debian-mirror-gitlab/lib/gitlab/graphql/variables.rb
2021-12-11 22:18:48 +05:30

44 lines
1.2 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module Graphql
class Variables
Invalid = Class.new(Gitlab::Graphql::StandardGraphqlError)
def initialize(param)
@param = param
end
def to_h
ensure_hash(@param)
end
private
# Handle form data, JSON body, or a blank value
def ensure_hash(ambiguous_param)
case ambiguous_param
when String
if ambiguous_param.present?
ensure_hash(Gitlab::Json.parse(ambiguous_param))
else
{}
end
when Hash
ambiguous_param
when ActionController::Parameters
# We can and have to trust the "Parameters" because `graphql-ruby` handles this hash safely
# Also, `graphql-ruby` uses hash-specific methods, for example `size`:
# https://sourcegraph.com/github.com/rmosolgo/graphql-ruby@61232b03412df6685406fc46c414e11d3f447817/-/blob/lib/graphql/query.rb?L304
ambiguous_param.to_unsafe_h
when nil
{}
else
raise Invalid, "Unexpected parameter: #{ambiguous_param}"
end
rescue JSON::ParserError => e
raise Invalid, e
end
end
end
end