189
themes/hugo-mastodon-comments/static/comments/getcomments.php
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189
themes/hugo-mastodon-comments/static/comments/getcomments.php
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<?php
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/**
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* @copyright Copyright (c) 2018 Bjoern Schiessle <bjoern@schiessle.org>
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*
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* @license GNU AGPL version 3 or any later version
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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
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* published by the Free Software Foundation, either version 3 of the
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* License, or (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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*/
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require_once 'Mastodon_api.php';
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require_once '../../mastodon.feed/config.php';
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class CollectMastodonData {
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/** @var \Mastodon_api */
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private $api;
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/** @var string url of the mastodon instance */
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private $mastodonUrl = 'https://mastodon.social';
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/** @var string token to authenticate at the mastodon instance */
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private $bearerToken;
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/** @var int keep cache at least 600 seconds = 10 minutes */
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private $threshold = 600;
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/** @var string uid on the mastodon instance */
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private $uid;
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/** @var array cached comments from previous searches */
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private $commentCache = [];
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private $cacheFile = 'myCommentsCache.json';
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public function __construct($config) {
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$this->mastodonUrl = $config['mastodon-instance'];
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$this->bearerToken = $config['token'];
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$this->uid = $config['user-id'];
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$this->api = new Mastodon_api();
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$this->api->set_url($this->mastodonUrl);
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$this->api->set_token($this->bearerToken, 'bearer');
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}
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private function filterComments($descendants, $root, &$result) {
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foreach ($descendants as $d) {
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$result['comments'][$d['id']] = [
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'author' => [
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'display_name' => $d['account']['display_name'] ? $d['account']['display_name'] : $d['account']['username'],
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'avatar' => $d['account']['avatar_static'],
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'url' => $d['account']['url']
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],
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'toot' => $d['content'],
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'date' => $d['created_at'],
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'url' => $d['uri'],
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'reply_to' => $d['in_reply_to_id'],
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'root' => $root,
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];
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}
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return $result;
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}
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private function filterStats($stats) {
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$result = [
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'reblogs' => (int)$stats['reblogs_count'],
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'favs' => (int)$stats['favourites_count'],
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'replies' => (int)$stats['replies_count'],
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'url' => $stats['url']
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];
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return $result;
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}
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private function filterSearchResults($searchResult) {
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$result = [];
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if (isset($searchResult['html']['statuses'])) {
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foreach ($searchResult['html']['statuses'] as $status) {
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if ($status['in_reply_to_id'] === null) {
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$result[] = $status['id'];
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}
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}
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}
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sort($result);
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return $result;
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}
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/**
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* find all toots for a given blog post and return the corresponding IDs
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*
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* @param string $search
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* @return array
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*/
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public function findToots($search) {
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$result = $this->api->search(['q' => $search]);
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return $this->filterSearchResults($result);
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}
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public function getComments($id, &$result) {
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$raw = file_get_contents("https://mastodon.social/api/v1/statuses/$id/context");
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$json = json_decode($raw, true);
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$this->filterComments($json['descendants'], $id, $result);
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}
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public function getStatistics($id, &$result) {
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$raw = file_get_contents("https://mastodon.social/api/v1/statuses/$id");
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$json = json_decode($raw, true);
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$newStats = $this->filterStats($json);
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$result['stats']['reblogs'] += $newStats['reblogs'];
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$result['stats']['favs'] += $newStats['favs'];
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$result['stats']['replies'] += $newStats['replies'];
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if (empty($result['stats']['url'])) {
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$result['stats']['url'] = $newStats['url'];
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}
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}
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public function storeCollection($id, $comments) {
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$timestamp = time();
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$comments['timestamp'] = $timestamp;
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$this->commentCache[$id] = $comments;
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file_put_contents($this->cacheFile, json_encode($this->commentCache));
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}
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public function getCachedCollection($search) {
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if (file_exists($this->cacheFile)) {
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$cachedComments = file_get_contents($this->cacheFile);
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$cachedCommentsArray = json_decode($cachedComments, true);
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if (is_array($cachedCommentsArray)) {
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$this->commentCache = $cachedCommentsArray;
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$currentTimestamp = time();
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if (isset($cachedCommentsArray[$search])) {
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if ((int)$cachedCommentsArray[$search]['timestamp'] + $this->threshold > $currentTimestamp) {
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unset($cachedCommentsArray[$search]['timestamp']);
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return $cachedCommentsArray[$search];
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}
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}
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}
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}
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return [];
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}
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}
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$result = ['comments' => [], 'stats' => ['reblogs' => 0, 'favs' => 0, 'replies' => 0, 'url' => '', 'root' => 0]];
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$search = isset($_GET['search']) ? $_GET['search'] : '';
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$collector = new CollectMastodonData($config);
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$ids = [];
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if (!empty($search)) {
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$oldCollection = $collector->getCachedCollection($search);
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if (empty($oldCollection)) {
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$ids = $collector->findToots($search);
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$result['stats']['root'] = isset($ids[0]) ? $ids[0] : 0;
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foreach ($ids as $id) {
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// get comments
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$newComments = $collector->getComments($id, $result);
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// get statistics (likes, replies, boosts,...)
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$collector->getStatistics($id, $result);
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// FIXME: At the moment the API doesn't return the correct replies count so I count it manually
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$result['stats']['replies'] = count($result['comments']);
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}
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$collector->storeCollection($search, $result);
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} else {
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$result = $oldCollection;
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}
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}
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// headers for not caching the results
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||||
header('Cache-Control: no-cache, must-revalidate');
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header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
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||||
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||||
// headers to tell that result is JSON
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||||
header('Content-type: application/json');
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||||
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||||
// send the result now
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||||
echo json_encode($result);
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Reference in New Issue
Block a user