support mastodon account move notifications

Zotlabs/Lib/Activity.php

@@ -1356,8 +1356,9 @@ class Activity {
 
 	static function actor_store($url,$person_obj) {
 
-		if (! is_array($person_obj))
+		if (! is_array($person_obj)) {
 			return;
+		}
 
 //		logger('person_obj: ' . print_r($person_obj,true));
 
@@ -1373,6 +1374,13 @@ class Activity {
 			}
 		}
 
+		if (array_key_exists('movedTo',$person_obj) && $person_obj['movedTo'] && ! is_array($person_obj['movedTo'])) {
+			$tgt = self::fetch($person_obj['movedTo']);
+			self::actor_store($person_obj['movedTo'],$tgt);
+			ActivityPub::move($person_obj['id'],$tgt);
+			return;
+		}
+
 		$url = $person_obj['id'];
 
 		if (! $url) {

Zotlabs/Lib/ActivityPub.php

@@ -421,4 +421,48 @@ class ActivityPub {
 		return false;
 	}
 
+	static public function move($src,$dst) {
+
+		if (! ($src && $dst)) {
+			return;
+		}
+
+		if ($src && ! is_array($src)) {
+			$src = Activity::fetch($src);
+			if (is_array($src)) {
+				$src_xchan = $src['id'];
+			}
+		}
+
+		$approvals = null;
+
+		if ($dst && ! is_array($dst)) {
+			$dst = Activity::fetch($dst);
+			if (is_array($dst)) {
+				$dst_xchan = $dst['id'];
+				if (array_key_exists('alsoKnownAs',$dst)) {
+					if(! is_array($dst['alsoKnownAs'])) {
+						$dst['alsoKnownAs'] = [ $dst['alsoKnownAs'] ];
+					}
+					$approvals = $dst['alsoKnownAs'];
+				}
+			}
+		}
+
+		if(! ($src_xchan && $dst_xchan)) {
+			return;
+		}
+
+		if ($approvals) {
+			foreach($approvals as $approval) {
+				if($approval === $src_xchan) {
+					$r = q("update abook set abook_xchan = '%s' where abook_xchan = '%s'",
+						dbesc($dst_xchan),
+						dbesc($src_xchan)
+					);
+				}
+			}
+		}
+	}
+
 }

Zotlabs/Module/Inbox.php

@@ -242,6 +242,12 @@ class Inbox extends Controller {
 				case 'Delete':
 					Activity::drop($channel,$observer_hash,$AS);
 					break;
+
+				case 'Move':
+					if($observer_hash && $observer_hash === $AS->actor && Activity::is_an_actor($AS->obj) && Activity::is_an_actor($AS->tgt)) {
+						ActivityPub::move($AS->obj,$AS->tgt);
+					}
+					break;
 				case 'Add':
 				case 'Remove':
 				default: