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