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mod_http_oauth2: Reject invalid attempt to register client without credentials The implicit flow works without a client_secret since the token is delivered directly, but all other currently supported grant types require client to authenticate using credentials, so it makes no sense to not issue credentials then.
author Kim Alvefur <zash@zash.se>
date Thu, 03 Jul 2025 15:45:00 +0200
parents c858c76d0845
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# mod_tweet_data

This module adds [Open Graph Protocol](https://ogp.me) metadata to Twitter.com tweet URLs sent inside a MUC.

It's similar to [mod_ogp](https://modules.prosody.im/mod_ogp.html) but is adapted specifically to Twitter.com, which doesn't support the [Open Graph Protocol](https://ogp.me).

When a user sends a tweet URL in a MUC (where the message has its `id` equal to its `origin-id`), this module calls that URL to get the tweet data.
If it finds any, it sends a [XEP-0422 fastening](https://xmpp.org/extensions/xep-0422.html) applied to the original message that looks as follows (note, I haven't used real data here):

```xml
    <message xmlns="jabber:client" to="user@chat.example.org/resource" from="chatroom@muc.example.org" type="groupchat">
        <apply-to xmlns="urn:xmpp:fasten:0" id="82dbc94c-c18a-4e51-a0d5-9fd3a7bfd267">
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:article:author" content="TwitterCritter" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:article:published_time" content="2021-06-22T06:44:20.000Z" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:description" content="I'm in ur twitterz" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:image" content="https://pbs.twimg.com/profile_images/984325764849045505/Ty3F93Ln_normal.jpg" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:title" content="TwitterCritter" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:type" content="tweet" />
            <meta xmlns="http://www.w3.org/1999/xhtml" property="og:url" content="https://twitter.com/TwitterCritter/status/1407227938391707648" />
        </apply-to>
        <stanza-id xmlns="urn:xmpp:sid:0" by="chatroom@muc.example.org" id="90e8818d-390a-4c69-a2d8-0fd463fb3366"/>
    </message>
```

Configuration
-------------

You'll need to provide a Twitter APIv2 bearer token.

```lua
Component "muc.example.org" "muc"
  modules_enabled = { "tweet_data" }
  twitter_apiv2_bearer_token  = { "some-very-long-string" }
```