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-rw-r--r--util/stanza.lua6
1 files changed, 5 insertions, 1 deletions
diff --git a/util/stanza.lua b/util/stanza.lua
index 29551918..86b88169 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -34,8 +34,12 @@ local _ENV = nil;
local stanza_mt = { __name = "stanza" };
stanza_mt.__index = stanza_mt;
+-- Basic check for valid XML character data.
+-- Disallow control characters.
+-- Tab U+09 and newline U+0A are allowed.
+-- For attributes, allow the \1 separator between namespace and name.
local function valid_xml_cdata(str, attr)
- return not s_find(str, attr and "[^\1\9\10\13\20-~\128-\247]" or "[^\9\10\13\20-~\128-\247]");
+ return not s_find(str, attr and "[^\1\9\10\13\20-\255]" or "[^\9\10\13\20-\255]");
end
local function check_name(name, name_type)