From 11513519ce11e09c047b1723a4a47034ab187a4b Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Mon, 20 Feb 2023 06:41:28 +0000
Subject: [PATCH] Config option to process the "view" activity

---
 database.sql                          |  2 +-
 doc/database/db_config.md             | 25 +++++++++++++++++++++++++
 src/Protocol/Activity.php             | 15 ++++++++-------
 src/Protocol/ActivityPub/Receiver.php |  2 +-
 static/dbstructure.config.php         |  2 +-
 static/defaults.config.php            |  4 ++++
 update.php                            |  7 +++++++
 7 files changed, 47 insertions(+), 10 deletions(-)
 create mode 100644 doc/database/db_config.md

diff --git a/database.sql b/database.sql
index e890d7421a..053f0c7279 100644
--- a/database.sql
+++ b/database.sql
@@ -1,6 +1,6 @@
 -- ------------------------------------------
 -- Friendica 2023.03-dev (Giant Rhubarb)
--- DB_UPDATE_VERSION 1514
+-- DB_UPDATE_VERSION 1515
 -- ------------------------------------------
 
 
diff --git a/doc/database/db_config.md b/doc/database/db_config.md
new file mode 100644
index 0000000000..66796caeb1
--- /dev/null
+++ b/doc/database/db_config.md
@@ -0,0 +1,25 @@
+Table config
+===========
+
+main configuration storage
+
+Fields
+------
+
+| Field | Description               | Type          | Null | Key | Default | Extra          |
+| ----- | ------------------------- | ------------- | ---- | --- | ------- | -------------- |
+| id    |                           | int unsigned  | NO   | PRI | NULL    | auto_increment |
+| cat   | The category of the entry | varbinary(50) | NO   |     |         |                |
+| k     | The key of the entry      | varbinary(50) | NO   |     |         |                |
+| v     |                           | mediumtext    | YES  |     | NULL    |                |
+
+Indexes
+------------
+
+| Name    | Fields         |
+| ------- | -------------- |
+| PRIMARY | id             |
+| cat_k   | UNIQUE, cat, k |
+
+
+Return to [database documentation](help/database)
diff --git a/src/Protocol/Activity.php b/src/Protocol/Activity.php
index c5fca4a5cc..aa322f4cf2 100644
--- a/src/Protocol/Activity.php
+++ b/src/Protocol/Activity.php
@@ -171,6 +171,14 @@ final class Activity
 	 */
 	const READ       = ActivityNamespace::ACTIVITY2 . 'read';
 
+	/**
+	 * Indicates that the actor has viewed the object.
+	 *
+	 * @see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-view
+	 * @var string
+	 */
+	const VIEW       = ActivityNamespace::ACTIVITY2 . 'view';
+
 	const O_UNFOLLOW    = ActivityNamespace::OSTATUS . '/unfollow';
 	const O_UNFAVOURITE = ActivityNamespace::OSTATUS . '/unfavorite';
 
@@ -181,13 +189,6 @@ final class Activity
 	 */
 	const EMOJIREACT = ActivityNamespace::LITEPUB . '/emojireact';
 
-	/**
-	 * View notification from Peertube
-	 *
-	 * @var string
-	 */
-	const VIEW       = ActivityNamespace::PEERTUBE . '/view';
-
 	/**
 	 * likes (etc.) can apply to other things besides posts. Check if they are post children,
 	 * in which case we handle them specially
diff --git a/src/Protocol/ActivityPub/Receiver.php b/src/Protocol/ActivityPub/Receiver.php
index 16257c2f95..4b8f1557b8 100644
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@@ -559,7 +559,7 @@ class Receiver
 			return true;
 		}
 
-		if ($type == 'as:View') {
+		if (!DI::config()->get('system', 'process_view') && ($type == 'as:View')) {
 			Logger::info('View activities are ignored.', ['signer' => $signer, 'http_signer' => $http_signer]);
 			return true;
 		}
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index dcab1d0c87..83c890915d 100644
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -55,7 +55,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1514);
+	define('DB_UPDATE_VERSION', 1515);
 }
 
 return [
diff --git a/static/defaults.config.php b/static/defaults.config.php
index bb82473fa9..2c45e45e48 100644
--- a/static/defaults.config.php
+++ b/static/defaults.config.php
@@ -503,6 +503,10 @@ return [
 		// Sets the ImageMagick compression level for PNG images. Values range from 0 (uncompressed) to 9 (most compressed).
 		'png_quality' => 8,
 
+		// process_view (Boolean)
+		// Process the "View" activity that is used by Peertube. View activities are displayed, when "emoji_activities" are enabled. 
+		'process_view' => false,
+
 		// profiler (Boolean)
 		// Enable internal timings to help optimize code. Needed for "rendertime" addon.
 		'profiler' => false,
diff --git a/update.php b/update.php
index 86735f864c..d6988c1d9c 100644
--- a/update.php
+++ b/update.php
@@ -59,6 +59,7 @@ use Friendica\Model\Photo;
 use Friendica\Model\Post;
 use Friendica\Model\Profile;
 use Friendica\Model\User;
+use Friendica\Protocol\Activity;
 use Friendica\Protocol\Delivery;
 use Friendica\Security\PermissionSet\Repository\PermissionSet;
 
@@ -1287,3 +1288,9 @@ function update_1514()
 
 	return Update::SUCCESS;
 }
+
+function update_1515()
+{
+	DBA::update('verb', ['name' => Activity::VIEW], ['name' => 'https://joinpeertube.org/view']);
+	return Update::SUCCESS;
+}