From 4c1b8e8c1aa61a2c0fc7e6ceb18a3cc8f4aa8859 Mon Sep 17 00:00:00 2001
From: Calvin Montgomery <calzoneman@gmail.com>
Date: Wed, 21 May 2014 20:33:24 -0700
Subject: [PATCH] Add ability to blacklist channels in site config

---
 config.template.yaml |  4 ++++
 lib/config.js        | 11 ++++++++++-
 lib/user.js          |  4 ++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/config.template.yaml b/config.template.yaml
index 7e3ac1a5..1073791b 100644
--- a/config.template.yaml
+++ b/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: []
diff --git a/lib/config.js b/lib/config.js
index c4427291..fbd4ed2a 100644
--- a/lib/config.js
+++ b/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;
 }
 
diff --git a/lib/user.js b/lib/user.js
index 248b4006..1df5e0ff 100644
--- a/lib/user.js
+++ b/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);