more sofisticated TP authorization/refresh

rowers/views.py

@@ -1088,12 +1088,15 @@ def tp_open(user):
     else:
 	if (timezone.now()>r.tptokenexpirydate):
 	    res = tpstuff.do_refresh_token(r.tprefreshtoken)
-            r.tptoken = res[0]
-            r.tprefreshtoken = res[2]
-            expirydatetime = timezone.now()+datetime.timedelta(seconds=res[1])
-            r.tptokenexpirydate = expirydatetime
-            r.save()
-            thetoken = r.tptoken
+            if res[0] != 0:
+                r.tptoken = res[0]
+                r.tprefreshtoken = res[2]
+                expirydatetime = timezone.now()+datetime.timedelta(seconds=res[1])
+                r.tptokenexpirydate = expirydatetime
+                r.save()
+                thetoken = r.tptoken
+            else:
+                raise TPNoTokenError("Refresh token invalid")
 	else:
 	    thetoken = r.tptoken
 
@@ -1225,7 +1228,6 @@ def workout_tp_upload_view(request,id=0):
     except TPNoTokenError:
 	return HttpResponseRedirect("/rowers/me/tpauthorize/")
 
-    
     # ready to upload. Hurray
     try:
         w = Workout.objects.get(id=id)