verse
72be3c2cf602
libs/adhoc.lib.lua

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libs/adhoc.lib.lua @ 383:72be3c2cf602

libs.adhoc: Don't set unintentional globals
author Kim Alvefur <zash@zash.se>
date Tue, 05 May 2015 01:10:33 +0200
parent 198:f6702e7ce5f9
child 457:73d4eb93657b
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1 -- Copyright (C) 2009-2010 Florian Zeitz
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2 --
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3 -- This file is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6
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7 local st, uuid = require "util.stanza", require "util.uuid";
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8
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9 local xmlns_cmd = "http://jabber.org/protocol/commands";
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10
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11 local states = {}
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12
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13 local _M = {};
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14
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15 local function _cmdtag(desc, status, sessionid, action)
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16 local cmd = st.stanza("command", { xmlns = xmlns_cmd, node = desc.node, status = status });
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17 if sessionid then cmd.attr.sessionid = sessionid; end
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18 if action then cmd.attr.action = action; end
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19
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20 return cmd;
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21 end
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22
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23 function _M.new(name, node, handler, permission)
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24 return { name = name, node = node, handler = handler, cmdtag = _cmdtag, permission = (permission or "user") };
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25 end
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26
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27 function _M.handle_cmd(command, origin, stanza)
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28 local sessionid = stanza.tags[1].attr.sessionid or uuid.generate();
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29 local dataIn = {};
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30 dataIn.to = stanza.attr.to;
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31 dataIn.from = stanza.attr.from;
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32 dataIn.action = stanza.tags[1].attr.action or "execute";
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33 dataIn.form = stanza.tags[1]:child_with_ns("jabber:x:data");
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34
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35 local data, state = command:handler(dataIn, states[sessionid]);
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36 states[sessionid] = state;
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37 local stanza = st.reply(stanza);
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38 local cmdtag;
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39 if data.status == "completed" then
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40 states[sessionid] = nil;
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41 cmdtag = command:cmdtag("completed", sessionid);
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42 elseif data.status == "canceled" then
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43 states[sessionid] = nil;
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44 cmdtag = command:cmdtag("canceled", sessionid);
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45 elseif data.status == "error" then
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46 states[sessionid] = nil;
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47 stanza = st.error_reply(stanza, data.error.type, data.error.condition, data.error.message);
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48 origin.send(stanza);
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49 return true;
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50 else
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51 cmdtag = command:cmdtag("executing", sessionid);
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52 end
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53
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54 for name, content in pairs(data) do
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55 if name == "info" then
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56 cmdtag:tag("note", {type="info"}):text(content):up();
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57 elseif name == "warn" then
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58 cmdtag:tag("note", {type="warn"}):text(content):up();
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59 elseif name == "error" then
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60 cmdtag:tag("note", {type="error"}):text(content.message):up();
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61 elseif name =="actions" then
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62 local actions = st.stanza("actions");
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63 for _, action in ipairs(content) do
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64 if (action == "prev") or (action == "next") or (action == "complete") then
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65 actions:tag(action):up();
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66 else
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67 module:log("error", 'Command "'..command.name..
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68 '" at node "'..command.node..'" provided an invalid action "'..action..'"');
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69 end
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70 end
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71 cmdtag:add_child(actions);
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72 elseif name == "form" then
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73 cmdtag:add_child((content.layout or content):form(content.values));
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74 elseif name == "result" then
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75 cmdtag:add_child((content.layout or content):form(content.values, "result"));
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76 elseif name == "other" then
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77 cmdtag:add_child(content);
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78 end
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79 end
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80 stanza:add_child(cmdtag);
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81 origin.send(stanza);
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82
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83 return true;
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84 end
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85
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86 return _M;