Don't break when notice grabber fails

It's better to fragment the integrity of a note than to fail publishing a note

actions/apactorfollowers.php

@@ -108,7 +108,7 @@ class apActorFollowersAction extends ManagedAction
     }
 
     /**
-     * Generates a list of followers for a given profile.
+     * Generates a list of stalkers for a given profile.
      *
      * @author Diogo Cordeiro <diogo@fc.up.pt>
      * @param Profile $profile

actions/apactorfollowing.php

@@ -108,7 +108,7 @@ class apActorFollowingAction extends ManagedAction
     }
 
     /**
-     * Generates a list of people following given profile.
+     * Generates the list of those a given profile is stalking.
      *
      * @author Diogo Cordeiro <diogo@fc.up.pt>
      * @param Profile $profile

classes/Activitypub_notice.php

@@ -188,11 +188,15 @@ class Activitypub_notice extends Managed_DataObject
         if (isset($settings['inReplyTo'])) {
             try {
                 $inReplyTo = ActivityPubPlugin::grab_notice_from_url($settings['inReplyTo']);
+                $act->context->replyToID  = $inReplyTo->getUri();
+                $act->context->replyToUrl = $inReplyTo->getUrl();
             } catch (Exception $e) {
-                throw new Exception('Invalid Object inReplyTo value: '.$e->getMessage());
+                // It failed to grab, maybe we got this note from another source
+                // (e.g.: OStatus) that handles this differently or we really
+                // failed to get it...
+                // Welp, nothing that we can do about, let's
+                // just fake we don't have such notice.
             }
-            $act->context->replyToID  = $inReplyTo->getUri();
-            $act->context->replyToUrl = $inReplyTo->getUrl();
         } else {
             $inReplyTo = null;
         }

classes/Activitypub_profile.php

@@ -243,7 +243,7 @@ class Activitypub_profile extends Managed_DataObject
         $inboxes = Activitypub_explorer::get_actor_inboxes_uri($url);
 
         if ($inboxes == null) {
-            throw new Exception ('This is not an ActivityPub user thus AProfile is politely refusing to proceed.');
+            throw new Exception('This is not an ActivityPub user thus AProfile is politely refusing to proceed.');
         }
 
         $aprofile->created = $aprofile->modified = common_sql_now();

utils/postman.php

@@ -68,7 +68,7 @@ class Activitypub_postman
         $followers = apActorFollowersAction::generate_followers($this->actor, 0, null);
         foreach ($followers as $sub) {
             try {
-            $to[]= Activitypub_profile::from_profile($discovery->lookup($sub)[0]);
+                $to[]= Activitypub_profile::from_profile($discovery->lookup($sub)[0]);
             } catch (Exception $e) {
                 // Not an ActivityPub Remote Follower, let it go
             }