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annotate mod_muc_eventsource/README.markdown @ 5265:f845c218e52c

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mod_http_oauth2: Allow revoking a token without OAuth client credentials If you have a valid token, and you're not supposed to have it, revoking it seems the most responsible thing to do with it, so it should be allowed, while if you are supposed to have it, you should also be allowed to revoke it.
author Kim Alvefur <zash@zash.se>
date Tue, 21 Mar 2023 22:02:38 +0100
parents 7c16afc70d11
children 694b62d8a82f
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2 labels: 'Stage-Beta'
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3 summary: Subscribe to MUC rooms using the HTML5 EventSource API
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4 ...
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6 Introduction
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7 ------------
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9 This module and its docs shamelessly forked from mod_pubsub_eventsource.
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11 [Server-Sent Events](https://en.wikipedia.org/wiki/Server-sent_events)
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12 is a simple HTTP/line-based protocol supported in HTML5, making it easy
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13 to receive a stream of "events" in realtime using the Javascript
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14 [EventSource
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15 API](https://developer.mozilla.org/en-US/docs/Web/API/EventSource).
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17 EventSource is supported in [most modern
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18 browsers](http://caniuse.com/#feat=eventsource), and for the remainder
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19 there are 'polyfill' compatibility layers such as
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20 [EventSource.js](https://github.com/remy/polyfills/blob/master/EventSource.js)
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21 and [jquery.eventsource](https://github.com/rwldrn/jquery.eventsource).
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22
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23 Details
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24 -------
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26 Subscribing to a node from Javascript is easy:
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28 var source = new EventSource('http://muc.example.org:5280/eventsource/myroom');
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29 source.onmessage = function (event) {
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30 console.log(event.data); // Do whatever you want with the data here
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31 };
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33 ### Access control
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35 Be warned that this module currently performs no access control. It will expose
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36 the messages of ALL rooms on the host it is loaded on. This may be changed in
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37 future revisions.
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39 ### Cross-domain issues
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41 The same cross-domain restrictions apply to EventSource that apply to
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42 BOSH, and support for CORS is not clearly standardized yet. You may want
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43 to proxy connections through your web server for this reason. See [BOSH:
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44 Cross-domain
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45 issues](https://prosody.im/doc/setting_up_bosh#proxying_requests) for
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46 more information.
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48 Configuration
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49 -------------
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51 There is no special configuration for this module. Simply load it onto a
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52 MUC component like so:
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54 Component "muc.example.org" "muc"
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55 modules_enabled = { "muc_eventsource" }
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57 As it uses HTTP to serve the event streams, you can use Prosody's
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58 standard [HTTP configuration options](https://prosody.im/doc/http) to
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59 control how/where the streams are served.
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61 **Note about URLs:** It is important to get the event streams from the
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62 correct hostname (that of the MUC host). An example stream URL is
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63 `http://muc.example.org:5280/eventsource/myroom`. If you need to
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64 access the streams using another hostname (e.g. `example.org`) you can
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65 use the `http_host` option under the Component, e.g.
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66 `http_host = "example.org"`. For more information see the ['Virtual
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67 Hosts'](https://prosody.im/doc/http#virtual_hosts) section of our HTTP
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68 documentation.
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69
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70 Compatibility
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71 -------------
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72
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74 0.10 ?
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75 0.9 ?
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76 0.8 Doesn't work
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77 Trunk Works
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78 ------- --------------