Push discovered status through streaming API within a time window (#6484)

Time window of 6 hours

app/lib/activitypub/activity.rb

@@ -74,7 +74,7 @@ class ActivityPub::Activity
 
     # Only continue if the status is supposed to have
     # arrived in real-time
-    return unless @options[:override_timestamps]
+    return unless @options[:override_timestamps] || status.within_realtime_window?
 
     distribute_to_followers(status)
   end

app/lib/ostatus/activity/creation.rb

@@ -61,7 +61,7 @@ class OStatus::Activity::Creation < OStatus::Activity::Base
     Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
 
     LinkCrawlWorker.perform_async(status.id) unless status.spoiler_text?
-    DistributionWorker.perform_async(status.id) if @options[:override_timestamps]
+    DistributionWorker.perform_async(status.id) if @options[:override_timestamps] || status.within_realtime_window?
 
     status
   end

app/models/status.rb

@@ -80,6 +80,8 @@ class Status < ApplicationRecord
 
   delegate :domain, to: :account, prefix: true
 
+  REAL_TIME_WINDOW = 6.hours
+
   def searchable_by(preloaded = nil)
     ids = [account_id]
 
@@ -108,6 +110,10 @@ class Status < ApplicationRecord
     !reblog_of_id.nil?
   end
 
+  def within_realtime_window?
+    created_at >= REAL_TIME_WINDOW.ago
+  end
+
   def verb
     if destroyed?
       :delete