openlucius-2.0.0-alpha3/modules/core/ol_main/ol_main.module

<?php

/**
 * @file
 * Contains main.module.
 */

use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;


/**
 * Implements hook_theme().
 */
function ol_main_theme() {
  return [
    'sidebar_header_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-header-block',
    ],
    'sidebar_user_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-user-block',
    ],
    'sidebar_global_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-global-block',
    ],
    'sidebar_groups_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-groups-block',
    ],
    'sidebar_groups_block_wrapper' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-groups-block-wrapper',
    ],
    'main_header_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'main-header-block',
    ],
    'main_sections_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'main-sections-block',
    ],
    'sidebar_pm_block' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'sidebar-pm-block',
    ],
    'group_config_page' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'group-config-page',
    ],
    'comment_item' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'comment-item',
    ],
    'comment_item_small' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'comment-item-small',
    ],
    'file_item' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'file-item',
    ],
    'file_modal_remove' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'file-modal-remove',
    ],
    'groups_archived_page' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'groups-archived-page',
    ],
    'groups_card' => [
      'variables' => [
        'vars' => NULL,
      ],
      'template' => 'groups-card',
    ],
  ];
}


/**
 * Implements hook_mail().
 *
 */
function ol_main_mail($key, &$message, $params) {

  $site_name = \Drupal::config('system.site')->get('name');
  $site_mail = \Drupal::config('system.site')->get('mail');

  // Options, needed for mulitlangual mails.
/*  $options = array(
    'langcode' => $message['langcode'],
  ); */
  switch ($key) {
    case 'ol_main_mail':
      $message['headers']['Reply-To'] = \Drupal::config('system.site')->get('mail');
      //$message['from'] = '[' .$site_name .'] ' .$params['sender_name'] .' <' . $site_mail . '>';
      $message['subject'] = $params['subject'];
      $message['body'][] = $params['body'];
      $message['body'][] = $params['url'];
      break;
  }
}

/**
 * @param $uri
 *
 * @return array
 * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
 * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
 */
function ol_main_file_download($uri) {

  // Get vars.
  $user_id = \Drupal::currentUser()->id();
  // Security hardening for anonymous users.
  if ($user_id == 0 || empty($user_id)) {
    throw new AccessDeniedHttpException();
  }

  // Check for result: belongs current user to organization and group of uploaded file?
  $query = \Drupal::database()->select('ol_file', 'file');
  $query->addField('file', 'file_id');
  $query->join('ol_group_user', 'group_user', 'group_user.group_id = file.group_id');
  $query->join('file_managed', 'file_man', 'file_man.fid = file.file_id');
  $query->condition('group_user.member_uid', $user_id);
  $query->condition('file_man.uri', $uri);
  $access = $query->execute()->fetchField();

  // Check if this maybe is a user picture.
  // Provide access to user picture if current user is somewhere in a group with requested user picture.
  // This way we are also prepared for 'external' role.
  if(empty($access)){
    // Get all groups user picture owner is in.
    $query = \Drupal::database()->select('file_managed', 'file');
    $query->addField('ogu', 'group_id');
    $query->join('ol_group_user', 'ogu', 'ogu.member_uid = file.uid');
    $query->condition('file.uri', $uri);
    $group_ids = $query->execute()->fetchCol();
    // Get all groups current user is in.
    $group_ids_current_user = getUserGroups($user_id);
    // Grant access if they have a common group.
    $access = !empty(array_intersect($group_ids, $group_ids_current_user));
  }

  // Results, grant access to file.
  if (!empty($access)) {
    $files = \Drupal::entityTypeManager()
      ->getStorage('file')
      ->loadByProperties(['uri' => $uri]);
    $file = reset($files);

    return file_get_content_headers($file);
  }
  // No results, deny access to file.
  else {
    throw new AccessDeniedHttpException();
  }
}

/**
 * Todo: find out where file_usage is for.
 *
 * Somehow the records Drupal inserts in the file_usage table blocks private image fields
 * downloads from controlling it with hook_file_download.
 * We need this for control over user images downloads.
 *
 * So we delete these records for now :s
 *
 * implements hook_ENTITY_update()
 *
 */
function ol_main_user_update($account){
  // Get current user id.
  $user_id = \Drupal::currentUser()->id();
  // Delete the records, again :s
  \Drupal::database()->delete('file_usage')
    ->condition('id', $account->id())
    ->condition('type', 'user')
    ->execute();
  // Log it.
  \Drupal::logger('ol_main_user_update')->info(
    'Deleted from file_usage. $uid:'.$user_id .' | $account->id(): '.$account->id());
}

/**
 * @return mixed
 */
function getUserGroups($user_id){
  // Get user data.
  $query = \Drupal::database()->select('ol_group_user', 'gr');
  $query->addField('gr', 'group_id');
  $query->condition('gr.status', 1);
  $query->condition('gr.member_uid', $user_id);
  return $query->execute()->fetchCol();
}
/**
 * @param $x
 * @param $y
 * @return mixed
 */
function sortByWeight($x, $y) {
  return $x['weight'] - $y['weight'];
}
/**
 * @param $string
 * @param $max_characters
 * @param int $start
 * @return string
 */
function shortenString($string, $max_characters = 40, $start = 0){
  return strlen($string) > $max_characters ? substr($string, $start, $max_characters).'...' : $string;
}
/**
 * @param $datetime
 * @param bool $full
 * @return string
 * @throws Exception
 *
 * From: https://stackoverflow.com/questions/1416697/converting-timestamp-to-time-ago-in-php-e-g-1-day-ago-2-days-ago
 */
function time_elapsed_string($datetime, $full = false) {
  $now = new DateTime;
  $ago = new DateTime($datetime);
  $diff = $now->diff($ago);

  $diff->w = floor($diff->d / 7);
  $diff->d -= $diff->w * 7;

  $string = array(
    'y' => t('year'),
    'm' => t('month'),
    'w' => t('week'),
    'd' => t('day'),
    'h' => t('hour'),
    'i' => t('minute'),
    's' => t('second'),
  );
  foreach ($string as $k => &$v) {
    if ($diff->$k) {
      $v = $diff->$k . ' ' . t($v . ($diff->$k > 1 ? 's' : ''));
    } else {
      unset($string[$k]);
    }
  }
  if (!$full) $string = array_slice($string, 0, 1);
  return $string ? implode(', ', $string) . t(' ago') : t('just now');
}

/**
 * Helper function to detect and create links in plain texts,
 *   like posts, inline comments and chat-items.
 *
 * @param $body
 * @return string|string[]|null
 */
function detectAndCreateLink($body){
  $url = '~(?:(https?)://([^\s<]+)|(www\.[^\s<]+?\.[^\s<]+))(?<![\.,:])~i';
  return preg_replace($url, '<a href="$0" title="$0" class="inline-link">$0</a>', $body);
}