Check subscription (#196)

* Access reports only if there is a subscription

* custom error message when not enterprise

nethesis/ns8-nethvoice#207

api/middleware/middleware.go

@@ -38,6 +38,8 @@ import (
 	"github.com/nethesis/nethvoice-report/api/methods"
 	"github.com/nethesis/nethvoice-report/api/models"
 	"github.com/nethesis/nethvoice-report/api/utils"
+
+	"os"
 )
 
 type login struct {
@@ -75,6 +77,14 @@ func InitJWT() *jwt.GinJWTMiddleware {
 			username := loginVals.Username
 			password := loginVals.Password
 
+			// check subscription
+			subscription_systemid := os.Getenv("SUBSCRIPTION_SYSTEMID")
+			subscription_secret := os.Getenv("SUBSCRIPTION_SECRET")
+			if subscription_systemid == "" || subscription_secret == "" {
+				utils.LogError(errors.New("Error! Reports available only on Enterprise version."))
+				return nil, errors.New("Reports available only on Enterprise version")
+			}
+
 			// check if login is with API key or User and Password
 			if username == "X" {
 				// try API key authentication