*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Chevereto\Legacy;
use Chevereto\Config\Config;
use Chevereto\Config\SystemConfig;
use Imagick;
use Throwable;
use function Chevereto\Legacy\G\absolute_to_relative;
use function Chevereto\Legacy\G\is_writable;
use function Chevereto\Vars\server;
function getFailingImageFormats(string $imageLibrary): array
{
$mustHaveFormats = ['PNG', 'GIF', 'JPEG', 'BMP', 'WEBP'];
$image_formats_available = Config::system()->imageFormatsAvailable();
if (is_array($image_formats_available)) {
$mustHaveFormats = $image_formats_available;
}
$failed_formats = [];
if ($imageLibrary === 'imagick') {
$imageFormats = Imagick::queryFormats();
foreach ($mustHaveFormats as $format) {
if (! in_array($format, $imageFormats)) {
$failed_formats[] = $format;
}
}
} elseif ($imageLibrary === 'gd') {
$imageTypes = imagetypes();
foreach ($mustHaveFormats as $format) {
if (! ($imageTypes & constant("IMG_{$format}"))) {
$failed_formats[] = $format;
}
}
}
return array_map('strtolower', $failed_formats);
}
function filesystemPermissionsCheck(): void
{
$errors = [];
$writing_paths = [CHV_PATH_IMAGES, PATH_PUBLIC_CONTENT, PATH_APP_CONTENT];
foreach ($writing_paths as $v) {
if (! file_exists($v)) {
try {
mkdir($v);
} catch (Throwable) {
$errors[] = ''
. absolute_to_relative($v)
. " doesn't exists and can't be created.";
}
} else {
if (! is_writable($v)) {
$errors[] = 'No write permission for PHP user '
. get_current_user()
. ' in '
. absolute_to_relative($v)
. ' directory. Chevereto needs to be able to write in this directory.';
}
}
}
dieChecksErrors($errors);
}
function phpCheck(SystemConfig $systemConfig): void
{
$errors = [];
$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, '8.0.0', '<')) {
$errors[] = 'This server is currently running PHP version '
. PHP_VERSION
. ' and Chevereto needs at least PHP 8.0.0 to run.';
}
if (ini_get('allow_url_fopen') !== '1' && ! function_exists('curl_init')) {
$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())
) {
$errors[] = 'Apache mod_rewrite is not enabled in this server. This must be enabled to run Chevereto.';
}
$extensionsRequired = [
'exif' => [
'%label' => 'Exif',
'%name' => 'Exchangeable image information',
'%slug' => 'book.exif',
'%desc' => 'Exif is required to handle image metadata',
],
'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',
],
'fileinfo' => [
'%label' => 'fileinfo',
'%name' => 'Fileinfo',
'%slug' => 'book.fileinfo',
'%desc' => 'Fileinfo is required for file handling',
],
];
$php_image = [
'imagick' => [
'%label' => 'imagick',
'%name' => 'Imagick',
'%slug' => 'book.imagick',
'%desc' => 'Imagick is needed for image processing',
],
'gd' => [
'%label' => 'gd',
'%name' => 'gd',
'%slug' => 'book.gd',
'%desc' => 'GD is needed for image processing',
],
];
$imageLibs = [
'gd' => extension_loaded('gd') && function_exists('gd_info'),
'imagick' => extension_loaded('imagick'),
];
$systemConfigLib = $systemConfig->imageLibrary();
if ($systemConfigLib === '') {
$errors[] = 'No image handling library in this server. Enable either Imagick extension or GD extension to perform image processing.';
} else {
$extensionsRequired[$systemConfigLib] = $php_image[$systemConfigLib] ?? [];
}
if (($imageLibs[$systemConfigLib] ?? null) === false) {
$errors[] = 'Configured image_library ' . $systemConfigLib . ' is not present in this system.';
}
foreach ($extensionsRequired as $k => $v) {
if (! extension_loaded($k)) {
$errors[] = strtr('%name (%label) is not loaded in this server. %desc.', $v);
}
}
$disabled_functions = explode(',', preg_replace('/\s+/', '', ini_get('disable_functions')));
$required_functions = ['putenv'];
if ($disabled_functions !== []) {
foreach ($required_functions as $v) {
if (! function_exists($v) || in_array($v, $disabled_functions)) {
$errors[] = strtr(str_replace('%t', 'function', $missing_tpl), [
'%n' => $v,
'%f' => $v,
'%u' => str_replace('_', '-', strtolower($v)),
]);
}
}
}
$disabled_classes = explode(',', preg_replace('/\s+/', '', ini_get('disable_classes')));
$required_classes = ['DirectoryIterator', 'RegexIterator', 'Pdo', 'Exception'];
if ($disabled_classes !== []) {
foreach ($required_classes as $v) {
if (in_array($v, $disabled_classes)) {
$errors[] = strtr(str_replace('%t', 'class', $missing_tpl), [
'%n' => $v,
'%f' => $v,
'%u' => str_replace('_', '-', strtolower($v)),
]);
}
}
}
dieChecksErrors($errors);
}
function dieChecksErrors(array $errors): void
{
if ($errors === []) {
return;
}
if (PHP_SAPI === 'cli') {
vdd($errors);
}
chevereto_die($errors);
}