Fix #416 - Generate random unique 14-byte (19 characters) shortcodes

for local attachments, use them in URLs. Check status privacy
before redirecting to actual file.

1 files changed, 14 insertions, 0 deletions

diff --git a/db/migrate/20170105224407_add_shortcode_to_media_attachments.rb b/db/migrate/20170105224407_add_shortcode_to_media_attachments.rb
new file mode 100644
index 000000000..2685ae150
--- /dev/null
+++ b/db/migrate/20170105224407_add_shortcode_to_media_attachments.rb
@@ -0,0 +1,14 @@
+class AddShortcodeToMediaAttachments < ActiveRecord::Migration[5.0]
+  def up
+    add_column :media_attachments, :shortcode, :string, null: true, default: nil
+    add_index :media_attachments, :shortcode, unique: true
+
+    # Migrate old links
+    MediaAttachment.local.update_all('shortcode = id')
+  end
+
+  def down
+  	remove_index :media_attachments, :shortcode
+  	remove_column :media_attachments, :shortcode
+  end
+end