lib/passworks/faraday/http_exception_middleware.rb
require 'passworks/exception'
require 'faraday'
module Passworks
module Faraday
class HttpExceptionMiddleware < ::Faraday::Middleware
def call(env)
@app.call(env).on_complete do |response|
case response[:status].to_i
when 400
raise Passworks::Exceptions::BadRequest, error_400(response)
when 401
raise Passworks::Exceptions::Unauthorized, error_400(response)
when 402
raise Passworks::Exceptions::PaymentRequired, error_400(response)
when 403
raise Passworks::Exceptions::Forbidden, error_400(response)
when 404
raise Passworks::Exceptions::NotFound, error_400(response)
when 405
raise Passworks::Exceptions::MethodNotAllowed, error_400(response)
when 412
raise Passworks::Exceptions::PreconditionFailed, error_400(response)
when 420
raise Passworks::Exceptions::EnhanceYourCalm, error_400(response)
when 422
raise Passworks::Exceptions::UnprocessableEntity, error_400(response)
when 500
raise Passworks::Exceptions::InternalServerError, error_500(response, 'Internal Server Error' , 'The server encountered an unexpected condition which prevented it from fulfilling the request.')
when 501
raise Passworks::Exceptions::NotImplemented, error_500(response, 'Not Implemented' , 'Current method not implemented.')
when 502
raise Passworks::Exceptions::BadGateway, error_500(response, 'Bad Gateway', 'The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.')
when 503
raise Passworks::Exceptions::ServiceUnavailable, error_500(response, 'Service Unavailable', 'The server is currently unable to handle the request due to a temporary overloading or maintenance of the server.')
when 504
raise Passworks::Exceptions::GatewayTimeout, error_500(response, 'Gateway Timeout', 'The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI.')
end
end
end
def initialize(app)
super
@parser = nil
end
private
def error_400(response)
"#{response[:method].to_s.upcase} #{response[:url].to_s}: #{response[:status]}\n#{error_body(response)}"
end
def error_500(response, short_description, long_description)
end
# {"status_code"=>412, "error_code"=>10103, "message"=>"Asset in use by 1 templates, e.g.: Cocacola"}
def error_body(response)
body = response[:body]
# body gets passed as a string, not sure if it is passed as something else from other spots?
if not body.nil? and not body.empty? and body.kind_of?(String)
body = ::JSON.parse(body)
end
if body.nil?
nil
elsif body['errors']
body['errors'].collect{ |k,v|
errors = v.is_a?(String) ? v : v.join(',')
"#{k}: #{errors}"
}.join("\n")
end
end
end
end
end