refactor(electron): server side plugin (#3360)

plugins/bookmark/package.json

@@ -4,13 +4,15 @@
   "affinePlugin": {
     "release": true,
     "entry": {
-      "core": "./src/index.ts"
+      "core": "./src/index.ts",
+      "server": "./src/server.ts"
     }
   },
   "dependencies": {
     "@affine/component": "workspace:*",
     "@blocksuite/icons": "^2.1.27",
     "@toeverything/plugin-infra": "workspace:*",
-    "foxact": "^0.2.17"
+    "foxact": "^0.2.17",
+    "link-preview-js": "^3.0.4"
   }
 }

plugins/bookmark/src/server.ts

@@ -0,0 +1,65 @@
+import type { ServerContext } from '@toeverything/plugin-infra/server';
+import { getLinkPreview } from 'link-preview-js';
+
+type MetaData = {
+  title?: string;
+  description?: string;
+  icon?: string;
+  image?: string;
+  [x: string]: string | string[] | undefined;
+};
+
+export interface PreviewType {
+  url: string;
+  title: string;
+  siteName: string | undefined;
+  description: string | undefined;
+  mediaType: string;
+  contentType: string | undefined;
+  images: string[];
+  videos: {
+    url: string | undefined;
+    secureUrl: string | null | undefined;
+    type: string | null | undefined;
+    width: string | undefined;
+    height: string | undefined;
+  }[];
+  favicons: string[];
+}
+
+export const entry = (context: ServerContext) => {
+  context.registerCommand(
+    'com.blocksuite.bookmark-block.get-bookmark-data-by-link',
+    async (url: string): Promise<MetaData> => {
+      const previewData = (await getLinkPreview(url, {
+        timeout: 6000,
+        headers: {
+          'user-agent': 'googlebot',
+        },
+        followRedirects: 'follow',
+      }).catch(() => {
+        return {
+          title: '',
+          siteName: '',
+          description: '',
+          images: [],
+          videos: [],
+          contentType: `text/html`,
+          favicons: [],
+        };
+      })) as PreviewType;
+
+      return {
+        title: previewData.title,
+        description: previewData.description,
+        icon: previewData.favicons[0],
+        image: previewData.images[0],
+      };
+    }
+  );
+  return () => {
+    context.unregisterCommand(
+      'com.blocksuite.bookmark-block.get-bookmark-data-by-link'
+    );
+  };
+};