function antispam_nodeapi in AntiSpam 6

Implementation of hook_nodeapi().

File

./antispam.module, line 745

Code

function antispam_nodeapi(&$node, $op, $teaser, $page) {
  switch ($op) {
    case 'insert':
    case 'update':

      // If anti-spam servie connections are not enabled, we have nothing else to do here.
      if (!variable_get('antispam_connection_enabled', 1)) {
        antispam_notify_moderators('node', $node, $node->status ? TRUE : FALSE, FALSE);
        break;
      }

      // Also quit asap, if current user has administration permission
      // or permission to post without spam checking.
      if (antispam_is_spam_moderator($node->type) || user_access('post with no antispam checking')) {
        antispam_notify_moderators('node', $node, $node->status ? TRUE : FALSE, FALSE);
        break;
      }

      // Now, check if it's about a node type that we have not been explicitly requested to check.
      $check_nodetypes = variable_get('antispam_check_nodetypes', array());
      if (!is_array($check_nodetypes) || !isset($check_nodetypes[$node->type]) || !$check_nodetypes[$node->type]) {
        antispam_notify_moderators('node', $node, $node->status ? TRUE : FALSE, FALSE);
        break;
      }

      // Ok, let's send a query to anti-spam service.
      $api_result = antispam_api_cmd_comment_check('node', $node);
      if ($api_result[0] == ANTISPAM_API_RESULT_IS_HAM) {
        antispam_notify_moderators('node', $node, $node->status ? TRUE : FALSE, FALSE);
        antispam_increase_counter(ANTISPAM_COUNT_HAM_DETECTED);
      }
      else {
        if ($api_result[0] == ANTISPAM_API_RESULT_IS_SPAM) {
          $node->signature = $api_result[1];
          $node->spaminess = $api_result[2];

          // Oops! We got spammed, let's mark the comment as such.
          antispam_content_spam_operation('node', $node, 'submit-spam', FALSE);
          antispam_increase_counter(ANTISPAM_COUNT_SPAM_DETECTED);
          antispam_notify_moderators('node', $node, FALSE, TRUE);
        }
        else {
          antispam_notify_moderators('node', $node, FALSE, FALSE);
        }

        // Unpublish the node, if necessary.
        if ($node->status) {
          antispam_content_publish_operation('node', $node, 'unpublish', FALSE);
        }

        // Since users won't see their content published, show them a polite explanation on why.
        $content_type_name = node_get_types('name', $node);
        drupal_set_message(t('Your %content-type-name has been queued for moderation by site administrators and will be published after approval.', array(
          '%content-type-name' => $content_type_name,
        )));

        // Record the event to watchdog.
        if ($api_result[0] == ANTISPAM_API_RESULT_ERROR) {
          watchdog('content', 'AntiSpam service seems to be down, %content-type-name queued for manual approval: %title', array(
            '%content-type-name' => $content_type_name,
            '%title' => $node->title,
          ), WATCHDOG_WARNING, l(t('view'), 'node/' . $node->nid));
        }
        else {
          watchdog('content', 'Spam detected by AntiSpam in %content-type-name: %title', array(
            '%content-type-name' => $content_type_name,
            '%title' => $node->title,
          ), WATCHDOG_WARNING, l(t('view'), 'node/' . $node->nid));

          // If requested to, generate a delay so the spammer has to wait for a while.
          if (($seconds = variable_get('antispam_antispambot_delay', 60)) > 0) {
            sleep($seconds);
          }
        }
      }
      break;
    case 'delete':
      db_query('DELETE FROM {antispam_spam_marks} WHERE content_type = \'node\' AND content_id = %d', $node->nid);
      break;
    case 'load':
      $rec = db_fetch_object(db_query('SELECT signature, spaminess FROM {antispam_spam_marks} WHERE content_type = \'node\' AND content_id = %d', $node->nid));
      if ($rec) {
        return $rec;
      }
      else {
        return array(
          'signature' => '',
          'spaminess' => 1,
        );
      }
      break;
  }
}