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module AuthorizeNet::SIM |
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# The SIM response class. Handles parsing the response from the gateway. Also |
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# provides a few relay response helpers used to implement Direct Post Method. |
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class Response < AuthorizeNet::KeyValueResponse |
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# Our MD5 digest generator. |
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@@digest = OpenSSL::Digest.new('md5') |
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include AuthorizeNet::SIM::Fields |
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# Constructs a new response object from a +raw_response+. Provides utility methods |
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# for validating the response as authentic, and for handling the Direct Post Method |
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# relay response. |
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# |
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# +raw_response+:: The raw response, either a string in POST body or GET query string format, or a hash of key/value pairs. |
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# |
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# Typical usage: |
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# response = AuthorizeNet::SIM::Response("x_first_name=John&x_last_name=Doe") |
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def initialize(raw_response) |
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@raw_response = raw_response |
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@custom_fields = {} |
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@fields = {} |
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parse_response(@raw_response) |
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end |
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# Returns True if the MD5 hash found in the response payload validates using |
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# the supplied api_login and secret merchant_value (THIS IS NOT YOUR API KEY). |
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View Code Duplication |
def valid_md5?(api_login, merchant_value) |
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return false if @fields[:MD5_Hash].nil? |
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@@digest.hexdigest("#{merchant_value}#{api_login}#{@fields[:trans_id]}#{@fields[:amount]}").casecmp(@fields[:MD5_Hash]).zero? |
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end |
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# Returns an HTML string that can be returned to the gateway during the Relay Response, |
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# and will send the user on to URL you specify. Takes a hash of options, currently the |
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# only option is :include, which can be True to include all fields returned in the response |
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# as query string parameters, or it can be an array of fields to include. |
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def direct_post_reply(url, options = {}) |
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url = direct_post_url(url, options[:include]) if options.key?(:include) |
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js_url = url.tr("'", '\'') |
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html_url = url.gsub('&', '&').tr('"', "\"") |
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html = <<-HTML |
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<html><head><script type="text/javascript" charset="utf-8">window.location='#{js_url}';</script><noscript><meta http-equiv="refresh" content="1;url=#{html_url}"></noscript></head><body></body></html> |
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HTML |
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end |
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# Returns an URL with the fields found in the response and specified in include_fields attached as |
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# part of the URL's query string. If you pass true instead of an array of fields, all fields will be |
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# attached. |
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def direct_post_url(base_url, include_fields = true) |
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url = base_url |
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if include_fields |
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fields = [] |
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case include_fields |
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when TrueClass |
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fields = FIELDS.collect do |k| |
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k_str = k.to_s |
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k_str[2..k_str.length].to_sym |
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end |
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when Array |
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fields = include_fields |
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else |
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fields = include_fields.to_a |
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end |
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parsed_url = URI.parse(url) |
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if parsed_url.query.nil? |
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parsed_url.query = '' |
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elsif !parsed_url.query.empty? |
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parsed_url.query = parsed_url.query.chomp('&') + '&' |
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end |
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parsed_url.query += ((fields.select { |k| @fields.key?(k) }).collect { |k| to_param(k, @fields[k]) }).join('&') |
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parsed_url.query.chomp('&') |
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url = parsed_url.to_s |
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end |
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url |
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end |
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# Check to see if the response indicated success. Success is defined as a valid MD5 hash |
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# and an response code of AuthorizeNet::Response::ResponseCode::APPROVED. |
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def success?(api_login, merchant_value) |
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valid_md5?(api_login, merchant_value) && approved? |
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end |
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# Returns the transaction's authorization code. This should be shown to the |
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# end user. |
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def authorization_code |
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@fields[:auth_code] |
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end |
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# Returns the transaction's authorization id. You will need this for future void, refund |
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# and prior authorization capture requests. |
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def transaction_id |
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@fields[:trans_id] |
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end |
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# Returns the customer id from the response. |
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def customer_id |
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@fields[:cust_id] |
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end |
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# Returns a response code (from AVSResponseCode) indicating the result of any Address Verification |
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# Service checks. |
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def avs_response |
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@fields[:avs_code] |
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end |
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#:enddoc: |
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protected |
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# Internal helper to parse the raw response object. It handles both raw POST bodies and |
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# hashes. |
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def parse_response(raw_response) |
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case raw_response |
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when Hash |
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raw_response.each do |k, v| |
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k = k.to_sym |
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if FIELDS.include?(k) |
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@fields[to_internal_field(k)] = v # remove x_ from sym and stick in @fields |
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else |
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@custom_fields[k] = v |
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end |
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end |
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when String |
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# convert to hash and re-parse |
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hash = CGI.parse(raw_response) |
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hash.each do |k, v| |
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hash[k] = v[0] if v.is_a?(Array) && v.length == 1 |
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end |
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parse_response(hash) |
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else |
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parse_response(@raw_response.to_s) |
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end |
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end |
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end |
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end |
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