From d0a074ac899d4bf2f4613ebf34d3650fc80ab2fc Mon Sep 17 00:00:00 2001
From: dakkar <dakkar@thenautilus.net>
Date: Sat, 15 Mar 2025 19:05:28 +0000
Subject: fetch linked notes manually, unless we have them in DB - fixes 1006

---
 packages/backend/src/server/web/UrlPreviewService.ts | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'packages/backend/src')

diff --git a/packages/backend/src/server/web/UrlPreviewService.ts b/packages/backend/src/server/web/UrlPreviewService.ts
index 19dac1dfb8..cf130a21ec 100644
--- a/packages/backend/src/server/web/UrlPreviewService.ts
+++ b/packages/backend/src/server/web/UrlPreviewService.ts
@@ -19,6 +19,7 @@ import { MiMeta } from '@/models/Meta.js';
 import { RedisKVCache } from '@/misc/cache.js';
 import { UtilityService } from '@/core/UtilityService.js';
 import type { FastifyRequest, FastifyReply } from 'fastify';
+import { ApDbResolverService } from '@/core/activitypub/ApDbResolverService.js';
 
 @Injectable()
 export class UrlPreviewService {
@@ -38,6 +39,7 @@ export class UrlPreviewService {
 		private httpRequestService: HttpRequestService,
 		private loggerService: LoggerService,
 		private utilityService: UtilityService,
+		private apDbResolverService: ApDbResolverService,
 	) {
 		this.logger = this.loggerService.getLogger('url-preview');
 		this.previewCache = new RedisKVCache<SummalyResult>(this.redisClient, 'summaly', {
@@ -102,12 +104,16 @@ export class UrlPreviewService {
 		}
 
 		const key = `${url}@${lang}`;
-		const cached = await this.previewCache.get(key);
+		const cached = await this.previewCache.get(key) as SummalyResult & { haveNoteLocally?: boolean };
 		if (cached !== undefined) {
 			this.logger.info(`Returning cache preview of ${key}`);
 			// Cache 7days
 			reply.header('Cache-Control', 'max-age=604800, immutable');
 
+			if (cached.activityPub) {
+				cached.haveNoteLocally = !! await this.apDbResolverService.getNoteFromApId(cached.activityPub);
+			}
+
 			return cached;
 		}
 
@@ -116,7 +122,7 @@ export class UrlPreviewService {
 			: `Getting preview of ${key} ...`);
 
 		try {
-			const summary = this.meta.urlPreviewSummaryProxyUrl
+			const summary: SummalyResult & { haveNoteLocally?: boolean } = this.meta.urlPreviewSummaryProxyUrl
 				? await this.fetchSummaryFromProxy(url, this.meta, lang)
 				: await this.fetchSummary(url, this.meta, lang);
 
@@ -135,6 +141,10 @@ export class UrlPreviewService {
 
 			this.previewCache.set(key, summary);
 
+			if (summary.activityPub) {
+				summary.haveNoteLocally = !! await this.apDbResolverService.getNoteFromApId(summary.activityPub);
+			}
+
 			// Cache 7days
 			reply.header('Cache-Control', 'max-age=604800, immutable');
 
-- 
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