From 58eaf0ba1c42e49d5cede907a0bd5939629764f6 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Sun, 10 Feb 2019 18:03:01 +0000
Subject: [PATCH] Prevent multiple send follow requests

---
 src/Protocol/ActivityPub/Transmitter.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Protocol/ActivityPub/Transmitter.php b/src/Protocol/ActivityPub/Transmitter.php
index 1032627b3..ebd32786a 100644
--- a/src/Protocol/ActivityPub/Transmitter.php
+++ b/src/Protocol/ActivityPub/Transmitter.php
@@ -1317,6 +1317,13 @@ class Transmitter
 			$uid = $first_user['uid'];
 		}
 
+		$condition = ['verb' => ACTIVITY_FOLLOW, 'uid' => 0, 'parent-uri' => $object,
+			'author-id' => Contact::getPublicIdByUserId($uid)];
+		if (Item::exists($condition)) {
+			Logger::log('Follow for ' . $object . ' for user ' . $uid . ' does already exist.', Logger::DEBUG);
+			return false;
+		}
+
 		$owner = User::getOwnerDataById($uid);
 
 		$data = ['@context' => ActivityPub::CONTEXT,