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# frozen_string_literal: true
class ApplicationExperiment < Gitlab::Experiment
control { nil } # provide a default control for anonymous experiments
# We have experiments in ce/foss code even though they will never be available
# for ce/foss instances.
# We do that since we currently only experiment on the ee with SaaS instance.
# However, if the experiment is successful, we may commit the final code to ce/foss
# if the feature we are experimenting on is not a licensed or SaaS feature.
#
# This follows the https://docs.gitlab.com/ee/development/ee_features.html
# guidelines and therefore we have hardcoded `false` here.
def self.available?
false
end
def control_behavior
# define a default nil control behavior so we can omit it when not needed
end
# This is deprecated logic as of v0.6.0 and should eventually be removed, but
# needs to stay intact for actively running experiments. The new strategy
# utilizes Digest::SHA2, a secret seed, and generates a 64-byte string.
#
# https://gitlab.com/gitlab-org/gitlab/-/issues/334590
#
# @deprecated
def key_for(source, seed = name)
# If FIPS is enabled, we simply call the method available in the gem, which
# uses SHA2.
return super if Gitlab::FIPS.enabled?
# If FIPS isn't enabled, we use the legacy MD5 logic to keep existing
# experiment events working.
source = source.keys + source.values if source.is_a?(Hash)
Digest::MD5.hexdigest(Array(source).map { |v| identify(v) }.unshift(seed).join('|'))
end
def nest_experiment(other)
instance_exec(:nested, { label: other.name }, &Configuration.tracking_behavior)
end
private
def tracking_context(event_args)
{
namespace: context.try(:namespace) || context.try(:group),
project: context.try(:project),
user: user_or_actor
}.merge(event_args)
end
def user_or_actor
actor = context.try(:actor)
actor.respond_to?(:id) ? actor : context.try(:user)
end
end
ApplicationExperiment.prepend_mod
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