84 lines
2.3 KiB
TypeScript
84 lines
2.3 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: 'http' | 'https' | 'socks4' | 'socks4a' | 'socks5' | 'socks5h' | 'socks'
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}
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class ProxyProtocolError extends Error {}
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const proxyAgent = (proxyConfig: ProxyConfig): 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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