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Viewing file:     test.js (4.44 KB)      -rw-r--r--

/**
 * Module dependencies.
 */

const fs = require('fs');
const net = require('net');
const path = require('path');
const http = require('http');
const https = require('https');
const assert = require('assert');
const setup = require('../');

describe('proxy', function() {
	var proxy;
	var proxyPort;

	var server;
	var serverPort;

	before(function(done) {
		// setup proxy server
		proxy = setup(http.createServer());
		proxy.listen(function() {
			proxyPort = proxy.address().port;
			done();
		});
	});

	before(function(done) {
		// setup target server
		server = http.createServer();
		server.listen(function() {
			serverPort = server.address().port;
			done();
		});
	});

	after(function(done) {
		proxy.once('close', function() {
			done();
		});
		proxy.close();
	});

	after(function(done) {
		server.once('close', function() {
			done();
		});
		server.close();
	});

	it('should proxy HTTP GET requests', function(done) {
		var gotData = false;
		var gotRequest = false;
		var host = '127.0.0.1:' + serverPort;
		server.once('request', function(req, res) {
			gotRequest = true;
			// ensure headers are being proxied
			assert(req.headers['user-agent'] == 'curl/7.30.0');
			assert(req.headers.host == host);
			assert(req.headers.accept == '*/*');
			res.end();
		});

		var socket = net.connect({ port: proxyPort });
		socket.once('close', function() {
			assert(gotData);
			assert(gotRequest);
			done();
		});
		socket.once('connect', function() {
			socket.write(
				'GET http://' +
					host +
					'/ HTTP/1.1\r\n' +
					'User-Agent: curl/7.30.0\r\n' +
					'Host: ' +
					host +
					'\r\n' +
					'Accept: */*\r\n' +
					'Proxy-Connection: Keep-Alive\r\n' +
					'\r\n'
			);
		});
		socket.setEncoding('utf8');
		socket.once('data', function(data) {
			assert(0 == data.indexOf('HTTP/1.1 200 OK\r\n'));
			gotData = true;
			socket.destroy();
		});
	});

	it('should establish connection for CONNECT requests', function(done) {
		var gotData = false;
		var socket = net.connect({ port: proxyPort });
		socket.once('close', function() {
			assert(gotData);
			done();
		});
		socket.once('connect', function() {
			var host = '127.0.0.1:' + serverPort;
			socket.write(
				'CONNECT ' +
					host +
					' HTTP/1.1\r\n' +
					'Host: ' +
					host +
					'\r\n' +
					'User-Agent: curl/7.30.0\r\n' +
					'Proxy-Connection: Keep-Alive\r\n' +
					'\r\n'
			);
		});
		socket.setEncoding('utf8');
		socket.once('data', function(data) {
			assert(
				0 == data.indexOf('HTTP/1.1 200 Connection established\r\n')
			);
			gotData = true;
			socket.destroy();
		});
	});

	describe('authentication', function() {
		function clearAuth() {
			delete proxy.authenticate;
		}

		before(clearAuth);
		after(clearAuth);

		it('should invoke the `server.authenticate()` function when set', function(done) {
			var auth = 'Basic Zm9vOmJhcg==';
			var called = false;
			proxy.authenticate = function(req, fn) {
				assert(auth == req.headers['proxy-authorization']);
				socket.destroy();
				called = true;
			};
			var socket = net.connect({ port: proxyPort });
			socket.once('close', function() {
				assert(called);
				done();
			});
			socket.once('connect', function() {
				socket.write(
					'GET / HTTP/1.1\r\n' +
						'Proxy-Authorization: ' +
						auth +
						'\r\n' +
						'\r\n'
				);
			});
		});

		it('should provide the HTTP client with a 407 response status code', function(done) {
			proxy.authenticate = function(req, fn) {
				// reject everything
				fn(null, false);
			};
			var gotData = false;
			var socket = net.connect({ port: proxyPort });
			socket.once('close', function() {
				assert(gotData);
				done();
			});
			socket.once('connect', function() {
				socket.write('GET / HTTP/1.1\r\n\r\n');
			});
			socket.setEncoding('utf8');
			socket.once('data', function(data) {
				assert(0 == data.indexOf('HTTP/1.1 407'));
				gotData = true;
				socket.destroy();
			});
		});

		it("should close the socket after a CONNECT request's 407 response status code", function(done) {
			proxy.authenticate = function(req, fn) {
				// reject everything
				fn(null, false);
			};
			var gotData = false;
			var socket = net.connect({ port: proxyPort });
			socket.once('close', function() {
				assert(gotData);
				done();
			});
			socket.once('connect', function() {
				socket.write('CONNECT 127.0.0.1:80 HTTP/1.1\r\n\r\n');
			});
			socket.setEncoding('utf8');
			socket.once('data', function(data) {
				assert(0 == data.indexOf('HTTP/1.1 407'));
				gotData = true;
			});
		});
	});
});