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annotate mod_pubsub_post/README.markdown @ 3502:42e9e3c5eb02

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mod_pubsub_post/README: Fix some typos
author Kim Alvefur <zash@zash.se>
date Sat, 30 Mar 2019 19:24:18 +0100
parents 1df139b157fb
children 882180b459a0
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1 # Introduction
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2
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3 Lets you easily publish data to PubSub using a HTTP POST request. The
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4 payload can be Atom feeds, arbitrary XML, or arbitrary JSON. The type
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5 should be indicated via the `Content-Type` header.
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6
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7 ``` {.bash}
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8 curl http://localhost:5280/pubsub_post/princely_musings \
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9 -H "Content-Type: application/json" \
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10 --data-binary '{"musing":"To be, or not to be: that is the question"}'
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11 ```
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12
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13 - JSON data is wrapped in a [XEP-0335] container.
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14 - An Atom feed may have many `<entry>` and each one is published as
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15 its own PubSub item.
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16 - Other XML is simply published to a randomly named item as-is.
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17
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18 # Configuration
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19
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20 ## Authentication
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21
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22 Authentication can be handled in two different ways.
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23
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24 ### None
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25
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26 ``` {.lua}
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27 pubsub_post_actor = "superuser"
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28 ```
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29
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30 The module uses an internal actor that has all privileges and can always
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31 do everything. It is strongly suggested that you do not expose this to
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32 the Internet. *Maybe* it shouldn't be the default...
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33
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34 ### IP
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35
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36 ``` {.lua}
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37 pubsub_post_actor = "request.ip"
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38 ```
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39
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40 Uses the IP address from the HTTP request as actor, which means this
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41 pseudo-JID must be given a 'publisher' affiliation. This should work
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42 nicely with the `autocreate_on_publish` setting, where the first actor
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43 to attempt to publish to a nonexistent node becomes owner of it, which
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44 includes publishing rights.
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45
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46 ## WebSub
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47
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48 ``` {.lua}
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49 -- Per node secrets
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50 pubsub_post_secrets = {
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51 my_node = "shared secret"
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52 }
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53
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54 -- Same secret for all nodes
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55 pubsub_post_secret = "shared secret"
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56 ```
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57
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58 This enables the
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59 [WebSub](https://www.w3.org/TR/2018/REC-websub-20180123/) [Authenticated
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60 Content
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61 Distribution](https://www.w3.org/TR/2018/REC-websub-20180123/#authenticated-content-distribution)
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62 authentication method, where payloads are signed using a shared secret.
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63
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64 ## Setting up affiliations
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65
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66 Prosodys PubSub module supports [setting affiliations via
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67 XMPP](https://xmpp.org/extensions/xep-0060.html#owner-affiliations), in
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68 trunk since [revision
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69 384ef9732b81](https://hg.prosody.im/trunk/rev/384ef9732b81).
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70
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71 It can however be done from another plugin:
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72
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73 ``` {.lua}
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74 local mod_pubsub = module:depends("pubsub");
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75 local pubsub = mod_pubsub.service;
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76
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77 pubsub:create("princely_musings", true);
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78 pubsub:set_affiliation("princely_musings", true, "127.0.0.1", "publisher");
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79 ```