X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util%2Fdependencies.lua;h=ea19d9a8b606b4f5cfa1d372b54d0f117035135c;hb=e1e1bd2dfa385b1003eb6ccbabda639ecb99114e;hp=109a3332e9180c50dcc0915cd4d3af0d53340584;hpb=9cd5c05ecd73c691966be58796545081b168f958;p=prosody.git

diff --git a/util/dependencies.lua b/util/dependencies.lua
index 109a3332..ea19d9a8 100644
--- a/util/dependencies.lua
+++ b/util/dependencies.lua
@@ -49,6 +49,14 @@ package.preload["util.ztact"] = function ()
 end;
 
 function check_dependencies()
+	if _VERSION ~= "Lua 5.1" then
+		print "***********************************"
+		print("Unsupported Lua version: ".._VERSION);
+		print("Only Lua 5.1 is supported.");
+		print "***********************************"
+		return false;
+	end
+
 	local fatal;
 
 	local lxp = softreq "lxp"
@@ -140,7 +148,15 @@ function log_warnings()
 		if not pcall(lxp.new, { StartDoctypeDecl = false }) then
 			log("error", "The version of LuaExpat on your system leaves Prosody "
 				.."vulnerable to denial-of-service attacks. You should upgrade to "
-				.."LuaExpat 1.1.1 or higher as soon as possible. See "
+				.."LuaExpat 1.3.0 or higher as soon as possible. See "
+				.."http://prosody.im/doc/depends#luaexpat for more information.");
+		end
+		if not lxp.new({}).getcurrentbytecount then
+			log("error", "The version of LuaExpat on your system does not support "
+				.."stanza size limits, which may leave servers on untrusted "
+				.."networks (e.g. the internet) vulnerable to denial-of-service "
+				.."attacks. You should upgrade to LuaExpat 1.3.0 or higher as "
+				.."soon as possible. See "
 				.."http://prosody.im/doc/depends#luaexpat for more information.");
 		end
 	end