Add basic request logging functionality (#178)

bin/client

@@ -25,7 +25,12 @@ var argv = require('yargs')
         alias: 'port',
         describe: 'Internal http server port',
     })
+    .option('d', {
+        alias: 'debug-logs',
+        describe: 'Print Request Headers',
+    })
     .require('port')
+    .boolean('debug-logs')
     .help('help', 'Show this help and exit')
     .version(require('../package').version)
     .argv;
@@ -41,6 +46,7 @@ var opt = {
     port: argv.port,
     local_host: argv['local-host'],
     subdomain: argv.subdomain,
+    debug_logs: argv['debug-logs'],
 };
 
 lt_client(opt.port, opt, function(err, tunnel) {

lib/Tunnel.js

@@ -70,13 +70,14 @@ Tunnel.prototype._init = function(cb) {
 Tunnel.prototype._establish = function(info) {
     var self = this;
     var opt = self._opt;
-    
+
     // increase max event listeners so that localtunnel consumers don't get
     // warning messages as soon as they setup even one listener. See #71
     self.setMaxListeners(info.max_conn + (EventEmitter.defaultMaxListeners || 10));
 
     info.local_host = opt.local_host;
     info.local_port = opt.port;
+    info.debug_logs = opt.debug_logs;
 
     var tunnels = self.tunnel_cluster = TunnelCluster(info);
 

lib/TunnelCluster.js

@@ -30,6 +30,8 @@ TunnelCluster.prototype.open = function() {
     var local_host = opt.local_host || 'localhost';
     var local_port = opt.local_port;
 
+    var debug_logs = opt.debug_logs;
+
     debug('establishing tunnel %s:%s <> %s:%s', local_host, local_port, remote_host, remote_port);
 
     // connection to localtunnel server
@@ -113,6 +115,19 @@ TunnelCluster.prototype.open = function() {
         });
     }
 
+    remote.on('data', function(data) {
+        if (debug_logs) {
+            var match = data.toString().match(/^(\w+) (\S+)/);
+            if (match) {
+                console.log(
+                    new Date().toString(),
+                    `method=${match[1]}`,
+                    `path=${match[2]}`
+                );
+            }
+        }
+    });
+
     // tunnel is considered open when remote connects
     remote.once('connect', function() {
         self.emit('open', remote);