OSInet / qa

qa.module

<?php

/**
 * @file
 * OSInet Quality Assurance module for Drupal
 *
 * @copyright Copyright (C) 2005-2012 Frederic G. MARAND for Ouest Systèmes Informatiques (OSInet)
 *
 * @since DRUPAL-4-6
 *
 * @license Licensed under the disjunction of the CeCILL, version 2 and General Public License version 2 and later
 *
 * License note: QA is distributed by OSInet to its customers under the
 * CeCILL 2.0 license. OSInet support services only apply to the module
 * when distributed by OSInet, not by any third-party further down the
 * distribution chain.
 *
 * If you obtained QA from drupal.org, that site received it under the
 * GPLv2 license and can therefore distribute it under the GPLv2, and
 * so can you and just anyone down the chain as long as the GPLv2 terms
 * are abided by, the module distributor in that case being the
 * drupal.org organization or the downstream distributor, not OSInet.
 */
use OSInet\DrupalQA\Variable\Variable;

/**
 * Implements hook_init().
 *
 * - add module CSS.
 * - register custom autoloader.
 *
 * TODO probabaly remove the CSS from here.
 */
function qa_init() {
  drupal_add_css(drupal_get_path('module', 'qa') .'/qa.css');
}

/**
 * Implements hook_boot().
 *
 * Menu loaders may need objects before hook_init().
 */
function qa_boot() {
  spl_autoload_register('qa_autoload');
}

/**
 * Dedicated autoloader for QA.
 *
 * Only load symbols in the OSInet\DrupalQA namespace.
 *
 * @param string $name
 */
function qa_autoload($name) {
  // Adjust verbosity if needed.
  $verbose = FALSE;

  $verbose && watchdog('qa/autoload', 'Loading %name', array('%name' => $name), WATCHDOG_DEBUG);
  if (strpos($name, 'OSInet\DrupalQA\\') !== 0) {
    return;
  }

  $module_path = drupal_get_path('module', 'qa');
  $path_array = explode('\\', $name);
  $filename = array_pop($path_array);
  array_unshift($path_array, $module_path);
  $path = implode('/', $path_array);
  if (!is_dir($path) || !is_readable($path)) {
    $args = array('%path' => $path);
    drupal_set_message(t("Cannot read plugins directory %path.", $args), 'warning');
    watchdog('qa', "Cannot read plugins directory %path", $args, WATCHDOG_WARNING);
  }
  $path_array[] = "{$filename}.php";
  $path = implode('/', $path_array);
  $sts = include_once $path;
  $verbose && drupal_set_message(t('QA Autoloaded %path: @result', array(
    '%path' => $path,
    '@result' => $sts ? t('Success'): t('Failure'),
  )));
}

/**
 * Implements hook_menu().
 */
function qa_menu() {
  $items = array();
  $items['admin/reports/qa'] = array(
    'title'            => 'Quality Assurance',
    'description'      => 'Assisted auditing tools by OSInet',
    'page callback'    => 'drupal_get_form',
    'page arguments'   => array('qa_report_form'),
    'access arguments' => array('access site reports'),
  );
  $items['admin/reports/qa/projects'] = array(
    'title'           => 'Projects',
    'type'             => MENU_LOCAL_TASK,
    'page callback'    => 'qa_report_projects',
    'access arguments' => array('access site reports'),
    'file'             => 'qa_projects.inc',
  );
  $items['admin/reports/qa/variable'] = array(
    'title'           => 'Variables',
    'type'             => MENU_LOCAL_TASK,
    'page callback'    => 'qa_report_variables',
    'access arguments' => array('access site reports'),
    'file'             => 'qa_variables.inc',
  );
  $items['admin/reports/qa/variable/%qa_variable'] = array(
    'title'           => 'Variables',
    'type'             => MENU_CALLBACK,
    'page callback'    => 'qa_report_variable',
    'page arguments'   => array(4),
    'access arguments' => array('access site reports'),
    'file'             => 'qa_variables.inc',
  );

  $items['admin/reports/qa/results'] = array(
    'title'            => 'Quality Assurance results',
    'page callback'    => 'qa_report_results',
    'page arguments'   => array(),
    'access arguments' => array('access site reports'),
    'type'             => MENU_CALLBACK,
  );
  $items['admin/reports/qa/list'] = array(
    'title'            => 'QA Tests',
    'type'             => MENU_DEFAULT_LOCAL_TASK,
  );
  $items['admin/reports/qa/dependencies'] = array(
    'title'            => 'Dependencies',
    'type'             => MENU_LOCAL_TASK,
    'page callback'    => 'qa_page_dependencies',
    'access arguments' => array('access site reports'),
    'file'             => 'qa_dependencies.inc',
    'weight'           => 1,
  );
  return $items;
}

/**
 * Page callback for qa/dependencies
 *
 * TODO convert to native Image_GraphViz to remove dependency on graphviz_filter
 * XXX convert to Grafizzi to remove dependency on Image_GraphViz
 *
 * @return string
 */
function qa_page_dependencies() {
  $G = qa_dependencies();
  // passed by reference: cannot pass a function return
  return graphviz_filter_render($G);
}

/**
 * Batch conclusion callback.
 *
 * @param boolean $success
 * @param array $results
 * @param array $operations
 */
function qa_report_finished($success, $results, $operations) {
  unset($results['#message']);
  if ($success) {
    $message = format_plural(count($results), 'One control pass ran.', '@count control passes ran.');
  }
  else {
    $message = t('Finished with an error.');
  }
  drupal_set_message($message);
  $_SESSION['qa_results'] = $results;
  drupal_goto('admin/reports/qa/results');
}

/**
 * Results page for QA Controls batch.
 *
 * @link http://www.php.net/manual/fr/function.unserialize.php @endlink
 */
function qa_report_results() {
  if (empty($_SESSION['qa_results'])) {
    drupal_goto('admin/reports/qa');
  }
  // Work around incomplete classes
  $results = unserialize(serialize($_SESSION['qa_results']));

  $header = array(
    t('Control'),
    t('Status'),
    t('Results'),
  );
  $data = array();
  foreach ($results as $pass) {
    $control = $pass->control;
    $data[] = array(
      $control->title,
      $pass->status
        ? theme('image', array(
          'path' => 'misc/watchdog-ok.png',
          'alt' => t('OK'),
          ))
        : theme('image', array(
          'path' => 'misc/watchdog-error.png',
          'alt' => t('Error'),
          )),
      $pass->result,
    );
  }
  $ret = theme('table', array(
    'header' => $header,
    'rows' => $data,
    'attributes' => array(
      'id' => 'qa-results',
    )));
  // unset($_SESSION['qa_results']);
  return $ret;
}

/**
 * Form builder for QA packages/controls selection form.
 *
 * @return array
 */
function qa_report_form($form, $form_state) {
  $form = array();
  $base = drupal_get_path('module', 'qa');
  $packages = OSInet\DrupalQA\Exportable::getClasses($base, 'OSInet\DrupalQA\BasePackage');
  ksort($packages);
  foreach ($packages as $package_name => $package) {
    $collapsed = TRUE;
    $form[$package_name] = array(
      '#type' => 'fieldset',
      '#title' => filter_xss_admin($package->title),
      '#description' => filter_xss_admin($package->description),
      '#collapsible' => TRUE,
    );
    $controls = $package->getClasses($package->dir, 'OSInet\DrupalQA\BaseControl');

    foreach ($controls as $control_name => $control) {
      $default_value = isset($_SESSION[$control_name])
        ? $_SESSION[$control_name]
        : NULL;
      if ($default_value) {
        $collapsed = FALSE;
      }

      $deps = array();
      $met = TRUE;
      foreach ($control->getDependencies() as $dep_name) {
        if (module_exists($dep_name)) {
          $deps[] = t('@module (<span class="admin-enabled">available</span>)', array('@module' => $dep_name));
        }
        else {
          $deps[] = t('@module (<span class="admin-disabled">unavailable</span>)', array('@module' => $dep_name));
          $met = FALSE;
        }
      }
      $form[$package_name][$control_name] = array(
        '#type'          => 'checkbox',
        '#default_value' => $met ? $default_value : 0,
        '#title'         => filter_xss_admin($control->title),
        '#description'   => filter_xss_admin($control->description),
        '#disabled'      => !$met,
      );
      $form[$package_name][$control_name .'-dependencies'] = array(
        '#value' => t('Depends on: !dependencies', array(
          '!dependencies' => implode(', ', $deps),
          )),
        '#prefix' => '<div class="admin-dependencies">',
        '#suffix' => '</div>',
      );
    }
    $form[$package_name]['#collapsed'] = $collapsed;
  }

  $form['submit'] = array(
    '#type'  => 'submit',
    '#value' => t('Run controls'),
  );

  return $form;
}

/**
 * Submit handler for QA packages/controls selection form
 *
 * @param array $form
 * @param array $form_state
 */
function qa_report_form_submit($form, &$form_state) {
  $controls = array();
  foreach ($form_state['values'] as $item => $value) {
    if (class_exists($item) && is_subclass_of($item, '\OSInet\DrupalQA\BaseControl')) {

Due to PHP Bug #53727, is_subclass_of returns inconsistent results on some PHP versions for interfaces; you could instead use ReflectionClass::implementsInterface.

      if ($value) {
        $controls[$item] = $value;
      }
      $_SESSION[$item] = $value;
    }
    elseif ($value == 1) {
      $args = array(
        '%control' => $item,
      );
      drupal_set_message(t('Requested invalid control %control', $args), 'error');
      watchdog('qa', 'Requested invalid control %control', $args, WATCHDOG_ERROR);
    }
  }

  drupal_set_message(t('Prepare to run these controls: @controls', array(
    '@controls' => implode(', ', array_keys($controls)))), 'status');
  $batch = array(
    'operations'       => array(),
    'title'            => t('QA Controls running'),
    'init_message'     => t('QA Controls initializing'),
    // 'progress_message' => t('current: @current, Remaining: @remaining, Total: @total'),
    'error_message'    => t('Error in QA Control'),
    'finished'         => 'qa_report_finished',
    // 'file'             => '', // only if outside module file
  );

  foreach ($controls as $item => $value) {
    $batch['operations'][] = array('qa_report_run_pass', array($item));
  }
  batch_set($batch);
}

/**
 * Batch progress step.
 *
 * @return void
 */
function qa_report_run_pass($class_name, &$context) {
  $name_arg = array('@class' => $class_name);

  $control = new $class_name();
  if (!is_object($control)) {
    drupal_set_message(t('Cannot obtain an instance for @class', $name_arg), 'error');
    $context['results']['#message'] = t('Control @class failed to run.', $name_arg);
    $context['message'] = t('Control @class failed to run.', $name_arg);
    $context['results'][$class_name] = 'wow';
  }
  else {
    drupal_set_message(t('Running a control instance for @class', $name_arg), 'status');
    $pass = $control->run();
    if (!$pass->status) {
      $context['success'] = FALSE;
    }
    $context['results']['#message'][] = t('Control @class ran', $name_arg);
    $context['message'] = theme('item_list', $context['results']['#message']);
    $context['results'][$class_name] = $pass;
  }
}

function qa_variable_load($name) {
  $variable = new Variable($name);
  if (!$variable->is_set) {
    return FALSE;
  }

  return $variable;
}