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-rw-r--r--activestorage/app/controllers/active_storage/blobs_controller.rb14
1 files changed, 14 insertions, 0 deletions
diff --git a/activestorage/app/controllers/active_storage/blobs_controller.rb b/activestorage/app/controllers/active_storage/blobs_controller.rb
new file mode 100644
index 0000000000..4fc3fbe824
--- /dev/null
+++ b/activestorage/app/controllers/active_storage/blobs_controller.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+# Take a signed permanent reference for a blob and turn it into an expiring service URL for download.
+# Note: These URLs are publicly accessible. If you need to enforce access protection beyond the
+# security-through-obscurity factor of the signed blob references, you'll need to implement your own
+# authenticated redirection controller.
+class ActiveStorage::BlobsController < ActiveStorage::BaseController
+ include ActiveStorage::SetBlob
+
+ def show
+ expires_in ActiveStorage.service_urls_expire_in
+ redirect_to @blob.service_url(disposition: params[:disposition])
+ end
+end