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plugins/muc/subject.lib.lua @ 8894:7273fb6af831
util.stanza: Remove redundant check from :text now done in :add_direct_child
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 08 Jun 2018 17:44:44 +0200 |
parent | 8884:a387e00471d6 |
child | 8928:d41f8ce67c8e |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- Copyright (C) 2014 Daurnimator |
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5 -- |
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6 -- This project is MIT/X11 licensed. Please see the |
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7 -- COPYING file in the source package for more information. |
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8 -- |
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9 |
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10 local st = require "util.stanza"; |
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11 |
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12 local muc_util = module:require "muc/util"; |
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13 local valid_roles = muc_util.valid_roles; |
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14 |
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15 local function create_subject_message(from, subject) |
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16 return st.message({from = from; type = "groupchat"}) |
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17 :tag("subject"):text(subject or ""):up(); |
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18 end |
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19 |
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20 local function get_changesubject(room) |
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21 return room._data.changesubject; |
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22 end |
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23 |
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24 local function set_changesubject(room, changesubject) |
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25 changesubject = changesubject and true or nil; |
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26 if get_changesubject(room) == changesubject then return false; end |
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27 room._data.changesubject = changesubject; |
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28 return true; |
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29 end |
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30 |
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31 module:hook("muc-disco#info", function (event) |
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32 table.insert(event.form, { |
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33 name = "muc#roominfo_changesubject"; |
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34 type = "boolean"; |
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35 }); |
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36 event.formdata["muc#roominfo_changesubject"] = get_changesubject(event.room); |
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37 end); |
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38 |
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39 module:hook("muc-config-form", function(event) |
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40 table.insert(event.form, { |
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41 name = "muc#roomconfig_changesubject"; |
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42 type = "boolean"; |
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43 label = "Allow Occupants to Change Subject?"; |
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44 value = get_changesubject(event.room); |
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45 }); |
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46 end, 100-8); |
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47 |
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48 module:hook("muc-config-submitted/muc#roomconfig_changesubject", function(event) |
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49 if set_changesubject(event.room, event.value) then |
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50 event.status_codes["104"] = true; |
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51 end |
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52 end); |
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53 |
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54 local function get_subject(room) |
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55 -- a <message/> stanza from the room JID (or from the occupant JID of the entity that set the subject) |
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56 return room._data.subject_from or room.jid, room._data.subject; |
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57 end |
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58 |
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59 local function send_subject(room, to) |
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60 local msg = create_subject_message(get_subject(room)); |
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61 msg.attr.to = to; |
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62 room:route_stanza(msg); |
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63 end |
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64 |
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65 local function set_subject(room, from, subject) |
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66 if subject == "" then subject = nil; end |
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67 local old_from, old_subject = get_subject(room); |
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68 if old_subject == subject and old_from == from then return false; end |
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69 room._data.subject_from = from; |
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70 room._data.subject = subject; |
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71 local msg = create_subject_message(from, subject); |
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72 room:broadcast_message(msg); |
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73 return true; |
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74 end |
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75 |
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76 -- Send subject to joining user |
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77 module:hook("muc-occupant-session-new", function(event) |
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78 send_subject(event.room, event.stanza.attr.from); |
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79 end, 20); |
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80 |
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81 -- Prosody has made the decision that messages with <subject/> are exclusively subject changes |
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82 -- e.g. body will be ignored; even if the subject change was not allowed |
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83 module:hook("muc-occupant-groupchat", function(event) |
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84 local stanza = event.stanza; |
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85 local subject = stanza:get_child("subject"); |
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86 if subject then |
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87 local room = event.room; |
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88 local occupant = event.occupant; |
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89 -- Role check for subject changes |
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90 local role_rank = valid_roles[occupant and occupant.role or "none"]; |
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91 if role_rank >= valid_roles.moderator or |
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92 ( role_rank >= valid_roles.participant and get_changesubject(room) ) then -- and participant |
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93 set_subject(room, occupant.nick, subject:get_text()); |
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94 room:save(); |
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95 return true; |
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96 else |
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97 event.origin.send(st.error_reply(stanza, "auth", "forbidden", "You are not allowed to change the subject")); |
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98 return true; |
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99 end |
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100 end |
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101 end, 20); |
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102 |
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103 return { |
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104 get_changesubject = get_changesubject; |
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105 set_changesubject = set_changesubject; |
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106 get = get_subject; |
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107 set = set_subject; |
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108 send = send_subject; |
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109 }; |