113 lines
4.3 KiB
PHP
113 lines
4.3 KiB
PHP
<?php
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/**
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* GNU social - a federating social network
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*
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* ActivityPubPlugin implementation for GNU Social
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*
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* LICENCE: 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 Plugin
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @author Daniel Supernault <danielsupernault@gmail.com>
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* @copyright 2018 Free Software Foundation http://fsf.org
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link https://www.gnu.org/software/social/
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*/
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if (!defined ('GNUSOCIAL')) {
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exit (1);
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}
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/**
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* @category Plugin
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://www.gnu.org/software/social/
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*/
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class apActorFollowersAction extends ManagedAction
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{
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protected $needLogin = false;
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protected $canPost = true;
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/**
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* Handle the Followers Collection request
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*
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* @return void
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*/
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protected function handle () {
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$nickname = $this->trimmed ('nickname');
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try {
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$user = User::getByNickname ($nickname);
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$profile = $user->getProfile ();
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$url = $profile->profileurl;
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} catch (Exception $e) {
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ActivityPubReturn::error ('Invalid username.');
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}
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if (!isset ($_GET["page"])) {
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$page = 1;
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} else {
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$page = intval ($this->trimmed ('page'));
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}
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if ($page <= 0) {
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ActivityPubReturn::error ('Invalid page number.');
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}
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/* Fetch Followers */
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try {
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$since = ($page - 1) * PROFILES_PER_MINILIST;
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$limit = (($page - 1) == 0 ? 1 : $page) * PROFILES_PER_MINILIST;
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$sub = $profile->getSubscribers ($since, $limit);
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}
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catch(NoResultException $e) {
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ActivityPubReturn::error ('This user has no followers.');
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}
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/* Calculate total items */
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$total_subs = $profile->subscriberCount ();
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$total_pages = ceil ($total_subs / PROFILES_PER_MINILIST);
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if ($total_pages == 0) {
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ActivityPubReturn::error ('This user has no followers.');
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}
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if ($page > $total_pages) {
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ActivityPubReturn::error ("There are only {$total_pages} pages.");
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}
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/* Get followers' URLs */
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$subs = array ();
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while ($sub->fetch ()) {
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$subs[] = $sub->profileurl;
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}
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$res = [
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'@context' => [
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"https://www.w3.org/ns/activitystreams",
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"https://w3id.org/security/v1",
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],
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'id' => "{$url}/followers.json",
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'type' => ($page == 0 ? 'OrderedCollection' : 'OrderedCollectionPage'),
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'totalItems' => $total_subs,
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'next' => $page+1 > $total_pages ? null : "{$url}/followers.json?page=".($page+1 == 1 ? 2 : $page+1),
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'prev' => $page == 1 ? null : "{$url}/followers.json?page=".($page-1 <= 0 ? 1 : $page-1),
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'orderedItems' => $subs
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];
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ActivityPubReturn::answer ($res);
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}
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}
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