Make it so the playground can decide which index file to serve. (#223)

* Make it so the playground can decide which index file to serve.
Also remove special index-nw.html and use the current playground config to
decide if to show the windows instances option or not.

* Give a better name to the struct

handlers/bootstrap.go

@@ -77,6 +77,7 @@ func Register(extend HandlerExtender) {
 	r.HandleFunc("/oauth/providers/{provider}/callback", LoginCallback).Methods("GET")
 	r.HandleFunc("/playgrounds", NewPlayground).Methods("PUT")
 	r.HandleFunc("/playgrounds", ListPlaygrounds).Methods("GET")
+	r.HandleFunc("/my/playground", GetCurrentPlayground).Methods("GET")
 
 	corsRouter.HandleFunc("/", NewSession).Methods("POST")
 

handlers/home.go

@@ -1,6 +1,7 @@
 package handlers
 
 import (
+	"fmt"
 	"log"
 	"net/http"
 
@@ -28,8 +29,8 @@ func Home(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if !playground.AllowWindowsInstances {
-		http.ServeFile(w, r, "./www/index-nw.html")
+	if playground.IndexFile != "" {
+		http.ServeFile(w, r, fmt.Sprintf("./www/%s", playground.IndexFile))
 	} else {
 		http.ServeFile(w, r, "./www/index.html")
 	}

handlers/playground.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"time"
 
 	"github.com/play-with-docker/play-with-docker/config"
 	"github.com/play-with-docker/play-with-docker/pwd/types"
@@ -51,6 +52,32 @@ func ListPlaygrounds(rw http.ResponseWriter, req *http.Request) {
 	json.NewEncoder(rw).Encode(playgrounds)
 }
 
+type PlaygroundConfigurationResponse struct {
+	Id                          string        `json:"id"`
+	Domain                      string        `json:"domain"`
+	DefaultDinDInstanceImage    string        `json:"default_dind_instance_image"`
+	AvailableDinDInstanceImages []string      `json:"available_dind_instance_images"`
+	AllowWindowsInstances       bool          `json:"allow_windows_instances"`
+	DefaultSessionDuration      time.Duration `json:"default_session_duration"`
+}
+
+func GetCurrentPlayground(rw http.ResponseWriter, req *http.Request) {
+	playground := core.PlaygroundFindByDomain(req.Host)
+	if playground == nil {
+		log.Printf("Playground for domain %s was not found!", req.Host)
+		rw.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	json.NewEncoder(rw).Encode(PlaygroundConfigurationResponse{
+		Id:     playground.Id,
+		Domain: playground.Domain,
+		DefaultDinDInstanceImage:    playground.DefaultDinDInstanceImage,
+		AvailableDinDInstanceImages: playground.AvailableDinDInstanceImages,
+		AllowWindowsInstances:       playground.AllowWindowsInstances,
+		DefaultSessionDuration:      playground.DefaultSessionDuration,
+	})
+}
+
 func validateToken(req *http.Request) bool {
 	_, password, ok := req.BasicAuth()
 	if !ok {