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<?php namespace Bitrix\Main\Session; use Bitrix\Main\ArgumentException; use Bitrix\Main\Config\Configuration; use Bitrix\Main\NotSupportedException; use Bitrix\Main\Session\Handlers\AbstractSessionHandler; use Bitrix\Main\Session\Handlers\StrictSessionHandler; final class SessionConfigurationResolver { private const MODE_DEFAULT = 'default'; private const MODE_SEPARATED = 'separated'; public const TYPE_FILE = 'file'; public const TYPE_DATABASE = 'database'; public const TYPE_REDIS = 'redis'; public const TYPE_MEMCACHE = 'memcache'; public const TYPE_ARRAY = 'array'; public const TYPE_NULL = 'null'; public const TYPE_CUSTOM_INI = 'save_handler.php.ini'; /** @var Configuration / private $configuration; /* @var Session / private $session; /* @var KernelSession */ private $kernelSession; public function __construct(Configuration $configuration) { $this->configuration = $configuration; } public function resolve(): void { $sessionConfig = $this->getSessionConfig(); $generalOptions = $sessionConfig['handlers']['general']; $generalHandler = $this->buildSessionHandlerByOptions($generalOptions['type'], $generalOptions); if ($sessionConfig['mode'] === self::MODE_DEFAULT) { $this->session = new Session($generalHandler); $this->kernelSession = new KernelSessionProxy($this->session); } elseif ($sessionConfig['mode'] === self::MODE_SEPARATED) { if (empty($sessionConfig['handlers']['kernel'])) { throw new NotSupportedException('There is no handler for kernel session'); } if (empty($sessionConfig['handlers']['general'])) { throw new NotSupportedException('There is no handler for general session'); } if ($sessionConfig['handlers']['kernel'] !== 'encrypted_cookies') { throw new NotSupportedException('Invalid settings. Kernel session works only with "encrypted_cookies"'); } $this->session = new Session($generalHandler); $this->kernelSession = new KernelSession($sessionConfig['lifetime'] ?? 0); Legacy\LazySessionStart::register(); $this->session->enableLazyStart(); if (!empty($sessionConfig['debug'])) { $this->session->enableDebug(); $debugger = $this->session->getDebugger(); $debugger->setMode($sessionConfig['debug']); $debugger->storeConfig($sessionConfig); } } if (isset($sessionConfig['ignoreSessionStartErrors']) && $sessionConfig['ignoreSessionStartErrors'] === true) { $this->session->enableIgnoringSessionStartErrors(); } } public function getSessionConfig(): array { if (defined("BX_SECURITY_SESSION_VIRTUAL") && BX_SECURITY_SESSION_VIRTUAL === true) { return [ 'mode' => self::MODE_DEFAULT, 'handlers' => [ 'general' => ['type' => self::TYPE_ARRAY] ] ]; } $sessionConfig = $this->configuration::getValue("session") ?: []; $saveHandlerFromIni = ini_get('session.save_handler'); if ((!$sessionConfig \|\| $sessionConfig === ['mode' => self::MODE_DEFAULT]) && $saveHandlerFromIni !== 'files') { //when some specific save_handler was installed and we can't change behavior. return [ 'mode' => self::MODE_DEFAULT, 'handlers' => [ 'general' => ['type' => self::TYPE_CUSTOM_INI] ] ]; } $sessionConfig['mode'] = $sessionConfig['mode'] ?? self::MODE_DEFAULT; $sessionConfig['handlers']['general'] = $this->normalizeSessionOptions($sessionConfig['handlers']['general'] ?? ['type' => self::TYPE_FILE]); if (defined("BX_FORCE_DISABLE_SEPARATED_SESSION_MODE") && BX_FORCE_DISABLE_SEPARATED_SESSION_MODE === true) { $sessionConfig['mode'] = self::MODE_DEFAULT; } return $sessionConfig; } private function buildSessionHandlerByOptions(string $type, array $options = []): ?AbstractSessionHandler { switch ($type) { case self::TYPE_FILE: return new StrictSessionHandler(new Handlers\NativeFileSessionHandler($options)); case self::TYPE_DATABASE: return new Handlers\DatabaseSessionHandler($options); case self::TYPE_REDIS: return new Handlers\RedisSessionHandler($options); case self::TYPE_MEMCACHE: return new Handlers\MemcacheSessionHandler($options); case self::TYPE_ARRAY: case self::TYPE_NULL: return new Handlers\NullSessionHandler(); case self::TYPE_CUSTOM_INI: return null; } throw new NotSupportedException("Unknown session handler {{$type}}"); } private function normalizeSessionOptions($options): array { if (!is_array($options) && is_string($options)) { $options = [ 'type' => $options, ]; } if (is_array($options)) { if (defined('BX_SECURITY_SESSION_READONLY') && BX_SECURITY_SESSION_READONLY) { $options['readOnly'] = true; } return $options; } throw new ArgumentException('Session handler has to have options as array or string.'); } public function getSession(): SessionInterface { return $this->session; } public function getKernelSession(): SessionInterface { return $this->kernelSession; } public function getConfiguration(): Configuration { return $this->configuration; } }

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