system.module 56.5 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.
 */

Dries's avatar
   
Dries committed
9
10
11
12
/**
 * Implementation of hook_help().
 */
function system_help($section) {
13
  switch ($section) {
14
15
16
17
18
19
20
    case 'admin/help#system':
      $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 web site 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 web site performance.  The settings module provides control over preferences, behaviours including visual and operational settings.') .'</p>';
      $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.') .'</p>';
      $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>';
      $output .= t('<p>You can</p>
<ul>
<li>activate your cron job on the cron page <a href="%file-cron">cron.php</a>.</li>
21
<li>read how to <a href="%external-http-drupal-org-cron">configure cron jobs</a>.</li>
22
23
<li>administer cache settings in <a href="%admin-settings">administer &gt;&gt; settings</a>.</li>
</ul>
24
', array('%file-cron' => 'cron.php', '%external-http-drupal-org-cron' => 'http://drupal.org/cron', '%admin-settings' => url('admin/settings')));
25
26
27
28
      $output .= '<p>'. t('For more information please read the configuration and customization handbook <a href="%system">System page</a>.', array('%system' => 'http://www.drupal.org/handbook/modules/system/')) .'</p>';
      return $output;
    case 'admin/modules#description':
      return t('Handles general site configuration for administrators.');
29
30
    case 'admin':
      return t('<p>Welcome to the administration section. Below are the most recent system events.</p>');
31
    case 'admin/settings':
32
      return t('<p>General configuration options for your site. Set up the name of the site, e-mail address used in mail-outs, clean URL options, caching, etc.</p>');
Dries's avatar
   
Dries committed
33
    case 'admin/themes':
34
      return t('<p>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>');
Dries's avatar
   
Dries committed
35
    case 'admin/themes/settings':
36
      return t('<p>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>');
Dries's avatar
   
Dries committed
37
    case 'admin/themes/settings/'. arg(3):
38
39
      $reference = explode('.', arg(3), 2);
      $theme = array_pop($reference);
40
      return t('<p>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.</p>', array('%template' => $theme, '%global' => url('admin/themes/settings')));
Dries's avatar
   
Dries committed
41
    case 'admin/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>', array('%permissions' => url('admin/access/permissions'), '%throttle' => url('admin/settings/throttle')));
43
  }
Dries's avatar
   
Dries committed
44
45
}

Dries's avatar
   
Dries committed
46
47
48
/**
 * Implementation of hook_perm().
 */
Dries's avatar
 
Dries committed
49
function system_perm() {
50
  return array('administer site configuration', 'access administration pages', 'select different theme');
Dries's avatar
   
Dries committed
51
52
}

53
54
55
56
57
/**
 * Implementation of hook_elements().
 */
function system_elements() {
  // Top level form
58
  $type['form'] = array('#method' => 'post', '#action' => request_uri());
59
60

  // Inputs
61
  $type['checkbox'] = array('#input' => TRUE, '#return_value' => 1);
62
63
  $type['submit'] = array('#input' => TRUE, '#name' => 'op', '#button_type' => 'submit', '#form_submitted' => TRUE);
  $type['button'] = array('#input' => TRUE, '#name' => 'op', '#button_type' => 'submit', '#form_submitted' => FALSE);
64
65
  $type['textfield'] = array('#input' => TRUE, '#size' => 60, '#maxlength' => 128, '#autocomplete_path' => FALSE);
  $type['password'] = array('#input' => TRUE, '#size' => 30, '#maxlength' => 64);
66
67
68
69
70
  $type['password_confirm'] = array(
    '#input' => TRUE,
    '#value' => 'pass',
    'pass1' => array('#type' => 'password', '#size' => 12, '#maxlength' => 24),
    'pass2' => array('#type' => 'password', '#size' => 12, '#maxlength' => 24),
71
    '#validate' => array('password_confirm_validate' => array()),
72
  );
73
  $type['textarea'] = array('#input' => TRUE, '#cols' => 60, '#rows' => 5);
74
  $type['radios'] = array('#input' => TRUE, '#process' => array('expand_radios' => array()));
75
  $type['radio'] = array('#input' => TRUE);
76
  $type['checkboxes'] = array('#input' => TRUE, '#process' => array('expand_checkboxes' => array()), '#tree' => TRUE);
77
  $type['select'] = array('#input' => TRUE);
78
  $type['weight'] = array('#input' => TRUE, '#delta' => 10, '#default_value' => 0);
79
  $type['date'] = array('#input' => TRUE, '#process' => array('expand_date' => array()));
80
  $type['file'] = array('#input' => TRUE, '#size' => 60);
81
82
83

  // Form structure
  $type['item'] = array();
84
85
86
87
  $type['hidden'] = array('#input' => TRUE);
  $type['value'] = array('#input' => TRUE);
  $type['markup'] = array('#prefix' => '', '#suffix' => '');
  $type['fieldset'] = array('#collapsible' => FALSE, '#collapsed' => FALSE);
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
 */
Dries's avatar
   
Dries committed
94
function system_menu($may_cache) {
Dries's avatar
   
Dries committed
95
  $items = array();
Dries's avatar
   
Dries committed
96

Dries's avatar
   
Dries committed
97
98
99
100
101
102
  if ($may_cache) {
    $items[] = array('path' => 'system/files', 'title' => t('file download'),
      'callback' => 'file_download',
      'access' => TRUE,
      'type' => MENU_CALLBACK);

103
104
105
106
107
108
    // Clean URL tester
    $items[] = array('path' => 'system/test',
      'callback' => 'system_test',
      'access' => TRUE,
      'type' => MENU_CALLBACK);

Dries's avatar
   
Dries committed
109
110
    $access = user_access('administer site configuration');

111
112
    $items[] = array('path' => 'admin', 'title' => t('administer'),
      'access' => user_access('access administration pages'),
Dries's avatar
   
Dries committed
113
      'callback' => 'watchdog_overview',
114
115
      'weight' => 9);

Dries's avatar
   
Dries committed
116
117
118
119
    // Themes:
    $items[] = array('path' => 'admin/themes', 'title' => t('themes'),
      'callback' => 'system_themes', 'access' => $access);

Dries's avatar
   
Dries committed
120
    $items[] = array('path' => 'admin/themes/select', 'title' => t('list'),
Dries's avatar
   
Dries committed
121
122
123
124
125
126
127
128
129
130
131
132
133
      'callback' => 'system_themes', 'access' => $access,
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -1);

    $items[] = array('path' => 'admin/themes/settings', 'title' => t('configure'),
      'callback' => 'system_theme_settings', 'access' => $access,
      'type' => MENU_LOCAL_TASK);

    // Theme configuration subtabs
    $items[] = array('path' => 'admin/themes/settings/global', 'title' => t('global settings'),
      'callback' => 'system_theme_settings', 'access' => $access,
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -1);

    foreach (list_themes() as $theme) {
134
135
136
137
138
      if ($theme->status) {
        $items[] = array('path' => 'admin/themes/settings/'. $theme->name, 'title' => $theme->name,
        'callback' => 'system_theme_settings', 'callback arguments' => array($theme->name), 'access' => $access,
        'type' => MENU_LOCAL_TASK);
      }
Dries's avatar
   
Dries committed
139
140
141
142
143
144
145
146
147
    }

    // Modules:
    $items[] = array('path' => 'admin/settings', 'title' => t('settings'),
      'callback' => 'system_site_settings', 'access' => $access);
    foreach (module_list() as $name) {
      if (module_hook($name, 'settings')) {
        $items[] = array('path' => 'admin/settings/'. $name, 'title' => t($name));
      }
Dries's avatar
   
Dries committed
148
    }
Dries's avatar
   
Dries committed
149
150
    $items[] = array('path' => 'admin/modules', 'title' => t('modules'),
      'callback' => 'system_modules', 'access' => $access);
Dries's avatar
   
Dries committed
151
  }
Dries's avatar
   
Dries committed
152
153

  return $items;
Dries's avatar
 
Dries committed
154
155
}

156
157
158
159
/**
 * Menu callback: dummy clean URL tester.
 */
function system_test() {
160
161
  variable_set('clean_url_ok', 1);
  exit;
162
163
}

Dries's avatar
   
Dries committed
164
165
166
167
168
/**
 * Implementation of hook_user().
 *
 * Allows users to individually set their theme and time zone.
 */
169
170
function system_user($type, $edit, &$user, $category = NULL) {
  if ($type == 'form' && $category == 'account') {
171
    if (user_access('select different theme')) {
172
      $themes = array_filter(list_themes(), create_function('$theme', 'return $theme->status;'));
Dries's avatar
   
Dries committed
173

174
175
      if (count($themes) > 1) {
        ksort($themes);
Dries's avatar
   
Dries committed
176

177
178
179
180
181
182
183
        // Reset to follow site default theme if user selects the site default
        if ($key == variable_get('theme_default', 'bluemarine')) {
          $key = '';
          if ($edit['theme'] == variable_get('theme_default', 'bluemarine')) {
            $edit['theme'] = '';
          }
        }
Dries's avatar
   
Dries committed
184

185
186
187
188
189
190
        $form['themes'] = array(
          '#type' => 'fieldset', '#title' => t('Theme configuration'), '#description' => t('Selecting a different theme will change the look and feel of the site.'), '#weight' => 2, '#collapsible' => TRUE, '#theme' => 'system_user');

        foreach ($themes as $info) {
          $info->screenshot = dirname($info->filename) . '/screenshot.png';
          $screenshot = file_exists($info->screenshot) ? theme('image', $info->screenshot, t('Screenshot for %theme theme', array('%theme' => $info->name)), '', array('class' => 'screenshot'), false) : t('no screenshot');
191

192
193
194
195
196
197
198
199
         $form['themes'][$info->name]['screenshot'] = array('#type' => 'markup', '#value' => $screenshot);
          $form['themes'][$info->name]['description'] = array('#type' => 'item', '#title' => $info->name,  '#value' => dirname($info->filename));
          $options[$info->name] = '';
        }

        $form['themes']['theme'] = array('#type' => 'radios', '#options' => $options, '#default_value' => $edit['theme'] ? $edit['theme'] : variable_get('theme_default', 'bluemarine'));
      }
    }
200

201
    if (variable_get('configurable_timezones', 1)) {
Steven Wittens's avatar
Steven Wittens committed
202
      $zones = _system_zonelist();
203
204
      $form['timezone'] = array('#type'=>'fieldset', '#title' => t('Locale settings'), '#weight' => 6);
      $form['timezone']['timezone'] = array(
205
        '#type' => 'select', '#title' => t('Time zone'), '#default_value' => strlen($edit['timezone']) ? $edit['timezone'] : variable_get('date_default_timezone', 0),
206
        '#options' => $zones, '#description' => t('Select your current local time. Dates and times throughout this site will be displayed using this time zone.')
207
      );
Dries's avatar
   
Dries committed
208
    }
209
    return $form;
Dries's avatar
   
Dries committed
210
  }
Dries's avatar
   
Dries committed
211
212
}

213
214
215
216
217
218
219
220
221
222
223
function theme_system_user($form) {
  foreach (element_children($form) as $key) {
    $row = array();
    if (is_array($form[$key]['description'])) {
      $row[] = form_render($form[$key]['screenshot']);
      $row[] = form_render($form[$key]['description']);
      $row[] = form_render($form['theme'][$key]);
    }
    $rows[] = $row;
  }

224
  $header = array(t('Screenshot'), t('Name'), t('Selected'));
225
226
227
228
  $output = theme('table', $header, $rows);
  return $output;
}

Steven Wittens's avatar
Steven Wittens committed
229
230
231
232
233
234
235
236
237
238
239
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;
    $zones[$zone] = format_date($timestamp, 'custom', variable_get('date_format_long', 'l, F j, Y - H:i') . ' O', $zone);
  }
  return $zones;
}

Dries's avatar
   
Dries committed
240
function system_view_general() {
241
  // General settings:
242
  $form['general'] = array(
243
244
    '#type' => 'fieldset', '#title' => t('General settings'),
    '#collapsible' => TRUE, '#collapsed' => TRUE
245
246
  );
  $form['general']['site_name'] = array(
247
248
    '#type' => 'textfield', '#title' => t('Name'), '#default_value' => variable_get('site_name', 'drupal'),
    '#description' => t('The name of this web site.')
249
250
  );
  $form['general']['site_mail'] = array(
251
    '#type' => 'textfield', '#title' => t('E-mail address'), '#default_value' => variable_get('site_mail', ini_get('sendmail_from')),
252
    '#description' => t('A valid e-mail address for this website, used by the auto-mailer during registration, new password requests, notifications, etc.')
253
254
  );
  $form['general']['site_slogan'] = array(
255
    '#type' => 'textfield', '#title' => t('Slogan'), '#default_value' => variable_get('site_slogan', ''),
256
    '#description' => t('The slogan of this website. Some themes display a slogan when available.')
257
258
259
  );

  $form['general']['site_mission'] = array(
260
    '#type' => 'textarea', '#title' => t('Mission'), '#default_value' => variable_get('site_mission', ''),
261
    '#description' => t('Your site\'s mission statement or focus.')
262
263
  );
  $form['general']['site_footer'] = array(
264
    '#type' => 'textarea', '#title' => t('Footer message'), '#default_value' => variable_get('site_footer', ''),
265
    '#description' => t('This text will be displayed at the bottom of each page.  Useful for adding a copyright notice to your pages.')
266
267
  );
  $form['general']['anonymous'] = array(
268
269
    '#type' => 'textfield', '#title' => t('Anonymous user'), '#default_value' => variable_get('anonymous', 'Anonymous'),
    '#description' => t('The name used to indicate anonymous users.')
270
271
  );
  $form['general']['site_frontpage'] = array(
272
273
    '#type' => 'textfield', '#title' => t('Default front page'), '#default_value' => variable_get('site_frontpage', 'node'),
    '#description' => t('The home page displays content from this relative URL.  If you are not using clean URLs, specify the part after "?q=".  If unsure, specify "node".')
274
  );
275

276
  // We check for clean URL support using an image on the client side.
277
  $form['general']['clean_url'] = array(
278
279
    '#type' => 'radios', '#title' => t('Clean URLs'), '#default_value' => variable_get('clean_url', 0), '#options' => array(t('Disabled'), t('Enabled')),
    '#description' => t('This option makes Drupal emit clean URLs (i.e. without <code>?q=</code> in the URL). You\'ll need <code>ModRewrite</code> support for this to work. See the <code>.htaccess</code> file in Drupal\'s top-level directory for more information.')
280
281
  );

282
283
284
  variable_set('clean_url_ok', 0);
  global $base_url;
  // We will use a random URL so there is no way a proxy or a browser could cache the "no such image" answer.
285
  $form['general']['clean_url_test'] = array('#type' => 'markup', '#value' => '<img style="position: relative; left: -1000em;" src="'. $base_url. '/system/test/'. user_password(20) .'.png" alt="" />');
Dries's avatar
   
Dries committed
286

287
  // Error handling:
288

289
  $form['errors'] = array( '#type' => 'fieldset', '#title' =>t('Error handling'), '#collapsible' => TRUE, '#collapsed' => TRUE );
290
  $form['errors']['site_403'] = array(
291
292
    '#type' => 'textfield', '#title' => t('Default 403 (access denied) page'), '#default_value' => variable_get('site_403', ''),
    '#description' => t('This page is displayed when the requested document is denied to the current user.  If you are not using clean URLs, specify the part after "?q=". If unsure, specify nothing.')
293
294
295
  );

  $form['errors']['site_404'] = array(
296
297
    '#type' => 'textfield', '#title' => t('Default 404 (not found) page'), '#default_value' =>  variable_get('site_404', ''),
    '#description' => t('This page is displayed when no other content matches the requested document.  If you are not using clean URLs, specify the part after "?q=". If unsure, specify nothing.')
298
299
300
  );

  $form['errors']['error_level'] = array(
301
302
303
    '#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')),
    '#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.')
304
305
  );

Dries's avatar
   
Dries committed
306
307
  $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200), 'format_interval');
  $period['1000000000'] = t('Never');
308
  $form['errors']['watchdog_clear'] = array(
309
310
    '#type' => 'select', '#title' => t('Discard log entries older than'), '#default_value' => variable_get('watchdog_clear', 604800), '#options' => $period,
    '#description' => t('The time log entries should be kept.  Older entries will be automatically discarded.  Requires crontab.')
311
  );
Dries's avatar
   
Dries committed
312

Dries's avatar
 
Dries committed
313

314
  // Caching:
315
  $form['cache'] = array('#type' => 'fieldset', '#title' => t('Cache settings'), '#collapsible' => TRUE, '#collapsed' => TRUE);
316
317

  $form['cache']['cache']  = array(
318
319
320
    '#type' => 'radios',  '#title' => t('Page cache'), '#default_value' => variable_get('cache', CACHE_DISABLED),
    '#options' => array(CACHE_DISABLED => t('Disabled'), CACHE_ENABLED => t('Enabled')),
    '#description' => t("Drupal has a caching mechanism which stores dynamically generated web pages in a database.  By caching a web page, Drupal 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 \"anonymous\" users are cached.  In order to reduce server load and save bandwidth, Drupal stores and sends compressed cached pages.")
321
322
  );

323
324
  $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');
325
  $form['cache']['cache_lifetime'] = array(
326
327
    '#type' => 'select', '#title' => t('Minimum cache lifetime'), '#default_value' => variable_get('cache_lifetime', 0), '#options' => $period,
    '#description' => t('Enabling the cache will offer a sufficient performance boost for most low-traffic and medium-traffic sites.  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.')
328
  );
Dries's avatar
   
Dries committed
329

Dries's avatar
   
Dries committed
330

331
  // File system:
332
  $form['files'] = array('#type' => 'fieldset', '#title' => t('File system settings'), '#collapsible' => TRUE, '#collapsed' => TRUE);
333
334

  $form['files']['file_directory_path'] = array(
335
336
337
338
339
    '#type' => 'textfield',
    '#title' => t('File system path'),
    '#default_value' => file_directory_path(),
    '#maxlength' => 255,
    '#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 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.'),
340
    '#after_build' => 'system_check_directory',
341
342
  );

343
  $form['files']['file_directory_temp'] = array(
344
345
346
347
348
    '#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.'),
349
    '#after_build' => 'system_check_directory',
350
351
352
  );

  $form['files']['file_downloads'] = array(
353
354
355
    '#type' => 'radios', '#title' => t('Download method'), '#default_value' => variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC),
    '#options' => array(FILE_DOWNLOADS_PUBLIC => t('Public - files are available using http directly.'), FILE_DOWNLOADS_PRIVATE => t('Private - files are transferred by Drupal.')),
    '#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.')
356
  );
Dries's avatar
   
Dries committed
357

358
  /*
359
  // Image handling:
360
  $group = array();
361
362
  $toolkits_available = image_get_available_toolkits();
  if (count($toolkits_available) > 1) {
363
    $group['image_toolkit'] = array(
364
365
      '#type' => 'radios', '#title' => t('Select an image processing toolkit'),
      '#default_value' => variable_get('image_toolkit', image_get_toolkit()), '#options' => $toolkits_available
366
    );
367
  }
368
369
  $group['toolkit'] = image_toolkit_invoke('settings');
  if (is_array($group)) {
370
    $form['image'] = array('#type' => 'fieldset', '#title' => t('Image handling'), '#collapsible' => TRUE, '#collapsed' => true);
371
    $form['image'] = array_merge($form['image'], $group);
372
  }
373
  */
374

375
  // Feed settings
376
  $form['feed'] = array('#type' => 'fieldset', '#title' => t('RSS feed settings'), '#collapsible' => TRUE, '#collapsed' => TRUE);
377
  $form['feed']['feed_default_items'] = array(
378
379
380
    '#type' => 'select', '#title' => t('Number of items per feed'), '#default_value' => variable_get('feed_default_items', 10),
    '#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.')
381
382
  );
  $form['feed']['feed_item_length'] = array(
383
384
385
    '#type' => 'select', '#title' => t('Display of XML feed items'), '#default_value' => variable_get('feed_item_length','teaser'),
    '#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.')
386
  );
387

388
  // Date settings:
Steven Wittens's avatar
Steven Wittens committed
389
  $zones = _system_zonelist();
390

391
  // Date settings: possible date formats
Dries's avatar
   
Dries committed
392
  $dateshort = array('Y-m-d H:i','m/d/Y - H:i', 'd/m/Y - H:i', 'Y/m/d - H:i',
Dries's avatar
   
Dries committed
393
394
395
           'm/d/Y - g:ia', 'd/m/Y - g:ia', 'Y/m/d - g:ia',
           '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
396
397
  $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
398
          'D, m/d/Y - g:ia', 'D, d/m/Y - g:ia', 'D, Y/m/d - g:ia',
399
          'F j, Y - g:ia', 'j F Y - g:ia', 'Y, F j - g:ia');
Dries's avatar
   
Dries committed
400
  $datelong = array('l, F j, Y - H:i', 'l, j F, Y - H:i', 'l, Y,  F j - H:i',
401
        'l, F j, Y - g:ia', 'l, j F Y - g:ia', 'l, Y,  F j - g:ia');
Dries's avatar
   
Dries committed
402

403
  // Date settings: construct choices for user
Dries's avatar
   
Dries committed
404
  foreach ($dateshort as $f) {
Dries's avatar
   
Dries committed
405
    $dateshortchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
   
Dries committed
406
407
  }
  foreach ($datemedium as $f) {
Dries's avatar
   
Dries committed
408
    $datemediumchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
   
Dries committed
409
410
  }
  foreach ($datelong as $f) {
Dries's avatar
   
Dries committed
411
    $datelongchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
   
Dries committed
412
413
  }

414
  $form['dates'] = array('#type' => 'fieldset', '#title' => t('Date settings'), '#collapsible' => TRUE, '#collapsed' => TRUE);
415
  $form['dates']['date_default_timezone'] = array(
416
417
    '#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.')
418
419
420
  );

  $form['dates']['configurable_timezones'] = array(
421
422
    '#type' => 'radios', '#title' => t('Configurable time zones'), '#default_value' => variable_get('configurable_timezones', 1), '#options' => array(t('Disabled'), t('Enabled')),
    '#description' => t('Enable or disable user-configurable time zones.  When enabled, users can set their own time zone and dates will be updated accordingly.')
423
424
425
  );

  $form['dates']['date_format_short'] = array(
426
427
    '#type' => 'select', '#title' => t('Short date format'), '#default_value' => variable_get('date_format_short', $dateshort[0]),
    '#options' => $dateshortchoices,  '#description' => t('The short format of date display.')
428
429
430
  );

  $form['dates']['date_format_medium'] = array(
431
432
    '#type' => 'select', '#title' => t('Medium date format'), '#default_value' => variable_get('date_format_medium', $datemedium[0]),
    '#options' => $datemediumchoices, '#description' => t('The medium sized date display.')
433
434
435
  );

  $form['dates']['date_format_long'] = array(
436
437
    '#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.')
438
439
440
  );

  $form['dates']['date_first_day'] = array(
441
442
443
    '#type' => 'select', '#title' => t('First day of week'), '#default_value' => variable_get('date_first_day', 0),
    '#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.')
444
  );
Dries's avatar
   
Dries committed
445

Dries's avatar
 
Dries committed
446

447
  // Site off-line/maintenance settings
448
  $form['site_status'] = array(
449
450
451
452
    '#type' => 'fieldset',
    '#title' => t('Site maintenance'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE);
453
454

  $form['site_status']['site_offline'] = array(
455
456
457
    '#type' => 'radios',
    '#title' => t('Site status'),
    '#default_value' => variable_get('site_offline', 0),
458
459
    '#options' => array(t('Online'), t('Off-line')),
    '#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'))),
460
461
462
  );

  $form['site_status']['site_offline_message'] = array(
463
    '#type' => 'textarea',
464
    '#title' => t('Site off-line message'),
465
    '#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', t('This Drupal site'))))),
466
    '#description' => t('Message to show visitors when the site is in off-line mode.')
467
468
  );

469
  // String handling: report status and errors.
470
  $form['strings'] = array('#type' => 'fieldset', '#title' => t('String handling'), '#collapsible' => TRUE, '#collapsed' => TRUE);
471
  $form['strings'] = array_merge($form['strings'], unicode_settings());
472

473
474
475
476
  // Cron: report status and errors.
  $form['cron'] = array('#type' => 'fieldset', '#title' => t('Cron jobs'), '#collapsible' => TRUE, '#collapsed' => TRUE);
  $form['cron'] = array_merge($form['cron'], system_cron_settings());

477
478
479
480
  // Check database setup if necessary
  if (function_exists('db_check_setup') && empty($_POST)) {
    db_check_setup();
  }
481
  return $form;
Dries's avatar
   
Dries committed
482
483
}

484
485
486
487
488
489
490
491
492
493
/**
 * Checks the existence of the directory specified in $form_element. This
 * function is called from the system_view_general form to check both the
 * 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 $form_element
 *   The form element containing the name of the directory to check.
 */
494
function system_check_directory($form_element) {
495
496
497
498
  file_check_directory($form_element['#value'], FILE_CREATE_DIRECTORY, $form_element['#parents'][0]);
  return $form_element;
}

499
500
501
502
503
504
505
506
507
508
509
510
511
/**
 * Return the cron status and errors for admin/settings.
 */
function system_cron_settings() {
  $cron_last = variable_get('cron_last', NULL);

  if (is_numeric($cron_last)) {
    $status = t('Cron is running. The last cron job ran %time ago.', array('%time' => format_interval(time() - $cron_last)));
  }
  else {
    $status = t('Cron has not run. It appears cron jobs have not been setup on your system. Please check the help pages for <a href="%url">configuring cron jobs</a>.', array('%url' => 'http://drupal.org/cron'));
  }

Dries's avatar
Dries committed
512
  $form['settings'] = array('#type' => 'item', '#value' => $status);
513
514
515
  return $form;
}

Dries's avatar
   
Dries committed
516
517
518
519
/**
 * 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
520
  // Extract current files from database.
521
  $result = db_query("SELECT name, type, status, throttle, schema_version FROM {system} WHERE type = '%s'", $type);
Dries's avatar
   
Dries committed
522
  while ($file = db_fetch_object($result)) {
523
    if (isset($files[$file->name]) && is_object($files[$file->name])) {
Dries's avatar
   
Dries committed
524
      foreach ($file as $key => $value) {
525
        if (!isset($files[$file->name]) || !isset($files[$file->name]->$key)) {
Dries's avatar
Dries committed
526
527
          $files[$file->name]->$key = $value;
        }
Dries's avatar
   
Dries committed
528
      }
529
    }
Dries's avatar
 
Dries committed
530
  }
Dries's avatar
   
Dries committed
531
}
Dries's avatar
 
Dries committed
532

Dries's avatar
   
Dries committed
533
534
535
/**
 * Collect data about all currently available themes
 */
Dries's avatar
Dries committed
536
537
538
539
function system_theme_data() {
  // Find themes
  $themes = system_listing('\.theme$', 'themes');

Dries's avatar
   
Dries committed
540
  // Find theme engines
Dries's avatar
Dries committed
541
542
543
544
545
546
547
548
549
  $engines = system_listing('\.engine$', 'themes/engines');

  // can't iterate over array itself as it uses a copy of the array items
  foreach (array_keys($themes) as $key) {
    drupal_get_filename('theme', $themes[$key]->name, $themes[$key]->filename);
    drupal_load('theme', $themes[$key]->name);
    $themes[$key]->owner = $themes[$key]->filename;
    $themes[$key]->prefix = $key;
  }
Dries's avatar
   
Dries committed
550

Dries's avatar
Dries committed
551
552
  // Remove all theme engines from the system table
  db_query("DELETE FROM {system} WHERE type = 'theme_engine'");
Dries's avatar
   
Dries committed
553
554

  foreach ($engines as $engine) {
Dries's avatar
   
Dries committed
555
    // Insert theme engine into system table
Dries's avatar
Dries committed
556
557
558
559
    drupal_get_filename('theme_engine', $engine->name, $engine->filename);
    drupal_load('theme_engine', $engine->name);
    db_query("INSERT INTO {system} (name, type, filename, status, throttle, bootstrap) VALUES ('%s', '%s', '%s', %d, %d, %d)", $engine->name, 'theme_engine', $engine->filename, 1, 0, 0);

Dries's avatar
   
Dries committed
560
    // Add templates to the site listing
Dries's avatar
Dries committed
561
    foreach (call_user_func($engine->name . '_templates') as $template) {
562
563
      // Do not double-insert templates with theme files in their directory,
      // but do register their engine data.
Dries's avatar
   
Dries committed
564
      if (array_key_exists($template->name, $themes)) {
565
566
567
568
569
570
571
572
573
574
575
        $themes[$template->name]->template = TRUE;
        $themes[$template->name]->owner = $engine->filename;
        $themes[$template->name]->prefix = $engine->name;
      }
      else {
        $template->template = TRUE;
        $template->name = basename(dirname($template->filename));
        $template->owner = $engine->filename;
        $template->prefix = $engine->name;

        $themes[$template->name] = $template;
Dries's avatar
   
Dries committed
576
      }
Dries's avatar
   
Dries committed
577
578
579
580
    }
  }

  // Find styles in each theme's directory.
Dries's avatar
Dries committed
581
582
  foreach ($themes as $theme) {
    foreach (file_scan_directory(dirname($theme->filename), 'style.css$') as $style) {
Dries's avatar
   
Dries committed
583
      $style->style = TRUE;
584
      $style->template = isset($theme->template) ? $theme->template : FALSE;
Dries's avatar
   
Dries committed
585
586
587
588
589
590
      $style->name = basename(dirname($style->filename));
      $style->owner = $theme->filename;
      $style->prefix = $theme->template ? $theme->prefix : $theme->name;
      // do not double-insert styles with theme files in their directory
      if (array_key_exists($style->name, $themes)) {
        continue;
Dries's avatar
   
Dries committed
591
      }
Dries's avatar
   
Dries committed
592
      $themes[$style->name] = $style;
Dries's avatar
   
Dries committed
593
    }
Dries's avatar
   
Dries committed
594
  }
Dries's avatar
   
Dries committed
595
596

  // Extract current files from database.
Dries's avatar
Dries committed
597
598
599
  system_get_files_database($themes, 'theme');

  db_query("DELETE FROM {system} WHERE type = 'theme'");
Dries's avatar
   
Dries committed
600

Dries's avatar
Dries committed
601
602
603
604
605
606
607
  foreach ($themes as $theme) {
    db_query("INSERT INTO {system} (name, description, type, filename, status, throttle, bootstrap) VALUES ('%s', '%s', '%s', '%s', %d, %d, %d)", $theme->name, $theme->owner, 'theme', $theme->filename, $theme->status, 0, 0);
  }

  return $themes;
}

608
609
610
/**
 * Get a list of available regions from a specified theme.
 *
611
 * @param $theme_key
612
613
614
615
 *   The name of a theme.
 * @return
 *   An array of regions in the form $region['name'] = 'description'.
 */
616
function system_region_list($theme_key) {
617
618
  static $list = array();

619
  if (!array_key_exists($theme_key, $list)) {
620
    $theme = db_fetch_object(db_query("SELECT * FROM {system} WHERE type = 'theme' AND name = '%s'", $theme_key));
621

622
    // Stylesheets can't have regions; use its theme.
623
    if (strpos($theme->filename, '.css')) {
624
      return system_region_list(basename(dirname($theme->description)));
625
    }
626
627

    // If this is a custom theme, load it in before moving on.
628
    if (file_exists($file = dirname($theme->filename) .'/' . $theme_key . '.theme')) {
629
      include_once "./$file";
630
631
    }

632
633
634
635
636
637
638
639
640
    $regions = array();

    // This theme has defined its own regions.
    if (function_exists($theme_key . '_regions')) {
      $regions = call_user_func($theme_key . '_regions');
    }
    // File is an engine; include its regions.
    else if (strpos($theme->description, '.engine')) {
      include_once './' . $theme->description;
641
      $theme_engine = basename($theme->description, '.engine');
642
      $regions = function_exists($theme_engine . '_regions') ? call_user_func($theme_engine . '_regions') : array();
643
644
    }

645
    $list[$theme_key] = $regions;
646
647
  }

648
  return $list[$theme_key];
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
}

/**
 * Get the name of the default region for a given theme.
 *
 * @param $theme
 *   The name of a theme.
 * @return
 *   A string that is the region name.
 */
function system_default_region($theme) {
  $regions = array_keys(system_region_list($theme));
  return $regions[0];
}

Dries's avatar
Dries committed
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
/**
 * Returns an array of files objects of the given type from both the
 * site-wide directory (i.e. modules/) and site-specific directory
 * (i.e. sites/somesite/modules/).  The returned array will be keyed
 * using the key specified (name, basename, filename).  Using name or
 * basename will cause site-specific files to shadow files in the
 * default directories.  That is, if a file with the same name appears
 * in both location, only the site-specific version will be included.
 *
 * @param $mask
 *   The regular expression of the files to find.
 * @param $directory
 *   The subdirectory name in which the files are found.  For example,
 *   'modules' will search in both modules/ and
 *   sites/somesite/modules/.
 * @param $key
 *   The key to be passed to file_scan_directory().
681
682
 * @param $min_depth
 *   Minimum depth of directories to return files from.
Dries's avatar
Dries committed
683
684
685
686
 *
 * @return
 *   An array of file objects of the specified type.
 */
687
function system_listing($mask, $directory, $key = 'name', $min_depth = 1) {
Dries's avatar
Dries committed
688
689
690
691
692
693
694
695
696
697
  $config = conf_init();
  $searchdir = array($directory);
  $files = array();

  if (file_exists("$config/$directory")) {
    $searchdir[] = "$config/$directory";
  }

  // Get current list of items
  foreach ($searchdir as $dir) {
698
    $files = array_merge($files, file_scan_directory($dir, $mask, array('.', '..', 'CVS'), 0, TRUE, $key, $min_depth));
Dries's avatar
Dries committed
699
700
701
  }

  return $files;
Dries's avatar
   
Dries committed
702
703
704
}

/**
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
 * Assign an initial, default set of blocks for a theme.
 *
 * This function is called the first time a new theme is enabled.  The new theme
 * gets a copy of the default theme's blocks, with the difference that if a
 * particular region isn't available in the new theme, the block is assigned
 * to the new theme's default region.
 *
 * @param $theme
 *   The name of a theme.
 */
function system_initialize_theme_blocks($theme) {
  // Initialize theme's blocks if none already registered.
  if (!(db_num_rows(db_query("SELECT module FROM {blocks} WHERE theme = '%s'", $theme)))) {
    $default_theme = variable_get('theme_default', 'bluemarine');
    $regions = system_region_list($theme);
    $result = db_query("SELECT * FROM {blocks} WHERE theme = '%s'", $default_theme);
    while($block = db_fetch_array($result)) {
      // If the region isn't supported by the theme, assign the block to the theme's default region.
      if (!array_key_exists($block['region'], $regions)) {
        $block['region'] = system_default_region($theme);
      }
      db_query("INSERT INTO {blocks} (module, delta, theme, status, weight, region, visibility, pages, custom, throttle) VALUES ('%s', '%s', '%s', %d, %d, '%s', %d, '%s', %d, %d)",
          $block['module'], $block['delta'], $theme, $block['status'], $block['weight'], $block['region'], $block['visibility'], $block['pages'], $block['custom'], $block['throttle']);
    }
  }
}

// Add the submit / reset buttons and run drupal_get_form()
function system_settings_form($form_id, $form) {
734
735
  $form['buttons']['submit'] = array('#type' => 'submit', '#value' => t('Save configuration') );
  $form['buttons']['reset'] = array('#type' => 'submit', '#value' => t('Reset to defaults') );
736

737
  if (!empty($_POST) && form_get_errors()) {
738
    drupal_set_message(t('The settings have not been saved because of the errors.'), 'error');
739
740
  }

741
742
743
  return drupal_get_form($form_id, $form, 'system_settings_form');
}

744
function system_theme_settings_submit($form_id, $values) {
Steven Wittens's avatar
Steven Wittens committed
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
  $op = isset($_POST['op']) ? $_POST['op'] : '';
  $key = $values['var'];

  if ($op == t('Reset to defaults')) {
    variable_del($key);
  }
  else {
    variable_set($key, $values);
  }
  if ($op == t('Reset to defaults')) {
    drupal_set_message(t('The configuration options have been reset to their default values.'));
  }
  else {
    drupal_set_message(t('The configuration options have been saved.'));
  }
}

762
763
764
/**
 * Execute the system_settings_form.
 *
765
766
767
 * If you want node type configure style handling of your checkboxes,
 * add an array_filter value to your form.
 *
768
 */
769
function system_settings_form_submit($form_id, $values) {
770
771
772
773
774
775
776
  $op = isset($_POST['op']) ? $_POST['op'] : '';

  foreach ($values as $key => $value) {
    if ($op == t('Reset to defaults')) {
      variable_del($key);
    }
    else {
777
      if (is_array($value) && isset($values['array_filter'])) {
778
779
780
781
782
783
784
        $value = array_keys(array_filter($value));
      }
      variable_set($key, $value);
    }
  }
  if ($op == t('Reset to defaults')) {
    drupal_set_message(t('The configuration options have been reset to their default values.'));
785
786
  }
  else {
787
788
    drupal_set_message(t('The configuration options have been saved.'));
  }
789
  menu_rebuild();
790
  drupal_goto($_GET['q']);
791
792
793
794
}

/**
 * Do the clean url validation, changing the form property if it doesn't work.
Dries's avatar
   
Dries committed
795
 */
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
function system_settings_validate($form_id, &$form) {
 #TODO .. fix here.
 if ($edit['clean_url'] && !variable_get('clean_url_ok', 0)) {
   drupal_set_message(t('It appears your host is not configured correctly for Clean URLs. Please check for <code>ModRewrite</code> support with your administrator.'), 'error');
   $edit['clean_url'] = 0;
 }

}




/**
 * Menu callback; displays a listing of all themes.
 */
function system_themes() {
Dries's avatar
Dries committed
812
  $themes = system_theme_data();
Dries's avatar
   
Dries committed
813
814
  ksort($themes);

Dries's avatar
   
Dries committed
815
  foreach ($themes as $info) {
Dries's avatar
Dries committed
816
    $info->screenshot = dirname($info->filename) . '/screenshot.png';
817
    $screenshot = file_exists($info->screenshot) ? theme('image', $info->screenshot, t('Screenshot for %theme theme', array('%theme' => $info->name)), '', array('class' => 'screenshot'), false) : t('no screenshot');
Dries's avatar
   
Dries committed
818

819
820
    $form[$info->name]['screenshot'] = array('#type' => 'markup', '#value' => $screenshot);
    $form[$info->name]['description'] = array('#type' => 'item', '#title' => $info->name,  '#value' => dirname($info->filename));
821
822
823
824
    $options[$info->name] = '';
    if ($info->status) {
      $status[] = $info->name;
    }
825
    if ($info->status && (function_exists($info->prefix . '_settings') || function_exists($info->prefix . '_features'))) {
826
      $form[$info->name]['operations'] = array('#type' => 'markup', '#value' => l(t('configure'), 'admin/themes/settings/' . $info->name) );
Dries's avatar
   
Dries committed
827
828
    }
    else {
829
830
831
832
833
      // Dummy element for form_render. Cleaner than adding a check in the theme function.
      $form[$info->name]['operations'] = array();
    }
  }

834
835
836
837
  $form['status'] = array('#type' => 'checkboxes', '#options' => $options, '#default_value' => $status);
  $form['theme_default'] = array('#type' => 'radios', '#options' => $options, '#default_value' => variable_get('theme_default', 'bluemarine'));
  $form['buttons']['submit'] = array('#type' => 'submit', '#value' => t('Save configuration') );
  $form['buttons']['reset'] = array('#type' => 'submit', '#value' => t('Reset to defaults') );
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852

  return drupal_get_form('system_themes', $form);
}

function theme_system_themes($form) {
  foreach (element_children($form) as $key) {
    $row = array();
    if (is_array($form[$key]['description'])) {
      $row[] = form_render($form[$key]['screenshot']);
      $row[] = form_render($form[$key]['description']);
      $row[] = array('data' => form_render($form['status'][$key]), 'align' => 'center');
      if ($form['theme_default']) {
        $row[] = array('data' => form_render($form['theme_default'][$key]), 'align' => 'center');
        $row[] = array('data' => form_render($form[$key]['operations']), 'align' => 'center');
      }
Dries's avatar
   
Dries committed
853
854
855
856
857
    }
    $rows[] = $row;
  }

  $header = array(t('Screenshot'), t('Name'), t('Enabled'), t('Default'), t('Operations'));
858
859
  $output = theme('table', $header, $rows);
  $output .= form_render($form);
Dries's avatar
   
Dries committed
860
861
862
  return $output;
}

863

864
function system_themes_submit($form_id, $values) {
865
866
867
868
869
870

  db_query("UPDATE {system} SET status = 0 WHERE type = 'theme'");

  if ($_POST['op'] == t('Save configuration')) {
    if (is_array($values['status'])) {
      foreach ($values['status'] as $key => $choice) {
871
872
        // Always enable the default theme, despite its status checkbox being checked:
        if ($choice || $values['theme_default'] == $key) {
873
874
875
876
          // If theme status is being set to 1 from 0, initialize block data for this theme if necessary.
          if (db_num_rows(db_query("SELECT status FROM {system} WHERE type = 'theme' AND name = '%s' AND status = 0", $key))) {
            system_initialize_theme_blocks($key);
          }
877
878
879
880
          db_query("UPDATE {system} SET status = 1 WHERE type = 'theme' and name = '%s'", $key);
        }
      }
    }
881
    variable_set('theme_default', $values['theme_default']);
882
883
884
  }
  else {
    variable_del('theme_default');
885
    db_query("UPDATE {system} SET status = 1 WHERE type = 'theme' AND name ='bluemarine'");
886
887
  }

888
  menu_rebuild();
889
890
891
892
  drupal_set_message(t('The configuration options have been saved.'));
  drupal_goto('admin/themes');
}

Dries's avatar
   
Dries committed
893
/**
894
 * Menu callback; displays a listing of all modules.
Dries's avatar
   
Dries committed
895
 */
896
function system_modules() {
Dries's avatar
   
Dries committed
897
  // Get current list of modules
898
  $files = system_listing('\.module$', 'modules', 'name', 0);
Dries's avatar
   
Dries committed
899
900
901
902
903
904

  // Extract current files from database.
  system_get_files_database($files, 'module');

  ksort($files);

Dries's avatar
   
Dries committed
905
  foreach ($files as $filename => $file) {
Dries's avatar
Dries committed
906
907
908
909
    drupal_get_filename('module', $file->name, $file->filename);
    drupal_load('module', $file->name);

    $file->description = module_invoke($file->name, 'help', 'admin/modules#description');
Dries's avatar
   
Dries committed
910

911
912
    $form['name'][$file->name] = array('#value' => $file->name);
    $form['description'][$file->name] = array('#value' => $file->description);
913
914
915
916
917
918
919
920
    $options[$file->name] = '';
    if ($file->status) {
      $status[] = $file->name;
    }
    if ($file->throttle) {
      $throttle[] = $file->name;
    }

Dries's avatar
   
Dries committed
921
922
923
924
925
926
    // log the critical hooks implemented by this module
    $bootstrap = 0;
    foreach (bootstrap_hooks() as $hook) {
      if (module_hook($file->name, $hook)) {
        $bootstrap = 1;
        break;
Dries's avatar
   
Dries committed
927
      }
928
929
    }

Dries's avatar
   
Dries committed
930
    // Update the contents of the system table:
931
    if (isset($file->status)) {
932
      db_query("UPDATE {system} SET description = '%s', name = '%s', bootstrap = %d WHERE filename = '%s'", $file->description, $file->name, $bootstrap, $file->filename);
933
934
935
936
937
    }
    else {
      // This is a new module.
      db_query("INSERT INTO {system} (name, description, type, filename, status, throttle, bootstrap) VALUES ('%s', '%s', '%s', '%s', %d, %d, %d)", $file->name, $file->description, 'module', $file->filename, $file->status, $file->throttle, $bootstrap);
    }
938
  }
Dries's avatar
   
Dries committed
939

Dries's avatar
   
Dries committed
940

941
942
  // Handle status checkboxes, including overriding the generated
  // checkboxes for required modules.
943
  $form['status'] = array('#type' => 'checkboxes', '#default_value' => $status, '#options' => $options);
944
945
  $required = array('block', 'filter', 'system', 'user', 'watchdog');
  foreach ($required as $require) {
946
    $form['status'][$require] = array('#type' => 'hidden', '#value' => 1, '#suffix' => t('required'));
947
  }
Dries's avatar
Dries committed
948

949
950
951
952
  /**
   * Handle throttle checkboxes, including overriding the generated checkboxes for required modules.
   */
  if (module_exist('throttle')) {
953
    $form['throttle'] = array('#type' => 'checkboxes', '#default_value' => $throttle, '#options' => $options);
954
955
    $throttle_required = array_merge($required, array('throttle'));
    foreach ($throttle_required as $require) {
956
      $form['throttle'][$require] = array('#type' => 'hidden', '#value' => 1, '#suffix' => t('required'));
957
    }
958
  }
959