PaymentCreditCard.module

<?php

require_once(dirname(__FILE__) . "/PaymentAbstract.php");

// If your payment processor has a library, SDK, or similar, require it here.

class PaymentCreditCard extends PaymentAbstract {
	
	public static function getModuleInfo()
	{
		return array(
			"title" => "Credit Card Payments",
			"version" => 001,
			"summary" => "Generic payment method for sending credit card orders to a payment processor",
			"singular" => false,
			"autoload" => false,
			'requires' => array(
				"ShoppingCart",
				"ShoppingCheckout"
			)
			);
	}

	public function init() {
		$this->title = $this->_("Credit Card");
	}
	

	public function processPayment(Page $order) {
		function renderForm() {
			$states = array( "initial_value" => " - Select Province/State - ","AB" => "Alberta","BC" => "British Columbia","MB" => "Manitoba","NB" => "New Burnswick","NL" => "Newfoundland and Labrador","NS" => "Nova Scotia","NT" => "Northwest Territories","NU" => "Nunavut","ON" => "Ontario","PE" => "Prince Edward Island","QC" => "Quebec","SK" => "Saskatchewan","YT" => "Yukon","divider" => "---------------","AL" => "Alabama","AK" => "Alaska","AZ" => "Arizona","AR" => "Arkansas","CA" => "California","CO" => "Colorado","CT" => "Connecticut","DE" => "Delaware","DC" => "District of Columbia","FL" => "Florida","GA" => "Georgia","HI" => "Hawaii","ID" => "Idaho","IL" => "Illinois","IN" => "Indiana","IA" => "Iowa","KS" => "Kansas","KY" => "Kentucky","LA" => "Louisiana","ME" => "Maine","MD" => "Maryland","MA" => "Massachusetts","MI" => "Michigan","MN" => "Minnesota","MS" => "Mississippi","MO" => "Missouri","MT" => "Montana","NE" => "Nebraska","NV" => "Nevada","NH" => "New Hampshire","NJ" => "New Jersey","NM" => "New Mexico","NY" => "New York","NC" => "North Carolina","ND" => "North Dakota","OH" => "Ohio","OK" => "Oklahoma","OR" => "Oregon","PA" => "Pennsylvania","RI" => "Rhode Island","SC" => "South Carolina","SD" => "South Dakota","TN" => "Tennessee","TX" => "Texas","UT" => "Utah","VT" => "Vermont","VA" => "Virginia","WA" => "Washington","WV" => "West Virginia","WI" => "Wisconsin","WY" => "Wyoming");

			$modules = wire("modules");

			$out = "";

			$form = $modules->get("InputfieldForm");
			$form->action = "./?payment=submitted";
			$form->method = "post";
			$form->attr("id+name","cc_payment_form");

			$field = $modules->get("InputfieldText");
			$field->placeholder = "Name on Card";
			$field->label = "Name on Card";
			$field->attr("id+name","cc_name_on_card");
			$field->required = 1;
			$form->append($field);

			$field = $modules->get("InputfieldText");
			$field->label = "Credit Card Number";
			$field->placeholder = "Card Number";
			$field->attr("id+name","cc_card_number");
			$field->required = 1;
			$form->append($field);

			$select = $modules->get("InputfieldSelect");
			$select->label = "Expiration Month";
			$select->attr("id+name","cc_expiration_month");
			$select->addOption("", "Month");
			for ($i = 1; $i < 13; ++$i)
			{
				$select->addOption($i, $i);
			}
			$select->value = "";
			$select->required = 1;
			$form->append($select);

			$select = $modules->get("InputfieldSelect");
			$select->label = "Expiration Year";
			$select->attr("id+name","cc_expiration_year");
			$select->addOption("", "Year");

				// Your processor may need the full year for the expiry date; change these values if so.
			for ($i = 14; $i < 30; ++$i)
			{
				$select->addOption($i, "20" . $i);
			}
			$select->value = "";
			$select->required = 1;
			$form->append($select);


			$field = $modules->get("InputfieldText");
			$field->label = "Card Security Number";
			$field->placeholder = "Card Security Number";
			$field->attr("id+name","cc_security_number");
			$field->required = 1;
			$form->append($field);

			$field = $modules->get("InputfieldText");
			$field->label = "Street Address";
			$field->placeholder = "Address";
			$field->attr("id+name","cc_street_address");
			$field->required = 1;
			$form->append($field);

			$field = $modules->get("InputfieldText");
			$field->label = "Zip / Postal Code";
			$field->placeholder = "Zip / Postal Code";
			$field->attr("id+name","cc_postalzip");
			$field->required = 1;
			$form->append($field);

			$select = $modules->get("InputfieldSelect");
			$select->label = "State / Province";
			$select->attr("id+name","cc_state_province");
			foreach ($states as $key=>$value)
			{
				$select->addOption($key, $value);
			}
			$select->required = 1;
			$form->append($select);

			$submit = $modules->get("InputfieldSubmit");
			$submit->attr("value","submit");
			$submit->attr("id+name","submit");
			$form->append($submit);

			$out .= $form->render();

			echo ($out);
		}

    	// Validate the credit card number. Use your own validation method if preferred, or let your payment processor handle validation

		function validate_credit_card($number)
		{

			$doubledNumber  = "";
			$odd  = false;

			for($i = strlen($number)-1; $i >=0; $i--)
			{
				$doubledNumber .= ($odd) ? $number[$i] * 2 : $number[$i];
				$odd	  = !$odd;
			}

			$sum = 0;

			for($i = 0; $i < strlen($doubledNumber); $i++)
				$sum += (int) $doubledNumber[$i];

			if (($sum % 10 ==0) && ($sum != 0))
			{
				return true;
			}

			else
			{
				return false;
			}
		} 


		$total = 0; 
		$error = false;

			// Calculate the total amount we need to submit to the payment processor

		foreach($order->children("check_access=0") as $p) 
		{
			$item_total = $p->sc_qty * $p->sc_price;
			$total = $total + $item_total;

		}

		if ($this->input->get->payment == "submitted")
		{
			$credit_card_info = array();

			foreach ($this->input->post as $key=>$value)
			{
				if (($value == ''))
				{
					$error = true;
				}
			}

			$name_on_card = wire('sanitizer')->text($this->input->post->cc_name_on_card);
			$credit_card_number = wire('sanitizer')->text($this->input->post->cc_card_number);
			$expiration_year = wire('sanitizer')->text($this->input->post->cc_expiration_year);
			$expiration_month = wire('sanitizer')->text($this->input->post->cc_expiration_month);

			$ccv = wire('sanitizer')->text($this->input->post->cc_security_number);

			$street_address = wire('sanitizer')->text($this->input->post->cc_street_address);
			$state = wire('sanitizer')->text($this->input->post->cc_state_province);

			$validate_cc = validate_credit_card($credit_card_number);
			if ($validate_cc !== true || $error == true)
			{
				echo 'Please make sure the card information is valid';
				renderForm();
			}
			else 
			{
				$credit_card_info["name_on_card"] = $name_on_card;
				$credit_card_info["credit_card_number"] = $credit_card_number;
				$credit_card_info["ccv"] = $ccv;
				$credit_card_info["expiration_month"] = $expiration_month;
				$credit_card_info["expiration_year"] = $expiration_year;
				$credit_card_info["address"] = $street_address;
				$credit_card_info["state"] = $state;
				$credit_card_info["postalzip"] = $postalzip;

				$total = $total;

					/*Put the code for sending $credit_card_info and $total to the payment processor here, something like this:

					$result = $payment->process($credit_card_info, $total);

					Change the following condition to match whatever your payment processor returns.
					*/

					if ($result == false || $result == "Declined")
					{
						echo "We were unable to process your transaction. Please double-check your information and try again.";
					}
					else 
					{

						$order->setOutputFormatting(false);
						$order->sc_paid = time();

						$order->removeStatus(Page::statusUnpublished);
						$order->save();
						
						$this->session->redirect($this->completedUrl);	

					}
				}
			}
			else 
			{
				renderForm();
			}
		}
	}