forked from GNUsocial/gnu-social
311 lines
8.9 KiB
PHP
311 lines
8.9 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Superclass for microapp plugin
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Microapp
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Superclass for microapp plugins
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*
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* This class lets you define micro-applications with different kinds of activities.
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*
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* The applications work more-or-less like other
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*
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* @category Microapp
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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abstract class MicroAppPlugin extends Plugin
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{
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abstract function appTitle();
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abstract function tag();
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abstract function types();
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abstract function saveNoticeFromActivity($activity, $actor, $options);
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abstract function activityObjectFromNotice($notice);
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abstract function showNotice($notice, $out);
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abstract function entryForm($out);
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abstract function deleteRelated($notice);
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function isMyNotice($notice) {
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$types = $this->types();
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return in_array($notice->object_type, $types);
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}
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function isMyActivity($activity) {
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$types = $this->types();
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return (count($activity->objects) == 1 &&
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in_array($activity->objects[0]->type, $types));
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}
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/**
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* When a notice is deleted, delete the related objects
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*
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* @param Notice $notice Notice being deleted
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*
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* @return boolean hook value
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*/
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function onNoticeDeleteRelated($notice)
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{
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if ($this->isMyNotice($notice)) {
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$this->deleteRelated($notice);
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}
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return true;
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}
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/**
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* Output the HTML for this kind of object in a list
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*
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* @param NoticeListItem $nli The list item being shown.
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*
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* @return boolean hook value
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*/
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function onStartShowNoticeItem($nli)
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{
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if (!$this->isMyNotice($nli->notice)) {
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return true;
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}
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$out = $nli->out;
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$this->showNotice($notice, $out);
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$nli->showNoticeLink();
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$nli->showNoticeSource();
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$nli->showNoticeLocation();
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$nli->showContext();
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$nli->showRepeat();
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$out->elementEnd('div');
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$nli->showNoticeOptions();
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return false;
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}
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/**
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* Render a notice as one of our objects
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*
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* @param Notice $notice Notice to render
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* @param ActivityObject &$object Empty object to fill
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*
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* @return boolean hook value
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*/
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function onStartActivityObjectFromNotice($notice, &$object)
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{
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if ($this->isMyNotice($notice)) {
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$object = $this->activityObjectFromNotice($notice);
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return false;
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}
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return true;
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}
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/**
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* Handle a posted object from PuSH
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*
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* @param Activity $activity activity to handle
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* @param Ostatus_profile $oprofile Profile for the feed
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*
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* @return boolean hook value
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*/
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function onStartHandleFeedEntryWithProfile($activity, $oprofile)
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{
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if ($this->isMyActivity($activity)) {
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$actor = $oprofile->checkAuthorship($activity);
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if (empty($actor)) {
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throw new ClientException(_('Can\'t get author for activity.'));
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}
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$object = $activity->objects[0];
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$options = array('uri' => $object->id,
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'url' => $object->link,
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'is_local' => Notice::REMOTE_OMB,
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'source' => 'ostatus');
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$this->saveNoticeFromActivity($activity, $actor);
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return false;
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}
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return true;
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}
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/**
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* Handle a posted object from Salmon
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*
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* @param Activity $activity activity to handle
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* @param mixed $target user or group targeted
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*
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* @return boolean hook value
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*/
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function onStartHandleSalmonTarget($activity, $target)
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{
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if ($this->isMyActivity($activity)) {
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$this->log(LOG_INFO, "Checking {$activity->id} as a valid Salmon slap.");
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if ($target instanceof User_group) {
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$uri = $target->getUri();
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if (!in_array($uri, $activity->context->attention)) {
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throw new ClientException(_("Bookmark not posted ".
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"to this group."));
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}
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} else if ($target instanceof User) {
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$uri = $target->uri;
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$original = null;
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if (!empty($activity->context->replyToID)) {
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$original = Notice::staticGet('uri',
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$activity->context->replyToID);
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}
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if (!in_array($uri, $activity->context->attention) &&
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(empty($original) ||
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$original->profile_id != $target->id)) {
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throw new ClientException(_("Object not posted ".
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"to this user."));
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}
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} else {
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throw new ServerException(_("Don't know how to handle ".
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"this kind of target."));
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}
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$actor = Ostatus_profile::ensureActivityObjectProfile($activity->actor);
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$object = $activity->objects[0];
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$options = array('uri' => $object->id,
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'url' => $object->link,
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'is_local' => Notice::REMOTE_OMB,
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'source' => 'ostatus');
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$this->saveNoticeFromActivity($activity, $actor, $options);
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return false;
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}
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return true;
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}
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/**
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* Handle object posted via AtomPub
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*
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* @param Activity &$activity Activity that was posted
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* @param User $user User that posted it
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* @param Notice &$notice Resulting notice
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*
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* @return boolean hook value
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*/
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function onStartAtomPubNewActivity(&$activity, $user, &$notice)
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{
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if ($this->isMyActivity($activity)) {
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$options = array('source' => 'atompub');
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$this->saveNoticeFromActivity($activity,
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$user->getProfile(),
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$options);
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return false;
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}
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return true;
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}
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/**
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* Handle object imported from a backup file
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*
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* @param User $user User to import for
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* @param ActivityObject $author Original author per import file
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* @param Activity $activity Activity to import
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* @param boolean $trusted Is this a trusted user?
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* @param boolean &$done Is this done (success or unrecoverable error)
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*
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* @return boolean hook value
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*/
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function onStartImportActivity($user, $author, $activity, $trusted, &$done)
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{
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if ($this->isMyActivity($activity)) {
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$obj = $activity->objects[0];
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$options = array('uri' => $object->id,
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'url' => $object->link,
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'source' => 'restore');
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$saved = $this->saveNoticeFromActivity($activity,
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$user->getProfile(),
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$options);
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if (!empty($saved)) {
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$done = true;
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}
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return false;
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}
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return true;
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}
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function onStartShowEntryForms(&$tabs)
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{
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$tabs[$this->tag()] = $this->appTitle();
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return true;
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}
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function onStartMakeEntryForm($tag, $out, &$form)
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{
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$this->log(LOG_INFO, "onStartMakeEntryForm() called for tag '$tag'");
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if ($tag == $this->tag()) {
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$form = $this->entryForm($out);
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return false;
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}
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return true;
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}
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}
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