[security] improving the security scheme (#1587)

* [security] improving the security scheme

* Addressing comments

* improving docs

* Creating security module to organize things

* Moving CLI to its own module

* perms

* Materializung perms

* progrss

* Addressing comments, linting

superset/assets/javascripts/SqlLab/actions.js

@@ -158,7 +158,7 @@ export function setNetworkStatus(networkOn) {
 export function addAlert(alert) {
   const o = Object.assign({}, alert);
   o.id = shortid.generate();
-  return { type: ADD_ALERT, o };
+  return { type: ADD_ALERT, alert: o };
 }
 
 export function removeAlert(alert) {

superset/assets/javascripts/SqlLab/components/DatabaseSelect.jsx

@@ -2,6 +2,13 @@ const $ = window.$ = require('jquery');
 import React from 'react';
 import Select from 'react-select';
 
+const propTypes = {
+  onChange: React.PropTypes.func,
+  actions: React.PropTypes.object,
+  databaseId: React.PropTypes.number,
+  valueRenderer: React.PropTypes.func,
+};
+
 class DatabaseSelect extends React.PureComponent {
   constructor(props) {
     super(props);
@@ -23,6 +30,12 @@ class DatabaseSelect extends React.PureComponent {
       const options = data.result.map((db) => ({ value: db.id, label: db.database_name }));
       this.setState({ databaseOptions: options, databaseLoading: false });
       this.props.actions.setDatabases(data.result);
+      if (data.result.length === 0) {
+        this.props.actions.addAlert({
+          bsStyle: 'danger',
+          msg: "It seems you don't have access to any database",
+        });
+      }
     });
   }
   render() {
@@ -43,11 +56,6 @@ class DatabaseSelect extends React.PureComponent {
   }
 }
 
-DatabaseSelect.propTypes = {
-  onChange: React.PropTypes.func,
-  actions: React.PropTypes.object,
-  databaseId: React.PropTypes.number,
-  valueRenderer: React.PropTypes.func,
-};
+DatabaseSelect.propTypes = propTypes;
 
 export default DatabaseSelect;