adding get credit card method

lib/rbraspag/credit_card.rb

@@ -147,6 +147,7 @@ def self.void(order_id)
         })
     end
 
+    # saves credit card in Braspag PCI Compliant
     def self.save(params = {})
       connection = Braspag::Connection.instance
       params[:merchant_id] = connection.merchant_id
@@ -173,6 +174,27 @@ def self.save(params = {})
 
     end
 
+    # request the credit card info in Braspag PCI Compliant
+    def self.get(just_click_key)
+      connection = Braspag::Connection.instance
+
+      raise InvalidJustClickKey unless valid_just_click_key?(just_click_key)
+
+      request = ::HTTPI::Request.new(self.get_protected_card_url)
+      request.body = { 'getCreditCardRequestWS' => {:loja => connection.merchant_id, :justClickKey => just_click_key} }
+
+      response = ::HTTPI.post(request)
+
+      response = Utils::convert_to_map(response.body, {
+          :holder => "CardHolder",
+          :card_number => "CardNumber",
+          :expiration => "CardExpiration",
+          :masked_card_number => "MaskedCardNumber"
+        })
+
+      raise UnknownError if response[:card_number].nil?
+      response
+    end
 
     def self.info(order_id)
       connection = Braspag::Connection.instance
@@ -240,6 +262,9 @@ def self.check_protected_card_params(params)
       end
     end
 
+    def self.valid_just_click_key?(just_click_key)
+      (just_click_key.is_a?(String) && just_click_key.size == 36)
+    end
 
     def self.info_url
       connection = Braspag::Connection.instance

lib/rbraspag/errors.rb

@@ -23,6 +23,7 @@ class InvalidExpirationDate < Exception ; end
   class InvalidSecurityCode < Exception ; end
   class InvalidType < Exception ; end
   class InvalidNumberPayments < Exception ; end
+  class InvalidJustClickKey < Exception ; end
   class UnknownError < Exception ; end
 
   class Connection

spec/credit_card_spec.rb

@@ -251,6 +251,75 @@
     end
   end
 
+  describe ".get" do
+    let(:get_protected_card_url) { "http://braspag/bla" }
+
+    let(:invalid_xml) do
+      <<-EOXML
+      <DadosCartao xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+                   xmlns="http://www.pagador.com.br/">
+        <CardHolder>Joao Maria Souza</CardHolder>
+        <CardNumber></CardNumber>
+        <CardExpiration>10/12</CardExpiration>
+        <MaskedCardNumber>******9999</MaskedCardNumber>
+      </DadosCartao>
+      EOXML
+    end
+
+    let(:valid_xml) do
+      <<-EOXML
+      <DadosCartao xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+                   xmlns="http://www.pagador.com.br/">
+        <CardHolder>Joao Maria Souza</CardHolder>
+        <CardNumber>9999999999</CardNumber>
+        <CardExpiration>10/12</CardExpiration>
+        <MaskedCardNumber>******9999</MaskedCardNumber>
+      </DadosCartao>
+      EOXML
+    end
+
+    it "should raise an error when just click key is not valid" do
+      Braspag::CreditCard.should_receive(:valid_just_click_key?)
+                         .with("bla")
+                         .and_return(false)
+
+      expect {
+        Braspag::CreditCard.get "bla"
+      }.to raise_error(Braspag::InvalidJustClickKey)
+    end
+
+    it "should raise an error when Braspag returned an invalid xml as response" do
+      FakeWeb.register_uri(:post, get_protected_card_url, :body => invalid_xml)
+
+      Braspag::CreditCard.should_receive(:get_protected_card_url)
+                         .and_return(get_protected_card_url)
+
+      expect {
+        Braspag::CreditCard.get("b0b0b0b0-bbbb-4d4d-bd27-f1f1f1ededed")
+      }.to raise_error(Braspag::UnknownError)
+    end
+
+    it "should return a Hash when Braspag returned a valid xml as response" do
+      FakeWeb.register_uri(:post, get_protected_card_url, :body => valid_xml)
+
+      Braspag::CreditCard.should_receive(:get_protected_card_url)
+                         .and_return(get_protected_card_url)
+
+      response = Braspag::CreditCard.get("b0b0b0b0-bbbb-4d4d-bd27-f1f1f1ededed")
+      response.should be_kind_of Hash
+
+      response.should == {
+        :holder => "Joao Maria Souza",
+        :expiration => "10/12",
+        :card_number => "9" * 10,
+        :masked_card_number => "*" * 6 + "9" * 4
+      }
+    end
+
+  end
+
 
   describe ".info" do
     let(:info_url) { "http://braspag/bla" }