Module: RazorRisk::Cassini::Applications::RESTFramework::RouteVerbDispatch

Includes:
Pantheios, Xqsr3::Quality::ParameterChecking
Defined in:
lib/razor_risk/cassini/applications/rest_framework/route_verb_dispatcher.rb

Overview

########################################################################## modules

Instance Method Summary collapse

Instance Method Details

#dispatch(supplier, *args, **options) ⇒ Object 



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# File 'lib/razor_risk/cassini/applications/rest_framework/route_verb_dispatcher.rb', line 39

def dispatch supplier, *args, **options

    trace ParamNames[ :supplier, :args, :options ], supplier, args, options

    if ::Class === supplier

        supplier_class  =   supplier
        supplier        =   supplier_class.new(self, self.class, *args, **options)
    else

        supplier_class  =   supplier.class
    end

    if $PARAMETER_CHECKING

        check_parameter supplier, 'supplier', responds_to: :handle
    end

    verb    =   (options[:verb] || request.request_method).to_s.downcase.to_sym

    # validate 'Accept'

    validate_accept(request, supplier_class::HTTP_ACCEPTS) if supplier_class.const_defined?(:HTTP_ACCEPTS)

    # validate 'Content-Type'

    validate_content_type(request, supplier_class::HTTP_CONTENT_TYPES) if supplier_class.const_defined?(:HTTP_CONTENT_TYPES)

    # validate query parameters

    validated_params = validate_query_parameters(params, supplier_class.const_defined?(:QUERY_PARAMETERS) ?  supplier_class::QUERY_PARAMETERS : nil, supplier_class.const_defined?(:ROUTE_VARIABLES) ?  supplier_class::ROUTE_VARIABLES : nil)

    # handle base-64 for all params

    validated_params = validated_params.merge(validated_params) do |k, o, n|

        case n
        when ::String

            s   =   n.strip

            if /^===(.+)===$/ =~ s

                e   =   $1

                begin

                    Base64.strict_decode64(e).chomp
                rescue ::ArgumentError => x

                    halt(*[ 422, {}, "value for query parameter '#{k}' is malformed Base-64: a valid Base-64 string must be prefixed and suffixed by '==='" ])
                end
            else

                n
            end
        else

            n
        end
    end

    # execute handler
    resp = supplier.handle(env, validated_params, request, response)

    # TODO: post-process result, in terms of converting to 'Accept' type
    # and calling halt / status appropriately

    resp
end