ( |
| "context" |
| "flag" |
| "fmt" |
| "io" |
| "log" |
| "net/http" |
| "os" |
| |
| "cloud.google.com/go/compute/metadata" |
| "cloud.google.com/go/datastore" |
| "golang.org/x/tools/godoc/static" |
| ) |
| |
| var datastoreClient *datastore.Client |
| |
| func main() { |
| flag.Parse() |
| |
| var err error |
| datastoreClient, err = datastore.NewClient(context.Background(), projectID()) |
| if err != nil { |
| log.Fatal(err) |
| } |
| |
| http.Handle("/", hstsHandler(edit)) |
| http.Handle("/compile", hstsHandler(compile)) |
| http.Handle("/fmt", hstsHandler(fmtHandler)) |
| http.Handle("/share", hstsHandler(share)) |
| http.Handle("/playground.js", hstsHandler(play)) |
| staticHandler := http.StripPrefix("/static/", http.FileServer(http.Dir("./static"))) |
| http.Handle("/static/", hstsHandler(staticHandler.(http.HandlerFunc))) |
| http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) { |
| http.ServeFile(w, r, "./static/favicon.ico") |
| }) |
| http.HandleFunc("/_ah/health", func(w http.ResponseWriter, r *http.Request) { |
| fmt.Fprintf(w, "ok") |
| }) |
| port := os.Getenv("PORT") |
| if port == "" { |
| port = "8080" |
| } |
| log.Printf("Listening on :%v ...", port) |
| log.Fatal(http.ListenAndServe(":"+port, nil)) |
| } |
| |
| func projectID() string { |
| id := os.Getenv("DATASTORE_PROJECT_ID") |
| if id != "" { |
| return id |
| } |
| id, err := metadata.ProjectID() |
| if err != nil { |
| log.Fatalf("Could not determine the project ID (%v); If running locally, ensure DATASTORE_PROJECT_ID is set.", err) |
| } |
| return id |
| } |
| |
| func play(w http.ResponseWriter, r *http.Request) { |
| w.Header().Set("Content-type", "text/javascript") |
| io.WriteString(w, static.Files["playground.js"]) |
| } |