prosody
b2e6a175537d
plugins/mod_carbons.lua

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plugins/mod_carbons.lua @ 13028:b2e6a175537d

mod_debug_reset: Don't delay operations until next tick For some unknown reason, this was required with the old mock util.time functions prior to 012d6e7b723a. After 012d6e7b723a, it breaks. So I'm happy to revert to not delaying anything. This makes tests pass again.
author Matthew Wild <mwild1@gmail.com>
date Thu, 06 Apr 2023 14:17:50 +0100
parent 12977:74b9e05af71e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
6546
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- XEP-0280: Message Carbons implementation for Prosody
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2be85cb3bc66 mod_carbons: Make the conditions for ignoring MUC PMs more specific (fixes #744)
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parents: 6841
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2 -- Copyright (C) 2011-2016 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5
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6 local st = require "prosody.util.stanza";
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7 local jid_bare = require "prosody.util.jid".bare;
74b9e05af71e plugins: Prefix module imports with prosody namespace
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8 local jid_resource = require "prosody.util.jid".resource;
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9 local xmlns_carbons = "urn:xmpp:carbons:2";
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10 local xmlns_forward = "urn:xmpp:forward:0";
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9f40ae38f0de mod_carbons: Get full_ and bare_sessions from the prosody global [luacheck]
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11 local full_sessions, bare_sessions = prosody.full_sessions, prosody.bare_sessions;
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12
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8ccb22c0fa56 mod_carbons: Advertise following of recommended rules (closes #1486)
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parents: 11796
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13 module:add_feature("urn:xmpp:carbons:rules:0");
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14
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15 local function is_bare(jid)
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16 return not jid_resource(jid);
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17 end
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18
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19 local function toggle_carbons(event)
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20 local origin, stanza = event.origin, event.stanza;
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21 local state = stanza.tags[1].name;
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22 module:log("debug", "%s %sd carbons", origin.full_jid, state);
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23 origin.want_carbons = state == "enable" and stanza.tags[1].attr.xmlns;
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24 origin.send(st.reply(stanza));
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25 return true;
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26 end
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27 module:hook("iq-set/self/"..xmlns_carbons..":disable", toggle_carbons);
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28 module:hook("iq-set/self/"..xmlns_carbons..":enable", toggle_carbons);
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29
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30 local function should_copy(stanza, c2s, user_bare) --> boolean, reason: string
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31 local st_type = stanza.attr.type or "normal";
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32 if stanza:get_child("private", xmlns_carbons) then
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33 return false, "private";
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34 end
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35
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36 if stanza:get_child("no-copy", "urn:xmpp:hints") then
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37 return false, "hint";
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38 end
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39
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22bbc644c5eb mod_carbons: Fix syntax error [luacheck]
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40 if not c2s and stanza.attr.to ~= user_bare and stanza:get_child("x", "http://jabber.org/protocol/muc#user") then
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41 -- MUC PMs are normally sent to full JIDs
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42 return false, "muc-pm";
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43 end
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44
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45 if st_type == "chat" then
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46 return true, "type";
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47 end
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48
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49 if st_type == "normal" and stanza:get_child("body") then
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50 return true, "type";
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51 end
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52
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53 -- Normal outgoing chat messages are sent to=bare JID. This clause should
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54 -- match the error bounces from those, which would have from=bare JID and
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55 -- be incoming (not c2s).
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56 if st_type == "error" and not c2s and is_bare(stanza.attr.from) then
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57 return true, "bounce";
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58 end
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59
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60 if stanza:get_child(nil, "urn:xmpp:jingle-message:0") or stanza:get_child(nil, "urn:xmpp:jingle-message:1") then
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61 -- XXX Experimental XEP
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62 return true, "jingle call";
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63 end
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64
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65 if stanza:get_child_with_attr("stanza-id", "urn:xmpp:sid:0", "by", user_bare) then
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66 return true, "archived";
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67 end
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68
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69 return false, "default";
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70 end
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71
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72 module:hook("carbons-should-copy", function (event)
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73 local should, why = should_copy(event.stanza);
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74 event.reason = why;
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75 return should;
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76 end, -1)
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77
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78 local function message_handler(event, c2s)
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79 local origin, stanza = event.origin, event.stanza;
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80 local orig_type = stanza.attr.type or "normal";
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81 local orig_from = stanza.attr.from;
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82 local bare_from = jid_bare(orig_from);
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83 local orig_to = stanza.attr.to;
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84 local bare_to = jid_bare(orig_to);
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85
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86 -- Stanza sent by a local client
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87 local bare_jid = bare_from; -- JID of the local user
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88 local target_session = origin;
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89 local top_priority = false;
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90 local user_sessions = bare_sessions[bare_from];
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91
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92 -- Stanza about to be delivered to a local client
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93 if not c2s then
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94 bare_jid = bare_to;
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95 target_session = full_sessions[orig_to];
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96 user_sessions = bare_sessions[bare_jid];
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97 if not target_session and user_sessions then
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98 -- The top resources will already receive this message per normal routing rules,
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99 -- so we are going to skip them in order to avoid sending duplicated messages.
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100 local top_resources = user_sessions.top_resources;
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101 top_priority = top_resources and top_resources[1].priority
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102 end
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103 end
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104
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105 if not user_sessions then
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106 module:log("debug", "Skip carbons for offline user");
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107 return -- No use in sending carbons to an offline user
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108 end
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109
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110 local event_payload = { stanza = stanza; session = origin };
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111 local should = module:fire_event("carbons-should-copy", event_payload);
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112 local why = event_payload.reason;
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113
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114 if not should then
d95e083931d1 mod_carbons: Refactor in new style (mod_mam/csi)
Kim Alvefur <zash@zash.se>
parents: 10778
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115 module:log("debug", "Not copying stanza: %s (%s)", stanza:top_tag(), why);
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a1b633ba9bd9 mod_carbons: Check for and strip 'private' tag before stopping
Kim Alvefur <zash@zash.se>
parents: 10785
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116 if why == "private" and not c2s then
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3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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117 stanza:maptags(function(tag)
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Kim Alvefur <zash@zash.se>
parents:
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118 if not ( tag.attr.xmlns == xmlns_carbons and tag.name == "private" ) then
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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119 return tag;
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Kim Alvefur <zash@zash.se>
parents:
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120 end
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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121 end);
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Kim Alvefur <zash@zash.se>
parents: 10785
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122 end
a1b633ba9bd9 mod_carbons: Check for and strip 'private' tag before stopping
Kim Alvefur <zash@zash.se>
parents: 10785
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123 return;
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Kim Alvefur <zash@zash.se>
parents:
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124 end
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Kim Alvefur <zash@zash.se>
parents:
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125
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658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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126 local carbon;
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Kim Alvefur <zash@zash.se>
parents:
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127 user_sessions = user_sessions and user_sessions.sessions;
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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128 for _, session in pairs(user_sessions) do
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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129 -- Carbons are sent to resources that have enabled it
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Kim Alvefur <zash@zash.se>
parents:
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130 if session.want_carbons
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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131 -- but not the resource that sent the message, or the one that it's directed to
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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132 and session ~= target_session
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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133 -- and isn't among the top resources that would receive the message per standard routing rules
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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134 and (c2s or session.priority ~= top_priority) then
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658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
diff changeset
135 if not carbon then
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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136 -- Create the carbon copy and wrap it as per the Stanza Forwarding XEP
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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137 local copy = st.clone(stanza);
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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138 if c2s and not orig_to then
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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139 stanza.attr.to = bare_from;
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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140 end
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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141 copy.attr.xmlns = "jabber:client";
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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142 carbon = st.message{ from = bare_jid, type = orig_type, }
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
diff changeset
143 :tag(c2s and "sent" or "received", { xmlns = xmlns_carbons })
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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144 :tag("forwarded", { xmlns = xmlns_forward })
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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145 :add_child(copy):reset();
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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146
658b759a1f7a mod_carbons: Improve performance by delaying creation of carbon payload
Kim Alvefur <zash@zash.se>
parents: 8354
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147 end
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Kim Alvefur <zash@zash.se>
parents: 8354
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148
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Kim Alvefur <zash@zash.se>
parents:
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149 carbon.attr.to = session.full_jid;
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Kim Alvefur <zash@zash.se>
parents:
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150 module:log("debug", "Sending carbon to %s", session.full_jid);
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Kim Alvefur <zash@zash.se>
parents:
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151 session.send(carbon);
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Kim Alvefur <zash@zash.se>
parents:
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152 end
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parents:
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153 end
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parents:
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154 end
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Kim Alvefur <zash@zash.se>
parents:
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155
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 local function c2s_message_handler(event)
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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157 return message_handler(event, true)
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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158 end
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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159
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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160 -- Stanzas sent by local clients
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c58075c4d375 mod_message, mod_carbons: Adjust event hook priorities to negative (core modules should do this to make overriding from other modules easier)
Kim Alvefur <zash@zash.se>
parents: 7698
diff changeset
161 module:hook("pre-message/host", c2s_message_handler, -0.5);
c58075c4d375 mod_message, mod_carbons: Adjust event hook priorities to negative (core modules should do this to make overriding from other modules easier)
Kim Alvefur <zash@zash.se>
parents: 7698
diff changeset
162 module:hook("pre-message/bare", c2s_message_handler, -0.5);
c58075c4d375 mod_message, mod_carbons: Adjust event hook priorities to negative (core modules should do this to make overriding from other modules easier)
Kim Alvefur <zash@zash.se>
parents: 7698
diff changeset
163 module:hook("pre-message/full", c2s_message_handler, -0.5);
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Kim Alvefur <zash@zash.se>
parents:
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164 -- Stanzas to local clients
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Kim Alvefur <zash@zash.se>
parents: 7698
diff changeset
165 module:hook("message/bare", message_handler, -0.5);
c58075c4d375 mod_message, mod_carbons: Adjust event hook priorities to negative (core modules should do this to make overriding from other modules easier)
Kim Alvefur <zash@zash.se>
parents: 7698
diff changeset
166 module:hook("message/full", message_handler, -0.5);
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Kim Alvefur <zash@zash.se>
parents:
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167
3426e903c48d mod_carbons: Import XEP-0280 implementation from prosody-modules (sans compat with older versions of the protocol)
Kim Alvefur <zash@zash.se>
parents:
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168 module:add_feature(xmlns_carbons);