0.1.3

Added the --localhost parameter to tunnel the traffic to other hosts

README.md

@@ -49,6 +49,12 @@ client.on('error', function(err) {
 });
 ```
 
+## other clients ##
+
+Clients in other languages
+
+*go* [gotunnelme](https://github.com/NoahShen/gotunnelme)
+
 ## server ##
 
 See shtylman/localtunnel-server for details on the server that powers localtunnel.

bin/client

@@ -11,12 +11,17 @@ var argv = require('optimist')
     .options('subdomain', {
         describe: 'request this subdomain'
     })
+    .options('local-host', {
+        describe: 'tunnel traffic to this host instead of localhost'
+    })
+    .default('local-host', 'localhost')
     .describe('port', 'internal http server port')
     .argv;
 
 var opt = {
     host: argv.host,
     port: argv.port,
+    local_host: argv['local-host'],
     subdomain: argv.subdomain,
 }
 

client.js

@@ -2,13 +2,14 @@ var net = require('net');
 var url = require('url');
 var EventEmitter = require('events').EventEmitter;
 
+var after = require('after');
 var request = require('request');
 
 // request upstream url and connection info
 var request_url = function(params, cb) {
     request(params, function(err, res, body) {
         if (err) {
-            cb(err);
+            return cb(err);
         }
 
         cb(null, body);
@@ -18,6 +19,9 @@ var request_url = function(params, cb) {
 var connect = function(opt) {
     var ev = new EventEmitter();
 
+    // local host
+    var local_host = opt.local_host;
+
     // local port
     var local_port = opt.port;
 
@@ -30,7 +34,7 @@ var connect = function(opt) {
     var assigned_domain = opt.subdomain;
 
     // connect to upstream given connection parameters
-    var tunnel = function (remote_host, remote_port) {
+    var tunnel = function (remote_host, remote_port, dead) {
 
         var remote_opt = {
             host: remote_host,
@@ -38,7 +42,7 @@ var connect = function(opt) {
         };
 
         var local_opt = {
-            host: 'localhost',
+            host: local_host,
             port: local_port
         };
 
@@ -49,9 +53,9 @@ var connect = function(opt) {
                 return;
             }
 
+            // we need a new tunnel
             if (++remote_attempts >= 3) {
-                console.error('localtunnel server offline - try again');
-                process.exit(-1);
+                return dead();
             }
 
             // connection to localtunnel server
@@ -108,32 +112,42 @@ var connect = function(opt) {
     // where to quest
     params.uri = base_uri + ((assigned_domain) ? assigned_domain : '?new');
 
-    // get an id from lt server and setup forwarding tcp connections
-    request_url(params, function(err, body) {
+    function init_tunnel() {
+        // get an id from lt server and setup forwarding tcp connections
+        request_url(params, function(err, body) {
+            if (err) {
+                ev.emit('error', new Error('tunnel server not available: ' + err.message + ', retry 1s'));
 
-        if (err) {
-            ev.emit('error', new Error('tunnel server not available: %s, retry 1s', err.message));
+                // retry interval for id request
+                return setTimeout(function() {
+                    init_tunnel();
+                }, 1000);
+            }
 
-            // retry interval for id request
-            return setTimeout(function() {
-                connect_proxy(opt);
-            }, 1000);
-        }
+            // our assigned hostname and tcp port
+            var port = body.port;
+            var host = upstream.hostname;
 
-        // our assigned hostname and tcp port
-        var port = body.port;
-        var host = upstream.hostname;
+            // store the id so we can try to get the same one
+            assigned_domain = body.id;
 
-        // store the id so we can try to get the same one
-        assigned_domain = body.id;
+            var max_conn = body.max_conn_count || 1;
 
-        var max_conn = body.max_conn_count || 1;
-        for (var count = 0 ; count < max_conn ; ++count) {
-            tunnel(host, port);
-        }
+            // after all our tunnels die, we ask for new ones
+            // this might happen if the upstream server dies
+            var dead = after(max_conn, function() {
+                init_tunnel();
+            });
 
-        ev.emit('url', body.url);
-    });
+            for (var count = 0 ; count < max_conn ; ++count) {
+                tunnel(host, port, dead);
+            }
+
+            ev.emit('url', body.url);
+        });
+    }
+
+    init_tunnel();
 
     return ev;
 };

package.json

@@ -2,14 +2,15 @@
   "author": "Roman Shtylman <shtylman@gmail.com>",
   "name": "localtunnel",
   "description": "expose localhost to the world",
-  "version": "0.1.0",
+  "version": "0.1.3",
   "repository": {
     "type": "git",
     "url": "git://github.com/shtylman/localtunnel.git"
   },
   "dependencies": {
     "request": "2.11.4",
-    "optimist": "0.3.4"
+    "optimist": "0.3.4",
+    "after": "0.8.1"
   },
   "devDependencies": {},
   "bin": {