2 local log = require "util.logger".init("modulemanager")
4 local loadfile, pcall = loadfile, pcall;
5 local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv;
6 local pairs, ipairs = pairs, ipairs;
7 local t_insert = table.insert;
10 local tostring, print = tostring, print;
15 module "modulemanager"
17 local handler_info = {};
20 local modulehelpers = setmetatable({}, { __index = _G });
22 local function _add_iq_handler(module, origin_type, xmlns, handler)
23 handlers[origin_type] = handlers[origin_type] or {};
24 handlers[origin_type].iq = handlers[origin_type].iq or {};
25 if not handlers[origin_type].iq[xmlns] then
26 handlers[origin_type].iq[xmlns]= handler;
27 handler_info[handler] = module;
28 log("debug", "mod_%s now handles tag 'iq' with query namespace '%s'", module.name, xmlns);
30 log("warning", "mod_%s wants to handle tag 'iq' with query namespace '%s' but mod_%s already handles that", module.name, xmlns, handler_info[handlers[origin_type].iq[xmlns]].module.name);
34 function modulehelpers.add_iq_handler(origin_type, xmlns, handler)
35 if not (origin_type and handler and xmlns) then return false; end
36 if type(origin_type) == "table" then
37 for _, origin_type in ipairs(origin_type) do
38 _add_iq_handler(getfenv(2).module, origin_type, xmlns, handler);
42 _add_iq_handler(getfenv(2).module, origin_type, xmlns, handler);
45 local function _add_handler(module, origin_type, tag, xmlns, handler)
46 handlers[origin_type] = handlers[origin_type] or {};
47 if not handlers[origin_type][tag] then
48 handlers[origin_type][tag] = handlers[origin_type][tag] or {};
49 handlers[origin_type][tag][xmlns]= handler;
50 handler_info[handler] = module;
51 log("debug", "mod_%s now handles tag '%s'", module.name, tag);
52 elseif handler_info[handlers[origin_type][tag]] then
53 log("warning", "mod_%s wants to handle tag '%s' but mod_%s already handles that", module.name, tag, handler_info[handlers[origin_type][tag]].module.name);
57 function modulehelpers.add_handler(origin_type, tag, xmlns, handler)
58 if not (origin_type and tag and xmlns and handler) then return false; end
59 if type(origin_type) == "table" then
60 for _, origin_type in ipairs(origin_type) do
61 _add_handler(getfenv(2).module, origin_type, tag, xmlns, handler);
65 _add_handler(getfenv(2).module, origin_type, tag, xmlns, handler);
69 local mod, err = loadfile("plugins/mod_"..name..".lua");
71 log("error", "Unable to load module '%s': %s", name or "nil", err or "nil");
75 local pluginenv = setmetatable({ module = { name = name } }, { __index = modulehelpers });
77 setfenv(mod, pluginenv);
78 local success, ret = pcall(mod);
80 log("error", "Error initialising module '%s': %s", name or "nil", ret or "nil");
86 function handle_stanza(origin, stanza)
87 local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type;
89 if name == "iq" and xmlns == "jabber:client" and handlers[origin_type] then
90 log("debug", "Stanza is an <iq/>");
91 local child = stanza.tags[1];
93 local xmlns = child.attr.xmlns or xmlns;
94 log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns);
95 local handler = handlers[origin_type][name] and handlers[origin_type][name][xmlns];
97 log("debug", "Passing stanza to mod_%s", handler_info[handler].name);
98 return handler(origin, stanza) or true;
101 elseif handlers[origin_type] then
102 local handler = handlers[origin_type][name];
104 handler = handler[xmlns];
106 log("debug", "Passing stanza to mod_%s", handler_info[handler].name);
107 return handler(origin, stanza) or true;
111 log("debug", "Stanza unhandled by any modules, xmlns: %s", stanza.attr.xmlns);
112 return false; -- we didn't handle it
116 local event_handlers = {};
118 function modulehelpers.add_event_hook(name, handler)
119 if not event_handlers[name] then
120 event_handlers[name] = {};
122 t_insert(event_handlers[name] , handler);
125 function fire_event(name, ...)
126 local event_handlers = event_handlers[name];
127 if event_handlers then
128 for name, handler in ipairs(event_handlers) do