Mercurial > prosody-modules

annotate mod_seclabels/mod_seclabels.lua @ 4730:1da4b815d2fe

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mod_cloud_notify: Identify (and immediately push) urgent stanzas, e.g. calls This covers the following things: - A session that appears online, but has a broken TCP connection - Clients such as Siskin and Snikket iOS that require a push for calls to work It allows the stanza to be pushed immediately instead of waiting for the session to hibernate or an ack to timeout. It shouldn't break any existing cases.
author Matthew Wild <mwild1@gmail.com>
date Wed, 27 Oct 2021 19:12:03 +0100
parents 7dbde05b48a9
children
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1 local st = require "util.stanza";
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2 local xml = require "util.xml";
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3
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4 local xmlns_label = "urn:xmpp:sec-label:0";
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5 local xmlns_label_catalog = "urn:xmpp:sec-label:catalog:2";
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6 local xmlns_label_catalog_old = "urn:xmpp:sec-label:catalog:0"; -- COMPAT
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7
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8 module:add_feature(xmlns_label);
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9 module:add_feature(xmlns_label_catalog);
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10 module:add_feature(xmlns_label_catalog_old);
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11
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12 module:hook("account-disco-info", function(event) -- COMPAT
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13 local stanza = event.stanza;
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14 if stanza then
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15 stanza:tag('feature', {var=xmlns_label}):up();
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16 stanza:tag('feature', {var=xmlns_label_catalog}):up();
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17 end;
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18 end);
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19
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20 local default_labels = {
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21 {
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22 name = "Unclassified",
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23 label = true,
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24 default = true,
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25 },
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26 Classified = {
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27 SECRET = { color = "black", bgcolor = "aqua", label = "THISISSECRET" };
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28 PUBLIC = { label = "THISISPUBLIC" };
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29 };
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30 };
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31 local catalog_name = module:get_option_string("security_catalog_name", "Default");
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32 local catalog_desc = module:get_option_string("security_catalog_desc", "My labels");
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33 local labels = module:get_option("security_labels", default_labels);
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34
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35 function handle_catalog_request(request)
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36 local catalog_request = request.stanza.tags[1];
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37 local reply = st.reply(request.stanza)
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38 :tag("catalog", {
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39 xmlns = catalog_request.attr.xmlns,
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40 to = catalog_request.attr.to,
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41 name = catalog_name,
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42 desc = catalog_desc
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43 });
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44
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45 local function add_labels(catalog, labels, selector)
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46 local function add_item(item, name)
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47 local name = name or item.name;
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48 if item.label then
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49 if catalog_request.attr.xmlns == xmlns_label_catalog then
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50 catalog:tag("item", {
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51 selector = selector..name,
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52 default = item.default and "true" or nil,
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53 }):tag("securitylabel", { xmlns = xmlns_label })
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54 else -- COMPAT
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55 catalog:tag("securitylabel", {
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56 xmlns = xmlns_label,
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57 selector = selector..name,
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58 default = item.default and "true" or nil,
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59 })
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60 end
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61 if item.display or item.color or item.bgcolor then
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62 catalog:tag("displaymarking", {
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63 fgcolor = item.color,
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64 bgcolor = item.bgcolor,
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65 }):text(item.display or name):up();
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66 end
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67 if item.label == true then
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68 catalog:tag("label"):text(name):up();
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69 elseif type(item.label) == "string" then
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70 -- TODO Do we need anything other than XML parsing?
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71 if item.label:sub(1,1) == "<" then
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72 catalog:tag("label"):add_child(xml.parse(item.label)):up();
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73 else
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74 catalog:tag("label"):text(item.label):up();
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75 end
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76 elseif type(item.label) == "table" then
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77 catalog:tag("label"):add_child(item.label):up();
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78 end
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79 catalog:up();
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80 if catalog_request.attr.xmlns == xmlns_label_catalog then
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81 catalog:up();
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82 end
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83 else
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84 add_labels(catalog, item, (selector or "")..name.."|");
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85 end
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86 end
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87 for i = 1,#labels do
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88 add_item(labels[i])
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89 end
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90 for name, child in pairs(labels) do
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91 if type(name) == "string" then
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92 add_item(child, name)
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93 end
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94 end
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95 end
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96 -- TODO query remote servers
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97 --[[ FIXME later
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98 labels = module:fire_event("sec-label-catalog", {
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99 to = catalog_request.attr.to,
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100 request = request; -- or just origin?
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101 labels = labels;
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102 }) or labels;
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103 --]]
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104 add_labels(reply, labels, "");
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105 request.origin.send(reply);
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106 return true;
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107 end
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108 module:hook("iq/host/"..xmlns_label_catalog..":catalog", handle_catalog_request);
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109 module:hook("iq/self/"..xmlns_label_catalog..":catalog", handle_catalog_request); -- COMPAT
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110 module:hook("iq/self/"..xmlns_label_catalog_old..":catalog", handle_catalog_request); -- COMPAT