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Adrian Rossouw
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<?php
/**
* @file
* Drupal specific functions for the provisioning framework.
*
* This module is responsible for the creation and maintenance of the drupal settings.php file, the sites directory structure
* and all the install api code.
*/
/**
* @ingroup provisionui
* @{
*/
/**
* Implementation of hook_provision_service()
*/
function provision_drupal_provision_service() {
return t("Drupal sites");
}
/**
* Implentation of hook_provision_configure()
*/
function provision_drupal_provision_configure() {
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$profiles = file_scan_directory('./profiles', '\.profile$', array('.', '..', 'CVS'), 0, TRUE, 'name', 0);
// Don't need to choose profile if only one available.
if (sizeof($profiles) == 1) {
$profile = array_pop($profiles);
$form['provision_default_profile'] = array('#type' => 'value', '#value' => $profile->name);
}
elseif (sizeof($profiles) > 1) {
foreach ($profiles as $profile) {
if ($_POST['profile'] == $profile->name) {
$options[$profile->name] = $profile->name;
}
}
$form['provision_default_profile'] = array(
'#type' => 'radios',
'#title' => t('Default install profile'),
'#description' => t('New sites will be created with the following install profile'),
'#options' => $options,
'#default_value' => variable_get('provision_default_profile', 'default'),
);
}
$form['provision_settings_template'] = array(
'#type' => 'textarea',
'#title' => t('Drupal settings template'),
'#description' => t('The template for the generated settings.php file.'),
'#default_value' => variable_get('provision_settings_template', $template),
'#cols' => 60,
'#rows' => 5,
);
return $form;
}
/**
* @} End "ingroup provisionui"
*/
/**
* Test to see if the site settings.php exists
*
* @param url
* The url of the site to check
* @return
* If the file exists, return TRUE, else return FALSE.
*/
function _provision_drupal_site_exists($url) {
return file_exists("sites/$url/settings.php");
}
/**
* The default template to use while generating config files.
*
* @return
* The default template for the config file
*/
function _provision_drupal_default_template() {
return <<<END
<?php
\$db_url = "[site-db-type]://[site-db-username]:[site-db-passwd]@[site-db-host]/[site-db-name]";
\$profile = "[site-profile]";
# Additional host wide configuration settings. Useful for safely specifying configuration settings.
if (file_exists('includes/global.inc')) {
include_once('includes/global.inc');
}
?>
END;
}
/**
* Generate a settings file for the site.
*
* @param url
* The url of the site being invoked.
* @param data
* A reference to the associated array containing the data for the site. This needs to be a reference,
* because the modules might provide additional information about the site.
*/
function _provision_drupal_create_settings_file($url, &$data) {
$fp = fopen("sites/$url/settings.php", "w");
$text = variable_get('provision_settings_template', _provision_drupal_default_template());
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fwrite($fp, token_replace($text, 'site', $data));
fclose($fp);
# Change the ownership of the file
#chown($path, variable_get('provision_user', 'hosting'), variable_get('provision_group', 'apache'));
# Change the permissions of the file
# system("chmod 0550 sites/$url/settings.php");
# TODO: add md5 of the file created to $data
}
/**
* Create the directories needed to host a drupal site
*
* Also maintains permissions on existing directories.
*/
function _provision_drupal_create_directories($url, $profile = null) {
$paths = array(
"sites/$url" => '0750',
"sites/$url/files" => '2750',
"sites/$url/files/tmp" => '2770',
"sites/$url/files/images" => '2770',
"sites/$url/files/pictures" => '2770',
"sites/$url/themes" => '2750',
"sites/$url/modules" => '2750',
);
foreach ($paths as $path => $perm) {
if (!is_dir($path)) {
mkdir($path);
}
# Change the ownership of the files so that they are owned by the user the script is running as, and the
# web server has access to them.
# chown($path, variable_get('provision_user', 'hosting'), variable_get('provision_group', 'apache'));
# Change the permissions to the optimal settings that were specified.
# system("chmod $perm $path");
}
}
/**
* Switch the active database to the newly created database
*
* This function tricks Drupal into thinking that it's running on an uninstalled site,
* so that it can cleanly install the database schema. It also handles switching back to the
* main provisioning site.
*/
function _provision_drupal_switch_active_site($url = null) {
static $backups;
if ($url) {
/* Pretend to be the site being installed */
// Fake the necessary HTTP headers that Drupal needs:
$drupal_base_url = parse_url($url);
$_SERVER['HTTP_HOST'] = $drupal_base_url['host'];
$_SERVER['PHP_SELF'] = $drupal_base_url['path'].'/index.php';
$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] = $_SERVER['PHP_SELF'];
$_SERVER['REMOTE_ADDR'] = NULL;
$_SERVER['REQUEST_METHOD'] = NULL;
/**
* This code is sourced from bootstrap.inc. I am trying to avoid patching core, but it might
* be smarter to make a small patch to allow core to re-initialize itself more easily
*/
// Export the following settings.php variables to the global namespace
global $base_url, $base_path, $base_root;
global $db_url, $db_prefix, $cookie_domain, $conf, $installed_profile, $active_db, $profile;
# This is just for backup, to be able to restore to the old DRUSH system.
$backups = compact("active_db", "base_url", "base_path", "db_url", "db_prefix", "cookie_domain", "conf", "installed_profile", "profile");
$conf = array();
include_once $_SERVER['DOCUMENT_ROOT'] .'sites/' . $url . '/settings.php';
// Create base URL
$base_root = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
$base_url = $base_root .= '://'. preg_replace('/[^a-z0-9-:._]/i', '', $_SERVER['HTTP_HOST']);
if ($dir = trim(dirname($_SERVER['SCRIPT_NAME']), '\,/')) {
$base_path = "/$dir";
$base_url .= $base_path;
$base_path .= '/';
}
else {
$base_path = '/';
}
unset($active_db);
$db_url['new'] = $db_url;
db_set_active('new');
}
else {
/**
* Restore everything to the way it was before we switched sites.
*/
// Fake the necessary HTTP headers that Drupal needs:
$drupal_base_url = parse_url(DRUSH_URI);
$_SERVER['HTTP_HOST'] = $drupal_base_url['host'];
$_SERVER['PHP_SELF'] = $drupal_base_url['path'].'/index.php';
$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] = $_SERVER['PHP_SELF'];
$_SERVER['REMOTE_ADDR'] = NULL;
$_SERVER['REQUEST_METHOD'] = NULL;
global $base_url, $base_path, $base_root;
// Export the following settings.php variables to the global namespace
global $db_url, $db_prefix, $cookie_domain, $conf, $installed_profile, $profile;
# This is just for backup, to be able to restore to the old DRUSH system.
extract($backups, EXTR_OVERWRITE);
}
}
/**
* Force drupal to load the modules it expects to find on an uninstalled site
*/
function _provision_drupal_force_load_modules($url = null) {
static $backup_list;
if ($url) {
$backup_list = module_list();
require_once './modules/system/system.install';
require_once './includes/file.inc';
require_once './includes/install.inc';
// Load module basics (needed for hook invokes).
include_once './includes/module.inc';
$module_list['system']['filename'] = 'modules/system/system.module';
$module_list['filter']['filename'] = 'modules/filter/filter.module';
module_list(TRUE, FALSE, FALSE, $module_list);
drupal_load('module', 'system');
drupal_load('module', 'filter');
#should i load all the other modules? i don't know .=\
}
else {
module_list(TRUE, FALSE, FALSE, $backup_list);
}
}
/**
* Install the drupal schema and install profile
*/
function _provision_install_schema($profile) {
// Load the profile.
require_once "./profiles/$profile/$profile.profile";
$requirements = drupal_check_profile($profile);
$severity = drupal_requirements_severity($requirements);
// If there are issues, report them.
if ($severity == REQUIREMENT_ERROR) {
foreach ($requirements as $requirement) {
if (isset($requirement['severity']) && $requirement['severity'] == REQUIREMENT_ERROR) {
drupal_set_message($requirement['description'] .' ('. st('Currently using !item !version', array('!item' => $requirement['title'], '!version' => $requirement['value'])) .')', 'error');
}
}
return false;
}
// Verify existence of all required modules.
$modules = drupal_verify_profile($profile, null);
if (!$modules) {
return false;
}
// Perform actual installation defined in the profile.
drupal_install_profile($profile, $modules);
// Show profile finalization info.
$function = $profile .'_profile_final';
if (function_exists($function)) {
// More steps required
$profile_message = $function();
}
}