From 111c5742c9abdc531e570604b921d61f9fdf8c1a Mon Sep 17 00:00:00 2001
From: "Fabien \"egg\" O'Carroll" <fabien@allou.is>
Date: Thu, 19 Jan 2023 19:14:07 +0700
Subject: [PATCH] Implemented WebmentionMetadata using the oembed service

https://github.com/TryGhost/Team/issues/2458

This is an initial pass at pulling metadata from webmention sources, we've also
updated the fake data to pull from some real-world sites which implement
webmentions. We've reused the oembed service here, long term it would be nice to
pull the metadata parsing/pulling part out, so that we can have more generic
error messages.
---
 .../services/mentions/WebmentionMetadata.js   | 22 +++++++++-------
 .../core/server/services/mentions/service.js  | 26 +++++++++++++++----
 2 files changed, 34 insertions(+), 14 deletions(-)

diff --git a/ghost/core/core/server/services/mentions/WebmentionMetadata.js b/ghost/core/core/server/services/mentions/WebmentionMetadata.js
index 14f6ba8bec..2668a022e0 100644
--- a/ghost/core/core/server/services/mentions/WebmentionMetadata.js
+++ b/ghost/core/core/server/services/mentions/WebmentionMetadata.js
@@ -1,16 +1,20 @@
+const oembedService = require('../oembed');
+
 module.exports = class WebmentionMetadata {
     /**
      * @param {URL} url
-     * @returns {Promise<import('./MentionsAPI').WebmentionMetadata>}
+     * @returns {Promise<import('@tryghost/webmentions/lib/MentionsAPI').WebmentionMetadata>}
      */
-    async fetch() {
-        return {
-            siteTitle: 'Clickbait News',
-            title: 'This egg breakfast will make you cry',
-            excerpt: 'How many times have you woken up and almost cancelled your church plans? Well this breakfast is about to change everything, a hearty, faith restoring egg dish that will get your tastebuds in a twist.',
-            author: 'Dr Egg Man',
-            image: new URL('https://unsplash.com/photos/QAND9huzD04'),
-            favicon: new URL('https://ghost.org/favicon.ico')
+    async fetch(url) {
+        const data = await oembedService.fetchOembedDataFromUrl(url.href, 'bookmark');
+        const result = {
+            siteTitle: data.metadata.publisher,
+            title: data.metadata.title,
+            excerpt: data.metadata.description,
+            author: data.metadata.author,
+            image: new URL(data.metadata.thumbnail),
+            favicon: new URL(data.metadata.icon)
         };
+        return result;
     }
 };
diff --git a/ghost/core/core/server/services/mentions/service.js b/ghost/core/core/server/services/mentions/service.js
index 3096942629..024e7481f6 100644
--- a/ghost/core/core/server/services/mentions/service.js
+++ b/ghost/core/core/server/services/mentions/service.js
@@ -28,14 +28,30 @@ module.exports = {
             }
         });
 
-        api.processWebmention({
-            source: new URL('https://egg.com/post'),
-            target: new URL('https://ronald.com/pizza'),
-            payload: {
+        this.controller.init({api});
+
+        this.controller.receive({
+            data: {
+                source: 'https://brid.gy/repost/twitter/KiaKamgar/1615735511137624064/1615738476875366401',
+                target: 'https://ronald.com/pizza/',
                 extra: 'data'
             }
         });
 
-        this.controller.init({api});
+        this.controller.receive({
+            data: {
+                source: 'https://slrpnk.net/post/222314',
+                target: 'https://ronald.com/thing/',
+                extra: 'data'
+            }
+        });
+
+        this.controller.receive({
+            data: {
+                source: 'https://lobste.rs/s/eq4f9d',
+                target: 'https://ronald.com/whatever/',
+                extra: 'data'
+            }
+        });
     }
 };