cli is working!

bin/stunnel.js

@@ -5,6 +5,7 @@
 var pkg = require('../package.json');
 
 var program = require('commander');
+var url = require('url');
 var stunnel = require('../wsclient.js');
 
 function collectProxies(val, memo) {
@@ -34,7 +35,9 @@ function collectProxies(val, memo) {
     , hostname: parts[1]
     , port: parts[2]
     };
-  }).forEach(memo.push);
+  }).forEach(function (val) {
+    memo.push(val);
+  });
 
   return memo;
 }
@@ -46,25 +49,42 @@ program
   .action(function (url) {
     program.url = url;
   })
-  .option('-k --insecure', 'Allow TLS connections to stunneld without valid certs (H)')
+  .option('-k --insecure', 'Allow TLS connections to stunneld without valid certs (rejectUnauthorized: false)')
   .option('--locals <LINE>', 'comma separated list of <proto>:<//><servername>:<port> to which matching incoming http and https should forward (reverse proxy). Ex: https://john.example.com,tls:*:1337', collectProxies, [ ]) // --reverse-proxies
   .option('--stunneld <URL>', 'the domain (or ip address) at which you are running stunneld.js (the proxy)') // --proxy
-  .option('--secret', 'the same secret used by stunneld (used for JWT authentication)')
+  .option('--secret <STRING>', 'the same secret used by stunneld (used for JWT authentication)')
-  .option('--token', 'a pre-generated token for use with stunneld (instead of generating one with --secret)')
+  .option('--token <STRING>', 'a pre-generated token for use with stunneld (instead of generating one with --secret)')
   .parse(process.argv)
   ;
 
-// Assumption: will not get next tcp packet unless previous packet succeeded
+program.stunneld = program.stunneld || 'wss://pokemap.hellabit.com:3000';
-var hostname = 'aj.daplie.me'; // 'pokemap.hellabit.com'
+
 var jwt = require('jsonwebtoken');
+var domainsMap = {};
+var tokenData = {
+  name: null
+, domains: null
+};
+var location = url.parse(program.stunneld);
+
+if (!location.protocol || /\./.test(location.protocol)) {
+  program.stunneld = 'wss://' + program.stunneld;
+  location = url.parse(program.stunneld);
+}
+program.stunneld = location.protocol + '//' + location.hostname + (location.port ? ':' + location.port : '');
+
+program.locals.forEach(function (proxy) {
+  domainsMap[proxy.hostname] = true;
+});
+tokenData.domains = Object.keys(domainsMap);
+tokenData.name = tokenData.domains[0];
 
 program.services = {};
 program.locals.forEach(function (proxy) {
   //program.services = { 'ssh': 22, 'http': 80, 'https': 443 };
   program.services[proxy.protocol] = proxy.port;
 });
-program.token = program.token || jwt.sign({ name: hostname }, program.secret || 'shhhhh');
+program.token = program.token || jwt.sign(tokenData, program.secret || 'shhhhh');
-program.stunneld = program.stunneld || 'wss://pokemap.hellabit.com:3000';
 
 stunnel.connect(program);
 

wsclient.js

@@ -4,6 +4,8 @@
 var net = require('net');
 var WebSocket = require('ws');
 var sni = require('sni');
+var pack = require('tunnel-packer').pack;
+var authenticated = false;
 
 // TODO move these helpers to tunnel-packer package
 function addrToId(address) {
@@ -31,55 +33,31 @@ request.get('https://pokemap.hellabit.com:3000?access_token=' + token, { rejectU
 return;
 //*/
 
-  function run(copts) {
+function run(copts) {
   var services = copts.services; // TODO pair with hostname / sni
   var token = copts.token;
   var tunnelUrl = copts.stunneld + '/?access_token=' + token;
   var wstunneler;
   var retry = true;
   var localclients = {};
-    wstunneler = new WebSocket(tunnelUrl, { rejectUnauthorized: false });
-
-    function onOpen() {
-      console.log('[open] tunneler connected');
-
-      /*
-      setInterval(function () {
-        console.log('');
-        console.log('localclients.length:', Object.keys(localclients).length);
-        console.log('');
-      }, 5000);
-      */
-
-      //wstunneler.send(token);
-
   // BaaS / Backendless / noBackend / horizon.io
   // user authentication
   // a place to store data
   // file management
   // Synergy Teamwork Paradigm = Jabberwocky
-      var pack = require('tunnel-packer').pack;
   var handlers = {
     onmessage: function (opts) {
       var cid = addrToId(opts);
-          console.log('[wsclient] onMessage:', cid);
       var service = opts.service;
       var port = services[service];
-          var lclient;
       var servername;
       var str;
       var m;
 
-          function endWithError() {
+      authenticated = true;
-            try {
-              wstunneler.send(pack(opts, null, 'error'), { binary: true });
-            } catch(e) {
-              // ignore
-            }
-          }
 
       if (localclients[cid]) {
-            console.log("[=>] received data from '" + cid + "' =>", opts.data.byteLength);
+        //console.log("[=>] received data from '" + cid + "' =>", opts.data.byteLength);
         localclients[cid].write(opts.data);
         return;
       }
@@ -92,111 +70,132 @@ return;
         servername = sni(opts.data);
       }
       else {
-            endWithError();
+        handlers._onLocalError(cid, opts, new Error("unsupported service '" + service + "'"));
         return;
       }
 
       if (!servername) {
-            console.warn("|__ERROR__| no servername found for '" + cid + "'", opts.data.byteLength);
+        console.info("[error] missing servername for '" + cid + "'", opts.data.byteLength);
         //console.warn(opts.data.toString());
         wstunneler.send(pack(opts, null, 'error'), { binary: true });
         return;
       }
 
-          console.log("servername: '" + servername + "'");
+      console.info("[connect] new client '" + cid + "' for '" + servername + "' (" + (handlers._numClients() + 1) + " clients)");
 
-          lclient = localclients[cid] = net.createConnection({ port: port, host: '127.0.0.1' }, function () {
+      localclients[cid] = net.createConnection({ port: port, host: '127.0.0.1' }, function () {
-            console.log("[=>] first packet from tunneler to '" + cid + "' as '" + opts.service + "'", opts.data.byteLength);
+        //console.log("[=>] first packet from tunneler to '" + cid + "' as '" + opts.service + "'", opts.data.byteLength);
-            lclient.write(opts.data);
+        localclients[cid].write(opts.data);
       });
-          lclient.on('data', function (chunk) {
+      localclients[cid].on('data', function (chunk) {
-            console.log("[<=] local '" + opts.service + "' sent to '" + cid + "' <= ", chunk.byteLength, "bytes");
+        //console.log("[<=] local '" + opts.service + "' sent to '" + cid + "' <= ", chunk.byteLength, "bytes");
         //console.log(JSON.stringify(chunk.toString()));
         wstunneler.send(pack(opts, chunk), { binary: true });
       });
-          lclient.on('error', function (err) {
+      localclients[cid].on('error', function (err) {
-            console.error("[error] local '" + opts.service + "' '" + cid + "'");
+        handlers._onLocalError(cid, opts, err);
-            console.error(err);
-            delete localclients[cid];
-            try {
-              wstunneler.send(pack(opts, null, 'error'), { binary: true });
-            } catch(e) {
-              // ignore
-            }
       });
-          lclient.on('end', function () {
+      localclients[cid].on('end', function () {
-            console.log("[end] local '" + opts.service + "' '" + cid + "'");
+        console.info("[end] closing client '" + cid + "' for '" + servername + "' (" + (handlers._numClients() - 1) + " clients)");
-            delete localclients[cid];
+        handlers._onLocalClose(cid, opts);
-            try {
-              wstunneler.send(pack(opts, null, 'end'), { binary: true });
-            } catch(e) {
-              // ignore
-            }
       });
     }
   , onend: function (opts) {
       var cid = addrToId(opts);
-          console.log("[end] '" + cid + "'");
+      //console.log("[end] '" + cid + "'");
       handlers._onend(cid);
     }
   , onerror: function (opts) {
       var cid = addrToId(opts);
-          console.log("[error] '" + cid + "'", opts.code || '', opts.message);
+      //console.log("[error] '" + cid + "'", opts.code || '', opts.message);
       handlers._onend(cid);
     }
   , _onend: function (cid) {
       if (localclients[cid]) {
+        try {
           localclients[cid].end();
+        } catch(e) {
+          // ignore
+        }
       }
       delete localclients[cid];
     }
+  , _onLocalClose: function (cid, opts, err) {
+      try {
+        wstunneler.send(pack(opts, null, err && 'error' || 'end'), { binary: true });
+      } catch(e) {
+        // ignore
+      }
+      delete localclients[cid];
+    }
+  , _onLocalError: function (cid, opts, err) {
+      console.info("[error] closing '" + cid + "' because '" + err.message + "' (" + (handlers._numClients() - 1) + " clients)");
+      handlers._onLocalClose(cid, opts, err);
+    }
+  , _numClients: function () {
+      return Object.keys(localclients).length;
+    }
   };
-      var machine = require('tunnel-packer').create(handlers);
 
+  var wsHandlers = {
+    onOpen: function () {
+      console.info("[open] connected to '" + copts.stunneld + "'");
+
+      var machine = require('tunnel-packer').create(handlers);
       wstunneler.on('message', machine.fns.addChunk);
     }
 
-    wstunneler.on('open', onOpen);
+  , onClose: function () {
+      if (!authenticated) {
+        console.info('[close] failed on first attempt... check authentication.');
+      }
+      else if (retry) {
+        console.info('[retry] disconnected and waiting...');
+        setTimeout(run, 5000, copts);
+      }
+      else {
+        console.info('[close] closing tunnel to exit...');
+      }
 
-    wstunneler.on('close', function () {
+      process.removeListener('exit', wsHandlers.onExit);
-      console.log('closing tunnel...');
+      process.removeListener('SIGINT', wsHandlers.onExit);
-      process.removeListener('exit', onExit);
-      process.removeListener('SIGINT', onExit);
       Object.keys(localclients).forEach(function (cid) {
         try {
           localclients[cid].end();
         } catch(e) {
           // ignore
         }
-
         delete localclients[cid];
       });
-
-      if (retry) {
-        console.log('retry on close');
-        setTimeout(run, 5000);
     }
-    });
 
-    wstunneler.on('error', function (err) {
+  , onError: function (err) {
-      console.error("[error] will retry on 'close'");
+      console.error("[tunnel error] " + err.message);
       console.error(err);
-    });
+    }
 
-    function onExit() {
+  , onExit: function () {
       retry = false;
-      console.log('on exit...');
       try {
         wstunneler.close();
       } catch(e) {
+        console.error("[error] wstunneler.close()");
         console.error(e);
         // ignore
       }
     }
+  };
 
-    process.on('exit', onExit);
+  console.info("[connect] '" + copts.stunneld + "'");
-    process.on('SIGINT', onExit);
+
-  }
+  wstunneler = new WebSocket(tunnelUrl, { rejectUnauthorized: !copts.insecure });
+  wstunneler.on('open', wsHandlers.onOpen);
+  wstunneler.on('close', wsHandlers.onClose);
+  wstunneler.on('error', wsHandlers.onError);
+  process.on('exit', wsHandlers.onExit);
+  process.on('SIGINT', wsHandlers.onExit);
+}
+
+module.exports.connect = run;
 
-  module.exports.connect = run;
 }());