/**
 * HTTP Utilities for Harper's stream-based request/response handling.
 *
 * Shared by MCP middleware, OAuth middleware, and webhook middleware.
 */
import type { HarperRequest } from './types.ts';
/**
 * Read the request body as a string from Harper's stream-based body.
 *
 * Harper's request.body is a RequestBody wrapper with .on()/.pipe() methods,
 * not a parsed object. We need to consume the stream to get the raw text.
 *
 * Enforces a maximum body size to prevent memory exhaustion from oversized requests.
 */
export declare function readBody(request: HarperRequest): Promise<string>;
/**
 * Build Web Standard Headers from Harper's Headers object.
 *
 * Harper's request.headers is a custom Headers class (iterable, with .get()),
 * not a plain Record<string, string>.
 */
export declare function buildHeaders(request: HarperRequest): Headers;
/**
 * Build the base URL (origin) from a Harper request.
 *
 * Uses the request's protocol and host properties. Defaults to
 * http://localhost:9926 if not available.
 */
export declare function getBaseUrl(request: HarperRequest): string;
/**
 * Parse an application/x-www-form-urlencoded body into a key-value map.
 */
export declare function parseFormBody(body: string): Record<string, string>;
/**
 * Get a header value from Harper's request, case-insensitive.
 */
export declare function getHeader(request: HarperRequest, name: string): string;
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