prosody
524b8cd76780
plugins/mod_csi_simple.lua

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plugins/mod_csi_simple.lua @ 9994:524b8cd76780 0.11

net.server_epoll: Restore wantread flag after pause (fixes #1354) If a chunk of data has been received that is larger than the amount read at a time, then the connection is paused for a short time after which it tries to read some more. If, after that, there is still more data to read, it should do the same thing. However, because the "want read" flag is removed and was restored after the delayed reading, it would not schedule another delayed read.
author Kim Alvefur <zash@zash.se>
date Sat, 04 May 2019 04:23:35 +0200
parent 9771:bf92f37de137
child 9909:3229be01a08a
child 10816:b4c2c7fae7c0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Copyright (C) 2016-2018 Kim Alvefur
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2 --
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3 -- This project 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 module:depends"csi"
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8
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9 local jid = require "util.jid";
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10 local st = require "util.stanza";
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11 local dt = require "util.datetime";
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12 local new_queue = require "util.queue".new;
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13
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14 local function new_pump(output, ...)
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15 -- luacheck: ignore 212/self
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16 local q = new_queue(...);
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17 local flush = true;
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18 function q:pause()
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19 flush = false;
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20 end
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21 function q:resume()
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22 flush = true;
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23 return q:flush();
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24 end
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25 local push = q.push;
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26 function q:push(item)
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27 local ok = push(self, item);
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28 if not ok then
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29 q:flush();
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30 output(item, self);
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31 elseif flush then
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32 return q:flush();
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33 end
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34 return true;
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35 end
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36 function q:flush()
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37 local item = self:pop();
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38 while item do
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39 output(item, self);
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40 item = self:pop();
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41 end
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42 return true;
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43 end
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44 return q;
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45 end
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46
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47 local queue_size = module:get_option_number("csi_queue_size", 256);
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48
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49 module:hook("csi-is-stanza-important", function (event)
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50 local stanza = event.stanza;
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51 if not st.is_stanza(stanza) then
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52 return true;
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53 end
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54 local st_name = stanza.name;
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55 if not st_name then return false; end
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56 local st_type = stanza.attr.type;
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57 if st_name == "presence" then
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58 if st_type == nil or st_type == "unavailable" then
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59 return false;
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60 end
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61 return true;
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62 elseif st_name == "message" then
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63 if st_type == "headline" then
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64 return false;
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65 end
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66 if stanza:get_child("sent", "urn:xmpp:carbons:2") then
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67 return true;
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68 end
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69 local forwarded = stanza:find("{urn:xmpp:carbons:2}received/{urn:xmpp:forward:0}/{jabber:client}message");
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70 if forwarded then
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71 stanza = forwarded;
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72 end
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73 if stanza:get_child("body") then
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74 return true;
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75 end
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76 if stanza:get_child("subject") then
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77 return true;
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78 end
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79 if stanza:get_child("encryption", "urn:xmpp:eme:0") then
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80 return true;
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81 end
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82 return false;
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83 end
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84 return true;
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85 end, -1);
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86
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87 module:hook("csi-client-inactive", function (event)
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88 local session = event.origin;
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89 if session.pump then
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90 session.pump:pause();
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91 else
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92 local bare_jid = jid.join(session.username, session.host);
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93 local send = session.send;
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94 session._orig_send = send;
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95 local pump = new_pump(session.send, queue_size);
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96 pump:pause();
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97 session.pump = pump;
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98 function session.send(stanza)
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99 if session.state == "active" or module:fire_event("csi-is-stanza-important", { stanza = stanza, session = session }) then
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100 pump:flush();
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101 send(stanza);
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102 else
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103 if st.is_stanza(stanza) and stanza.attr.xmlns == nil and stanza.name ~= "iq" then
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104 stanza = st.clone(stanza);
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105 stanza:add_direct_child(st.stanza("delay", {xmlns = "urn:xmpp:delay", from = bare_jid, stamp = dt.datetime()}));
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106 end
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107 pump:push(stanza);
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108 end
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109 return true;
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110 end
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111 end
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112 end);
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113
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114 module:hook("csi-client-active", function (event)
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115 local session = event.origin;
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116 if session.pump then
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117 session.pump:resume();
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118 end
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119 end);
aeb054ee88c5 mod_csi_simple: Import modified version of mod_csi_pump from prosody-modules
Kim Alvefur <zash@zash.se>
parents:
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120