system.module 31.9 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
/**
 * Implementation of hook_help().
 */
function system_help($section) {
Dries's avatar
 
Dries committed
8
  global $base_url;
Dries's avatar
 
Dries committed
9

10
  switch ($section) {
11
    case 'admin/settings':
Dries's avatar
 
Dries committed
12 13
      return t('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.');
    case 'admin/themes':
Dries's avatar
 
Dries committed
14 15 16 17 18 19
      return 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.');
    case 'admin/themes/settings':
      return 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.');
    case 'admin/themes/settings/'. arg(3):
      $theme = array_pop(explode('.', arg(3), 2));
      return 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/themes/settings')));
Dries's avatar
 
Dries committed
20
    case 'admin/modules':
21
      return t("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 checking throttle.  The auto-throttle functionality must be enabled on the <a href=\"%throttle\">throttle configuration page</a> after having enabled the throttle module.", array('%permissions' => url('admin/user/configure/permission'), '%throttle' => url('admin/settings/throttle')));
Dries's avatar
 
Dries committed
22
    case 'admin/help#system':
Dries's avatar
 
Dries committed
23
      return t("
Dries's avatar
 
Dries committed
24 25 26
      <p>Drupal comes with system-wide defaults but the setting-module provides control over many Drupal preferences, behaviours including visual and operational settings.</p>
      <h3><a id=\"cron\">Cron</a></h3>
      <p>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).   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>
27
      <p>Whenever %cron-link is accessed, cron will run: it calls the _cron hook in each module allowing the module to run tasks if they have not been executed in the last <em>n</em> seconds, where n is the period of that task.  When all the tasks are finished, cron is done.</p>
Dries's avatar
 
Dries committed
28 29 30 31
      <p>The recommended way to set up your cron system is to set up a Unix/Linux crontab entry (see \"man crontab\") that frequently visits %cron-link.  Note that cron does not guarantee the commands will be executed at the specified interval.  However, Drupal will try its best to run the tasks as close to the specified intervals as possible.  The more you visit cron.php, the more accurate cron will be.</p>
      <p>If your hosting company does not allow you to set up crontab entries, you can always ask someone else to set up an entry for you. After all, virtually any Unix/Linux machine with access to the internet can set up a crontab entry to frequently visit %cron-link.</p>
      <p>For the Unix/Linux crontab itself, use a browser like <a href=\"%lynx\">lynx</a> or <a href=\"%wget\">wget</a> but make sure the process terminates: either use <code>/usr/bin/lynx -source %base_url/cron.php</code> or <code>/usr/bin/wget -o /dev/null -O /dev/null %cron-link</code>.  Take a look at the example scripts in the <code>scripts</code>-directory. Make sure to adjust them to fit your needs.  A good crontab line to run the cron script once every hour would be:
      <pre>     00 * * * * /home/www/drupal/scripts/cron-lynx.sh</pre>
32
      Note that it is essential to access <code>cron.php</code> using a browser on the web site's domain; do not run it using command line PHP and avoid using <code>localhost</code> or <code>127.0.0.1</code> or some of the environment variables will not be set correctly and features may not work as expected.</p>
Dries's avatar
 
Dries committed
33
      <h3><a id=\"cache\">Cache</a></h3>
Dries's avatar
 
Dries committed
34
      <p>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 cached pages compressed.</p>", array('%base_url' => $base_url, '%cron-link' => "<a href=\"$base_url/cron.php\">$base_url/cron.php</a>", '%lynx' => 'http://lynx.browser.org', '%wget' => 'http://www.gnu.org/software/wget/wget.html' ));
Dries's avatar
 
Dries committed
35 36
    case 'admin/modules#description':
      return t('Configuration system that lets administrators modify the workings of the site.');
37
  }
Dries's avatar
 
Dries committed
38 39
}

Dries's avatar
 
Dries committed
40 41 42
/**
 * Menu callback; presents system-specific help text from admin/help.
 */
Dries's avatar
 
Dries committed
43
function system_help_page() {
Dries's avatar
 
Dries committed
44
  print theme('page', system_help('admin/help#system'));
Dries's avatar
 
Dries committed
45 46
}

Dries's avatar
 
Dries committed
47 48 49
/**
 * Implementation of hook_perm().
 */
Dries's avatar
 
Dries committed
50
function system_perm() {
51
  return array('administer site configuration', 'access administration pages', 'bypass input data check');
Dries's avatar
 
Dries committed
52 53
}

Dries's avatar
 
Dries committed
54
/**
Dries's avatar
 
Dries committed
55
 * Implementation of hook_menu().
Dries's avatar
 
Dries committed
56
 */
Dries's avatar
 
Dries committed
57 58 59 60 61 62 63 64
function system_menu() {
  $items = array();
  $items[] = array('path' => 'system/files', 'title' => t('file download'),
    'callback' => 'file_download',
    'access' => TRUE,
    'type' => MENU_CALLBACK);

  $access = user_access('administer site configuration');
Dries's avatar
 
Dries committed
65

66
  // Themes:
Dries's avatar
 
Dries committed
67 68
  $items[] = array('path' => 'admin/themes', 'title' => t('themes'),
    'callback' => 'system_themes', 'access' => $access);
Dries's avatar
 
Dries committed
69 70 71 72 73 74 75 76 77 78 79 80 81 82

  $items[] = array('path' => 'admin/themes/select', 'title' => t('select'),
    '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);

83
  foreach (list_themes() as $theme) {
Dries's avatar
 
Dries committed
84 85 86 87
     $path = str_replace('/', '.', $theme->name);
     $items[] = array('path' => 'admin/themes/settings/'. $path, 'title' => basename($theme->name),
     'callback' => 'system_theme_settings', 'access' => $access,
     'type' => MENU_LOCAL_TASK);
Dries's avatar
 
Dries committed
88
  }
Dries's avatar
 
Dries committed
89

Dries's avatar
 
Dries committed
90 91 92 93 94 95
  // 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
96
    }
Dries's avatar
 
Dries committed
97
  }
Dries's avatar
 
Dries committed
98 99 100 101
  $items[] = array('path' => 'admin/modules', 'title' => t('modules'),
    'callback' => 'system_modules', 'access' => $access);

  return $items;
Dries's avatar
 
Dries committed
102 103
}

Dries's avatar
 
Dries committed
104 105 106 107 108
/**
 * Implementation of hook_user().
 *
 * Allows users to individually set their theme and time zone.
 */
109 110
function system_user($type, $edit, &$user, $category = NULL) {
  if ($type == 'form' && $category == 'account') {
Dries's avatar
 
Dries committed
111
    if (count($themes = list_themes()) > 1) {
Dries's avatar
 
Dries committed
112
      $rows = array();
Dries's avatar
 
Dries committed
113
      foreach ($themes as $key => $value) {
Dries's avatar
 
Dries committed
114 115 116 117
        $row = array();

        // Screenshot column.
        $screenshot = dirname($value->filename) .'/screenshot.png';
118
        $row[] = file_exists($screenshot) ? theme('image', $screenshot, t('Screenshot for %theme theme', array('%theme' => $value->name)), '', 'class="screenshot"', false) : t('no screenshot');
Dries's avatar
 
Dries committed
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135

        // Information field.
        $field = '<strong>'. basename($value->name) .'</strong>';
        $row[] = $field;

        // 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'] = '';
          }
        }

        // Selected column.
        $row[] = array('data' => form_radio('', 'theme', $key, ($edit['theme'] == $key) ? 1 : 0), 'align' => 'center');

        $rows[] = $row;
Dries's avatar
 
Dries committed
136
      }
Dries's avatar
 
Dries committed
137 138
      $header = array(t('Screenshot'), t('Name'), t('Selected'));
      $data[] = array('title' => t('Theme settings'), 'data' => form_item('', theme('table', $header, $rows), t('Selecting a different theme will change the look and feel of the site.')), 'weight' => 2);
Dries's avatar
 
Dries committed
139
    }
140

141
    if (variable_get('configurable_timezones', 1)) {
Steven Wittens's avatar
Steven Wittens committed
142
      $zones = _system_zonelist();
Steven Wittens's avatar
Steven Wittens committed
143
      $data[] = array('title' => t('Locale settings'), 'data' => form_select(t('Time zone'), 'timezone', strlen($edit['timezone']) ? $edit['timezone'] : variable_get('date_default_timezone', 0), $zones, t('Select your current local time. Dates and times throughout this site will be displayed using this time zone.')), 'weight' => 2);
Dries's avatar
 
Dries committed
144
    }
145
    return $data;
Dries's avatar
 
Dries committed
146
  }
Dries's avatar
 
Dries committed
147 148
}

Steven Wittens's avatar
Steven Wittens committed
149 150 151 152 153 154 155 156 157 158 159
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
160
function system_view_general() {
Dries's avatar
 
Dries committed
161
  global $conf;
Dries's avatar
 
Dries committed
162

Dries's avatar
 
Dries committed
163
  // general settings:
Dries's avatar
 
Dries committed
164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
  $group  = form_textfield(t('Name'), 'site_name', variable_get('site_name', 'drupal'), 70, 70, t('The name of this web site.'));
  $group .= form_textfield(t('E-mail address'), 'site_mail', variable_get('site_mail', ini_get('sendmail_from')), 70, 128, t('A valid e-mail address for this website, used by the auto-mailer during registration, new password requests, notifications, etc.'));
  $group .= form_textfield(t('Slogan'), 'site_slogan', variable_get('site_slogan', ''), 70, 128, t('The slogan of this website. Some themes display a slogan when available.'));
  $group .= form_textarea(t('Mission'), 'site_mission', variable_get('site_mission', ''), 70, 5, t('Your site\'s mission statement or focus.'));
  $group .= form_textarea(t('Footer message'), 'site_footer', variable_get('site_footer', ''), 70, 5, t('This text will be displayed at the bottom of each page.  Useful for adding a copyright notice to your pages.'));
  $group .= form_textfield(t('Anonymous user'), 'anonymous', variable_get('anonymous', 'Anonymous'), 70, 70, t('The name used to indicate anonymous users.'));
  $group .= form_textfield(t('Default front page'), 'site_frontpage', variable_get('site_frontpage', 'node'), 70, 70, 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".'));
  $group .= form_textfield(t('Default 403 (access denied) page'), 'site_403', variable_get('site_403', ''), 70, 70, 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.'));
  $group .= form_textfield(t('Default 404 (not found) page'), 'site_404', variable_get('site_404', ''), 70, 70, 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.'));
  $group .= form_radios(t('Clean URLs'), 'clean_url', variable_get('clean_url', 0), array(t('Disabled'), t('Enabled')), t('Enable or disable clean URLs.  If enabled, you\'ll need <code>ModRewrite</code> support.  See also the <code>.htaccess</code> file in Drupal\'s top-level directory.'));

  // watchdog setting:
  $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200), 'format_interval');
  $period['1000000000'] = t('Never');
  $group .= form_select(t('Discard log entries older than'), 'watchdog_clear', variable_get('watchdog_clear', 604800), $period, t('The time watchdog entries should be kept.  Older entries will be automatically discarded.  Requires crontab.'));

  $output = form_group(t('General settings'), $group);
Dries's avatar
 
Dries committed
181

Dries's avatar
 
Dries committed
182
  // caching:
Dries's avatar
 
Dries committed
183
  $group  = form_radios(t('Cache support'), 'cache', variable_get('cache', 0), array(t('Disabled'), t('Enabled')), t('Enable or disable the caching of rendered pages.  When caching is enabled, Drupal will flush the cache when required to make sure updates take effect immediately.  Check the <a href="%documentation">cache documentation</a> for information on Drupal\'s cache system.', array('%documentation' => url('admin/help', NULL, NULL, 'cache'))));
Dries's avatar
 
Dries committed
184

Dries's avatar
 
Dries committed
185
  $output .= form_group(t('Cache settings'), $group);
Dries's avatar
 
Dries committed
186

Dries's avatar
 
Dries committed
187
  // file system:
Dries's avatar
 
Dries committed
188
  $directory_path = variable_get('file_directory_path', 'files');
Dries's avatar
 
Dries committed
189
  file_check_directory($directory_path, FILE_CREATE_DIRECTORY, 'file_directory_path');
Dries's avatar
 
Dries committed
190

Dries's avatar
 
Dries committed
191 192
  $directory_temp = variable_get('file_directory_temp', 'temp');
  file_check_directory(file_create_path($directory_temp), FILE_CREATE_DIRECTORY, 'file_directory_temp');
Dries's avatar
 
Dries committed
193 194

  $group = form_textfield(t('File system path'), 'file_directory_path', $directory_path, 70, 255, 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.'));
Dries's avatar
 
Dries committed
195
  $group .= form_textfield(t('Temporary directory'), 'file_directory_temp', $directory_temp, 70, 255, t('Location where uploaded files will be placed for preview purposes. This directory should be relative to the file system path.'));
Dries's avatar
 
Dries committed
196
  $group .= form_radios(t('Download method'), 'file_downloads', variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC), array(FILE_DOWNLOADS_PUBLIC => t('Public - files are available using http directly.'), FILE_DOWNLOADS_PRIVATE => t('Private - files are be transferred by Drupal.')), t('This setting can be changed at any time, however, all download URLs will change and there may be unexpected problems so it is not recommended.'));
Dries's avatar
 
Dries committed
197
  $output .= form_group(t('File system settings'), $group);
Dries's avatar
 
Dries committed
198

Dries's avatar
 
Dries committed
199
  // date settings:
Steven Wittens's avatar
Steven Wittens committed
200
  $zones = _system_zonelist();
201

Dries's avatar
 
Dries committed
202
  // date settings: possible date formats
Dries's avatar
 
Dries committed
203 204 205 206 207 208 209 210 211 212
  $dateshort = array('m/d/Y - H:i', 'd/m/Y - H:i', 'Y/m/d - H:i',
           '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');
  $datemedium = array('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',
          'D, m/d/Y - g:ia', 'D, d/m/Y - g:ia', 'D, Y/m/d - g:ia',
          'F j, Y - g:ia', 'j F, Y - g:ia', 'Y, F j - g:ia');
  $datelong = array('l, F j, Y - H:i', 'l, j F, Y - H:i', 'l, Y,  F j - H:i',
        'l, F j, Y - g:ia', 'l, j F, Y - g:ia', 'l, Y,  F j - g:ia');
Dries's avatar
 
Dries committed
213 214 215

  // date settings: construct choices for user
  foreach ($dateshort as $f) {
Dries's avatar
 
Dries committed
216
    $dateshortchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
217 218
  }
  foreach ($datemedium as $f) {
Dries's avatar
 
Dries committed
219
    $datemediumchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
220 221
  }
  foreach ($datelong as $f) {
Dries's avatar
 
Dries committed
222
    $datelongchoices[$f] = format_date(time(), 'custom', $f);
Dries's avatar
 
Dries committed
223 224
  }

Dries's avatar
 
Dries committed
225 226 227 228 229
  $group  = form_select(t('Default time zone'), 'date_default_timezone', variable_get('date_default_timezone', 0), $zones, t('Select the default site time zone.'));
  $group .= form_radios(t('Configurable time zones'), 'configurable_timezones', variable_get('configurable_timezones', 1), array(t('Disabled'), t('Enabled')), t('Enable or disable user-configurable time zones.  When enabled, users can set their own time zone and dates will be updated accordingly.'));
  $group .= form_select(t('Short date format'), 'date_format_short', variable_get('date_format_short', $dateshort[0]), $dateshortchoices, t('The short format of date display.'));
  $group .= form_select(t('Medium date format'), 'date_format_medium', variable_get('date_format_medium', $datemedium[0]), $datemediumchoices, t('The medium sized date display.'));
  $group .= form_select(t('Long date format'), 'date_format_long', variable_get('date_format_long', $datelong[0]), $datelongchoices, t('Longer date format used for detailed display.'));
Dries's avatar
 
Dries committed
230

Dries's avatar
 
Dries committed
231
  $output .= form_group(t('Date settings'), $group);
Dries's avatar
 
Dries committed
232

Dries's avatar
 
Dries committed
233 234 235
  return $output;
}

Dries's avatar
 
Dries committed
236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
/**
 * Inventory theme engines and insert entries for them into the system table
 */
function system_theme_engine_inventory($directory) {
  $engines = array();

  // Remove all theme engines from the system table
  db_query('DELETE FROM {system} WHERE type = \'%s\'', 'theme_engine');

  // Find theme engines in the directory and insert into database
  $files = file_scan_directory($directory. '/engines', '\.engine$');

  foreach ($files as $filename => $file) {
    module_set_filename($file->name, $filename);
    module_load($file->name);

    $info->name = $file->name;
    $info->filename = $file->filename;
    $engines[$info->name] = $info;

    db_query('INSERT INTO {system} (name, type, filename, status, throttle, bootstrap) VALUES (\'%s\', \'%s\', \'%s\', %d, %d, %d)', $info->name, 'theme_engine', $filename, 1, 0, 0);
257
  }
Dries's avatar
 
Dries committed
258 259
  return $engines;
}
Dries's avatar
 
Dries committed
260

Dries's avatar
 
Dries committed
261 262 263 264 265
/**
 * Retrieves an array of a particular type of files (specified by $type) in a particular $directory
 * and their current status in the system table.
 */
function system_get_files($search, $type, $directory) {
Dries's avatar
 
Dries committed
266
  // Find files in the directory.
Dries's avatar
 
Dries committed
267
  $files = file_scan_directory($directory, $search);
268

Dries's avatar
 
Dries committed
269 270 271 272 273 274 275
  return $files;
}

/**
 * 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
276
  // Extract current files from database.
Dries's avatar
 
Dries committed
277
  $result = db_query('SELECT filename, type, status, throttle FROM {system} WHERE type = \'%s\'', $type);
Dries's avatar
 
Dries committed
278 279 280 281 282
  while ($file = db_fetch_object($result)) {
    if (is_object($files[$file->filename])) {
      foreach ($file as $key => $value) {
        $files[$file->filename]->$key = $value;
      }
283
    }
Dries's avatar
 
Dries committed
284
  }
Dries's avatar
 
Dries committed
285
}
Dries's avatar
 
Dries committed
286

Dries's avatar
 
Dries committed
287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322
/**
 * Obtains information about each theme in the $files array
 * Also updates the system table
 */
function system_obtain_theme_info($files, $directory) {
  foreach ($files as $filename => $file) {
    if ($file->theme) {
      // file is a style
      $info->description = $file->theme;
      $info->style = TRUE;
    }

    if (strpos($filename, '.theme')) {
      // file is a theme
      module_set_filename($file->name, $filename);
      module_load($file->name);
      $info->description = '';
      $info->prefix = basename($filename, '.theme');
    }
    elseif ($info->style && !$file->engine) {
      $info->prefix = $info->description;
    }
    else {
      // file is a template
      $info->description = $info->style ? $info->description : $file->engine;
      $info->template = TRUE;
      $info->prefix = basename($file->engine, '.engine');
    }

    $info->filename = $filename;
    $info->path = pathinfo($info->filename);
    $info->name = str_replace(array($directory .'/'), '', $info->path['dirname']);
    $info->shortname = basename($info->name);
    $info->screenshot = dirname($info->filename) .'/screenshot.png';

    $info->status = $file->status;
323

Dries's avatar
 
Dries committed
324
    $themes[$info->name] = $info;
325

Dries's avatar
 
Dries committed
326 327 328
    // Update the contents of the system table:
    db_query('DELETE FROM {system} WHERE filename = \'%s\' AND type = \'%s\'', $info->filename, 'theme');
    db_query('INSERT INTO {system} (name, description, type, filename, status, throttle, bootstrap) VALUES (\'%s\', \'%s\', \'%s\', \'%s\', %d, %d, %d)', $info->name, $info->description, 'theme', $info->filename, $info->status, 0, 0);
Dries's avatar
 
Dries committed
329
  }
Dries's avatar
 
Dries committed
330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370
  return $themes;
}

/**
 * Collect data about all currently available themes
 */
function system_theme_data($directory) {
  // Find theme engines
  $engines = system_theme_engine_inventory($directory);

  // Get current list of themes and their present status in the system table.
  $files = system_get_files('\.theme$', 'theme', $directory);

  // Add templates to the site listing
  foreach ($engines as $engine) {
    foreach (call_user_func($engine->name .'_templates', $directory) as $template) {
      $template_files[$template->filename] = $template;
      $template_files[$template->filename]->engine = $engine->filename;
      foreach ($files as $file) {
        // do not double-insert templates with theme files in their directory
        if (dirname($template->filename) == dirname($file->filename)) {
          unset($template_files[$template->filename]);
        }
      }
    }
  }
  $files = array_merge($files, $template_files);

  // Find styles in each theme's directory.
  foreach ($files as $file) {
    foreach (system_get_files("style.css$", 'theme', dirname($file->filename)) as $style) {
      // do not double-insert themes with css files in their directory
      if (dirname($style->filename) != dirname($file->filename)) {
        $style_files[$style->filename] = $style;
        $path = pathinfo($file->filename);
        $style_files[$style->filename]->theme = str_replace(array($directory .'/'), '', $path['dirname']);
        if ($file->engine) {
          $style_files[$style->filename]->engine = $file->engine;
        }
      }
    }
Dries's avatar
 
Dries committed
371
  }
Dries's avatar
 
Dries committed
372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393
  $files = array_merge($files, $style_files);

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

  // Build an array of information about each theme for use in displaying the selection table.
  return system_obtain_theme_info($files, $directory);
}

/**
 * Generate a list of all the available theme/style combinations.
 */
function system_theme_listing() {
  $directory = 'themes';

  $themes = system_theme_data($directory);
  ksort($themes);

  foreach ($themes as $key => $info) {
    $row = array();

    // Screenshot column.
394
    $row[] = file_exists($info->screenshot) ? theme('image', $info->screenshot, t('Screenshot for %theme theme', array('%theme' => $info->shortname)), '', 'class="screenshot"', false) : t('no screenshot');
Dries's avatar
 
Dries committed
395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436

    // Information field.
    $field = '<strong>'. $info->shortname .'</strong>';
    $field .= '<br /><em>themes/'. $key .'</em>';
    $row[] = $field;

    // enabled, default, and operations columns
    $row[] = array('data' => form_checkbox('', 'status]['. $info->filename, 1, $info->status), 'align' => 'center');
    $row[] = array('data' => form_radio('', 'theme_default', $info->filename, (variable_get('theme_default', 'bluemarine') == $key) ? 1 : 0), 'align' => 'center');
    if (function_exists($info->prefix .'_settings') || function_exists($info->prefix .'_features')) {
      $row[] = array('data' => l(t('configure'), 'admin/themes/settings/'. str_replace('/', '.', $key)), 'align' => 'center');
    }
    else {
      $row[] = '';
    }
    $rows[] = $row;
  }

  $header = array(t('Screenshot'), t('Name'), t('Enabled'), t('Default'), t('Operations'));
  $output = form_hidden('type', 'theme');
  $output .= theme('table', $header, $rows);
  return $output;
}

/**
 * Generate a list of all the available modules, as well as update the system list.
 */
function system_module_listing() {
  $directory = 'modules';

  // Get current list of modules
  $files = system_get_files('\.module$', 'module', $directory);

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

  ksort($files);

  $required = array('modules/admin.module', 'modules/block.module', 'modules/filter.module', 'modules/system.module', 'modules/user.module', 'modules/watchdog.module');
  // the throttle mechanism requires additional modules always be enabled
  $throttle_required = array_merge($required, array('modules/statistics.module', 'modules/throttle.module'));

Dries's avatar
 
Dries committed
437
  $header = array(t('Name'), t('Description'), t('Enabled'), t('Throttle'));
Dries's avatar
 
Dries committed
438 439

  foreach ($files as $filename => $file) {
Dries's avatar
 
Dries committed
440 441 442
    module_set_filename($file->name, $filename);
    module_load($file->name);

Dries's avatar
 
Dries committed
443 444 445 446 447 448 449 450
    $info->name = module_invoke($file->name, 'help', 'admin/modules#name') ? module_invoke($file->name, 'help', 'admin/modules#name') : $file->name;
    $info->description = module_invoke($file->name, 'help', 'admin/modules#description');
    // 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
451
      }
452 453
    }

Dries's avatar
 
Dries committed
454
    // Update the contents of the system table:
Dries's avatar
 
Dries committed
455 456
    db_query('DELETE FROM {system} WHERE filename = \'%s\' AND type = \'%s\'', $filename, 'module');
    db_query('INSERT INTO {system} (name, description, type, filename, status, throttle, bootstrap) VALUES (\'%s\', \'%s\', \'%s\', \'%s\', %d, %d, %d)', $info->name, $info->description, 'module', $filename, $file->status, $file->throttle, $bootstrap);
457

Dries's avatar
 
Dries committed
458 459
    $row = array($info->name, $info->description, array('data' => (in_array($filename, $required) ? form_hidden('status]['. $filename, 1) . t('required') : form_checkbox('', 'status]['. $filename, 1, $file->status)), 'align' => 'center'));
    $row[] = array('data' => (in_array($filename, $throttle_required) ? form_hidden('throttle]['. $filename, 0) . t('required') : form_checkbox(NULL, 'throttle]['. $filename, 1, $file->throttle, NULL, module_exist('throttle') ? NULL : array('disabled' => 'disabled'))), 'align' => 'center');
Dries's avatar
 
Dries committed
460
    $rows[] = $row;
461
  }
Dries's avatar
 
Dries committed
462

Dries's avatar
 
Dries committed
463
  $output  = theme('table', $header, $rows);
Dries's avatar
 
Dries committed
464
  $output .= form_hidden('type', 'module');
Dries's avatar
 
Dries committed
465

Dries's avatar
 
Dries committed
466
  return $output;
Dries's avatar
 
Dries committed
467
}
Dries's avatar
 
Dries committed
468

469
function system_listing_save($edit = array()) {
Dries's avatar
 
Dries committed
470 471
  $op = $_POST['op'];
  $edit = $_POST['edit'];
Dries's avatar
 
Dries committed
472

Dries's avatar
 
Dries committed
473 474 475
  if ($op == t('Save configuration')) {
    db_query("UPDATE {system} SET status = 0 WHERE type = '%s'", $edit['type']);
    foreach ($edit['status'] as $filename => $status) {
Dries's avatar
 
Dries committed
476 477 478 479 480
      // Make certain that the default theme is enabled to avoid user error
      if (($edit['type'] == 'theme') && ($edit['theme_default'] == $filename)) {
        $status = 1;
      }

Dries's avatar
 
Dries committed
481
      db_query("UPDATE {system} SET status = %d, throttle = %d WHERE filename = '%s'", $status, $edit['throttle'][$filename], $filename);
Dries's avatar
 
Dries committed
482
    }
Dries's avatar
 
Dries committed
483
    if ($edit['type'] == 'theme') {
Dries's avatar
 
Dries committed
484 485 486
      $path = pathinfo($edit['theme_default']);
      $name = str_replace(array('themes/'), '', $path['dirname']);
      variable_set('theme_default', $name);
487 488 489 490
    }

    cache_clear_all();

Dries's avatar
 
Dries committed
491
    drupal_set_message(t('The configuration options have been saved.'));
Steven Wittens's avatar
Steven Wittens committed
492
    drupal_goto($_GET['q']);
493 494 495 496
  }
}

function system_settings_form($form) {
Dries's avatar
 
Dries committed
497 498
  $form .= form_submit(t('Save configuration'));
  $form .= form_submit(t('Reset to defaults'));
499 500 501 502 503

  return form($form);
}

function system_settings_save() {
Dries's avatar
 
Dries committed
504 505
  $op = $_POST['op'];
  $edit = $_POST['edit'];
Dries's avatar
 
Dries committed
506

Dries's avatar
 
Dries committed
507
  if ($op == t('Reset to defaults')) {
508 509 510
    foreach ($edit as $name => $value) {
      variable_del($name);
    }
Dries's avatar
 
Dries committed
511
    drupal_set_message(t('The configuration options have been reset to their default values.'));
512
  }
Dries's avatar
 
Dries committed
513
  if ($op == t('Save configuration')) {
514 515
    foreach ($edit as $name => $value) {
      variable_set($name, $value);
Dries's avatar
 
Dries committed
516
    }
Dries's avatar
 
Dries committed
517
    drupal_set_message(t('The configuration options have been saved.'));
518 519 520 521
  }
  else {
    return;
  }
Dries's avatar
 
Dries committed
522

523
  cache_clear_all();
Steven Wittens's avatar
Steven Wittens committed
524
  drupal_goto($_GET['q']);
525 526
}

Dries's avatar
 
Dries committed
527 528 529 530 531
/**
 * Menu callback; displays a listing of all themes.
 */
function system_themes() {
  system_listing_save();
Dries's avatar
 
Dries committed
532
  $form = system_theme_listing();
Dries's avatar
 
Dries committed
533 534 535 536 537 538 539 540 541
  $form .= form_submit(t('Save configuration'));
  print theme('page', form($form));
}

/**
 * Menu callback; displays a listing of all modules.
 */
function system_modules() {
  system_listing_save();
Dries's avatar
 
Dries committed
542
  $form = system_module_listing();
Dries's avatar
 
Dries committed
543 544 545 546
  $form .= form_submit(t('Save configuration'));
  print theme('page', form($form));
}

547
/**
Dries's avatar
 
Dries committed
548
 * Menu callback; displays a module's settings page.
549
 */
Dries's avatar
 
Dries committed
550
function system_site_settings($module = NULL) {
551 552
  system_settings_save();

Dries's avatar
 
Dries committed
553 554 555 556 557
  if ($module) {
    $form = module_invoke($module, 'settings');
  }
  else {
    $form = system_view_general();
558 559 560 561 562
  }

  print theme('page', system_settings_form($form));
}

Dries's avatar
 
Dries committed
563
/**
Dries's avatar
 
Dries committed
564
 * Menu callback; display theme configuration for entire site and individual themes.
Dries's avatar
 
Dries committed
565
 */
Dries's avatar
 
Dries committed
566
function system_theme_settings() {
Dries's avatar
 
Dries committed
567
  system_settings_save();
Dries's avatar
 
Dries committed
568 569 570
  // Default settings are defined in _theme_settings() in includes/theme.inc
  $key = str_replace('.', '/', arg(3));
  if ($key) {
571
    $settings = theme_get_settings($key);
Dries's avatar
 
Dries committed
572 573 574
    $var = str_replace('/', '_', 'theme_'. $key .'_settings');
    $themes = system_theme_data('themes');
    $features = function_exists($themes[$key]->prefix .'_features') ? call_user_func($themes[$key]->prefix .'_features') : array();
Dries's avatar
 
Dries committed
575 576
  }
  else {
577
    $settings = theme_get_settings('');
Dries's avatar
 
Dries committed
578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
    $var = 'theme_settings';
  }

  $form = '';

  // Logo settings
  if ((!$key) || in_array('logo', $features)) {
    $group = form_checkbox(t('Use the default logo'), "$var][default_logo", 1, $settings['default_logo'], t('Check here if you want the theme to use the logo supplied with it.'));
    $group .= form_textfield(t('Path to custom logo'), "$var][logo_path", $settings['logo_path'], 50, 60, t('The path to the file you would like to use as your logo file instead of the default logo.'));
    $form = form_group(t('Logo image settings'), $group);
  }

  // System wide only settings.
  if (!$key) {
    // Menu settings
    $group = form_textarea(t('Primary links'), "$var][primary_links", $settings['primary_links'], 70, 8, t('The HTML code for the primary links. If this field is empty, Drupal will automatically generate a set of links based on which modules are enabled.'));
    $group .= form_textarea(t('Secondary links'), "$var][secondary_links", $settings['secondary_links'], 70, 8, t('The HTML code for the secondary links.'));
    $form .= form_group(t('Menu Settings'), $group, t('Customize the menus that are displayed at the top and/or bottom of the page. This configuration screen is only available in the site wide display configuration.'));

    // Toggle node display.
    $group = '';
    foreach (node_list() as $type) {
      $group .= form_checkbox($type, "$var][toggle_node_info_$type", 1, $settings["toggle_node_info_$type"]);
    }
    $form .= form_group(t('Display post information on'), $group, t('Enable or disable the "submitted by Username on date" text when displaying posts of the above type'));
  }

  $group = '';

  // Toggle settings
  $toggles = array('toggle_name' => t('Site name'),
        'toggle_search' => t('Search box'),
        'toggle_slogan' => t('Site slogan'),
        'toggle_mission' => t('Mission statement'),
        'toggle_primary_links' => t('Primary links'),
        'toggle_secondary_links' => t('Secondary links'),
        'toggle_node_user_picture' => t('User pictures in posts'),
        'toggle_comment_user_picture' => t('User pictures in comments'));

  foreach ($toggles as $name => $title) {
    if ((!$key) || in_array($name, $features)) {
      $group .= form_checkbox($title, "$var][$name", 1, $settings[$name]);
    }
  }
  if ($group) {
    $form .= form_group(t('Toggle display'), $group, t('Enable or disable the display of certain page elements.'));
  }

  if ($key) {
    // Template-specific settings
Dries's avatar
 
Dries committed
628
    $function = $themes[$key]->prefix .'_settings';
Dries's avatar
 
Dries committed
629 630 631 632 633 634 635 636 637
    if (function_exists($function)) {
      $group = $function();
      if (strpos($themes[$key]->description, '.theme')) {
        $form .= form_group(t('Theme-specific settings'), $group, t('These settings only exist for the %theme theme and all the styles based on it.', array('%theme' => $themes[$key]->prefix)));
      }
      else {
        $form .= form_group(t('Engine-specific settings'), $group, t('These settings only exist for all the templates and styles based on the %engine theme engine.', array('%engine' => $themes[$key]->prefix)));
      }
    }
Dries's avatar
 
Dries committed
638 639 640
  }

  print theme('page', system_settings_form($form));
Dries's avatar
 
Dries committed
641
}
Dries's avatar
 
Dries committed
642

Dries's avatar
 
Dries committed
643
?>