import type { WebFetchError } from "./types.js";
import { RequestLoopContext, networkError } from "./issue-hop.js";
export { timeoutError } from "./issue-hop.js";
export { networkError };
export type { DnsLookupFn, HttpRequestFn, HttpsRequestFn, NormalisedArgs } from "./issue-hop.js";
export declare function schemeOf(raw: string): string;
type RequestLoopResult = {
    ok: true;
    lastUrl: string;
    contentType: string | undefined;
    body: string;
    bytesReceived: number;
    truncated: boolean;
    truncatedAt?: number;
} | {
    ok: false;
    lastUrl: string;
    error: WebFetchError;
};
/**
 * Run up to {@link MAX_REDIRECT_HOPS} request hops. Each hop:
 *
 *   - parses the current URL
 *   - re-applies the SSRF pre-check on the hostname literal
 *   - resolves the hostname via {@link DnsLookupFn}, captures `dnsMs`
 *     and the resolved IP
 *   - re-applies the SSRF check on the resolved IP
 *   - builds a pinned-IP `https/http.request` with a custom `lookup`
 *     callback that returns the resolved IP synchronously
 *   - on a 3xx with `Location`, appends a redirect hop and loops
 *   - on a binary content type, returns `binary-content`
 *   - on a 4xx/5xx terminal, reads up to
 *     {@link HTTP_ERROR_BODY_PREVIEW_BYTES} bytes for the preview and
 *     returns `http-error`
 *   - on a 2xx terminal, reads the body up to `maxBytes` and returns
 *     success
 */
export declare function runRequestLoop(ctx: RequestLoopContext): Promise<RequestLoopResult>;