Added whitelist/blacklist filter option; Updated readme (#86)

Author: qschmick

README.md

@@ -104,6 +104,23 @@ Example filters
 
 This feature uses [fnmatch](http://php.net/manual/en/function.fnmatch.php) syntax to filter displayed commands. `stats:*` will match all Artisan commands that start with `stats:` while `email:daily-reports` will only match the command named `email:daily-reports`.
 
+This filter can be used as either a whitelist or a blacklist. By default it acts as a whitelist but an option flag can be set to instead act as a blacklist.
+
+```php
+'artisan' => [
+    'command_filter' => [
+        'stats:*',
+        'email:daily-reports'
+    ],
+    'whitelist' => true,
+],
+
+```
+
+If the value of whitelist is `false` then the filter acts as a blacklist.
+
+`'whitelist' => false`
+
 #### Middleware
 
 `Laravel Totem` uses the default web and api middleware but if customization is required the middleware can be changed by setting the appropriate `.env` value. These values can be found in `config/totem.php`.

config/totem.php

@@ -225,5 +225,6 @@
     'table_prefix' => env('TOTEM_TABLE_PREFIX', ''),
     'artisan' => [
         'command_filter' => [],
+        'whitelist' => true,
     ],
 ];

src/Totem.php

@@ -4,6 +4,7 @@
 
 use Closure;
 use Illuminate\Support\Facades\Artisan;
+use Symfony\Component\Console\Command\Command;
 
 class Totem
 {
@@ -17,7 +18,8 @@ class Totem
     /**
      * Determine if the given request can access the Totem dashboard.
      *
-     * @param  \Illuminate\Http\Request  $request
+     * @param \Illuminate\Http\Request $request
+     *
      * @return bool
      */
     public static function check($request)
@@ -30,14 +32,15 @@ public static function check($request)
     /**
      * Set the callback that should be used to authenticate Totem users.
      *
-     * @param  \Closure  $callback
+     * @param \Closure $callback
+     *
      * @return static
      */
     public static function auth(Closure $callback)
     {
         static::$authUsing = $callback;
 
-        return new static;
+        return new static();
     }
 
     /**
@@ -58,21 +61,22 @@ public static function frequencies()
     public static function getCommands()
     {
         $command_filter = config('totem.artisan.command_filter');
+        $whitelist = config('totem.artisan.whiltelist', true);
         $all_commands = collect(Artisan::all());
 
         if (! empty($command_filter)) {
-            $all_commands = $all_commands->filter(function ($command) use ($command_filter) {
+            $all_commands = $all_commands->filter(function (Command $command) use ($command_filter, $whitelist) {
                 foreach ($command_filter as $filter) {
                     if (fnmatch($filter, $command->getName())) {
-                        return true;
+                        return $whitelist;
                     }
                 }
 
-                return false;
+                return ! $whitelist;
             });
         }
 
-        return $all_commands->sortBy(function ($command) {
+        return $all_commands->sortBy(function (Command $command) {
             return $command->getDescription();
         });
     }