For the full copyright and license information, please view the LICENSE
file that was distributed with this source code.
--------------------------------------------------------------------- */
namespace CHV;
use G;
if (!defined('access') or !access) {
die('This file cannot be directly accessed.');
}
/**
* SYSTEM INTEGRITY CHECK
* Welcome to the jungle of non-standard PHP setups
* ----------------------------------------------------------------------------------------------------------------------------------------
*/
function check_system_integrity()
{
$settings = Settings::get();
/*** Check server requirements ***/
// Try to fix session crap setups (OVH)
@ini_set('session.gc_divisor', 100);
@ini_set('session.gc_probability', true);
@ini_set('session.use_trans_sid', false);
@ini_set('session.use_only_cookies', true);
@ini_set('session.hash_bits_per_character', 4);
$missing_tpl = '%n (%f) %t is disabled in this server. This %t must be enabled in your PHP configuration (php.ini) and/or you must add this missing %t.';
if (version_compare(PHP_VERSION, '5.6.0', '<')) {
$install_errors[] = 'This server is currently running PHP version '.PHP_VERSION.' and Chevereto needs at least PHP 5.6.0 to run. You need to update PHP in this server.';
}
if (ini_get('allow_url_fopen') !== 1 && !function_exists('curl_init')) {
$install_errors[] = "cURL isn't installed and allow_url_fopen is disabled. Chevereto needs one of these to perform HTTP requests to remote servers.";
}
if (preg_match('/apache/i', $_SERVER['SERVER_SOFTWARE']) && function_exists('apache_get_modules') && !in_array('mod_rewrite', apache_get_modules())) {
$install_errors[] = 'Apache mod_rewrite is not enabled in this server. This must be enabled to run Chevereto.';
}
if (!extension_loaded('gd') && !function_exists('gd_info')) {
$install_errors[] = 'GD Library is not enabled in this server. GD is needed to perform image handling.';
} else {
$imagetype_fail = 'image support is not enabled in your current PHP setup (GD Library).';
if (!imagetypes() & IMG_PNG) {
$install_errors[] = 'PNG ' . $imagetype_fail;
}
if (!imagetypes() & IMG_GIF) {
$install_errors[] = 'GIF ' . $imagetype_fail;
}
if (!imagetypes() & IMG_JPG) {
$install_errors[] = 'JPG ' . $imagetype_fail;
}
if (!imagetypes() & IMG_WBMP) {
$install_errors[] = 'BMP ' . $imagetype_fail;
}
}
foreach ([
'pdo' => [
'%label'=> 'PDO',
'%name' => 'PHP Data Objects',
'%slug' => 'book.pdo',
'%desc' => 'PDO is needed to perform database operations'
],
'pdo_mysql' => [
'%label'=> 'PDO_MYSQL',
'%name' => 'PDO MySQL Functions',
'%slug' => 'ref.pdo-mysql',
'%desc' => 'PDO_MYSQL is needed to work with a MySQL database',
],
'mbstring' => [
'%label'=> 'mbstring',
'%name' => 'Multibyte string',
'%slug' => 'book.mbstring',
'%desc' => 'Mbstring is needed to handle multibyte strings',
]
] as $k => $v) {
if (!extension_loaded($k)) {
$install_errors[] = strtr('%name (%label) is not loaded in this server. %desc.', $v);
}
}
// Check those bundled classes
$disabled_classes = explode(',', preg_replace('/\s+/', '', @ini_get('disable_classes')));
if (!empty($disabled_classes)) {
foreach (['DirectoryIterator', 'RegexIterator', 'Pdo', 'Exception'] as $k) {
if (in_array($k, $disabled_classes)) {
$install_errors[] = strtr(str_replace('%t', 'class', $missing_tpl), ['%n' => $k, '%f' => $k, '%u' => str_replace('_', '-', strtolower($k))]);
}
}
}
// Check those missing functions
foreach ([
'utf8_encode' => 'UTF-8 encode',
'utf8_decode' => 'UTF-8 decode'
] as $k => $v) {
if (!function_exists($k)) {
$install_errors[] = strtr(str_replace('%t', 'function', $missing_tpl), ['%n' => $v, '%f' => $k, '%u' => str_replace('_', '-', $k)]);
}
}
/*** Folders check ***/
$writing_paths = [CHV_PATH_IMAGES, CHV_PATH_CONTENT, CHV_APP_PATH_CONTENT, CHV_APP_PATH_INSTALL . 'update/temp/'];
foreach ($writing_paths as $v) {
if (!file_exists($v)) { // Exists?
if (!@mkdir($v)) {
$install_errors[] = "".G\absolute_to_relative($v)." doesn't exists. Make sure to upload it.";
}
} else { // Can write?
if (!is_writable($v)) {
$testFile = sprintf('%s/%s.tmp', $v, uniqid('data_write_test_'));
$handle = @fopen($testFile, 'w');
if (!$handle || fwrite($handle, 'Test write operation') === false) {
$install_errors[] = 'No write permission for PHP user '.get_current_user().' in '.G\absolute_to_relative($v).' directory. Chevereto needs to be able to write in this directory.';
} else {
fclose($handle);
unlink($testFile);
}
}
}
}
/*** System template file check ***/
$system_template = CHV_APP_PATH_CONTENT_SYSTEM . 'template.php';
if (!file_exists($system_template)) {
$install_errors[] = "".G\absolute_to_relative($system_template)." doesn't exists. Make sure to upload this.";
}
/*** License file ***/
$license_file = G_APP_PATH . 'license/check.php';
if (!file_exists($license_file)) {
$install_errors[] = "Can't find ".G\absolute_to_relative($license_file)." file. Make sure to upload the app/license folder.";
} else {
require_once($license_file);
}
/*** .htaccess checks (only for Apache) ***/
if (G\is_apache()) {
// Check for the root .htaccess file
if (!file_exists(G_ROOT_PATH . '.htaccess')) {
$install_errors[] = "Can't find root .htaccess file. Re-upload this file and take note that in some computers this file could be hidden in your local folder.";
}
// Check for the other .htaccess files
$htaccess_files = array(CHV_PATH_IMAGES, G_APP_PATH);
foreach ($htaccess_files as $dir) {
if (file_exists($dir . '.htaccess')) {
continue;
}
switch ($dir) {
case CHV_PATH_IMAGES:
$rules = 'static';
break;
case G_APP_PATH:
$rules = 'deny_php';
break;
}
$htaccess_file = G\generate_htaccess($rules, $dir, null, true);
if (!$htaccess_file and $dir == G_APP_PATH) {
$install_errors[] = "Can't create " . G\absolute_to_relative($dir) . '.htaccess file. The file must be uploaded manually to this path.
Alternatively you can create the file yourself with this contents:
'.htmlspecialchars($htaccess_file).'
';
}
}
}
if (is_array($install_errors) && count($install_errors) > 0) {
if (access === 'cli') {
G\debug($install_errors);
die(255);
}
Render\chevereto_die($install_errors);
}
}