import type { AxiosRequestConfig, AxiosResponse } from 'axios';
import FormData from 'form-data';
import type { AgentOptions } from 'https';
import { type IHttpRequestOptions, type IRequestOptions, type IgnoreStatusErrorConfig } from 'n8n-workflow';
import type { SsrfBridge } from '../../ssrf';
import type { ProxyOption, SsrfOption } from '../node-agents';
export declare function throwIfDomainNotAllowed(configOrUrl: AxiosRequestConfig | string, allowedDomains?: string): void;
export declare function tryParseUrl(url: string): URL | null;
export declare function isIgnoreStatusErrorConfig(ignoreHttpStatusErrors: unknown): ignoreHttpStatusErrors is IgnoreStatusErrorConfig;
export declare function searchForHeader(config: AxiosRequestConfig, headerName: string): string | undefined;
export declare function sniFor(host: string | null | undefined): string | undefined;
export declare const getHostFromRequestObject: (requestObject: Partial<{
    url: string;
    uri: string;
    baseURL: string;
}>) => string | null;
export declare function resolveProxyOption(customProxyUrl: string | null): ProxyOption;
export declare const getBeforeRedirectFn: (agentOptions: AgentOptions, axiosConfig: AxiosRequestConfig, proxyConfig: IHttpRequestOptions['proxy'] | string | undefined, sendCredentialsOnCrossOriginRedirect: boolean, allowedDomains?: string, ssrf?: SsrfOption) => (redirectedRequest: Record<string, any>) => void;
export declare function digestAuthAxiosConfig(axiosConfig: AxiosRequestConfig, response: AxiosResponse, auth: AxiosRequestConfig['auth']): AxiosRequestConfig;
export declare const createFormDataObject: (data: Record<string, unknown>) => FormData;
export declare function isFormDataInstance(data: unknown): data is FormData;
export declare function buildAgentOptions(n8nRequest: IHttpRequestOptions): AgentOptions;
export declare function isRedirectStatus(status: number): boolean;
export declare function getRedirectLocation(response: AxiosResponse): string | undefined;
export declare function isProxyPotentiallyActive(proxyConfig?: IHttpRequestOptions['proxy'] | string): boolean;
export declare function generateContentLengthHeader(config: AxiosRequestConfig): Promise<void>;
export declare function getUrlFromProxyConfig(proxyConfig: IHttpRequestOptions['proxy'] | string | undefined | null): string | null;
export declare function buildTargetUrl(url?: string, baseURL?: string): string | undefined;
export declare function setAxiosAgents(config: AxiosRequestConfig, agentOptions?: AgentOptions, proxyConfig?: IHttpRequestOptions['proxy'] | string, ssrf?: SsrfOption): void;
export declare function validateUrlSsrf(url: string | undefined, ssrfBridge?: SsrfBridge): Promise<void>;
export declare function validateProxySsrf(proxyConfig: IHttpRequestOptions['proxy'] | string | undefined, ssrfBridge?: SsrfBridge): Promise<void>;
export declare function resolveLegacyRequestTarget(requestObject: IRequestOptions): string | undefined;
export declare function resolveLegacyRequestUrl(requestObject: IRequestOptions): string | undefined;