Mercurial > prosody-modules
view mod_http_user_count/mod_http_user_count.lua @ 4651:8231774f5bfd
mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8
The `body:sub()` call risks splitting the string in the middle of a
multi-byte UTF-8 sequence. This should have been caught by util.stanza
validation, but that would have caused some havoc, at the very least causing
the notification to not be sent.
There have been no reports of this happening. Likely because this module
isn't widely deployed among users with languages that use many longer UTF-8
sequences.
The util.encodings.utf8.valid() function is O(n) where only the last
sequence really needs to be checked, but it's in C and expected to be fast.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | a45f2f79e99b |
children |
line wrap: on
line source
local it = require "util.iterators"; local jid_split = require "util.jid".prepped_split; module:depends("http"); local function check_muc(jid) local room_name, host = jid_split(jid); if not hosts[host] then return nil, "No such host: "..host; elseif not hosts[host].modules.muc then return nil, "Host '"..host.."' is not a MUC service"; end return room_name, host; end module:provides("http", { route = { ["GET /sessions"] = function () return tostring(it.count(it.keys(prosody.full_sessions))); end; ["GET /users"] = function () return tostring(it.count(it.keys(prosody.bare_sessions))); end; ["GET /host"] = function () return tostring(it.count(it.keys(prosody.hosts[module.host].sessions))); end; ["GET /room/*"] = function (request, room_jid) local name, host = check_muc(room_jid); if not name then return "0"; end local room = prosody.hosts[host].modules.muc.rooms[name.."@"..host]; if not room then return "0"; end return tostring(it.count(it.keys(room._occupants))); end; }; });