prosody
c6465fb3c839
plugins/muc/util.lib.lua

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plugins/muc/util.lib.lua @ 10898:c6465fb3c839

util.ringbuffer: Prevent creation of zero-size buffer
author Kim Alvefur <zash@zash.se>
date Fri, 29 May 2020 18:11:42 +0200
parent 10713:38159b9adf9f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
6218
bf11910bad5a plugins/muc: Move valid_roles, valid_affiliations and is_kickable_error to new muc/util module
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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 _M = {};
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11
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12 _M.valid_affiliations = {
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13 outcast = -1;
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14 none = 0;
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15 member = 1;
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16 admin = 2;
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17 owner = 3;
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18 };
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19
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20 _M.valid_roles = {
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21 none = 0;
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22 visitor = 1;
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23 participant = 2;
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24 moderator = 3;
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25 };
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26
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27 local kickable_error_conditions = {
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28 ["gone"] = true;
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29 ["internal-server-error"] = true;
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30 ["item-not-found"] = true;
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31 ["jid-malformed"] = true;
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32 ["recipient-unavailable"] = true;
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33 ["redirect"] = true;
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34 ["remote-server-not-found"] = true;
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35 ["remote-server-timeout"] = true;
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36 ["service-unavailable"] = true;
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37 ["malformed error"] = true;
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38 };
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39 function _M.is_kickable_error(stanza)
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40 local cond = select(2, stanza:get_error()) or "malformed error";
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41 return kickable_error_conditions[cond];
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42 end
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43
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44 local filtered_namespaces = module:shared("filtered-namespaces");
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45 filtered_namespaces["http://jabber.org/protocol/muc"] = true;
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46 filtered_namespaces["http://jabber.org/protocol/muc#user"] = true;
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47
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48 local function muc_ns_filter(tag)
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49 if filtered_namespaces[tag.attr.xmlns] then
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50 return nil;
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51 end
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52 return tag;
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53 end
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54 function _M.filter_muc_x(stanza)
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55 return stanza:maptags(muc_ns_filter);
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56 end
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57
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58 function _M.add_filtered_namespace(xmlns)
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59 filtered_namespaces[xmlns] = true;
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60 end
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61
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62 function _M.only_with_min_role(role)
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63 local min_role_value = _M.valid_roles[role];
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64 return function (nick, occupant) --luacheck: ignore 212/nick
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65 if _M.valid_roles[occupant.role or "none"] >= min_role_value then
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66 return true;
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67 end
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68 end;
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69 end
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70
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71 return _M;