Mercurial > prosody-modules

annotate mod_csi_battery_saver/mod_csi_battery_saver.lua @ 3568:6b3181fe5617

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mod_auth_token: Timezone fix for TOTP checking luatz.time() returns milliseconds since epoch which is in UTC time, so we don't need to convert to UTC with gmtime. By calling gmtime, TOTP validation was failing when this module wasn't running on machine set to UTC time.
author JC Brand <jc@opkode.com>
date Thu, 02 May 2019 11:07:27 +0200
parents 972b21d34306
children 6b0db0f2d57a
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1 -- Copyright (C) 2016 Kim Alvefur
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2 -- Copyright (C) 2017 Thilo Molitor
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3 --
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4
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5 local filter_muc = module:get_option_boolean("csi_battery_saver_filter_muc", false);
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6
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7 module:depends"csi"
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8 if filter_muc then module:depends"track_muc_joins"; end -- only depend on this module if we actually use it
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9 local s_match = string.match;
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10 local s_sub = string.sub;
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11 local jid = require "util.jid";
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12 local new_queue = require "util.queue".new;
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13 local datetime = require "util.datetime";
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14 local st = require "util.stanza";
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16 local xmlns_delay = "urn:xmpp:delay";
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17
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18 -- a log id for this module instance
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19 local id = s_sub(require "util.hashes".sha256(datetime.datetime(), true), 1, 4);
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20
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21
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22 -- Returns a forwarded message, and either "in" or "out" depending on the direction
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parents: 3109
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23 -- Returns nil if the message is not a carbon
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24 local function extract_carbon(stanza)
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25 local carbon = stanza:child_with_ns("urn:xmpp:carbons:2") or stanza:child_with_ns("urn:xmpp:carbons:1");
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26 if not carbon then return; end
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27 local direction = carbon.name == "sent" and "out" or "in";
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28 local forward = carbon:get_child("forwarded", "urn:xmpp:forward:0");
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29 local message = forward and forward:child_with_name("message") or nil;
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30 if not message then return; end
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31 return message, direction;
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32 end
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33
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34 local function new_pump(output, ...)
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35 -- luacheck: ignore 212/self
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36 local q = new_queue(...);
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37 local flush = true;
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38 function q:pause()
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39 flush = false;
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40 end
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41 function q:resume()
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42 flush = true;
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43 return q:flush();
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44 end
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45 local push = q.push;
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46 function q:push(item)
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47 local ok = push(self, item);
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48 if not ok then
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49 q:flush();
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50 output(item, self);
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51 elseif flush then
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52 return q:flush();
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53 end
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54 return true;
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55 end
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56 function q:flush(alternative_output)
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57 local out = alternative_output or output;
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58 local item = self:pop();
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59 while item do
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60 out(item, self);
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61 item = self:pop();
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62 end
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63 return true;
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64 end
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65 return q;
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66 end
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67
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68 local function is_stamp_needed(stanza, session)
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69 local st_name = stanza and stanza.name or nil;
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70 if st_name == "presence" then
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71 return true;
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72 elseif st_name == "message" then
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73 if stanza:get_child("delay", xmlns_delay) then return false; end
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74 if stanza.attr.type == "chat" or stanza.attr.type == "groupchat" then return true; end
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75 end
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76 return false;
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77 end
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78
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79 local function add_stamp(stanza, session)
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80 local bare_jid = jid.bare(session.full_jid or session.host);
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81 stanza = stanza:tag("delay", { xmlns = xmlns_delay, from = bare_jid, stamp = datetime.datetime()});
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82 return stanza;
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83 end
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84
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85 local function is_important(stanza, session)
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86 local st_name = stanza and stanza.name or nil;
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87 if not st_name then return true; end -- nonzas are always important
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88 if st_name == "presence" then
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89 -- TODO check for MUC status codes?
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90 return false;
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91 elseif st_name == "message" then
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92 -- unpack carbon copies
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parents: 3109
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93 local carbon, stanza_direction = extract_carbon(stanza);
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94 --session.log("debug", "mod_csi_battery_saver(%s): stanza_direction = %s, carbon = %s, stanza = %s", id, stanza_direction, carbon and "true" or "false", tostring(stanza));
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95 if carbon then stanza = carbon; end
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96
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97 local st_type = stanza.attr.type;
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98 -- headline message are always not important
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99 if st_type == "headline" then return false; end
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100
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parents: 2747
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101 -- chat markers (XEP-0333) are important, too, because some clients use them to update their notifications
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parents: 3109
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102 if stanza:child_with_ns("urn:xmpp:chat-markers:0") then return true; end;
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103
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parents: 2747
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104 -- carbon copied outgoing messages are important (some clients update their notifications upon receiving those) --> don't return false here
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105 --if carbon and stanza_direction == "out" then return false; end
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Michel Le Bihan <michel@lebihan.pl>
parents: 2757
diff changeset
106
2754
d1aa5fc005f7 mod_csi_battery_saver: Consider chat markers and outgoing carbon copies as important.
tmolitor <thilo@eightysoft.de>
parents: 2747
diff changeset
107 -- We can't check for body contents in encrypted messages, so let's treat them as important
d1aa5fc005f7 mod_csi_battery_saver: Consider chat markers and outgoing carbon copies as important.
tmolitor <thilo@eightysoft.de>
parents: 2747
diff changeset
108 -- Some clients don't even set a body or an empty body for encrypted messages
2946
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Michel Le Bihan <michel@lebihan.pl>
parents: 2757
diff changeset
109
2735
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
110 -- check omemo https://xmpp.org/extensions/inbox/omemo.html
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parents: 2606
diff changeset
111 if stanza:get_child("encrypted", "eu.siacs.conversations.axolotl") or stanza:get_child("encrypted", "urn:xmpp:omemo:0") then return true; end
2946
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Michel Le Bihan <michel@lebihan.pl>
parents: 2757
diff changeset
112
2735
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
113 -- check xep27 pgp https://xmpp.org/extensions/xep-0027.html
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
114 if stanza:get_child("x", "jabber:x:encrypted") then return true; end
2946
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Michel Le Bihan <michel@lebihan.pl>
parents: 2757
diff changeset
115
2735
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
116 -- check xep373 pgp (OX) https://xmpp.org/extensions/xep-0373.html
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
117 if stanza:get_child("openpgp", "urn:xmpp:openpgp:0") then return true; end
2946
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Michel Le Bihan <michel@lebihan.pl>
parents: 2757
diff changeset
118
2606
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
119 local body = stanza:get_child_text("body");
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
120 if st_type == "groupchat" then
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
121 if stanza:get_child_text("subject") then return true; end
2746
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
122 if body == nil or body == "" then return false; end
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
123 -- body contains text, let's see if we want to process it further
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
124 if filter_muc then
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
125 if body:find(session.username, 1, true) then return true; end
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
126 local rooms = session.rooms_joined;
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
127 if not rooms then return false; end
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
128 local room_nick = rooms[jid.bare(stanza_direction == "in" and stanza.attr.from or stanza.attr.to)];
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
129 if room_nick and body:find(room_nick, 1, true) then return true; end
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
130 return false;
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
131 else
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
132 return true;
d3a2f4bdaf09 mod_csi_battery_saver: Add config option for better muc handling
tmolitor <thilo@eightysoft.de>
parents: 2745
diff changeset
133 end
2606
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
134 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
135 return body ~= nil and body ~= "";
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
136 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
137 return true;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
138 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
139
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
140 module:hook("csi-client-inactive", function (event)
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
141 local session = event.origin;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
142 if session.pump then
2745
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
143 session.log("debug", "mod_csi_battery_saver(%s): Client is inactive, buffering unimportant outgoing stanzas", id);
2606
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
144 session.pump:pause();
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
145 else
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
146 session.log("debug", "mod_csi_battery_saver(%s): Client is inactive the first time, initializing module for this session", id);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
147 local pump = new_pump(session.send, 100);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
148 pump:pause();
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
149 session.pump = pump;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
150 session._pump_orig_send = session.send;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
151 function session.send(stanza)
2745
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
152 session.log("debug", "mod_csi_battery_saver(%s): Got outgoing stanza: <%s>", id, tostring(stanza.name or stanza));
2606
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
153 local important = is_important(stanza, session);
2742
2e30bb3a10d5 mod_csi_battery_saver: Fix a bug introduced by commit f43c77c69a8a
tmolitor <thilo@eightysoft.de>
parents: 2741
diff changeset
154 -- clone stanzas before adding delay stamp and putting them into the queue
2e30bb3a10d5 mod_csi_battery_saver: Fix a bug introduced by commit f43c77c69a8a
tmolitor <thilo@eightysoft.de>
parents: 2741
diff changeset
155 if st.is_stanza(stanza) then stanza = st.clone(stanza); end
2735
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tmolitor <thilo@eightysoft.de>
parents: 2606
diff changeset
156 -- add delay stamp to unimportant (buffered) stanzas that can/need be stamped
2606
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
157 if not important and is_stamp_needed(stanza, session) then stanza = add_stamp(stanza, session); end
2742
2e30bb3a10d5 mod_csi_battery_saver: Fix a bug introduced by commit f43c77c69a8a
tmolitor <thilo@eightysoft.de>
parents: 2741
diff changeset
158 -- add stanza to outgoing queue and flush the buffer if needed
2606
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
159 pump:push(stanza);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
160 if important then
2741
69248dcd7cff mod_csi_battery_saver: Fix interaction with smacks hibernation
tmolitor <thilo@eightysoft.de>
parents: 2737
diff changeset
161 session.log("debug", "mod_csi_battery_saver(%s): Encountered important stanza, flushing buffer: <%s>", id, tostring(stanza.name or stanza));
2606
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
162 pump:flush();
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
163 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
164 return true;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
165 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
166 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
167 end);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
168
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
169 module:hook("csi-client-active", function (event)
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
170 local session = event.origin;
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
171 if session.pump then
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
172 session.log("debug", "mod_csi_battery_saver(%s): Client is active, resuming direct delivery", id);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
173 session.pump:resume();
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
174 end
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
175 end);
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
176
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tmolitor <thilo@eightysoft.de>
parents: 2946
diff changeset
177 -- clean up this session on hibernation end
2745
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
178 -- but don't change resumed.send(), it is already overwritten with session.send() by the smacks module
b62cec32680e mod_csi_battery_saver: Fix bug when smacks is resumed before hibernating
tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
179 module:hook("smacks-hibernation-end", function (event)
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
180 local session = event.resumed;
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
181 if session.pump then
3109
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tmolitor <thilo@eightysoft.de>
parents: 2946
diff changeset
182 session.log("debug", "mod_csi_battery_saver(%s): Hibernation ended, flushing buffer and afterwards disabling for this session", id);
2745
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
183 session.pump:flush(session.send); -- use the fresh session.send() introduced by the smacks resume
b62cec32680e mod_csi_battery_saver: Fix bug when smacks is resumed before hibernating
tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
184 -- don't reset session.send() because this is not the send previously overwritten by this module, but a fresh one
b62cec32680e mod_csi_battery_saver: Fix bug when smacks is resumed before hibernating
tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
185 -- session.send = session._pump_orig_send;
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
186 session.pump = nil;
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
187 session._pump_orig_send = nil;
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parents: 2742
diff changeset
188 end
3109
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tmolitor <thilo@eightysoft.de>
parents: 2946
diff changeset
189 end, 1000); -- high priority to prevent message reordering on resumption (we want to flush our buffers *first*)
2741
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parents: 2737
diff changeset
190
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
191 function module.unload()
538c54d2dab3 mod_csi_battery_saver: CSI module to save battery on mobile devices, based on mod_csi_pump
tmolitor <thilo@eightysoft.de>
parents:
diff changeset
192 module:log("info", "%s: Unloading module, flushing all buffers", id);
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
193 local host_sessions = prosody.hosts[module.host].sessions;
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
194 for _, user in pairs(host_sessions) do
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
195 for _, session in pairs(user.sessions) do
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
196 if session.pump then
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
197 session.log("debug", "mod_csi_battery_saver(%s): Flushing buffer and restoring to original session.send()", id);
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
198 session.pump:flush();
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tmolitor <thilo@eightysoft.de>
parents: 2742
diff changeset
199 session.send = session._pump_orig_send;
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parents: 2742
diff changeset
200 session.pump = nil;
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parents: 2742
diff changeset
201 session._pump_orig_send = nil;
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parents: 2742
diff changeset
202 end
2606
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parents:
diff changeset
203 end
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
204 end
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
205 end
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parents:
diff changeset
206
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tmolitor <thilo@eightysoft.de>
parents:
diff changeset
207 module:log("info", "%s: Successfully loaded module", id);