refactoring message broker into plugin

app/controllers/socket.js

@@ -3,9 +3,6 @@
 // server-side socket behaviour
 var ios = null; // io is already taken in express
 var util = require('bitcore').util;
-var mdb = require('../../lib/MessageDb').default();
-var microtime = require('microtime');
-var enableMessageBroker;
 
 var verbose = false;
 var log = function() {
@@ -15,64 +12,21 @@ var log = function() {
 }
 
 module.exports.init = function(io_ext, config) {
-  enableMessageBroker = config ? config.enableMessageBroker : false;
   ios = io_ext;
+  verbose = config.verbose;
   if (ios) {
     // when a new socket connects
     ios.sockets.on('connection', function(socket) {
       log('New connection from ' + socket.id);
       // when it subscribes, make it join the according room
       socket.on('subscribe', function(topic) {
-        if (socket.rooms.length === 1) {
-          log('subscribe to ' + topic);
-          socket.join(topic);
-        }
+        log('subscribe to ' + topic);
+        socket.join(topic);
       });
 
-      if (enableMessageBroker) {
-        // when it requests sync, send him all pending messages
-        socket.on('sync', function(ts) {
-          log('Sync requested by ' + socket.id);
-          log('    from timestamp '+ts);
-          var rooms = socket.rooms;
-          if (rooms.length !== 2) {
-            socket.emit('insight-error', 'Must subscribe with public key before syncing');
-            return;
-          }
-          var to = rooms[1];
-          var upper_ts = Math.round(microtime.now());
-          log('    to timestamp '+upper_ts);
-          mdb.getMessages(to, ts, upper_ts, function(err, messages) {
-            if (err) {
-              throw new Error('Couldn\'t get messages on sync request: ' + err);
-            }
-            log('\tFound ' + messages.length + ' message' + (messages.length !== 1 ? 's' : ''));
-            for (var i = 0; i < messages.length; i++) {
-              broadcastMessage(messages[i], socket);
-            }
-          });
-        });
-
-        // when it sends a message, add it to db
-        socket.on('message', function(m) {
-          log('Message sent from ' + m.pubkey + ' to ' + m.to);
-          mdb.addMessage(m, function(err) {
-            if (err) {
-              throw new Error('Couldn\'t add message to database: ' + err);
-            }
-          });
-        });
-
-
-        // disconnect handler
-        socket.on('disconnect', function() {
-          log('disconnected ' + socket.id);
-        });
-      }
     });
-    if (enableMessageBroker)
-      mdb.on('message', broadcastMessage);
   }
+  return ios;
 };
 
 var simpleTx = function(tx) {

config/config.js

@@ -61,6 +61,7 @@ dataDir += network === 'testnet' ? 'testnet3' : '';
 
 var safeConfirmations = process.env.INSIGHT_SAFE_CONFIRMATIONS || 6;
 var ignoreCache = process.env.INSIGHT_IGNORE_CACHE || 0;
+var verbose = process.env.VERBOSE === 'true';
 
 
 var bitcoindConf = {
@@ -76,7 +77,7 @@ var bitcoindConf = {
   disableAgent: true
 };
 
-var enableMessageBroker = process.env.ENABLE_MESSAGE_BROKER === 'true';
+var enableMailbox = process.env.ENABLE_MAILBOX === 'true';
 
 if (!fs.existsSync(db)) {
   var err = fs.mkdirSync(db);
@@ -89,7 +90,8 @@ if (!fs.existsSync(db)) {
 }
 
 module.exports = {
-  enableMessageBroker: enableMessageBroker,
+  enableMailbox: enableMailbox,
+  verbose: verbose,
   version: version,
   root: rootPath,
   publicPath: process.env.INSIGHT_PUBLIC_PATH || false,

insight.js

@@ -111,16 +111,63 @@ if (!config.disableHistoricSync) {
 if (peerSync) peerSync.allowReorgs = true;
 
 
-//express settings
+// express settings
 require('./config/express')(expressApp, historicSync, peerSync);
 
-//Bootstrap routes
+// routes
 require('./config/routes')(expressApp);
 
 // socket.io
 var server = require('http').createServer(expressApp);
 var ios = require('socket.io')(server);
-require('./app/controllers/socket.js').init(ios, config);
+
+// plugins
+require('./app/controllers/socket.js').init(ios);
+if (config.enableMessageBroker) {
+  var mdb = require('../../lib/MessageDb').default();
+
+  // when it requests sync, send him all pending messages
+  socket.on('sync', function(ts) {
+    log('Sync requested by ' + socket.id);
+    log('    from timestamp ' + ts);
+    var rooms = socket.rooms;
+    if (rooms.length !== 2) {
+      socket.emit('insight-error', 'Must subscribe with public key before syncing');
+      return;
+    }
+    var to = rooms[1];
+    var upper_ts = Math.round(microtime.now());
+    log('    to timestamp ' + upper_ts);
+    mdb.getMessages(to, ts, upper_ts, function(err, messages) {
+      if (err) {
+        throw new Error('Couldn\'t get messages on sync request: ' + err);
+      }
+      log('\tFound ' + messages.length + ' message' + (messages.length !== 1 ? 's' : ''));
+      for (var i = 0; i < messages.length; i++) {
+        broadcastMessage(messages[i], socket);
+      }
+    });
+  });
+
+  // when it sends a message, add it to db
+  socket.on('message', function(m) {
+    log('Message sent from ' + m.pubkey + ' to ' + m.to);
+    mdb.addMessage(m, function(err) {
+      if (err) {
+        throw new Error('Couldn\'t add message to database: ' + err);
+      }
+    });
+  });
+
+
+  // disconnect handler
+  socket.on('disconnect', function() {
+    log('disconnected ' + socket.id);
+  });
+
+  mdb.on('message', broadcastMessage);
+
+}
 
 //Start the app by listening on <port>
 server.listen(config.port, function() {

plugins/mailbox.js

@@ -0,0 +1,2 @@
+
+var microtime = require('microtime');

test/test.socket-server.js

@@ -15,7 +15,7 @@ describe('socket server', function() {
   });
   it('should register socket handlers', function() {
     var io = {
-      sockets: new EventEmitter()
+      sockets: new EventEmitter(),
     }
     socket.init(io);