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-rw-r--r--app/models/concerns/attachmentable.rb11
-rw-r--r--app/models/media_attachment.rb3
2 files changed, 14 insertions, 0 deletions
diff --git a/app/models/concerns/attachmentable.rb b/app/models/concerns/attachmentable.rb
index 3bbc6453c..1e8c4806f 100644
--- a/app/models/concerns/attachmentable.rb
+++ b/app/models/concerns/attachmentable.rb
@@ -9,6 +9,7 @@ module Attachmentable
   GIF_MATRIX_LIMIT = 921_600    # 1280x720px
 
   included do
+    before_post_process :obfuscate_file_name
     before_post_process :set_file_extensions
     before_post_process :check_image_dimensions
     before_post_process :set_file_content_type
@@ -68,4 +69,14 @@ module Attachmentable
   rescue Terrapin::CommandLineError
     ''
   end
+
+  def obfuscate_file_name
+    self.class.attachment_definitions.each_key do |attachment_name|
+      attachment = send(attachment_name)
+
+      next if attachment.blank?
+
+      attachment.instance_write :file_name, SecureRandom.hex(8) + File.extname(attachment.instance_read(:file_name))
+    end
+  end
 end
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 573ef5dfc..1fd0adfd0 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -202,9 +202,12 @@ class MediaAttachment < ApplicationRecord
   end
 
   after_commit :reset_parent_cache, on: :update
+
   before_create :prepare_description, unless: :local?
   before_create :set_shortcode
+
   before_post_process :set_type_and_extension
+
   before_save :set_meta
 
   class << self