Make Facebook plugin look for API key and secret before doing anything

plugins/Facebook/FacebookPlugin.php

@@ -79,6 +79,25 @@ class FacebookPlugin extends Plugin
         }
     }
 
+    /**
+     * Check to see if there is an API key and secret defined
+     * for Facebook integration.
+     *
+     * @return boolean result
+     */
+
+    static function hasKeys()
+    {
+        $apiKey    = common_config('facebook', 'apikey');
+        $apiSecret = common_config('facebook', 'secret');
+
+        if (!empty($apiKey) && !empty($apiSecret)) {
+            return true;
+        }
+
+        return false;
+    }
+
     /**
      * Add Facebook app actions to the router table
      *
@@ -91,6 +110,9 @@ class FacebookPlugin extends Plugin
 
     function onStartInitializeRouter($m)
     {
+        $m->connect('admin/facebook', array('action' => 'facebookadminpanel'));
+
+        if (self::hasKeys()) {
 
             // Facebook App stuff
 
@@ -100,7 +122,6 @@ class FacebookPlugin extends Plugin
                         array('action' => 'facebooksettings'));
             $m->connect('facebook/app/invite.php', array('action' => 'facebookinvite'));
             $m->connect('facebook/app/remove', array('action' => 'facebookremove'));
-        $m->connect('admin/facebook', array('action' => 'facebookadminpanel'));
 
             // Facebook Connect stuff
 
@@ -108,6 +129,7 @@ class FacebookPlugin extends Plugin
             $m->connect('main/facebooklogin', array('action' => 'FBConnectLogin'));
             $m->connect('settings/facebook', array('action' => 'FBConnectSettings'));
             $m->connect('xd_receiver.html', array('action' => 'FBC_XDReceiver'));
+        }
 
         return true;
     }
@@ -338,6 +360,9 @@ class FacebookPlugin extends Plugin
 
     function reqFbScripts($action)
     {
+        if (!self::hasKeys()) {
+            return false;
+        }
 
         // If you're logged in w/FB Connect, you always need the FB stuff
 
@@ -410,6 +435,8 @@ class FacebookPlugin extends Plugin
 
     function onStartPrimaryNav($action)
     {
+        if (self::hasKeys()) {
+
             $user = common_current_user();
 
             $connect = 'FBConnectSettings';
@@ -448,6 +475,7 @@ class FacebookPlugin extends Plugin
 
                 }
             }
+        }
 
         return true;
     }
@@ -462,6 +490,7 @@ class FacebookPlugin extends Plugin
 
     function onEndLoginGroupNav(&$action)
     {
+        if (self::hasKeys()) {
 
             $action_name = $action->trimmed('action');
 
@@ -469,7 +498,7 @@ class FacebookPlugin extends Plugin
                                                _m('Facebook'),
                                                _m('Login or register using Facebook'),
                                                'FBConnectLogin' === $action_name);
-
+        }
         return true;
     }
 
@@ -483,13 +512,15 @@ class FacebookPlugin extends Plugin
 
     function onEndConnectSettingsNav(&$action)
     {
+        if (self::hasKeys()) {
+
             $action_name = $action->trimmed('action');
 
             $action->menuItem(common_local_url('FBConnectSettings'),
                               _m('Facebook'),
                               _m('Facebook Connect Settings'),
                               $action_name === 'FBConnectSettings');
-
+        }
         return true;
     }
 
@@ -503,6 +534,8 @@ class FacebookPlugin extends Plugin
 
     function onStartLogout($action)
     {
+        if (self::hasKeys()) {
+
             $action->logout();
             $fbuid = $this->loggedIn();
 
@@ -516,7 +549,7 @@ class FacebookPlugin extends Plugin
                                $e->getMessage());
                 }
             }
-
+        }
         return true;
     }
 
@@ -562,7 +595,9 @@ class FacebookPlugin extends Plugin
 
     function onStartEnqueueNotice($notice, &$transports)
     {
+        if (self::hasKeys()) {
             array_push($transports, 'facebook');
+        }
         return true;
     }
 
@@ -575,7 +610,9 @@ class FacebookPlugin extends Plugin
      */
     function onEndInitializeQueueManager($manager)
     {
+        if (self::hasKeys()) {
             $manager->connect('facebook', 'FacebookQueueHandler');
+        }
         return true;
     }