system.module 92.9 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4 5 6 7 8
/**
 * @file
 * Configuration system that lets administrators modify the workings of the site.
 */

Steven Wittens's avatar
Steven Wittens committed
9
define('VERSION', '6.0-dev');
10

11 12 13 14 15
define('DRUPAL_MINIMUM_PHP',    '4.3.3');
define('DRUPAL_MINIMUM_MYSQL',  '4.1.0'); // If using MySQL
define('DRUPAL_MINIMUM_PGSQL',  '7.4');   // If using PostgreSQL
define('DRUPAL_MINIMUM_APACHE', '1.3');   // If using Apache

Dries's avatar
 
Dries committed
16 17 18 19
/**
 * Implementation of hook_help().
 */
function system_help($section) {
20 21
  global $base_url;

22
  switch ($section) {
23
    case 'admin/help#system':
24
      $output = '<p>'. t('The system module provides system-wide defaults such as running jobs at a particular time, and storing web pages to improve efficiency. The ability to run scheduled jobs makes administering the website more usable, as administrators do not have to manually start jobs. The storing of web pages, or caching, allows the site to efficiently re-use web pages and improve website performance. The settings module provides control over preferences, behaviours including visual and operational settings.') .'</p>';
25
      $output .= '<p>'. t('Some modules require regularly scheduled actions, such as cleaning up logfiles. Cron, which stands for chronograph, is a periodic command scheduler executing commands at intervals specified in seconds. It can be used to control the execution of daily, weekly and monthly jobs (or anything with a period measured in seconds). The aggregator module periodically updates feeds using cron. Ping periodically notifies services of new content on your site. Search periodically indexes the content on your site. Automating tasks is one of the best ways to keep a system running smoothly, and if most of your administration does not require your direct involvement, cron is an ideal solution. Cron can, if necessary, also be run manually.') .'</p>';
26
      $output .= '<p>'. t("There is a caching mechanism which stores dynamically generated web pages in a database. By caching a web page, the system module does not have to create the page each time someone wants to view it, instead it takes only one SQL query to display it, reducing response time and the server's load. Only pages requested by <em>anonymous</em> users are cached. In order to reduce server load and save bandwidth, the system module stores and sends cached pages compressed.") .'</p>';
27
      $output .= '<p>'. t('For more information please read the configuration and customization handbook <a href="@system">System page</a>.', array('@system' => 'http://drupal.org/handbook/modules/system/')) .'</p>';
28
      return $output;
29
    case 'admin':
30
      return '<p>'. t('Welcome to the administration section. Here you may control how your site functions.') .'</p>';
31
    case 'admin/by-module':
32
      return '<p>'. t('This page shows you all available administration tasks for each module.') .'</p>';
33
    case 'admin/build/themes':
34
      return '<p>'. t('Select which themes are available to your users and specify the default theme. To configure site-wide display settings, click the "configure" task above. Alternately, to override these settings in a specific theme, click the "configure" link for the corresponding theme. Note that different themes may have different regions available for rendering content like blocks. If you want consistency in what your users see, you may wish to enable only one theme.') .'</p>';
35
    case 'admin/build/themes/settings':
36
      return '<p>'. t('These options control the default display settings for your entire site, across all themes. Unless they have been overridden by a specific theme, these settings will be used.') .'</p>';
37 38
    case 'admin/build/themes/settings/'. arg(4):
      $reference = explode('.', arg(4), 2);
39
      $theme = array_pop($reference);
40
      return '<p>'. t('These options control the display settings for the <code>%template</code> theme. When your site is displayed using this theme, these settings will be used. By clicking "Reset to defaults," you can choose to use the <a href="@global">global settings</a> for this theme.', array('%template' => $theme, '@global' => url('admin/build/themes/settings'))) .'</p>';
41
    case 'admin/build/modules':
42
      return t('<p>Modules are plugins for Drupal that extend its core functionality. Here you can select which modules are enabled. Click on the name of the module in the navigation menu for their individual configuration pages. Once a module is enabled, new <a href="@permissions">permissions</a> might be made available. Modules can automatically be temporarily disabled to reduce server load when your site becomes extremely busy by enabling the throttle.module and checking throttle. The auto-throttle functionality must be enabled on the <a href="@throttle">throttle configuration page</a> after having enabled the throttle module.</p>
43
<p>It is important that <a href="@update-php">update.php</a> is run every time a module is updated to a newer version.</p><p>You can find all administration tasks belonging to a particular module on the <a href="@by-module">administration by module page</a>.</p>', array('@permissions' => url('admin/user/access'), '@throttle' => url('admin/settings/throttle'), '@update-php' => $base_url .'/update.php', '@by-module' => url('admin/by-module')));
44
    case 'admin/build/modules/uninstall':
45
      return '<p>'. t('The uninstall process removes all data related to a module. To uninstall a module, you must first disable it. Not all modules support this feature.') .'</p>';
46
    case 'admin/logs/status':
47
      return '<p>'. t("Here you can find a short overview of your Drupal site's parameters as well as any problems detected with your installation. It is useful to copy/paste this information when you need support.") .'</p>';
48
  }
Dries's avatar
 
Dries committed
49 50
}

Dries's avatar
 
Dries committed
51 52 53
/**
 * Implementation of hook_perm().
 */
Dries's avatar
 
Dries committed
54
function system_perm() {
55
  return array('administer site configuration', 'access administration pages', 'select different theme');
Dries's avatar
 
Dries committed
56 57
}

58 59 60 61 62
/**
 * Implementation of hook_elements().
 */
function system_elements() {
  // Top level form
63
  $type['form'] = array('#method' => 'post', '#action' => request_uri());
64 65

  // Inputs
66
  $type['checkbox'] = array('#input' => TRUE, '#return_value' => 1);
67 68
  $type['submit'] = array('#input' => TRUE, '#name' => 'op', '#button_type' => 'submit', '#executes_submit_callback' => TRUE);
  $type['button'] = array('#input' => TRUE, '#name' => 'op', '#button_type' => 'submit', '#executes_submit_callback' => FALSE);
69
  $type['textfield'] = array('#input' => TRUE, '#size' => 60, '#maxlength' => 128, '#autocomplete_path' => FALSE);
70
  $type['password'] = array('#input' => TRUE, '#size' => 60, '#maxlength' => 128);
71
  $type['password_confirm'] = array('#input' => TRUE, '#process' => array('expand_password_confirm' => array()));
72
  $type['textarea'] = array('#input' => TRUE, '#cols' => 60, '#rows' => 5, '#resizable' => TRUE);
73
  $type['radios'] = array('#input' => TRUE, '#process' => array('expand_radios' => array()));
74
  $type['radio'] = array('#input' => TRUE, '#default_value' => NULL);
75
  $type['checkboxes'] = array('#input' => TRUE, '#process' => array('expand_checkboxes' => array()), '#tree' => TRUE);
76
  $type['select'] = array('#input' => TRUE, '#size' => 0, '#multiple' => FALSE);
77
  $type['weight'] = array('#input' => TRUE, '#delta' => 10, '#default_value' => 0, '#process' => array('process_weight' => array()));
78
  $type['date'] = array('#input' => TRUE, '#process' => array('expand_date' => array()), '#validate' => array('date_validate' => array()));
79
  $type['file'] = array('#input' => TRUE, '#size' => 60);
80 81

  // Form structure
82
  $type['item'] = array('#value' => '');
83 84 85
  $type['hidden'] = array('#input' => TRUE);
  $type['value'] = array('#input' => TRUE);
  $type['markup'] = array('#prefix' => '', '#suffix' => '');
86
  $type['fieldset'] = array('#collapsible' => FALSE, '#collapsed' => FALSE, '#value' => NULL);
Dries's avatar
Dries committed
87
  $type['token'] = array('#input' => TRUE);
88 89 90
  return $type;
}

Dries's avatar
 
Dries committed
91
/**
Dries's avatar
 
Dries committed
92
 * Implementation of hook_menu().
Dries's avatar
 
Dries committed
93
 */
94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
function system_menu() {
  $items['system/files'] = array(
    'title' => t('File download'),
    'page callback' => 'file_download',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  $items['admin'] = array(
    'title' => t('Administer'),
    'access arguments' => array('access administration pages'),
    'page callback' => 'system_main_admin_page',
    'weight' => 9,
  );
  $items['admin/compact'] = array(
    'title' => t('Compact mode'),
    'page callback' => 'system_admin_compact_page',
    'type' => MENU_CALLBACK,
  );
  $items['admin/by-task'] = array(
    'title' => t('By task'),
    'page callback' => 'system_main_admin_page',
    'type' => MENU_DEFAULT_LOCAL_TASK,
  );
  $items['admin/by-module'] = array(
    'title' => t('By module'),
    'page callback' => 'system_admin_by_module',
    'type' => MENU_LOCAL_TASK,
    'weight' => 2,
  );
  // menu items that are basically just menu blocks
  $items['admin/settings'] = array(
    'title' => t('Site configuration'),
    'description' => t('Adjust basic site configuration options.'),
    'position' => 'right',
    'weight' => -5,
    'page callback' => 'system_settings_overview',
    'access arguments' => array('administer site configuration'),
  );
  $items['admin/build'] = array(
    'title' => t('Site building'),
    'description' => t('Control how your site looks and feels.'),
    'position' => 'right',
    'weight' => -10,
    'page callback' => 'system_admin_menu_block_page',
    'access arguments' => array('administer site configuration'),
  );
  $items['admin/settings/admin'] = array(
    'title' => t('Administration theme'),
    'description' => t('Settings for how your administrative pages should look.'),
    'position' => 'left',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_admin_theme_settings'),
    'block callback' => 'system_admin_theme_settings',
  );
  // Themes:
  $items['admin/build/themes'] = array(
    'title' => t('Themes'),
    'description' => t('Change which theme your site uses or allows users to set.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_themes'),
  );
  $items['admin/build/themes/select'] = array(
    'title' => t('List'),
    'description' => t('Select the default theme.'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -1,
  );
  $items['admin/build/themes/settings'] = array(
    'title' => t('Configure'),
    'page arguments' => array('system_theme_settings'),
    'type' => MENU_LOCAL_TASK,
  );
  // Theme configuration subtabs
  $items['admin/build/themes/settings/global'] = array(
    'title' => t('Global settings'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -1,
  );
Dries's avatar
 
Dries committed
172

173 174 175 176 177 178 179
  foreach (list_themes() as $theme) {
    if ($theme->status) {
      $items['admin/build/themes/settings/'. $theme->name] = array(
        'title' => $theme->name,
        'page arguments' => array('system_theme_settings', $theme->name),
        'type' => MENU_LOCAL_TASK,
      );
Dries's avatar
 
Dries committed
180
    }
Dries's avatar
 
Dries committed
181
  }
drumm's avatar
drumm committed
182

183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206
  // Modules:
  $items['admin/build/modules'] = array(
    'title' => t('Modules'),
    'description' => t('Enable or disable add-on modules for your site.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_modules'),
  );
  $items['admin/build/modules/list'] = array(
    'title' => t('List'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
  );
  $items['admin/build/modules/list/confirm'] = array(
    'title' => t('List'),
    'type' => MENU_CALLBACK,
  );
  $items['admin/build/modules/uninstall'] = array(
    'title' => t('Uninstall'),
    'page arguments' => array('system_modules_uninstall'),
    'type' => MENU_LOCAL_TASK,
  );
  $items['admin/build/modules/uninstall/confirm'] = array(
    'title' => t('Uninstall'),
    'type' => MENU_CALLBACK,
  );
Dries's avatar
 
Dries committed
207

208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293
  // Settings:
  $items['admin/settings/site-information'] = array(
    'title' => t('Site information'),
    'description' => t('Change basic site information, such as the site name, slogan, e-mail address, mission, front page and more.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_site_information_settings'),
  );
  $items['admin/settings/error-reporting'] = array(
    'title' => t('Error reporting'),
    'description' => t('Control how Drupal deals with errors including 403/404 errors as well as PHP error reporting.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_error_reporting_settings'),
  );
  $items['admin/settings/performance'] = array(
    'title' => t('Performance'),
    'description' => t('Enable or disable page caching for anonymous users, and enable or disable CSS preprocessor.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_performance_settings'),
  );
  $items['admin/settings/file-system'] = array(
    'title' => t('File system'),
    'description' => t('Tell Drupal where to store uploaded files and how they are accessed.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_file_system_settings'),
  );
  $items['admin/settings/image-toolkit'] = array(
    'title' => t('Image toolkit'),
    'description' => t('Choose which image toolkit to use if you have installed optional toolkits.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_image_toolkit_settings'),
  );
  $items['admin/content/rss-publishing'] = array(
    'title' => t('RSS publishing'),
    'description' => t('Configure the number of items per feed and whether feeds should be titles/teasers/full-text.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_rss_feeds_settings'),
  );
  $items['admin/settings/date-time'] = array(
    'title' => t('Date and time'),
    'description' => t("Settings for how Drupal displays date and time, as well as the system's default timezone."),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_date_time_settings'),
  );
  $items['admin/settings/site-maintenance'] = array(
    'title' => t('Site maintenance'),
    'description' => t('Take the site off-line for maintenance or bring it back online.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_site_maintenance_settings'),
  );
  $items['admin/settings/clean-urls'] = array(
    'title' => t('Clean URLs'),
    'description' => t('Enable or disable clean URLs for your site.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('system_clean_url_settings'),
  );

  // Logs:
  $items['admin/logs'] = array(
    'title' => t('Logs'),
    'description' => t('View system logs and other status information.'),
    'page callback' => 'system_admin_menu_block_page',
    'weight' => 5,
    'position' => 'left',
  );
  $items['admin/logs/status'] = array(
    'title' => t('Status report'),
    'description' => t("Get a status report about your site's operation and any detected problems."),
    'page callback' => 'system_status',
    'weight' => 10,
    'access arguments' => array('administer site configuration'),
  );
  $items['admin/logs/status/run-cron'] = array(
    'title' => t('Run cron'),
    'page callback' => 'system_run_cron',
    'type' => MENU_CALLBACK,
  );
  $items['admin/logs/status/php'] = array(
    'title' => t('PHP'),
    'page callback' => 'system_php',
    'type' => MENU_CALLBACK,
  );
  $items['admin/logs/status/sql'] = array(
    'title' => t('SQL'),
    'page callback' => 'system_sql',
    'type' => MENU_CALLBACK,
  );
Dries's avatar
 
Dries committed
294
  return $items;
Dries's avatar
 
Dries committed
295 296
}

297 298 299 300 301 302 303 304 305 306 307 308 309
function system_init() {
  // Use the administrative theme if the user is looking at a page in the admin/* path.
  if (arg(0) == 'admin') {
    global $custom_theme;
    $custom_theme = variable_get('admin_theme', '0');
    drupal_add_css(drupal_get_path('module', 'system') .'/admin.css', 'module');
  }

  // Add the CSS for this module.
  drupal_add_css(drupal_get_path('module', 'system') .'/defaults.css', 'module');
  drupal_add_css(drupal_get_path('module', 'system') .'/system.css', 'module');
}

Dries's avatar
 
Dries committed
310 311 312 313 314
/**
 * Implementation of hook_user().
 *
 * Allows users to individually set their theme and time zone.
 */
315
function system_user($type, $edit, &$user, $category = NULL) {
Dries's avatar
Dries committed
316
  if ($type == 'form' && $category == 'account') {
317
    $form['theme_select'] = system_theme_select_form(t('Selecting a different theme will change the look and feel of the site.'), isset($edit['theme']) ? $edit['theme'] : NULL, 2);
Dries's avatar
Dries committed
318

319
    if (variable_get('configurable_timezones', 1)) {
Steven Wittens's avatar
Steven Wittens committed
320
      $zones = _system_zonelist();
321 322 323 324 325 326
      $form['timezone'] = array(
        '#type'=>'fieldset',
        '#title' => t('Locale settings'),
        '#weight' => 6,
        '#collapsible' => TRUE,
      );
327
      $form['timezone']['timezone'] = array(
328 329 330 331 332
        '#type' => 'select',
        '#title' => t('Time zone'),
        '#default_value' => strlen($edit['timezone']) ? $edit['timezone'] : variable_get('date_default_timezone', 0),
        '#options' => $zones,
        '#description' => t('Select your current local time. Dates and times throughout this site will be displayed using this time zone.'),
333
      );
Dries's avatar
 
Dries committed
334
    }
Dries's avatar
Dries committed
335

336
    return $form;
Dries's avatar
 
Dries committed
337
  }
Dries's avatar
 
Dries committed
338 339
}

340 341 342 343 344 345 346
/**
 * Provide the administration overview page.
 */
function system_main_admin_page($arg = NULL) {
  // If we received an argument, they probably meant some other page.
  // Let's 404 them since the menu system cannot be told we do not
  // accept arguments.
347
  if (isset($arg) && substr($arg, 0, 3) != 'by-') {
348 349 350
    return drupal_not_found();
  }

351 352 353 354 355
  // Check for status report errors.
  if (system_status(TRUE)) {
    drupal_set_message(t('One or more problems were detected with your Drupal installation. Check the <a href="@status">status report</a> for more information.', array('@status' => url('admin/logs/status'))), 'error');
  }

356 357 358 359 360 361
  $map = arg(NULL);
  $result = db_query("SELECT * FROM {menu} WHERE path LIKE 'admin/%%' AND depth = 2 AND visible = 1 AND path != 'admin/help' ORDER BY mleft");
  while ($item = db_fetch_object($result)) {
    _menu_translate($item, $map, MENU_RENDER_LINK);
    if (!$item->access) {
      continue;
362
    }
363 364 365 366 367 368 369
    $block = (array)$item;
    $block['content'] = '';
    if ($item->block_callback && function_exists($item->block_callback)) {
      $function = $item->block_callback;
      $block['content'] .= $function();
    }
    $block['content'] .= theme('admin_block_content', system_admin_menu_block($item));
370 371 372 373 374 375 376 377
    $blocks[] = $block;
  }
  return theme('admin_page', $blocks);
}

/**
 * Provide a single block on the administration overview page.
 */
378 379
function system_admin_menu_block($item) {
  $map = arg(NULL);
380
  $content = array();
381 382 383 384 385
  $result = db_query('SELECT * FROM {menu} WHERE depth = %d AND %d < mleft AND mright < %d ORDER BY mleft', $item->depth + 1, $item->mleft, $item->mright);
  while ($item = db_fetch_object($result)) {
    _menu_translate($item, $map, MENU_RENDER_LINK);
    if (!$item->access) {
      continue;
386
    }
387
    $content[] = (array)$item;
388 389 390 391 392 393 394
  }
  return $content;
}

/**
 * Provide a single block from the administration menu as a page.
 * This function is often a destination for these blocks.
395
 * For example, 'admin/content/types' needs to have a destination to be valid
396 397 398 399
 * in the Drupal menu system, but too much information there might be
 * hidden, so we supply the contents of the block.
 */
function system_admin_menu_block_page() {
400 401
  $item = menu_get_item();
  $content = system_admin_menu_block($item);
402 403 404 405 406 407 408 409 410 411

  $output = theme('admin_block_content', $content);
  return $output;
}

function system_admin_compact_page($mode = 'off') {
  global $user;
  user_save($user, array('admin_compact_mode' => ($mode == 'on')));
  drupal_goto('admin');
}
412

413
/**
414
 * This function allows selection of the theme to show in administration sections.
415
 */
416
function system_admin_theme_settings() {
417 418 419 420 421 422 423 424 425 426 427
  $themes = system_theme_data();
  ksort($themes);
  $options[0] = t('System default');
  foreach ($themes as $theme) {
    $options[$theme->name] = $theme->name;
  }

  $form['admin_theme'] = array(
    '#type' => 'select',
    '#options' => $options,
    '#title' => t('Administration theme'),
428
    '#description' => t('Choose which theme the administration pages should display in. If you choose "System default" the administration pages will use the same theme as the rest of the site.'),
429
    '#default_value' => variable_get('admin_theme', '0'),
430 431 432 433 434
  );

  // In order to give it our own submit, we have to give it the default submit
  // too because the presence of a #submit will prevent the default #submit
  // from being used. Also we want ours first.
435
  $form['#submit']['system_admin_theme_submit'] = array();
436
  $form['#submit']['system_settings_form_submit'] = array();
437
  return system_settings_form($form);
438 439 440
}


441
function system_admin_theme_submit($form_id, $form_values) {
442
  // If we're changing themes, make sure the theme has its blocks initialized.
443
  if ($form_values['admin_theme'] != variable_get('admin_theme', '0')) {
444 445 446 447 448 449 450
    $result = db_query("SELECT status FROM {blocks} WHERE theme = '%s'", $form_values['admin_theme']);
    if (!db_num_rows($result)) {
      system_initialize_theme_blocks($form_values['admin_theme']);
    }
  }
}

451 452 453 454 455 456 457 458 459 460 461 462 463 464
/*
 * Returns a fieldset containing the theme select form.
 *
 * @param $description
 *    description of the fieldset
 * @param $default_value
 *    default value of theme radios
 * @param $weight
 *    weight of the fieldset
 * @return
 *    a form array
 */
function system_theme_select_form($description = '', $default_value = '', $weight = 0) {
  if (user_access('select different theme')) {
465
    $enabled = array();
466 467 468 469 470 471 472 473 474 475
    foreach (list_themes() as $theme) {
      if ($theme->status) {
        $enabled[] = $theme;
      }
    }

    if (count($enabled) > 1) {
      ksort($enabled);

      $form['themes'] = array(
Dries's avatar
Dries committed
476 477 478 479
        '#type' => 'fieldset',
        '#title' => t('Theme configuration'),
        '#description' => $description,
        '#collapsible' => TRUE,
480 481 482 483 484
        '#theme' => 'system_theme_select_form'
      );

      foreach ($enabled as $info) {
        // For the default theme, revert to an empty string so the user's theme updates when the site theme is changed.
485
        $info->key = $info->name == variable_get('theme_default', 'garland') ? '' : $info->name;
486

Dries's avatar
Dries committed
487
        $info->screenshot = dirname($info->filename) .'/screenshot.png';
488
        $screenshot = file_exists($info->screenshot) ? theme('image', $info->screenshot, t('Screenshot for %theme theme', array('%theme' => $info->name)), '', array('class' => 'screenshot'), FALSE) : t('no screenshot');
489

490
        $form['themes'][$info->key]['screenshot'] = array('#value' => $screenshot);
491
        $form['themes'][$info->key]['description'] = array('#type' => 'item', '#title' => $info->name,  '#value' => dirname($info->filename) . ($info->name == variable_get('theme_default', 'garland') ? '<br /> <em>'. t('(site default theme)') .'</em>' : ''));
492 493 494 495 496 497 498 499 500 501 502
        $options[$info->key] = '';
      }

      $form['themes']['theme'] = array('#type' => 'radios', '#options' => $options, '#default_value' => $default_value ? $default_value : '');
      $form['#weight'] = $weight;
      return $form;
    }
  }
}

function theme_system_theme_select_form($form) {
503 504
  foreach (element_children($form) as $key) {
    $row = array();
505
    if (isset($form[$key]['description']) && is_array($form[$key]['description'])) {
506 507 508
      $row[] = drupal_render($form[$key]['screenshot']);
      $row[] = drupal_render($form[$key]['description']);
      $row[] = drupal_render($form['theme'][$key]);
509 510 511 512
    }
    $rows[] = $row;
  }

513
  $header = array(t('Screenshot'), t('Name'), t('Selected'));
514 515 516 517
  $output = theme('table', $header, $rows);
  return $output;
}

Steven Wittens's avatar
Steven Wittens committed
518 519 520 521 522 523
function _system_zonelist() {
  $timestamp = time();
  $zonelist = array(-11, -10, -9.5, -9, -8, -7, -6, -5, -4, -3.5, -3, -2, -1, 0, 1, 2, 3, 3.5, 4, 5, 5.5, 5.75, 6, 6.5, 7, 8, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 14);
  $zones = array();
  foreach ($zonelist as $offset) {
    $zone = $offset * 3600;
Dries's avatar
Dries committed
524
    $zones[$zone] = format_date($timestamp, 'custom', variable_get('date_format_long', 'l, F j, Y - H:i') .' O', $zone);
Steven Wittens's avatar
Steven Wittens committed
525 526 527 528
  }
  return $zones;
}

Dries's avatar
Dries committed
529 530 531 532
function system_site_information_settings() {
  $form['site_name'] = array(
    '#type' => 'textfield',
    '#title' => t('Name'),
533
    '#default_value' => variable_get('site_name', 'Drupal'),
534
    '#description' => t('The name of this website.'),
Dries's avatar
Dries committed
535
    '#required' => TRUE
536
  );
Dries's avatar
Dries committed
537 538 539 540
  $form['site_mail'] = array(
    '#type' => 'textfield',
    '#title' => t('E-mail address'),
    '#default_value' => variable_get('site_mail', ini_get('sendmail_from')),
541
    '#description' => t('A valid e-mail address for this website, used by the auto-mailer during registration, new password requests, notifications, etc.')
542
  );
Dries's avatar
Dries committed
543 544 545 546
  $form['site_slogan'] = array(
    '#type' => 'textfield',
    '#title' => t('Slogan'),
    '#default_value' => variable_get('site_slogan', ''),
547
    '#description' => t('The slogan of this website. Some themes display a slogan when available.')
548 549
  );

Dries's avatar
Dries committed
550 551 552 553
  $form['site_mission'] = array(
    '#type' => 'textarea',
    '#title' => t('Mission'),
    '#default_value' => variable_get('site_mission', ''),
554
    '#description' => t('Your site\'s mission statement or focus.')
555
  );
Dries's avatar
Dries committed
556 557 558 559
  $form['site_footer'] = array(
    '#type' => 'textarea',
    '#title' => t('Footer message'),
    '#default_value' => variable_get('site_footer', ''),
560
    '#description' => t('This text will be displayed at the bottom of each page. Useful for adding a copyright notice to your pages.')
561
  );
Dries's avatar
Dries committed
562 563 564
  $form['anonymous'] = array(
    '#type' => 'textfield',
    '#title' => t('Anonymous user'),
565
    '#default_value' => variable_get('anonymous', t('Anonymous')),
566
    '#description' => t('The name used to indicate anonymous users.')
567
  );
Dries's avatar
Dries committed
568 569 570 571
  $form['site_frontpage'] = array(
    '#type' => 'textfield',
    '#title' => t('Default front page'),
    '#default_value' => variable_get('site_frontpage', 'node'),
572 573
    '#size' => 40,
    '#description' => t('The home page displays content from this relative URL. If unsure, specify "node".'),
574
    '#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q=')
575
  );
576

577
  return system_settings_form($form);
Dries's avatar
Dries committed
578 579 580 581
}

function system_clean_url_settings() {
  $form['clean_url'] = array(
582 583 584 585
    '#type' => 'radios',
    '#title' => t('Clean URLs'),
    '#default_value' => variable_get('clean_url', 0),
    '#options' => array(t('Disabled'), t('Enabled')),
586
    '#description' => t('This option makes Drupal emit "clean" URLs (i.e. without <code>?q=</code> in the URL).'),
587
  );
588

589 590
  if (!variable_get('clean_url', 0)) {
    if (strpos(request_uri(), '?q=') !== FALSE) {
591 592 593 594 595 596 597 598 599 600 601 602
      drupal_add_js(array('cleanURL' => array('success' => t('Your server has been successfully tested to support this feature.'), 'failure' => t('Your system configuration does not currently support this feature. The <a href="http://drupal.org/node/15365">handbook page on Clean URLs</a> has additional troubleshooting information.'), 'testing' => t('Testing clean URLs...'))), 'setting');
      drupal_add_js(drupal_get_path('module', 'system') .'/system.js', 'module');
      drupal_add_js('
// Global Killswitch
if (Drupal.jsEnabled) {
  $(document).ready(function() {
    Drupal.cleanURLsSettingsCheck();
  });
}', 'inline');

      $form['clean_url']['#description'] .= ' <span>'. t('Before enabling clean URLs, you must perform a test to determine if your server is properly configured. If you are able to see this page again after clicking the "Run the clean URL test" link, the test has succeeded and the radio buttons above will be available. If instead you are directed to a "Page not found" error, you will need to change the configuration of your server. The <a href="@handbook">handbook page on Clean URLs</a> has additional troubleshooting information.', array('@handbook' => 'http://drupal.org/node/15365')) .'</span>';

603
      $form['clean_url']['#disabled'] = TRUE;
604 605
      $form['clean_url']['#prefix'] = '<div id="clean-url">';
      $form['clean_url']['#suffix'] = '<p>'. t('<a href="@clean_url">Run the clean url test</a>.', array('@clean_url' => base_path() .'admin/settings/clean-urls')) .'</p></div>';
606 607
    }
    else {
608
      $form['clean_url']['#description'] .= ' '. t('Your server has been successfully tested to support this feature.');
609 610
    }
  }
Dries's avatar
 
Dries committed
611

612
  return system_settings_form($form);
Dries's avatar
Dries committed
613 614 615
}

function system_error_reporting_settings() {
drumm's avatar
drumm committed
616 617

  $form['site_403'] = array(
Dries's avatar
Dries committed
618
    '#type' => 'textfield',
drumm's avatar
drumm committed
619
    '#title' => t('Default 403 (access denied) page'),
Dries's avatar
Dries committed
620
    '#default_value' => variable_get('site_403', ''),
621 622
    '#size' => 40,
    '#description' => t('This page is displayed when the requested document is denied to the current user. If unsure, specify nothing.'),
623
    '#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q=')
624
  );
drumm's avatar
drumm committed
625 626

  $form['site_404'] = array(
Dries's avatar
Dries committed
627
    '#type' => 'textfield',
drumm's avatar
drumm committed
628
    '#title' => t('Default 404 (not found) page'),
Dries's avatar
Dries committed
629
    '#default_value' =>  variable_get('site_404', ''),
630 631
    '#size' => 40,
    '#description' => t('This page is displayed when no other content matches the requested document. If unsure, specify nothing.'),
632
    '#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q=')
633
  );
drumm's avatar
drumm committed
634 635

  $form['error_level'] = array(
636 637
    '#type' => 'select', '#title' => t('Error reporting'), '#default_value' => variable_get('error_level', 1),
    '#options' => array(t('Write errors to the log'), t('Write errors to the log and to the screen')),
drumm's avatar
drumm committed
638
    '#description' =>  t('Where Drupal, PHP and SQL errors are logged. On a production server it is recommended that errors are only written to the error log. On a test server it can be helpful to write logs to the screen.')
639
  );
drumm's avatar
drumm committed
640

Dries's avatar
 
Dries committed
641 642
  $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200), 'format_interval');
  $period['1000000000'] = t('Never');
drumm's avatar
drumm committed
643
  $form['watchdog_clear'] = array(
Dries's avatar
Dries committed
644 645 646 647
    '#type' => 'select',
    '#title' => t('Discard log entries older than'),
    '#default_value' => variable_get('watchdog_clear', 604800),
    '#options' => $period,
drumm's avatar
drumm committed
648
    '#description' => t('The time log entries should be kept. Older entries will be automatically discarded. Requires crontab.')
649
  );
Dries's avatar
 
Dries committed
650

651
  return system_settings_form($form);
Dries's avatar
Dries committed
652
}
Dries's avatar
 
Dries committed
653

654
function system_performance_settings() {
655

656 657 658 659 660 661
  $description = '<p>'. t("The normal cache mode is suitable for most sites and does not cause any side effects. The aggressive cache mode causes Drupal to skip the loading (init) and unloading (exit) of enabled modules when serving a cached page. This results in an additional performance boost but can cause unwanted side effects.") .'</p>';

  $problem_modules = array_unique(array_merge(module_implements('init'), module_implements('exit')));
  sort($problem_modules);

  if (count($problem_modules) > 0) {
662
    $description .= '<p>'. t('<strong class="error">The following enabled modules are incompatible with aggressive mode caching and will not function properly: %modules</strong>', array('%modules' => implode(', ', $problem_modules))) .'.</p>';
663 664
  }
  else {
665
    $description .= '<p>'. t('<strong class="ok">Currently, all enabled modules are compatible with the aggressive caching policy.</strong> Please note, if you use aggressive caching and enable new modules, you will need to check this page again to ensure compatibility.') .'</p>';
666
  }
667 668 669 670 671
  $form['page_cache'] = array(
    '#type' => 'fieldset',
    '#title' => t('Page cache'),
    '#description' => t('Enabling the cache will offer a significant performance boost. Drupal can store and send compressed cached pages requested by <em>anonymous</em> users. By caching a web page, Drupal does not have to construct the page each time someone wants to view it.'),
  );
672

673
  $form['page_cache']['cache'] = array(
Dries's avatar
Dries committed
674
    '#type' => 'radios',
675
    '#title' => t('Caching mode'),
Dries's avatar
Dries committed
676
    '#default_value' => variable_get('cache', CACHE_DISABLED),
677 678
    '#options' => array(CACHE_DISABLED => t('Disabled'), CACHE_NORMAL => t('Normal (recommended, no side effects)'), CACHE_AGGRESSIVE => t('Aggressive (experts only, possible side effects)')),
    '#description' => $description
679 680
  );

681 682
  $period = drupal_map_assoc(array(0, 60, 180, 300, 600, 900, 1800, 2700, 3600, 10800, 21600, 32400, 43200, 86400), 'format_interval');
  $period[0] = t('none');
683
  $form['page_cache']['cache_lifetime'] = array(
Dries's avatar
Dries committed
684 685 686 687
    '#type' => 'select',
    '#title' => t('Minimum cache lifetime'),
    '#default_value' => variable_get('cache_lifetime', 0),
    '#options' => $period,
688
    '#description' => t('On high-traffic sites it can become necessary to enforce a minimum cache lifetime. The minimum cache lifetime is the minimum amount of time that will go by before the cache is emptied and recreated. A larger minimum cache lifetime offers better performance, but users will not see new content for a longer period of time.')
689
  );
690

691 692 693 694 695
  $form['bandwidth_optimizations'] = array(
    '#type' => 'fieldset',
    '#title' => t('Bandwidth optimizations'),
    '#description' => t('These options can help reduce both the size and number of requests made to your website. This can reduce the server load, the bandwidth used, and the average page loading time for your visitors.')
  );
696

697
  $directory = file_directory_path();
698
  $is_writable = is_dir($directory) && is_writable($directory) && (variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC) == FILE_DOWNLOADS_PUBLIC);
699 700 701 702 703 704 705 706 707 708 709
  $form['bandwidth_optimizations']['preprocess_css'] = array(
    '#type' => 'radios',
    '#title' => t('Aggregate and compress CSS files'),
    '#default_value' => variable_get('preprocess_css', FALSE) && $is_writable,
    '#disabled' => !$is_writable,
    '#options' => array(t('Disabled'), t('Enabled')),
    '#description' => t("Some Drupal modules include their own CSS files. When these modules are enabled, each module's CSS file adds an additional HTTP request to the page, which can increase the load time of each page. These HTTP requests can also slightly increase server load. It is recommended to only turn this option on when your site is in production, as it can interfere with theme development. This option is disabled if you have not set up your files directory, or if your download method is set to private."),
  );

  $form['#submit']['system_settings_form_submit'] = array();
  $form['#submit']['drupal_clear_css_cache'] = array();
Dries's avatar
 
Dries committed
710

711
  return system_settings_form($form);
Dries's avatar
Dries committed
712
}
Dries's avatar
 
Dries committed
713

Dries's avatar
Dries committed
714
function system_file_system_settings() {
715

Dries's avatar
Dries committed
716
  $form['file_directory_path'] = array(
717 718 719 720
    '#type' => 'textfield',
    '#title' => t('File system path'),
    '#default_value' => file_directory_path(),
    '#maxlength' => 255,
721
    '#description' => t('A file system path where the files will be stored. This directory has to exist and be writable by Drupal. If the download method is set to public this directory has to be relative to the Drupal installation directory, and be accessible over the web. When download method is set to private this directory should not be accessible over the web. Changing this location after the site has been in use will cause problems so only change this setting on an existing site if you know what you are doing.'),
722
    '#after_build' => array('system_check_directory'),
723 724
  );

Dries's avatar
Dries committed
725
  $form['file_directory_temp'] = array(
726 727 728 729 730
    '#type' => 'textfield',
    '#title' => t('Temporary directory'),
    '#default_value' => file_directory_temp(),
    '#maxlength' => 255,
    '#description' => t('Location where uploaded files will be kept during previews. Relative paths will be resolved relative to the Drupal installation directory.'),
731
    '#after_build' => array('system_check_directory'),
732 733
  );

Dries's avatar
Dries committed
734 735 736 737
  $form['file_downloads'] = array(
    '#type' => 'radios',
    '#title' => t('Download method'),
    '#default_value' => variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC),
738
    '#options' => array(FILE_DOWNLOADS_PUBLIC => t('Public - files are available using HTTP directly.'), FILE_DOWNLOADS_PRIVATE => t('Private - files are transferred by Drupal.')),
739
    '#description' => t('If you want any sort of access control on the downloading of files, this needs to be set to <em>private</em>. You can change this at any time, however all download URLs will change and there may be unexpected problems so it is not recommended.')
740
  );
Dries's avatar
 
Dries committed
741

742
  return system_settings_form($form);
Dries's avatar
Dries committed
743 744 745
}

function system_image_toolkit_settings() {
746 747
  $toolkits_available = image_get_available_toolkits();
  if (count($toolkits_available) > 1) {
Dries's avatar
Dries committed
748 749 750 751 752
    $form['image_toolkit'] = array(
      '#type' => 'radios',
      '#title' => t('Select an image processing toolkit'),
      '#default_value' => variable_get('image_toolkit', image_get_toolkit()),
      '#options' => $toolkits_available
753
    );
754
  }
Dries's avatar
Dries committed
755
  else {
756
    $form['image_toolkit'] = array('#value' => '<p>'. t("No image toolkits found. Drupal will use PHP's built-in GD library for image handling.") .'</p>');
Dries's avatar
Dries committed
757
  }
758 759
  $form['image_toolkit_settings'] = image_toolkit_invoke('settings');
  return system_settings_form($form);
Dries's avatar
Dries committed
760 761 762
}

function system_rss_feeds_settings() {
763

Dries's avatar
Dries committed
764 765 766 767
  $form['feed_default_items'] = array(
    '#type' => 'select',
    '#title' => t('Number of items per feed'),
    '#default_value' => variable_get('feed_default_items', 10),
768 769
    '#options' => drupal_map_assoc(array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30)),
    '#description' => t('The default number of items to include in a feed.')
770
  );
Dries's avatar
Dries committed
771 772 773
  $form['feed_item_length'] = array(
    '#type' => 'select',
    '#title' => t('Display of XML feed items'),
Dries's avatar
Dries committed
774
    '#default_value' => variable_get('feed_item_length', 'teaser'),
775 776
    '#options' => array('title' => t('Titles only'), 'teaser' => t('Titles plus teaser'), 'fulltext' => t('Full text')),
    '#description' => t('Global setting for the length of XML feed items that are output by default.')
777
  );
778

779
  return system_settings_form($form);
Dries's avatar
Dries committed
780 781 782
}

function system_date_time_settings() {
783
  // Date settings:
Steven Wittens's avatar
Steven Wittens committed
784
  $zones = _system_zonelist();
785

786
  // Date settings: possible date formats
787
  $dateshort = array('Y-m-d H:i', 'm/d/Y - H:i', 'd/m/Y - H:i', 'Y/m/d - H:i',
788
           'd.m.Y - H:i', 'm/d/Y - g:ia', 'd/m/Y - g:ia', 'Y/m/d - g:ia',
Dries's avatar
 
Dries committed
789 790
           'M j Y - H:i', 'j M Y - H:i', 'Y M j - H:i',
           'M j Y - g:ia', 'j M Y - g:ia', 'Y M j - g:ia');
Dries's avatar
 
Dries committed
791 792
  $datemedium = array('D, Y-m-d H:i', 'D, m/d/Y - H:i', 'D, d/m/Y - H:i',
          'D, Y/m/d - H:i', 'F j, Y - H:i', 'j F, Y - H:i', 'Y, F j - H:i',
Dries's avatar
 
Dries committed
793
          'D, m/d/Y - g:ia', 'D, d/m/Y - g:ia', 'D, Y/m/d - g:ia',
794
          'F j, Y - g:ia', 'j F Y - g:ia', 'Y, F j - g:ia', 'j. F Y - G:i');
Dries's avatar
 
Dries committed
795
  $datelong = array('l, F j, Y - H:i', 'l, j F, Y - H:i', 'l, Y,  F j - H:i',
796
        'l, F j, Y - g:ia', 'l, j F Y - g:ia', 'l, Y,  F j - g:ia', 'l, j. F Y - G:i');
Dries's avatar
 
Dries committed
797

798
  // Date settings: construct choices for user
Dries's avatar
 
Dries committed
799
  foreach ($dateshort as $f) {
Dries's avatar
 
Dries committed
800
    $dateshortchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
801 802
  }
  foreach ($datemedium as $f) {
Dries's avatar
 
Dries committed
803
    $datemediumchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
804 805
  }
  foreach ($datelong as $f) {
Dries's avatar
 
Dries committed
806
    $datelongchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
807 808
  }

Dries's avatar
Dries committed
809 810 811 812 813 814
  $form['date_default_timezone'] = array(
    '#type' => 'select',
    '#title' => t('Default time zone'),
    '#default_value' => variable_get('date_default_timezone', 0),
    '#options' => $zones,
    '#description' => t('Select the default site time zone.')
815 816
  );

Dries's avatar
Dries committed
817 818 819 820 821
  $form['configurable_timezones'] = array(
    '#type' => 'radios',
    '#title' => t('Configurable time zones'),
    '#default_value' => variable_get('configurable_timezones', 1),
    '#options' => array(t('Disabled'), t('Enabled')),
822
    '#description' => t('Enable or disable user-configurable time zones. When enabled, users can set their own time zone and dates will be updated accordingly.')
823 824
  );

Dries's avatar
Dries committed
825 826 827
  $form['date_format_short'] = array(
    '#type' => 'select',
    '#title' => t('Short date format'),
828
    '#default_value' => variable_get('date_format_short', $dateshort[1]),
Dries's avatar
Dries committed
829 830
    '#options' => $dateshortchoices,
    '#description' => t('The short format of date display.')
831 832
  );

Dries's avatar
Dries committed
833 834 835
  $form['date_format_medium'] = array(
    '#type' => 'select',
    '#title' => t('Medium date format'),
836
    '#default_value' => variable_get('date_format_medium', $datemedium[1]),
Dries's avatar
Dries committed
837 838
    '#options' => $datemediumchoices,
    '#description' => t('The medium sized date display.')
839 840
  );

Dries's avatar
Dries committed
841 842 843 844 845 846
  $form['date_format_long'] = array(
    '#type' => 'select',
    '#title' => t('Long date format'),
    '#default_value' => variable_get('date_format_long', $datelong[0]),
    '#options' => $datelongchoices,
    '#description' => t('Longer date format used for detailed display.')
847 848
  );

Dries's avatar
Dries committed
849 850 851 852
  $form['date_first_day'] = array(
    '#type' => 'select',
    '#title' => t('First day of week'),
    '#default_value' => variable_get('date_first_day', 0),
853 854
    '#options' => array(0 => t('Sunday'), 1 => t('Monday'), 2 => t('Tuesday'), 3 => t('Wednesday'), 4 => t('Thursday'), 5 => t('Friday'), 6 => t('Saturday')),
    '#description' => t('The first day of the week for calendar views.')
855
  );
Dries's avatar
 
Dries committed
856

857
  return system_settings_form($form);
Dries's avatar
Dries committed
858
}
Dries's avatar
 
Dries committed
859

860
function system_site_maintenance_settings() {
861

Dries's avatar
Dries committed
862
  $form['site_offline'] = array(
863
    '#type' => 'radios',
864
    '#title' => t('Site status'),
865
    '#default_value' => variable_get('site_offline', 0),
866
    '#options' => array(t('Online'), t('Off-line')),
867
    '#description' => t('When set to "Online", all visitors will be able to browse your site normally. When set to "Off-line", only users with the "administer site configuration" permission will be able to access your site to perform maintenance; all other visitors will see the site off-line message configured below. Authorized users can log in during "Off-line" mode directly via the <a href="@user-login">user login</a> page.', array('@user-login' => url('user'))),
868 869
  );

Dries's avatar
Dries committed
870
  $form['site_offline_message'] = array(
871
    '#type' => 'textarea',
872
    '#title' => t('Site off-line message'),
873
    '#default_value' => variable_get('site_offline_message', t('@site is currently under maintenance. We should be back shortly. Thank you for your patience.', array('@site' => variable_get('site_name', 'Drupal')))),
874
    '#description' => t('Message to show visitors when the site is in off-line mode.')
875 876
  );

877
  return system_settings_form($form);
Dries's avatar
Dries committed
878 879
}

880 881
/**
 * Checks the existence of the directory specified in $form_element. This
Dries's avatar
Dries committed
882
 * function is called from the system_settings form to check both the
883 884 885 886 887 888 889
 * file_directory_path and file_directory_temp directories. If validation
 * fails, the form element is flagged with an error from within the
 * file_check_directory function.
 *
 * @param $form_element
 *   The form element containing the name of the directory to check.
 */
890
function system_check_directory($form_element) {
891 892 893 894
  file_check_directory($form_element['#value'], FILE_CREATE_DIRECTORY, $form_element['#parents'][0]);
  return $form_element;
}

Dries's avatar
 
Dries committed
895 896 897 898
/**
 * Retrieves the current status of an array of files in the system table.
 */
function system_get_files_database(&$files, $type) {
Dries's avatar
 
Dries committed
899
  // Extract current files from database.