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plugins/adhoc.lua @ 116:151c8cc776df
verse.plugins.adhoc: XEP-0050 Ad-hoc commands plugin
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 26 Aug 2010 17:52:16 +0100 |
child | 122:e2600454fd54 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/plugins/adhoc.lua Thu Aug 26 17:52:16 2010 +0100 @@ -0,0 +1,46 @@ +local adhoc = require "lib.adhoc"; + +local xmlns_commands = "http://jabber.org/protocol/commands"; + +local commands = {}; + +function verse.plugins.adhoc(stream) + stream:add_disco_feature(xmlns_commands); + + local function has_affiliation(jid, aff) + if not(aff) or aff == "user" then return true; end + -- TODO: Support 'roster', and callback etc. + end + + function stream:add_adhoc_command(name, node, handler, permission) + commands[node] = adhoc.new(name, node, handler, permission); + stream:add_disco_item({ jid = stream.jid, node = node, name = name }, xmlns_commands); + return commands[node]; + end + + local function handle_command(stanza) + local command_tag = stanza.tags[1]; + local node = command_tag.attr.node; + + local handler = commands[node]; + if not handler then return; end + + if not has_affiliation(stanza.attr.from, handler.permission) then + stream:send(verse.error_reply(stanza, "auth", "forbidden", "You don't have permission to execute this command"):up() + :add_child(handler:cmdtag("canceled") + :tag("note", {type="error"}):text("You don't have permission to execute this command"))); + return true + end + + -- User has permission now execute the command + return adhoc.handle_cmd(handler, { send = function (d) return stream:send(d) end }, stanza); + end + + stream:hook("iq/"..xmlns_commands, function (stanza) + local type = stanza.attr.type; + local name = stanza.tags[1].name; + if type == "set" and name == "command" then + return handle_command(stanza); + end + end); +end