Allow users to opt out of sending linkbacks

plugins/Linkback/LinkbackPlugin.php

@@ -65,9 +65,14 @@ class LinkbackPlugin extends Plugin
             // notice content
             $c = $notice->content;
             $this->notice = $notice;
-            // Ignoring results
+
-            common_replace_urls_callback($c,
+            if(!$notice->getProfile()->
-                                         array($this, 'linkbackUrl'));
+                getPref("linkbackplugin", "disable_linkbacks")
+            ) {
+                // Ignoring results
+                common_replace_urls_callback($c,
+                                             array($this, 'linkbackUrl'));
+            }
 
             if($notice->isRepeat()) {
                 $repeat = Notice::getByID($notice->repeat_of);
@@ -315,4 +320,23 @@ class LinkbackPlugin extends Plugin
                                'or <a href="http://www.movabletype.org/docs/mttrackback.html">Trackback</a> protocols.'));
         return true;
     }
+
+    public function onStartInitializeRouter(URLMapper $m)
+    {
+        $m->connect('settings/linkback', array('action' => 'linkbacksettings'));
+        return true;
+    }
+
+    function onEndAccountSettingsNav($action)
+    {
+        $action_name = $action->trimmed('action');
+
+        $action->menuItem(common_local_url('linkbacksettings'),
+                          // TRANS: OpenID plugin menu item on user settings page.
+                          _m('MENU', 'Send Linkbacks'),
+                          // TRANS: OpenID plugin tooltip for user settings menu item.
+                          _m('Opt-out of sending linkbacks.'),
+                          $action_name === 'linkbacksettings');
+        return true;
+    }
 }

plugins/Linkback/actions/linkbacksettings.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Settings for Linkback
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Settings
+ * @package   StatusNet
+ * @author    Stephen Paul Weber <singpolyma@singpolyma.net>
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ */
+
+if (!defined('GNUSOCIAL')) { exit(1); }
+
+/**
+ * Settings for Linkback
+ *
+ * Lets users opt out of sending linkbacks
+ *
+ * @category Settings
+ * @author   Stephen Paul Weber <singpolyma@singpolyma.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ */
+class LinkbacksettingsAction extends SettingsAction
+{
+    /**
+     * Title of the page
+     *
+     * @return string Page title
+     */
+    function title()
+    {
+        // TRANS: Title of Linkback settings page for a user.
+        return _m('TITLE','Linkback settings');
+    }
+
+    /**
+     * Instructions for use
+     *
+     * @return string Instructions for use
+     */
+    function getInstructions()
+    {
+        // TRANS: Form instructions for Linkback settings.
+        return _m('Linkbacks inform post authors when you link to them. ' .
+                 'You can disable this feature here.');
+    }
+
+    function showContent()
+    {
+        $this->elementStart('form', array('method' => 'post',
+                                          'class' => 'form_settings',
+                                          'action' =>
+                                          common_local_url('linkbacksettings')));
+        $this->hidden('token', common_session_token());
+
+        $this->elementStart('fieldset');
+        $this->element('legend', null, _m('LEGEND','Preferences'));
+        $this->checkbox('disable_linkbacks', "Opt out of sending linkbacks for URLs you post", $this->scoped->getPref("linkbackplugin", "disable_linkbacks"));
+        // TRANS: Button text to save OpenID prefs
+        $this->submit('settings_linkback_prefs_save', _m('BUTTON','Save'), 'submit', 'save_prefs');
+        $this->elementEnd('fieldset');
+
+        $this->elementEnd('form');
+    }
+
+    /**
+     * Handle a POST request
+     *
+     * @return void
+     */
+    protected function doPost()
+    {
+        $x = $this->scoped->setPref("linkbackplugin", "disable_linkbacks", $this->boolean('disable_linkbacks'));
+
+        return _m('Linkback preferences saved.');
+    }
+}