var https = require("https"); var path = require("path"); var fs = require("fs"); var domain = require("domain"); var Logger = require("./logger"); function retrieveIPs(cb) { var options = { host: "www.dan.me.uk", port: 443, path: "/torlist/", method: "GET" }; var finish = function (status, data) { if (status !== 200) { cb(new Error("Failed to retrieve Tor IP list (HTTP " + status + ")"), null); return; } var ips = data.split("\n"); cb(false, ips); }; var d = domain.create(); d.on("error", function (err) { if (err.stack) Logger.errlog.log(err.stack); else Logger.errlog.log(err); }); d.run(function () { var req = https.request(options, function (res) { var buffer = ""; res.setEncoding("utf-8"); res.on("data", function (data) { buffer += data; }); res.on("end", function () { finish(res.statusCode, buffer); }); }); req.end(); }); } function getTorIPs(cb) { retrieveIPs(function (err, ips) { if (!err) { cb(false, ips); fs.writeFile(path.join(__dirname, "..", "torlist"), ips.join("\n")); return; } fs.readFile(path.join(__dirname, "..", "torlist"), function (err, data) { if (err) { cb(err, null); return; } data = (""+data).split("\n"); cb(false, data); }); }); } var _ipList = []; getTorIPs(function (err, ips) { if (err) { Logger.errlog.log(err); return; } Logger.syslog.log("Loaded Tor IP list"); _ipList = ips; }); exports.isTorExit = function (ip) { return _ipList.indexOf(ip) >= 0; };