annotate mod_restrict_xmpp/mod_restrict_xmpp.lua @ 5424:b45d9a81b3da

mod_http_oauth2: Revert role selector, going to try something else Back out f2c7bb3af600 Allowing only a single role to be encoded into the grant takes away the possibility of having multiple roles in the grant, one of which is selected when issuing an access token. It also takes away the ability to have zero roles granted, which could be useful e.g. when you only need OIDC scopes.
author Kim Alvefur <zash@zash.se>
date Sun, 07 May 2023 19:40:57 +0200
parents a1f49586d28a
children 825c6fb76c48
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1 local array = require "util.array";
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2 local it = require "util.iterators";
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3 local set = require "util.set";
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4 local st = require "util.stanza";
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5
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6 module:default_permission("prosody:user", "xmpp:federate");
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7 module:hook("route/remote", function (event)
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8 if not module:may("xmpp:federate", event) then
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9 if event.stanza.attr.type ~= "result" and event.stanza.attr.type ~= "error" then
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10 module:log("warn", "Access denied: xmpp:federate for %s -> %s", event.stanza.attr.from, event.stanza.attr.to);
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11 local reply = st.error_reply(event.stanza, "auth", "forbidden");
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12 event.origin.send(reply);
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13 end
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14 return true;
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15 end
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16 end);
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17
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18 local iq_namespaces = {
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19 ["jabber:iq:roster"] = "contacts";
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20 ["jabber:iq:private"] = "storage";
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21
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22 ["vcard-temp"] = "profile";
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23 ["urn:xmpp:mam:0"] = "history";
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24 ["urn:xmpp:mam:1"] = "history";
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25 ["urn:xmpp:mam:2"] = "history";
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26
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27 ["urn:xmpp:carbons:0"] = "carbons";
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28 ["urn:xmpp:carbons:1"] = "carbons";
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29 ["urn:xmpp:carbons:2"] = "carbons";
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30
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31 ["urn:xmpp:blocking"] = "blocklist";
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32
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33 ["http://jabber.org/protocol/pubsub"] = "pep";
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34 ["http://jabber.org/protocol/disco#info"] = "disco";
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35 };
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36
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37 local legacy_storage_nodes = {
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38 ["storage:bookmarks"] = "bookmarks";
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39 ["storage:rosternotes"] = "contacts";
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40 ["roster:delimiter"] = "contacts";
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41 ["storage:metacontacts"] = "contacts";
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42 };
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43
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44 local pep_nodes = {
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45 ["storage:bookmarks"] = "bookmarks";
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46 ["urn:xmpp:bookmarks:1"] = "bookmarks";
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47
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48 ["urn:xmpp:avatar:data"] = "profile";
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49 ["urn:xmpp:avatar:metadata"] = "profile";
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50 ["http://jabber.org/protocol/nick"] = "profile";
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51
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52 ["eu.siacs.conversations.axolotl.devicelist"] = "omemo";
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53 ["urn:xmpp:omemo:1:devices"] = "omemo";
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54 ["urn:xmpp:omemo:1:bundles"] = "omemo";
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55 ["urn:xmpp:omemo:2:devices"] = "omemo";
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56 ["urn:xmpp:omemo:2:bundles"] = "omemo";
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57 };
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58
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59 module:hook("pre-iq/bare", function (event)
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60 if not event.to_self then return; end
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61 local origin, stanza = event.origin, event.stanza;
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62
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63 local typ = stanza.attr.type;
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64 if typ ~= "set" and typ ~= "get" then return; end
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65 local action = typ == "get" and "read" or "write";
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66
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67 local payload = stanza.tags[1];
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68 local ns = payload and payload.attr.xmlns;
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69 local proto = iq_namespaces[ns];
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70 if proto == "pep" then
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71 local pubsub = payload:get_child("pubsub", "http://jabber.org/protocol/pubsub");
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72 local node = pubsub and #pubsub.tags == 1 and pubsub.tags[1].attr.node or nil;
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73 proto = pep_nodes[node] or "pep";
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74 if proto == "pep" and node and node:match("^eu%.siacs%.conversations%.axolotl%.bundles%.%d+$") then
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75 proto = "omemo"; -- COMPAT w/ original OMEMO
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76 end
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77 elseif proto == "storage" then
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78 local data = payload.tags[1];
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79 proto = data and legacy_storage_nodes[data.attr.xmlns] or "legacy-storage";
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80 elseif proto == "carbons" then
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81 -- This allows access to live messages
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82 proto, action = "messages", "read";
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83 elseif proto == "history" then
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84 action = "read";
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85 end
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86 local permission_name = "xmpp:account:"..(proto and (proto..":") or "")..action;
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87 if not module:may(permission_name, event) then
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88 module:log("warn", "Access denied: %s ({%s}%s) for %s", permission_name, ns, payload.name, origin.full_jid or origin.id);
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89 origin.send(st.error_reply(stanza, "auth", "forbidden", "You do not have permission to make this request ("..permission_name..")"));
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90 return true;
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91 end
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92 end);
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93
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94 --module:default_permission("prosody:restricted", "xmpp:account:read");
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95 --module:default_permission("prosody:restricted", "xmpp:account:write");
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96 module:default_permission("prosody:restricted", "xmpp:account:messages:read");
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97 module:default_permission("prosody:restricted", "xmpp:account:messages:write");
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98 for _, property_list in ipairs({ iq_namespaces, legacy_storage_nodes, pep_nodes }) do
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99 for account_property in set.new(array.collect(it.values(property_list))) do
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100 module:default_permission("prosody:restricted", "xmpp:account:"..account_property..":read");
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101 module:default_permission("prosody:restricted", "xmpp:account:"..account_property..":write");
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102 end
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103 end
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104
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105 module:default_permission("prosody:restricted", "xmpp:account:presence:write");
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106 module:hook("pre-presence/bare", function (event)
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107 if not event.to_self then return; end
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108 local stanza = event.stanza;
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109 if not module:may("xmpp:account:presence:write", event) then
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110 module:log("warn", "Access denied: xmpp:account:presence:write for %s", event.origin.full_jid or event.origin.id);
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111 event.origin.send(st.error_reply(stanza, "auth", "forbidden", "You do not have permission to send account presence"));
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112 return true;
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113 end
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114 local priority = stanza:get_child_text("priority");
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
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115 if priority ~= "-1" then
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
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116 if not module:may("xmpp:account:messages:read", event) then
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
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117 module:log("warn", "Access denied: xmpp:account:messages:read for %s", event.origin.full_jid or event.origin.id);
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118 event.origin.send(st.error_reply(stanza, "auth", "forbidden", "You do not have permission to receive messages (use presence priority -1)"));
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
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119 return true;
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
Matthew Wild <mwild1@gmail.com>
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120 end
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
Matthew Wild <mwild1@gmail.com>
parents:
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121 end
459a4001c1d9 mod_restrict_xmpp: XMPP-layer access control using Prosody's permissions API
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122 end);