Ignore 4xx references in AP (#4463)

* Ignore 4xx references

* remove unnecessary comment

2 files changed, 24 insertions, 3 deletions

diff --git a/src/remote/activitypub/models/image.ts b/src/remote/activitypub/models/image.ts
index ef0b24e890..bd97d13d27 100644
--- a/src/remote/activitypub/models/image.ts
+++ b/src/remote/activitypub/models/image.ts
@@ -27,7 +27,17 @@ export async function createImage(actor: IRemoteUser, value: any): Promise<IDriv
 	const instance = await fetchMeta();
 	const cache = instance.cacheRemoteFiles;
 
-	let file = await uploadFromUrl(image.url, actor, null, image.url, image.sensitive, false, !cache);
+	let file;
+	try {
+		file = await uploadFromUrl(image.url, actor, null, image.url, image.sensitive, false, !cache);
+	} catch (e) {
+		// 4xxの場合は添付されてなかったことにする
+		if (e >= 400 && e < 500) {
+			logger.warn(`Ignored image: ${image.url} - ${e}`);
+			return null;
+		}
+		throw e;
+	}
 
 	if (file.metadata.isRemote) {
 		// URLが異なっている場合、同じ画像が以前に異なるURLで登録されていたということなので、
diff --git a/src/remote/activitypub/models/note.ts b/src/remote/activitypub/models/note.ts
index a87257dffc..7078eb2ce1 100644
--- a/src/remote/activitypub/models/note.ts
+++ b/src/remote/activitypub/models/note.ts
@@ -111,11 +111,22 @@ export async function createNote(value: any, resolver?: Resolver, silent = false
 	note.attachment = Array.isArray(note.attachment) ? note.attachment : note.attachment ? [note.attachment] : [];
 	const files = note.attachment
 		.map(attach => attach.sensitive = note.sensitive)
-		? await Promise.all(note.attachment.map(x => limit(() => resolveImage(actor, x)) as Promise<IDriveFile>))
+		? (await Promise.all(note.attachment.map(x => limit(() => resolveImage(actor, x)) as Promise<IDriveFile>)))
+			.filter(image => image != null)
 		: [];
 
 	// リプライ
-	const reply = note.inReplyTo ? await resolveNote(note.inReplyTo, resolver) : null;
+	const reply = note.inReplyTo
+		? await resolveNote(note.inReplyTo, resolver).catch(e => {
+			// 4xxの場合はリプライしてないことにする
+			if (e.statusCode >= 400 && e.statusCode < 500) {
+				logger.warn(`Ignored inReplyTo ${note.inReplyTo} - ${e.statusCode} `);
+				return null;
+			}
+			logger.warn(`Error in inReplyTo ${note.inReplyTo} - ${e.statusCode || e}`);
+			throw e;
+		})
+		: null;
 
 	// 引用
 	let quote: INote;