/**
 * TCP Server Configuration Constants
 */
export declare const DEFAULT_TCP_PORT = 27019;
export declare const MAX_MESSAGE_SIZE: number;
export declare const MAX_CONNECTIONS = 1000;
export declare const MAX_CONNECTIONS_PER_IP = 100;
export declare const CONNECTION_TIMEOUT = 60000;
/**
 * Per-IP connection-*attempt* rate limiting - complements MAX_CONNECTIONS_PER_IP, which only
 * bounds concurrent connections and does nothing to stop an attacker who stays under that cap
 * while hammering the server with rapid connect-then-drop churn (each attempt still costs a
 * TCP handshake + accept/reject cycle). Same sliding-window + cooldown shape as the login rate
 * limiter (LOGIN_RATE_LIMIT_* in config/Keys/Permissions.ts), applied to raw connection
 * attempts instead of failed logins. See ConnectionRateLimiter.ts.
 */
export declare const CONNECTION_RATE_LIMIT_MAX_ATTEMPTS = 300;
export declare const CONNECTION_RATE_LIMIT_WINDOW_MS = 10000;
export declare const CONNECTION_RATE_LIMIT_COOLDOWN_MS = 30000;
export declare const CONNECTION_RATE_LIMIT_SWEEP_INTERVAL_MS = 60000;
export declare const DEFAULT_REQUEST_TIMEOUT = 30000;
export declare const HEARTBEAT_INTERVAL = 30000;
export declare const HEARTBEAT_TIMEOUT = 5000;
export declare const MAX_RECONNECT_ATTEMPTS = 10;
export declare const INITIAL_RECONNECT_DELAY = 1000;
export declare const MAX_RECONNECT_DELAY = 30000;
export declare const MESSAGE_LENGTH_BYTES = 4;
export declare const ENCODING = "utf8";
export declare const INITIAL_BUFFER_SIZE = 4096;
export declare const MAX_BUFFER_SIZE: number;
export declare const StatusCode: {
    readonly OK: 200;
    readonly CREATED: 201;
    readonly NO_CONTENT: 204;
    readonly BAD_REQUEST: 400;
    readonly UNAUTHORIZED: 401;
    readonly FORBIDDEN: 403;
    readonly NOT_FOUND: 404;
    readonly CONFLICT: 409;
    readonly PAYLOAD_TOO_LARGE: 413;
    readonly UNPROCESSABLE_ENTITY: 422;
    readonly TOO_MANY_REQUESTS: 429;
    readonly INTERNAL_SERVER_ERROR: 500;
    readonly NOT_IMPLEMENTED: 501;
    readonly SERVICE_UNAVAILABLE: 503;
};
export declare const ErrorMessage: {
    readonly INVALID_MESSAGE_FORMAT: 'Invalid message format';
    readonly MESSAGE_TOO_LARGE: 'Message exceeds maximum size';
    readonly UNKNOWN_COMMAND: 'Unknown command';
    readonly MISSING_REQUIRED_PARAMS: 'Missing required parameters';
    readonly INVALID_CORRELATION_ID: 'Invalid correlation ID';
    readonly CONNECTION_TIMEOUT: 'Connection timeout';
    readonly REQUEST_TIMEOUT: 'Request timeout';
    readonly SERVER_OVERLOAD: 'Server is overloaded';
    readonly TOO_MANY_CONNECTIONS_FROM_IP: 'Too many concurrent connections from this IP address';
    readonly TOO_MANY_CONNECTION_ATTEMPTS: 'Too many connection attempts from this IP address. Try again later.';
    readonly INTERNAL_ERROR: 'Internal server error';
    readonly AUTH_REQUIRED: 'Authentication required. Send an AUTHENTICATE command with username and password.';
    readonly INVALID_CREDENTIALS: 'Invalid username or password';
    readonly INSUFFICIENT_PERMISSIONS: 'Insufficient permissions for this operation';
    readonly RESERVED_DATABASE: 'This is a reserved system database';
    readonly TOO_MANY_LOGIN_ATTEMPTS: 'Too many failed login attempts. Try again later.';
    readonly PASSWORD_CHANGE_REQUIRED: 'This account must change its password before it can be used over TCP. Log into the Control Server GUI to change the password, or authenticate with a different account that has already completed its password change.';
};
export declare const SuccessMessage: {
    readonly PING_PONG: 'PONG';
    readonly DISCONNECTED: 'Successfully disconnected';
    readonly DB_CREATED: 'Database created successfully';
    readonly DB_DELETED: 'Database deleted successfully';
    readonly COLLECTION_CREATED: 'Collection created successfully';
    readonly COLLECTION_DELETED: 'Collection deleted successfully';
    readonly DOCUMENT_INSERTED: 'Document inserted successfully';
    readonly DOCUMENTS_INSERTED: 'Documents inserted successfully';
    readonly DOCUMENT_UPDATED: 'Document updated successfully';
    readonly DOCUMENTS_UPDATED: 'Documents updated successfully';
    readonly DOCUMENT_DELETED: 'Document deleted successfully';
    readonly DOCUMENTS_DELETED: 'Documents deleted successfully';
    readonly INDEX_CREATED: 'Index created successfully';
    readonly INDEX_DROPPED: 'Index dropped successfully';
    readonly AUTHENTICATED: 'Authenticated successfully';
};