Add ability to blacklist channels in site config

config.template.yaml

@@ -171,3 +171,7 @@ contacts:
 # periodically, the garbage collector will be invoked immediately.
 # The server must be invoked with node --expose-gc index.js for this to have any effect.
 aggressive-gc: false
+
+# Allows you to blacklist certain channels.  Users will be automatically kicked
+# upon trying to join one.
+channel-blacklist: []

lib/config.js

@@ -103,7 +103,8 @@ var defaults = {
     playlist: {
         "max-items": 4000,
         "update-interval": 5
-    }
+    },
+    "channel-blacklist": []
 };
 
 /**
@@ -324,6 +325,14 @@ function preprocessConfig(cfg) {
             reserved[key] = false;
         }
     }
+
+    /* Convert channel blacklist to a hashtable */
+    var tbl = {};
+    cfg["channel-blacklist"].forEach(function (c) {
+        tbl[c.toLowerCase()] = true;
+    });
+    cfg["channel-blacklist"] = tbl;
+
     return cfg;
 }
 

lib/user.js

@@ -46,6 +46,10 @@ function User(socket) {
         }
 
         data.name = data.name.toLowerCase();
+        if (data.name in Config.get("channel-blacklist")) {
+            self.kick("This channel is blacklisted.");
+        }
+
         self.waitFlag(Flags.U_READY, function () {
             var chan = Server.getServer().getChannel(data.name);
             chan.joinUser(self, data);