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# frozen_string_literal: true
module StaticSiteEditor
class ConfigService < ::BaseContainerService
ValidationError = Class.new(StandardError)
def initialize(container:, current_user: nil, params: {})
super
@project = container
@repository = project.repository
@ref = params.fetch(:ref)
end
def execute
check_access!
file_config = load_file_config!
file_data = file_config.to_hash_with_defaults
generated_data = load_generated_config.data
check_for_duplicate_keys!(generated_data, file_data)
data = merged_data(generated_data, file_data)
ServiceResponse.success(payload: data)
rescue ValidationError => e
ServiceResponse.error(message: e.message)
rescue => e
Gitlab::ErrorTracking.track_and_raise_exception(e)
end
private
attr_reader :project, :repository, :ref
def static_site_editor_config_file
'.gitlab/static-site-editor.yml'
end
def check_access!
unless can?(current_user, :download_code, project)
raise ValidationError, 'Insufficient permissions to read configuration'
end
end
def load_file_config!
yaml = yaml_from_repo.presence || '{}'
file_config = Gitlab::StaticSiteEditor::Config::FileConfig.new(yaml)
unless file_config.valid?
raise ValidationError, file_config.errors.first
end
file_config
rescue Gitlab::StaticSiteEditor::Config::FileConfig::ConfigError => e
raise ValidationError, e.message
end
def load_generated_config
Gitlab::StaticSiteEditor::Config::GeneratedConfig.new(
repository,
ref,
params.fetch(:path),
params[:return_url]
)
end
def check_for_duplicate_keys!(generated_data, file_data)
duplicate_keys = generated_data.keys & file_data.keys
raise ValidationError.new("Duplicate key(s) '#{duplicate_keys}' found.") if duplicate_keys.present?
end
def merged_data(generated_data, file_data)
generated_data.merge(file_data)
end
def yaml_from_repo
repository.blob_data_at(ref, static_site_editor_config_file)
rescue GRPC::NotFound
# Return nil in the case of a GRPC::NotFound exception, so the default config will be used.
# Allow any other unexpected exception will be tracked and re-raised.
nil
end
end
end
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