mirror of
https://github.com/RSS-Bridge/rss-bridge.git
synced 2024-12-18 17:10:29 +03:00
231 lines
8.5 KiB
PHP
231 lines
8.5 KiB
PHP
<?php
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/**
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* Configuration module for RSS-Bridge.
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*
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* This class implements a configuration module for RSS-Bridge.
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*/
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final class Configuration
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{
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private const VERSION = '2024-02-02';
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private static $config = [];
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private function __construct()
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{
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}
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public static function checkInstallation(): array
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{
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$errors = [];
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// OpenSSL: https://www.php.net/manual/en/book.openssl.php
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if (!extension_loaded('openssl')) {
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$errors[] = 'openssl extension not loaded';
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}
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// libxml: https://www.php.net/manual/en/book.libxml.php
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if (!extension_loaded('libxml')) {
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$errors[] = 'libxml extension not loaded';
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}
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// Multibyte String (mbstring): https://www.php.net/manual/en/book.mbstring.php
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if (!extension_loaded('mbstring')) {
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$errors[] = 'mbstring extension not loaded';
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}
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// SimpleXML: https://www.php.net/manual/en/book.simplexml.php
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if (!extension_loaded('simplexml')) {
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$errors[] = 'simplexml extension not loaded';
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}
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// Client URL Library (curl): https://www.php.net/manual/en/book.curl.php
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// Allow RSS-Bridge to run without curl module in CLI mode without root certificates
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if (!extension_loaded('curl') && !(php_sapi_name() === 'cli' && empty(ini_get('curl.cainfo')))) {
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$errors[] = 'curl extension not loaded';
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}
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// JavaScript Object Notation (json): https://www.php.net/manual/en/book.json.php
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if (!extension_loaded('json')) {
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$errors[] = 'json extension not loaded';
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}
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return $errors;
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}
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public static function loadConfiguration(array $customConfig = [], array $env = [])
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{
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if (!file_exists(__DIR__ . '/../config.default.ini.php')) {
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throw new \Exception('The default configuration file is missing');
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}
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$config = parse_ini_file(__DIR__ . '/../config.default.ini.php', true, INI_SCANNER_TYPED);
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if (!$config) {
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throw new \Exception('Error parsing ini config');
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}
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foreach ($config as $header => $section) {
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foreach ($section as $key => $value) {
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self::setConfig($header, $key, $value);
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}
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}
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foreach ($customConfig as $header => $section) {
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foreach ($section as $key => $value) {
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self::setConfig($header, $key, $value);
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}
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}
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if (file_exists(__DIR__ . '/../DEBUG')) {
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// The debug mode has been moved to config. Preserve existing installs which has this DEBUG file.
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self::setConfig('system', 'enable_debug_mode', true);
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$debug = trim(file_get_contents(__DIR__ . '/../DEBUG'));
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if ($debug) {
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self::setConfig('system', 'debug_mode_whitelist', explode("\n", str_replace("\r", '', $debug)));
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}
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}
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if (file_exists(__DIR__ . '/../whitelist.txt')) {
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$enabledBridges = trim(file_get_contents(__DIR__ . '/../whitelist.txt'));
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if ($enabledBridges === '*') {
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self::setConfig('system', 'enabled_bridges', ['*']);
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} else {
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self::setConfig('system', 'enabled_bridges', array_filter(array_map('trim', explode("\n", $enabledBridges))));
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}
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}
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foreach ($env as $envName => $envValue) {
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$nameParts = explode('_', $envName);
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if ($nameParts[0] === 'RSSBRIDGE') {
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if (count($nameParts) < 3) {
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// Invalid env name
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continue;
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}
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// The variable is named $header but it's actually the section in config.ini.php
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$header = $nameParts[1];
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// Recombine the key if it had multiple underscores
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$key = implode('_', array_slice($nameParts, 2));
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$key = strtolower($key);
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// Handle this specifically because it's an array
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if ($key === 'enabled_bridges') {
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$envValue = explode(',', $envValue);
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$envValue = array_map('trim', $envValue);
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}
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if ($envValue === 'true' || $envValue === 'false') {
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$envValue = filter_var($envValue, FILTER_VALIDATE_BOOLEAN);
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}
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self::setConfig($header, $key, $envValue);
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}
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}
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if (!is_array(self::getConfig('system', 'enabled_bridges'))) {
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self::throwConfigError('system', 'enabled_bridges', 'Is not an array');
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}
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if (
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!is_string(self::getConfig('system', 'timezone'))
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|| !in_array(self::getConfig('system', 'timezone'), timezone_identifiers_list(DateTimeZone::ALL_WITH_BC))
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) {
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self::throwConfigError('system', 'timezone');
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}
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if (!is_bool(self::getConfig('system', 'enable_debug_mode'))) {
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self::throwConfigError('system', 'enable_debug_mode', 'Is not a valid Boolean');
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}
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if (!is_array(self::getConfig('system', 'debug_mode_whitelist') ?: [])) {
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self::throwConfigError('system', 'debug_mode_whitelist', 'Is not a valid array');
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}
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if (!is_string(self::getConfig('proxy', 'url'))) {
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self::throwConfigError('proxy', 'url', 'Is not a valid string');
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}
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if (!is_bool(self::getConfig('proxy', 'by_bridge'))) {
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self::throwConfigError('proxy', 'by_bridge', 'Is not a valid Boolean');
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}
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if (!is_string(self::getConfig('proxy', 'name'))) {
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/** Name of the proxy server */
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self::throwConfigError('proxy', 'name', 'Is not a valid string');
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}
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if (!is_string(self::getConfig('cache', 'type'))) {
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self::throwConfigError('cache', 'type', 'Is not a valid string');
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}
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if (!is_bool(self::getConfig('cache', 'custom_timeout'))) {
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self::throwConfigError('cache', 'custom_timeout', 'Is not a valid Boolean');
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}
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if (!is_bool(self::getConfig('authentication', 'enable'))) {
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self::throwConfigError('authentication', 'enable', 'Is not a valid Boolean');
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}
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if (!is_string(self::getConfig('authentication', 'username'))) {
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self::throwConfigError('authentication', 'username', 'Is not a valid string');
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}
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if (!is_string(self::getConfig('authentication', 'password'))) {
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self::throwConfigError('authentication', 'password', 'Is not a valid string');
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}
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if (
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!empty(self::getConfig('admin', 'email'))
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&& !filter_var(self::getConfig('admin', 'email'), FILTER_VALIDATE_EMAIL)
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) {
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self::throwConfigError('admin', 'email', 'Is not a valid email address');
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}
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if (!is_bool(self::getConfig('admin', 'donations'))) {
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self::throwConfigError('admin', 'donations', 'Is not a valid Boolean');
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}
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if (!is_string(self::getConfig('error', 'output'))) {
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self::throwConfigError('error', 'output', 'Is not a valid String');
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}
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if (!in_array(self::getConfig('error', 'output'), ['feed', 'http', 'none'])) {
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self::throwConfigError('error', 'output', 'Invalid output');
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}
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if (
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!is_numeric(self::getConfig('error', 'report_limit'))
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|| self::getConfig('error', 'report_limit') < 1
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) {
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self::throwConfigError('admin', 'report_limit', 'Value is invalid');
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}
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}
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public static function getConfig(string $section, string $key, $default = null)
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{
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return self::$config[strtolower($section)][strtolower($key)] ?? $default;
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}
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private static function setConfig(string $section, string $key, $value): void
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{
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self::$config[strtolower($section)][strtolower($key)] = $value;
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}
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public static function getVersion()
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{
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$headFile = __DIR__ . '/../.git/HEAD';
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if (@is_readable($headFile)) {
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$revisionHashFile = '.git/' . substr(file_get_contents($headFile), 5, -1);
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$parts = explode('/', $revisionHashFile);
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if (isset($parts[3])) {
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$branchName = $parts[3];
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if (file_exists($revisionHashFile)) {
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return sprintf('%s (git.%s.%s)', self::VERSION, $branchName, substr(file_get_contents($revisionHashFile), 0, 7));
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}
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}
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}
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return self::VERSION;
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}
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private static function throwConfigError($section, $key, $message = '')
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{
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throw new \Exception("Config [$section] => [$key] is invalid. $message");
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}
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}
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