From aa2a32d16f20ee71dfcf7ec0f999b8b3f636ad81 Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Mon, 4 Apr 2022 16:03:53 +0000
Subject: [PATCH] Store the "EmojiReact" activity

---
 src/Protocol/Activity.php              | 16 ++++++++++++----
 src/Protocol/ActivityNamespace.php     |  4 ++++
 src/Protocol/ActivityPub/Processor.php |  4 ++++
 src/Protocol/ActivityPub/Receiver.php  | 20 ++++++++++++++++----
 4 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/src/Protocol/Activity.php b/src/Protocol/Activity.php
index 4ebb02b8dd..637669a61e 100644
--- a/src/Protocol/Activity.php
+++ b/src/Protocol/Activity.php
@@ -176,6 +176,13 @@ final class Activity
 	const O_UNFOLLOW    = ActivityNamespace::OSTATUS . '/unfollow';
 	const O_UNFAVOURITE = ActivityNamespace::OSTATUS . '/unfavorite';
 
+	/**
+	 * React to a post via an emoji 
+	 *
+	 * @var string
+	 */
+	const EMOJIREACT = ActivityNamespace::LITEPUB . '/emojireact';
+
 	/**
 	 * likes (etc.) can apply to other things besides posts. Check if they are post children,
 	 * in which case we handle them specially
@@ -183,10 +190,11 @@ final class Activity
 	 * Hidden activities, which doesn't need to be shown
 	 */
 	const HIDDEN_ACTIVITIES = [
-		Activity::LIKE, Activity::DISLIKE,
-		Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
-		Activity::FOLLOW,
-		Activity::ANNOUNCE,
+		self::LIKE, self::DISLIKE,
+		self::ATTEND, self::ATTENDNO, self::ATTENDMAYBE,
+		self::FOLLOW,
+		self::ANNOUNCE,
+		self::EMOJIREACT,
 	];
 
 	/**
diff --git a/src/Protocol/ActivityNamespace.php b/src/Protocol/ActivityNamespace.php
index 5506554609..5dbf88c86c 100644
--- a/src/Protocol/ActivityNamespace.php
+++ b/src/Protocol/ActivityNamespace.php
@@ -148,4 +148,8 @@ final class ActivityNamespace
 	 * @var string
 	 */
 	const MASTODON        = 'http://mastodon.social/schema/1.0';
+	/**
+	 * @var string
+	 */
+	const LITEPUB         = 'http://litepub.social';
 }
diff --git a/src/Protocol/ActivityPub/Processor.php b/src/Protocol/ActivityPub/Processor.php
index 3fc7dabe05..533d3a29b1 100644
--- a/src/Protocol/ActivityPub/Processor.php
+++ b/src/Protocol/ActivityPub/Processor.php
@@ -430,6 +430,10 @@ class Processor
 		unset($item['post-type']);
 		$item['object-type'] = Activity\ObjectType::NOTE;
 
+		if (!empty($activity['content'])) {
+			$item['body'] = HTML::toBBCode($activity['content']);
+		}
+
 		$item['diaspora_signed_text'] = $activity['diaspora:like'] ?? '';
 
 		self::postItem($activity, $item);
diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index f53ce74193..13d1a921f8 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -384,7 +384,7 @@ class Receiver
 			} else {
 				$object_data['directmessage'] = JsonLD::fetchElement($activity, 'litepub:directMessage');
 			}
-		} elseif (in_array($type, array_merge(self::ACTIVITY_TYPES, ['as:Follow'])) && in_array($object_type, self::CONTENT_TYPES)) {
+		} elseif (in_array($type, array_merge(self::ACTIVITY_TYPES, ['as:Follow', 'litepub:EmojiReact'])) && in_array($object_type, self::CONTENT_TYPES)) {
 			// Create a mostly empty array out of the activity data (instead of the object).
 			// This way we later don't have to check for the existence of each individual array element.
 			$object_data = self::processObject($activity);
@@ -752,8 +752,10 @@ class Receiver
 				break;
 
 			case 'litepub:EmojiReact':
-				if (in_array($object_data['object_type'], array_merge([''], self::CONTENT_TYPES))) {
-					// Unhandled Pleroma activity to react to a post via an emoji
+				if (in_array($object_data['object_type'], self::CONTENT_TYPES)) {
+					ActivityPub\Processor::createActivity($object_data, Activity::EMOJIREACT);
+				} elseif ($object_data['object_type'] == '') {
+					// The object type couldn't be determined. We don't have it and we can't fetch it. We ignore this activity.
 				} else {
 					self::storeUnhandledActivity(true, $type, $object_data, $activity, $body, $uid, $trust_source, $push, $signer);
 				}
@@ -786,7 +788,17 @@ class Receiver
 			return;
 		}
 
-		$tempfile = tempnam(System::getTempPath(), ($unknown  ? 'unknown-' : 'unhandled-') . str_replace(':', '-', $type) . '-' . str_replace(':', '-', $object_data['object_type']) . '-' . str_replace(':', '-', $object_data['object_object_type'] ?? '') . '-');
+		$file = ($unknown  ? 'unknown-' : 'unhandled-') . str_replace(':', '-', $type) . '-';
+	
+		if (!empty($object_data['object_type'])) {
+			$file .= str_replace(':', '-', $object_data['object_type']) . '-';
+		}
+
+		if (!empty($object_data['object_object_type'])) {
+			$file .= str_replace(':', '-', $object_data['object_object_type']) . '-';
+		}
+
+		$tempfile = tempnam(System::getTempPath(), $file);
 		file_put_contents($tempfile, json_encode(['activity' => $activity, 'body' => $body, 'uid' => $uid, 'trust_source' => $trust_source, 'push' => $push, 'signer' => $signer, 'object_data' => $object_data], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
 		Logger::notice('Unknown activity stored', ['type' => $type, 'object_type' => $object_data['object_type'], $object_data['object_object_type'] ?? '', 'file' => $tempfile]);
 	}