add test and fix for POST without body and Content-type, issue #492

jsr311.go

@@ -151,6 +151,16 @@ func (r RouterJSR311) detectRoute(routes []Route, httpRequest *http.Request) (*R
 		for _, candidate := range previous {
 			available = append(available, candidate.Produces...)
 		}
+		// if POST,PUT,PATCH without body
+		method, length := httpRequest.Method, httpRequest.Header.Get("Content-Length")
+		if (method == http.MethodPost ||
+			method == http.MethodPut ||
+			method == http.MethodPatch) && length == "" {
+			return nil, NewError(
+				http.StatusUnsupportedMediaType,
+				fmt.Sprintf("415: Unsupported Media Type\n\nAvailable representations: %s", strings.Join(available, ", ")),
+			)
+		}
 		return nil, NewError(
 			http.StatusNotAcceptable,
 			fmt.Sprintf("406: Not Acceptable\n\nAvailable representations: %s", strings.Join(available, ", ")),

web_service_test.go

@@ -124,6 +124,20 @@ Available representations: text/plain, application/json`
 	}
 }
 
+func TestUnsupportedMedia_Issue492(t *testing.T) {
+	tearDown()
+	Add(newPostTestService())
+	for _, method := range []string{"POST", "PUT", "PATCH"} {
+		httpRequest, _ := http.NewRequest(method, "http://here.com/test", nil)
+		httpRequest.Header.Set("Accept", "application/json")
+		httpWriter := httptest.NewRecorder()
+		DefaultContainer.dispatch(httpWriter, httpRequest)
+		if 415 != httpWriter.Code {
+			t.Errorf("[%s] 415 expected got %d", method, httpWriter.Code)
+		}
+	}
+}
+
 func TestSelectedRoutePath_Issue100(t *testing.T) {
 	tearDown()
 	Add(newSelectedRouteTestingService())
@@ -376,6 +390,16 @@ func newPostNoConsumesService() *WebService {
 	return ws
 }
 
+func newPostTestService() *WebService {
+	ws := new(WebService).Path("")
+	ws.Consumes("application/json")
+	ws.Produces("application/json")
+	ws.Route(ws.POST("/test").To(doNothing))
+	ws.Route(ws.PUT("/test").To(doNothing))
+	ws.Route(ws.PATCH("/test").To(doNothing))
+	return ws
+}
+
 func newSelectedRouteTestingService() *WebService {
 	ws := new(WebService).Path("")
 	ws.Route(ws.GET(pathGetFriends).To(selectedRouteChecker))