drupal/includes/install.inc

999 lines
31 KiB
PHP

<?php
// $Id$
/**
* Indicates that a module has not been installed yet.
*/
define('SCHEMA_UNINSTALLED', -1);
/**
* Indicates that a module has been installed.
*/
define('SCHEMA_INSTALLED', 0);
/**
* Requirement severity -- Informational message only.
*/
define('REQUIREMENT_INFO', -1);
/**
* Requirement severity -- Requirement successfully met.
*/
define('REQUIREMENT_OK', 0);
/**
* Requirement severity -- Warning condition; proceed but flag warning.
*/
define('REQUIREMENT_WARNING', 1);
/**
* Requirement severity -- Error condition; abort installation.
*/
define('REQUIREMENT_ERROR', 2);
/**
* File permission check -- File exists.
*/
define('FILE_EXIST', 1);
/**
* File permission check -- File is readable.
*/
define('FILE_READABLE', 2);
/**
* File permission check -- File is writable.
*/
define('FILE_WRITABLE', 4);
/**
* File permission check -- File is executable.
*/
define('FILE_EXECUTABLE', 8);
/**
* File permission check -- File does not exist.
*/
define('FILE_NOT_EXIST', 16);
/**
* File permission check -- File is not readable.
*/
define('FILE_NOT_READABLE', 32);
/**
* File permission check -- File is not writable.
*/
define('FILE_NOT_WRITABLE', 64);
/**
* File permission check -- File is not executable.
*/
define('FILE_NOT_EXECUTABLE', 128);
/**
* Initialize the update system by loading all installed module's .install files.
*/
function drupal_load_updates() {
foreach (drupal_get_installed_schema_version(NULL, FALSE, TRUE) as $module => $schema_version) {
if ($schema_version > -1) {
module_load_install($module);
}
}
}
/**
* Returns an array of available schema versions for a module.
*
* @param $module
* A module name.
* @return
* If the module has updates, an array of available updates sorted by version.
* Otherwise, FALSE.
*/
function drupal_get_schema_versions($module) {
$updates = array();
$functions = get_defined_functions();
foreach ($functions['user'] as $function) {
if (strpos($function, $module . '_update_') === 0) {
$version = substr($function, strlen($module . '_update_'));
if (is_numeric($version)) {
$updates[] = $version;
}
}
}
if (count($updates) == 0) {
return FALSE;
}
// Make sure updates are run in numeric order, not in definition order.
sort($updates, SORT_NUMERIC);
return $updates;
}
/**
* Returns the currently installed schema version for a module.
*
* @param $module
* A module name.
* @param $reset
* Set to TRUE after modifying the system table.
* @param $array
* Set to TRUE if you want to get information about all modules in the
* system.
* @return
* The currently installed schema version.
*/
function drupal_get_installed_schema_version($module, $reset = FALSE, $array = FALSE) {
static $versions = array();
if ($reset) {
$versions = array();
}
if (!$versions) {
$versions = array();
$result = db_query("SELECT name, schema_version FROM {system} WHERE type = :type", array(':type' => 'module'));
foreach ($result as $row) {
$versions[$row->name] = $row->schema_version;
}
}
return $array ? $versions : $versions[$module];
}
/**
* Update the installed version information for a module.
*
* @param $module
* A module name.
* @param $version
* The new schema version.
*/
function drupal_set_installed_schema_version($module, $version) {
db_update('system')
->fields(array('schema_version' => $version))
->condition('name', $module)
->execute();
}
/**
* Loads the install profile definition, extracting its defined name.
*
* @return
* The name defined in the profile's _profile_details() hook.
*/
function drupal_install_profile_name() {
global $profile;
static $name = NULL;
if (!isset($name)) {
// Load profile details.
$function = $profile . '_profile_details';
if (function_exists($function)) {
$details = $function();
}
$name = isset($details['name']) ? $details['name'] : 'Drupal';
}
return $name;
}
/**
* Auto detect the base_url with PHP predefined variables.
*
* @param $file
* The name of the file calling this function so we can strip it out of
* the URI when generating the base_url.
* @return
* The auto-detected $base_url that should be configured in settings.php
*/
function drupal_detect_baseurl($file = 'install.php') {
global $profile;
$proto = $_SERVER['HTTPS'] ? 'https://' : 'http://';
$host = $_SERVER['SERVER_NAME'];
$port = ($_SERVER['SERVER_PORT'] == 80 ? '' : ':' . $_SERVER['SERVER_PORT']);
$uri = preg_replace("/\?.*/", '', $_SERVER['REQUEST_URI']);
$dir = str_replace("/$file", '', $uri);
return "$proto$host$port$dir";
}
/**
* Detect all supported databases that are compiled into PHP.
*
* @return
* An array of database types compiled into PHP.
*/
function drupal_detect_database_types() {
$databases = array();
// We define a driver as a directory in /includes/database that in turn
// contains a database.inc file. That allows us to drop in additional drivers
// without modifying the installer.
// Because we have no registry yet, we need to also include the install.inc
// file for the driver explicitly.
foreach (file_scan_directory(DRUPAL_ROOT . '/includes/database', '/^[a-z]*$/i', array('recurse' => FALSE)) as $file) {
include_once "{$file->filepath}/install.inc";
include_once "{$file->filepath}/database.inc";
$drivers[$file->filename] = $file->filepath;
}
foreach ($drivers as $driver => $file) {
$class = 'DatabaseInstaller_' . $driver;
$installer = new $class();
if ($installer->installable()) {
$databases[$driver] = $installer->name();
}
}
// Usability: unconditionally put the MySQL driver on top.
if (isset($databases['mysql'])) {
$mysql_database = $databases['mysql'];
unset($databases['mysql']);
$databases = array('mysql' => $mysql_database) + $databases;
}
return $databases;
}
abstract class DatabaseInstaller {
protected $success = array();
protected $tests = array(
'testCreate' => array(
'query' => 'CREATE TABLE drupal_install_test (id int NULL)',
'success' => 'CREATE',
'message' => 'Failed to create a test table on your %name database server with the command %query. %name reports the following message: %error.<ul><li>Are you sure the configured username has the necessary %name permissions to create tables in the database?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.',
'fatal' => TRUE,
),
'testInsert' => array(
'query' => 'INSERT INTO drupal_install_test (id) VALUES (1)',
'success' => 'INSERT',
'message' => 'Failed to insert a value into a test table on your %name database server. We tried inserting a value with the command %query and %name reported the following error: %error.',
),
'testUpdate' => array(
'query' => 'UPDATE drupal_install_test SET id = 2',
'success' => 'UPDATE',
'message' => 'Failed to update a value in a test table on your %name database server. We tried updating a value with the command %query and %name reported the following error: %error.',
),
'testDelete' => array(
'query' => 'DELETE FROM drupal_install_test',
'success' => 'DELETE',
'message' => 'Failed to delete a value from a test table on your %name database server. We tried deleting a value with the command %query and %name reported the following error: %error.',
),
'testDrop' => array(
'query' => 'DROP TABLE drupal_install_test',
'success' => 'DELETE',
'message' => 'Failed to drop a test table from your %name database server. We tried dropping a table with the command %query and %name reported the following error %error.',
),
);
public $error = FALSE;
protected function hasPdoDriver() {
return in_array($this->pdoDriver, PDO::getAvailableDrivers());
}
public function installable() {
return $this->hasPdoDriver();
}
abstract public function name();
public function test() {
$return = $this->testConnect();
if ($return === FALSE) {
return FALSE;
}
foreach ($this->tests as $test) {
$return = $this->runTestQuery($test['query'], $test['success'], $test['message'], !empty($test['fatal']));
if ($return === FALSE) {
return FALSE;
}
}
return $this->success;
}
/**
* Check if we can connect to the database.
*
* @return
* FALSE on failure.
*/
protected function testConnect() {
try {
// This doesn't actually test the connection.
db_set_active();
// Now actually do a check.
Database::getConnection();
$this->success[] = 'CONNECT';
}
catch (Exception $e) {
drupal_set_message(st('Failed to connect to your %name database server. %name reports the following message: <strong>%error</strong>.<ul><li>Are you sure that you have typed the correct database hostname?</li><li>Are you sure that the database server is running?</li><li>Are you sure you have the correct database name?</li><li>Are you sure you have the correct username and password?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%error' => $e->getMessage(), '%name' => $this->name())), 'error');
return FALSE;
}
}
protected function runTestQuery($query, $success, $message, $fatal = FALSE) {
try {
db_query($query);
$this->success[] = $success;
}
catch (Exception $e) {
drupal_set_message(st($message, array('%query' => $query, '%error' => $e->getMessage(), '%name' => $this->name())), 'error');
$this->error = TRUE;
if ($fatal) {
return FALSE;
}
}
}
}
/**
* Replace values in settings.php with values in the submitted array.
*
* @param $settings
* An array of settings that need to be updated.
*/
function drupal_rewrite_settings($settings = array(), $prefix = '') {
$default_settings = 'sites/default/default.settings.php';
drupal_static_reset('conf_path');
$settings_file = conf_path(FALSE) . '/' . $prefix . 'settings.php';
// Build list of setting names and insert the values into the global namespace.
$keys = array();
foreach ($settings as $setting => $data) {
$GLOBALS[$setting] = $data['value'];
$keys[] = $setting;
}
$buffer = NULL;
$first = TRUE;
if ($fp = fopen(DRUPAL_ROOT . '/' . $default_settings, 'r')) {
// Step line by line through settings.php.
while (!feof($fp)) {
$line = fgets($fp);
if ($first && substr($line, 0, 5) != '<?php') {
$buffer = "<?php\n\n";
}
$first = FALSE;
// Check for constants.
if (substr($line, 0, 7) == 'define(') {
preg_match('/define\(\s*[\'"]([A-Z_-]+)[\'"]\s*,(.*?)\);/', $line, $variable);
if (in_array($variable[1], $keys)) {
$setting = $settings[$variable[1]];
$buffer .= str_replace($variable[2], " '" . $setting['value'] . "'", $line);
unset($settings[$variable[1]]);
unset($settings[$variable[2]]);
}
else {
$buffer .= $line;
}
}
// Check for variables.
elseif (substr($line, 0, 1) == '$') {
preg_match('/\$([^ ]*) /', $line, $variable);
if (in_array($variable[1], $keys)) {
// Write new value to settings.php in the following format:
// $'setting' = 'value'; // 'comment'
$setting = $settings[$variable[1]];
$buffer .= '$' . $variable[1] . " = " . var_export($setting['value'], TRUE) . ";" . (!empty($setting['comment']) ? ' // ' . $setting['comment'] . "\n" : "\n");
unset($settings[$variable[1]]);
}
else {
$buffer .= $line;
}
}
else {
$buffer .= $line;
}
}
fclose($fp);
// Add required settings that were missing from settings.php.
foreach ($settings as $setting => $data) {
if ($data['required']) {
$buffer .= "\$$setting = " . var_export($data['value'], TRUE) . ";\n";
}
}
$fp = fopen(DRUPAL_ROOT . '/' . $settings_file, 'w');
if ($fp && fwrite($fp, $buffer) === FALSE) {
drupal_set_message(st('Failed to modify %settings, please verify the file permissions.', array('%settings' => $settings_file)), 'error');
}
}
else {
drupal_set_message(st('Failed to open %settings, please verify the file permissions.', array('%settings' => $default_settings)), 'error');
}
}
/**
* Get list of all .install files.
*
* @param $module_list
* An array of modules to search for their .install files.
*/
function drupal_get_install_files($module_list = array()) {
$installs = array();
foreach ($module_list as $module) {
$installs = array_merge($installs, drupal_system_listing('/' . $module . '.install$/', 'modules'));
}
return $installs;
}
/**
* Get a list of modules required by an installation profile.
*
* @param profile
* Name of profile.
* @param locale
* Name of locale used (if any).
* @return
* The list of modules to install.
*/
function drupal_get_profile_modules($profile, $locale = 'en') {
$profile_file = "./profiles/$profile/$profile.profile";
require_once($profile_file);
// Get a list of modules required by this profile.
$function = $profile . '_profile_modules';
return array_merge(drupal_required_modules(), $function(), ($locale != 'en' && !empty($locale) ? array('locale') : array()));
}
/**
* Verify an install profile for installation.
*
* @param $profile
* Name of install profile to verify.
* @param $locale
* Name of locale used (if any).
* @return
* The list of modules to install.
*/
function drupal_verify_profile($profile, $locale) {
include_once DRUPAL_ROOT . '/includes/file.inc';
include_once DRUPAL_ROOT . '/includes/common.inc';
$profile_file = DRUPAL_ROOT . "/profiles/$profile/$profile.profile";
if (!isset($profile) || !file_exists($profile_file)) {
install_no_profile_error();
}
$module_list = drupal_get_profile_modules($profile, $locale);
// Get a list of modules that exist in Drupal's assorted subdirectories.
$present_modules = array();
foreach (drupal_system_listing('/\.module$/', 'modules', 'name', 0) as $present_module) {
$present_modules[] = $present_module->name;
}
// Verify that all of the profile's required modules are present.
$missing_modules = array_diff($module_list, $present_modules);
$requirements = array();
if (count($missing_modules)) {
$modules = array();
foreach ($missing_modules as $module) {
$modules[] = '<span class="admin-missing">' . drupal_ucfirst($module) . '</span>';
}
$requirements['required_modules'] = array(
'title' => st('Required modules'),
'value' => st('Required modules not found.'),
'severity' => REQUIREMENT_ERROR,
'description' => st('The following modules are required but were not found. Please move them into the appropriate modules subdirectory, such as <em>sites/all/modules</em>. Missing modules: !modules', array('!modules' => implode(', ', $modules))),
);
}
return $requirements;
}
/**
* Calls the install function for a given list of modules.
*
* @param $module_list
* The modules to install.
* @param $disable_modules_installed_hook
* Normally just testing wants to set this to TRUE.
*/
function drupal_install_modules($module_list = array(), $disable_modules_installed_hook = FALSE) {
$files = system_get_module_data();
$module_list = array_flip(array_values($module_list));
do {
$moved = FALSE;
foreach ($module_list as $module => $weight) {
$file = $files[$module];
if (isset($file->info['dependencies']) && is_array($file->info['dependencies'])) {
foreach ($file->info['dependencies'] as $dependency) {
if (isset($module_list[$dependency]) && $module_list[$module] < $module_list[$dependency] +1) {
$module_list[$module] = $module_list[$dependency] +1;
$moved = TRUE;
}
}
}
}
} while ($moved);
asort($module_list);
$module_list = array_keys($module_list);
module_enable($module_list, $disable_modules_installed_hook);
}
/**
* Callback to install an individual install profile module.
*
* Used during installation to install modules one at a time and then
* enable them, or to install a number of modules at one time
* from admin/build/modules.
*
* @param $module
* The machine name of the module to install.
* @return
* TRUE if the module got installed.
*/
function _drupal_install_module($module) {
if (drupal_get_installed_schema_version($module, TRUE) == SCHEMA_UNINSTALLED) {
module_load_install($module);
drupal_load('module', $module);
module_invoke($module, 'install');
$versions = drupal_get_schema_versions($module);
drupal_set_installed_schema_version($module, $versions ? max($versions) : SCHEMA_INSTALLED);
return TRUE;
}
}
/**
* Manually include all files for the active database.
*
* Because we have no registry yet, we need to manually include the
* necessary database include files.
*/
function drupal_install_init_database() {
static $included = FALSE;
if (!$included) {
$connection_info = Database::getConnectionInfo();
$driver = $connection_info['default']['driver'];
require_once DRUPAL_ROOT . '/includes/database/query.inc';
require_once DRUPAL_ROOT . '/includes/database/select.inc';
require_once DRUPAL_ROOT . '/includes/database/schema.inc';
foreach (glob(DRUPAL_ROOT . '/includes/database/' . $driver . '/*.inc') as $include_file) {
require_once $include_file;
}
$included = TRUE;
}
}
/**
* Callback to install the system module.
*
* Separated from the installation of other modules so core system
* functions can be made available while other modules are installed.
*/
function drupal_install_system() {
$system_path = dirname(drupal_get_filename('module', 'system', NULL));
require_once DRUPAL_ROOT . '/' . $system_path . '/system.install';
drupal_install_init_database();
module_invoke('system', 'install');
$system_versions = drupal_get_schema_versions('system');
$system_version = $system_versions ? max($system_versions) : SCHEMA_INSTALLED;
db_insert('system')
->fields(array('filename', 'name', 'type', 'owner', 'status', 'schema_version'))
->values(array(
'filename' => $system_path . '/system.module',
'name' => 'system',
'type' => 'module',
'owner' => '',
'status' => 1,
'schema_version' => $system_version
))
->execute();
// Now that we've installed things properly, bootstrap the full Drupal environment
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
system_get_module_data();
}
/**
* Calls the uninstall function and updates the system table for a given module.
*
* @param $module_list
* The modules to uninstall.
*/
function drupal_uninstall_modules($module_list = array()) {
foreach ($module_list as $module) {
// First, retrieve all the module's menu paths from db.
drupal_load('module', $module);
$paths = module_invoke($module, 'menu');
// Uninstall the module.
module_load_install($module);
module_invoke($module, 'uninstall');
watchdog('system', '%module module uninstalled.', array('%module' => $module), WATCHDOG_INFO);
// Now remove the menu links for all paths declared by this module.
if (!empty($paths)) {
$paths = array_keys($paths);
// Clean out the names of load functions.
foreach ($paths as $index => $path) {
$parts = explode('/', $path, MENU_MAX_PARTS);
foreach ($parts as $k => $part) {
if (preg_match('/^%[a-z_]*$/', $part)) {
$parts[$k] = '%';
}
}
$paths[$index] = implode('/', $parts);
}
$placeholders = implode(', ', array_fill(0, count($paths), "'%s'"));
$result = db_select('menu_links')
->fields('menu_links')
->condition('router_path', $paths, 'IN')
->condition('external', 0)
->orderBy('depth')
->execute();
// Remove all such items. Starting from those with the greatest depth will
// minimize the amount of re-parenting done by menu_link_delete().
foreach ($result as $item) {
_menu_delete_item($item, TRUE);
}
}
drupal_set_installed_schema_version($module, SCHEMA_UNINSTALLED);
}
if (!empty($module_list)) {
// Call hook_module_uninstall to let other modules act
module_invoke_all('modules_uninstalled', $module_list);
}
}
/**
* Verify the state of the specified file.
*
* @param $file
* The file to check for.
* @param $mask
* An optional bitmask created from various FILE_* constants.
* @param $type
* The type of file. Can be file (default), dir, or link.
* @return
* TRUE on success or FALSE on failure. A message is set for the latter.
*/
function drupal_verify_install_file($file, $mask = NULL, $type = 'file') {
$return = TRUE;
// Check for files that shouldn't be there.
if (isset($mask) && ($mask & FILE_NOT_EXIST) && file_exists($file)) {
return FALSE;
}
// Verify that the file is the type of file it is supposed to be.
if (isset($type) && file_exists($file)) {
$check = 'is_' . $type;
if (!function_exists($check) || !$check($file)) {
$return = FALSE;
}
}
// Verify file permissions.
if (isset($mask)) {
$masks = array(FILE_EXIST, FILE_READABLE, FILE_WRITABLE, FILE_EXECUTABLE, FILE_NOT_READABLE, FILE_NOT_WRITABLE, FILE_NOT_EXECUTABLE);
foreach ($masks as $current_mask) {
if ($mask & $current_mask) {
switch ($current_mask) {
case FILE_EXIST:
if (!file_exists($file)) {
if ($type == 'dir') {
drupal_install_mkdir($file, $mask);
}
if (!file_exists($file)) {
$return = FALSE;
}
}
break;
case FILE_READABLE:
if (!is_readable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
case FILE_WRITABLE:
if (!is_writable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
case FILE_EXECUTABLE:
if (!is_executable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
case FILE_NOT_READABLE:
if (is_readable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
case FILE_NOT_WRITABLE:
if (is_writable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
case FILE_NOT_EXECUTABLE:
if (is_executable($file) && !drupal_install_fix_file($file, $mask)) {
$return = FALSE;
}
break;
}
}
}
}
return $return;
}
/**
* Create a directory with specified permissions.
*
* @param $file
* The name of the directory to create;
* @param $mask
* The permissions of the directory to create.
* @param $message
* (optional) Whether to output messages. Defaults to TRUE.
* @return
* TRUE/FALSE whether or not the directory was successfully created.
*/
function drupal_install_mkdir($file, $mask, $message = TRUE) {
$mod = 0;
$masks = array(FILE_READABLE, FILE_WRITABLE, FILE_EXECUTABLE, FILE_NOT_READABLE, FILE_NOT_WRITABLE, FILE_NOT_EXECUTABLE);
foreach ($masks as $m) {
if ($mask & $m) {
switch ($m) {
case FILE_READABLE:
$mod += 444;
break;
case FILE_WRITABLE:
$mod += 222;
break;
case FILE_EXECUTABLE:
$mod += 111;
break;
}
}
}
if (@mkdir($file, intval("0$mod", 8))) {
return TRUE;
}
else {
return FALSE;
}
}
/**
* Attempt to fix file permissions.
*
* The general approach here is that, because we do not know the security
* setup of the webserver, we apply our permission changes to all three
* digits of the file permission (i.e. user, group and all).
*
* To ensure that the values behave as expected (and numbers don't carry
* from one digit to the next) we do the calculation on the octal value
* using bitwise operations. This lets us remove, for example, 0222 from
* 0700 and get the correct value of 0500.
*
* @param $file
* The name of the file with permissions to fix.
* @param $mask
* The desired permissions for the file.
* @param $message
* (optional) Whether to output messages. Defaults to TRUE.
* @return
* TRUE/FALSE whether or not we were able to fix the file's permissions.
*/
function drupal_install_fix_file($file, $mask, $message = TRUE) {
// If $file does not exist, fileperms() issues a PHP warning.
if (!file_exists($file)) {
return FALSE;
}
$mod = fileperms($file) & 0777;
$masks = array(FILE_READABLE, FILE_WRITABLE, FILE_EXECUTABLE, FILE_NOT_READABLE, FILE_NOT_WRITABLE, FILE_NOT_EXECUTABLE);
// FILE_READABLE, FILE_WRITABLE, and FILE_EXECUTABLE permission strings
// can theoretically be 0400, 0200, and 0100 respectively, but to be safe
// we set all three access types in case the administrator intends to
// change the owner of settings.php after installation.
foreach ($masks as $m) {
if ($mask & $m) {
switch ($m) {
case FILE_READABLE:
if (!is_readable($file)) {
$mod |= 0444;
}
break;
case FILE_WRITABLE:
if (!is_writable($file)) {
$mod |= 0222;
}
break;
case FILE_EXECUTABLE:
if (!is_executable($file)) {
$mod |= 0111;
}
break;
case FILE_NOT_READABLE:
if (is_readable($file)) {
$mod &= ~0444;
}
break;
case FILE_NOT_WRITABLE:
if (is_writable($file)) {
$mod &= ~0222;
}
break;
case FILE_NOT_EXECUTABLE:
if (is_executable($file)) {
$mod &= ~0111;
}
break;
}
}
}
// chmod() will work if the web server is running as owner of the file.
// If PHP safe_mode is enabled the currently executing script must also
// have the same owner.
if (@chmod($file, $mod)) {
return TRUE;
}
else {
return FALSE;
}
}
/**
* Send the user to a different installer page.
*
* This issues an on-site HTTP redirect. Messages (and errors) are erased.
*
* @param $path
* An installer path.
*/
function install_goto($path) {
global $base_url;
header('Location: ' . $base_url . '/' . $path);
header('Cache-Control: no-cache'); // Not a permanent redirect.
exit();
}
/**
* Functional equivalent of t(), used when some systems are not available.
*
* Used during the install process, when database, theme, and localization
* system is possibly not yet available.
*
* @see t()
*/
function st($string, $args = array()) {
static $locale_strings = NULL;
global $profile, $install_locale;
if (!isset($locale_strings)) {
$locale_strings = array();
$filename = 'profiles/' . $profile . '/translations/' . $install_locale . '.po';
if (file_exists(DRUPAL_ROOT . '/' . $filename)) {
require_once DRUPAL_ROOT . '/includes/locale.inc';
$file = (object) array('filepath' => $filename);
_locale_import_read_po('mem-store', $file);
$locale_strings = _locale_import_one_string('mem-report');
}
}
require_once DRUPAL_ROOT . '/includes/theme.inc';
// Transform arguments before inserting them
foreach ($args as $key => $value) {
switch ($key[0]) {
// Escaped only
case '@':
$args[$key] = check_plain($value);
break;
// Escaped and placeholder
case '%':
default:
$args[$key] = '<em>' . check_plain($value) . '</em>';
break;
// Pass-through
case '!':
}
}
return strtr((!empty($locale_strings[$string]) ? $locale_strings[$string] : $string), $args);
}
/**
* Check an install profile's requirements.
*
* @param $profile
* Name of install profile to check.
* @return
* Array of the install profile's requirements.
*/
function drupal_check_profile($profile) {
include_once DRUPAL_ROOT . '/includes/file.inc';
$profile_file = DRUPAL_ROOT . "/profiles/$profile/$profile.profile";
if (!isset($profile) || !file_exists($profile_file)) {
install_no_profile_error();
}
require_once $profile_file;
// Get a list of modules required by this profile.
$function = $profile . '_profile_modules';
$module_list = array_unique(array_merge(drupal_required_modules(), $function()));
// Get a list of all .install files.
$installs = drupal_get_install_files($module_list);
// Collect requirement testing results
$requirements = array();
foreach ($installs as $install) {
require_once DRUPAL_ROOT . '/' . $install->filepath;
$function = $install->name . '_requirements';
if (function_exists($function)) {
$requirements = array_merge($requirements, $function('install'));
}
}
return $requirements;
}
/**
* Extract highest severity from requirements array.
*
* @param $requirements
* An array of requirements, in the same format as is returned by
* hook_requirements().
* @return
* The highest severity in the array.
*/
function drupal_requirements_severity(&$requirements) {
$severity = REQUIREMENT_OK;
foreach ($requirements as $requirement) {
if (isset($requirement['severity'])) {
$severity = max($severity, $requirement['severity']);
}
}
return $severity;
}
/**
* Check a module's requirements.
*
* @param $module
* Machine name of module to check.
* @return
* TRUE/FALSE depending on the requirements are in place.
*/
function drupal_check_module($module) {
// Include install file
$install = drupal_get_install_files(array($module));
if (isset($install[$module])) {
require_once DRUPAL_ROOT . '/' . $install[$module]->filepath;
// Check requirements
$requirements = module_invoke($module, 'requirements', 'install');
if (is_array($requirements) && drupal_requirements_severity($requirements) == REQUIREMENT_ERROR) {
// Print any error messages
foreach ($requirements as $requirement) {
if (isset($requirement['severity']) && $requirement['severity'] == REQUIREMENT_ERROR) {
$message = $requirement['description'];
if (isset($requirement['value']) && $requirement['value']) {
$message .= ' (' . t('Currently using !item !version', array('!item' => $requirement['title'], '!version' => $requirement['value'])) . ')';
}
drupal_set_message($message, 'error');
}
}
return FALSE;
}
}
return TRUE;
}