crm.fsf.org/20131203/files/sites/all/modules-old/librejs/librejs.module

   1 <?php
   2
   3 /**
   4  * Implements hook_js_alter().
   5  */
   6 function librejs_js_alter(&$javascript) {
   7   static $inline, $librejs;
   8   // Add inline JavaScript license statement.
   9   if (!$inline) {
  10     $inline = array(
  11       'type' => 'inline',
  12       'group' => JS_LIBRARY,
  13       'every_page' => TRUE,
  14       'weight' => -100,
  15       'scope' => 'header',
  16       'cache' => TRUE,
  17       'defer' => FALSE,
  18       'preprocess' => TRUE,
  19       'version' => NULL,
  20       'data' => theme('librejs_inline_license'),
  21     );
  22   }
  23   $javascript[] = $inline;
  24   if (!$librejs) {
  25     $librejs = db_query('SELECT data, license, version FROM {librejs}')->fetchAllAssoc('data');
  26   }
  27   foreach ($javascript as $key => $js) {
  28     if ($js['type'] == 'file' || $js['type'] == 'external') {
  29       // Aggregated JavaScript will be tagged as GPLv3, so do not aggregate
  30       // non-GPLv3-compatible JavaScript.
  31       if (empty($librejs[$js['data']]->license)) {
  32         $javascript[$key]['preprocess'] = FALSE;
  33       }
  34       // Merge JavaScript into database if not present or version has changed.
  35       if (!isset($librejs[$js['data']]) || (isset($js['version']) && $librejs[$js['data']]->version != $js['version'])) {
  36         $key = array('data' => $js['data']);
  37         $fields = $key;
  38         $fields['type'] = $js['type'];
  39         if (isset($js['version'])) {
  40           $fields['version'] = $js['version'];
  41         }
  42         db_merge('librejs')->key($key)->fields($fields)->execute();
  43       }
  44     }
  45   }
  46 }
  47
  48 /**
  49  * Returns a list of LibreJS-compatible licenses.
  50  */
  51 function librejs_licenses() {
  52   return array(
  53     'http://www.gnu.org/licenses/gpl-2.0.html' => 'GNU-GPL-2.0-or-later',
  54     'http://www.gnu.org/licenses/gpl-3.0.html' => 'GNU-GPL-3.0-or-later',
  55     'http://www.gnu.org/licenses/lgpl-2.1.html' => 'GNU-LGPL-2.1-or-later',
  56     'http://www.gnu.org/licenses/lgpl-3.0.html' => 'GNU-LGPL-3.0-or-later',
  57     'http://www.gnu.org/licenses/agpl-3.0.html' => 'GNU-AGPL-3.0-or-later',
  58     'http://www.apache.org/licenses/LICENSE-2.0' => 'Apache-2.0-only',
  59     'http://directory.fsf.org/wiki/License:BSD_3Clause' => 'Modified-BSD',
  60     'http://creativecommons.org/publicdomain/zero/1.0/legalcode' => 'CC0-1.0-only',
  61     'http://www.jclark.com/xml/copying.txt' => 'Expat',
  62     'http://www.mozilla.org/MPL/2.0' => 'MPL-2.0-or-later',
  63     '' => t('Other'),
  64   );
  65 }
  66
  67 /**
  68  * Implements hook_menu().
  69  */
  70 function librejs_menu() {
  71   $items['librejs/jslicense'] = array(
  72     'access arguments' => array('access jslicense'),
  73     'page callback' => 'librejs_jslicense',
  74     'title' => 'JavaScript license information',
  75     'description' => 'License and source code of JavaScript used by the site.',
  76     'file' => 'librejs.pages.inc',
  77     'options' => array('attributes' => array('rel' => 'jslicense')),
  78   );
  79   $items['admin/config/development/librejs'] = array(
  80     'access arguments' => array('administer site configuration'),
  81     'page callback' => 'drupal_get_form',
  82     'page arguments' => array('librejs_admin_settings'),
  83     'title' => 'LibreJS',
  84     'description' => 'Configure the license and source of JavaScript used by the site.',
  85     'file' => 'librejs.admin.inc',
  86   );
  87   return $items;
  88 }
  89
  90 /**
  91  * Implements hook_page_build().
  92  */
  93 function librejs_page_build(&$page) {
  94   if (user_access('access jslicense')) {
  95     $page['page_bottom']['librejs'] = array(
  96       '#type' => 'markup',
  97       '#markup' => l(t('JavaScript license information'), 'librejs/jslicense', array('attributes' => array('rel' => 'jslicense', 'style' => 'display: none'))),
  98     );
  99   }
 100 }
 101
 102 /**
 103  * Implements hook_permission().
 104  */
 105 function librejs_permission() {
 106   return array(
 107     'access jslicense' => array(
 108       'title' => t('Access JavaScript license information'),
 109       'description' => t('Roles granted this permission can identify and read all JavaScript files used by the site.'),
 110     ),
 111   );
 112 }
 113
 114 /**
 115  * Implements hook_theme().
 116  */
 117 function librejs_theme($existing, $type, $theme, $path) {
 118   return array(
 119     'librejs_inline_license' => array(
 120       'template' => 'librejs-inline-license',
 121       'variables' => array('year' => NULL, 'author' => NULL),
 122     ),
 123   );
 124 }
 125
 126 /**
 127  * Preprocess variables for librejs-inline-license.tpl.php
 128  */
 129 function template_preprocess_librejs_inline_license(&$variables) {
 130   $variables['year'] = date('Y');
 131   $variables['author'] = check_plain(variable_get('site_name', 'Drupal'));
 132 }