Sending direct messages via AP does work now - receiving is pending

src/Protocol/ActivityPub.php

@@ -44,8 +44,10 @@ class ActivityPub
 		['vcard' => 'http://www.w3.org/2006/vcard/ns#',
 		'dfrn' => 'http://purl.org/macgirvin/dfrn/1.0/',
 		'diaspora' => 'https://diasporafoundation.org/ns/',
+		'litepub' => 'http://litepub.social/ns#',
 		'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
-		'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag']];
+		'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
+		'directMessage' => 'litepub:directMessage']];
 	const ACCOUNT_TYPES = ['Person', 'Organization', 'Service', 'Group', 'Application'];
 	/**
 	 * Checks if the web request is done for the AP protocol

src/Protocol/ActivityPub/Transmitter.php

@@ -631,6 +631,100 @@ class Transmitter
 		return $inboxes;
 	}
 
+	/**
+	 * Creates an array in the structure of the item table for a given mail id
+	 *
+	 * @param integer $mail_id
+	 *
+	 * @return array
+	 * @throws \Exception
+	 */
+	public static function ItemArrayFromMail($mail_id)
+	{
+		$mail = DBA::selectFirst('mail', [], ['id' => $mail_id]);
+
+		$reply = DBA::selectFirst('mail', ['uri'], ['parent-uri' => $mail['parent-uri'], 'reply' => false]);
+
+		$mail['author-link'] = $mail['owner-link'] = $mail['from-url'];
+		$mail['allow_cid'] = '<'.$mail['contact-id'].'>';
+		$mail['allow_gid'] = '';
+		$mail['deny_cid'] = '';
+		$mail['deny_gid'] = '';
+		$mail['private'] = true;
+		$mail['deleted'] = false;
+		$mail['edited'] = $mail['created'];
+		$mail['plink'] = $mail['uri'];
+		$mail['thr-parent'] = $reply['uri'];
+		$mail['gravity'] = ($mail['reply'] ? GRAVITY_COMMENT: GRAVITY_PARENT);
+
+		$mail['event-type'] = '';
+		$mail['attach'] = '';
+
+		$mail['parent'] = 0;
+
+		return $mail;
+	}
+
+	/**
+	 * Creates an activity array for a given mail id
+	 *
+	 * @param integer $mail_id
+	 * @param boolean $object_mode Is the activity item is used inside another object?
+	 *
+	 * @return array of activity
+	 * @throws \Exception
+	 */
+	public static function createActivityFromMail($mail_id, $object_mode = false)
+	{
+		$mail = self::ItemArrayFromMail($mail_id);
+		$object = self::createNote($mail);
+
+		$object['to'] = $object['cc'];
+		unset($object['cc']);
+
+		$object['tag'] = [['type' => 'Mention', 'href' => $object['to'][0], 'name' => 'test']];
+
+		if (!$object_mode) {
+			$data = ['@context' => ActivityPub::CONTEXT];
+		} else {
+			$data = [];
+		}
+
+		$data['id'] = $mail['uri'] . '#Create';
+		$data['type'] = 'Create';
+		$data['actor'] = $mail['author-link'];
+		$data['published'] = DateTimeFormat::utc($mail['created'] . '+00:00', DateTimeFormat::ATOM);
+		$data['instrument'] = self::getService();
+		$data = array_merge($data, self::createPermissionBlockForItem($mail, true));
+
+		if (empty($data['to']) && !empty($data['cc'])) {
+			$data['to'] = $data['cc'];
+		}
+
+		if (empty($data['to']) && !empty($data['bcc'])) {
+			$data['to'] = $data['bcc'];
+		}
+
+		unset($data['cc']);
+		unset($data['bcc']);
+
+		$object['to'] = $data['to'];
+		unset($object['cc']);
+		unset($object['bcc']);
+
+		$data['directMessage'] = true;
+
+		$data['object'] = $object;
+
+		$owner = User::getOwnerDataById($mail['uid']);
+
+		if (!$object_mode && !empty($owner)) {
+			return LDSignature::sign($data, $owner);
+		} else {
+			return $data;
+		}
+	}
+
 	/**
 	 * Returns the activity type of a given item
 	 *

src/Util/JsonLD.php

@@ -96,7 +96,8 @@ class JsonLD
 			'diaspora' => (object)['@id' => 'https://diasporafoundation.org/ns/', '@type' => '@id'],
 			'ostatus' => (object)['@id' => 'http://ostatus.org#', '@type' => '@id'],
 			'dc' => (object)['@id' => 'http://purl.org/dc/terms/', '@type' => '@id'],
-			'toot' => (object)['@id' => 'http://joinmastodon.org/ns#', '@type' => '@id']];
+			'toot' => (object)['@id' => 'http://joinmastodon.org/ns#', '@type' => '@id'],
+			'litepub' => (object)['@id' => 'http://litepub.social/ns#', '@type' => '@id']];
 
 		// Preparation for adding possibly missing content to the context
 		if (!empty($json['@context']) && is_string($json['@context'])) {

src/Worker/APDelivery.php

@@ -30,6 +30,10 @@ class APDelivery extends BaseObject
 		$success = true;
 
 		if ($cmd == Delivery::MAIL) {
+			$data = ActivityPub\Transmitter::createActivityFromMail($target_id);
+			if (!empty($data)) {
+				$success = HTTPSignature::transmit($data, $inbox, $uid);
+			}
 		} elseif ($cmd == Delivery::SUGGESTION) {
 			$success = ActivityPub\Transmitter::sendContactSuggestion($uid, $inbox, $target_id);
 		} elseif ($cmd == Delivery::RELOCATION) {

src/Worker/Notifier.php

@@ -76,6 +76,14 @@ class Notifier
 			}
 			$uid = $message['uid'];
 			$recipients[] = $message['contact-id'];
+
+			$mail = ActivityPub\Transmitter::ItemArrayFromMail($target_id);
+			$inboxes = ActivityPub\Transmitter::fetchTargetInboxes($mail, §uid, true);
+			foreach ($inboxes as $inbox) {
+				Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_id, 'inbox' => $inbox]);
+				Worker::add(['priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true],
+					'APDelivery', $cmd, $target_id, $inbox, $uid);
+			}
 		} elseif ($cmd == Delivery::SUGGESTION) {
 			$suggest = DBA::selectFirst('fsuggest', ['uid', 'cid'], ['id' => $target_id]);
 			if (!DBA::isResult($suggest)) {
@@ -593,7 +601,7 @@ class Notifier
 
 		$inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser(0);
 		foreach ($inboxes as $inbox) {
-			Logger::log('Account removal for user ' . $self_user_id . ' to ' . $inbox .' via ActivityPub', Logger::DEBUG);
+			Logger::info('Account removal via ActivityPub', ['uid' => $self_user_id, 'inbox' => $inbox]);
 			Worker::add(['priority' => PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
 				'APDelivery', Delivery::REMOVAL, '', $inbox, $self_user_id);
 		}
@@ -642,7 +650,7 @@ class Notifier
 		ActivityPub\Transmitter::createCachedActivityFromItem($target_item['id'], true);
 
 		foreach ($inboxes as $inbox) {
-			Logger::log('Deliver ' . $target_item['id'] .' to ' . $inbox .' via ActivityPub', Logger::DEBUG);
+			Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
 
 			Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
 					'APDelivery', $cmd, $target_item['id'], $inbox, $uid);