debian-mirror-gitlab/app/graphql/gitlab_schema.rb

# frozen_string_literal: true

class GitlabSchema < GraphQL::Schema
  # Currently an IntrospectionQuery has a complexity of 179.
  # These values will evolve over time.
  DEFAULT_MAX_COMPLEXITY   = 200
  AUTHENTICATED_COMPLEXITY = 250
  ADMIN_COMPLEXITY         = 300

  use BatchLoader::GraphQL
  use Gitlab::Graphql::Authorize
  use Gitlab::Graphql::Present
  use Gitlab::Graphql::Connections
  use Gitlab::Graphql::GenericTracing

  query_analyzer Gitlab::Graphql::QueryAnalyzers::LogQueryComplexity.analyzer

  query(Types::QueryType)

  default_max_page_size 100

  max_complexity DEFAULT_MAX_COMPLEXITY

  mutation(Types::MutationType)

  def self.execute(query_str = nil, **kwargs)
    kwargs[:max_complexity] ||= max_query_complexity(kwargs[:context])

    super(query_str, **kwargs)
  end

  def self.max_query_complexity(ctx)
    current_user = ctx&.fetch(:current_user, nil)

    if current_user&.admin
      ADMIN_COMPLEXITY
    elsif current_user
      AUTHENTICATED_COMPLEXITY
    else
      DEFAULT_MAX_COMPLEXITY
    end
  end
end