snowflake-sdk/dist/lib/agent/https_proxy_agent.js

Node.js driver for Snowflake

"use strict";
const tls = require('tls');
const { HttpsProxyAgent } = require('https-proxy-agent');
const SocketUtil = require('./socket_util');
const ProxyUtil = require('../proxy_util');
const Logger = require('../logger');
module.exports = createHttpsProxyAgent;
function createHttpsProxyAgent(opts) {
    // HttpsProxyAgent >= 6.x takes two arguments for its constructor
    // See: https://github.com/TooTallNate/proxy-agents/blob/main/packages/https-proxy-agent/CHANGELOG.md#600
    const { host: hostname, port, user: username, password, protocol: rawProtocol, useForOCSP: useForOCSP, noProxy: noProxy, ...agentOptions } = opts;
    const protocol = rawProtocol.endsWith(':') ? rawProtocol : `${rawProtocol}:`;
    return new SnowflakeHttpsProxyAgent({ hostname, port, username, password, protocol, useForOCSP, noProxy }, agentOptions);
}
class SnowflakeHttpsProxyAgent extends HttpsProxyAgent {
    constructor(proxy, opts) {
        super(proxy, opts);
    }
    async connect(req, opts) {
        Logger.getInstance().debug('Using proxy=%s for host %s', this.proxy.hostname, opts.host);
        const socket = await super.connect(req, opts);
        if (socket instanceof tls.TLSSocket) {
            const isProxyRequiredForOCSP = this.proxy.useForOCSP &&
                !ProxyUtil.isByPassProxy(this.proxy, SocketUtil.REGEX_SNOWFLAKE_ENDPOINT);
            SocketUtil.secureSocket(socket, opts.host, isProxyRequiredForOCSP ? this : null);
        }
        return socket;
    }
}
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