Detect linked posts and add them as quote

src/Content/Item.php

@@ -608,9 +608,10 @@ class Item
 	 *
 	 * @param integer $UriId
 	 * @param integer $uid
+	 * @param bool $add_media
 	 * @return string
 	 */
-	public function createSharedPostByUriId(int $UriId, int $uid = 0): string
+	public function createSharedPostByUriId(int $UriId, int $uid = 0, bool $add_media = false): string
 	{
 		$fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 		$shared_item = Post::selectFirst($fields, ['uri-id' => $UriId, 'uid' => [$uid, 0], 'private' => [ModelItem::PUBLIC, ModelItem::UNLISTED]]);
@@ -619,7 +620,7 @@ class Item
 			return '';
 		}
 
-		return $this->createSharedBlockByArray($shared_item);
+		return $this->createSharedBlockByArray($shared_item, $add_media);
 	}
 
 	/**
@@ -627,9 +628,10 @@ class Item
 	 *
 	 * @param string $guid
 	 * @param integer $uid
+	 * @param bool $add_media
 	 * @return string
 	 */
-	public function createSharedPostByGuid(string $guid, int $uid = 0, string $host = ''): string
+	public function createSharedPostByGuid(string $guid, int $uid = 0, string $host = '', bool $add_media = false): string
 	{
 		$fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
 		$shared_item = Post::selectFirst($fields, ['guid' => $guid, 'uid' => [$uid, 0], 'private' => [ModelItem::PUBLIC, ModelItem::UNLISTED]]);
@@ -646,7 +648,7 @@ class Item
 			return '';
 		}
 
-		return $this->createSharedBlockByArray($shared_item);
+		return $this->createSharedBlockByArray($shared_item, $add_media);
 	}
 
 	/**
@@ -678,7 +680,7 @@ class Item
 
 		// If it is a reshared post then reformat it to avoid display problems with two share elements
 		if (Diaspora::isReshare($item['body'], false)) {
-			if (!empty($shared['guid']) && ($encaspulated_share = self::createSharedPostByGuid($shared['guid']))) {
+			if (!empty($shared['guid']) && ($encaspulated_share = self::createSharedPostByGuid($shared['guid'], 0, '', $add_media))) {
 				$item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $encaspulated_share, $item['body']);
 			}
 

src/Model/Item.php

@@ -2946,17 +2946,44 @@ class Item
 		$body = $item['body'] ?? '';
 		$shared = BBCode::fetchShareAttributes($body);
 		if (!empty($shared['guid'])) {
-			$shared_item = Post::selectFirst(['uri-id', 'plink', 'has-media'], ['guid' => $shared['guid']]);
+			$shared_item = Post::selectFirst(['uri-id', 'guid', 'plink', 'has-media'], ['guid' => $shared['guid'], 'uid' => [$item['uid'], 0]]);
-			$shared_uri_id = $shared_item['uri-id'] ?? 0;
+		}
-			$shared_links = [strtolower($shared_item['plink'] ?? '')];
+
-			$shared_attachments = Post\Media::splitAttachments($shared_uri_id, $shared['guid'], [], $shared_item['has-media'] ?? false);
+		$fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network', 'has-media'];
+
+		$shared_uri_id = 0;
+		$shared_links  = [];
+
+		if (empty($shared_item['uri-id']) && !empty($item['quote-uri-id'])) {
+			$shared_item = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id']]);
+			$quote_uri_id = $item['quote-uri-id'] ?? 0;
+			$shared_links[] = strtolower($item['quote-uri']);
+		} elseif (empty($shared_item['uri-id']) && empty($item['quote-uri-id'])) {
+			$media = Post\Media::getByURIId($item['uri-id'], [Post\Media::ACTIVITY]);
+			if (!empty($media)) {
+				$shared_item = Post::selectFirst($fields, ['plink' => $media[0]['url'], 'uid' => [$item['uid'], 0]]);
+
+				if (empty($shared_item['uri-id'])) {
+					$shared_item = Post::selectFirst($fields, ['uri' => $media[0]['url'], 'uid' => [$item['uid'], 0]]);
+					$shared_links[] = strtolower($media[0]['url']);
+				}
+
+				$quote_uri_id = $shared_item['uri-id'] ?? 0;
+			}
+		}
+
+		if (!empty($quote_uri_id)) {
+			$item['body'] .= "\n" . DI::contentItem()->createSharedBlockByArray($shared_item);
+		}
+
+		if (!empty($shared_item['uri-id'])) {
+			$shared_uri_id = $shared_item['uri-id'];
+			$shared_links[] = strtolower($shared_item['plink']);
+			$shared_attachments = Post\Media::splitAttachments($shared_uri_id, $shared_item['guid'], [], $shared_item['has-media']);
 			$shared_links = array_merge($shared_links, array_column($shared_attachments['visual'], 'url'));
 			$shared_links = array_merge($shared_links, array_column($shared_attachments['link'], 'url'));
 			$shared_links = array_merge($shared_links, array_column($shared_attachments['additional'], 'url'));
 			$item['body'] = self::replaceVisualAttachments($shared_attachments, $item['body']);
-		} else {
-			$shared_uri_id = 0;
-			$shared_links = [];
 		}
 
 		$attachments = Post\Media::splitAttachments($item['uri-id'], $item['guid'] ?? '', $shared_links, $item['has-media'] ?? false);
@@ -3278,7 +3305,7 @@ class Item
 		}
 		DI::profiler()->stopRecording();
 
-		if (isset($data['url']) && !in_array($data['url'], $ignore_links)) {
+		if (isset($data['url']) && !in_array(strtolower($data['url']), $ignore_links)) {
 			if (!empty($data['description']) || !empty($data['image']) || !empty($data['preview'])) {
 				$parts = parse_url($data['url']);
 				if (!empty($parts['scheme']) && !empty($parts['host'])) {

src/Model/Post/Media.php

@@ -23,10 +23,12 @@ namespace Friendica\Model\Post;
 
 use Friendica\Content\Text\BBCode;
 use Friendica\Core\Logger;
+use Friendica\Core\Protocol;
 use Friendica\Core\System;
 use Friendica\Database\Database;
 use Friendica\Database\DBA;
 use Friendica\DI;
+use Friendica\Model\Contact;
 use Friendica\Model\Item;
 use Friendica\Model\Photo;
 use Friendica\Model\Post;
@@ -56,6 +58,7 @@ class Media
 	const HTML        = 17;
 	const XML         = 18;
 	const PLAIN       = 19;
+	const ACTIVITY    = 20;
 	const DOCUMENT    = 128;
 
 	/**
@@ -215,6 +218,10 @@ class Media
 			$media = self::addType($media);
 		}
 
+		if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
+			$media = self::addActivity($media);
+		}
+
 		if ($media['type'] == self::HTML) {
 			$data = ParseUrl::getSiteinfoCached($media['url'], false);
 			$media['preview'] = $data['images'][0]['src'] ?? null;
@@ -232,6 +239,65 @@ class Media
 		return $media;
 	}
 
+	/**
+	 * Adds the activity type if the media entry is linked to an activity
+	 *
+	 * @param array $media
+	 * @return array
+	 */
+	private static function addActivity(array $media): array
+	{
+		$id = Item::fetchByLink($media['url']);
+		if (empty($id)) {
+			return $media;
+		}
+
+		$item = Post::selectFirst([], ['id' => $id, 'network' => Protocol::FEDERATED]);
+		if (empty($item['id'])) {
+			Logger::debug('Not a federated activity', ['id' => $id, 'uri-id' => $media['uri-id'], 'url' => $media['url']]);
+			return $media;
+		}
+
+		if (!empty($item['plink']) && Strings::compareLink($item['plink'], $media['url']) &&
+			parse_url($item['plink'], PHP_URL_HOST) != parse_url($item['uri'], PHP_URL_HOST)) {
+			Logger::debug('Not a link to an activity', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
+			return $media;
+		}
+
+		if (in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
+			$media['mimetype'] = 'application/activity+json';
+		} elseif ($item['network'] == Protocol::DIASPORA) {
+			$media['mimetype'] = 'application/xml';
+		} else {
+			$media['mimetype'] = '';
+		}
+
+		$contact = Contact::getById($item['author-id'], ['avatar', 'gsid']);
+		if (!empty($contact['gsid'])) {
+			$gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
+		}
+		
+		$media['type'] = self::ACTIVITY;
+		$media['media-uri-id'] = $item['uri-id'];
+		$media['height'] = null;
+		$media['width'] = null;
+		$media['size'] = null;
+		$media['preview'] = null;
+		$media['preview-height'] = null;
+		$media['preview-width'] = null;
+		$media['description'] = $item['body'];
+		$media['name'] = $item['title'];
+		$media['author-url'] = $item['author-link'];
+		$media['author-name'] = $item['author-name'];
+		$media['author-image'] = $contact['avatar'] ?? $item['author-avatar'];
+		$media['publisher-url'] = $gserver['url'] ?? null;
+		$media['publisher-name'] = $gserver['site_name'] ?? null;
+		$media['publisher-image'] = null;
+
+		Logger::debug('Activity detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
+		return $media;
+	}
+
 	/**
 	 * Fetch media data from local resources
 	 * @param array $media

src/Protocol/ActivityPub/Processor.php

@@ -170,7 +170,7 @@ class Processor
 	}
 
 	/**
-	 * Stire attachment data
+	 * Store attachment data
 	 *
 	 * @param array   $activity
 	 * @param array   $item
@@ -187,7 +187,7 @@ class Processor
 	}
 
 	/**
-	 * Store attachment data
+	 * Store question data
 	 *
 	 * @param array   $activity
 	 * @param array   $item

src/Protocol/ActivityPub/Transmitter.php

@@ -1674,13 +1674,8 @@ class Transmitter
 				}
 				$data['quoteUrl'] = $item['quote-uri'];
 			} elseif (!empty($item['quote-uri']) && !Diaspora::isReshare($body, false)) {
-				$fields = ['uri-id', 'uri', 'body', 'title', 'author-name', 'author-link', 'author-avatar', 'guid', 'created', 'plink', 'network'];
+				$body .= "\n" . DI::contentItem()->createSharedPostByUriId($item['quote-uri-id'], $item['uid'], true);
-				$shared_item = Post::selectFirst($fields, ['uri-id' => $item['quote-uri-id']]);
+				$item['body'] = Item::improveSharedDataInBody($item, true);
-				if (!empty($shared_item['uri-id'])) {
-					$shared_item['body'] = Post\Media::addAttachmentsToBody($shared_item['uri-id'], $shared_item['body']);
-					$body .= "\n" . DI::contentItem()->createSharedBlockByArray($shared_item);
-					$item['body'] = Item::improveSharedDataInBody($item, true);
-				}
 			}
 
 			$data['content'] = BBCode::convertForUriId($item['uri-id'], $body, BBCode::ACTIVITYPUB);

static/dbstructure.config.php

@@ -55,7 +55,7 @@
 use Friendica\Database\DBA;
 
 if (!defined('DB_UPDATE_VERSION')) {
-	define('DB_UPDATE_VERSION', 1485);
+	define('DB_UPDATE_VERSION', 1486);
 }
 
 return [
@@ -1321,6 +1321,7 @@ return [
 			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
 			"uri-id" => ["type" => "int unsigned", "not null" => "1", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the item uri"],
 			"url" => ["type" => "varbinary(1024)", "not null" => "1", "comment" => "Media URL"],
+			"media-uri-id" => ["type" => "int unsigned", "foreign" => ["item-uri" => "id"], "comment" => "Id of the item-uri table entry that contains the activities uri-id"],
 			"type" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => "Media type"],
 			"mimetype" => ["type" => "varchar(60)", "comment" => ""],
 			"height" => ["type" => "smallint unsigned", "comment" => "Height of the media"],
@@ -1342,6 +1343,7 @@ return [
 			"PRIMARY" => ["id"],
 			"uri-id-url" => ["UNIQUE", "uri-id", "url(512)"],
 			"uri-id-id" => ["uri-id", "id"],
+			"media-uri-id" => ["media-uri-id"],
 		]
 	],
 	"post-question" => [