diff options
| author | Kim Alvefur <zash@zash.se> | 2022-11-22 23:56:01 +0100 |
|---|---|---|
| committer | Kim Alvefur <zash@zash.se> | 2022-11-22 23:56:01 +0100 |
| commit | 4fa3808e8dfccb12c11ad2b22130765307750851 (patch) | |
| tree | 96fbe6dec28cf867a32c04436cef805c9befefcf | |
| parent | 6bd9bed561efc2729b346dda6c07817e3ae26b18 (diff) | |
| download | prosody-4fa3808e8dfccb12c11ad2b22130765307750851.tar.gz prosody-4fa3808e8dfccb12c11ad2b22130765307750851.zip | |
util.stanza: Allow U+7F0.11.14
Allowed by XML despite arguably being a control character.
Drops the part of the range meant to rule out octets invalid in UTF-8
(\247 starts a 4-byte sequence), since UTF-8 correctness is validated by
util.encodings.utf8.valid().
| -rw-r--r-- | util/stanza.lua | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/util/stanza.lua b/util/stanza.lua index a8c619d0..3cd56c5f 100644 --- a/util/stanza.lua +++ b/util/stanza.lua @@ -45,8 +45,12 @@ 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) |