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prosody
File
util/helpers.lua @ 12189:82c8e855c850
mod_storage_xep0227: treat roster metadata pseudo-entry correctly
The roster version is stored in a pseudo-item which has the key `false`.
The if condition in the touched code attempts to guard against this, but
it does not take into account that the jid prepping returns nil instead
of false.
By moving the jid prepping into the if, we can check for the metadata
entry safely.
author | Jonas Schäfer <jonas@wielicki.name> |
---|---|
date | Sat, 15 Jan 2022 15:40:29 +0100 |
parent | 11059:ad89e3cc67b6 |
child | 12975:d10957394a3c |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local debug = require "util.debug"; -- Helper functions for debugging local log = require "util.logger".init("util.debug"); local function log_events(events, name, logger) local f = events.fire_event; if not f then error("Object does not appear to be a util.events object"); end logger = logger or log; name = name or tostring(events); function events.fire_event(event, ...) logger("debug", "%s firing event: %s", name, event); return f(event, ...); end local function event_handler_hook(handler, event_name, event_data) logger("debug", "calling handler for %s: %s", event_name, handler); local ok, ret = pcall(handler, event_data); if not ok then logger("error", "error in event handler %s: %s", handler, ret); error(ret); end if ret ~= nil then logger("debug", "event chain ended for %s by %s with result: %s", event_name, handler, ret); end return ret; end events.set_debug_hook(event_handler_hook); events[events.fire_event] = f; return events; end local function revert_log_events(events) events.fire_event, events[events.fire_event] = events[events.fire_event], nil; -- :)) events.set_debug_hook(nil); end local function log_host_events(host) return log_events(prosody.hosts[host].events, host); end local function revert_log_host_events(host) return revert_log_events(prosody.hosts[host].events); end local function show_events(events, specific_event) local event_handlers = events._handlers; local events_array = {}; local event_handler_arrays = {}; for event, priorities in pairs(events._event_map) do local handlers = event_handlers[event]; if handlers and (event == specific_event or not specific_event) then table.insert(events_array, event); local handler_strings = {}; for i, handler in ipairs(handlers) do local upvals = debug.string_from_var_table(debug.get_upvalues_table(handler)); handler_strings[i] = " "..(priorities[handler] or "?")..": "..tostring(handler)..(upvals and ("\n "..upvals) or ""); end event_handler_arrays[event] = handler_strings; end end table.sort(events_array); local i = 1; while i <= #events_array do local handlers = event_handler_arrays[events_array[i]]; for j=#handlers, 1, -1 do table.insert(events_array, i+1, handlers[j]); end if i > 1 then events_array[i] = "\n"..events_array[i]; end i = i + #handlers + 1 end return table.concat(events_array, "\n"); end local function get_upvalue(f, get_name) local i, name, value = 0; repeat i = i + 1; name, value = debug.getupvalue(f, i); until name == get_name or name == nil; return value; end return { log_host_events = log_host_events; revert_log_host_events = revert_log_host_events; log_events = log_events; revert_log_events = revert_log_events; show_events = show_events; get_upvalue = get_upvalue; };