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Size: 756 Bytes
Versions: 20
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Contents
# frozen_string_literal: true
module Alchemy
# Provides methods to secure your picture attributes against DOS attacks.
#
class PictureAttributes
SECURE_ATTRIBUTES = %w(id size crop crop_from crop_size quality upsample).freeze
class << self
# Secures given attributes
#
# @param attributes [Hash]
# @return [String]
#
def secure(attributes)
Digest::SHA1.hexdigest(joined_attributes(attributes))[0..15]
end
private
# Takes attributes and joins them with the +security_token+ of your rails app.
#
def joined_attributes(attributes)
attributes.stringify_keys.values_at(*SECURE_ATTRIBUTES, Rails.configuration.secret_token).join('-')
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems