Mercurial > prosody-modules

annotate mod_ogp/README.markdown @ 5119:048e339706ba

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_rest: Remove manual reference expansion in schema This hack was originally added to reduce the number of definitions of common attributes (type, to, from etc) and payloads (e.g. delay). This predated pointers and references, and until now was needed because parsing picked out the correct stanza kind from the schema, which broke internal references. Removing this hack paves the way for allowing the schema to be configured or customized more easily.
author Kim Alvefur <zash@zash.se>
date Tue, 20 Dec 2022 21:48:28 +0100
parents 09f0911c735d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4460
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
1 # mod_ogp
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
2
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
3 This module adds [Open Graph Protocol](https://ogp.me) metadata to URLs sent inside a MUC.
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
4
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
5 With mod_ogp enabled, when a user sends a URL in a MUC (where the message has its `id` equal to its `origin-id`), the module calls the URL and parses the result for `<meta>` html tags that have any `og:...` properties.
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
6 If it finds any, it sends a [XEP-0422 fastening](https://xmpp.org/extensions/xep-0422.html) applied to the original message that looks like:
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
7
4484
6813a00878ea mod_ogp/README: Annotate example as XML to enable syntax highlighting
Kim Alvefur <zash@zash.se>
parents: 4483
diff changeset
8 ```xml
4597
c858c76d0845 mod_tweet_data: New module that fetches and sends tweet data
JC Brand <jc@opkode.com>
parents: 4485
diff changeset
9 <message id="example" from="chatroom@muc.example.org" to="user@chat.example.org/resource">
4483
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
10 <apply-to xmlns="urn:xmpp:fasten:0" id="origin-id-X">
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
11 <meta xmlns="http://www.w3.org/1999/xhtml" property="og:title" content="The Rock"/>
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
12 <meta xmlns="http://www.w3.org/1999/xhtml" property="og:url" content="https://www.imdb.com/title/tt0117500/"/>
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
13 <meta xmlns="http://www.w3.org/1999/xhtml" property="og:image" content="https://ia.media-imdb.com/images/rock.jpg"/>
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
14 </apply-to>
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
15 </message>
4460
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
16 ```
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
17
205e50fdcebc mod_ogp: Add README
JC Brand <jc@opkode.com>
parents:
diff changeset
18 The module is intentionally simple in the sense that it is basically a transport for https://ogp.me/
4483
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
19
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
20 Configuration
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
21 -------------
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
22
4598
09f0911c735d mod_ogp: Add the ability to block OGP fetching for certain domains
JC Brand <jc@opkode.com>
parents: 4597
diff changeset
23 You can present an allowlist or denylist of domains for which OGP metadata will be fetched
09f0911c735d mod_ogp: Add the ability to block OGP fetching for certain domains
JC Brand <jc@opkode.com>
parents: 4597
diff changeset
24 via the `ogp_domain_allowlist` and `ogp_domain_denylist` settings repectively.
4483
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
25
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
26 For example:
c4f11a4b5ac7 mod_ogp: Add the ability to whitelist domains
JC Brand <jc@opkode.com>
parents: 4460
diff changeset
27
4485
2c4b65bfac62 mod_ogp/README: Add Lua language annotation to prosody config snippet
Kim Alvefur <zash@zash.se>
parents: 4484
diff changeset
28 ```lua
2c4b65bfac62 mod_ogp/README: Add Lua language annotation to prosody config snippet
Kim Alvefur <zash@zash.se>
parents: 4484
diff changeset
29 Component "muc.example.org" "muc"
2c4b65bfac62 mod_ogp/README: Add Lua language annotation to prosody config snippet
Kim Alvefur <zash@zash.se>
parents: 4484
diff changeset
30 modules_enabled = { "ogp" }
4598
09f0911c735d mod_ogp: Add the ability to block OGP fetching for certain domains
JC Brand <jc@opkode.com>
parents: 4597
diff changeset
31 ogp_domain_allowlist = { "prosody.im" }
4485
2c4b65bfac62 mod_ogp/README: Add Lua language annotation to prosody config snippet
Kim Alvefur <zash@zash.se>
parents: 4484
diff changeset
32 ```