sync/lib/torblocker.js

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JavaScript
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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) {
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if (err.trace)
Logger.errlog.log(err.trace());
else
Logger.errlog.log(err);
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});
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);
});
});
}
module.exports = function () {
var x = {
ipList: [],
shouldBlockIP: function (ip) {
return this.ipList.indexOf(ip) >= 0;
}
};
var init = function () {
getTorIPs(function (err, ips) {
if (err) {
Logger.errlog.log(err);
return;
}
Logger.syslog.log("Loaded Tor IP list");
x.ipList = ips;
});
};
init();
return x;
};