view mod_json_streams/README.markdown @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 4d73a1a6ba68
children
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---
labels:
- 'Stage-Beta'
summary: JSON Encodings for XMPP
...

Introduction
============

This plugin encodes XMPP as JSON. This is an implementation of
[XEP-0295: JSON Encodings for
XMPP](http://xmpp.org/extensions/xep-0295.html).

Simply loading this module makes Prosody accept JSON on C2S streams
(legacy XML clients are still supported).

For BOSH, it requires mod\_bosh be loaded, and JSON should be directed
at the `/jsonstreams` HTTP path.

JSON for S2S isn't supported due to the lack of a discovery mechanism,
so we have left that disabled to stay compatible with legacy XML
servers.

Configuration
=============

Just add `"json_streams"` in your config's global `modules_enabled`
list, for example:

    modules_enabled = {
        ...
        "json_streams";
    }

Strophe.js plugin
=================

We also developed a [JSON streams
plugin](http://prosody-modules.googlecode.com/hg/mod_json_streams/strophe.jsonstreams.js)
for the popular [strophe.js](http://code.stanziq.com/strophe) library.

Just include it like this after including the strophe library, and your
strophe-based client will be speaking JSON:

    <script type="text/javascript" src="strophe.jsonstreams.js"></script>

Be sure to set the HTTP path to `/jsonstreams`. No other changes are
required.

Compatibility
=============

  ------- -------
  0.8     Works
  trunk   Works
  ------- -------

Quirks
======

-   This plugin does not currently work with Prosody's [port
    multiplexing](http://prosody.im/doc/port_multiplexing) feature