Mercurial > prosody-modules
annotate mod_delegation/README.markdown @ 1969:e63dba236a2a
mod_storage_xmlarchive: Use datamanager.append_raw (had that code duplicated here)
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 12 Dec 2015 03:30:06 +0100 |
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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 If you use it with a component, you need to patch |
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24 core/mod\_component.lua to fire a new signal. To do it, copy the |
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25 following patch in a, for example, /tmp/component.patch file: |
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26 |
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27 diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua |
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28 --- a/plugins/mod_component.lua |
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29 +++ b/plugins/mod_component.lua |
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30 @@ -85,6 +85,7 @@ |
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31 session.type = "component"; |
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32 module:log("info", "External component successfully authenticated"); |
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33 session.send(st.stanza("handshake")); |
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34 + module:fire_event("component-authenticated", { session = session }); |
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35 |
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36 return true; |
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37 end |
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39 Then, at the root of prosody, enter: | |
40 | |
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41 `patch -p1 < /tmp/component.patch` |
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42 |
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43 Usage |
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44 ===== |
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46 To use the module, like usual add **"delegation"** to your |
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47 modules\_enabled. Note that if you use it with a local component, you |
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48 also need to activate the module in your component section: |
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50 modules_enabled = { |
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51 [...] |
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52 |
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53 "delegation"; |
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54 } |
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55 |
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56 [...] |
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58 Component "youcomponent.yourdomain.tld" |
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59 component_secret = "yourpassword" |
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60 modules_enabled = {"delegation"} |
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62 then specify delegated namespaces **in your host section** like that: |
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63 |
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64 VirtualHost "yourdomain.tld" |
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66 delegations = { |
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67 ["urn:xmpp:mam:0"] = { |
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68 filtering = {"node"}; |
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69 jid = "pubsub.yourdomain.tld"; |
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70 }, |
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71 ["http://jabber.org/protocol/pubsub"] = { |
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72 jid = "pubsub.yourdomain.tld"; |
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73 }, |
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74 } |
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76 Here all MAM requests with a "node" attribute (i.e. all MAM pubsub |
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77 request) will be delegated to pubsub.yourdomain.tld. Similarly, all |
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78 pubsub request to the host (i.e. the PEP requests) will be delegated to |
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79 pubsub.yourdomain.tld. |
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80 |
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81 **/! Be extra careful when you give a delegation to an entity/component, |
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82 it's a powerful access, only do it if you absoly trust the |
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83 component/entity, and you know where the software is coming from** |
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85 Configuration |
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86 ============= |
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87 |
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88 The configuration is done with a table which map delegated namespace to |
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89 namespace data. Namespace data MUST have a **jid** (in the form **jid = |
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90 "delegated@domain.tld"**) and MAY have an additional **filtering** |
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91 array. If filtering is present, request with attributes in the array |
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92 will be delegated, other will be treated normally (i.e. by Prosody). |
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94 If your are not a developper, the delegated namespace(s)/attribute(s) |
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95 are most probably specified with the external component/entity you want |
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96 to use. |
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98 Compatibility |
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99 ============= |
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101 ----- ---------------------------------------------------- |
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102 dev Need a patched core/mod\_component.lua (see above) |
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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) |