5 * @maintainer Mikael Nordfeldth <mmn@hethane.se>
7 class ActivityModerationPlugin extends ActivityVerbHandlerPlugin
14 public function types()
19 public function verbs()
21 return array(ActivityVerb::DELETE);
24 public function onBeforePluginCheckSchema()
26 Deleted_notice::beforeSchemaUpdate();
30 public function onCheckSchema()
32 $schema = Schema::get();
33 $schema->ensureTable('deleted_notice', Deleted_notice::schemaDef());
37 protected function getActionTitle(ManagedAction $action, $verb, Notice $target, Profile $scoped)
39 // FIXME: switch based on action type
40 return _m('TITLE', 'Notice moderation');
43 protected function doActionPreparation(ManagedAction $action, $verb, Notice $target, Profile $scoped)
48 protected function doActionPost(ManagedAction $action, $verb, Notice $target, Profile $scoped)
51 case ActivityUtils::compareVerbs($verb, array(ActivityVerb::DELETE)):
52 // do whatever preparation is necessary to delete a verb
56 throw new ServerException('ActivityVerb POST not handled by plugin that was supposed to do it.');
60 public function deleteRelated(Notice $notice)
65 public function onDeleteNoticeAsProfile(Notice $stored, Profile $actor, &$result) {
66 // By adding a new 'delete' verb we will eventually trigger $this->saveObjectFromActivity
67 if (false === Deleted_notice::addNew($stored, $actor)) {
68 // false is returned if we did not have an error, but did not create the object
69 // (i.e. the author is currently being deleted)
73 // We return false (to stop the event) if the deleted_notice entry was
74 // added, which means we have run $this->saveObjectFromActivity which
75 // in turn has called the delete function of the notice.
80 * This is run when a 'delete' verb activity comes in.
82 * @return boolean hook flag
84 protected function saveObjectFromActivity(Activity $act, Notice $stored, array $options=array())
86 // Everything is done in the StartNoticeSave event
90 // FIXME: Put this in lib/activityhandlerplugin.php when we're ready
91 // with the other microapps/activityhandlers as well.
92 // Also it should be StartNoticeAsActivity (with a prepped Activity, including ->context etc.)
93 public function onEndNoticeAsActivity(Notice $stored, Activity $act, Profile $scoped=null)
95 if (!$this->isMyNotice($stored)) {
99 common_debug('Extending activity '.$stored->id.' with '.get_called_class());
100 $this->extendActivity($stored, $act, $scoped);
105 * This is run before ->insert, so our task in this function is just to
106 * delete if it is the delete verb.
108 public function onStartNoticeSave(Notice $stored)
110 // DELETE is a bit special, we have to remove the existing entry and then
111 // add a new one with the same URI in order to trigger the distribution.
112 // (that's why we don't use $this->isMyNotice(...))
113 if (!ActivityUtils::compareVerbs($stored->verb, array(ActivityVerb::DELETE))) {
118 $target = Notice::getByUri($stored->uri);
119 } catch (NoResultException $e) {
120 throw new AlreadyFulfilledException('Notice URI not found, so we have nothing to delete.');
123 $actor = $stored->getProfile();
124 $owner = $target->getProfile();
126 if ($owner->hasRole(Profile_role::DELETED)) {
127 // Don't bother with replacing notices if its author is being deleted.
128 // The later "StoreActivityObject" will pick this up and execute
129 // the deletion then.
130 // (the "delete verb notice" is too new to ever pass through Notice::saveNew
131 // which otherwise wouldn't execute the StoreActivityObject event)
135 // Since the user deleting may not be the same as the notice's owner,
136 // double-check this and also set the "re-stored" notice profile_id.
137 if (!$actor->sameAs($owner) && !$actor->hasRight(Right::DELETEOTHERSNOTICE)) {
138 throw new AuthorizationException(_('You are not allowed to delete another user\'s notice.'));
141 // We copy the identifying fields and replace the sensitive ones.
142 //$stored->id = $target->id; // We can't copy this since DB_DataObject won't inject it anyway
143 $props = array('uri', 'profile_id', 'conversation', 'reply_to', 'created', 'repeat_of', 'object_type', 'is_local', 'scope');
144 foreach($props as $prop) {
145 $stored->$prop = $target->$prop;
147 //$stored->content = $stored->content ?: _('Notice deleted.');
148 //$stored->rendered = $stored->rendered ?: $stored->rendered;
149 common_debug('DELETENOTICE: Replacement notice has been prepared: '.var_export($stored, true));
151 // Let's see if this has been deleted already.
152 $deleted = Deleted_notice::getKV('uri', $stored->getUri());
153 if ($deleted instanceof Deleted_notice) {
157 $deleted = new Deleted_notice();
159 $deleted->id = $target->getID();
160 $deleted->profile_id = $actor->getID();
161 $deleted->uri = $stored->getUri();
162 $deleted->act_created = $stored->created;
163 $deleted->created = common_sql_now();
165 $result = $deleted->insert();
166 if ($result === false) {
167 throw new ServerException('Could not insert Deleted_notice entry into database!');
170 // Now we delete the original notice, leaving the id and uri free.
176 public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
178 Deleted_notice::extendActivity($stored, $act, $scoped);
181 public function activityObjectFromNotice(Notice $notice)
183 $object = Deleted_notice::fromStored($notice);
184 return $object->asActivityObject();
187 protected function getActivityForm(ManagedAction $action, $verb, Notice $target, Profile $scoped)
189 if (!$scoped instanceof Profile || !($scoped->sameAs($target->getProfile()) || $scoped->hasRight(Right::DELETEOTHERSNOTICE))) {
190 throw new AuthorizationException(_('You are not allowed to delete other user\'s notices'));
192 return DeletenoticeForm($action, array('notice'=>$target));