#3: Implemented security when viewing an album and its photos

.idea/deployment.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="PublishConfigData" serverName="Development">
+  <component name="PublishConfigData" autoUpload="On explicit save action" serverName="Development">
     <serverData>
       <paths name="Development">
         <serverdata>
@@ -10,5 +10,6 @@
         </serverdata>
       </paths>
     </serverData>
+    <option name="myAutoUpload" value="ON_EXPLICIT_SAVE" />
   </component>
 </project>

app/Helpers/DbHelper.php

@@ -66,10 +66,8 @@ class DbHelper
             ->withCount('photos');
     }
 
-    public static function getAlbumByAliasForCurrentUser($urlAlias)
+    public static function getAlbumByAlias($urlAlias)
     {
-        $album = Album::where('url_alias', $urlAlias)->first();
-
-        return $album;
+        return Album::where('url_alias', $urlAlias)->first();
     }
 }

app/Http/Controllers/Gallery/AlbumController.php

@@ -17,13 +17,15 @@ class AlbumController extends Controller
 {
     public function index(Request $request, $albumUrlAlias)
     {
-        $album = DbHelper::getAlbumByAliasForCurrentUser($albumUrlAlias);
+        $album = DbHelper::getAlbumByAlias($albumUrlAlias);
         if (is_null($album))
         {
             App::abort(404);
             return null;
         }
 
+        $this->authorizeForUser($this->getUser(), 'view', $album);
+
         $validViews = UserConfig::allowedAlbumViews();
         $requestedView = strtolower($request->get('view'));
         if (!in_array($requestedView, $validViews))
@@ -36,8 +38,6 @@ class AlbumController extends Controller
             }
         }
 
-        $this->authorizeForUser($this->getUser(), 'album.view', $album);
-
         if ($album->photos()->count() == 0)
         {
             $requestedView = 'empty';

app/Http/Controllers/Gallery/PhotoController.php

@@ -20,14 +20,14 @@ class PhotoController extends Controller
 {
     public function download(Request $request, $albumUrlAlias, $photoFilename)
     {
-        $album = DbHelper::getAlbumByAliasForCurrentUser($albumUrlAlias);
+        $album = DbHelper::getAlbumByAlias($albumUrlAlias);
         if (is_null($album))
         {
             App::abort(404);
             return null;
         }
 
-        $this->authorizeForUser($this->getUser(), 'album.view', $album);
+        $this->authorizeForUser($this->getUser(), 'view', $album);
 
         if (UserConfig::get('hotlink_protection'))
         {
@@ -75,14 +75,14 @@ class PhotoController extends Controller
 
     public function show(Request $request, $albumUrlAlias, $photoFilename)
     {
-        $album = DbHelper::getAlbumByAliasForCurrentUser($albumUrlAlias);
+        $album = DbHelper::getAlbumByAlias($albumUrlAlias);
         if (is_null($album))
         {
             App::abort(404);
             return null;
         }
 
-        $this->authorizeForUser($this->getUser(), 'album.view', $album);
+        $this->authorizeForUser($this->getUser(), 'view', $album);
 
         $photo = PhotoController::loadPhotoByAlbumAndFilename($album, $photoFilename);
 

app/Policies/AlbumPolicy.php

@@ -45,6 +45,37 @@ class AlbumPolicy
             'description' => 'edit'
         ])->first();
 
+        return $this->userHasPermission($user, $album, $permission);
+    }
+
+    public function view(User $user, Album $album)
+    {
+        if ($user->id == $album->user_id)
+        {
+            // The album's owner and can do everything
+            return true;
+        }
+
+        // Get the edit permission
+        $permission = Permission::where([
+            'section' => 'album',
+            'description' => 'view'
+        ])->first();
+
+        return $this->userHasPermission($user, $album, $permission);
+    }
+
+    private function userHasPermission(User $user, Album $album, Permission $permission)
+    {
+        if ($user->isAnonymous())
+        {
+            $query = Album::query()->join('album_anonymous_permissions', 'album_anonymous_permissions.album_id', '=', 'albums.id')
+                ->join('permissions', 'permissions.id', '=', 'album_anonymous_permissions.permission_id')
+                ->where('permissions.id', $permission->id);
+
+            return $query->count() > 0;
+        }
+
         // If any of the user's groups are granted the permission
         /** @var Group $group */
         foreach ($user->groups as $group)

app/User.php

@@ -45,4 +45,9 @@ class User extends Authenticatable
     {
         return $this->belongsToMany(Group::class, 'user_groups');
     }
+
+    public function isAnonymous()
+    {
+        return $this->id == -1 && $this->name == 'Anonymous';
+    }
 }

resources/views/themes/base/gallery/album_default.blade.php

@@ -35,7 +35,7 @@
                             <h4 class="card-title"><a href="{{ $photo->url() }}">{{ $photo->name }}</a></h4>
                         </div>
                         <div class="card-footer">
-                            <small class="text-muted"><i class="fa fa-fw fa-calendar"></i> {{ date('Y-m-d H:i', $photo->taken_at) }}</small>
+                            <small class="text-muted"><i class="fa fa-fw fa-calendar"></i> {{ date('Y-m-d H:i', strtotime(!is_null($photo->taken_at) ? $photo->taken_at : $photo->created_at)) }}</small>
                         </div>
                     </div>
                 </div>

resources/views/themes/base/gallery/photo.blade.php

@@ -2,21 +2,15 @@
 @section('title', $photo->name)
 
 @section('breadcrumb')
-    <div class="breadcrumb">
-        <div class="container">
-            <ol class="breadcrumb">
-                <li><a href="{{ route('home') }}">Gallery</a></li>
-                <li><a href="{{ $return_album_url }}">{{ $photo->album->name }}</a></li>
-                <li class="active">{{ $photo->name }}</li>
-            </ol>
-        </div>
-    </div>
+    <li class="breadcrumb-item"><a href="{{ route('home') }}">Gallery</a></li>
+    <li class="breadcrumb-item"><a href="{{ $return_album_url }}">{{ $photo->album->name }}</a></li>
+    <li class="breadcrumb-item active">{{ $photo->name }}</li>
 @endsection
 
 @section('content')
     <div class="container">
         <div class="row">
-            <div class="col-xs-12">
+            <div class="col">
                 <h1>{{ $photo->name }}</h1>
                 @if (strlen($photo->description) > 0)
                     <p>{{ $photo->description }}</p>
@@ -25,7 +19,7 @@
         </div>
 
         <div class="row">
-            <div class="col-xs-12 col-sm-8 content-body">
+            <div class="col-sm-8 content-body">
                 @if ($is_original_allowed)
                     <a href="{{ $photo->thumbnailUrl() }}">
                 @endif
@@ -35,11 +29,11 @@
                 @endif
             </div>
 
-            <div class="col-xs-12 col-sm-4">
-                <div class="panel panel-default">
-                    <div class="panel-heading">Information about this photo:</div>
-                    <div class="panel-body no-padding">
-                        <table class="table table-striped photo-metadata no-margin-bottom">
+            <div class="col-sm-4">
+                <div class="card">
+                    <div class="card-header">Information about this photo:</div>
+                    <div class="card-block" style="padding: 0;">
+                        <table class="table table-striped photo-metadata mb-0">
                             <thead>
                                 <tr>
                                     <th>Name</th>
@@ -87,8 +81,8 @@
         </div>
 
         <div class="row">
-            <div class="col-xs-12">
-                <a href="{{ $return_album_url }}" class="btn btn-default">@lang('gallery.back_to_album', ['name' => $photo->album->name])</a>
+            <div class="col mt-4">
+                <a href="{{ $return_album_url }}" class="btn btn-secondary">&laquo; @lang('gallery.back_to_album', ['name' => $photo->album->name])</a>
             </div>
         </div>
     </div>

resources/views/themes/base/partials/album_permissions.blade.php

@@ -12,12 +12,8 @@
                 <div class="col-md-4">
                     <h5>Album Permissions</h5>
 
-                    @php ($permission = Theme::getPermission($all_permissions, 'album', 'list'))
-                    <div class="checkbox">
-                        <label for="permission|{{ $key_id }}|{{ $permission->id }}">
-                            <input id="permission|{{ $key_id }}|{{ $permission->id }}" name="permissions[{{ $object_id }}][]" value="{{ $permission->id }}" type="checkbox"{{ call_user_func($callback, $callback_object, $permission) ? ' checked="checked"' : '' }} /> {{ trans(sprintf('permissions.%s.%s', $permission->section, $permission->description)) }}
-                        </label>
-                    </div>
+                    @include(Theme::viewName('partials.permission_checkbox'), ['permission' => Theme::getPermission($all_permissions, 'album', 'list')])
+                    @include(Theme::viewName('partials.permission_checkbox'), ['permission' => Theme::getPermission($all_permissions, 'album', 'view')])
                 </div>
             </div>
 

resources/views/themes/base/partials/permission_checkbox.blade.php

@@ -0,0 +1,5 @@
+<div class="checkbox">
+    <label for="permission|{{ $key_id }}|{{ $permission->id }}">
+        <input id="permission|{{ $key_id }}|{{ $permission->id }}" name="permissions[{{ $object_id }}][]" value="{{ $permission->id }}" type="checkbox"{{ call_user_func($callback, $callback_object, $permission) ? ' checked="checked"' : '' }} /> {{ trans(sprintf('permissions.%s.%s', $permission->section, $permission->description)) }}
+    </label>
+</div>