isock/isocks.client.js

Web -> Non-Web connectionusing Socket.io

if (module !== undefined) {
    isock = require("./isock.client.js");
    simplersa = require("simplersa");
}
isocks = (function (o, cb = (function () { })) {
    var d = (function (want, def) {
        return want || def;
    });
    o = d(o, {});
    o.server = d(o.server, "localhost");
    o.port = d(o.port, 24681);
    var conn = isock({
        server: o.server,
        port: o.port
    });
    var secure = false;
    var server_rsa = false;
    var client_rsa = false;
    var rsa = false;
    var on_data = (function () { });
    var on_disconnect = (function () { });
    var encrypt = (function (rsa, data) {
        if (rsa !== null) {
            return rsa.enc(data);
        }
        return false;
    });
    var decrypt = (function (rsa, data) {
        if (rsa !== null) {
            return rsa.dec(data);
        }
        return false;
    });
    conn.on_disconnect(function () {
        conn.close();
        conn.start();
    });
    conn.on_receive(function (data) {
        if (data.secure) {
            data.data = JSON.parse(decrypt(rsa, data.data), true)[0];
        }
        on_data(data.data);
    });
    conn.on_connect(function () {
        conn.on("secure-1", function (data) {
            var key = data.key;
            var rsa1 = simplersa();
            rsa1.set.pub(key);
            server_rsa = rsa1;
            var rsa2 = simplersa();
            rsa2.gen.pri();
            client_rsa = rsa2;
            key = rsa1.enc(rsa2.get.pub());
            conn.emit("secure-2", { key: key });
        });
        conn.on("secure-2", function (data) {
            var key = data.key;
            var dkey = decrypt(client_rsa, key);
            var rsa1 = simplersa();
            rsa1.set.pub(dkey);
            server_rsa = rsa1;
            var rsa2 = simplersa();
            rsa2.gen.pri();
            client_rsa = rsa2;
            key = rsa1.enc(rsa2.get.pub());
            conn.emit("secure-3", { key: key });
        });
        conn.on("secure-3", function (data) {
            var key = data.key;
            var dkey = decrypt(client_rsa, key);
            var rsa1 = simplersa();
            rsa1.set.pub(dkey);
            server_rsa = rsa1;
            var rsa2 = simplersa();
            rsa2.gen.pri();
            client_rsa = rsa2;
            key = rsa1.enc(rsa2.get.pri());
            rsa = rsa2;
            conn.emit("secure-done", { key: key });
        });
        conn.on("secure-done", function (data) {
            if (data) {
                secure = true;
                cb({
                    send: send,
                    rsend: rsend,
                    on_data: (function (IN) {
                        on_data = IN;
                    }),
                    on_disconnect: (function (IN) {
                        on_disconnect = IN;
                    }),
                    close: (function () {
                        conn.close();
                    })
                });
            }
        });
        conn.on("get-secure", function (data) {
            //console.log(data);
            //console.log("nice request");
            conn.emit("secure-1", true);
        });
    });
    var send = (function (data) {
        if (secure) {
            data = encrypt(rsa, data);
        }
        conn.send({
            secure: secure,
            data: data
        });
    });
    var rsend = (function (data, reply) {
        if (secure) {
            data = encrypt(rsa, data);
        }
        conn.rsend({
            secure: secure,
            data: data
        }, function (data) {
            if (secure) {
                data = JSON.parse(decrypt(rsa, data), true)[0];
            }
            reply(data);
        });
    });
    conn.start();
});
isocks_client = isocks;
if (module !== undefined) { module.exports = isocks; }