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1 |
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2 local log = require "util.logger".init("modulemanager") |
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3 |
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4 local loadfile, pcall = loadfile, pcall; |
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5 local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv; |
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6 local pairs, ipairs = pairs, ipairs; |
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7 local type = type; |
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8 |
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9 local tostring, print = tostring, print; |
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10 |
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11 local _G = _G; |
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12 |
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13 module "modulemanager" |
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14 |
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15 local handler_info = {}; |
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16 local handlers = {}; |
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17 |
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18 local modulehelpers = setmetatable({}, { __index = _G }); |
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19 |
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20 function modulehelpers.add_iq_handler(origin_type, xmlns, handler) |
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21 handlers[origin_type] = handlers[origin_type] or {}; |
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22 handlers[origin_type].iq = handlers[origin_type].iq or {}; |
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23 if not handlers[origin_type].iq[xmlns] then |
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24 handlers[origin_type].iq[xmlns]= handler; |
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25 handler_info[handler] = getfenv(2).module; |
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26 log("debug", "mod_%s now handles iq,%s", getfenv(2).module.name, xmlns); |
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27 else |
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28 log("warning", "mod_%s wants to handle iq,%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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29 end |
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30 end |
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31 |
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32 function modulehelpers.add_presence_handler(origin_type, handler) |
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33 end |
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34 |
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35 function modulehelpers.add_message_handler(origin_type, handler) |
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36 end |
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37 |
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38 function loadall() |
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39 load("legacyauth"); |
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40 load("roster"); |
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41 end |
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42 |
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43 function load(name) |
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44 local mod, err = loadfile("plugins/mod_"..name..".lua"); |
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45 if not mod then |
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46 log("error", "Unable to load module '%s': %s", name or "nil", err or "nil"); |
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47 return; |
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48 end |
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49 |
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50 local pluginenv = setmetatable({ module = { name = name } }, { __index = modulehelpers }); |
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51 |
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52 setfenv(mod, pluginenv); |
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53 local success, ret = pcall(mod); |
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54 if not success then |
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55 log("error", "Error initialising module '%s': %s", name or "nil", ret or "nil"); |
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56 return; |
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57 end |
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58 end |
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59 |
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60 function handle_stanza(origin, stanza) |
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61 local name, origin_type = stanza.name, origin.type; |
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62 |
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63 if name == "iq" then |
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64 log("debug", "Stanza is an <iq/>"); |
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65 local child = stanza.tags[1]; |
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66 if child then |
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67 local xmlns = child.attr.xmlns; |
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68 log("debug", "Stanza has xmlns: %s", xmlns); |
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69 local handler = handlers[origin_type][name][xmlns]; |
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70 if handler then |
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71 log("debug", "Passing stanza to mod_%s", handler_info[handler].name); |
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72 return handler(origin, stanza) or true; |
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73 end |
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74 |
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75 end |
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76 end |
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77 log("debug", "Stanza unhandled by any modules"); |
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78 return false; -- we didn't handle it |
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79 end |