From 5d4504e51b8d1e77b20fffaf60cd7f2bdb80785a Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Sun, 3 Mar 2019 19:31:56 +0100
Subject: util.pubsub: Validate node configuration on node creation (fixes
 #1328)

---
 util/pubsub.lua | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'util')

diff --git a/util/pubsub.lua b/util/pubsub.lua
index a53e8b95..e5e0cb7c 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -436,10 +436,19 @@ function service:create(node, actor, options) --> ok, err
 		return false, "conflict";
 	end
 
+	local config = setmetatable(options or {}, {__index=self.node_defaults});
+
+	if self.config.check_node_config then
+		local ok = self.config.check_node_config(node, actor, config);
+		if not ok then
+			return false, "not-acceptable";
+		end
+	end
+
 	self.nodes[node] = {
 		name = node;
 		subscribers = {};
-		config = setmetatable(options or {}, {__index=self.node_defaults});
+		config = config;
 		affiliations = {};
 	};
 
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