me_plugin_argument_validate_me_alias.inc in me aliases 8

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.

File

includes/views/handlers/me_plugin_argument_validate_me_alias.inc

<?php

/**
 * @file
 *
 * 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.
 */

/**
 * Validate whether an argument is an acceptable me alias, and user name/uid.
 */
class me_plugin_argument_validate_me_alias extends views_plugin_argument_validate_user {
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $form['roles']['#dependency'] = array(
      'edit-options-validate-options-me-restrict-roles' => array(
        1,
      ),
    );
    $form['me_redirect'] = array(
      '#type' => 'checkbox',
      '#title' => t("Redirect to the users uid when '%me' is entered as an argument.", array(
        '%me' => _me_get_me_alias(TRUE),
      )),
      '#description' => t("If selected, when a user enters '%me' for this argument, they will be redirected to the view with their user id inplace of '%me'.", array(
        '%me' => _me_get_me_alias(TRUE),
      )),
      '#default_value' => !empty($this->argument->options['me_redirect']),
    );
  }

  /**
   * Provides a form of options for our validator.
   */
  function options_validate(&$form, &$form_state) {

    // We are unable to rely on options having already been set, so let's make
    // sure defaults are here:
    parent::options_validate($form, $form_state);
    if (!isset($this->argument->options['me_redirect'])) {
      $this->argument->options['me_redirect'] = FALSE;
      $this->argument->options['me_validate_user_argument_type'] = 'uid';
      $this->argument->options['me_validate_user_roles'] = array();
    }
  }

  /**
   * Performs the actual validation.
   */
  function validate_argument($argument) {

    // Only modify the argument when the wildcard does not equal the 'me' alias.
    if (!isset($this->argument->options['wildcard']) || !_me_is_alias($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->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->options['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) {
            $this->view->build_info['denied'] = TRUE;
            return FALSE;
          }
        }
        else {
          if ($uid_args[$key] != $GLOBALS['user']->name) {
            $this->view->build_info['denied'] = TRUE;
            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->options['type'];
    $this->argument->options['validate_user_restrict_roles'] = $this->options['restrict_roles'];
    $this->argument->options['validate_user_roles'] = $this->options['roles'];
    return parent::validate_argument($argument);
  }

}

Classes

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