1 -- XEP-0357: Push (aka: My mobile OS vendor won't let me have persistent TCP connections) |
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2 -- Copyright (C) 2015 Kim Alvefur |
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3 -- |
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4 -- This file is MIT/X11 licensed. |
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5 |
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6 local st = require"util.stanza"; |
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7 local jid = require"util.jid"; |
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8 local dataform = require"util.dataforms".new; |
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9 |
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10 local xmlns_push = "urn:xmpp:push:0"; |
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11 |
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12 module:add_feature(xmlns_push); |
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13 |
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14 local push_enabled = module:shared("push-enabled-users"); |
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15 |
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16 module:hook("iq-set/self/"..xmlns_push..":enable", function (event) |
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17 local origin, stanza = event.origin, event.stanza; |
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18 local push_jid, push_node = stanza.tags[1].attr.jid, stanza.tags[1].attr.node; |
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19 if not push_jid or not push_node then |
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20 origin.send(st.error_reply(stanza, "modify", "bad-request", "Missing jid or node")); |
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21 return true; |
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22 end |
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23 local publish_options = stanza.tags[1].tags[1]; |
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24 if publish_options and ( publish_options.name ~= "x" or publish_options.attr.xmlns ~= "jabber:x:data" ) then |
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25 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid publish options")); |
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26 return true; |
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27 end |
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28 local user_push_services = push_enabled[origin.username]; |
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29 if not user_push_services then |
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30 user_push_services = {}; |
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31 end |
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32 user_push_services[push_jid .. "<" .. push_node] = { |
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33 jid = push_jid; |
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34 node = push_node; |
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35 count = 0; |
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36 options = publish_options; |
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37 }; |
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38 origin.send(st.reply(stanza)); |
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39 return true; |
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40 end); |
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41 |
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42 module:hook("iq-set/self/"..xmlns_push..":disable", function (event) |
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43 local origin, stanza = event.origin, event.stanza; |
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44 local push_jid, push_node = stanza.tags[1].attr.jid, stanza.tags[1].attr.node; |
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45 if not push_jid or not push_node then |
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46 origin.send(st.error_reply(stanza, "modify", "bad-request", "Missing jid or node")); |
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47 return true; |
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48 end |
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49 local user_push_services = push_enabled[origin.username]; |
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50 if user_push_services then |
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51 user_push_services[push_jid .. "<" .. push_node] = nil; |
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52 end |
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53 origin.send(st.reply(stanza)); |
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54 return true; |
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55 end); |
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56 |
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57 local push_form = dataform { |
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58 { name = "FORM_TYPE"; type = "hidden"; value = "urn:xmpp:push:summary"; }; |
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59 { name = "message-count"; type = "text-single"; }; |
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60 { name = "pending-subscription-count"; type = "text-single"; }; |
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61 { name = "last-message-sender"; type = "jid-single"; }; |
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62 { name = "last-message-body"; type = "text-single"; }; |
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63 }; |
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64 |
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65 module:hook("message/offline/handle", function(event) |
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66 local origin, stanza = event.origin, event.stanza; |
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67 local to = stanza.attr.to; |
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68 local node = to and jid.split(to) or origin.username; |
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69 local user_push_services = push_enabled[origin.username]; |
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70 if not user_push_services then return end |
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71 |
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72 for _, push_info in pairs(push_info) do |
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73 push_info.count = push_info.count + 1; |
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74 local push_jid, push_node = push_info.jid, push_info.node; |
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75 local push_publish = st.iq({ to = push_jid, from = module.host, type = "set", id = "push" }) |
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76 :tag("pubsub", { xmlns = "http://jabber.org/protocol/pubsub" }) |
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77 :tag("publish", { node = push_node }); |
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78 push_publish:add_child(push_form:form({ |
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79 ["message-count"] = tostring(push_info.count); |
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80 ["last-message-sender"] = stanza.attr.from; |
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81 ["last-message-body"] = stanza:get_child_text("body"); |
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82 })); |
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83 push_publish:up(); -- / publish |
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84 if push_info.options then |
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85 push_publish:tag("publish-options"):add_child(push_info.options); |
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86 end |
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87 module:send(push_publish); |
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88 end |
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89 end, 1); |
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90 |
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91 module:hook("message/offline/broadcast", function(event) |
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92 local user_push_services = push_enabled[origin.username]; |
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93 if not user_push_services then return end |
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94 |
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95 for _, push_info in pairs(push_info) do |
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96 if push_info then |
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97 push_info.count = 0; |
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98 end |
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99 end |
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100 end, 1); |
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