prosody-modules
1146cb4493a9
mod_privilege/mod_privilege.lua

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mod_privilege/mod_privilege.lua @ 1658:1146cb4493a9

mod_privilege: roster get permission implemented
author Goffi <goffi@goffi.org>
date Tue, 31 Mar 2015 17:27:13 +0200
parent 1657:7116bc76663b
child 1659:495a093798eb
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1657:7116bc76663b 1658:1146cb4493a9
1 -- XEP-0356 (Privileged Entity)
2 -- Copyright (C) 2015 Jérôme Poisson
3 --
4 -- This module is MIT/X11 licensed. Please see the
5 -- COPYING file in the source package for more information.
6
7
1 local jid = require("util/jid") 8 local jid = require("util/jid")
2 local set = require("util/set") 9 local set = require("util/set")
3 local st = require("util/stanza") 10 local st = require("util/stanza")
11 local roster_manager = require("core/rostermanager")
12
4 local _ALLOWED_ROSTER = set.new({'none', 'get', 'set', 'both'}) 13 local _ALLOWED_ROSTER = set.new({'none', 'get', 'set', 'both'})
14 local _ROSTER_GET_PERM = set.new({'get', 'both'})
15 local _ROSTER_SET_PERM = set.new({'set', 'both'})
5 local _ALLOWED_MESSAGE = set.new({'none', 'outgoing'}) 16 local _ALLOWED_MESSAGE = set.new({'none', 'outgoing'})
6 local _ALLOWED_PRESENCE = set.new({'none', 'managed_entity', 'roster'}) 17 local _ALLOWED_PRESENCE = set.new({'none', 'managed_entity', 'roster'})
7 local _TO_CHECK = {roster=_ALLOWED_ROSTER, message=_ALLOWED_MESSAGE, presence=_ALLOWED_PRESENCE} 18 local _TO_CHECK = {roster=_ALLOWED_ROSTER, message=_ALLOWED_MESSAGE, presence=_ALLOWED_PRESENCE}
8 local _PRIV_ENT_NS = 'urn:xmpp:privilege:1' 19 local _PRIV_ENT_NS = 'urn:xmpp:privilege:1'
9 20
10 module:log("info", "Loading privileged entity module "); 21
22 module:log("debug", "Loading privileged entity module ");
23
24 --> Permissions management <--
11 25
12 privileges = module:get_option("privileged_entities", {}) 26 privileges = module:get_option("privileged_entities", {})
13
14 module:log("warn", "Connection, HOST="..tostring(module:get_host()).." ("..tostring(module:get_host_type())..")")
15 27
16 function advertise_perm(to_jid, perms) 28 function advertise_perm(to_jid, perms)
17 -- send <message/> stanza to advertise permissions 29 -- send <message/> stanza to advertise permissions
18 -- as expained in section 4.2 30 -- as expained in section 4.2
19 local message = st.message({to=to_jid}) 31 local message = st.message({to=to_jid})
32 -- Check if entity is privileged according to configuration, 44 -- Check if entity is privileged according to configuration,
33 -- and set session.privileges accordingly 45 -- and set session.privileges accordingly
34 46
35 local session = event.session 47 local session = event.session
36 local bare_jid = jid.join(session.username, session.host) 48 local bare_jid = jid.join(session.username, session.host)
37 module:log("info", "======>>> on_auth, type="..tostring(event.session.type)..", jid="..tostring(bare_jid));
38 49
39 local ent_priv = privileges[bare_jid] 50 local ent_priv = privileges[bare_jid]
40 if ent_priv ~= nil then 51 if ent_priv ~= nil then
41 module:log("debug", "Entity is privileged") 52 module:log("debug", "Entity is privileged")
42 for perm_type, allowed_values in pairs(_TO_CHECK) do 53 for perm_type, allowed_values in pairs(_TO_CHECK) do
62 session.privileges = ent_priv 73 session.privileges = ent_priv
63 end 74 end
64 75
65 module:hook('authentication-success', on_auth) 76 module:hook('authentication-success', on_auth)
66 module:hook('component-authenticated', on_auth) 77 module:hook('component-authenticated', on_auth)
78
79
80 --> roster permission <--
81
82 module:hook("iq-get/bare/jabber:iq:roster:query", function(event)
83 local session, stanza = event.origin, event.stanza;
84 if not stanza.attr.to then
85 -- we don't want stanzas addressed to /self
86 return;
87 end
88
89 if session.privileges and _ROSTER_GET_PERM:contains(session.privileges.roster) then
90 module:log("debug", "Roster get from allowed privileged entity received")
91 -- following code is adapted from mod_remote_roster
92 local node, host = jid.split(stanza.attr.to);
93 local roster = roster_manager.load_roster(node, host);
94
95 local reply = st.reply(stanza):query("jabber:iq:roster");
96 for entity_jid, item in pairs(roster) do
97 if entity_jid and entity_jid ~= "pending" then
98 local node, host = jid.split(entity_jid);
99 reply:tag("item", {
100 jid = entity_jid,
101 subscription = item.subscription,
102 ask = item.ask,
103 name = item.name,
104 });
105 for group in pairs(item.groups) do
106 reply:tag("group"):text(group):up();
107 end
108 reply:up(); -- move out from item
109 end
110 end
111 session.send(reply);
112 else
113 module:log("warn", "Entity "..tostring(session.full_jid).." try to get roster without permission")
114 session.send(st.error_reply(stanza, 'auth', 'forbidden'))
115 end
116
117 return true
118
119 end);