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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace BO\Zmscitizenapi; |
| 6 | |
| 7 | use BO\Slim\Traits\CacheInitializationTrait; |
| 8 | use Psr\SimpleCache\CacheInterface; |
| 9 | |
| 10 | /** |
| 11 | * @SuppressWarnings(PHPMD.TooManyFields) |
| 12 | * @SuppressWarnings(PHPMD.NPathComplexity) |
| 13 | * @TODO: Refactor this class into smaller focused classes (LoggerInitializer, MiddlewareInitializer) to reduce complexity |
| 14 | */ |
| 15 | class Application extends \BO\Slim\Application |
| 16 | { |
| 17 | use CacheInitializationTrait; |
| 18 | |
| 19 | public const string IDENTIFIER = 'zms'; |
| 20 | public const string MODULE_NAME = 'zmscitizenapi'; |
| 21 | public static string $source_name = "dldb,zms"; |
| 22 | public static $http = null; |
| 23 | public static array $http_curl_config = []; |
| 24 | public static ?CacheInterface $cache = null; |
| 25 | // Cache config |
| 26 | public static string $CACHE_DIR; |
| 27 | public static int $SOURCE_CACHE_TTL; |
| 28 | public static bool $MAINTENANCE_MODE_ENABLED; |
| 29 | // Logger config |
| 30 | |
| 31 | public static int $LOGGER_MAX_REQUESTS; |
| 32 | public static int $LOGGER_MAX_ERROR_REQUESTS; |
| 33 | public static int $LOGGER_RESPONSE_LENGTH; |
| 34 | public static int $LOGGER_STACK_LINES; |
| 35 | public static int $LOGGER_MESSAGE_SIZE; |
| 36 | public static int $LOGGER_CACHE_TTL; |
| 37 | public static int $LOGGER_MAX_RETRIES; |
| 38 | public static int $LOGGER_BACKOFF_MIN; |
| 39 | public static int $LOGGER_BACKOFF_MAX; |
| 40 | public static int $LOGGER_LOCK_TIMEOUT; |
| 41 | // Captcha config |
| 42 | public static bool $CAPTCHA_ENABLED; |
| 43 | public static string $CAPTCHA_TOKEN_SECRET; |
| 44 | public static int $CAPTCHA_TOKEN_TTL; |
| 45 | public static string $ALTCHA_CAPTCHA_SITE_KEY; |
| 46 | public static string $ALTCHA_CAPTCHA_SITE_SECRET; |
| 47 | public static string $ALTCHA_CAPTCHA_ENDPOINT_CHALLENGE; |
| 48 | public static string $ALTCHA_CAPTCHA_ENDPOINT_VERIFY; |
| 49 | // Rate limiting config |
| 50 | public static int $RATE_LIMIT_MAX_REQUESTS; |
| 51 | public static int $RATE_LIMIT_CACHE_TTL; |
| 52 | public static int $RATE_LIMIT_MAX_RETRIES; |
| 53 | public static int $RATE_LIMIT_BACKOFF_MIN; |
| 54 | public static int $RATE_LIMIT_BACKOFF_MAX; |
| 55 | public static int $RATE_LIMIT_LOCK_TIMEOUT; |
| 56 | // Request limits config |
| 57 | public static int $MAX_REQUEST_SIZE; |
| 58 | public static int $MAX_STRING_LENGTH; |
| 59 | public static int $MAX_RECURSION_DEPTH; |
| 60 | // IP Filter config |
| 61 | public static string $IP_BLACKLIST; |
| 62 | |
| 63 | public static string $ACCESS_UNPUBLISHED_ON_DOMAIN; |
| 64 | |
| 65 | public const string DEFAULT_PLACEHOLDER_EMAIL = 'noreply-terminvereinbarung@muenchen.de'; |
| 66 | public static string $PLACEHOLDER_EMAIL = self::DEFAULT_PLACEHOLDER_EMAIL; |
| 67 | |
| 68 | public static function initialize(): void |
| 69 | { |
| 70 | self::initializeMaintenanceMode(); |
| 71 | self::initializeSource(); |
| 72 | self::initializePlaceholderEmail(); |
| 73 | self::initializeLogger(); |
| 74 | self::initializeCaptcha(); |
| 75 | self::initializeCache(__DIR__ . '/cache'); |
| 76 | self::initializeMiddleware(); |
| 77 | } |
| 78 | |
| 79 | private static function initializeMaintenanceMode(): void |
| 80 | { |
| 81 | self::$MAINTENANCE_MODE_ENABLED = filter_var(getenv('MAINTENANCE_ENABLED'), FILTER_VALIDATE_BOOLEAN); |
| 82 | } |
| 83 | |
| 84 | private static function initializeSource(): void |
| 85 | { |
| 86 | $fromEnv = getenv('SOURCE_NAME'); |
| 87 | if (is_string($fromEnv) && trim($fromEnv) !== '') { |
| 88 | self::$source_name = trim($fromEnv); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | private static function initializePlaceholderEmail(): void |
| 93 | { |
| 94 | self::$PLACEHOLDER_EMAIL = self::getenvString( |
| 95 | 'ZMS_CITIZENAPI_PLACEHOLDER_EMAIL', |
| 96 | self::DEFAULT_PLACEHOLDER_EMAIL |
| 97 | ); |
| 98 | } |
| 99 | |
| 100 | public static function getPlaceholderEmail(): string |
| 101 | { |
| 102 | return self::$PLACEHOLDER_EMAIL !== '' |
| 103 | ? self::$PLACEHOLDER_EMAIL |
| 104 | : self::DEFAULT_PLACEHOLDER_EMAIL; |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * @SuppressWarnings(PHPMD.NPathComplexity) |
| 109 | * @TODO: Extract logger initialization logic into a dedicated LoggerInitializer class |
| 110 | */ |
| 111 | private static function initializeLogger(): void |
| 112 | { |
| 113 | self::$LOGGER_MAX_REQUESTS = self::getenvInt('ZMS_CITIZENAPI_LOGGER_MAX_REQUESTS', 1000); |
| 114 | self::$LOGGER_MAX_ERROR_REQUESTS = self::getenvInt('ZMS_CITIZENAPI_LOGGER_MAX_ERROR_REQUESTS', 0); |
| 115 | self::$LOGGER_RESPONSE_LENGTH = self::getenvInt('ZMS_CITIZENAPI_LOGGER_RESPONSE_LENGTH', 1048576); |
| 116 | // 1MB |
| 117 | self::$LOGGER_STACK_LINES = self::getenvInt('ZMS_CITIZENAPI_LOGGER_STACK_LINES', 20); |
| 118 | self::$LOGGER_MESSAGE_SIZE = self::getenvInt('ZMS_CITIZENAPI_LOGGER_MESSAGE_SIZE', 8192); |
| 119 | // 8KB |
| 120 | self::$LOGGER_CACHE_TTL = self::getenvInt('ZMS_CITIZENAPI_LOGGER_CACHE_TTL', 60); |
| 121 | self::$LOGGER_MAX_RETRIES = self::getenvInt('ZMS_CITIZENAPI_LOGGER_MAX_RETRIES', 3); |
| 122 | self::$LOGGER_BACKOFF_MIN = self::getenvInt('ZMS_CITIZENAPI_LOGGER_BACKOFF_MIN', 100); |
| 123 | self::$LOGGER_BACKOFF_MAX = self::getenvInt('ZMS_CITIZENAPI_LOGGER_BACKOFF_MAX', 1000); |
| 124 | self::$LOGGER_LOCK_TIMEOUT = self::getenvInt('ZMS_CITIZENAPI_LOGGER_LOCK_TIMEOUT', 5); |
| 125 | \BO\Slim\LoggerService::configure(self::getLoggerConfig()); |
| 126 | } |
| 127 | |
| 128 | private static function initializeCaptcha(): void |
| 129 | { |
| 130 | self::$CAPTCHA_ENABLED = filter_var(getenv('CAPTCHA_ENABLED'), FILTER_VALIDATE_BOOLEAN); |
| 131 | self::$CAPTCHA_TOKEN_SECRET = self::getenvString('CAPTCHA_TOKEN_SECRET', ''); |
| 132 | $captchaTtl = self::getenvInt('CAPTCHA_TOKEN_TTL', 0); |
| 133 | self::$CAPTCHA_TOKEN_TTL = $captchaTtl === 0 ? 300 : $captchaTtl; |
| 134 | self::$ALTCHA_CAPTCHA_SITE_KEY = self::getenvString('ALTCHA_CAPTCHA_SITE_KEY', ''); |
| 135 | self::$ALTCHA_CAPTCHA_SITE_SECRET = self::getenvString('ALTCHA_CAPTCHA_SITE_SECRET', ''); |
| 136 | self::$ALTCHA_CAPTCHA_ENDPOINT_CHALLENGE = self::getenvString( |
| 137 | 'ALTCHA_CAPTCHA_ENDPOINT_CHALLENGE', |
| 138 | 'https://captcha.muenchen.de/api/v1/captcha/challenge' |
| 139 | ); |
| 140 | self::$ALTCHA_CAPTCHA_ENDPOINT_VERIFY = self::getenvString( |
| 141 | 'ALTCHA_CAPTCHA_ENDPOINT_VERIFY', |
| 142 | 'https://captcha.muenchen.de/api/v1/captcha/verify' |
| 143 | ); |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * @TODO: Extract middleware initialization logic into a dedicated MiddlewareInitializer class |
| 148 | */ |
| 149 | private static function initializeMiddleware(): void |
| 150 | { |
| 151 | // Rate limiting |
| 152 | self::$RATE_LIMIT_MAX_REQUESTS = self::getenvInt('RATE_LIMIT_MAX_REQUESTS', 600); |
| 153 | self::$RATE_LIMIT_CACHE_TTL = self::getenvInt('RATE_LIMIT_CACHE_TTL', 60); |
| 154 | self::$RATE_LIMIT_MAX_RETRIES = self::getenvInt('RATE_LIMIT_MAX_RETRIES', 3); |
| 155 | self::$RATE_LIMIT_BACKOFF_MIN = self::getenvInt('RATE_LIMIT_BACKOFF_MIN', 10); |
| 156 | self::$RATE_LIMIT_BACKOFF_MAX = self::getenvInt('RATE_LIMIT_BACKOFF_MAX', 50); |
| 157 | self::$RATE_LIMIT_LOCK_TIMEOUT = self::getenvInt('RATE_LIMIT_LOCK_TIMEOUT', 1); |
| 158 | // Request limits |
| 159 | self::$MAX_REQUEST_SIZE = self::getenvInt('MAX_REQUEST_SIZE', 10485760); |
| 160 | // 10MB |
| 161 | self::$MAX_STRING_LENGTH = self::getenvInt('MAX_STRING_LENGTH', 32768); |
| 162 | // 32KB |
| 163 | self::$MAX_RECURSION_DEPTH = self::getenvInt('MAX_RECURSION_DEPTH', 10); |
| 164 | // IP Filter |
| 165 | self::$IP_BLACKLIST = self::getenvString('IP_BLACKLIST', ''); |
| 166 | |
| 167 | self::$ACCESS_UNPUBLISHED_ON_DOMAIN = self::getenvString('ACCESS_UNPUBLISHED_ON_DOMAIN', ''); |
| 168 | } |
| 169 | |
| 170 | private static function getenvInt(string $name, int $default): int |
| 171 | { |
| 172 | $value = getenv($name); |
| 173 | return ($value === false || $value === '') ? $default : (int) $value; |
| 174 | } |
| 175 | |
| 176 | private static function getenvString(string $name, string $default): string |
| 177 | { |
| 178 | $value = getenv($name); |
| 179 | return ($value === false || $value === '') ? $default : $value; |
| 180 | } |
| 181 | |
| 182 | /** @psalm-api */ |
| 183 | public static function reinitializeMiddlewareConfig(): void |
| 184 | { |
| 185 | self::initializeMiddleware(); |
| 186 | } |
| 187 | |
| 188 | public static function getLoggerConfig(): array |
| 189 | { |
| 190 | return [ |
| 191 | 'maxRequests' => self::$LOGGER_MAX_REQUESTS, |
| 192 | 'maxErrorRequests' => self::$LOGGER_MAX_ERROR_REQUESTS, |
| 193 | 'responseLength' => self::$LOGGER_RESPONSE_LENGTH, |
| 194 | 'stackLines' => self::$LOGGER_STACK_LINES, |
| 195 | 'messageSize' => self::$LOGGER_MESSAGE_SIZE, |
| 196 | 'cacheTtl' => self::$LOGGER_CACHE_TTL, |
| 197 | 'maxRetries' => self::$LOGGER_MAX_RETRIES, |
| 198 | 'backoffMin' => self::$LOGGER_BACKOFF_MIN, |
| 199 | 'backoffMax' => self::$LOGGER_BACKOFF_MAX, |
| 200 | 'lockTimeout' => self::$LOGGER_LOCK_TIMEOUT |
| 201 | ]; |
| 202 | } |
| 203 | |
| 204 | public static function getRateLimit(): array |
| 205 | { |
| 206 | return [ |
| 207 | 'maxRequests' => self::$RATE_LIMIT_MAX_REQUESTS, |
| 208 | 'cacheExpiry' => self::$RATE_LIMIT_CACHE_TTL, |
| 209 | 'maxRetries' => self::$RATE_LIMIT_MAX_RETRIES, |
| 210 | 'backoffMin' => self::$RATE_LIMIT_BACKOFF_MIN, |
| 211 | 'backoffMax' => self::$RATE_LIMIT_BACKOFF_MAX, |
| 212 | 'lockTimeout' => self::$RATE_LIMIT_LOCK_TIMEOUT |
| 213 | ]; |
| 214 | } |
| 215 | |
| 216 | public static function getRequestLimits(): array |
| 217 | { |
| 218 | return [ |
| 219 | 'maxSize' => self::$MAX_REQUEST_SIZE, |
| 220 | 'maxStringLength' => self::$MAX_STRING_LENGTH, |
| 221 | 'maxRecursionDepth' => self::$MAX_RECURSION_DEPTH |
| 222 | ]; |
| 223 | } |
| 224 | |
| 225 | public static function getIpBlacklist(): string |
| 226 | { |
| 227 | return self::$IP_BLACKLIST ?: ''; |
| 228 | } |
| 229 | |
| 230 | /** @psalm-api */ |
| 231 | public static function getAccessUnpublishedOnDomain(): ?string |
| 232 | { |
| 233 | return self::$ACCESS_UNPUBLISHED_ON_DOMAIN ?: null; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | Application::initialize(); |