mastodonhandler.class.php

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<?php
/* Copyright (C) 2024 Laurent Destailleur <eldy@users.sourceforge.net>
 * Copyright (C) 2024 MDW                 <mdeweerd@users.noreply.github.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
 
require_once DOL_DOCUMENT_ROOT.'/core/class/socialnetworkmanager.class.php';
 
 
class MastodonHandler
{
  private $posts;
 
  public $error = '';
 
  private $accessToken;
 
  private $clientId;
 
  private $clientSecret;
 
  private $redirectUri;
 
 
  public function __construct($authParams)
  {
 
    $this->clientId = $authParams['client_id'] ?? '';
    $this->clientSecret = $authParams['client_secret'] ?? '';
    $this->redirectUri = $authParams['redirect_uri'] ?? '';
    $this->accessToken = $authParams['access_token'] ?? '';
  }
 
 
  public function fetch($urlAPI, $maxNb = 5, $cacheDelay = 60, $cacheDir = '', $authParams = [])
  {
    if (empty($this->accessToken) && isset($authParams['access_token'])) {
      return false;
    }
    $cacheFile = $cacheDir.'/'.dol_hash($urlAPI, 3);
    $foundInCache = false;
    $data = null;
 
    // Check cache
    if ($cacheDelay > 0 && $cacheDir && dol_is_file($cacheFile)) {
      $fileDate = dol_filemtime($cacheFile);
      if ($fileDate >= (dol_now() - $cacheDelay)) {
        $foundInCache = true;
        $data = file_get_contents($cacheFile);
      }
    }
 
    if (!$foundInCache) {
      $headers = [
        'Authorization: Bearer ' . $this->accessToken,
        'Content-Type: application/json'
      ];
 
      $result = getURLContent($urlAPI, 'GET', '', 1, $headers, array('http', 'https'), 0);
      if (!empty($result['content'])) {
        $data = $result['content'];
 
        if ($cacheDir) {
          dol_mkdir($cacheDir);
          file_put_contents($cacheFile, $data);
        }
      } else {
        $this->error = 'Error retrieving URL ' . $urlAPI;
        return false;
      }
    }
    if (!is_null($data)) {
      $data = json_decode($data, true);
      if (is_array($data)) {
        $this->posts = [];
        $count = 0;
 
        foreach ($data as $postData) {
          if ($count >= $maxNb) {
            break;
          }
          $this->posts[$count] = $this->normalizeData($postData);
          $count++;
        }
        return $this->posts;
      } else {
        $this->error = 'Invalid data format or empty response';
        return false;
      }
    } else {
      $this->error = 'Failed to retrieve or decode data';
      return false;
    }
  }
 
  public function normalizeData($postData)
  {
    if (!is_array($postData)) {
      return [];
    }
    return [
      'id' => $postData['id'] ?? '',
      'content' => strip_tags($postData['content'] ?? ''),
      'created_at' => $this->formatDate($postData['created_at'] ?? ''),
      'url' => $postData['url'] ?? '',
      'media_url' => $postData['media_attachments'][0]['url'] ?? ''
    ];
  }
 
  private function formatDate($dateString)
  {
    $timestamp = is_numeric($dateString) ? (int) $dateString : strtotime($dateString);
    return $timestamp > 0 ? dol_print_date($timestamp, "dayhour", 'tzuserrel') : 'Invalid Date';
  }
 
  public function getPosts()
  {
    return $this->posts;
  }
 
  public function getRedirectUri()
  {
    return $this->redirectUri;
  }
 
  public function getAccessToken()
  {
    return $this->accessToken;
  }
 
  public function getClientId()
  {
    return $this->clientId;
  }
 
  public function getClientSecret()
  {
    return $this->clientSecret;
  }
}