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Contents
# encoding: utf-8
module CarrierWave
module Uploader
module ExtensionWhitelist
extend ActiveSupport::Concern
included do
before :cache, :check_whitelist!
end
##
# Override this method in your uploader to provide a white list of extensions which
# are allowed 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 white list, `\A` and `\z` are automatically added to
# the Regexp expression, also case insensitive.
#
# === Returns
#
# [NilClass, Array[String,Regexp]] a white list of extensions which are allowed to be uploaded
#
# === Examples
#
# def extension_white_list
# %w(jpg jpeg gif png)
# end
#
# Basically the same, but using a Regexp:
#
# def extension_white_list
# [/jpe?g/, 'gif', 'png']
# end
#
def extension_white_list; end
private
def check_whitelist!(new_file)
extension = new_file.extension.to_s
if extension_white_list and not extension_white_list.detect { |item| extension =~ /\A#{item}\z/i }
raise CarrierWave::IntegrityError, "You are not allowed to upload #{new_file.extension.inspect} files, allowed types: #{extension_white_list.inspect}"
end
end
end # ExtensionWhitelist
end # Uploader
end # CarrierWave
Version data entries
11 entries across 11 versions & 3 rubygems