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Contents
module CarrierWave
module Uploader
module ExtensionBlacklist
extend ActiveSupport::Concern
included do
before :cache, :check_extension_blacklist!
end
##
# Override this method in your uploader to provide a black list of extensions which
# are prohibited to be uploaded. Compares the file's extension case insensitive.
# Furthermore, not only strings but Regexp are allowed as well.
#
# When using a Regexp in the black list, `\A` and `\z` are automatically added to
# the Regexp expression, also case insensitive.
#
# === Returns
# [NilClass, String, Regexp, Array[String, Regexp]] a black list of extensions which are prohibited to be uploaded
#
# === Examples
#
# def extension_blacklist
# %w(swf tiff)
# end
#
# Basically the same, but using a Regexp:
#
# def extension_blacklist
# [/swf/, 'tiff']
# end
#
def extension_blacklist; end
private
def check_extension_blacklist!(new_file)
extension = new_file.extension.to_s
if extension_blacklist && blacklisted_extension?(extension)
raise CarrierWave::IntegrityError, I18n.translate(:"errors.messages.extension_blacklist_error", extension: new_file.extension.inspect, prohibited_types: Array(extension_blacklist).join(", "))
end
end
def blacklisted_extension?(extension)
Array(extension_blacklist).any? { |item| extension =~ /\A#{item}\z/i }
end
end
end
end
Version data entries
22 entries across 22 versions & 2 rubygems