92 lines
2.2 KiB
TypeScript
92 lines
2.2 KiB
TypeScript
import { HttpsProxyAgent, HttpsProxyAgentOptions } from "https-proxy-agent";
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import { SocksProxyAgent, SocksProxyAgentOptions } from "socks-proxy-agent";
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export type ProxyConfig = {
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host: string;
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port: number;
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auth?: {
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username: string;
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password: string;
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};
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protocol:
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| "http"
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| "https"
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| "socks4"
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| "socks4a"
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| "socks5"
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| "socks5h"
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| "socks";
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};
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class ProxyProtocolError extends Error {}
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const proxyAgent = (
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proxyConfig: ProxyConfig,
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): HttpsProxyAgent | SocksProxyAgent => {
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switch (proxyConfig.protocol) {
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case "http": {
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let options: HttpsProxyAgentOptions = {
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host: proxyConfig.host,
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port: proxyConfig.port,
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secureProxy: false,
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};
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if (proxyConfig.auth) {
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options = Object.assign(options, {
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auth: `${proxyConfig.auth.username}:${proxyConfig.auth.password}`,
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});
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}
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const httpsAgent = new HttpsProxyAgent(options);
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return httpsAgent;
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}
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case "https": {
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let options: HttpsProxyAgentOptions = {
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host: proxyConfig.host,
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port: proxyConfig.port,
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secureProxy: true,
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};
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if (proxyConfig.auth) {
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options = Object.assign(options, {
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auth: `${proxyConfig.auth.username}:${proxyConfig.auth.password}`,
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});
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}
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const httpsAgent = new HttpsProxyAgent(options);
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return httpsAgent;
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}
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case "socks4":
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case "socks4a": {
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let options: SocksProxyAgentOptions = {
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type: 4,
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hostname: proxyConfig.host,
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port: proxyConfig.port,
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};
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if (proxyConfig.auth) {
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options = Object.assign(options, {
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userId: proxyConfig.auth.username,
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password: proxyConfig.auth.password,
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});
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}
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const socksAgent = new SocksProxyAgent(options);
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return socksAgent;
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}
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case "socks5":
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case "socks5h":
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case "socks": {
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let options: SocksProxyAgentOptions = {
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type: 5,
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hostname: proxyConfig.host,
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port: proxyConfig.port,
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};
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if (proxyConfig.auth) {
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options = Object.assign(options, {
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userId: proxyConfig.auth.username,
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password: proxyConfig.auth.password,
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});
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}
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const socksAgent = new SocksProxyAgent(options);
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return socksAgent;
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}
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default:
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throw new ProxyProtocolError("protocol is not accepted");
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}
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};
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export default proxyAgent;
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