Merge pull request #11015 from MrPetovan/task/10979-frio-time-tooltip

[friendica.git] / src / Core / Protocol.php

diff --git a/src/Core/Protocol.php b/src/Core/Protocol.php
index 796add5558184cc423a402bbcb6cfcdc4cf2d66d..bba7149a0462b848e4e3a6a101a2ec1f0256479a 100644 (file)
--- a/src/Core/Protocol.php
+++ b/src/Core/Protocol.php
@@ -21,7 +21,9 @@
 
 namespace Friendica\Core;
 
+use Friendica\Database\DBA;
 use Friendica\DI;
+use Friendica\Model\User;
 use Friendica\Network\HTTPException;
 use Friendica\Protocol\Activity;
 use Friendica\Protocol\ActivityPub;
@@ -208,6 +210,59 @@ class Protocol
                return $display_name . ' (' . self::getAddrFromProfileUrl($profile_url) . ')';
        }
 
+       /**
+        * Send a follow message to a remote server.
+        *
+        * @param int     $uid      User Id
+        * @param array   $contact  Contact being followed
+        * @param ?string $protocol Expected protocol
+        * @return bool Only returns false in the unlikely case an ActivityPub contact ID doesn't exist (???)
+        * @throws HTTPException\InternalServerErrorException
+        * @throws \ImagickException
+        */
+       public static function follow(int $uid, array $contact, ?string $protocol = null): bool
+       {
+               $owner = User::getOwnerDataById($uid);
+               if (!DBA::isResult($owner)) {
+                       return true;
+               }
+
+               $protocol = $protocol ?? $contact['protocol'];
+
+               if (in_array($protocol, [Protocol::OSTATUS, Protocol::DFRN])) {
+                       // create a follow slap
+                       $item = [
+                               'verb'    => Activity::FOLLOW,
+                               'gravity' => GRAVITY_ACTIVITY,
+                               'follow'  => $contact['url'],
+                               'body'    => '',
+                               'title'   => '',
+                               'guid'    => '',
+                               'uri-id'  => 0,
+                       ];
+
+                       $slap = OStatus::salmon($item, $owner);
+
+                       if (!empty($contact['notify'])) {
+                               Salmon::slapper($owner, $contact['notify'], $slap);
+                       }
+               } elseif ($protocol == Protocol::DIASPORA) {
+                       $contact = Diaspora::sendShare($owner, $contact);
+                       Logger::notice('share returns: ' . $contact);
+               } elseif ($protocol == Protocol::ACTIVITYPUB) {
+                       $activity_id = ActivityPub\Transmitter::activityIDFromContact($contact['id']);
+                       if (empty($activity_id)) {
+                               // This really should never happen
+                               return false;
+                       }
+
+                       $success = ActivityPub\Transmitter::sendActivity('Follow', $contact['url'], $owner['uid'], $activity_id);
+                       Logger::notice('Follow returns: ' . $success);
+               }
+
+               return true;
+       }
+
        /**
         * Sends an unfriend message. Does not remove the contact
         *