Preparation for suggestions under AP

src/Protocol/ActivityPub/Transmitter.php

@@ -797,6 +797,36 @@ class Transmitter
 		return $data;
 	}
 
+	/**
+	 * Transmits a contact suggestion to a given inbox
+	 *
+	 * @param integer $uid User ID
+	 * @param string $inbox Target inbox
+	 * @param integer $suggestion_id Suggestion ID
+	 */
+	public static function sendContactSuggestion($uid, $inbox, $suggestion_id)
+	{
+		$owner = User::getOwnerDataById($uid);
+		$profile = APContact::getByURL($owner['url']);
+
+		$suggestion = DBA::selectFirst('fsuggest', ['url', 'note', 'created'], ['id' => $suggestion_id]);
+
+		$data = ['@context' => 'https://www.w3.org/ns/activitystreams',
+			'id' => System::baseUrl() . '/activity/' . System::createGUID(),
+			'type' => 'Announce',
+			'actor' => $owner['url'],
+			'object' => $suggestion['url'],
+			'content' => $suggestion['note'],
+			'published' => DateTimeFormat::utc($suggestion['created'] . '+00:00', DateTimeFormat::ATOM),
+			'to' => [ActivityPub::PUBLIC_COLLECTION],
+			'cc' => []];
+
+		$signed = LDSignature::sign($data, $owner);
+
+		logger('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', LOGGER_DEBUG);
+		HTTPSignature::transmit($signed, $inbox, $uid);
+	}
+
 	/**
 	 * Transmits a profile deletion to a given inbox
 	 *

src/Worker/APDelivery.php

@@ -25,6 +25,7 @@ class APDelivery extends BaseObject
 
 		if ($cmd == Delivery::MAIL) {
 		} elseif ($cmd == Delivery::SUGGESTION) {
+			ActivityPub\Transmitter::sendContactSuggestion($uid, $inbox, $item_id);
 		} elseif ($cmd == Delivery::RELOCATION) {
 		} elseif ($cmd == Delivery::REMOVAL) {
 			ActivityPub\Transmitter::sendProfileDeletion($uid, $inbox);