Mercurial > prosody-modules
annotate mod_offline_email/mod_offline_email.lua @ 1709:59ba224bf145
mod_delegation: XEP-0355 implementation, first draft (configuration management + delegations advertising)
author | Goffi <goffi@goffi.org> |
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date | Fri, 17 Apr 2015 21:02:22 +0200 |
parents | f1a0a0754b87 |
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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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5 local smtp = require "socket.smtp"; |
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6 |
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7 local smtp_server = module:get_option_string("smtp_server", "localhost"); |
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8 local smtp_user = module:get_option_string("smtp_username"); |
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9 local smtp_pass = module:get_option_string("smtp_password"); |
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10 |
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11 local smtp_address = module:get_option("smtp_from") or ((smtp_user or "xmpp").."@"..(smtp_server or module.host)); |
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12 |
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13 local queue_offline_emails = module:get_option("queue_offline_emails"); |
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14 if queue_offline_emails == true then queue_offline_emails = 300; end |
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16 local send_message_as_email; |
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17 |
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18 module:hook("message/offline/handle", function(event) |
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19 local stanza = event.stanza; |
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20 local text = stanza:get_child_text("body"); |
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21 if text then |
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22 return send_message_as_email(jid_bare(stanza.attr.to), jid_bare(stanza.attr.from), text); |
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23 end |
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24 end, 1); |
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25 |
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26 function send_message_as_email(address, from_address, message_text, subject) |
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27 module:log("info", "Forwarding offline message to %s via email", address); |
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28 local rcpt = "<"..address..">"; |
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29 |
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30 local mesgt = { |
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31 headers = { |
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32 to = address; |
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33 subject = subject or ("Offline message from "..jid_bare(from_address)); |
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34 }; |
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35 body = message_text; |
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36 }; |
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37 |
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38 local ok, err = smtp.send{ from = smtp_address, rcpt = rcpt, source = smtp.message(mesgt), |
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39 server = smtp_server, user = smtp_user, password = smtp_pass }; |
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40 |
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41 if not ok then |
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42 module:log("error", "Failed to deliver to %s: %s", tostring(address), tostring(err)); |
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43 return; |
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44 end |
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45 return true; |
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46 end |
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47 |
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48 if queue_offline_emails then |
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49 local queues = {}; |
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50 local real_send_message_as_email = send_message_as_email; |
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51 function send_message_as_email(address, from_address, message_text) |
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52 local pair_key = address.."\0"..from_address; |
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53 local queue = queues[pair_key]; |
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54 if not queue then |
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55 queue = { from = smtp_address, to = address, messages = {} }; |
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56 queues[pair_key] = queue; |
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57 |
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58 module:add_timer(queue_offline_emails+5, function () |
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59 module:log("info", "Checking on %s", from_address); |
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60 local current_time = os_time(); |
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61 local diff = current_time - queue.last_message_time; |
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62 if diff > queue_offline_emails then |
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63 module:log("info", "Enough silence, sending..."); |
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64 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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65 else |
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66 module:log("info", "Next check in %d", queue_offline_emails - diff + 5); |
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67 return queue_offline_emails - diff + 5; |
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68 end |
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69 end); |
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70 end |
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71 |
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72 queue.last_message_time = os_time(); |
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73 |
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74 local messages = queue.messages; |
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75 messages[#messages+1] = message_text; |
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76 return true; |
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77 end |
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78 end |