gnu-social/plugins/ActivityModeration/ActivityModerationPlugin.php

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<?php
/**
* @package Activity
* @maintainer Mikael Nordfeldth <mmn@hethane.se>
*/
class ActivityModerationPlugin extends ActivityVerbHandlerPlugin
{
public function tag()
{
return 'actmod';
}
public function types()
{
return array();
}
public function verbs()
{
return array(ActivityVerb::DELETE);
}
public function onBeforePluginCheckSchema()
{
Deleted_notice::beforeSchemaUpdate();
return true;
}
public function onCheckSchema()
{
$schema = Schema::get();
$schema->ensureTable('deleted_notice', Deleted_notice::schemaDef());
return true;
}
protected function getActionTitle(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
// FIXME: switch based on action type
return _m('TITLE', 'Notice moderation');
}
protected function doActionPreparation(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
// pass
}
protected function doActionPost(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
switch (true) {
case ActivityUtils::compareVerbs($verb, array(ActivityVerb::DELETE)):
// do whatever preparation is necessary to delete a verb
$target->delete();
break;
default:
throw new ServerException('ActivityVerb POST not handled by plugin that was supposed to do it.');
}
}
public function deleteRelated(Notice $notice)
{
// pass
}
public function onDeleteNoticeAsProfile(Notice $stored, Profile $actor, &$result) {
// By adding a new 'delete' verb we will eventually trigger $this->saveObjectFromActivity
if (false === Deleted_notice::addNew($stored, $actor)) {
// false is returned if we did not have an error, but did not create the object
// (i.e. the author is currently being deleted)
return true;
}
// We return false (to stop the event) if the deleted_notice entry was
// added, which means we have run $this->saveObjectFromActivity which
// in turn has called the delete function of the notice.
return false;
}
/**
* This is run when a 'delete' verb activity comes in.
*
* @return boolean hook flag
*/
protected function saveObjectFromActivity(Activity $act, Notice $stored, array $options=array())
{
// Let's see if this has been deleted already.
$deleted = Deleted_notice::getKV('uri', $act->id);
if ($deleted instanceof Deleted_notice) {
return $deleted;
}
$target = Notice::getByUri($act->objects[0]->id);
common_debug('DELETING notice: ' . $act->objects[0]->id . ' on behalf of profile id==' . $target->getProfile()->getID());
$deleted = new Deleted_notice();
$deleted->id = $target->getID();
$deleted->profile_id = $target->getProfile()->getID();
$deleted->uri = $act->id;
$deleted->act_uri = $target->getUri();
$deleted->act_created = $target->created;
$deleted->created = common_sql_now();
$result = $deleted->insert();
if ($result === false) {
throw new ServerException('Could not insert Deleted_notice entry into database!');
}
common_debug('DELETING notice, actually deleting now!');
$target->delete();
return $deleted;
}
// FIXME: Put this in lib/activityhandlerplugin.php when we're ready
// with the other microapps/activityhandlers as well.
// Also it should be StartNoticeAsActivity (with a prepped Activity, including ->context etc.)
public function onEndNoticeAsActivity(Notice $stored, Activity $act, Profile $scoped=null)
{
if (!$this->isMyNotice($stored)) {
return true;
}
common_debug('Extending activity '.$stored->id.' with '.get_called_class());
$this->extendActivity($stored, $act, $scoped);
return false;
}
public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
{
Deleted_notice::extendActivity($stored, $act, $scoped);
}
public function activityObjectFromNotice(Notice $notice)
{
$object = Deleted_notice::fromStored($notice);
return $object->asActivityObject();
}
protected function getActivityForm(ManagedAction $action, $verb, Notice $target, Profile $scoped)
{
if (!$scoped instanceof Profile || !($scoped->sameAs($target->getProfile()) || $scoped->hasRight(Right::DELETEOTHERSNOTICE))) {
throw new AuthorizationException(_('You are not allowed to delete other user\'s notices'));
}
return DeletenoticeForm($action, array('notice'=>$target));
}
}