Mercurial > prosody-modules
annotate mod_privilege/README.markdown @ 5243:d5dc8edb2695
mod_http_oauth2: Use more compact IDs
UUIDs are nice but so verbose!
The reduction in entropy for the nonce should be fine since the
timestamp is also counts towards this, and it changes every second
(modulo clock shenanigans), so the chances of someone managing to get
the same client_secret by registering with the same information at the
same time as another entity should be negligible.
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 11 Mar 2023 22:46:27 +0100 |
parents | 3ddab718f717 |
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rev | line source |
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1 --- |
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2 labels: |
4913 | 3 - 'Stage-Beta' |
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4 summary: 'XEP-0356 (Privileged Entity) implementation' |
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5 ... |
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7 Introduction |
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8 ============ |
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10 Privileged Entity is an extension which allows entity/component to have |
4913 | 11 privileged access to server (set/get roster, send message on behalf of server, |
12 send IQ stanza on behalf of user, access presence information). It can be used | |
13 to build services independently of server (e.g.: PEP service). | |
1782 | 14 |
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15 Details |
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16 ======= |
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18 You can have all the details by reading the |
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19 [XEP-0356](http://xmpp.org/extensions/xep-0356.html). |
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20 |
4913 | 21 Only the latest version of the XEP is implemented (using namespace |
22 `urn:xmpp:privilege:2`), if your component use an older version, please update. | |
23 | |
24 Note that roster permission is not fully implemented yet, roster pushes are not yet sent | |
25 to privileged entity. | |
26 | |
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27 Usage |
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28 ===== |
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29 |
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30 To use the module, like usual add **"privilege"** to your |
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31 modules\_enabled. Note that if you use it with a local component, you |
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32 also need to activate the module in your component section: |
1782 | 33 |
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34 modules_enabled = { |
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35 [...] |
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36 |
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37 "privilege"; |
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38 } |
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40 [...] |
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41 |
4913 | 42 Component "pubsub.yourdomain.tld" |
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43 component_secret = "yourpassword" |
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44 modules_enabled = {"privilege"} |
1782 | 45 |
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46 then specify privileged entities **in your host section** like that: |
1782 | 47 |
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48 VirtualHost "yourdomain.tld" |
1782 | 49 |
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50 privileged_entities = { |
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51 ["romeo@montaigu.lit"] = { |
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52 roster = "get"; |
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53 presence = "managed_entity"; |
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54 }, |
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55 ["juliet@capulet.lit"] = { |
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56 roster = "both"; |
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57 message = "outgoing"; |
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58 presence = "roster"; |
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59 }, |
4913 | 60 ["pubsub.yourdomain.tld"] = { |
61 roster = "get"; | |
62 message = "outgoing"; | |
63 presence = "roster"; | |
64 iq = { | |
65 ["http://jabber.org/protocol/pubsub"] = "set"; | |
66 }; | |
67 }, | |
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68 } |
1782 | 69 |
4913 | 70 Here *romeo@montaigu.lit* can **get** roster of anybody on the host, and will |
71 **have presence for any user** of the host, while *juliet@capulet.lit* can | |
72 **get** and **set** a roster, **send messages** on behalf of the server, and | |
73 **access presence of anybody linked to the host** (not only people on the | |
74 server, but also people in rosters of users of the server). | |
1782 | 75 |
4913 | 76 *pubsub.yourdomain.tld* is a Pubsub/PEP component which can **get** roster of |
77 anybody on the host, **send messages** on the behalf of the server, **access | |
78 presence of anybody linked to the host**, and **send IQ stanza of type "set" for | |
79 the namespace "http://jabber.org/protocol/pubsub"** (this can be used to | |
80 implement XEP-0376 "Pubsub Account Management"). | |
81 | |
82 **/!\\Â Be extra careful when you give a permission to an entity/component, it's | |
83 a powerful access, only do it if you absolutely trust the component/entity, and | |
84 you know where the software is coming from** | |
1782 | 85 |
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86 Configuration |
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87 ============= |
1782 | 88 |
4913 | 89 roster |
90 ------ | |
91 | |
1782 | 92 All the permissions give access to all accounts of the virtual host. |
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93 |
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94 -------- ------------------------------------------------ ---------------------- |
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95 roster none *(default)* No access to rosters |
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96 get Allow **read** access to rosters |
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97 set Allow **write** access to rosters |
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98 both Allow **read** and **write** access to rosters |
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99 -------- ------------------------------------------------ ---------------------- |
1782 | 100 |
4913 | 101 Note that roster implementation is incomplete at the moment, roster pushes are not yet |
102 send to privileged entity. | |
103 | |
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104 message |
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105 ------- |
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106 |
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107 ------------------ ------------------------------------------------------------ |
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108 none *(default)* Can't send message from server |
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109 outgoing Allow to send message on behalf of server (from bare jids) |
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110 ------------------ ------------------------------------------------------------ |
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111 |
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112 presence |
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113 -------- |
1782 | 114 |
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115 ------------------ ------------------------------------------------------------------------------------------------ |
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116 none *(default)* Do not have extra presence information |
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117 managed\_entity Receive presence stanzas (except subscriptions) from host users |
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118 roster Receive all presence stanzas (except subsciptions) from host users and people in their rosters |
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119 ------------------ ------------------------------------------------------------------------------------------------ |
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120 |
4913 | 121 iq |
122 -- | |
123 | |
124 IQ permission is a table mapping allowed namespaces to allowed stanza type. When | |
125 a namespace is specified, IQ stanza of the specified type (see below) can be | |
126 sent if and only if the first child element of the IQ stanza has the specified | |
127 namespace. See https://xmpp.org/extensions/xep-0356.html#iq for details. | |
128 | |
129 Allowed stanza type: | |
130 | |
131 -------- ------------------------------------------- | |
132 get Allow IQ stanza of type **get** | |
133 set Allow IQ stanza of type **set** | |
134 both Allow IQ stanza of type **get** and **set** | |
135 -------- ------------------------------------------- | |
136 | |
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137 Compatibility |
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138 ============= |
1782 | 139 |
1992 | 140 If you use it with Prosody 0.9 and with a component, you need to patch |
141 core/mod\_component.lua to fire a new signal. To do it, copy the | |
142 following patch in a, for example, /tmp/component.patch file: | |
143 | |
144 ``` {.patch} | |
145 diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua | |
146 --- a/plugins/mod_component.lua | |
147 +++ b/plugins/mod_component.lua | |
148 @@ -85,6 +85,7 @@ | |
149 session.type = "component"; | |
150 module:log("info", "External component successfully authenticated"); | |
151 session.send(st.stanza("handshake")); | |
152 + module:fire_event("component-authenticated", { session = session }); | |
153 | |
154 return true; | |
155 end | |
156 ``` | |
157 | |
158 Then, at the root of prosody, enter: | |
159 | |
160 `patch -p1 < /tmp/component.patch` | |
161 | |
4913 | 162 ----- -------------------------------------------------- |
163 trunk Works | |
164 0.12 Works | |
165 0.11 Works | |
1992 | 166 0.10 Works |
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167 0.9 Need a patched core/mod\_component.lua (see above) |
4913 | 168 ----- -------------------------------------------------- |
1782 | 169 |
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170 Note |
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171 ==== |
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172 |
4913 | 173 This module is often used with mod\_delegation (c.f. XEP for more details) |