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// HTTP forward proxy server that can also proxy HTTPS requests | |
// using the CONNECT method | |
// requires https://github.com/nodejitsu/node-http-proxy | |
var httpProxy = require('http-proxy'), | |
url = require('url'), | |
net = require('net'), | |
http = require('http'); | |
process.on('uncaughtException', logError); | |
function truncate(str) { | |
var maxLength = 64; | |
return (str.length >= maxLength ? str.substring(0,maxLength) + '...' : str); | |
} | |
function logRequest(req) { | |
console.log(req.method + ' ' + truncate(req.url)); | |
for (var i in req.headers) | |
console.log(' * ' + i + ': ' + truncate(req.headers[i])); | |
} | |
function logError(e) { | |
console.warn('*** ' + e); | |
} | |
// this proxy will handle regular HTTP requests | |
var regularProxy = new httpProxy.RoutingProxy(); | |
// standard HTTP server that will pass requests | |
// to the proxy | |
var server = http.createServer(function (req, res) { | |
logRequest(req); | |
uri = url.parse(req.url); | |
regularProxy.proxyRequest(req, res, { | |
host: uri.hostname, | |
port: uri.port || 80 | |
}); | |
}); | |
// support HTTP CONNECT to tunnel SSL connections | |
// see here: http://en.wikipedia.org/wiki/HTTP_tunnel#HTTP_CONNECT_tunneling | |
server.on('upgrade', function(req, socket, head) { | |
logRequest(req); | |
// URL is in the form 'hostname:port' | |
var parts = req.url.split(':', 2); | |
// open a TCP connection to the remote host | |
var conn = net.connect(parts[1], parts[0], function() { | |
// respond to the client that the connection was made | |
socket.write("HTTP/1.1 200 OK\r\n\r\n"); | |
// create a tunnel between the two hosts | |
socket.pipe(conn); | |
conn.pipe(socket); | |
}); | |
}); | |
server.listen(3333); |
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