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module CarrierWave
module Uploader
module ContentTypeBlacklist
extend ActiveSupport::Concern
included do
before :cache, :check_content_type_blacklist!
end
##
# Override this method in your uploader to provide a denylist of files content types
# which are not allowed to be uploaded.
# Not only strings but Regexp are allowed as well.
#
# === Returns
#
# [NilClass, String, Regexp, Array[String, Regexp]] a denylist of content types which are not allowed to be uploaded
#
# === Examples
#
# def content_type_denylist
# %w(text/json application/json)
# end
#
# Basically the same, but using a Regexp:
#
# def content_type_denylist
# [/(text|application)\/json/]
# end
#
def content_type_denylist
if respond_to?(:content_type_blacklist)
ActiveSupport::Deprecation.warn "#content_type_blacklist is deprecated, use #content_type_denylist instead." unless instance_variable_defined?(:@content_type_blacklist_warned)
@content_type_blacklist_warned = true
content_type_blacklist
end
end
private
def check_content_type_blacklist!(new_file)
return unless content_type_denylist
content_type = new_file.content_type
if blacklisted_content_type?(content_type)
raise CarrierWave::IntegrityError, I18n.translate(:"errors.messages.content_type_blacklist_error",
content_type: content_type, default: :"errors.messages.content_type_denylist_error")
end
end
def blacklisted_content_type?(content_type)
Array(content_type_denylist).any? { |item| content_type =~ /#{item}/ }
end
end # ContentTypeBlacklist
end # Uploader
end # CarrierWave
Version data entries
8 entries across 8 versions & 2 rubygems