annotate mod_seclabels/mod_seclabels.lua @ 684:27529031890b

mod_host_guard: now a proper error is returned when stanzas are routed to a filtered remote server (thanks Zash)
author Marco Cirillo <maranda@lightwitch.org>
date Sun, 27 May 2012 02:44:06 +0000
parents 48b615229509
children 5276e1fc26b6
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1 local st = require "util.stanza";
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2
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3 local xmlns_label = "urn:xmpp:sec-label:0";
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4 local xmlns_label_catalog = "urn:xmpp:sec-label:catalog:2";
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5 local xmlns_label_catalog_old = "urn:xmpp:sec-label:catalog:0"; -- COMPAT
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7 module:add_feature(xmlns_label);
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8 module:add_feature(xmlns_label_catalog);
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9 module:add_feature(xmlns_label_catalog_old);
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10
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11 module:hook("account-disco-info", function(event) -- COMPAT
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12 local stanza = event.stanza;
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13 stanza:tag('feature', {var=xmlns_label}):up();
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14 stanza:tag('feature', {var=xmlns_label_catalog}):up();
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15 end);
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16
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17 local default_labels = {
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18 {
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19 name = "Unclassified",
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20 label = true,
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21 default = true,
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22 },
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23 Classified = {
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24 SECRET = { color = "black", bgcolor = "aqua", label = "THISISSECRET" };
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25 PUBLIC = { label = "THISISPUBLIC" };
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26 };
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27 };
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28 local catalog_name, catalog_desc, labels;
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29 local function get_conf()
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30 catalog_name = module:get_option_string("security_catalog_name", "Default");
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31 catalog_desc = module:get_option_string("security_catalog_desc", "My labels");
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32 labels = module:get_option("security_labels", default_labels);
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33 end
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34 module:hook_global("config-reloaded",get_conf);
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35 get_conf();
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36
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37 function handle_catalog_request(request)
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38 local catalog_request = request.stanza.tags[1];
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39 local reply = st.reply(request.stanza)
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40 :tag("catalog", {
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41 xmlns = catalog_request.attr.xmlns,
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42 to = catalog_request.attr.to,
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43 name = catalog_name,
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44 desc = catalog_desc
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45 });
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47 local function add_labels(catalog, labels, selector)
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48 local function add_item(item, name)
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49 local name = name or item.name;
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50 if item.label then
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51 if catalog_request.attr.xmlns == xmlns_label_catalog then
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52 catalog:tag("item", {
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53 selector = selector..name,
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54 default = item.default and "true" or nil,
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55 }):tag("securitylabel", { xmlns = xmlns_label })
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56 else -- COMPAT
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57 catalog:tag("securitylabel", {
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58 xmlns = xmlns_label,
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59 selector = selector..name,
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60 default = item.default and "true" or nil,
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61 })
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62 end
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63 if item.display or item.color or item.bgcolor then
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64 catalog:tag("displaymarking", {
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65 fgcolor = item.color,
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66 bgcolor = item.bgcolor,
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67 }):text(item.display or name):up();
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68 end
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69 if type(item.label) == "string" then
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70 catalog:tag("label"):text(item.label):up();
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71 elseif type(item.label) == "table" then
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72 catalog:tag("label"):add_child(item.label):up();
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73 end
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74 catalog:up();
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75 if catalog_request.attr.xmlns == xmlns_label_catalog then
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76 catalog:up();
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77 end
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78 else
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79 add_labels(catalog, item, (selector or "")..name.."|");
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80 end
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81 end
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82 for i = 1,#labels do
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83 add_item(labels[i])
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84 end
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85 for name, child in pairs(labels) do
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86 if type(name) == "string" then
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87 add_item(child, name)
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88 end
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89 end
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90 end
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91 -- TODO query remote servers
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92 --[[ FIXME later
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93 labels = module:fire_event("sec-label-catalog", {
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94 to = catalog_request.attr.to,
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95 request = request; -- or just origin?
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96 labels = labels;
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97 }) or labels;
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98 --]]
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99 add_labels(reply, labels, "");
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100 request.origin.send(reply);
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101 return true;
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102 end
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103 module:hook("iq/host/"..xmlns_label_catalog..":catalog", handle_catalog_request);
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104 module:hook("iq/self/"..xmlns_label_catalog..":catalog", handle_catalog_request); -- COMPAT
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105 module:hook("iq/self/"..xmlns_label_catalog_old..":catalog", handle_catalog_request); -- COMPAT