Dashboards: hide playlist edit functionality from viewers and snapshots link from unauthenticated users (#28992)

* feat: hide snapshots menu item from viewers

* feat(playlists): prevent viewers from creating/editing playlists

* feat: prevent viewers seeing playlist nav link if no playlists

* refactor(playlist): rename isViewer property to canEditPlaylists

* revert(playlists): put back note if viewer and no playlists

* refactor(snapshots): consider admin/editor permission in folders/dashboards for displaying menu item

* feat(snapshots): only show snapshot nav item if user is signed in

* fix(snapshots): revert snapshots to previous state if delete snapshot api error

pkg/api/index.go

@@ -164,7 +164,15 @@ func (hs *HTTPServer) getNavTree(c *models.ReqContext, hasEditPerm bool) ([]*dto
 		{Text: "Divider", Divider: true, Id: "divider", HideFromTabs: true},
 		{Text: "Manage", Id: "manage-dashboards", Url: setting.AppSubUrl + "/dashboards", Icon: "sitemap"},
 		{Text: "Playlists", Id: "playlists", Url: setting.AppSubUrl + "/playlists", Icon: "presentation-play"},
-		{Text: "Snapshots", Id: "snapshots", Url: setting.AppSubUrl + "/dashboard/snapshots", Icon: "camera"},
+	}
+
+	if c.IsSignedIn {
+		dashboardChildNavs = append(dashboardChildNavs, &dtos.NavLink{
+			Text: "Snapshots",
+			Id:   "snapshots",
+			Url:  setting.AppSubUrl + "/dashboard/snapshots",
+			Icon: "camera",
+		})
 	}
 
 	navTree = append(navTree, &dtos.NavLink{

public/app/features/manage-dashboards/components/SnapshotListTable.tsx

@@ -1,7 +1,6 @@
 import React, { FC, useState, useCallback, useEffect } from 'react';
 import { ConfirmModal, Button, LinkButton } from '@grafana/ui';
 import { getBackendSrv } from '@grafana/runtime';
-import { noop } from 'rxjs';
 import { Snapshot } from '../types';
 
 interface Props {
@@ -28,11 +27,12 @@ export const SnapshotListTable: FC<Props> = ({ url }) => {
 
   const doRemoveSnapshot = useCallback(
     async (snapshot: Snapshot) => {
-      setSnapshots(snapshots.filter(ss => ss.key !== snapshot.key));
+      const filteredSnapshots = snapshots.filter(ss => ss.key !== snapshot.key);
+      setSnapshots(filteredSnapshots);
       await getBackendSrv()
         .delete(`/api/snapshots/${snapshot.key}`)
-        .then(noop, () => {
-          setSnapshots(snapshots.concat(snapshot));
+        .catch(() => {
+          setSnapshots(snapshots);
         });
     },
     [snapshots]
@@ -59,9 +59,9 @@ export const SnapshotListTable: FC<Props> = ({ url }) => {
           </tr>
         </thead>
         <tbody>
-          {snapshots.map((snapshot, key) => {
+          {snapshots.map(snapshot => {
             return (
-              <tr key={key}>
+              <tr key={snapshot.key}>
                 <td>
                   <a href={snapshot.url}>{snapshot.name}</a>
                 </td>

public/app/features/playlist/partials/playlists.html

@@ -2,7 +2,7 @@
 
 <div class="page-container page-body">
   <div ng-if="ctrl.playlists.length > 0">
-    <div class="page-action-bar">
+    <div class="page-action-bar" ng-if="ctrl.canEditPlaylists">
       <div class="page-action-bar__spacer"></div>
       <a class="btn btn-primary pull-right" href="playlists/create">
         New playlist
@@ -13,11 +13,12 @@
       <thead>
         <th><strong>Name</strong></th>
         <th style="width: 100px"></th>
-        <th style="width: 78px"></th>
+        <th ng-if="ctrl.canEditPlaylists" style="width: 78px"></th>
       </thead>
       <tr ng-repeat="playlist in ctrl.playlists">
-        <td class="link-td">
-          <a href="playlists/edit/{{playlist.id}}">{{playlist.name}}</a>
+        <td ng-class="{'link-td': ctrl.canEditPlaylists}">
+          <a ng-if="ctrl.canEditPlaylists" href="playlists/edit/{{playlist.id}}">{{playlist.name}}</a>
+          <span ng-if="!ctrl.canEditPlaylists">{{playlist.name}}</span>
         </td>
         <td class="dropdown">
           <button class="btn btn-inverse btn-small" data-toggle="dropdown">
@@ -44,7 +45,7 @@
             </li>
           </ul>
         </td>
-        <td  class="text-right">
+        <td ng-if="ctrl.canEditPlaylists" class="text-right">
           <a ng-click="ctrl.removePlaylist(playlist)" class="btn btn-danger btn-small">
             <icon name="'times'"></icon>
           </a>
@@ -53,16 +54,23 @@
     </table>
   </div>
   <div ng-if="ctrl.playlists.length === 0">
-    <empty-list-cta
-      title="'There are no playlists created yet'"
-      buttonIcon="'plus'"
-      buttonLink="'playlists/create'"
-      buttonTitle="'Create Playlist'"
-      proTip="'You can use playlists to cycle dashboards on TVs without user control'"
-      proTipLink="'http://docs.grafana.org/reference/playlist/'"
-      proTipLinkTitle="'Learn more'"
-      proTipTarget="'_blank'" />
+    <div ng-if="ctrl.canEditPlaylists">
+      <empty-list-cta
+        title="'There are no playlists created yet'"
+        buttonIcon="'plus'"
+        buttonLink="'playlists/create'"
+        buttonTitle="'Create Playlist'"
+        proTip="'You can use playlists to cycle dashboards on TVs without user control'"
+        proTipLink="'http://docs.grafana.org/reference/playlist/'"
+        proTipLinkTitle="'Learn more'"
+        proTipTarget="'_blank'" />
+    </div>
+    <div class="grafana-info-box" ng-if="!ctrl.canEditPlaylists">
+      <h5>There are no playlists created yet</h5>
+      <p>Unfortunately you don't have permission to create playlists.</p>
+    </div>
   </div>
+  
 </div>
 
 <footer />

public/app/features/playlist/playlists_ctrl.ts

@@ -1,9 +1,11 @@
 import { IScope } from 'angular';
 import _ from 'lodash';
 import { AppEvents } from '@grafana/data';
+import { OrgRole } from 'app/types';
 import { getBackendSrv } from '@grafana/runtime';
 
 import coreModule from '../../core/core_module';
+import config from '../../core/config';
 import { NavModelSrv } from 'app/core/nav_model_srv';
 import { AppEventEmitter, CoreEvents } from 'app/types';
 import { promiseToDigest } from '../../core/utils/promiseToDigest';
@@ -11,10 +13,13 @@ import { promiseToDigest } from '../../core/utils/promiseToDigest';
 export class PlaylistsCtrl {
   playlists: any;
   navModel: any;
+  canEditPlaylists: boolean;
 
   /** @ngInject */
   constructor(private $scope: IScope & AppEventEmitter, navModelSrv: NavModelSrv) {
     this.navModel = navModelSrv.getNav('dashboards', 'playlists', 0);
+    this.canEditPlaylists = config.bootData.user.orgRole !== OrgRole.Viewer;
+
     promiseToDigest($scope)(
       getBackendSrv()
         .get('/api/playlists')