expire download links

app/models/account_config.rb

@@ -38,6 +38,7 @@ class AccountConfig < ApplicationRecord
   FORM_PREFILL_SIGNATURE_KEY = 'form_prefill_signature'
   ESIGNING_PREFERENCE_KEY = 'esigning_preference'
   DOWNLOAD_LINKS_AUTH_KEY = 'download_links_auth'
+  DOWNLOAD_LINKS_EXPIRE_KEY = 'download_links_expire'
   FORCE_SSO_AUTH_KEY = 'force_sso_auth'
   FLATTEN_RESULT_PDF_KEY = 'flatten_result_pdf'
   WITH_SIGNATURE_ID = 'with_signature_id'

app/models/submission.rb

@@ -114,16 +114,16 @@ class Submission < ApplicationRecord
     @fields_uuid_index ||= (template_fields || template.fields).index_by { |f| f['uuid'] }
   end
 
-  def audit_trail_url
+  def audit_trail_url(expires_at: nil)
     return if audit_trail.blank?
 
-    ActiveStorage::Blob.proxy_url(audit_trail.blob)
+    ActiveStorage::Blob.proxy_url(audit_trail.blob, expires_at:)
   end
   alias audit_log_url audit_trail_url
 
-  def combined_document_url
+  def combined_document_url(expires_at: nil)
     return if combined_document.blank?
 
-    ActiveStorage::Blob.proxy_url(combined_document.blob)
+    ActiveStorage::Blob.proxy_url(combined_document.blob, expires_at:)
   end
 end