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local log = require "util.logger".init("modulemanager") |
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local loadfile, pcall = loadfile, pcall; |
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local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; |
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local pairs, ipairs = pairs, ipairs; |
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local type = type; |
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local tostring, print = tostring, print; |
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local _G = _G; |
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module "modulemanager" |
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local handler_info = {}; |
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local handlers = {}; |
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local modulehelpers = setmetatable({}, { __index = _G }); |
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function modulehelpers.add_iq_handler(origin_type, xmlns, handler) |
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handlers[origin_type] = handlers[origin_type] or {}; |
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handlers[origin_type].iq = handlers[origin_type].iq or {}; |
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if not handlers[origin_type].iq[xmlns] then |
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handlers[origin_type].iq[xmlns]= handler; |
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handler_info[handler] = getfenv(2).module; |
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log("debug", "mod_%s now handles tag 'iq' with query namespace '%s'", getfenv(2).module.name, xmlns); |
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else |
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log("warning", "mod_%s wants to handle tag 'iq' with query namespace '%s' but mod_%s already handles that", getfenv(2).module.name, xmlns, handler_info[handlers[origin_type].iq[xmlns]].module.name); |
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end |
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end |
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function modulehelpers.add_handler(origin_type, tag, handler) |
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handlers[origin_type] = handlers[origin_type] or {}; |
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if not handlers[origin_type][tag] then |
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handlers[origin_type][tag]= handler; |
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handler_info[handler] = getfenv(2).module; |
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log("debug", "mod_%s now handles tag '%s'", getfenv(2).module.name, tag); |
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elseif handler_info[handlers[origin_type][tag]] then |
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log("warning", "mod_%s wants to handle tag '%s' but mod_%s already handles that", getfenv(2).module.name, tag, handler_info[handlers[origin_type][tag]].module.name); |
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end |
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end |
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function loadall() |
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load("saslauth"); |
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load("legacyauth"); |
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load("roster"); |
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end |
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function load(name) |
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local mod, err = loadfile("plugins/mod_"..name..".lua"); |
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if not mod then |
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log("error", "Unable to load module '%s': %s", name or "nil", err or "nil"); |
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return; |
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end |
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local pluginenv = setmetatable({ module = { name = name } }, { __index = modulehelpers }); |
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setfenv(mod, pluginenv); |
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local success, ret = pcall(mod); |
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if not success then |
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log("error", "Error initialising module '%s': %s", name or "nil", ret or "nil"); |
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return; |
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end |
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end |
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function handle_stanza(origin, stanza) |
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local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type; |
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if name == "iq" and xmlns == "jabber:client" and handlers[origin_type] then |
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log("debug", "Stanza is an <iq/>"); |
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local child = stanza.tags[1]; |
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if child then |
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local xmlns = child.attr.xmlns; |
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log("debug", "Stanza has xmlns: %s", xmlns); |
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local handler = handlers[origin_type][name][xmlns]; |
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if handler then |
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log("debug", "Passing stanza to mod_%s", handler_info[handler].name); |
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return handler(origin, stanza) or true; |
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end |
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end |
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--FIXME: All iq's must be replied to, here we should return service-unavailable I think |
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elseif handlers[origin_type] then |
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local handler = handlers[origin_type][name]; |
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if handler then |
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log("debug", "Passing stanza to mod_%s", handler_info[handler].name); |
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return handler(origin, stanza) or true; |
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end |
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end |
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log("debug", "Stanza unhandled by any modules"); |
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return false; -- we didn't handle it |
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end |