function me_plugin_argument_validate_me_alias::validate_argument in me aliases 6.2

Same name and namespace in other branches

1. 8 includes/views/handlers/me_plugin_argument_validate_me_alias.inc \me_plugin_argument_validate_me_alias::validate_argument()
2. 7 includes/views/handlers/me_plugin_argument_validate_me_alias.inc \me_plugin_argument_validate_me_alias::validate_argument()

Performs the actual validation.

File

includes/me_plugin_argument_validate_me_alias.inc, line 56

Argument validator to help validate the me alias. If the argument is 'me', other validators will most likely be useless at this point, so we provde the same functionality as the user validator.

Class

me_plugin_argument_validate_me_alias

Validate whether an argument is an acceptable me alias, and user name/uid.

Code

function validate_argument($argument) {

  // Only modify the argument when the wildcard does not equal the 'me' alias.
  if (!_me_is_alias($this->argument->options['wildcard'])) {
    $uid_args = array();
    $seperator = ' ';
    if (empty($this->argument->options['break_phrase'])) {
      $uid_args[] = $argument;
    }
    else {

      // Modified from views_break_phrase() to include characters that a 'me' alias
      // may include.
      if (preg_match('/^([0-9a-zA-Z]+[+ ])+[0-9a-zA-Z]+$/', $argument)) {

        // The '+' character in a query string may be parsed as ' '.
        $uid_args = preg_split('/[+ ]/', $argument);
      }
      else {
        if (preg_match('/^([0-9a-zA-Z]+,)*[0-9a-zA-Z]+$/', $argument)) {
          $seperator = ',';
          $uid_args = explode(',', $argument);
        }
      }
    }

    // Check if we need to do a redirect, and make sure the option is disabled if we don't.
    // But be sure not to redirect in a live preview.
    if (empty($this->view->live_preview) && !empty($this->argument->options['me_redirect'])) {
      $redirect_args = array_filter($uid_args, create_function('$n', 'return _me_is_alias($n);'));
      if (!empty($redirect_args)) {

        // Trigger a redirect.
        me_views_pre_execute(NULL, TRUE);
      }
    }

    // The alias could potentially show up more than once. Loop over each argument
    // and check to be sure.
    foreach ($uid_args as $key => $uid_arg) {
      $uid_args[$key] = _me_check_arg($uid_arg, $this->argument->options['me_validate_user_argument_type'] == 'name', FALSE);

      //Make sure we only allow access to the current user
      if (is_numeric($uid_args[$key])) {
        if ($uid_args[$key] != $GLOBALS['user']->uid) {
          return FALSE;
        }
      }
      else {
        if ($uid_args[$key] != $GLOBALS['user']->name) {
          return FALSE;
        }
      }
    }
    $argument = implode($seperator, $uid_args);
  }

  // We always need to return the parent::set_argument() call.
  $this->argument->options['validate_user_argument_type'] = $this->argument->options['me_validate_user_argument_type'];
  $this->argument->options['validate_user_restrict_roles'] = $this->argument->options['me_validate_user_restrict_roles'];
  $this->argument->options['validate_user_roles'] = $this->argument->options['me_validate_user_roles'];
  return parent::validate_argument($argument);
}