text: var tls = require('tls');
  var inherits = require('util').inherits;
  var EventEmitter = require('events').EventEmitter;
  var SocksClient = require('./socks-client.js');
  
  function SocksAgent(options, secure, rejectUnauthorized) {
      this.options = options;
      this.secure = secure || false;
      this.rejectUnauthorized = rejectUnauthorized;
  
      if (this.rejectUnauthorized === undefined) {
          this.rejectUnauthorized = true;
      }
  }
  
  inherits(SocksAgent, EventEmitter);
  
  SocksAgent.prototype.createConnection = function(req, opts, fn) {
      var handler = fn, host, self = this;
  
      this.options.target = this.options.target || {};
  
      if (!this.options.target.host) {
          this.options.target.host = opts.host;
      }
  
      if (!this.options.target.port) {
          this.options.target.port = opts.port;
      }
  
      host = this.options.target.host;
  
      if (this.secure) {
          handler = function(err, socket, info) {
              var options, cleartext;
  
              if (err) {
                  return fn(err);
              }
  
              // save encrypted socket
              self.encryptedSocket = socket;
  
              options = {
                  socket: socket,
                  servername: host,
                  rejectUnauthorized: self.rejectUnauthorized
              };
  
              cleartext = tls.connect(options, function (err) {
                  return fn(err, this);
              });
              cleartext.on('error', fn);
  
              socket.resume();
          }
      }
  
      SocksClient.createConnection(this.options, handler);
  };
  
  /**
   * @see https://www.npmjs.com/package/agent-base
   */
  SocksAgent.prototype.addRequest = function(req, host, port, localAddress) {
      var opts;
      if ('object' === typeof host) {
          // >= v0.11.x API
          opts = host;
          if (opts.host && opts.path) {
              // if both a `host` and `path` are specified then it's most likely the
              // result of a `url.parse()` call... we need to remove the `path` portion so
              // that `net.connect()` doesn't attempt to open that as a unix socket file.
              delete opts.path;
          }
      } else {
          // <= v0.10.x API
          opts = { host: host, port: port };
          if (null !== localAddress) {
              opts.localAddress = localAddress;
          }
      }
  
      var sync = true;
  
      this.createConnection(req, opts, function (err, socket) {
          function emitErr () {
              req.emit('error', err);
          }
          if (err) {
              if (sync) {
                  // need to defer the "error" event, when sync, because by now the `req`
                  // instance hasn't event been passed back to the user yet...
                  process.nextTick(emitErr);
              } else {
                  emitErr();
              }
          } else {
              req.onSocket(socket);
              //have to resume this socket when node 12
              socket.resume();
          }
      });
  
      sync = false;
  };
  
  exports.Agent = SocksAgent;
  