Module: Payment3p

Defined in:
lib/payment_3p.rb,
lib/payment_3p/railtie.rb,
lib/payment_3p/version.rb,
lib/payment_3p/generators/config_generator.rb

Defined Under Namespace

Modules: Generators Classes: Railtie

Constant Summary collapse

VERSION = 
"0.0.1"

Class Method Summary collapse

Class Method Details

.config ⇒ Object 



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# File 'lib/payment_3p.rb', line 35

def self.config
  @config
end

.configure(opts = {}) ⇒ Object

Configure through hash



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# File 'lib/payment_3p.rb', line 18

def self.configure(opts = {})
  opts.each {|k,v| @config[k] = v if @valid_config_keys.include? k}
end

.configure_with(path_to_yaml_file) ⇒ Object

Configure through yaml file



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# File 'lib/payment_3p.rb', line 23

def self.configure_with(path_to_yaml_file)
  begin
    config = HashWithIndifferentAccess.new(YAML::load(IO.read(path_to_yaml_file)))
  rescue Errno::ENOENT
    Rails.logger.warn("YAML configuration file couldn't be found. Using defaults."); return
  rescue Psych::SyntaxError
    Rails.logger.warn("YAML configuration file contains invalid syntax. Using defaults."); return
  end

  configure(config)
end

.gem_root ⇒ Object

Your code goes here…



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# File 'lib/payment_3p.rb', line 9

def self.gem_root
  File.expand_path '../..', __FILE__
end

.payment_url(parameters) ⇒ Object

vpc_MerchTxnRef, vpc_ReturnURL, vpc_OrderInfo, vpc_Amount



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# File 'lib/payment_3p.rb', line 41

def self.payment_url parameters
  vpcURL=@config[:payment_endpoint]

  md5HashData = @config[:secure_secret]
  vpc_parameters = {vpc_Version: "1", vpc_Command: "pay", vpc_AccessCode: @config[:vpc_AccessCode], vpc_MerchTxnRef: parameters[:vpc_MerchTxnRef], vpc_Merchant: @config[:vpc_Merchant], vpc_OrderInfo: parameters[:vpc_OrderInfo], vpc_Amount: parameters[:vpc_Amount], vpc_Locale: "en", vpc_ReturnURL: parameters[:vpc_ReturnURL]}

  vpc_ordered_parameters =  vpc_parameters.sort_by {|key, value| key} #returns array of arrays

  url_params = []
  vpc_ordered_parameters.each do |key, value|
    if value.length > 0
      url_params << Rack::Utils.escape(key)+"="+Rack::Utils.escape(value)
      md5HashData += value
    end
  end
  vpcURL += url_params.join("&")
  if(@config[:secure_secret].length > 0)
    vpcURL += "&vpc_SecureHash=" + Digest::MD5.hexdigest(md5HashData).upcase
  end

  vpcURL
end

.validate_response(response) ⇒ Object

TODO: another validation needs to be added for the transaction number and amount



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# File 'lib/payment_3p.rb', line 66

def self.validate_response response
  
  #strip the input hash from other parameters than vpc_ parameters
  vpc_response = response.reject{|key,value| !(key =~ /vpc_(.*)/) }

  vpc_Txn_Secure_Hash = vpc_response.delete(:vpc_SecureHash)

  if (@config[:secure_secret].length > 0 && vpc_response[:vpc_TxnResponseCode] != "7" && vpc_response[:vpc_TxnResponseCode] != "No Value Returned")
    md5HashData = @config[:secure_secret]
    vpc_response.each do |key, value|
      if (key != "vpc_SecureHash" || value.length > 0)
        md5HashData += value
      end
    end
    if (vpc_Txn_Secure_Hash.upcase == Digest::MD5.hexdigest(md5HashData).upcase)
      true
    else
      false
    end

  else
    # No 'SECURE_SECRET' present.
    false
  end
end