plugins/ActivityModeration/ActivityModerationPlugin.php

   1 <?php
   2
   3 /**
   4  * @package     Activity
   5  * @maintainer  Mikael Nordfeldth <mmn@hethane.se>
   6  */
   7 class ActivityModerationPlugin extends ActivityVerbHandlerPlugin
   8 {
   9     public function tag()
  10     {
  11         return 'actmod';
  12     }
  13
  14     public function types()
  15     {
  16         return array();
  17     }
  18
  19     public function verbs()
  20     {
  21         return array(ActivityVerb::DELETE);
  22     }
  23
  24     public function onBeforePluginCheckSchema()
  25     {
  26         Deleted_notice::beforeSchemaUpdate();
  27         return true;
  28     }
  29
  30     public function onCheckSchema()
  31     {
  32         $schema = Schema::get();
  33         $schema->ensureTable('deleted_notice', Deleted_notice::schemaDef());
  34         return true;
  35     }
  36
  37     protected function getActionTitle(ManagedAction $action, $verb, Notice $target, Profile $scoped)
  38     {
  39         // FIXME: switch based on action type
  40         return _m('TITLE', 'Notice moderation');
  41     }
  42
  43     protected function doActionPreparation(ManagedAction $action, $verb, Notice $target, Profile $scoped)
  44     {
  45         // pass
  46     }
  47
  48     protected function doActionPost(ManagedAction $action, $verb, Notice $target, Profile $scoped)
  49     {
  50         switch (true) {
  51         case ActivityUtils::compareVerbs($verb, array(ActivityVerb::DELETE)):
  52             // do whatever preparation is necessary to delete a verb
  53             $target->delete();
  54             break;
  55         default:
  56             throw new ServerException('ActivityVerb POST not handled by plugin that was supposed to do it.');
  57         }
  58     }
  59
  60     public function deleteRelated(Notice $notice)
  61     {
  62         if ($notice->getProfile()->hasRole(Profile_role::DELETED)) {
  63             // Don't save a new Deleted_notice entry if the profile is being deleted
  64             return true;
  65         }
  66
  67         // For auditing purposes, save a record that the notice was deleted.
  68         return Deleted_notice::addNew($notice);
  69     }
  70
  71     /**
  72      * This is run when a 'delete' verb activity comes in.
  73      *
  74      * @return boolean hook flag
  75      */
  76     protected function saveObjectFromActivity(Activity $act, Notice $stored, array $options=array())
  77     {
  78         // Let's see if this has been deleted already.
  79         $deleted = Deleted_notice::getKV('uri', $act->id);
  80         if ($deleted instanceof Deleted_notice) {
  81             return $deleted;
  82         }
  83
  84         common_debug('DELETING notice: ' . $act->objects[0]->id);
  85         $target = Notice::getByUri($act->objects[0]->id);
  86
  87         $deleted = new Deleted_notice();
  88
  89         $deleted->id            = $target->getID();
  90         $deleted->profile_id    = $target->getProfile()->getID();
  91         $deleted->uri           = Deleted_notice::newUri($target->getProfile(), $target);
  92         $deleted->act_uri       = $target->getUri();
  93         $deleted->act_created   = $target->created;
  94         $deleted->created       = common_sql_now();
  95
  96         common_debug('DELETING notice, storing Deleted_notice entry');
  97         $deleted->insert();
  98
  99         common_debug('DELETING notice, actually deleting now!');
 100         $target->delete();
 101
 102         return $deleted;
 103     }
 104
 105     public function activityObjectFromNotice(Notice $notice)
 106     {
 107         $object = Deleted_notice::fromStored($notice);
 108         return $object->asActivityObject();
 109     }
 110
 111     protected function getActivityForm(ManagedAction $action, $verb, Notice $target, Profile $scoped)
 112     {
 113         if (!$scoped instanceof Profile || !($scoped->sameAs($target->getProfile()) || $scoped->hasRight(Right::DELETEOTHERSNOTICE))) {
 114             throw new AuthorizationException(_('You are not allowed to delete other user\'s notices'));
 115         }
 116         return DeletenoticeForm($action, array('notice'=>$target));
 117     }
 118 }