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mod_server_info/README.md

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mod_server_info/README.md @ 5896:8aec430ba205

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author Kim Alvefur <zash@zash.se>
date Thu, 21 Mar 2024 19:44:27 +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: Manually configure extended service discovery info
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5 ...
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6
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7 XEP-0128 defines a way for servers to provide custom information via service
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8 discovery. Various XEPs and plugins make use of this functionality, so that
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9 e.g. clients can look up necessary information.
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10
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11 This module allows the admin to manually configure service discovery
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12 extensions in the config file. It may be useful as a way to advertise certain
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13 information.
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15 Everything configured here is publicly visible to other XMPP entities.
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17 **Note:** This module was rewritten in February 2024, the configuration is not
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18 compatible with the previous version of the module.
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20 ## Configuration
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22 The `server_info_extensions` option accepts a list of custom fields to include
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23 in the server info form.
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24
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25 A field has three required properties:
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27 - `type` - usually `text-single` or `list-multi`
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28 - `var` - the field name (see below)
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29 - `value` the field value
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31 Example configuration:
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32
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33 ``` lua
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34 server_info = {
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35 -- Advertise that our maximum speed is 88 mph
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36 { type = "text-single", var = "speed", value = "88" };
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38 -- Advertise that the time is 1:20 AM and zero seconds
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39 { type = "text-single", var = "time", value = "01:21:00" };
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40 }
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41 ```
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42
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43 The `var` attribute is used to uniquely identify fields. Every `var` should be
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44 registered with the XSF [form registry](https://xmpp.org/registrar/formtypes.html#http:--jabber.org-network-serverinfo),
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45 or prefixed with a custom namespace using Clark notation, e.g. `{https://example.com}my-field-name`. This is to prevent
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46 collisions.
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47
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48 ## Developers
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49
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50 Developers of other modules can add fields to the form at runtime:
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52 ```lua
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53 module:depends("server_info");
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55 module:add_item("server-info-fields", {
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56 { type = "text-single", var = "speed", value = "88" };
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57 { type = "text-single", var = "time", value = "01:21:00" };
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58 });
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59 ```
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60
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61 Prosody will ensure they are removed if your module is unloaded.
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62
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63 ## Compatibility
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65 This module should be compatible with Prosody 0.12 and later.