Implemented stream

api/stream.go

@@ -0,0 +1,44 @@
+package api
+
+import (
+	"github.com/deluan/gosonic/utils"
+	"github.com/karlkfi/inject"
+	"github.com/deluan/gosonic/domain"
+	"github.com/deluan/gosonic/api/responses"
+	"github.com/astaxie/beego"
+	"io"
+	"os"
+)
+
+
+type StreamController struct {
+	BaseAPIController
+	repo domain.MediaFileRepository
+}
+
+func (c *StreamController) Prepare() {
+	inject.ExtractAssignable(utils.Graph, &c.repo)
+}
+
+// For realtime transcoding, see : http://stackoverflow.com/questions/19292113/not-buffered-http-responsewritter-in-golang
+func (c *StreamController) Get() {
+	id := c.ValidateParameters("id", "id parameter required")
+
+	mf, err := c.repo.Get(id)
+	if err != nil {
+		beego.Error("Error reading mediafile", id, "from the database", ":", err)
+		c.SendError(responses.ERROR_GENERIC, "Internal error")
+	}
+	beego.Debug("Streaming file", mf.Path)
+
+	f, err := os.Open(mf.Path)
+	if err != nil {
+		beego.Warn("Error opening file", mf.Path, "-", err)
+		c.SendError(responses.ERROR_DATA_NOT_FOUND, "cover art not available")
+	}
+
+	c.Ctx.Output.ContentType(mf.ContentType())
+	io.Copy(c.Ctx.ResponseWriter, f)
+
+	beego.Debug("Finished streaming of", mf.Path)
+}

api/stream_test.go

@@ -0,0 +1,58 @@
+package api_test
+
+import (
+	"testing"
+
+	"github.com/deluan/gosonic/api/responses"
+	"github.com/deluan/gosonic/domain"
+	. "github.com/deluan/gosonic/tests"
+	"github.com/deluan/gosonic/tests/mocks"
+	"github.com/deluan/gosonic/utils"
+	. "github.com/smartystreets/goconvey/convey"
+	"net/http"
+	"net/http/httptest"
+	"github.com/astaxie/beego"
+	"fmt"
+)
+
+func stream(params ...string) (*http.Request, *httptest.ResponseRecorder) {
+	url := AddParams("/rest/stream.view", params...)
+	r, _ := http.NewRequest("GET", url, nil)
+	w := httptest.NewRecorder()
+	beego.BeeApp.Handlers.ServeHTTP(w, r)
+	beego.Debug("testing TestStream", fmt.Sprintf("\nUrl: %s\nStatus Code: [%d]\n%#v", r.URL, w.Code, w.HeaderMap))
+	return r, w
+}
+
+func TestStream(t *testing.T) {
+	Init(t, false)
+
+	mockMediaFileRepo := mocks.CreateMockMediaFileRepo()
+	utils.DefineSingleton(new(domain.MediaFileRepository), func() domain.MediaFileRepository {
+		return mockMediaFileRepo
+	})
+
+	Convey("Subject: Stream Endpoint", t, func() {
+		Convey("Should fail if missing Id parameter", func() {
+			_, w := stream()
+
+			So(w.Body, ShouldReceiveError, responses.ERROR_MISSING_PARAMETER)
+		})
+		Convey("When id is not found", func() {
+			mockMediaFileRepo.SetData(`[]`, 1)
+			_, w := stream("id=NOT_FOUND")
+
+			So(w.Body, ShouldReceiveError, responses.ERROR_DATA_NOT_FOUND)
+		})
+		Convey("When id is found", func() {
+			mockMediaFileRepo.SetData(`[{"Id":"2","HasCoverArt":true,"Path":"tests/fixtures/01 Invisible (RED) Edit Version.mp3"}]`, 1)
+			_, w := stream("id=2")
+
+			So(w.Body.Bytes(), ShouldMatchMD5, "258dd4f0e70ee5c8dee3cb33c966acec")
+		})
+		Reset(func() {
+			mockMediaFileRepo.SetData("[]", 0)
+			mockMediaFileRepo.SetError(false)
+		})
+	})
+}

conf/router.go

@@ -22,6 +22,7 @@ func mapEndpoints() {
 		beego.NSRouter("/getIndexes.view", &api.GetIndexesController{}, "*:Get"),
 		beego.NSRouter("/getMusicDirectory.view", &api.GetMusicDirectoryController{}, "*:Get"),
 		beego.NSRouter("/getCoverArt.view", &api.GetCoverArtController{}, "*:Get"),
+		beego.NSRouter("/stream.view", &api.StreamController{}, "*:Get"),
 	)
 	beego.AddNamespace(ns)