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mod_list_active/mod_list_active.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 |
parent | 2640:c06c59b99b3c |
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-- Copyright (C) 2012-2013 Kim Alvefur local um = require "core.usermanager"; local sm = require "core.storagemanager"; local dm = require "util.datamanager"; local jid_join = require"util.jid".join; local multipliers = { d = 86400, -- day w = 604800, -- week m = 2629746, -- month y = 31556952, -- year } local output_formats = { default = "%s", event = "%s %s", } function module.command(arg) if #arg < 2 then print("usage: prosodyctl mod_list_active example.net time [format]"); print("time is a number followed by 'day', 'week', 'month' or 'year'"); print("formats are:"); for name, fmt in pairs(output_formats) do print(name, fmt:format("user@example.com", "last action")) end return; end local items = {}; local host = arg[1]; assert(hosts[host], "Host "..tostring(host).." does not exist"); sm.initialize_host(host); um.initialize_host(host); local max_age, unit = assert(arg[2], "No time range given"):match("^(%d*)%s*([dwmy]?)"); max_age = os.time() - ( tonumber(max_age) or 1 ) * ( multipliers[unit] or 1 ); local output = assert(output_formats[arg[3] or "default"], "No such output format: "..tostring(arg[3] or "default")); for user in dm.users(host, "lastlog") do local last_active = dm.load(user, host, "lastlog"); local last_action = last_active and last_active.event or "?" last_active = last_active and last_active.timestamp or 0; if last_active > max_age then print(output:format(jid_join(user, host), last_action)); end end end