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# frozen_string_literal: true
module Ci
module Components
class FetchService
include Gitlab::Utils::StrongMemoize
COMPONENT_PATHS = [
::Gitlab::Ci::Components::InstancePath
].freeze
def initialize(address:, current_user:)
@address = address
@current_user = current_user
end
def execute
unless component_path_class
return ServiceResponse.error(
message: "#{error_prefix} the component path is not supported",
reason: :unsupported_path)
end
component_path = component_path_class.new(address: address)
result = component_path.fetch_content!(current_user: current_user)
if result&.content
ServiceResponse.success(payload: {
content: result.content,
path: result.path,
project: component_path.project,
sha: component_path.sha,
name: component_path.component_name
})
elsif component_path.invalid_usage_for_latest?
ServiceResponse.error(
message: "#{error_prefix} The ~latest version reference is not supported for non-catalog resources. " \
'Use a tag, branch, or commit SHA instead.',
reason: :invalid_usage)
else
ServiceResponse.error(message: "#{error_prefix} content not found", reason: :content_not_found)
end
rescue Gitlab::Access::AccessDeniedError
if current_user.external? && component_path.project.internal?
ServiceResponse.error(
message: "#{error_prefix} project is `Internal`, it cannot be accessed by an External User",
reason: :not_allowed)
else
ServiceResponse.error(
message: "#{error_prefix} project does not exist or you don't have sufficient permissions",
reason: :not_allowed)
end
end
private
attr_reader :current_user, :address
def component_path_class
COMPONENT_PATHS.find { |klass| klass.match?(address) }
end
strong_memoize_attr :component_path_class
def error_prefix
"Component '#{address}' -"
end
end
end
end
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