debian-mirror-gitlab/app/controllers/graphql_controller.rb
2019-07-07 11:18:12 +05:30

60 lines
1.8 KiB
Ruby

# frozen_string_literal: true
class GraphqlController < ApplicationController
# Unauthenticated users have access to the API for public data
skip_before_action :authenticate_user!
# Allow missing CSRF tokens, this would mean that if a CSRF is invalid or missing,
# the user won't be authenticated but can proceed as an anonymous user.
#
# If a CSRF is valid, the user is authenticated. This makes it easier to play
# around in GraphiQL.
protect_from_forgery with: :null_session, only: :execute
before_action :check_graphql_feature_flag!
before_action :authorize_access_api!
before_action(only: [:execute]) { authenticate_sessionless_user!(:api) }
def execute
variables = Gitlab::Graphql::Variables.new(params[:variables]).to_h
query = params[:query]
operation_name = params[:operationName]
context = {
current_user: current_user
}
result = GitlabSchema.execute(query, variables: variables, context: context, operation_name: operation_name)
render json: result
end
rescue_from StandardError do |exception|
log_exception(exception)
render_error("Internal server error")
end
rescue_from Gitlab::Graphql::Variables::Invalid do |exception|
render_error(exception.message, status: :unprocessable_entity)
end
private
def authorize_access_api!
access_denied!("API not accessible for user.") unless can?(current_user, :access_api)
end
# Overridden from the ApplicationController to make the response look like
# a GraphQL response. That is nicely picked up in Graphiql.
def render_404
render_error("Not found!", status: :not_found)
end
def render_error(message, status: 500)
error = { errors: [message: message] }
render json: error, status: status
end
def check_graphql_feature_flag!
render_404 unless Gitlab::Graphql.enabled?
end
end