From 22830965e341c9c961e072b2e92cb7c404f8624d Mon Sep 17 00:00:00 2001
From: MeiMei <30769358+mei23@users.noreply.github.com>
Date: Sun, 20 Jan 2019 03:07:12 +0900
Subject: AP Undo Like (#3933)

* AP Undo Like

* rename
---
 src/remote/activitypub/kernel/undo/index.ts |  6 +++++-
 src/remote/activitypub/kernel/undo/like.ts  | 21 +++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 src/remote/activitypub/kernel/undo/like.ts

(limited to 'src/remote/activitypub')

diff --git a/src/remote/activitypub/kernel/undo/index.ts b/src/remote/activitypub/kernel/undo/index.ts
index ba56dd6328..471988f052 100644
--- a/src/remote/activitypub/kernel/undo/index.ts
+++ b/src/remote/activitypub/kernel/undo/index.ts
@@ -1,9 +1,10 @@
 import * as debug from 'debug';
 
 import { IRemoteUser } from '../../../../models/user';
-import { IUndo, IFollow, IBlock } from '../../type';
+import { IUndo, IFollow, IBlock, ILike } from '../../type';
 import unfollow from './follow';
 import unblock from './block';
+import undoLike from './like';
 import Resolver from '../../resolver';
 
 const log = debug('misskey:activitypub');
@@ -35,6 +36,9 @@ export default async (actor: IRemoteUser, activity: IUndo): Promise<void> => {
 		case 'Block':
 			unblock(actor, object as IBlock);
 			break;
+		case 'Like':
+			undoLike(actor, object as ILike);
+			break;
 	}
 
 	return null;
diff --git a/src/remote/activitypub/kernel/undo/like.ts b/src/remote/activitypub/kernel/undo/like.ts
new file mode 100644
index 0000000000..b324ec854c
--- /dev/null
+++ b/src/remote/activitypub/kernel/undo/like.ts
@@ -0,0 +1,21 @@
+import * as mongo from 'mongodb';
+import { IRemoteUser } from '../../../../models/user';
+import { ILike } from '../../type';
+import Note from '../../../../models/note';
+import deleteReaction from '../../../../services/note/reaction/delete';
+
+/**
+ * Process Undo.Like activity
+ */
+export default async (actor: IRemoteUser, activity: ILike): Promise<void> => {
+	const id = typeof activity.object == 'string' ? activity.object : activity.object.id;
+
+	const noteId = new mongo.ObjectID(id.split('/').pop());
+
+	const note = await Note.findOne({ _id: noteId });
+	if (note === null) {
+		throw 'note not found';
+	}
+
+	await deleteReaction(actor, note);
+};
-- 
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