prosody-modules
d3b69859553a
mod_offline_email/mod_offline_email.lua

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mod_offline_email/mod_offline_email.lua @ 5841:d3b69859553a

mod_password_policy: Change error type from 'cancel' to 'modify' This makes more sense, as the problem relates to the data that has been entered, and therefore the request could be retried with different data.
author Matthew Wild <mwild1@gmail.com>
date Mon, 08 Jan 2024 17:28:39 +0000
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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44
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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