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/**
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* Module dependencies.
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*/
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var fs = require('fs');
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var url = require('url');
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var http = require('http');
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var https = require('https');
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var assert = require('assert');
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var Proxy = require('proxy');
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var HttpProxyAgent = require('../');
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describe('HttpProxyAgent', function () {
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var server;
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var serverPort;
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var proxy;
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var proxyPort;
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var sslProxy;
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var sslProxyPort;
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before(function (done) {
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// setup HTTP proxy server
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proxy = Proxy();
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proxy.listen(function () {
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proxyPort = proxy.address().port;
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done();
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});
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});
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before(function (done) {
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// setup target HTTP server
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server = http.createServer();
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server.listen(function () {
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serverPort = server.address().port;
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done();
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});
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});
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before(function (done) {
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// setup SSL HTTP proxy server
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var options = {
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key: fs.readFileSync(__dirname + '/ssl-cert-snakeoil.key'),
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cert: fs.readFileSync(__dirname + '/ssl-cert-snakeoil.pem')
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};
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sslProxy = Proxy(https.createServer(options));
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sslProxy.listen(function () {
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sslProxyPort = sslProxy.address().port;
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done();
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});
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});
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// shut down test HTTP server
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after(function (done) {
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proxy.once('close', function () { done(); });
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proxy.close();
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});
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after(function (done) {
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server.once('close', function () { done(); });
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server.close();
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});
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after(function (done) {
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sslProxy.once('close', function () { done(); });
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sslProxy.close();
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});
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describe('constructor', function () {
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it('should throw an Error if no "proxy" argument is given', function () {
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assert.throws(function () {
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new HttpProxyAgent();
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});
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});
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it('should accept a "string" proxy argument', function () {
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var agent = new HttpProxyAgent('http://127.0.0.1:' + proxyPort);
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assert.equal('127.0.0.1', agent.proxy.host);
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assert.equal(proxyPort, agent.proxy.port);
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});
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it('should accept a `url.parse()` result object argument', function () {
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var opts = url.parse('http://127.0.0.1:' + proxyPort);
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var agent = new HttpProxyAgent(opts);
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assert.equal('127.0.0.1', agent.proxy.host);
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assert.equal(proxyPort, agent.proxy.port);
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});
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describe('secureProxy', function () {
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it('should default to `false`', function () {
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var agent = new HttpProxyAgent({ port: proxyPort });
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assert.equal(false, agent.secureProxy);
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});
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it('should be `false` when "http:" protocol is used', function () {
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var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'http:' });
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assert.equal(false, agent.secureProxy);
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});
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it('should be `true` when "https:" protocol is used', function () {
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var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'https:' });
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assert.equal(true, agent.secureProxy);
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});
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it('should be `true` when "https" protocol is used', function () {
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var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'https' });
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assert.equal(true, agent.secureProxy);
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});
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});
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});
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describe('"http" module', function () {
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it('should work over an HTTP proxy', function (done) {
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// set HTTP "request" event handler for this test
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server.once('request', function (req, res) {
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res.end(JSON.stringify(req.headers));
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});
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var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
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var agent = new HttpProxyAgent(proxy);
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var opts = url.parse('http://127.0.0.1:' + serverPort);
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opts.agent = agent;
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http.get(opts, function (res) {
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var data = '';
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res.setEncoding('utf8');
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res.on('data', function (b) {
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data += b;
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});
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res.on('end', function () {
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data = JSON.parse(data);
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assert.equal('127.0.0.1:' + serverPort, data.host);
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assert('via' in data);
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done();
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});
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});
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});
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it('should work over an HTTPS proxy', function (done) {
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// set HTTP "request" event handler for this test
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server.once('request', function (req, res) {
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res.end(JSON.stringify(req.headers));
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});
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var proxy = process.env.HTTPS_PROXY || process.env.https_proxy || 'https://127.0.0.1:' + sslProxyPort;
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proxy = url.parse(proxy);
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proxy.rejectUnauthorized = false;
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var agent = new HttpProxyAgent(proxy);
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assert.equal(true, agent.secureProxy);
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var opts = url.parse('http://127.0.0.1:' + serverPort);
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opts.agent = agent;
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http.get(opts, function (res) {
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var data = '';
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res.setEncoding('utf8');
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res.on('data', function (b) {
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data += b;
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});
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res.on('end', function () {
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data = JSON.parse(data);
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assert.equal('127.0.0.1:' + serverPort, data.host);
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assert('via' in data);
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done();
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});
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});
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});
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it('should proxy the query string of the request path', function (done) {
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// set HTTP "request" event handler for this test
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server.once('request', function (req, res) {
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res.end(JSON.stringify({
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url: req.url
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}));
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});
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var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
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var agent = new HttpProxyAgent(proxy);
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var opts = url.parse('http://127.0.0.1:' + serverPort + '/test?foo=bar&1=2');
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opts.agent = agent;
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http.get(opts, function (res) {
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var data = '';
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res.setEncoding('utf8');
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res.on('data', function (b) {
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data += b;
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});
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res.on('end', function () {
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data = JSON.parse(data);
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assert.equal('/test?foo=bar&1=2', data.url);
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done();
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});
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});
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});
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it('should receive the 407 authorization code on the `http.ClientResponse`', function (done) {
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// set a proxy authentication function for this test
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proxy.authenticate = function (req, fn) {
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// reject all requests
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fn(null, false);
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};
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var proxyUri = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
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var agent = new HttpProxyAgent(proxyUri);
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var opts = {};
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// `host` and `port` don't really matter since the proxy will reject anyways
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opts.host = '127.0.0.1';
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opts.port = 80;
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opts.agent = agent;
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http.get(opts, function (res) {
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assert.equal(407, res.statusCode);
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assert('proxy-authenticate' in res.headers);
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delete proxy.authenticate;
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done();
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});
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});
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it('should send the "Proxy-Authorization" request header', function (done) {
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// set a proxy authentication function for this test
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proxy.authenticate = function (req, fn) {
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// username:password is "foo:bar"
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fn(null, req.headers['proxy-authorization'] == 'Basic Zm9vOmJhcg==');
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};
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// set HTTP "request" event handler for this test
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server.once('request', function (req, res) {
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res.end(JSON.stringify(req.headers));
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});
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var proxyUri = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
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var proxyOpts = url.parse(proxyUri);
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proxyOpts.auth = 'foo:bar';
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var agent = new HttpProxyAgent(proxyOpts);
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var opts = url.parse('http://127.0.0.1:' + serverPort);
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opts.agent = agent;
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http.get(opts, function (res) {
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var data = '';
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res.setEncoding('utf8');
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res.on('data', function (b) {
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data += b;
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});
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res.on('end', function () {
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data = JSON.parse(data);
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assert.equal('127.0.0.1:' + serverPort, data.host);
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assert('via' in data);
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delete proxy.authenticate;
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done();
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});
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});
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});
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it('should emit an "error" event on the `http.ClientRequest` if the proxy does not exist', function (done) {
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// port 4 is a reserved, but "unassigned" port
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var proxyUri = 'http://127.0.0.1:4';
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var agent = new HttpProxyAgent(proxyUri);
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var opts = url.parse('http://nodejs.org');
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opts.agent = agent;
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var req = http.get(opts);
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req.once('error', function (err) {
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assert.equal('ECONNREFUSED', err.code);
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req.abort();
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done();
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});
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});
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it('should work after the first tick of the `http.ClientRequest` instance', function (done) {
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// set HTTP "request" event handler for this test
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server.once('request', function (req, res) {
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res.end(JSON.stringify(req.url));
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});
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var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
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var agent = new HttpProxyAgent(proxy);
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var opts = url.parse('http://127.0.0.1:' + serverPort + '/test');
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opts.agent = agent;
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// defer the "connect()" function logic, since calling .end() before the
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// "socket" event can cause weirdness since the HTTP header will have been
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// cached and the HttpProxyAgent `req.path` patches won't be respected
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var callback = agent.callback;
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agent.callback = function (req, opts, fn) {
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setTimeout(function () {
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agent.callback = callback;
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agent.callback(req, opts, fn);
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}, 10);
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};
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http.get(opts, function (res) {
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var data = '';
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res.setEncoding('utf8');
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res.on('data', function (b) {
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data += b;
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});
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res.on('end', function () {
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data = JSON.parse(data);
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assert.equal('/test', data);
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done();
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});
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});
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});
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});
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});
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