From 70031018288f7ab8ae68cdd03d18058752e7a2d9 Mon Sep 17 00:00:00 2001
From: calzoneman <calzoneman@gmail.com>
Date: Sun, 28 Apr 2013 01:06:58 -0500
Subject: [PATCH] Limit connections per IP

---
 config.js    |  1 +
 package.json |  2 +-
 server.js    | 24 +++++++++++++++++++++---
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/config.js b/config.js
index ecff86c0..8616a542 100644
--- a/config.js
+++ b/config.js
@@ -14,3 +14,4 @@ exports.MYSQL_DB = "";
 exports.MYSQL_USER = "";
 exports.MYSQL_PASSWORD = "";
 exports.IO_PORT = 1337;
+exports.MAX_PER_IP = 10;
diff --git a/package.json b/package.json
index 53a05f46..29e14d2f 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "author": "Calvin Montgomery",
     "name": "CyTube",
     "description": "Online media synchronizer and chat",
-    "version": "1.3.5",
+    "version": "1.3.6",
     "repository": {
         "url": "http://github.com/calzoneman/sync"
     },
diff --git a/server.js b/server.js
index f0eeeb5c..edd1d8b7 100644
--- a/server.js
+++ b/server.js
@@ -9,7 +9,7 @@ The above copyright notice and this permission notice shall be included in all c
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
-const VERSION = "1.3.5";
+const VERSION = "1.3.6";
 
 var fs = require("fs");
 var Logger = require("./logger.js");
@@ -57,6 +57,7 @@ var Database = require("./database.js");
 Database.init();
 
 exports.channels = {};
+exports.clients = {};
 
 fs.exists("chandump", function(exists) {
     if(!exists) {
@@ -77,11 +78,28 @@ fs.exists("chanlogs", function(exists) {
 });
 
 exports.io.sockets.on("connection", function(socket) {
-    var user = new User(socket, socket.handshake.address.address);
+    var ip = socket.handshake.address.address;
+    if(!(ip in exports.clients)) {
+        exports.clients[ip] = 1;
+    }
+    else {
+        exports.clients[ip]++;
+    }
+    if(exports.clients[ip] > Config.MAX_PER_IP) {
+        socket.emit("kick", {
+            reason: "Too many connections from your IP address"
+        });
+        exports.clients[ip]--;
+        socket.disconnect(true);
+        return;
+    }
+    socket.on("disconnect", function() {
+        exports.clients[ip]--;
+    });
+    var user = new User(socket, ip);
     Logger.syslog.log("Accepted connection from /" + user.ip);
 });
 
-
 process.on("uncaughtException", function(err) {
     Logger.errlog.log("[SEVERE] Uncaught Exception: " + err);
 });