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   1  <?php
   2  
   3  final class PhabricatorSSHLog extends Phobject {
   4  
   5    static $log;
   6  
   7    public static function getLog() {
   8      if (!self::$log) {
   9        $path = PhabricatorEnv::getEnvConfig('log.ssh.path');
  10        $format = PhabricatorEnv::getEnvConfig('log.ssh.format');
  11        $format = nonempty(
  12          $format,
  13          "[%D]\t%p\t%h\t%r\t%s\t%S\t%u\t%C\t%U\t%c\t%T\t%i\t%o");
  14  
  15        // NOTE: Path may be null. We still create the log, it just won't write
  16        // anywhere.
  17  
  18        $data = array(
  19          'D' => date('r'),
  20          'h' => php_uname('n'),
  21          'p' => getmypid(),
  22          'e' => time(),
  23        );
  24  
  25        $sudo_user = PhabricatorEnv::getEnvConfig('phd.user');
  26        if (strlen($sudo_user)) {
  27          $data['S'] = $sudo_user;
  28        }
  29  
  30        if (function_exists('posix_geteuid')) {
  31          $system_uid = posix_geteuid();
  32          $system_info = posix_getpwuid($system_uid);
  33          $data['s'] = idx($system_info, 'name');
  34        }
  35  
  36        $client = getenv('SSH_CLIENT');
  37        if (strlen($client)) {
  38          $remote_address = head(explode(' ', $client));
  39          $data['r'] = $remote_address;
  40        }
  41  
  42        $log = id(new PhutilDeferredLog($path, $format))
  43          ->setFailQuietly(true)
  44          ->setData($data);
  45  
  46        self::$log = $log;
  47      }
  48  
  49      return self::$log;
  50    }
  51  
  52  }