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authorAkihiko Odaki <akihiko.odaki.4i@stu.hosei.ac.jp>2018-03-26 21:02:10 +0900
committerEugen Rochko <eugen@zeonfederated.com>2018-03-26 14:02:10 +0200
commit40e5d2303ba1edc51beae66cc15263675980106a (patch)
tree42364f04c30bab43a27cc6ea17173ae825cad153 /app/models/preview_card.rb
parent18965cb0e611b226c6252f1669f228f5b95f1ac6 (diff)
Validate HTTP response length while receiving (#6891)
to_s method of HTTP::Response keeps blocking while it receives the whole
content, no matter how it is big. This means it may waste time to receive
unacceptably large files. It may also consume memory and disk in the
process. This solves the inefficency by checking response length while
receiving.
Diffstat (limited to 'app/models/preview_card.rb')
-rw-r--r--app/models/preview_card.rb5
1 files changed, 3 insertions, 2 deletions
diff --git a/app/models/preview_card.rb b/app/models/preview_card.rb
index 86eecdfe5..0c82f06ce 100644
--- a/app/models/preview_card.rb
+++ b/app/models/preview_card.rb
@@ -26,6 +26,7 @@
 
 class PreviewCard < ApplicationRecord
   IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze
+  LIMIT = 1.megabytes
 
   self.inheritance_column = false
 
@@ -36,11 +37,11 @@ class PreviewCard < ApplicationRecord
   has_attached_file :image, styles: { original: { geometry: '400x400>', file_geometry_parser: FastGeometryParser } }, convert_options: { all: '-quality 80 -strip' }
 
   include Attachmentable
-  include Remotable
 
   validates :url, presence: true, uniqueness: true
   validates_attachment_content_type :image, content_type: IMAGE_MIME_TYPES
-  validates_attachment_size :image, less_than: 1.megabytes
+  validates_attachment_size :image, less_than: LIMIT
+  remotable_attachment :image, LIMIT
 
   before_save :extract_dimensions, if: :link?