authorizenet.cpp

// ProcessAuthorizeNet.cpp
// Example program to process Authorize.net credit card 
// transaction using Rude Socket library
// COPYRIGHT 2007 Matt Flood
// All Rights Reserved

#include <rude/socket.h>

#include <string>
#include <iostream>

using namespace std;
using namespace rude;

int main(void)
{
	// 1. Configure the data we need to form the request
	// In real-world applications, you will want to untaint and url-encode
	// this information if it is obtained from another source (eg. from a CGI application)
	//
	/////////////////////////

	// Order information
	//
	string track = "1000"; // Internal tracking number eg. the invoice number
	string ordertotal = "6.34"; // Total to charge the credit card
	
	// Credit Card information
	//
	string cardnumber = "5123456789012346"; // Credit Card Number
        string cardexpires = "0307"; // Credit Card Expiration Date (MMYY)
	string card_securitycode="123"; // Credit Card CVV2 Code
	string card_holder_firstname="Buck"; // 
	string card_holder_lastname="Rogers";

	// You Authorize.net account information
	//
	string authnet_login="SOMELOGIN"; // Your Authorize.net login information
        string authnet_passwd="SOMEPASSWD"; // Your Authorize.net password
	
	// Authorize.net Test Mode
	//  Set to uppercase TRUE for test mode
	//  Set to uppercase FALSE to go live
	//
	string testmode="TRUE"; 

	// Address/path of the authorize.net services
	//
	string authnet_server="secure.authorize.net";
	string authnet_path="/gateway/transact.dll";


	// 2. Build the query String
	//   In real-world app, you should url-encode anything that is not hard coded
	////////////////////////////

	string querystring = "x_version=3.1";
	querystring += "&x_delim_data=True";
 	querystring += "&x_login=";
	querystring += authnet_login;
        querystring += "&x_password=";
	querystring += authnet_passwd;
        querystring += "&x_type=AUTH_CAPTURE";
	querystring += "&X_TEST_REQUEST=TRUE";
	querystring += "&x_exp_date=";
	querystring += cardexpires;
	querystring += "&x_card_num=";
	querystring += cardnumber;
	querystring += "&x_cust_id=";
	querystring += track;
	querystring += "&x_amount=";
	querystring += ordertotal;
	querystring += "&x_first_name=";
	querystring += card_holder_firstname;
	querystring += "&x_last_name=";
	querystring += card_holder_lastname;
	querystring += "&x_card_code=";
	querystring += card_securitycode; 

	// We will need the size of the querystring as a string (not an int)
	// when building the HTTP request
	//
	char querystring_length[20];
	sprintf(querystring_length, "%d", querystring.size());


	// 3. Use the Rude Socket Object to send the secure request and receive the response
	//////////////////////////

	// Create socket object
	//
	Socket socket;
	
	// Connect to remote server using SSL
	//	
	if(!socket.connectSSL(authnet_server.c_str(), 443))
	{
		cerr << socket.getError() << "\n";
		return 1;
	}

	// Send the HTTP request
	//
	socket.sends("POST ");
	socket.sends(authnet_path.c_str());
	socket.sends(" HTTP/1.0\n");
	socket.sends("Host: ");
        socket.sends(authnet_server.c_str());
        socket.sends("\n");
	socket.sends("Content-Type: application/x-www-form-urlencoded\n");
	socket.sends("Content-Length: ");
	socket.sends(querystring_length);
	socket.sends("\n\n");
	socket.sends(querystring.c_str());
	
	// Read the Response
	//
	const char *result = socket.reads();

	// NOTE: The response includes the HTTP response header
	
	if(result)
	{
		
		// convert result to a string so we can use c++ string functions to parse it
		// 
		string str_result = result;

		// close the socket
		//
		socket.close();
		
               
		// The existance of the following substring indicates that the card was accepted
		// 
		int position = str_result.find("1,1,1",0);
		
                if(position >= 0)
		{
			cout << "Transaction was successful\n";
                        return 0;
		}
		else
		{
			// We need to get to the end of the headers, 
			// Content-Length is usually the last one, so we look for it
			// 
                        position = str_result.find("Content-Length:", 0);
                        if(position < 0)
                        {
			    // We received an unexpected response
			    //
			    cerr << "Server Response did not include Content-Length field:\n";
                            cerr << result;
                            cerr << "\n";
                        }

                        // Reason for failure is in position 4 of a comma separated list
                        // Look for 3 commas
                        if( position = str_result.find(",", position) )
			{
                            if( position = str_result.find(",", (position+ 1)) )
			    {
                        	if ( position =str_result.find(",", (position + 1)) )
				{
					// We are at the beginning of the error message
					// Find the end of the message by finding the comma that follows it
					//
                        		int end_position = str_result.find(",", (position + 1));
                                        if(!end_position)
					{
						// Could not find trailing comma, use the end of the entire result instead
						//	
						end_position = str_result.size() -1;
					}					
					
					// Extract the error message
					//
                        		string reason = str_result.substr((position + 1), end_position - position - 1);
                       			
					// Display error message
					// 
					cerr << reason << "\n";

					return 1;
				}
			    }
			}
		}
	}
	else
	{
		// report the error 
		//
		cerr << socket.getError() << "\n";

		// close the socket
		//
		socket.close();

		// exit program with failure (non-zero) status
		//
		return 1;
	}
}