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annotate mod_delegation/README.markdown @ 2453:f36a6dcc05ef
mod_candy: Add note about redirect from /candy to /candy/ not being necessary anymore
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 20 Jan 2017 01:21:21 +0100 |
parents | 66aaf7c3cb29 |
children | 4bf60727459b |
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1 --- |
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2 labels: |
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3 - 'Stage-Alpha' |
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4 summary: 'XEP-0355 (Namespace Delegation) implementation' |
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5 ... |
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7 Introduction |
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8 ============ |
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10 Namespace Delegation is an extension which allows server to delegate |
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11 some features handling to an entity/component. Typical use case is an |
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12 external PEP service, but it can be used more generally when your |
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13 prefered server lack one internal feature and you found an external |
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14 component which can do it. |
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16 Details |
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17 ======= |
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19 You can have all the details by reading the |
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20 [XEP-0355](http://xmpp.org/extensions/xep-0355.html). Only the admin |
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21 mode is implemented so far. |
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22 |
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23 Usage |
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24 ===== |
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26 To use the module, like usual add **"delegation"** to your |
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27 modules\_enabled. Note that if you use it with a local component, you |
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28 also need to activate the module in your component section: |
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30 modules_enabled = { |
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31 [...] |
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32 |
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33 "delegation"; |
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34 } |
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35 |
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36 [...] |
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38 Component "youcomponent.yourdomain.tld" |
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39 component_secret = "yourpassword" |
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40 modules_enabled = {"delegation"} |
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42 then specify delegated namespaces **in your host section** like that: |
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43 |
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44 VirtualHost "yourdomain.tld" |
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46 delegations = { |
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47 ["urn:xmpp:mam:0"] = { |
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48 filtering = {"node"}; |
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49 jid = "pubsub.yourdomain.tld"; |
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50 }, |
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51 ["http://jabber.org/protocol/pubsub"] = { |
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52 jid = "pubsub.yourdomain.tld"; |
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53 }, |
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54 } |
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56 Here all MAM requests with a "node" attribute (i.e. all MAM pubsub |
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57 request) will be delegated to pubsub.yourdomain.tld. Similarly, all |
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58 pubsub request to the host (i.e. the PEP requests) will be delegated to |
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59 pubsub.yourdomain.tld. |
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60 |
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61 **/! Be extra careful when you give a delegation to an entity/component, |
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62 it's a powerful access, only do it if you absoly trust the |
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63 component/entity, and you know where the software is coming from** |
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65 Configuration |
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66 ============= |
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67 |
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68 The configuration is done with a table which map delegated namespace to |
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69 namespace data. Namespace data MUST have a **jid** (in the form **jid = |
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70 "delegated@domain.tld"**) and MAY have an additional **filtering** |
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71 array. If filtering is present, request with attributes in the array |
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72 will be delegated, other will be treated normally (i.e. by Prosody). |
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74 If your are not a developper, the delegated namespace(s)/attribute(s) |
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75 are most probably specified with the external component/entity you want |
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76 to use. |
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78 Compatibility |
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79 ============= |
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1993 | 81 If you use it with Prosody 0.9 and a component, you need to patch |
82 core/mod\_component.lua to fire a new signal. To do it, copy the | |
83 following patch in a, for example, /tmp/component.patch file: | |
84 | |
85 diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua | |
86 --- a/plugins/mod_component.lua | |
87 +++ b/plugins/mod_component.lua | |
88 @@ -85,6 +85,7 @@ | |
89 session.type = "component"; | |
90 module:log("info", "External component successfully authenticated"); | |
91 session.send(st.stanza("handshake")); | |
92 + module:fire_event("component-authenticated", { session = session }); | |
93 | |
94 return true; | |
95 end | |
96 | |
97 Then, at the root of prosody, enter: | |
98 | |
99 `patch -p1 < /tmp/component.patch` | |
100 | |
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101 ----- ---------------------------------------------------- |
1993 | 102 0.10 Works |
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103 0.9 Need a patched core/mod\_component.lua (see above) |
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104 ----- ---------------------------------------------------- |
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106 Note |
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107 ==== |
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109 This module is often used with mod\_privilege (c.f. XEP for more |
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110 details) |