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annotate mod_cloud_notify_filters/mod_cloud_notify_filters.lua @ 5818:d3b69859553a

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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
parents ba94a5301985
children
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1 local jid = require "util.jid";
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2
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3 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
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4
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5 local xmlns_push = "urn:xmpp:push:0";
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6 local xmlns_push_filter_unknown = "tigase:push:filter:ignore-unknown:0";
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7 local xmlns_push_filter_muted = "tigase:push:filter:muted:0";
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8 local xmlns_push_filter_groupchat = "tigase:push:filter:groupchat:0";
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9 local xmlns_references = "urn:xmpp:reference:0";
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10
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11 -- https://xeps.tigase.net//docs/push-notifications/encrypt/#41-discovering-support
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12 local function account_disco_info(event)
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13 event.reply:tag("feature", {var=xmlns_push_filter_unknown}):up();
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14 event.reply:tag("feature", {var=xmlns_push_filter_muted}):up();
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15 event.reply:tag("feature", {var=xmlns_push_filter_groupchat}):up();
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16 end
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17 module:hook("account-disco-info", account_disco_info);
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19 function handle_register(event)
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20 local enable = event.stanza:get_child("enable", xmlns_push);
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21
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22 local filter_unknown = enable:get_child("ignore-unknown", xmlns_push_filter_unknown);
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23 if filter_unknown then
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24 event.push_info.filter_unknown = true;
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25 end
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26
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27 local filter_muted = enable:get_child("muted", xmlns_push_filter_muted);
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28 if filter_muted then
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29 local muted_jids = {};
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30 for item in filter_muted:childtags("item") do
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31 local room_jid = jid.prep(item.attr.jid);
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32 if not room_jid then
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33 module:log("warn", "Skipping invalid JID: <%s>", room_jid);
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34 else
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35 muted_jids[room_jid] = true;
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36 end
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37 end
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38 event.push_info.muted_jids = muted_jids;
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39 end
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40
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41 local filter_groupchat = enable:get_child("groupchat", xmlns_push_filter_groupchat);
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42 if filter_groupchat then
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43 local groupchat_rules = {};
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44 for item in filter_groupchat:childtags("room") do
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45 local room_jid = jid.prep(item.attr.jid);
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46 if not room_jid then
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47 module:log("warn", "Skipping invalid JID: <%s>", item.attr.jid);
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48 else
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49 groupchat_rules[room_jid] = {
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50 when = item.attr.allow;
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51 nick = item.attr.nick;
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52 };
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53 end
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54 end
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55 event.push_info.groupchat_rules = groupchat_rules;
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56 end
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57 end
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58
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59 function handle_push(event)
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60 local push_info = event.push_info;
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61 local stanza = event.original_stanza;
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62 local user_name, user_host = jid.split(stanza.attr.to);
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63 local sender_jid = jid.bare(stanza.attr.from);
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64
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65 if push_info.filter_unknown then
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66 if user_host == module.host and not is_contact_subscribed(user_name, user_host, sender_jid) then
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67 event.reason = "Filtering: unknown sender";
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68 return true;
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69 end
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70 end
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71
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72 if push_info.muted_jids then
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73 if push_info.muted_jids[sender_jid] then
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74 event.reason = "Filtering: muted";
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75 return true;
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76 end
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77 end
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78
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79 if stanza.attr.type == "groupchat" and push_info.groupchat_rules then
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80 local rule = push_info.groupchat_rules[sender_jid];
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81 if rule then
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82 if rule.when == "never" then
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83 event.reason = "Filtering: muted group chat";
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84 return true;
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85 elseif rule.when == "mentioned" then
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86 local mentioned = false;
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87 local our_uri = "xmpp:"..jid.bare(stanza.attr.to);
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88 local our_muc_uri = rule.nick and "xmpp:"..sender_jid.."/"..rule.nick;
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89 for reference in stanza:childtags("reference", xmlns_references) do
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90 if reference.attr.type == "mention" then
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91 local mention_uri = reference.attr.uri;
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92 if mention_uri == our_uri or mention_uri == our_muc_uri then
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93 mentioned = true;
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94 break;
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95 end
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96 end
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97 end
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98 if not mentioned then
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99 event.reason = "Filtering: not mentioned";
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100 return true;
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101 end
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102 end
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103 end
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104 end
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105 end
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106
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107 module:hook("cloud_notify/registration", handle_register);
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108 module:hook("cloud_notify/push", handle_push);
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109