prosody-modules
8474a3b80200
mod_offline_email/mod_offline_email.lua

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mod_offline_email/mod_offline_email.lua @ 5160:8474a3b80200

mod_firewall: Fix 'is_admin' internal dependency rule #1797 (thanks diane) Looks like the boolean logic was inverted here. Instead, for now, simply check if is_admin is there. It is deprecated in trunk and was briefly removed before being brought back with a 'deprecated' warning as part of the new roles and permissions work. Making this dependency conditioned on the existence of the underlying function should make it work until it actually goes away for real.
author Kim Alvefur <zash@zash.se>
date Fri, 27 Jan 2023 23:06:25 +0100
parent 4231:ee724c7fa8e0
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1
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2 local jid_bare = require "util.jid".bare;
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3 local os_time = os.time;
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4 local t_concat = table.concat;
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6 prosody.unlock_globals(); -- LuaSocket wants to pollute the global scope
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7 local smtp = require "socket.smtp";
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8 prosody.lock_globals();
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9
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10 local smtp_server = module:get_option_string("smtp_server", "localhost");
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11 local smtp_user = module:get_option_string("smtp_username");
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12 local smtp_pass = module:get_option_string("smtp_password");
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14 local smtp_address = module:get_option("smtp_from") or ((smtp_user or "xmpp").."@"..(smtp_server or module.host));
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16 local queue_offline_emails = module:get_option("queue_offline_emails");
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17 if queue_offline_emails == true then queue_offline_emails = 300; end
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18
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19 local send_message_as_email;
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20
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21 module:hook("message/offline/handle", function(event)
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22 local stanza = event.stanza;
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23 local text = stanza:get_child_text("body");
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24 if text then
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25 return send_message_as_email(jid_bare(stanza.attr.to), jid_bare(stanza.attr.from), text);
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26 end
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27 end, 1);
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29 function send_message_as_email(address, from_address, message_text, subject)
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30 module:log("info", "Forwarding offline message to %s via email", address);
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31 local rcpt = "<"..address..">";
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32
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33 local mesgt = {
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34 headers = {
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35 ["content-type"] = 'text/plain; charset=utf-8';
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36 to = address;
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37 subject = subject or ("Offline message from "..jid_bare(from_address));
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38 };
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39 body = message_text;
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40 };
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42 local ok, err = smtp.send{ from = smtp_address, rcpt = rcpt, source = smtp.message(mesgt),
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43 server = smtp_server, user = smtp_user, password = smtp_pass };
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45 if not ok then
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46 module:log("error", "Failed to deliver to %s: %s", tostring(address), tostring(err));
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47 return;
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48 end
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49 return true;
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50 end
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51
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52 if queue_offline_emails then
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53 local queues = {};
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54 local real_send_message_as_email = send_message_as_email;
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55 function send_message_as_email(address, from_address, message_text)
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56 local pair_key = address.."\0"..from_address;
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57 local queue = queues[pair_key];
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58 if not queue then
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59 queue = { from = smtp_address, to = address, messages = {} };
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60 queues[pair_key] = queue;
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62 module:add_timer(queue_offline_emails+5, function ()
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63 module:log("info", "Checking on %s", from_address);
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64 local current_time = os_time();
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65 local diff = current_time - queue.last_message_time;
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66 if diff > queue_offline_emails then
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67 module:log("info", "Enough silence, sending...");
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68 real_send_message_as_email(address, from_address, t_concat(queue.messages, "\n"), "You have "..#queue.messages.." offline message"..(#queue.messages == 1 and "" or "s").." from "..from_address)
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69 else
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70 module:log("info", "Next check in %d", queue_offline_emails - diff + 5);
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71 return queue_offline_emails - diff + 5;
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72 end
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73 end);
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74 end
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75
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76 queue.last_message_time = os_time();
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77
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78 local messages = queue.messages;
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79 messages[#messages+1] = message_text;
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80 return true;
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81 end
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82 end