X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FProtocol%2FActivityPub%2FTransmitter.php;h=7d33fb2dc54713cdafdcd7a1bbe6713a811764e6;hb=8adc761da0e6012aa0176047812df15adb15c33a;hp=f5953e7c5fcdab1e5bc54aba944b48d0440d53ee;hpb=bc5646092e1ff8dd4254257789e03a4a47c51d40;p=friendica.git

diff --git a/src/Protocol/ActivityPub/Transmitter.php b/src/Protocol/ActivityPub/Transmitter.php
index f5953e7c5f..7d33fb2dc5 100644
--- a/src/Protocol/ActivityPub/Transmitter.php
+++ b/src/Protocol/ActivityPub/Transmitter.php
@@ -5,6 +5,7 @@
 namespace Friendica\Protocol\ActivityPub;
 
 use Friendica\BaseObject;
+use Friendica\Content\Feature;
 use Friendica\Database\DBA;
 use Friendica\Core\Config;
 use Friendica\Core\Logger;
@@ -342,7 +343,7 @@ class Transmitter
 			$actor_profile = APContact::getByURL($item['author-link']);
 		}
 
-		$terms = Term::tagArrayFromItemId($item['id'], TERM_MENTION);
+		$terms = Term::tagArrayFromItemId($item['id'], [Term::MENTION, Term::IMPLICIT_MENTION]);
 
 		if (!$item['private']) {
 			$data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
@@ -806,12 +807,12 @@ class Transmitter
 	{
 		$tags = [];
 
-		$terms = Term::tagArrayFromItemId($item['id']);
+		$terms = Term::tagArrayFromItemId($item['id'], [Term::HASHTAG, Term::MENTION, Term::IMPLICIT_MENTION]);
 		foreach ($terms as $term) {
-			if ($term['type'] == TERM_HASHTAG) {
+			if ($term['type'] == Term::HASHTAG) {
 				$url = System::baseUrl() . '/search?tag=' . urlencode($term['term']);
 				$tags[] = ['type' => 'Hashtag', 'href' => $url, 'name' => '#' . $term['term']];
-			} elseif ($term['type'] == TERM_MENTION) {
+			} elseif ($term['type'] == Term::MENTION || $term['type'] == Term::IMPLICIT_MENTION) {
 				$contact = Contact::getDetailsByURL($term['url']);
 				if (!empty($contact['addr'])) {
 					$mention = '@' . $contact['addr'];
@@ -891,12 +892,12 @@ class Transmitter
 	private static function mentionCallback($match)
 	{
 		if (empty($match[1])) {
-			return;
+			return '';
 		}
 
 		$data = Contact::getDetailsByURL($match[1]);
-		if (empty($data) || empty($data['nick'])) {
-			return;
+		if (empty($data['nick'])) {
+			return $match[0];
 		}
 
 		return '@[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
@@ -1037,8 +1038,14 @@ class Transmitter
 			$data['name'] = BBCode::toPlaintext($item['title'], false);
 		}
 
+		$permission_block = self::createPermissionBlockForItem($item, false);
+
 		$body = $item['body'];
 
+		if (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions')) {
+			$body = self::prependMentions($body, $permission_block);
+		}
+
 		if ($type == 'Note') {
 			$body = self::removePictures($body);
 		}
@@ -1069,7 +1076,7 @@ class Transmitter
 			$data['generator'] = ['type' => 'Application', 'name' => $item['app']];
 		}
 
-		$data = array_merge($data, self::createPermissionBlockForItem($item, false));
+		$data = array_merge($data, $permission_block);
 
 		return $data;
 	}
@@ -1310,6 +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,
@@ -1422,4 +1436,28 @@ class Transmitter
 		$signed = LDSignature::sign($data, $owner);
 		HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 	}
+
+	private static function prependMentions($body, array $permission_block)
+	{
+		if (Config::get('system', 'disable_implicit_mentions')) {
+			return $body;
+		}
+
+		$mentions = [];
+
+		foreach ($permission_block['to'] as $profile_url) {
+			$profile = Contact::getDetailsByURL($profile_url);
+			if (!empty($profile['addr'])
+				&& $profile['contact-type'] != Contact::TYPE_COMMUNITY
+				&& !strstr($body, $profile['addr'])
+				&& !strstr($body, $profile_url)
+			) {
+				$mentions[] = '@[url=' . $profile_url . ']' . $profile['nick'] . '[/url]';
+			}
+		}
+
+		$mentions[] = $body;
+
+		return implode(' ', $mentions);
+	}
 }