debian-mirror-gitlab/app/models/concerns/featurable.rb

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2020-06-23 00:09:42 +05:30
# frozen_string_literal: true
# == Featurable concern
#
# This concern adds features (tools) functionality to Project and Group
# To enable features you need to call `set_available_features`
#
# Example:
#
# class ProjectFeature
# include Featurable
# set_available_features %i(wiki merge_request)
module Featurable
extend ActiveSupport::Concern
# Can be enabled only for members, everyone or disabled
# Access control is made only for non private containers.
#
# Permission levels:
#
# Disabled: not enabled for anyone
# Private: enabled only for team members
# Enabled: enabled for everyone able to access the project
# Public: enabled for everyone (only allowed for pages)
DISABLED = 0
PRIVATE = 10
ENABLED = 20
PUBLIC = 30
STRING_OPTIONS = HashWithIndifferentAccess.new({
'disabled' => DISABLED,
'private' => PRIVATE,
'enabled' => ENABLED,
'public' => PUBLIC
}).freeze
class_methods do
def set_available_features(available_features = [])
@available_features = available_features
class_eval do
available_features.each do |feature|
define_method("#{feature}_enabled?") do
public_send("#{feature}_access_level") > DISABLED # rubocop:disable GitlabSecurity/PublicSend
end
end
end
end
def available_features
@available_features
end
def access_level_attribute(feature)
feature = ensure_feature!(feature)
"#{feature}_access_level".to_sym
end
def quoted_access_level_column(feature)
attribute = connection.quote_column_name(access_level_attribute(feature))
table = connection.quote_table_name(table_name)
"#{table}.#{attribute}"
end
def access_level_from_str(level)
STRING_OPTIONS.fetch(level)
end
def str_from_access_level(level)
STRING_OPTIONS.key(level)
end
def ensure_feature!(feature)
feature = feature.model_name.plural if feature.respond_to?(:model_name)
feature = feature.to_sym
raise ArgumentError, "invalid feature: #{feature}" unless available_features.include?(feature)
feature
end
end
def access_level(feature)
public_send(self.class.access_level_attribute(feature)) # rubocop:disable GitlabSecurity/PublicSend
end
def feature_available?(feature, user)
# This feature might not be behind a feature flag at all, so default to true
return false unless ::Feature.enabled?(feature, user, default_enabled: true)
get_permission(user, feature)
end
def string_access_level(feature)
self.class.str_from_access_level(access_level(feature))
end
end